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Initial release

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Sergey Kalinin 2021-01-15 18:49:37 +03:00
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# Что это
Набор скриптов и сервисов для мониторинга различного хозяйства в zabbix.
- bareos - мониторинг задач bareos
- check_dns_records - мониторинг состояния и изменений в любых DNS записях для любых заданных доменов
- check_email_delivery - проверка прохождения почтовых сообщений как на, так и с заданных почтовых серверов
- lxs_fs_monitoring - проверка состояния файловой системы LXS контейнеров

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## Мониторинг Bareos в Zabbix
### bareos_get_all.sh
Скрипт для получения данных о клиентах и заданиях в Bareos для использования в zabbix.
Возможна работа как с zabbix-agent так и zabbix-sender
# Использование:
Предварительно необходимо создать узел в zabbix и прикрепить к нему шаблон Template_Bareos_Clients.xml
- Вывести список клиентов ввиде zabbix discovery JSON
```bareos_get_all.sh clients-discovery```
- Вывести список названий заданий (job) для клиента
```bareos_get_all.sh client-list-job _CLIENT_NAME_```
- Получить статусы всех заданий для клиента
```bareos_get_all.sh client-get-jobs-status _CLIENT_NAME_```
- Получить статус задания
```bareos_get_all.sh get-job-status _CLIENT_NAME_ _JOB_NAME_```
- Вывести количество задач с определенным статусом
```bareos_get_all.sh count-jobs _JOB_STATUS```
Где:
```
_CLIENT_NAME_ - имя клиента в bareos
_JOB_NAME_ - название задачи в bareos
_JOB_STATUS_ - статус задания в терминах bareos:
T - Completed successfully
E - Terminated with errors
e - Non-fatal error
f - Fatal error
W - Terminated with warnings
```
Полный список доступен тут: https://docs.bareos.org/Appendix/CatalogTables.html#jobstatus)

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<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
<version>4.0</version>
<date>2020-11-18T12:58:04Z</date>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<templates>
<template>
<template>Template_Bareos_Clients</template>
<name>Template_Bareos_Clients</name>
<description/>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<applications>
<application>
<name>Bareos clients</name>
</application>
</applications>
<items/>
<discovery_rules>
<discovery_rule>
<name>Bareos clients</name>
<type>2</type>
<snmp_community/>
<snmp_oid/>
<key>bareos.clients</key>
<delay>0</delay>
<status>0</status>
<allowed_hosts/>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<params/>
<ipmi_sensor/>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<filter>
<evaltype>0</evaltype>
<formula/>
<conditions/>
</filter>
<lifetime>30d</lifetime>
<description/>
<item_prototypes>
<item_prototype>
<name>{#BAREOSCLIENT} job {#BAREOSJOB} status</name>
<type>2</type>
<snmp_community/>
<snmp_oid/>
<key>bareos.clients.job.status[{#BAREOSCLIENT}, {#BAREOSJOB}]</key>
<delay>0</delay>
<history>90d</history>
<trends>0</trends>
<status>0</status>
<value_type>4</value_type>
<allowed_hosts/>
<units/>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<params/>
<ipmi_sensor/>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>Bareos clients</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<preprocessing/>
<jmx_endpoint/>
<timeout>3s</timeout>
<url/>
<query_fields/>
<posts/>
<status_codes>200</status_codes>
<follow_redirects>1</follow_redirects>
<post_type>0</post_type>
<http_proxy/>
<headers/>
<retrieve_mode>0</retrieve_mode>
<request_method>0</request_method>
<output_format>0</output_format>
<allow_traps>0</allow_traps>
<ssl_cert_file/>
<ssl_key_file/>
<ssl_key_password/>
<verify_peer>0</verify_peer>
<verify_host>0</verify_host>
<application_prototypes/>
<master_item/>
</item_prototype>
</item_prototypes>
<trigger_prototypes>
<trigger_prototype>
<expression>{Template_Bareos_Clients:bareos.clients.job.status[{#BAREOSCLIENT}, {#BAREOSJOB}].iregexp(&quot;.+e&quot;,#1)}=1</expression>
<recovery_mode>0</recovery_mode>
<recovery_expression/>
<name>{HOSTNAME}. Статус задания {#BAREOSJOB} для {#BAREOSCLIENT}, ERROR</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>3</priority>
<description/>
<type>0</type>
<manual_close>1</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
<trigger_prototype>
<expression>{Template_Bareos_Clients:bareos.clients.job.status[{#BAREOSCLIENT}, {#BAREOSJOB}].regexp(&quot;.+f&quot;,#1)}=1</expression>
<recovery_mode>0</recovery_mode>
<recovery_expression/>
<name>{HOSTNAME}. Статус задания {#BAREOSJOB} для {#BAREOSCLIENT}, FATAL ERROR</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>3</priority>
<description/>
<type>0</type>
<manual_close>1</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
<trigger_prototype>
<expression>{Template_Bareos_Clients:bareos.clients.job.status[{#BAREOSCLIENT}, {#BAREOSJOB}].iregexp(&quot;.+w&quot;,#1)}=1</expression>
<recovery_mode>0</recovery_mode>
<recovery_expression/>
<name>{HOSTNAME}. Статус задания {#BAREOSJOB} для {#BAREOSCLIENT}, WARNING</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>2</priority>
<description/>
<type>0</type>
<manual_close>1</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
</trigger_prototypes>
<graph_prototypes/>
<host_prototypes/>
<jmx_endpoint/>
<timeout>3s</timeout>
<url/>
<query_fields/>
<posts/>
<status_codes>200</status_codes>
<follow_redirects>1</follow_redirects>
<post_type>0</post_type>
<http_proxy/>
<headers/>
<retrieve_mode>0</retrieve_mode>
<request_method>0</request_method>
<allow_traps>0</allow_traps>
<ssl_cert_file/>
<ssl_key_file/>
<ssl_key_password/>
<verify_peer>0</verify_peer>
<verify_host>0</verify_host>
</discovery_rule>
</discovery_rules>
<httptests/>
<macros/>
<templates/>
<screens/>
</template>
</templates>
</zabbix_export>

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#!/bin/bash
#-------------------------------------------------------------------
# Скрипт для получения данных о клиентах и заданиях в Bareos
# для использования в zabbix.
#
# Для работы нужен шаблон Template_Bareos_Clients.xml
#-------------------------------------------------------------------
# Author: Sergey Kalinin
# https://nuk-svk.ru
# svk@nuk-svk.ru
#-------------------------------------------------------------------
# Использование:
# - Вывести список клиентов ввиде zabbix discovery JSON
# bareos_get_all.sh clients-discovery
#
# - Вывести список названий заданий (job) для клиента
# bareos_get_all.sh client-list-job _CLIENT_NAME_
#
# - Получить статусы всех заданий для клиента
# bareos_get_all.sh client-get-jobs-status _CLIENT_NAME_
#
# - Получить статус задания
# bareos_get_all.sh get-job-status _CLIENT_NAME_ _JOB_NAME_
#
# - Вывести количество задач с определенным статусом
# bareos_get_all.sh count-jobs _JOB_STATUS
#
# Где:
# _CLIENT_NAME_ - имя клиента в bareos
# _JOB_NAME_ - название задачи в bareos
# _JOB_STATUS_ - статус задания в терминах bareos:
# T - Completed successfully
# E - Terminated with errors
# e - Non-fatal error
# f - Fatal error
# W - Terminated with warnings
# (полный список доступен тут:
# https://docs.bareos.org/Appendix/CatalogTables.html#jobstatus)
#-------------------------------------------------------------------
ZABBIX_AGENT=${ZABBIX_AGENT:-FALSE}
ZABBIX_SENDER=${ZABBIX_SENDER:-/usr/bin/zabbix_sender}
ZABBIX_AGENT_CONFIG=${ZABBIX_AGNT_CONFIG:-/etc/zabbix/zabbix_agentd.conf}
ZABBIX_HOST="${ZABBIX_HOST:-bareos}"
ZABBIX_AGENT=${ZABBIX_AGENT:-FALSE}
ZABBIX_SENDER=${ZABBIX_SENDER:-/usr/bin/zabbix_sender}
ZABBIX_AGENT_CONFIG=${ZABBIX_AGNT_CONFIG:-/etc/zabbix/zabbix_agentd.conf}
ZABBIX_HOST="${ZABBIX_HOST:-bareos}"
# За сколько дней выбирать задания
JOB_AGE=2
case "$1" in
get-clients-list)
#echo "run"
echo list clients | bconsole | cut -d '|' -f 3 -s | tr -d " " | grep -E '[[:alnum:]]' | grep -E -v "^name"
;;
clients-discovery)
#CLIENTS_LIST=$(echo list clients | bconsole | cut -d '|' -f 3 -s | tr -d " " | grep -E '[[:alnum:]]' | grep -E -v "^name")
#echo "${CLIENTS_LIST}"
CLIENTS_LIST=$(${0} get-clients-list)
CLIENTS_JSON="{\"data\":["
for LINE in ${CLIENTS_LIST}; do
JOB_NAMES=$($0 client-list-jobs ${LINE})
CLIENTS_JSON="${CLIENTS_JSON}"
for NAME in ${JOB_NAMES}; do
CLIENTS_JSON="${CLIENTS_JSON} {\"{#BAREOSCLIENT}\":\"$LINE\", \"{#BAREOSJOB}\":\"$NAME\"},"
done
CLIENTS_JSON="${CLIENTS_JSON}"
done
JSON_STRING="$(echo $CLIENTS_JSON | sed 's/,\+$//') ]}"
echo "$JSON_STRING"
if [ "$ZABBIX_AGENT" = "FALSE" ]; then
$ZABBIX_SENDER -vv -c $ZABBIX_AGENT_CONFIG -s "$ZABBIX_HOST" -k bareos.clients -o "${JSON_STRING}"
fi
;;
client-list-jobs)
echo list jobs client="$2" | bconsole | awk -F "|" '{print $3}' | tr -d " " | grep -E -v "(^$)|(^name)" | sort -u
;;
client-get-jobs-status)
JOBS_LIST=$(${0} client-list-jobs ${2})
for JOB in ${JOBS_LIST}; do
${0} get-job-status ${2} ${JOB}
done
;;
get-job-status)
CLIENT=${2}
JOB_NAME=${3}
#JOB_STATUS=$(echo list job=\"${JOB_NAME}\" days=${JOB_AGE} | bconsole | awk -F "|" '{print $5 $10}' | grep -E -v "(^$)|(starttime)" | tail -1)
JOB_STATUS=$(echo list job=\"${JOB_NAME}\" client=\"${CLIENT}\" | bconsole | awk -F "|" '{print $5 $10}' | grep -E -v "(^$)|(starttime)" | tail -1)
echo "${CLIENT} ${JOB_NAME} ${JOB_STATUS}"
if [ "$ZABBIX_AGENT" = "FALSE" ]; then
$ZABBIX_SENDER -c $ZABBIX_AGENT_CONFIG -s "$ZABBIX_HOST" -k "bareos.clients.job.status[${CLIENT}, ${JOB_NAME}]" -o "${JOB_STATUS}"
fi
;;
jobs-list)
JOB_STATUS="${1}"
echo show jobs | bconsole | grep -i "^ name =" | cut -d '"' -f 2 | while read LINE; do
if [[ $JOB_STATUS != "notrun" ]]; then
echo list job=\"$LINE\" jobstatus=$JOB_STATUS | bconsole -c /etc/bareos/bconsole.conf | cut -d"|" -f10 -s | tr -d ' '| grep "^${JOB_STATUS}$" | while read RES; do
# echo list job=\"$LINE\" | bconsole -c /etc/bareos/bconsole.conf | cut -d"|" -f10 | grep "${JOB_STATUS}" | while read RES; do
if [[ -n $RES ]]
then
echo "${RES}"
fi
done
fi
done
;;
get-all)
CLIENTS_LIST=$(${0} get-clients-list)
echo "${CLIENTS_LIST}"
for CLIENT in ${CLIENTS_LIST}; do
JOB_NAMES=$($0 client-list-jobs ${CLIENT})
echo "${JOB_NAMES}"
for JOB_NAME in ${JOB_NAMES}; do
${0} get-job-status ${CLIENT} ${JOB_NAME}
done
done
;;
esac

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.env

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FROM debian:buster-slim
RUN apt update -y \
&& apt install -y zabbix-agent dnsutils curl jq && \
rm -rf /var/lib/apt/lists/*
COPY zabbix_dns_records_check.sh /usr/local/bin/zabbix_dns_records_check.sh
COPY zabbix_create_host.sh /usr/local/bin/zabbix_create_host.sh
COPY run.sh /usr/local/bin/run.sh
ADD zabbix_jrpc_files/* /usr/local/lib/
COPY zabbix_templates/* /usr/local/lib/
RUN chmod 755 /usr/local/bin/*
RUN sed -i -e 's/^Server=127.0.0.1$/Server=${ZABBIX_SERVER}/' /etc/zabbix/zabbix_agentd.conf; \
sed -i -e 's/^ServerActive=127.0.0.1$/ServerActive=${ZABBIX_SERVER}/' /etc/zabbix/zabbix_agentd.conf
CMD /usr/local/bin/run.sh

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# Отслеживание изменений всех типов DNS-записей для домена
## Описание
Набор скриптов для мониторинга изменений в DNS для любого количества доменов.
Отслеживаются все записи представленные в БД DNS. Проверку можно осуществлять как просто в консоли, запуская скрипты, так и в интеграции с zabbix. Запуск сервиса может производиться как локально в системе (при помощи cron) так и ввиде docker-контейнера.
В состав сервиса входит:
- zabbix_create_host.sh - позволяет создать в zabbix группу узлов, шаблон, узел. В случае если объект уже есть, то будет получен его идентификатор. Используется Zabbix JSON RPC.
- zabbix_dns_records_check.sh - опрос DNS и получение всех типов записей с добавлением их в zabbix.
- run.sh - для запуска полного цикла проверки
- zabbix_jrpc_files - каталог содержит JSON-файлы с описанием процедур по взаимодействия с zabbix
- zabbix_templates - шаблоны zabbix
## Использование
Получения всех типов записей и создание элементов (items) в zabbix:
```zabbix_dns_records_check.sh read-json-discover```
Для получения данных по конкретному домену:
```zabbix_dns_records_check.sh domain.name.ru```
Для получения данных по конкретному домену и конкретному типу записи (A, MX, NS и т.д.):
```zabbix_dns_records_check.sh domain.name.ru MX```
Так как сервис заточен под работу с zabbix, то вышеозначенная операция сработает только в случае выставления переменной ```ZABBIX_AGENT="TRUE"```. Если значение данной переменной "FALSE", проверка будет производится сразу по всем записям и результат не будет выведен в консоль а будет отправлен в zabbix (при помощи zabbix-sender). Это правило верно и для режима "read-json-discover".
Получение всех записей для домена:
```zabbix_zimbra_domain_status.sh get-domain-records domain.name.ru```
Получение списка всех типов записей для домена:
```zabbix_zimbra_domain_status.sh get-domain-records-type domain.name.ru```
### Настройка переменных окружения для zabbix_zimbra_domain_status.sh
Список переменных с значениями по умолчанию:
```
BIN_DIR=/usr/local/bin
ETC_DIR=/usr/local/etc
# Адрес ДНС сервера
EXT_DNS=8.8.8.8
# Список доменов
DOMAIN_LIST="domain.1 domain.2 domain.n"
# Временные файлы
FILE_ZIMBRA_DOMAIN_STATUS='/tmp/domain_status'
FILE_ZIMBRA_DOMAIN_LIST='/tmp/domain_list'
# конфигурация заббикс-агента
ZABBIX_AGENT=FALSE
ZABBIX_SENDER=/usr/bin/zabbix_sender
ZABBIX_AGENT_CONFIG=/etc/zabbix/zabbix_agentd.conf
# имя узла в zabbix
ZABBIX_HOST="DNS records check"
```
### Настройка переменных окружения для zabbix_create_host.sh и значения по умолчанию
```
BIN_DIR=/usr/local/bin
ETC_DIR=/usr/local/etc
LIB_DIR=/usr/local/lib
# адрес zabbix сервера
ZABBIX_SERVER='http://zabbix.example.com'
# пользователь и пароль для доступа к zabbix-API
# по умолчанию не определены
ZABBIX_USER=
ZABBIX_PASSWORD=
# Название группы узлов в заббикс
ZABBIX_HOST_GROUP='Virtual Hosts'
# название узла в заббикс
ZABBIX_HOST="DNS records check"
# имя шаблона для прикрепления к узлу
ZABBIX_TEMPLATE_NAME="Template_DNS_Check"
```
### Запуск в Docker-контейнере
Предварительно требуется создать файл .env куда прописать имя и пароль пользователя для zabbix:
```
ZABBIX_USER=user
ZABBIX_PASSWORD=password
```
Если требуется переопеределить значения переменных то их можно либо прописать в этом-же файле либо в docker-compose.yml
Сборка контейнера в локальном репозитории:
```docker build --rm -t dns_records_check .```
Запуск осуществляется при помощи docker-compose:
```docker-compose up```
При первых запусках (2-3, связано с таймаутами в zabbix при создании новых элементов) в случае отсутствия в zabbix будут созданы: группа узлов, шаблон, узел, прикреплен к узлу шаблон.
При каждом запуске будет производится автоопределение типов DNS-записей и создание требуемых ключей (items) в заббикс (автообнаружение) для каждого домена.
Контейнер будет перезапускаться каждые 10 минут (настройка в файле run.sh).

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version: '3'
services:
dns_check:
image: ${CONTAINER_TEST_IMAGE:-dns_records_check:debug}
env_file: .env
environment:
- ZABBIX_HOST=DNS records check
- DOMAIN_LIST=example1.com example1.org example3.ru
#- ZABBX_USER="$ZABBIX_USER"
#- ZABBIX_PASSWORD="$ZABBIX_PASSWORD"
restart: always
build:
context: .

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stages:
- build
- release
- deploy
variables:
# CONTAINER_TEST_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
# CONTAINER_RELEASE_IMAGE: $CI_REGISTRY_IMAGE:latest
DOCKER_DRIVER: overlay2
IMAGE_PATH: $CI_REGISTRY/$CI_PROJECT_PATH
before_script:
- docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
- mkdir -p .ci_status
.dedicated-runner: &dedicated-runner
tags:
- build1-shell
dns_check_build:
<<: *dedicated-runner
stage: build
script:
- DOCKER_BUILDKIT=1 COMPOSE_DOCKER_CLI_BUILD=1 docker-compose build dns_check
- docker push $IMAGE_PATH/dns_records_check:dev
- touch .ci_status/dns_check_build
only:
refs:
- master
changes:
- check_dns_records/*/*.json
- check_dns_records/*/*.xml
- check_dns_records/Dockerfile
- check_dns_records/*.sh
- docker-compose.yml
artifacts:
paths:
- .ci_status/
dns_check_release:
<<: *dedicated-runner
stage: release
script:
- if [ -e .ci_status/dns_check_build ]; then docker pull $IMAGE_PATH/dns_records_check:dev; docker tag $IMAGE_PATH/dns_records_check:dev $IMAGE_PATH/dns_records_check:latest; docker push $IMAGE_PATH/dns_records_check:latest; touch .ci_status/dns_check_release; fi
artifacts:
paths:
- .ci_status/
dns_check_deploy:
<<: *dedicated-runner
stage: deploy
script:
- if [ -e .ci_status/dns_check_release ]; then docker-compose up -d --no-deps --build dns_check; fi

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#!/bin/bash
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
LIB_DIR=${LIB_DIR:-/usr/local/lib}
# Check host presents into zabbix
#/usr/local/bin/zabbix_create_host.sh
echo "Creating host into zabbix"
${BIN_DIR}/zabbix_create_host.sh
echo "Creating zabbix items for host"
# Get DNS records for all domain and send them into zabbix
#/usr/local/bin/zabbix_dns_records_check.sh read-json-discover
${BIN_DIR}/zabbix_dns_records_check.sh read-json-discover
echo "Getting DNS data"
DOMAIN_LIST=${DOMAIN_LIST:-"example1.com example1.org example3.ru"}
for LINE in ${DOMAIN_LIST}; do
#/usr/local/bin/zabbix_dns_records_check.sh $LINE
${BIN_DIR}/zabbix_dns_records_check.sh $LINE
done
sleep 600

213
check_dns_records/zabbix_create_host.sh 100755
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@ -0,0 +1,213 @@
#!/bin/bash
###################################################################
#
# Скрипт для работы с Zabbix Rest API
# Позволяет создавать группу узлов, шаблон, узел.
# Создан по мотивам
# https://www.reddit.com/r/zabbix/comments/bhdhgq/zabbix_api_example_using_just_bash_curl_and_jq/
#
# Автор: Сергей Калинин
# https://nuk-svk.ru
# svk@nuk-svk.ru
#####################################################################
#
# Использование:
# ./zabbix_create_host.sh
#
# Запуск без параметров создаст группу узлов, шаблон и узел если они
# отсутствуют. Данные берутся из переменных окружения
#####################################################################
#####################################################################
# Custom variables
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
LIB_DIR=${LIB_DIR:-/usr/local/lib}
zabbixServer=${ZABBIX_SERVER:-'http://zabbix.example.com'}
zabbixUsername=${ZABBIX_USER}
zabbixPassword=${ZABBIX_PASSWORD}
zabbixHostGroup=${ZABBIX_HOST_GROUP:-'Virtual Hosts'}
ZABBIX_HOST_NAME=${ZABBIX_HOST:-"DNS records check"}
ZABBIX_TEMPLATE_NAME=${ZABBIX_TEMPLATE_NAME:-"Template_DNS_Check"}
#End of custom variables
#####################################################################
header='Content-Type:application/json'
zabbixApiUrl="$zabbixServer/api_jsonrpc.php"
function exit_with_error() {
echo '********************************'
echo "$errorMessage"
echo '--------------------------------'
echo 'INPUT'
echo '--------------------------------'
echo "$json"
echo '--------------------------------'
echo 'OUTPUT'
echo '--------------------------------'
echo "$result"
echo '********************************'
exit 1
}
#####################################################################
# Auth to zabbix
# https://www.zabbix.com/documentation/3.4/manual/api/reference/user/login
function auth() {
errorMessage='*ERROR* - Unable to get Zabbix authorization token'
json=$(cat ${LIB_DIR}/user.login.json)
json=${json/USER/$zabbixUsername}
json=${json/PASSWORD/$zabbixPassword}
#echo $json
result=$(curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl)
auth=$(echo $result | jq '.result')
echo "Auth: $auth"
if [ -z "$auth" ]; then
exit_with_error
fi
echo "Login successful - Auth ID: $auth"
}
#####################################################################
# Create hostgroup
function create_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to create hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.create.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .groupids | .[0]'`
if [ "$HOSTGROUP_ID" == "null" ]; then
exit_with_error
fi
echo "Hostgroup '$zabbixHostGroup' was created with ID: $HOSTGROUP_ID"
}
#####################################################################
# Get hostgroup
function get_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.get.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .[0] | .groupid'`
if [ "$HOSTGROUP_ID" == "null" ]; then
create_host_group
fi
echo "Hostgroup ID for '$zabbixHostGroup': $HOSTGROUP_ID"
}
#####################################################################
# Create template
function create_template(){
if [ -z "$auth" ]; then
auth
fi
echo "Creating zabbix template '$ZABBIX_TEMPLATE_NAME'"
errorMessage="*ERROR* - Unable to create Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.create.json`
TEMPLATE_XML=$(cat ${LIB_DIR}/$ZABBIX_TEMPLATE_NAME.xml)
TEMPLATE_XML="$(echo $TEMPLATE_XML | sed 's/"/\\"/g')"
json=${json/XMLSTRING/$TEMPLATE_XML}
json=${json/AUTHID/$auth}
#echo $json
#echo "curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl"
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
#exit
#RESULT=`echo $result | jq -r '.result'`
if [ "$RESULT" == "null" ]; then
exit_with_error
else
get_template
#echo "Template '$ZABBIX_TEMPLATE_NAME' was created with ID: $TEMPLATE_ID"
fi
}
#####################################################################
# Get template
function get_template(){
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.get.json`
json=${json/TEMPLATE_NAME/$ZABBIX_TEMPLATE_NAME}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
TEMPLATE_ID=`echo $result | jq -r '.result | .[0] | .templateid'`
if [ "$TEMPLATE_ID" == "null" ]; then
create_template
fi
echo "Template ID for '$ZABBIX_TEMPLATE_NAME': $TEMPLATE_ID"
}
#####################################################################
# Get host
function get_host() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get host ID for host '$zabbixHost'"
json=`cat ${LIB_DIR}/host.get.json`
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
hostId=`echo $result | jq -r '.result | .[0] | .hostid'`
# if [ "$hostId" == "null" ]; then exit_with_error; fi
# echo "Host ID for '$zabbixHost': $hostId"
if [ "$hostId" == "null" ]; then
create_host
#exit_with_error
else
echo "Host ID for '$zabbixHost': $hostId"
fi
}
#####################################################################
# Create host
function create_host() {
if [ -z "$auth" ]; then
auth
fi
if [ -z "$TEMPLATE_ID" ]; then
get_template
fi
if [ -z "$HOSTGROUP_ID" ]; then
get_host_group
fi
echo "Create host \"$ZABBIX_HOST_NAME\""
errorMessage="*ERROR* - Host '$zabbixHost' does not created"
json=$(cat ${LIB_DIR}/host.create.json)
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/HOSTGROUPID/$HOSTGROUP_ID}
json=${json/TEMPLATE_ID/$TEMPLATE_ID}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
HOST_ID=`echo $result | jq -r '.result | .hostids | .[0]'`
if [ -z "$HOST_ID" ]; then
exit_with_error
else
echo "Host \"${ZABBIX_HOST_NAME}\" was created with id $HOST_ID"
fi
}
get_host

134
check_dns_records/zabbix_dns_records_check.sh 100755
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@ -0,0 +1,134 @@
#!/bin/bash
##############################################################################
#
# Определение корректности записей в DNS
# для доменов для Zabbix
# Может работать как с zabbix-agent так и zabbix-sender
#
# Автор: Сергей Калинин
# https://nuk-svk.ru
# svk@nuk-svk.ru
##############################################################################
#
# Использование:
#
# Получение DNS записей доменов и создание JSON-файла для Zabbix:
# zabbix_zimbra_domain_status.sh discover
#
# Чтение JSON-файла и вывод на экран (в zabbix)
# zabbix_zimbra_domain_status.sh read-json-discover
#
# Получение всех записей для домена из DNS
# zabbix_zimbra_domain_status.sh get-domain-records _DOMAIN_NAME_
#
# Получение всех типов записей для домена из DNS
# zabbix_zimbra_domain_status.sh get-domain-records-type _DOMAIN_NAME_
#
# Получение ДНС записи определенного типа для домена
# zabbix_zimbra_domain_status.sh _ZIMBRA_DOMAIN_NAME_ _DNS_RECORD_TYPE_
#
# Где
# _DOMAIN_NAME_ - имя домена в DNS
# _DNS_RECORD_TYPE_ - тип DNS-записи (A, CNAME, TXT, MX, и т.д.)
#############################################################################
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
EXT_DNS=${EXT_DNS:-8.8.8.8}
DOMAIN_LIST=${DOMAIN_LIST:-"example1.com example1.org example3.ru"}
FILE_ZIMBRA_DOMAIN_STATUS='/tmp/domain_status'
FILE_ZIMBRA_DOMAIN_LIST='/tmp/domain_list'
ZABBIX_AGENT=${ZABBIX_AGENT:-FALSE}
ZABBIX_SENDER=${ZABBIX_SENDER:-/usr/bin/zabbix_sender}
ZABBIX_AGENT_CONFIG=${ZABBIX_AGNT_CONFIG:-/etc/zabbix/zabbix_agentd.conf}
ZABBIX_HOST="${ZABBIX_HOST:-DNS records check}"
case "$1" in
discover)
# Return a list of running services in JSON
# And create JSON-file
DOMAIN_JSON="{\"data\":["
for LINE in ${DOMAIN_LIST}; do
RECORDS_TYPE=$($0 get-domain-records-type ${LINE})
DOMAIN_JSON="${DOMAIN_JSON}"
for TYPE in ${RECORDS_TYPE}; do
DOMAIN_JSON="${DOMAIN_JSON} {\"{#DOMAIN}\":\"$LINE\", \"{#DOMAINDNSRECORD}\":\"$TYPE\"},"
done
DOMAIN_JSON="${DOMAIN_JSON}"
done
JSON_STRING="$(echo $DOMAIN_JSON | sed 's/,\+$//') ]}"
echo "${JSON_STRING}" > ${FILE_ZIMBRA_DOMAIN_LIST}.json
if [ "$ZABBIX_AGENT" = "FALSE" ]; then
$ZABBIX_SENDER -vv -c $ZABBIX_AGENT_CONFIG -s "$ZABBIX_HOST" -k domain -o "${JSON_STRING}"
fi
exit 0;
;;
read-json-discover)
# create a JSON-file for zabbix
$0 discover
# Read a JSON and return
if [ ! -f ${FILE_ZIMBRA_DOMAIN_LIST}.json ]; then
echo "File ${FILE_ZIMBRA_DOMAIN_LIST}.json not found"
exit 1
fi
while read LINE; do
echo ${LINE}
done < "${FILE_ZIMBRA_DOMAIN_LIST}.json"
;;
get-domain-records)
if [ "$2" = "" ]; then
echo "No Zimbra DOMAIN specified..."
exit 1
fi
dig @${EXT_DNS} +nocmd $2 any +noall +answer > ${FILE_ZIMBRA_DOMAIN_STATUS}
;;
get-domain-records-type)
if [ "$2" = "" ]; then
echo "No DOMAIN specified..."
exit 1
fi
$0 get-domain-records $2
cat ${FILE_ZIMBRA_DOMAIN_STATUS} | awk '{print $4}' | sort -u
;;
*)
CHECK_DOMAIN=$1
if [ "$CHECK_DOMAIN" = "" ]; then
echo "No DOMAIN specified..."
exit 1
fi
# Формируем список всех DNS-записей для домена
#dig @${EXT_DNS} +nocmd ${CHECK_DOMAIN} any +noall +answer > ${FILE_ZIMBRA_DOMAIN_STATUS}
$0 get-domain-records "${CHECK_DOMAIN}"
if [ "$ZABBIX_AGENT" = "TRUE" ]; then
# получаем данные по конкретному типу записи
# использвется при работе через zabbix-agent
RECORD_TYPE=$2
if [ "$RECORD_TYPE" = "" ]; then
echo "No DNS record type specified..."
exit 1
fi
grep -E "\s${RECORD_TYPE}\s" ${FILE_ZIMBRA_DOMAIN_STATUS} | awk '{ for(i=5; i<=NF; ++i) printf $i""FS; print "" }' | sort
else
# Формируем список типов записей для домена
#RECORD_TYPES_LIST=$(cat ${FILE_ZIMBRA_DOMAIN_STATUS} | awk '{print $4}' | sort -u)
RECORD_TYPES_LIST=$($0 get-domain-records-type "${CHECK_DOMAIN}")
for RECORD_TYPE in ${RECORD_TYPES_LIST}; do
# Запрос в DNS
#dig @${EXT_DNS} +nocmd ${RECORD_TYPE} ${CHECK_DOMAIN} +noall +answer | awk '{ for(i=5; i<=NF; ++i) printf $i""FS; print "" }' | sort
# Читаем из файла с ранее полученными данными и шлем в заббикс
#grep ${RECORD_TYPE} ${FILE_ZIMBRA_DOMAIN_STATUS} | awk '{ for(i=5; i<=NF; ++i) printf $i""FS; print "" }' | sort
$ZABBIX_SENDER -c $ZABBIX_AGENT_CONFIG -s "$ZABBIX_HOST" -k "domain.status[${CHECK_DOMAIN}, ${RECORD_TYPE}]" \
-o "$(grep -E "\s${RECORD_TYPE}\s" ${FILE_ZIMBRA_DOMAIN_STATUS} | awk '{ for(i=5; i<=NF; ++i) printf $i""FS; print "" }' | sort)"
done
fi
;;
esac
exit 0;

29
check_dns_records/zabbix_jrpc_files/host.create.json 100755
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@ -0,0 +1,29 @@
{
"jsonrpc": "2.0",
"method": "host.create",
"params": {
"host": "HOSTNAME",
"interfaces": [
{
"type": 1,
"main": 1,
"useip": 1,
"ip": "127.0.0.1",
"dns": "",
"port": "10050"
}
],
"groups": [
{
"groupid": "HOSTGROUPID"
}
],
"templates": [
{
"templateid": "TEMPLATE_ID"
}
]
},
"auth": AUTHID,
"id": 1
}

9
check_dns_records/zabbix_jrpc_files/host.exists.json 100755
View File

@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "host.exists",
"params": {
"host": "HOSTNAME"
},
"auth": AUTHID,
"id": 1
}

13
check_dns_records/zabbix_jrpc_files/host.get.json 100755
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@ -0,0 +1,13 @@
{
"jsonrpc": "2.0",
"method": "host.get",
"params": {
"filter": {
"host": [
"HOSTNAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
check_dns_records/zabbix_jrpc_files/hostgroup.create.json 100755
View File

@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.create",
"params": {
"name": "HOSTGROUP"
},
"auth": AUTHID,
"id": 1
}

15
check_dns_records/zabbix_jrpc_files/hostgroup.get.json 100755
View File

@ -0,0 +1,15 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.get",
"params": {
"output": "groupid",
"filter": {
"name": [
"HOSTGROUP"
]
}
},
"auth": AUTHID,
"id": 1
}

30
check_dns_records/zabbix_jrpc_files/template.create.json 100755
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@ -0,0 +1,30 @@
{
"jsonrpc": "2.0",
"method": "configuration.import",
"params": {
"format": "xml",
"rules": {
"templates": {
"createMissing": true
},
"items": {
"createMissing": true
},
"discoveryRules": {
"createMissing": true
},
"triggers": {
"createMissing": true
},
"graphs": {
"createMissing": true
},
"applications": {
"createMissing": true
}
},
"source": "XMLSTRING"
},
"auth": AUTHID,
"id": 1
}

14
check_dns_records/zabbix_jrpc_files/template.get.json 100755
View File

@ -0,0 +1,14 @@
{
"jsonrpc": "2.0",
"method": "template.get",
"params": {
"output": "extend",
"filter": {
"host": [
"TEMPLATE_NAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
check_dns_records/zabbix_jrpc_files/user.login.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "user.login",
"params": {
"user": "USER",
"password": "PASSWORD"
},
"id": 1
}

182
check_dns_records/zabbix_templates/Template_DNS_Check.xml 100755
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@ -0,0 +1,182 @@
<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
<version>4.0</version>
<date>2020-10-09T07:22:33Z</date>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<templates>
<template>
<template>Template_DNS_Check</template>
<name>Template_DNS_Check</name>
<description/>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<applications>
<application>
<name>Domain DNS Records</name>
</application>
</applications>
<items/>
<discovery_rules>
<discovery_rule>
<name>Domain Discovery</name>
<type>2</type>
<snmp_community/>
<snmp_oid/>
<key>domain</key>
<delay>0</delay>
<status>0</status>
<allowed_hosts/>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<params/>
<ipmi_sensor/>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<filter>
<evaltype>0</evaltype>
<formula/>
<conditions/>
</filter>
<lifetime>30d</lifetime>
<description/>
<item_prototypes>
<item_prototype>
<name>&quot;{#DOMAINDNSRECORD}&quot; record for &quot;{#DOMAIN}&quot;</name>
<type>2</type>
<snmp_community/>
<snmp_oid/>
<key>domain.status[{#DOMAIN}, {#DOMAINDNSRECORD}]</key>
<delay>0</delay>
<history>90d</history>
<trends>0</trends>
<status>0</status>
<value_type>4</value_type>
<allowed_hosts/>
<units/>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<params/>
<ipmi_sensor/>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>Domain DNS Records</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<preprocessing/>
<jmx_endpoint/>
<timeout>3s</timeout>
<url/>
<query_fields/>
<posts/>
<status_codes>200</status_codes>
<follow_redirects>1</follow_redirects>
<post_type>0</post_type>
<http_proxy/>
<headers/>
<retrieve_mode>0</retrieve_mode>
<request_method>0</request_method>
<output_format>0</output_format>
<allow_traps>0</allow_traps>
<ssl_cert_file/>
<ssl_key_file/>
<ssl_key_password/>
<verify_peer>0</verify_peer>
<verify_host>0</verify_host>
<application_prototypes/>
<master_item/>
</item_prototype>
</item_prototypes>
<trigger_prototypes>
<trigger_prototype>
<expression>{Template_DNS_Check:domain.status[{#DOMAIN}, {#DOMAINDNSRECORD}].nodata(20m)}=1</expression>
<recovery_mode>0</recovery_mode>
<recovery_expression/>
<name>{HOSTNAME}. Нет данных о проверке DNS зон</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>3</priority>
<description/>
<type>0</type>
<manual_close>0</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
<trigger_prototype>
<expression>{Template_DNS_Check:domain.status[{#DOMAIN}, {#DOMAINDNSRECORD}].diff()}=1</expression>
<recovery_mode>2</recovery_mode>
<recovery_expression/>
<name>Изменение {#DOMAINDNSRECORD}-записи для &quot;{#DOMAIN}</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>2</priority>
<description/>
<type>0</type>
<manual_close>1</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
</trigger_prototypes>
<graph_prototypes/>
<host_prototypes/>
<jmx_endpoint/>
<timeout>3s</timeout>
<url/>
<query_fields/>
<posts/>
<status_codes>200</status_codes>
<follow_redirects>1</follow_redirects>
<post_type>0</post_type>
<http_proxy/>
<headers/>
<retrieve_mode>0</retrieve_mode>
<request_method>0</request_method>
<allow_traps>0</allow_traps>
<ssl_cert_file/>
<ssl_key_file/>
<ssl_key_password/>
<verify_peer>0</verify_peer>
<verify_host>0</verify_host>
</discovery_rule>
</discovery_rules>
<httptests/>
<macros/>
<templates/>
<screens/>
</template>
</templates>
</zabbix_export>

59
check_email_delivery/.gitlab-ci.yml 100644
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@ -0,0 +1,59 @@
stages:
- build
- release
- deploy
variables:
# CONTAINER_TEST_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
# CONTAINER_RELEASE_IMAGE: $CI_REGISTRY_IMAGE:latest
DOCKER_DRIVER: overlay2
IMAGE_PATH: $CI_REGISTRY/$CI_PROJECT_PATH
before_script:
- docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
- mkdir -p .ci_status
.dedicated-runner: &dedicated-runner
tags:
- build1-shell
email_check_build:
<<: *dedicated-runner
stage: build
script:
- DOCKER_BUILDKIT=1 COMPOSE_DOCKER_CLI_BUILD=1 docker-compose build email_delivery_check_mail
- docker push $IMAGE_PATH/email_delivery_check:dev
- touch .ci_status/email_check_build
only:
refs:
- master
changes:
- check_email_delivery-0.7.1b/*
- ./*/*.json
- ./*/*.xml
- Dockerfile
- *.sh
- docker-compose.yml
artifacts:
paths:
- .ci_status/
email_check_release:
<<: *dedicated-runner
stage: release
script:
- if [ -e .ci_status/email_check_build ]; then docker pull $IMAGE_PATH/email_delivery_check:dev; docker tag $IMAGE_PATH/email_delivery_check:dev $IMAGE_PATH/email_delivery_check:latest; docker push $IMAGE_PATH/email_delivery_check:latest; touch .ci_status/email_check_release; fi
artifacts:
paths:
- .ci_status/
email_check_deploy:
<<: *dedicated-runner
stage: deploy
script:
- if [ -e .ci_status/email_check_release ]; then docker-compose up -d --no-deps --build email_delivery_check_mail; docker-compose up -d --no-deps --build email_delivery_check_mail2; fi

27
check_email_delivery/Dockerfile 100755
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@ -0,0 +1,27 @@
FROM debian:buster-slim
RUN apt-get update; apt-get install -y libnet-imap-client-perl libnet-imap-perl \
libcrypt-openssl-bignum-perl libcrypt-openssl-dsa-perl libcrypt-openssl-ec-perl \
libcrypt-openssl-pkcs10-perl libcrypt-openssl-pkcs12-perl libcrypt-openssl-random-perl \
libcrypt-openssl-rsa-perl libnet-smtp-ssl-perl libnet-smtp-tls-perl libnet-smtps-perl \
libnet-imap-client-perl zabbix-agent libmail-imapclient-perl curl jq && \
rm -rf /var/lib/apt/lists/*
COPY ./check_email_delivery-0.7.1b/check_* /usr/local/bin/
COPY ./check_email_delivery-0.7.1b/imap_* /usr/local/bin/
COPY check_email_send_delivery.sh /usr/local/bin/check_email_send_delivery.sh
COPY zabbix_create_host.sh /usr/local/bin/zabbix_create_host.sh
COPY run.sh /usr/local/bin/run.sh
ADD zabbix_jrpc_files/* /usr/local/lib/
COPY zabbix_templates/* /usr/local/lib/
RUN chmod 755 /usr/local/bin/*
RUN export RUNNING_ON_DOCKER='TRUE'
RUN sed -i -e 's/^Server=127.0.0.1$/Server=${ZABBIX_SERVER}/' /etc/zabbix/zabbix_agentd.conf; \
sed -i -e 's/^ServerActive=127.0.0.1$/ServerActive=${ZABBIX_SERVER}/' /etc/zabbix/zabbix_agentd.conf
CMD /usr/local/bin/run.sh

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# Проверка прохождения почтовых сообщений
Набор скриптов для проведения проверок прохождения почтовых сообщений на/с почтовые сервера при помощи zabbix.
За основу взяты скрипты от nagios http://nagiosplugins.org/
Сервис можно запускать как локально по времени (cron-ом) так и в docker-контейнерах. В данном примере все конфиги представлены для запуска проверки на двух почтовых серверах.
## Описание
Для запуска проверки прохождения почты нужно запустить файл ```check_email_send_delivery.sh```
Формат команды запуска
```
check_email_send_delivery.sh METHOD MAIL_SERVER
```
Где METHOD - это тип проверки, должен быть:
* "local" - локальная проверка (внутри сети)
* "incoming" - проверка прохождения входящей почты (отправка извне)
* "outgoing" - проверка прохождения исходящей почты (отправка изнутри наружу)
MAIL_SERVER - FQDN имя почтового сервера
## Использование
Скрипт можно запускать как по времени так и ввиде docker-контейнера
### Настройка переменных окружения
Настройки для каждого почтового сервера заданы в отдельных файлах (формат имени ".FQDN.env"):
```
.mail2.exampla.com.env
.mail1.example.com.env
```
Соответствующий файл будет загружен при запуске скрипта.
### Запуск по времени
Предварительно требуется скопировать рабочие файлы, файлы настроек серверов cron-a и настроить узлы в zabbix (можно применить скрипт zabbix_create_host.sh) Для этого можно выполнить следующие команды:
```
cp check_email_send_delivery.sh /usr/local/bin/
cp check_email_delivery-0.7.1b/check_* /usr/local/bin/
cp check_email_delivery-0.7.1b/imap_* /usr/local/bin/
cp email_delivery_check.cron /etc/cron.d/email_delivery_check
cp sample.env /usr/local/etc/.mail1.example.com.env
cp sample.env /usr/local/etc/.mail2.example.com.env
source /usr/local/etc/.mail1.example.com.env
./zabbix_create_host.sh
source /usr/local/etc/.mail2.example.com.env
./zabbix_create_host.sh
```
Файлы настроек "sample.env" правятся соответсвенно проверямемым серверам. Затем перезапускаем службу crond
```systemctl restart crond```
### Запуск в Docker-контейнере
Предварительно требуется скопировать файл примерных настроек и отредактировать, согласно Вашим требованиям (FQDN полное имя вашего почтового сервера такое-же как и в docker-compose.yml)
```cp sample.env .FQDN.env```
При первом запуске контейнеров будут созданы узлы в заббикс и подключены шаблоны, при повторных запусках добавятся обнаруженные элементы данных. Это связанно с особенностями работы заббикса (временной промежуток). Данные будут поступать после 2-3 запуска контейнера.
Контейнеры запускаются автоматически раз в 5 (Check_email_delivery) минут. Настройки производятся через переменные окружения.
Перед запуском следует установить данные переменные (остальные можно оставить по умолчанию, полный список см. в docker-compose.yml):
Пользователь заббикс:
- ZABBIX_USER=
- ZABBIX_PASSWORD=
- ZABBIX_TEMPLATE_NAME=Template_Email_Delivery_Check
Почтовые аккаунты (для двух MTA используются разные ящики из-за ограничения гугла на количество сообщений в сутки):
- SENDER_EMAIL=delivery_speed@example.com
- SENDER_PASSWORD=
- RECEIVER_EMAIL=delivery_speed_local@example.com
- RECEIVER_PASSWOR=
- EXT_SENDER_EMAIL=external@gmail.com
- EXT_SENDER_PASSWORD=
- EXT_RECEIVER_EMAIL=external@gmail.com
- EXT_RECEIVER_PASSWORD=
- EXT_SENDER_EMAIL_2=external2@gmail.com
- EXT_RECEIVER_EMAIL_2=external2@gmail.com
Сборка контейнера в локальном репозитории:
```docker build --rm -t email_delivery_check .```
Проверка для каждого сервера запускается в отдельном контейнере. Запуск осуществляется при помощи docker-compose:
```docker-compose up -d```

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2005-11-10
* published
2005-05-10
* received patches from Johan Nilsson <johann (at) axis.com>
2006-07-20
* received patches from Geoff Crompton <geoff.crompton@strategicdata.com.au>
2007-04-24
* packaged ePN version of the plugins -- the __END__ block for embedded documentation was causing an error because of the way ePN wraps the perl scripts. see http://nagios.sourceforge.net/docs/2_0/embeddedperl.html
* added SSL support using patch from Benjamin Ritcey <ben@ritcey.com>
2007-10-21
* added TLS support for SMTP using Net::SMTP::TLS
* added SSL support for SMTP using Net::SMTP::SSL, but NOTE that I don't have access to an SMTPS server so I cannot test this.
2007-12-04
* small fix with SSL support for IMAP related to bugfix in Mail::IMAPClient 3.00 over 2.2.9 thanks to Seth P. Low <low@modog.com>
* added --usage option to all three plugins for familiarity with the official nagios plugins

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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
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might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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This file was updated on Sun Oct 21 21:32:12 PDT 2007.
Developer guidelines:
http://nagiosplug.sourceforge.net/developer-guidelines.html
Nagios Plugins:
http://nagiosplugins.org/
Nagios: http://nagios.org and http://nagiosplug.sourceforge.net
Perl library: http://search.cpan.org/dist/Nagios-Plugin/lib/Nagios/Plugin.pm
The email delivery plugin I wrote uses two other plugins
(smtp send and imap receive), also included, to send a message
to an email account and then check that account for the message
and delete it. The plugin times how long it takes for the
message to be delivered and the warning and critical thresholds
are for this elapsed time.
A few notes:
1. I tried to use the check_smtp plugin for sending mail. I
can do it on the command line but I can't get the newlines to
happen from the nagios config file (\n doesn't seem to work so smtp
server waits for the '.' but doesn't get it like it does when I
use single quote and newlines from the command line). So if
you know how to get the check_smtp plugin to send a message from
the nagios config, that one could be used instead of the
check_smtp_send plugin included here (and please let me know)
2. I looked at check_mail.pl by bledi51 and its pretty good,
and also conforms better to nagios perl plugin guidelnes than
mine does. So I'm going to be revising my plugins to conform
more.
Finally, usage example from my own nagios config:
define command{
command_name check_email_delivery
command_line $USER1$/check_email_delivery -H $HOSTADDRESS$ --mailfrom $ARG3$ --mailto $ARG4$ --username $ARG5$ --password $ARG6$ --libexec $USER1$ -w $ARG1$ -c $ARG2$
}
define service{
use generic-service
host_name mail.your.net
service_description EMAIL DELIVERY
check_command check_email_delivery!5!120!sender@your.net!recipient@your.net!recipient@your.net!password
}
A new usage example equivalent to the old one but using the new --plugins and --token options:
define command{
command_name check_email_delivery
command_line $USER1$/check_email_delivery -p '$USER1$/check_smtp_send -H $HOSTADDRESS$ --mailfrom $ARG3$ --mailto $ARG4$ -U $ARG5$ -P $ARG6$ --subject "Nagios %TOKEN1%" -w $ARG1$ -c $ARG2$' -p '$USER1$/check_imap_receive -H $HOSTADDRESS$ -U $ARG5$ -P $ARG6$ -s SUBJECT -s "Nagios %TOKEN1%" -w $ARG1$ -c $ARG2$' -w $ARG1$,$ARG1$ -c $ARG2$,$ARG2$
}
define service{
use generic-service
host_name mail.your.net
service_description EMAIL DELIVERY
check_command check_email_delivery!5!120!sender@your.net!recipient@your.net!recipient@your.net!password
}
References to similar plugins:
pop3(s) email matching plugin by kkvenkit
check_mail.pl by bledi51
check_email_loop.pl by ryanwilliams
check_pop.pl and check_imap.pl by http://www.jhweiss.de/software/nagios.html

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#!/usr/bin/perl
use strict;
my $VERSION = '0.7.1';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $host = "";
my $smtp_server = "";
my $smtp_port = "";
my $imap_server = "";
my $smtp_username = "";
my $smtp_password = "";
my $smtp_tls = "";
my $imap_port = "";
my $imap_username = "";
my $imap_password = "";
my $imap_mailbox = "";
my $username = "";
my $password = "";
my $ssl = "";
my $imap_ssl = "";
my $mailto = "";
my $mailfrom = "";
my @header = ();
my $body = "";
my $warnstr = "";
my $critstr = "";
my $waitstr = "";
my $delay_warn = 95;
my $delay_crit = 300;
my $smtp_warn = 15;
my $smtp_crit = 30;
my $imap_warn = 15;
my $imap_crit = 30;
my $timeout = "";
my @alert_plugins = ();
my $imap_interval = 5;
my $imap_retries = 5;
my @plugins = ();
my @token_formats = ();
my $tokenfile = "";
my $default_crit = 30;
my $default_warn = 15;
my $default_wait = 5;
my $default_timeout = 60;
my $time_hires = "";
my $libexec = "/usr/local/nagios/libexec";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=s"=>\$warnstr,"c|critical=s"=>\$critstr, "t|timeout=s"=>\$timeout,
"libexec=s"=>\$libexec,
# plugin settings
"p|plugin=s"=>\@plugins, "T|token=s"=>\@token_formats,
"A|alert=i"=>\@alert_plugins,
"F|file=s"=>\$tokenfile,
# common settings
"H|hostname=s"=>\$host,
"U|username=s"=>\$username,"P|password=s"=>\$password,
"ssl!"=>\$ssl,
# smtp settings
"smtp-server=s"=>\$smtp_server,"smtp-port=i"=>\$smtp_port,
"mailto=s"=>\$mailto, "mailfrom=s",\$mailfrom,
"header=s"=>\@header, "body=s"=>\$body,
# smtp-tls settings
"smtptls!"=>\$smtp_tls,
"smtp-username=s"=>\$smtp_username,"smtp-password=s"=>\$smtp_password,
# delay settings
"wait=s"=>\$waitstr,
# imap settings
"imap-server=s"=>\$imap_server,"imap-port=i"=>\$imap_port,
"imap-username=s"=>\$imap_username,"imap-password=s"=>\$imap_password,
"imap-mailbox=s"=>\$imap_mailbox,
"imap-check-interval=i"=>\$imap_interval,"imap-retries=i"=>\$imap_retries,
"imapssl!"=>\$imap_ssl,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Warning threshold: $delay_warn seconds\n";
print "Critical threshold: $delay_crit seconds\n";
print "Default wait: $default_wait seconds\n";
print "Default timeout: $default_timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $host ) {
$smtp_server = $host if $smtp_server eq "";
$imap_server = $host if $imap_server eq "";
}
if( $username ) {
$smtp_username = $username if $smtp_username eq "";
$imap_username = $username if $imap_username eq "";
}
if( $password ) {
$smtp_password = $password if $smtp_password eq "";
$imap_password = $password if $imap_password eq "";
}
if( $ssl ) {
$imap_ssl = $ssl if $imap_ssl eq "";
$smtp_tls = $ssl if $smtp_tls eq "";
}
if( $help_usage
||
(
scalar(@plugins) == 0
&&
(
$smtp_server eq "" || $mailto eq "" || $mailfrom eq ""
|| $imap_server eq "" || $username eq "" || $password eq ""
)
)
) {
print "Usage 1: $0 -H host \n\t".
"--mailto recipient\@your.net --mailfrom sender\@your.net --body 'message' \n\t".
"--username username --password password \n\t".
"[-w <seconds>] [-c <seconds>]\n\t" .
"[--imap-check-interval <seconds> ] [--imap-retries <times> ]\n";
print "Usage 2: $0 \n\t".
"-p 'first plugin command with %TOKEN1% embedded' \n\t".
"-p 'second plugin command with %TOKEN1% embedded' \n\t".
"[-w <seconds1>,<seconds2>] [-c <seconds1>,<seconds2>] \n";
exit $status{UNKNOWN};
}
# determine thresholds
my @warning_times = split(",", $warnstr);
my @critical_times = split(",", $critstr);
my @alarm_times = split(",", $timeout);
my @wait_times = split(",", $waitstr);
my ($dw,$sw,$rw) = split(",", $warnstr);
my ($dc,$sc,$rc) = split(",", $critstr);
my ($wait) = split(",", $waitstr);
$delay_warn = $dw if defined $dw and $dw ne "";
$smtp_warn = $sw if defined $sw and $sw ne "";
$imap_warn = $rw if defined $rw and $rw ne "";
$delay_crit = $dc if defined $dc and $dc ne "";
$smtp_crit = $sc if defined $sc and $sc ne "";
$imap_crit = $rc if defined $rc and $rc ne "";
my $smtp_thresholds = "";
$smtp_thresholds .= "-w $smtp_warn " if defined $smtp_warn and $smtp_warn ne "";
$smtp_thresholds .= "-c $smtp_crit " if defined $smtp_crit and $smtp_crit ne "";
my $imap_thresholds = "";
$imap_thresholds .= "-w $imap_warn " if defined $imap_warn and $imap_warn ne "";
$imap_thresholds .= "-c $imap_crit " if defined $imap_crit and $imap_crit ne "";
$imap_thresholds .= "--imap-check-interval $imap_interval " if defined $imap_interval and $imap_interval ne "";
$imap_thresholds .= "--imap-retries $imap_retries " if defined $imap_retries and $imap_retries ne "";
if( scalar(@alarm_times) == 1 ) {
$default_timeout = shift(@alarm_times);
}
# determine which other options to include
my $smtp_options = "";
$smtp_options .= "-H $smtp_server " if defined $smtp_server and $smtp_server ne "";
$smtp_options .= "-p $smtp_port " if defined $smtp_port and $smtp_port ne "";
$smtp_options .= "--tls " if defined $smtp_tls and $smtp_tls;
$smtp_options .= "-U ".shellquote($smtp_username)." " if defined $smtp_username and $smtp_username ne "";
$smtp_options .= "-P ".shellquote($smtp_password)." " if defined $smtp_password and $smtp_password ne "";
$smtp_options .= "--mailto ".shellquote($mailto)." " if defined $mailto and $mailto ne "";
$smtp_options .= "--mailfrom ".shellquote($mailfrom)." " if defined $mailfrom and $mailfrom ne "";
foreach my $h( @header ) {
$smtp_options .= "--header ".shellquote($h)." ";
}
my $imap_options = "";
$imap_options .= "-H $imap_server " if defined $imap_server and $imap_server ne "";
$imap_options .= "-p $imap_port " if defined $imap_port and $imap_port ne "";
$imap_options .= "-U ".shellquote($imap_username)." " if defined $imap_username and $imap_username ne "";
$imap_options .= "-P ".shellquote($imap_password)." " if defined $imap_password and $imap_password ne "";
$imap_options .= "--mailbox ".shellquote($imap_mailbox)." " if defined $imap_mailbox and $imap_mailbox ne "";
$imap_options .= "--ssl " if defined $imap_ssl and $imap_ssl;
# create the report object
my $report = new PluginReport;
my @report_plugins = (); # populated later with either (smtp,imap) or (plugin1,plugin2,...)
my $time_start; # initialized later with time the work actually starts
# create token formats for use with the plugins
my @alpha = qw/a b c d e f g h i j k l m n o p q r s t u v w x y z/;
my @numeric = qw/0 1 2 3 4 5 6 7 8 9/;
my @hex = qw/0 1 2 3 4 5 6 7 8 9 a b c d e f/;
my @pgp_even = qw/aardvark absurd accrue acme adrift adult afflict ahead aimless Algol allow alone ammo ancient apple artist assume Athens atlas Aztec baboon backfield backward banjo beaming bedlamp beehive beeswax befriend Belfast berserk billiard bison blackjack blockade blowtorch bluebird bombast bookshelf brackish breadline breakup brickyard briefcase Burbank button buzzard cement chairlift chatter checkup chisel choking chopper Christmas clamshell classic classroom cleanup clockwork cobra commence concert cowbell crackdown cranky crowfoot crucial crumpled crusade cubic dashboard deadbolt deckhand dogsled dragnet drainage dreadful drifter dropper drumbeat drunken Dupont dwelling eating edict egghead eightball endorse endow enlist erase escape exceed eyeglass eyetooth facial fallout flagpole flatfoot flytrap fracture framework freedom frighten gazelle Geiger glitter glucose goggles goldfish gremlin guidance hamlet highchair hockey indoors indulge inverse involve island jawbone keyboard kickoff kiwi klaxon locale lockup merit minnow miser Mohawk mural music necklace Neptune newborn nightbird Oakland obtuse offload optic orca payday peachy pheasant physique playhouse Pluto preclude prefer preshrunk printer prowler pupil puppy python quadrant quiver quota ragtime ratchet rebirth reform regain reindeer rematch repay retouch revenge reward rhythm ribcage ringbolt robust rocker ruffled sailboat sawdust scallion scenic scorecard Scotland seabird select sentence shadow shamrock showgirl skullcap skydive slingshot slowdown snapline snapshot snowcap snowslide solo southward soybean spaniel spearhead spellbind spheroid spigot spindle spyglass stagehand stagnate stairway standard stapler steamship sterling stockman stopwatch stormy sugar surmount suspense sweatband swelter tactics talon tapeworm tempest tiger tissue tonic topmost tracker transit trauma treadmill Trojan trouble tumor tunnel tycoon uncut unearth unwind uproot upset upshot vapor village virus Vulcan waffle wallet watchword wayside willow woodlark Zulu/;
my @pgp_odd = qw/adroitness adviser aftermath aggregate alkali almighty amulet amusement antenna applicant Apollo armistice article asteroid Atlantic atmosphere autopsy Babylon backwater barbecue belowground bifocals bodyguard bookseller borderline bottomless Bradbury bravado Brazilian breakaway Burlington businessman butterfat Camelot candidate cannonball Capricorn caravan caretaker celebrate cellulose certify chambermaid Cherokee Chicago clergyman coherence combustion commando company component concurrent confidence conformist congregate consensus consulting corporate corrosion councilman crossover crucifix cumbersome customer Dakota decadence December decimal designing detector detergent determine dictator dinosaur direction disable disbelief disruptive distortion document embezzle enchanting enrollment enterprise equation equipment escapade Eskimo everyday examine existence exodus fascinate filament finicky forever fortitude frequency gadgetry Galveston getaway glossary gossamer graduate gravity guitarist hamburger Hamilton handiwork hazardous headwaters hemisphere hesitate hideaway holiness hurricane hydraulic impartial impetus inception indigo inertia infancy inferno informant insincere insurgent integrate intention inventive Istanbul Jamaica Jupiter leprosy letterhead liberty maritime matchmaker maverick Medusa megaton microscope microwave midsummer millionaire miracle misnomer molasses molecule Montana monument mosquito narrative nebula newsletter Norwegian October Ohio onlooker opulent Orlando outfielder Pacific pandemic Pandora paperweight paragon paragraph paramount passenger pedigree Pegasus penetrate perceptive performance pharmacy phonetic photograph pioneer pocketful politeness positive potato processor provincial proximate puberty publisher pyramid quantity racketeer rebellion recipe recover repellent replica reproduce resistor responsive retraction retrieval retrospect revenue revival revolver sandalwood sardonic Saturday savagery scavenger sensation sociable souvenir specialist speculate stethoscope stupendous supportive surrender suspicious sympathy tambourine telephone therapist tobacco tolerance tomorrow torpedo tradition travesty trombonist truncated typewriter ultimate undaunted underfoot unicorn unify universe unravel upcoming vacancy vagabond vertigo Virginia visitor vocalist voyager warranty Waterloo whimsical Wichita Wilmington Wyoming yesteryear Yucatan/;
my %formats = (
'a' => sub { pick_random(@alpha) },
'n' => sub { pick_random(@numeric) },
'c' => sub { pick_random(@alpha,@numeric) },
'h' => sub { pick_random(@hex) },
'U' => sub { time },
'X' => sub { pick_random(@pgp_even) },
'Y' => sub { pick_random(@pgp_odd) },
);
if( scalar(@plugins) ) {
# scan the plugin commands for use of tokens to count how many we need
my $token_count = 0;
foreach my $p (@plugins) {
my @matches = sort ($p =~ m/%TOKEN(\d+)%/g);
my $max = pop @matches;
$token_count = $max if defined($max) && $max > $token_count;
}
# create the tokens
my @tokens = ();
foreach my $t (1..$token_count) {
my $format = shift @token_formats;
$format = "U-X-Y" unless $format;
my @format_characters = split(//, $format);
my $token = "";
foreach my $c (@format_characters) {
if( defined $formats{$c} ) {
$token .= &{$formats{$c}};
}
else {
$token .= $c;
}
}
push @tokens, $token;
}
# substitute the tokens into each plugin command
foreach my $p (@plugins) {
foreach my $t (1..$token_count) {
my $token = $tokens[$t-1];
$p =~ s/%TOKEN$t%/$token/g;
}
}
# mark plugins that are allowed to generate alerts. default behavior is to alert for all plugins.
my %alert_plugins = ();
if( scalar(@alert_plugins) > 0 ) {
%alert_plugins = map { $_ => 1 } @alert_plugins;
}
else {
%alert_plugins = map { $_ => 1 } (1..scalar(@plugins));
}
# run each plugin and store its output in a report
$time_start = time;
my $i = 0;
foreach my $p( @plugins ) {
$i++;
my $plugin_timeout = shift(@alarm_times) || $default_timeout;
# run the plugin
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $plugin_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $plugin_timeout;
my $output = `$p`;
chomp $output;
if( $output !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - plugin $i error: $output\n";
print "Plugin $i: $p\n" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'UNKNOWN',$i,$output) if $tokenfile;
exit $status{UNKNOWN};
}
if( $output =~ m/CRITICAL/ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY CRITICAL - plugin $i failed: $output\n";
print "Plugin $i: $p" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'CRITICAL',$i,$output) if $tokenfile;
exit $status{CRITICAL};
}
if( $output =~ m/WARNING/ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY WARNING - plugin $i warning: $output\n";
print "Plugin $i: $p\n" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'WARNING',$i,$output) if $tokenfile;
exit $status{WARNING};
}
$report->{"plugin".$i} = $output;
alarm 0;
};
if( $@ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY CRITICAL - Could not run plugin $i: $@\n";
print "Plugin $i: $p\n" if $verbose;
exit $status{CRITICAL};
}
# if this wasn't the last plugin, wait before continuing
if( $i < scalar(@plugins) ) {
my $wait = shift(@wait_times) || $default_wait;
sleep $wait;
}
# compatibility with the "not using plugins" method... pretend to calculate the total round trip time (the delay) using data from the plugins ...
$report->{max} = 0;
$report->{delay} = 0;
}
# register the list of reports
foreach my $r ( 1..scalar(@plugins)) {
push @report_plugins, "plugin".$r;
}
# record tokens in a file if option is enabled
my $tmp_long_report = join(", ", map { "$_: $report->{$_}" } @report_plugins ) if $tokenfile;
record_tokens($tokenfile,\@tokens,$time_start,time,'OK',scalar(@plugins),$tmp_long_report) if $tokenfile;
}
else {
# not using plugins.
$time_start = time;
# send email via SMTP
my $id = $time_start; # XXX should include localhost name maybe or some random number in case the same mailbox is used for multiple delivery tests
my $smtp_plugin = "$libexec/check_smtp_send";
$smtp_plugin = "$libexec/check_smtp_send.pl" unless -e $smtp_plugin;
my $smtp_timeout = shift(@alarm_times) || $default_timeout;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $smtp_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $smtp_timeout;
my $smtp = `$smtp_plugin $smtp_options --header 'Subject: Nagios Message SMTP $smtp_server ID $id.' --body 'Nagios Email Delivery Plugin\n$body' $smtp_thresholds`;
if( $smtp !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - smtp unknown: $smtp\n";
exit $status{UNKNOWN};
}
if( $smtp =~ m/CRITICAL/ ) {
print "EMAIL DELIVERY CRITICAL - smtp failed: $smtp\n";
exit $status{CRITICAL};
}
chomp $smtp;
$report->{smtp} = $smtp;
alarm 0;
};
if( $@ ) {
print "EMAIL DELIVERY CRITICAL - Could not connect to SMTP server $smtp_server: $@\n";
exit $status{CRITICAL};
}
# wait before checking the delivery
$wait = shift(@wait_times) || $default_wait;
sleep $wait;
# check email via IMAP
my $imap_plugin = "$libexec/check_imap_receive";
$imap_plugin = "$libexec/check_imap_receive.pl" unless -e $imap_plugin;
my $imap_timeout = shift(@alarm_times) || $default_timeout;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $imap_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $imap_timeout;
my $imap = `$imap_plugin $imap_options -s SUBJECT -s 'Nagios Message SMTP $smtp_server ID' --capture-max 'Nagios Message SMTP $smtp_server ID (\\d+)' --nodelete-captured $imap_thresholds`;
if( $imap !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - imap unknown: $imap\n";
exit $status{UNKNOWN};
}
if( $imap =~ m/CRITICAL/ ) {
print "EMAIL DELIVERY CRITICAL - imap failed: $imap\n";
exit $status{CRITICAL};
}
if( $imap =~ m/ (\d+) max/ ) {
my $last_received = $1;
$report->{max} = $1;
my $delay = time - $last_received;
$report->{delay} = $delay;
}
chomp $imap;
$report->{imap} = $imap;
alarm 0;
};
if( $@ ) {
print "EMAIL DELIVERY CRITICAL - Could not connect to IMAP server $imap_server: $@\n";
exit $status{CRITICAL};
}
# register the list of reports
push @report_plugins, ("smtp","imap");
}
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
my @warning = ();
my @critical = ();
push @warning, "most recent received $report->{delay} seconds ago" if( defined($report->{delay}) && $report->{delay} > $delay_warn );
push @critical, "most recent received $report->{delay} seconds ago" if( defined($report->{delay}) && $report->{delay} > $delay_crit );
push @warning, "no emails found" if( !defined($report->{delay}) );
# print report and exit with known status
my $perf_data = "delay=".$report->{delay}."s;$delay_warn;$delay_crit;0 elapsed=".$report->{seconds}."s"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6
my $short_report = $report->text(qw/seconds delay/) . " | $perf_data";
my $long_report = join("", map { "$_: $report->{$_}\n" } @report_plugins );
if( scalar @critical ) {
my $alerts = join(", ", @critical);
print "EMAIL DELIVERY CRITICAL - $alerts; $short_report\n";
print $long_report if $verbose;
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $alerts = join(", ", @warning);
print "EMAIL DELIVERY WARNING - $alerts; $short_report\n";
print $long_report if $verbose;
exit $status{WARNING};
}
print "EMAIL DELIVERY OK - $short_report\n";
print $long_report if $verbose;
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# returns one random character from a set of characters
sub pick_random {
my @set = @_;
my $size = scalar @set;
my $string = $set[int(rand($size))];
return $string;
}
# appens tokens and times to a tab-separated value file
sub record_tokens {
my ($tokenfile,$tokens,$time_start,$time_end,$status,$plugin_num,$output) = @_;
if( $tokenfile ) {
my @tokens = @$tokens;
$time_end = "" unless defined $time_end;
$status = "" unless defined $status;
$plugin_num = "" unless defined $plugin_num;
$output = "" unless defined $output;
print "saving ".scalar(@tokens)." tokens into $tokenfile\n" if $verbose;
open(TOKENFILE,">>$tokenfile");
foreach(@tokens) {
print TOKENFILE "$_\t$time_start\t$time_end\t$status\t$plugin_num\t$output\n";
}
close(TOKENFILE);
}
}
# wraps argument in single-quotes and escapes any single-quotes in the argument
sub shellquote {
my $str = shift || "";
$str =~ s/\'/\'\\\'\'/g;
return "'$str'";
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package main;
1;
__END__
=pod
=head1 NAME
check_email_delivery - sends email and verifies delivery
=head1 SYNOPSIS
check_email_delivery -vV
check_email_delivery --usage
check_email_delivery --help
=head1 OPTIONS
=over
=item --warning <seconds>[,<smtp_seconds>,<imap_seconds>]
Exit with WARNING if the most recent email found is older than <seconds>. The
optional <smtp_seconds> and <imap_seconds> parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -w <seconds>[,<send>[,<recv>]]
When using the --plugin option, only one parameter is supported (-w <seconds>) and it will apply
to the entire process. You can specify a warning threshold specific to each plugin in the
plugin command line.
When using the --plugin option, no measuring of "most recent email" is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.
=item --critical <seconds>[,<smtp_seconds>,<imap_seconds>]
Exit with CRITICAL if the most recent email found is older than <seconds>. The
optional <smtp_seconds> and <imap_seconds> parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -c <seconds>[,<send>[,<recv>]]
When using the --plugin option, only one parameter is supported (-c <seconds>) and it will apply
to the entire process. You can specify a critical threshold specific to each plugin in the
plugin command line.
When using the --plugin option, no measuring of "most recent email" is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.
=item --timeout <seconds>
=item --timeout <smtp_seconds>,<imap_seconds>
=item --timeout <plugin1_seconds>,<plugin2_seconds>,...
Exit with CRITICAL if the plugins do not return a status within the specified number of seconds.
When only one parameter is used, it applies to each plugin. When multiple parameters are used
(separated by commas) they apply to plugins in the same order the plugins were specified on the
command line. When using --timeout but not the --plugin option, the first parameter is for
check_smtp_send and the second is for check_imap_receive.
=item --alert <pluginN>
Exit with WARNING or CRITICAL only if a warning or error (--warning, --critical, or --timeout)
occurs for specified plugins. If a warning or error occurs for non-specified plugins that run
BEFORE the specified plugins, the exit status will be UNKNOWN. If a warning of error occurs
for non-specified plugins that run AFTER the specified plugins, the exit status will not be
affected.
You would use this option if you are using check_email_delivery with the --plugin option and
the plugins you configure each use different servers, for example different SMTP and IMAP servers.
By default, if you do not use the --alert option, if anything goes wrong during the email delivery
check, a WARNING or CRITICAL alert will be issued. This means that if you define check_email_delivery
for the SMTP server only and the IMAP server fails, Nagios will alert you for the SMTP server which
would be misleading. If you define it for both the SMTP server and IMAP server and just one of them
fails, Nagios will alert you for both servers, which would still be misleading. If you have this
situation, you may want to use the --alert option. You define the check_email_delivery check for
both servers: for the SMTP server (first plugin) you use --alert 1, and for for the IMAP server
(second plugin) you use --alert 2. When check_email_delivery runs with --alert 1 and the SMTP
server fails, you will get the appropriate alert. If the IMAP server fails it will not affect the
status. When check_email_delivery runs with --alert 2 and the SMTP server fails, you will get the
UNKNOWN return code. If the IMAP server generates an alert you will get a WARNING or CRITICAL as
appropriate.
You can repeat this option to specify multiple plugins that should cause an alert.
Do this if you have multiple plugins on the command line but some of them involve the same server.
See also: --plugin.
Also known as: -A <pluginN>
=item --wait <seconds>[,<seconds>,...]
How long to wait between sending the message and checking that it was received. View default with
the -vV option.
When using the --plugin option, you can specify as many wait-between times as you have plugins
(minus the last plugin, because it makes no sense to wait after running the last one). For
example, if you use the --plugin option twice to specify an SMTP plugin and an IMAP plugin, and
you want to wait 5 seconds between sending and receiving, then you would specify --wait 5. A second
example, if you are using the --plugin option three times, then specifying -w 5 will wait 5 seconds
between the second and third plugins also. You can specify a different wait time
of 10 seconds between the second and third plugins, like this: -w 5,10.
=item --hostname <server>
Address or name of the SMTP and IMAP server. Examples: mail.server.com, localhost, 192.168.1.100.
Also known as: -H <server>
=item --smtp-server <server>
Address or name of the SMTP server. Examples: smtp.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.
=item --smtp-port <number>
Service port on the SMTP server. Default is 25.
=item --smtp-username <username>
=item --smtp-password <password>
Username and password to use when connecting to the SMTP server with the TLS option.
Use these options if the SMTP account has a different username/password than the
IMAP account you are testing. These options take precendence over the --username and
the --password options.
These are shell-escaped; special characters are ok.
=item --imap-server <server>
Address or name of the IMAP server. Examples: imap.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.
=item --imap-port <number>
Service port on the IMAP server. Default is 143. If you use SSL the default is 993.
=item --imap-username <username>
=item --imap-password <password>
Username and password to use when connecting to the IMAP server.
Use these options if the IMAP account has a different username/password than the
SMTP account you are testing. These options take precendence over the --username and
the --password options.
These are shell-escaped; special characters are ok.
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
Also used as the username and password for SMTP when the TLS option is enabled.
To specify a separate set of credentials for SMTP authentication, see the
options --smtp-username and --smtp-password.
=item --imap-check-interval <seconds>
How long to wait between polls of the imap-server for the specified mail. Default is 5 seconds.
=item --imap-retries <times>
How many times to poll the imap-server for the mail, before we give up. Default is 10.
=item --body <message>
Use this option to specify the body of the email message.
=item --header <header>
Use this option to set an arbitrary header in the message. You can use it multiple times.
=item --mailto recipient@your.net
You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):
$ check_email_delivery ... --mailto recipient@your.net,recipient2@your.net --mailfrom sender@your.net
This argument is shell-escaped; special characters or angle brackets around the address are ok.
=item --mailfrom sender@your.net
Use this option to set the "from" address in the email.
=item --imapssl
=item --noimapssl
Use this to enable or disable SSL for the IMAP plugin.
This argument is shell-escaped; special characters or angle brackets around the address are ok.
=item --smtptls
=item --nosmtptls
Use this to enable or disable TLS/AUTH for the SMTP plugin.
=item --libexec
Use this option to set the path of the Nagios libexec directory. The default is
/usr/local/nagios/libexec. This is where this plugin looks for the SMTP and IMAP
plugins that it depends on.
=item --plugin <command>
This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It frees the plugin from depending on specific external plugins and generalizes the
work done to determine that the email loop is operational. When using the --plugin
option, the following options are ignored: libexec, imapssl, smtptls, hostname,
username, password, smtp*, imap*, mailto, mailfrom, body, header, search.
Use this option multiple times to specify the complete trip. Typically, you would use
this twice to specify plugins for SMTP and IMAP, or SMTP and POP3.
The output will be success if all the plugins return success. Each plugin should be a
standard Nagios plugin.
A random token will be automatically generated and passed to each plugin specified on
the command line by substituting the string %TOKEN1%.
Example usage:
command_name check_email_delivery
command_line check_email_delivery
--plugin "$USER1$/check_smtp_send -H $ARG1$ --mailto recipient@your.net --mailfrom sender@your.net --header 'Subject: Nagios Test %TOKEN1%.'"
--plugin "$USER1$/check_imap_receive -H $ARG1$ -U $ARG1$ -P $ARG2$ -s SUBJECT -s 'Nagios Test %TOKEN1%.'"
This technique allows for a lot of flexibility in configuring the plugins that test
each part of your email delivery loop.
See also: --token.
Also known as: -p <command>
=item --token <format>
This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It can be used in conjunction with --plugin to control the tokens that are generated
and passed to the plugins, like %TOKEN1%.
Use this option multiple times to specify formats for different tokens. For example,
if you want %TOKEN1% to consist of only alphabetical characters but want %TOKEN2% to
consist of only digits, then you might use these options: --token aaaaaa --token nnnnn
Any tokens used in your plugin commands that have not been specified by --token <format>
will default to --token U-X-Y
Token formats:
a - alpha character (a-z)
n - numeric character (0-9)
c - alphanumeric character (a-z0-9)
h - hexadecimal character (0-9a-f)
U - unix time, seconds from epoch. eg 1193012441
X - a word from the pgp even list. eg aardvark
Y - a word from the pgp odd list. eg adroitness
Caution: It has been observed that some IMAP servers do not handle underscores well in the
search criteria. For best results, avoid using underscores in your tokens. Use hyphens or commas instead.
See also: --plugin.
Also known as: -T <format>
The PGP word list was obtained from http://en.wikipedia.org/wiki/PGP_word_list
=item --file <file>
Save (append) status information into the given tab-delimited file. Format used:
token start-time end-time status plugin-num output
Note: format may change in future versions and may become configurable.
This option available as of version 0.6.2.
Also known as: -F <file>
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Send a message with custom headers
$ check_email_delivery -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--username recipient --password secret
EMAIL DELIVERY OK - 1 seconds
=head2 Set warning and critical timeouts for receive plugin only:
$ check_email_delivery -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--username recipient --password secret -w ,,5 -c ,,15
EMAIL DELIVERY OK - 1 seconds
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 CHANGES
Wed Oct 29 13:08:00 PST 2005
+ version 0.1
Wed Nov 9 17:16:09 PST 2005
+ updated arguments to check_smtp_send and check_imap_receive
+ added eval/alarm block to implement -c option
+ added wait option to adjust sleep time between smtp and imap calls
+ added delay-warn and delay-crit options to adjust email delivery warning thresholds
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson <johann (at) axis.com>)
+ version 0.2.1
+ corrected bug in getoptions ($imap_server would never ever be set from command-line...)
+ will not make $smtp_server and $imap_server == $host if they're defined on commandline
+ added support for multiple polls of imap-server, with specified intervals
+ changed default behaviour in check_imap_server (searches for the specific id in subject and deletes mails found)
+ increased default delay_warn from 65 seconds to 95 seconds
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton <geoff.crompton@strategicdata.com.au>)
+ fixed a bug in getoptions
+ version 0.2.2
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ version 0.2.3
Fri Apr 27 20:32:53 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ changed connection error to display timeout only if timeout was the error
+ default IMAP plugin is libexec/check_imap_receive (also checking for same but with .pl extension)
+ default SMTP plugin is libexec/check_smtp_send (also checking for same but with .pl extension)
+ removed default values for SMTP port and IMAP port to allow those plugins to set the defaults; so current behavior stays the same and will continue to make sense with SSL
+ version 0.3
Thu Oct 11 10:00:00 EET 2007 (by Timo Virtaneva <timo (at) virtaneva dot com>
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.3.1
Sun Oct 21 11:01:03 PDT 2007
+ added support for TLS options to the SMTP plugin
+ version 0.4
Sun Oct 21 16:17:14 PDT 2007
+ added support for arbitrary plugins to send and receive mail (or anthing else!). see the --plugin option.
+ version 0.5
Tue Dec 4 07:36:20 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ shortcut option for --token is now -T to avoid clash with standard shortcut -t for --timeout
+ fixed some minor pod formatting issues for perldoc
+ version 0.5.1
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.5.2
Thu Jan 17 20:27:36 PST 2008 (by Timo Virtaneva <timo (at) virtaneva dot com> on Thu Oct 11 10:00:00 EET 2007)
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.5.3
Mon Jan 28 22:11:02 PST 2008
+ fixed a bug, smtp-password and imap-password are now string parameters
+ added --alert option to allow selection of which plugin(s) should cause a WARNING or CRITICAL alert
+ version 0.6
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.6.1
Mon May 26 10:39:19 PDT 2008
+ added --file option to allow plugin to record status information into a tab-delimited file
+ changed default token from U_X_Y to U-X-Y
+ version 0.6.2
Wed Jan 14 08:29:35 PST 2009
+ fixed a bug that the --header parameter was not being passed to the smtp plugin.
+ version 0.6.3
Mon Jun 8 15:43:48 PDT 2009
+ added performance data for use with PNP4Nagios! (thanks to Ben Ritcey for the patch)
+ version 0.6.4
Wed Sep 16 07:10:10 PDT 2009
+ added elapsed time in seconds to performance data
+ version 0.6.5
Fri Oct 8 19:48:44 PDT 2010
+ fixed uniform IMAP and SMTP username and password bug (thanks to Micle Moerenhout for pointing it out)
+ version 0.6.6
Mon Jan 3 08:24:23 PST 2011
+ added shell escaping for smtp-username, smtp-password, mailto, mailfrom, imap-username, and imap-password arguments
+ version 0.7.0
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1
Sun Jun 12 17:17:06 AST 2011
+ added --imap-mailbox option to pass through to check_imap_receive --mailbox option
+ added --ssl option to conveniently enable both --smtp-tls and --imap-ssl
+ version 0.7.2
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

498
check_email_delivery/check_email_delivery-0.7.1b/check_email_delivery_epn 100755
View File

@ -0,0 +1,498 @@
#!/usr/bin/perl
use strict;
my $VERSION = '0.7.1';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $host = "";
my $smtp_server = "";
my $smtp_port = "";
my $imap_server = "";
my $smtp_username = "";
my $smtp_password = "";
my $smtp_tls = "";
my $imap_port = "";
my $imap_username = "";
my $imap_password = "";
my $imap_mailbox = "";
my $username = "";
my $password = "";
my $ssl = "";
my $imap_ssl = "";
my $mailto = "";
my $mailfrom = "";
my @header = ();
my $body = "";
my $warnstr = "";
my $critstr = "";
my $waitstr = "";
my $delay_warn = 95;
my $delay_crit = 300;
my $smtp_warn = 15;
my $smtp_crit = 30;
my $imap_warn = 15;
my $imap_crit = 30;
my $timeout = "";
my @alert_plugins = ();
my $imap_interval = 5;
my $imap_retries = 5;
my @plugins = ();
my @token_formats = ();
my $tokenfile = "";
my $default_crit = 30;
my $default_warn = 15;
my $default_wait = 5;
my $default_timeout = 60;
my $time_hires = "";
my $libexec = "/usr/local/nagios/libexec";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=s"=>\$warnstr,"c|critical=s"=>\$critstr, "t|timeout=s"=>\$timeout,
"libexec=s"=>\$libexec,
# plugin settings
"p|plugin=s"=>\@plugins, "T|token=s"=>\@token_formats,
"A|alert=i"=>\@alert_plugins,
"F|file=s"=>\$tokenfile,
# common settings
"H|hostname=s"=>\$host,
"U|username=s"=>\$username,"P|password=s"=>\$password,
"ssl!"=>\$ssl,
# smtp settings
"smtp-server=s"=>\$smtp_server,"smtp-port=i"=>\$smtp_port,
"mailto=s"=>\$mailto, "mailfrom=s",\$mailfrom,
"header=s"=>\@header, "body=s"=>\$body,
# smtp-tls settings
"smtptls!"=>\$smtp_tls,
"smtp-username=s"=>\$smtp_username,"smtp-password=s"=>\$smtp_password,
# delay settings
"wait=s"=>\$waitstr,
# imap settings
"imap-server=s"=>\$imap_server,"imap-port=i"=>\$imap_port,
"imap-username=s"=>\$imap_username,"imap-password=s"=>\$imap_password,
"imap-mailbox=s"=>\$imap_mailbox,
"imap-check-interval=i"=>\$imap_interval,"imap-retries=i"=>\$imap_retries,
"imapssl!"=>\$imap_ssl,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Warning threshold: $delay_warn seconds\n";
print "Critical threshold: $delay_crit seconds\n";
print "Default wait: $default_wait seconds\n";
print "Default timeout: $default_timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $host ) {
$smtp_server = $host if $smtp_server eq "";
$imap_server = $host if $imap_server eq "";
}
if( $username ) {
$smtp_username = $username if $smtp_username eq "";
$imap_username = $username if $imap_username eq "";
}
if( $password ) {
$smtp_password = $password if $smtp_password eq "";
$imap_password = $password if $imap_password eq "";
}
if( $ssl ) {
$imap_ssl = $ssl if $imap_ssl eq "";
$smtp_tls = $ssl if $smtp_tls eq "";
}
if( $help_usage
||
(
scalar(@plugins) == 0
&&
(
$smtp_server eq "" || $mailto eq "" || $mailfrom eq ""
|| $imap_server eq "" || $username eq "" || $password eq ""
)
)
) {
print "Usage 1: $0 -H host \n\t".
"--mailto recipient\@your.net --mailfrom sender\@your.net --body 'message' \n\t".
"--username username --password password \n\t".
"[-w <seconds>] [-c <seconds>]\n\t" .
"[--imap-check-interval <seconds> ] [--imap-retries <times> ]\n";
print "Usage 2: $0 \n\t".
"-p 'first plugin command with %TOKEN1% embedded' \n\t".
"-p 'second plugin command with %TOKEN1% embedded' \n\t".
"[-w <seconds1>,<seconds2>] [-c <seconds1>,<seconds2>] \n";
exit $status{UNKNOWN};
}
# determine thresholds
my @warning_times = split(",", $warnstr);
my @critical_times = split(",", $critstr);
my @alarm_times = split(",", $timeout);
my @wait_times = split(",", $waitstr);
my ($dw,$sw,$rw) = split(",", $warnstr);
my ($dc,$sc,$rc) = split(",", $critstr);
my ($wait) = split(",", $waitstr);
$delay_warn = $dw if defined $dw and $dw ne "";
$smtp_warn = $sw if defined $sw and $sw ne "";
$imap_warn = $rw if defined $rw and $rw ne "";
$delay_crit = $dc if defined $dc and $dc ne "";
$smtp_crit = $sc if defined $sc and $sc ne "";
$imap_crit = $rc if defined $rc and $rc ne "";
my $smtp_thresholds = "";
$smtp_thresholds .= "-w $smtp_warn " if defined $smtp_warn and $smtp_warn ne "";
$smtp_thresholds .= "-c $smtp_crit " if defined $smtp_crit and $smtp_crit ne "";
my $imap_thresholds = "";
$imap_thresholds .= "-w $imap_warn " if defined $imap_warn and $imap_warn ne "";
$imap_thresholds .= "-c $imap_crit " if defined $imap_crit and $imap_crit ne "";
$imap_thresholds .= "--imap-check-interval $imap_interval " if defined $imap_interval and $imap_interval ne "";
$imap_thresholds .= "--imap-retries $imap_retries " if defined $imap_retries and $imap_retries ne "";
if( scalar(@alarm_times) == 1 ) {
$default_timeout = shift(@alarm_times);
}
# determine which other options to include
my $smtp_options = "";
$smtp_options .= "-H $smtp_server " if defined $smtp_server and $smtp_server ne "";
$smtp_options .= "-p $smtp_port " if defined $smtp_port and $smtp_port ne "";
$smtp_options .= "--tls " if defined $smtp_tls and $smtp_tls;
$smtp_options .= "-U ".shellquote($smtp_username)." " if defined $smtp_username and $smtp_username ne "";
$smtp_options .= "-P ".shellquote($smtp_password)." " if defined $smtp_password and $smtp_password ne "";
$smtp_options .= "--mailto ".shellquote($mailto)." " if defined $mailto and $mailto ne "";
$smtp_options .= "--mailfrom ".shellquote($mailfrom)." " if defined $mailfrom and $mailfrom ne "";
foreach my $h( @header ) {
$smtp_options .= "--header ".shellquote($h)." ";
}
my $imap_options = "";
$imap_options .= "-H $imap_server " if defined $imap_server and $imap_server ne "";
$imap_options .= "-p $imap_port " if defined $imap_port and $imap_port ne "";
$imap_options .= "-U ".shellquote($imap_username)." " if defined $imap_username and $imap_username ne "";
$imap_options .= "-P ".shellquote($imap_password)." " if defined $imap_password and $imap_password ne "";
$imap_options .= "--mailbox ".shellquote($imap_mailbox)." " if defined $imap_mailbox and $imap_mailbox ne "";
$imap_options .= "--ssl " if defined $imap_ssl and $imap_ssl;
# create the report object
my $report = new PluginReport;
my @report_plugins = (); # populated later with either (smtp,imap) or (plugin1,plugin2,...)
my $time_start; # initialized later with time the work actually starts
# create token formats for use with the plugins
my @alpha = qw/a b c d e f g h i j k l m n o p q r s t u v w x y z/;
my @numeric = qw/0 1 2 3 4 5 6 7 8 9/;
my @hex = qw/0 1 2 3 4 5 6 7 8 9 a b c d e f/;
my @pgp_even = qw/aardvark absurd accrue acme adrift adult afflict ahead aimless Algol allow alone ammo ancient apple artist assume Athens atlas Aztec baboon backfield backward banjo beaming bedlamp beehive beeswax befriend Belfast berserk billiard bison blackjack blockade blowtorch bluebird bombast bookshelf brackish breadline breakup brickyard briefcase Burbank button buzzard cement chairlift chatter checkup chisel choking chopper Christmas clamshell classic classroom cleanup clockwork cobra commence concert cowbell crackdown cranky crowfoot crucial crumpled crusade cubic dashboard deadbolt deckhand dogsled dragnet drainage dreadful drifter dropper drumbeat drunken Dupont dwelling eating edict egghead eightball endorse endow enlist erase escape exceed eyeglass eyetooth facial fallout flagpole flatfoot flytrap fracture framework freedom frighten gazelle Geiger glitter glucose goggles goldfish gremlin guidance hamlet highchair hockey indoors indulge inverse involve island jawbone keyboard kickoff kiwi klaxon locale lockup merit minnow miser Mohawk mural music necklace Neptune newborn nightbird Oakland obtuse offload optic orca payday peachy pheasant physique playhouse Pluto preclude prefer preshrunk printer prowler pupil puppy python quadrant quiver quota ragtime ratchet rebirth reform regain reindeer rematch repay retouch revenge reward rhythm ribcage ringbolt robust rocker ruffled sailboat sawdust scallion scenic scorecard Scotland seabird select sentence shadow shamrock showgirl skullcap skydive slingshot slowdown snapline snapshot snowcap snowslide solo southward soybean spaniel spearhead spellbind spheroid spigot spindle spyglass stagehand stagnate stairway standard stapler steamship sterling stockman stopwatch stormy sugar surmount suspense sweatband swelter tactics talon tapeworm tempest tiger tissue tonic topmost tracker transit trauma treadmill Trojan trouble tumor tunnel tycoon uncut unearth unwind uproot upset upshot vapor village virus Vulcan waffle wallet watchword wayside willow woodlark Zulu/;
my @pgp_odd = qw/adroitness adviser aftermath aggregate alkali almighty amulet amusement antenna applicant Apollo armistice article asteroid Atlantic atmosphere autopsy Babylon backwater barbecue belowground bifocals bodyguard bookseller borderline bottomless Bradbury bravado Brazilian breakaway Burlington businessman butterfat Camelot candidate cannonball Capricorn caravan caretaker celebrate cellulose certify chambermaid Cherokee Chicago clergyman coherence combustion commando company component concurrent confidence conformist congregate consensus consulting corporate corrosion councilman crossover crucifix cumbersome customer Dakota decadence December decimal designing detector detergent determine dictator dinosaur direction disable disbelief disruptive distortion document embezzle enchanting enrollment enterprise equation equipment escapade Eskimo everyday examine existence exodus fascinate filament finicky forever fortitude frequency gadgetry Galveston getaway glossary gossamer graduate gravity guitarist hamburger Hamilton handiwork hazardous headwaters hemisphere hesitate hideaway holiness hurricane hydraulic impartial impetus inception indigo inertia infancy inferno informant insincere insurgent integrate intention inventive Istanbul Jamaica Jupiter leprosy letterhead liberty maritime matchmaker maverick Medusa megaton microscope microwave midsummer millionaire miracle misnomer molasses molecule Montana monument mosquito narrative nebula newsletter Norwegian October Ohio onlooker opulent Orlando outfielder Pacific pandemic Pandora paperweight paragon paragraph paramount passenger pedigree Pegasus penetrate perceptive performance pharmacy phonetic photograph pioneer pocketful politeness positive potato processor provincial proximate puberty publisher pyramid quantity racketeer rebellion recipe recover repellent replica reproduce resistor responsive retraction retrieval retrospect revenue revival revolver sandalwood sardonic Saturday savagery scavenger sensation sociable souvenir specialist speculate stethoscope stupendous supportive surrender suspicious sympathy tambourine telephone therapist tobacco tolerance tomorrow torpedo tradition travesty trombonist truncated typewriter ultimate undaunted underfoot unicorn unify universe unravel upcoming vacancy vagabond vertigo Virginia visitor vocalist voyager warranty Waterloo whimsical Wichita Wilmington Wyoming yesteryear Yucatan/;
my %formats = (
'a' => sub { pick_random(@alpha) },
'n' => sub { pick_random(@numeric) },
'c' => sub { pick_random(@alpha,@numeric) },
'h' => sub { pick_random(@hex) },
'U' => sub { time },
'X' => sub { pick_random(@pgp_even) },
'Y' => sub { pick_random(@pgp_odd) },
);
if( scalar(@plugins) ) {
# scan the plugin commands for use of tokens to count how many we need
my $token_count = 0;
foreach my $p (@plugins) {
my @matches = sort ($p =~ m/%TOKEN(\d+)%/g);
my $max = pop @matches;
$token_count = $max if defined($max) && $max > $token_count;
}
# create the tokens
my @tokens = ();
foreach my $t (1..$token_count) {
my $format = shift @token_formats;
$format = "U-X-Y" unless $format;
my @format_characters = split(//, $format);
my $token = "";
foreach my $c (@format_characters) {
if( defined $formats{$c} ) {
$token .= &{$formats{$c}};
}
else {
$token .= $c;
}
}
push @tokens, $token;
}
# substitute the tokens into each plugin command
foreach my $p (@plugins) {
foreach my $t (1..$token_count) {
my $token = $tokens[$t-1];
$p =~ s/%TOKEN$t%/$token/g;
}
}
# mark plugins that are allowed to generate alerts. default behavior is to alert for all plugins.
my %alert_plugins = ();
if( scalar(@alert_plugins) > 0 ) {
%alert_plugins = map { $_ => 1 } @alert_plugins;
}
else {
%alert_plugins = map { $_ => 1 } (1..scalar(@plugins));
}
# run each plugin and store its output in a report
$time_start = time;
my $i = 0;
foreach my $p( @plugins ) {
$i++;
my $plugin_timeout = shift(@alarm_times) || $default_timeout;
# run the plugin
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $plugin_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $plugin_timeout;
my $output = `$p`;
chomp $output;
if( $output !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - plugin $i error: $output\n";
print "Plugin $i: $p\n" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'UNKNOWN',$i,$output) if $tokenfile;
exit $status{UNKNOWN};
}
if( $output =~ m/CRITICAL/ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY CRITICAL - plugin $i failed: $output\n";
print "Plugin $i: $p" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'CRITICAL',$i,$output) if $tokenfile;
exit $status{CRITICAL};
}
if( $output =~ m/WARNING/ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY WARNING - plugin $i warning: $output\n";
print "Plugin $i: $p\n" if $verbose;
# record tokens in a file if option is enabled
record_tokens($tokenfile,\@tokens,$time_start,undef,'WARNING',$i,$output) if $tokenfile;
exit $status{WARNING};
}
$report->{"plugin".$i} = $output;
alarm 0;
};
if( $@ && $alert_plugins{$i} ) {
print "EMAIL DELIVERY CRITICAL - Could not run plugin $i: $@\n";
print "Plugin $i: $p\n" if $verbose;
exit $status{CRITICAL};
}
# if this wasn't the last plugin, wait before continuing
if( $i < scalar(@plugins) ) {
my $wait = shift(@wait_times) || $default_wait;
sleep $wait;
}
# compatibility with the "not using plugins" method... pretend to calculate the total round trip time (the delay) using data from the plugins ...
$report->{max} = 0;
$report->{delay} = 0;
}
# register the list of reports
foreach my $r ( 1..scalar(@plugins)) {
push @report_plugins, "plugin".$r;
}
# record tokens in a file if option is enabled
my $tmp_long_report = join(", ", map { "$_: $report->{$_}" } @report_plugins ) if $tokenfile;
record_tokens($tokenfile,\@tokens,$time_start,time,'OK',scalar(@plugins),$tmp_long_report) if $tokenfile;
}
else {
# not using plugins.
$time_start = time;
# send email via SMTP
my $id = $time_start; # XXX should include localhost name maybe or some random number in case the same mailbox is used for multiple delivery tests
my $smtp_plugin = "$libexec/check_smtp_send";
$smtp_plugin = "$libexec/check_smtp_send.pl" unless -e $smtp_plugin;
my $smtp_timeout = shift(@alarm_times) || $default_timeout;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $smtp_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $smtp_timeout;
my $smtp = `$smtp_plugin $smtp_options --header 'Subject: Nagios Message SMTP $smtp_server ID $id.' --body 'Nagios Email Delivery Plugin\n$body' $smtp_thresholds`;
if( $smtp !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - smtp unknown: $smtp\n";
exit $status{UNKNOWN};
}
if( $smtp =~ m/CRITICAL/ ) {
print "EMAIL DELIVERY CRITICAL - smtp failed: $smtp\n";
exit $status{CRITICAL};
}
chomp $smtp;
$report->{smtp} = $smtp;
alarm 0;
};
if( $@ ) {
print "EMAIL DELIVERY CRITICAL - Could not connect to SMTP server $smtp_server: $@\n";
exit $status{CRITICAL};
}
# wait before checking the delivery
$wait = shift(@wait_times) || $default_wait;
sleep $wait;
# check email via IMAP
my $imap_plugin = "$libexec/check_imap_receive";
$imap_plugin = "$libexec/check_imap_receive.pl" unless -e $imap_plugin;
my $imap_timeout = shift(@alarm_times) || $default_timeout;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $imap_timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $imap_timeout;
my $imap = `$imap_plugin $imap_options -s SUBJECT -s 'Nagios Message SMTP $smtp_server ID' --capture-max 'Nagios Message SMTP $smtp_server ID (\\d+)' --nodelete-captured $imap_thresholds`;
if( $imap !~ m/OK|WARNING|CRITICAL/ ) {
print "EMAIL DELIVERY UNKNOWN - imap unknown: $imap\n";
exit $status{UNKNOWN};
}
if( $imap =~ m/CRITICAL/ ) {
print "EMAIL DELIVERY CRITICAL - imap failed: $imap\n";
exit $status{CRITICAL};
}
if( $imap =~ m/ (\d+) max/ ) {
my $last_received = $1;
$report->{max} = $1;
my $delay = time - $last_received;
$report->{delay} = $delay;
}
chomp $imap;
$report->{imap} = $imap;
alarm 0;
};
if( $@ ) {
print "EMAIL DELIVERY CRITICAL - Could not connect to IMAP server $imap_server: $@\n";
exit $status{CRITICAL};
}
# register the list of reports
push @report_plugins, ("smtp","imap");
}
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
my @warning = ();
my @critical = ();
push @warning, "most recent received $report->{delay} seconds ago" if( defined($report->{delay}) && $report->{delay} > $delay_warn );
push @critical, "most recent received $report->{delay} seconds ago" if( defined($report->{delay}) && $report->{delay} > $delay_crit );
push @warning, "no emails found" if( !defined($report->{delay}) );
# print report and exit with known status
my $perf_data = "delay=".$report->{delay}."s;$delay_warn;$delay_crit;0 elapsed=".$report->{seconds}."s"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6
my $short_report = $report->text(qw/seconds delay/) . " | $perf_data";
my $long_report = join("", map { "$_: $report->{$_}\n" } @report_plugins );
if( scalar @critical ) {
my $alerts = join(", ", @critical);
print "EMAIL DELIVERY CRITICAL - $alerts; $short_report\n";
print $long_report if $verbose;
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $alerts = join(", ", @warning);
print "EMAIL DELIVERY WARNING - $alerts; $short_report\n";
print $long_report if $verbose;
exit $status{WARNING};
}
print "EMAIL DELIVERY OK - $short_report\n";
print $long_report if $verbose;
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# returns one random character from a set of characters
sub pick_random {
my @set = @_;
my $size = scalar @set;
my $string = $set[int(rand($size))];
return $string;
}
# appens tokens and times to a tab-separated value file
sub record_tokens {
my ($tokenfile,$tokens,$time_start,$time_end,$status,$plugin_num,$output) = @_;
if( $tokenfile ) {
my @tokens = @$tokens;
$time_end = "" unless defined $time_end;
$status = "" unless defined $status;
$plugin_num = "" unless defined $plugin_num;
$output = "" unless defined $output;
print "saving ".scalar(@tokens)." tokens into $tokenfile\n" if $verbose;
open(TOKENFILE,">>$tokenfile");
foreach(@tokens) {
print TOKENFILE "$_\t$time_start\t$time_end\t$status\t$plugin_num\t$output\n";
}
close(TOKENFILE);
}
}
# wraps argument in single-quotes and escapes any single-quotes in the argument
sub shellquote {
my $str = shift || "";
$str =~ s/\'/\'\\\'\'/g;
return "'$str'";
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package main;
1;

431
check_email_delivery/check_email_delivery-0.7.1b/check_imap_quota 100755
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@ -0,0 +1,431 @@
#!/usr/bin/perl
use strict;
my $VERSION = '0.2';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
#### IDEA AND INITIAL IMPLEMENTATION BASED ON CHECK_IMAP_RECEIVE WAS CONTRIBUTED BY JOHAN ROMME from THE NETHERLANDS 14 Oct 2011
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Mail::IMAPClient/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $username = "";
my $password = "";
my $mailbox = "INBOX";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $peek = "";
my $ssl = 0;
my $tls = 0;
my $time_hires = "";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
"U|username=s"=>\$username,"P|password=s"=>\$password, "m|mailbox=s"=>\$mailbox,
"ssl!"=>\$ssl, "tls!"=>\$tls,
# search settings
"peek!"=>\$peek,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
my @required_module = ();
push @required_module, 'IO::Socket::SSL' if $ssl || $tls;
exit $status{UNKNOWN} unless load_modules(@required_module);
if( $help_usage
||
( $imap_server eq "" || $username eq "" || $password eq "" )
) {
print "Usage: $0 -H host [-p port] -U username -P password [--imap-retries <tries>]\n";
exit $status{UNKNOWN};
}
# initialize
my $report = new PluginReport;
my $time_start = time;
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
if( $ssl || $tls ) {
$imap_port = $default_imap_ssl_port unless $imap_port;
my $socket = IO::Socket::SSL->new("$imap_server:$imap_port");
die IO::Socket::SSL::errstr() unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
$imap->User($username);
$imap->Password($password);
$imap->login() or die "$@";
}
else {
$imap_port = $default_imap_port unless $imap_port;
$imap = Mail::IMAPClient->new(Debug => 0 );
$imap->Server("$imap_server:$imap_port");
$imap->User($username);
$imap->Password($password);
$imap->connect() or die "$@";
}
$imap->Peek(1) if $peek;
$imap->Ignoresizeerrors(1);
alarm 0;
};
if( $@ ) {
chomp $@;
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
my $time_connected = time;
my $quotaUsed;
my $quotaLimit;
my $quotaPercentage;
my $quotaPercentageWarning = 80;
my $quotaPercentageCritical = 90;
my $quotaMessage;
# look for the quota limits
my $tries = 0;
my @msgs;
eval {
my $k;
my @l = $imap->getquotaroot();
foreach $k (@l) {
print "$k\n" if $verbose > 2;
if ($k =~ /STORAGE +(\d+) +(\d+)/) {
$quotaUsed = $1;
$quotaLimit = $2;
}
}
if (!length($quotaUsed) && !length($quotaLimit)) {
print "no answer from imap host\n" if $verbose > 2;
} elsif (!length($quotaUsed) || !length($quotaLimit) {
print "incorrect answer from imap host\n";
$imap->close();
exit $status{UNKNOWN};
} else {
$quotaPercentage = sprintf("%.1f", (100 * $quotaUsed) / $quotaLimit);
$quotaMessage = "$quotaUsed $quotaLimit - $quotaPercentage%";
}
};
if( $@ ) {
chomp $@;
print "IMAP QUOTA CRITICAL - Could not check quota at $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
# print report and exit with known status
if($quotaPercentage >= $quotaPercentageCritical) {
print "IMAP QUOTA CRITICAL - $quotaMessage\n";
exit $status{CRITICAL};
}
if($quotaPercentage >= $quotaPercentageWarning) {
print "IMAP QUOTA WARNING - $quotaMessage\n";
exit $status{WARNING};
}
print "IMAP QUOTA OK - $quotaMessage\n";
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package main;
1;
__END__
=pod
=head1 NAME
check_imap_quota - connects to an IMAP account and checks the quota
=head1 SYNOPSIS
check_imap_quota -vV
check_imap_quota -?
check_imap_quota --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the IMAP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical <messages>
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
=item --mailbox <mailbox>
Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m <mailbox>
=item --ssl
=item --nossl
Enable SSL protocol. Requires IO::Socket::SSL.
Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.
Use the nossl option to turn off the ssl option.
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Report how many emails are in the mailbox
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete
IMAP RECEIVE OK - 1 seconds, 7 found
=head2 Report the email with the highest value
Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: <auto-000000992528@server.net>
Homeruns 5
And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s "Results of Autoscript" --capture-max "Homeruns (\d+)" --nodelete-captured
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted
=head2 Troubleshoot your search parameters
Add the --nodelete and --imap-retries=1 parameters to your command line.
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 SEE ALSO
http://nagios.org/
http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod
http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod
=head1 CHANGES
Fri Nov 11 04:53:09 AST 2011
+ version 0.1 created with quota code contributed by Johan Romme
Tue Dec 20 17:38:04 PST 2011
+ fixed bug where a quota of 0 was reported as an incorrect response from the server, thanks to Eike Arndt
+ version 0.2
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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#!/usr/bin/perl
use strict;
my $VERSION = '0.2';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
#### IDEA AND INITIAL IMPLEMENTATION BASED ON CHECK_IMAP_RECEIVE WAS CONTRIBUTED BY JOHAN ROMME from THE NETHERLANDS 14 Oct 2011
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Mail::IMAPClient/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $username = "";
my $password = "";
my $mailbox = "INBOX";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $peek = "";
my $ssl = 0;
my $tls = 0;
my $time_hires = "";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
"U|username=s"=>\$username,"P|password=s"=>\$password, "m|mailbox=s"=>\$mailbox,
"ssl!"=>\$ssl, "tls!"=>\$tls,
# search settings
"peek!"=>\$peek,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
my @required_module = ();
push @required_module, 'IO::Socket::SSL' if $ssl || $tls;
exit $status{UNKNOWN} unless load_modules(@required_module);
if( $help_usage
||
( $imap_server eq "" || $username eq "" || $password eq "" )
) {
print "Usage: $0 -H host [-p port] -U username -P password [--imap-retries <tries>]\n";
exit $status{UNKNOWN};
}
# initialize
my $report = new PluginReport;
my $time_start = time;
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
if( $ssl || $tls ) {
$imap_port = $default_imap_ssl_port unless $imap_port;
my $socket = IO::Socket::SSL->new("$imap_server:$imap_port");
die IO::Socket::SSL::errstr() unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
$imap->User($username);
$imap->Password($password);
$imap->login() or die "$@";
}
else {
$imap_port = $default_imap_port unless $imap_port;
$imap = Mail::IMAPClient->new(Debug => 0 );
$imap->Server("$imap_server:$imap_port");
$imap->User($username);
$imap->Password($password);
$imap->connect() or die "$@";
}
$imap->Peek(1) if $peek;
$imap->Ignoresizeerrors(1);
alarm 0;
};
if( $@ ) {
chomp $@;
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "IMAP QUOTA CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
my $time_connected = time;
my $quotaUsed;
my $quotaLimit;
my $quotaPercentage;
my $quotaPercentageWarning = 80;
my $quotaPercentageCritical = 90;
my $quotaMessage;
# look for the quota limits
my $tries = 0;
my @msgs;
eval {
my $k;
my @l = $imap->getquotaroot();
foreach $k (@l) {
print "$k\n" if $verbose > 2;
if ($k =~ /STORAGE +(\d+) +(\d+)/) {
$quotaUsed = $1;
$quotaLimit = $2;
}
}
if (!length($quotaUsed) && !length($quotaLimit)) {
print "no answer from imap host\n" if $verbose > 2;
} elsif (!length($quotaUsed) || !length($quotaLimit) {
print "incorrect answer from imap host\n";
$imap->close();
exit $status{UNKNOWN};
} else {
$quotaPercentage = sprintf("%.1f", (100 * $quotaUsed) / $quotaLimit);
$quotaMessage = "$quotaUsed $quotaLimit - $quotaPercentage%";
}
};
if( $@ ) {
chomp $@;
print "IMAP QUOTA CRITICAL - Could not check quota at $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
# print report and exit with known status
if($quotaPercentage >= $quotaPercentageCritical) {
print "IMAP QUOTA CRITICAL - $quotaMessage\n";
exit $status{CRITICAL};
}
if($quotaPercentage >= $quotaPercentageWarning) {
print "IMAP QUOTA WARNING - $quotaMessage\n";
exit $status{WARNING};
}
print "IMAP QUOTA OK - $quotaMessage\n";
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package main;
1;

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#!/usr/bin/perl
use strict;
my $VERSION = '0.7.5';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Mail::IMAPClient/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $username = "";
my $password = "";
my $mailbox = "INBOX";
my @search = ();
my $search_critical_min = 1;
my $search_critical_max = -1; # -1 means disabled for this option
my $search_warning_min = 1;
my $search_warning_max = -1; # -1 means disabled for this option
my $capture_max = "";
my $capture_min = "";
my $delete = 1;
my $no_delete_captured = "";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $interval = 5;
my $max_retries = 10;
my $download = "";
my $download_max = "";
my $peek = "";
my $template = "";
my $ssl = 0;
my $ssl_ca_file = "";
my $tls = 0;
my $time_hires = "";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
"U|username=s"=>\$username,"P|password=s"=>\$password, "m|mailbox=s"=>\$mailbox,
"imap-check-interval=i"=>\$interval,"imap-retries=i"=>\$max_retries,
"ssl!"=>\$ssl, "ssl-ca-file=s"=>\$ssl_ca_file, "tls!"=>\$tls,
# search settings
"s|search=s"=>\@search,
"search-critical-min=i"=>\$search_critical_min, "search-critical-max=i"=>\$search_critical_max,
"search-warning-min=i"=>\$search_warning_min, "search-warning-max=i"=>\$search_warning_max,
"capture-max=s"=>\$capture_max, "capture-min=s"=>\$capture_min,
"delete!"=>\$delete, "nodelete-captured"=>\$no_delete_captured,
"download!"=>\$download, "download_max=i"=>\$download_max, "download-max=i"=>\$download_max,
"peek!"=>\$peek,
"template!"=>\$template,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
my @required_module = ();
push @required_module, 'IO::Socket::SSL' if $ssl || $tls;
push @required_module, 'Email::Simple' if $download;
push @required_module, ('Text::Template','Date::Manip') if $template;
exit $status{UNKNOWN} unless load_modules(@required_module);
if( $help_usage
||
( $imap_server eq "" || $username eq "" || $password eq "" || scalar(@search)==0 )
) {
print "Usage: $0 -H host [-p port] -U username -P password -s HEADER -s X-Nagios -s 'ID: 1234.' [-w <seconds>] [-c <seconds>] [--imap-check-interval <seconds>] [--imap-retries <tries>]\n";
exit $status{UNKNOWN};
}
# before attempting to connect to the server, check if any of the search parameters
# use substitution functions and make sure we can parse them first. if we can't we
# need to abort since the search will be meaningless.
if( $template ) {
foreach my $token (@search) {
my $t = Text::Template->new(TYPE=>'STRING',SOURCE=>$token,PACKAGE=>'ImapSearchTemplate');
$token = $t->fill_in(PREPEND=>q{package ImapSearchTemplate;});
#print "token: $token\n";
}
}
# initialize
my $report = new PluginReport;
my $time_start = time;
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
if( $ssl || $tls ) {
$imap_port = $default_imap_ssl_port unless $imap_port;
my %ssl_args = ();
if( length($ssl_ca_file) > 0 ) {
$ssl_args{SSL_verify_mode} = 1;
$ssl_args{SSL_ca_file} = $ssl_ca_file;
$ssl_args{SSL_verifycn_scheme} = 'imap';
$ssl_args{SSL_verifycn_name} = $imap_server;
}
my $socket = IO::Socket::SSL->new(PeerAddr=>"$imap_server:$imap_port", %ssl_args);
die IO::Socket::SSL::errstr() . " (if you get this only when using both --ssl and --ssl-ca-file, but not when using just --ssl, the server SSL certificate failed validation)" unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
$imap->User($username);
$imap->Password($password);
$imap->login() or die "Cannot login: $@";
}
else {
$imap_port = $default_imap_port unless $imap_port;
$imap = Mail::IMAPClient->new(Debug => 0 );
$imap->Server("$imap_server:$imap_port");
$imap->User($username);
$imap->Password($password);
$imap->connect() or die "$@";
}
$imap->Peek(1) if $peek;
$imap->Ignoresizeerrors(1);
alarm 0;
};
if( $@ ) {
chomp $@;
print "IMAP RECEIVE CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "IMAP RECEIVE CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
my $time_connected = time;
# select a mailbox
print "selecting mailbox $mailbox\n" if $verbose > 2;
unless( $imap->select($mailbox) ) {
print "IMAP RECEIVE CRITICAL - Could not select $mailbox: $@ $!\n";
if( $verbose > 2 ) {
print "Mailbox list:\n" . join("\n", $imap->folders) . "\n";
print "Mailbox separator: " . $imap->separator . "\n";
##print "Special mailboxes:\n" . join("\n", map { "$_ => ".
}
$imap->logout();
exit $status{CRITICAL};
}
# search for messages
my $tries = 0;
my @msgs;
until( scalar(@msgs) != 0 || $tries >= $max_retries ) {
eval {
$imap->select( $mailbox );
# if download flag is on, we download recent messages and search ourselves
if( $download ) {
print "downloading messages to search\n" if $verbose > 2;
@msgs = download_and_search($imap,@search);
}
else {
print "searching on server\n" if $verbose > 2;
@msgs = $imap->search(@search);
die "Invalid search parameters: $@" if $@;
}
};
if( $@ ) {
chomp $@;
print "Cannot search messages: $@\n";
$imap->close();
$imap->logout();
exit $status{UNKNOWN};
}
$report->{found} = scalar(@msgs);
$tries++;
sleep $interval unless (scalar(@msgs) != 0 || $tries >= $max_retries);
}
sub download_and_search {
my ($imap,@search) = @_;
my $ims = new ImapMessageSearch;
$ims->querytokens(@search);
my @found = ();
@msgs = reverse $imap->messages or (); # die "Cannot list messages: $@\n"; # reversing to get descending order, which is most recent messages first! (at least on my mail servers)
@msgs = @msgs[0..$download_max-1] if $download_max && scalar(@msgs) > $download_max;
foreach my $m (@msgs) {
my $message = $imap->message_string($m);
push @found, $m if $ims->match($message);
}
return @found;
}
# capture data in messages
my $captured_max_id = "";
my $captured_min_id = "";
if( $capture_max || $capture_min ) {
my $max = undef;
my $min = undef;
my %captured = ();
for (my $i=0;$i < scalar(@msgs); $i++) {
my $message = $imap->message_string($msgs[$i]);
if( $message =~ m/$capture_max/ ) {
if( !defined($max) || $1 > $max ) {
$captured{ $i } = 1;
$max = $1;
$captured_max_id = $msgs[$i];
}
}
if( $message =~ m/$capture_min/ ) {
if( !defined($min) || $1 < $min ) {
$captured{ $i } = 1;
$min = $1;
$captured_min_id = $msgs[$i];
}
}
print $message if $verbose > 1;
}
$report->{captured} = scalar keys %captured;
$report->{max} = $max if defined $max;
$report->{min} = $min if defined $min;
}
# delete messages
if( $delete ) {
print "deleting matching messages\n" if $verbose > 2;
my $deleted = 0;
for (my $i=0;$i < scalar(@msgs); $i++) {
next if ($no_delete_captured && ($captured_max_id eq $msgs[$i]));
next if ($no_delete_captured && ($captured_min_id eq $msgs[$i]));
$imap->delete_message($msgs[$i]);
$deleted++;
}
$report->{deleted} = $deleted;
$imap->expunge() if $deleted;
}
# deselect the mailbox
$imap->close();
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
$report->{found} = 0 unless defined $report->{found};
$report->{captured} = 0 unless defined $report->{captured};
my @warning = ();
my @critical = ();
push @warning, "found less than $search_warning_min" if( scalar(@msgs) < $search_warning_min );
push @warning, "found more than $search_warning_max" if ( $search_warning_max > -1 && scalar(@msgs) > $search_warning_max );
push @critical, "found less than $search_critical_min" if ( scalar(@msgs) < $search_critical_min );
push @critical, "found more than $search_critical_max" if ( $search_critical_max > -1 && scalar(@msgs) > $search_critical_max );
push @warning, "connection time more than $warntime" if( $time_connected - $time_start > $warntime );
push @critical, "connection time more than $criticaltime" if( $time_connected - $time_start > $criticaltime );
# print report and exit with known status
my $perf_data = "elapsed=".$report->{seconds}."s found=".$report->{found}."messages captured=".$report->{captured}."messages"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6 and http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN185
my $short_report = $report->text(qw/seconds found captured max min deleted/) . " | $perf_data";
if( scalar @critical ) {
my $crit_alerts = join(", ", @critical);
print "IMAP RECEIVE CRITICAL - $crit_alerts; $short_report\n";
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $warn_alerts = join(", ", @warning);
print "IMAP RECEIVE WARNING - $warn_alerts; $short_report\n";
exit $status{WARNING};
}
print "IMAP RECEIVE OK - $short_report\n";
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package ImapMessageSearch;
require Email::Simple;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{querystring} = [];
$self->{querytokens} = [];
$self->{queryfnlist} = [];
$self->{mimemessage} = undef;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub querystring {
my ($self,$string) = @_;
$self->{querystring} = $string;
return $self->querytokens( parseimapsearch($string) );
}
sub querytokens {
my ($self,@tokens) = @_;
$self->{querytokens} = [@tokens];
$self->{queryfnlist} = [create_search_expressions(@tokens)];
return $self;
}
sub match {
my ($self,$message_string) = @_;
return 0 unless defined $message_string;
my $message_mime = Email::Simple->new($message_string);
return $self->matchmime($message_mime);
}
sub matchmime {
my ($self,$message_mime) = @_;
my $match = 1;
foreach my $x (@{$self->{queryfnlist}}) {
$match = $match && $x->($message_mime);
}
return $match;
}
# this should probably become its own Perl module... see also Net::IMAP::Server::Command::Search
sub create_search_expressions {
my (@search) = @_;
return () unless scalar(@search);
my $token = shift @search;
if( $token eq 'TEXT' ) {
my $value = shift @search;
return (sub {shift->as_string =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'BODY' ) {
my $value = shift @search;
return (sub {shift->body =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'SUBJECT' ) {
my $value = shift @search;
return (sub {shift->header('Subject') =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'HEADER' ) {
my $name = shift @search;
my $value = shift @search;
return (sub {shift->header($name) =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'NOT' ) {
my @exp = create_search_expressions(@search);
my $next = shift @exp;
return (sub { ! $next->(@_) }, @exp);
}
if( $token eq 'OR' ) {
my @exp = create_search_expressions(@search);
my $next1 = shift @exp;
my $next2 = shift @exp;
return (sub { $next1->(@_) or $next2->(@_) }, @exp);
}
if( $token eq 'SENTBEFORE' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) < 0},create_search_expressions(@search));
}
if( $token eq 'SENTON' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) == 0},create_search_expressions(@search));
}
if( $token eq 'SENTSINCE' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) > 0},create_search_expressions(@search));
}
return sub { die "invalid search parameter: $token" };
}
sub datecmp {
my ($date1,$date2) = @_;
my $parsed1 = Date::Manip::ParseDate($date1);
my $parsed2 = Date::Manip::ParseDate($date2);
my $cmp = Date::Manip::Date_Cmp($parsed1,$parsed2);
print " $date1 <=> $date2 -> $cmp\n";
return $cmp <=> 0;
}
package ImapSearchTemplate;
# Takes an English date specification ("now", etc) and an optional offset ("-4 hours")
# and returns an RFC 2822 formatted date string.
# see http://search.cpan.org/dist/Date-Manip/lib/Date/Manip.pod
sub rfc2822dateHeader {
my ($when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, "%a, %d %b %Y %H:%M:%S %z");
}
sub rfc2822date {
my ($when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, "%d-%b-%Y");
}
# alias for 2822 ... RFC 822 is an older version and specifies 2-digit years, but we ignore that for now.
sub rfc822dateHeader { return rfc2822dateHeader(@_); }
sub rfc822date { return rfc2822date(@_); }
sub date {
my ($format,$when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, $format);
}
package main;
1;
__END__
=pod
=head1 NAME
check_imap_receive - connects to and searches an IMAP account for messages
=head1 SYNOPSIS
check_imap_receive -vV
check_imap_receive -?
check_imap_receive --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the IMAP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical <messages>
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --imap-check-interval <seconds>
How long to wait after searching for a matching message before searching again. Only takes effect
if no messages were found. Default is 5 seconds.
=item --imap-retries <number>
How many times to try searching for a matching message before giving up. If you set this to 0 then
messages will not be searched at all. Setting this to 1 means the plugin only tries once. Etc.
Default is 10 times.
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
=item --mailbox <mailbox>
Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m <mailbox>
=item --search <string>
Use this option to filter the messages. Default is not to filter. You may (must) use this option
multiple times in order to create any valid IMAP search criteria. See the examples and see also
http://www.ietf.org/rfc/rfc2060.txt (look for section 6.4.4, the SEARCH command)
This is the way to find messages matching a given subject:
-s SUBJECT -s "a given subject"
You can use the following technique for any header, including Subject. To find "Header-Name: some value":
-s HEADER -s Header-Name -s "some value"
Modern IMAP servers that support rfc5032 extensions allow you to search for messages
older or younger than a number of seconds. So to find messages received in the past hour,
you can do:
-s YOUNGER -s 3600
Or to find messages received more than 5 minutes ago, you can do:
-s OLDER -s 300
Also known as: -s <string>
=item --download
=item --nodownload
This option causes all messages in the specified mailbox to be downloaded from the server
and searched locally. See --download-max if you only want to download a few messages.
Currently only the following RFC 2060 search criteria are supported:
TEXT, BODY, SUBJECT, HEADER, NOT, OR, SENTBEFORE, SENTON, SENTSINCE.
Requires Email::Simple to be installed. It is available on CPAN.
This option may be particularly useful to you if your mail server is slow to index
messages (like Exchange 2003), causing the plugin not to find them with IMAP SEARCH
even though they are in the inbox.
It's also useful if you're searching for messages that have been on the server for a
specified amount of time, like some minutes or hours, because the standard IMAP search
function only allows whole dates. For this, use the standard search keywords but you
can specify either just a date like in RFC 2060 or a date and a time.
If you use SENTBEFORE, SENTON, or SENTSINCE, you must have Date::Manip installed
on your system.
=item --download-max
Limits the number of messages downloaded from the server when the --download option is used.
Default is to download and search all messages.
=item --search-critical-min <messages>
This option will trigger a CRITICAL status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.
This parameter defaults to 1 so that if no messages are found, the plugin will exit with a CRITICAL status.
If you want the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0.
=item --search-critical-max <messages>
This option will trigger a CRITICAL status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.
This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
CRITICAL if it finds 11 messages. If you set it to 1, the plugin will exit with CRITICAL if it finds
any more than 1 message. If you set it to 0, the plugin will exit with CRITICAL if it finds any messages
at all. If you set it to -1 it will be disabled.
=item --search-warning-min <messages>
This option will trigger a WARNING status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.
This parameter defaults to 1 so that if no messages are found, the plugin will exit with a WARNING status.
If you want to suppress the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0. When this parameter is 0, it means that you expect the mailbox not to have any messages.
=item --search-warning-max <messages>
This option will trigger a WARNING status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.
This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
WARNING if it finds 11 messages. If you set it to 1, the plugin will exit with WARNING if it finds
any more than 1 message. If you set it to 0, the plugin will exit with WARNING if it finds any messages
at all. If you set it to -1 it will be disabled.
=item --capture-max <regexp>
In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a "capture-max" regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the highest captured value.
The regexp is expected to capture a numeric value.
=item --capture-min <regexp>
In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a "capture-min" regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the lowest captured value.
The regexp is expected to capture a numeric value.
=item --delete
=item --nodelete
Use the delete option to delete messages that matched the search criteria. This is useful for
preventing the mailbox from filling up with automated messages (from the check_smtp_send plugin, for example).
THE DELETE OPTION IS TURNED *ON* BY DEFAULT, in order to preserve compatibility with an earlier version.
Use the nodelete option to turn off the delete option.
=item --nodelete-captured
If you use both the capture-max and delete arguments, you can also use the nodelete-captured argument to specify that the email
with the highest captured value should not be deleted. This leaves it available for comparison the next time this plugin runs.
If you do not use the delete option, this option has no effect.
=item --ssl
=item --nossl
Enable SSL protocol. Requires IO::Socket::SSL.
Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.
Use the nossl option to turn off the ssl option.
=item --ssl-ca-file
Use this to verify the server SSL certificate against a local .pem file. You'll need to
specify the path to the .pem file as the parameter.
You can use the imap_ssl_cert utility included in this distribution to connect to your IMAP
server and save its SSL certificates into your .pem file. Usage is like this:
imap_ssl_cert -H imap.server.com > ca_file.pem
Only applicable when --ssl option is enabled.
=item --template
=item --notemplate
Enable (or disable) processing of IMAP search parameters. Requires Text::Template and Date::Manip.
Use this option to apply special processing to IMAP search parameters that allows you to use the
results of arbitrary computations as the parameter values. For example, you can use this feature
to search for message received up to 4 hours ago.
Modern IMAP servers that support rfc5032 extensions allow searching with the YOUNGER and OLDER
criteria so a message received up to 4 hours ago is -s YOUNGER -s 14400. But if your mail server
doesn't support that, you could use the --template option to get similar functionality.
When you enable the --template option, each parameter you pass to the -s option is parsed by
Text::Template. See the Text::Template manual for more information, but in general any expression
written in Perl will work.
A convenience function called rfc2822dateHeader is provided to you so you can easily compute properly
formatted dates for use as search parameters. The rfc2822date function can take one or two
parameters itself: the date to format and an optional offset. To use the current time as a
search parameter, you can write this:
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{rfc2822dateHeader("now")}'
The output of {rfc2822dateHeader("now")} looks like this: Wed, 30 Sep 2009 22:44:03 -0700 and
is suitable for use with a date header, like HEADER Delivery-Date.
To use a time in the past relative to the current time or day, you can use a second convenience function
called rfc2822date and write this:
$ check_imap_receive ... --template -s SENTSINCE -s '{rfc2822date("now","-1 day")}'
The output of {rfc2822date("now","-1 day")} looks like this: 29-Sep-2009 and is suitable for use
with BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, and SINCE.
I have seen some email clients use a different format in the Date field,
like September 17, 2009 9:46:51 AM PDT. To specify an arbitrary format like this one, write this:
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{date("%B %e, %Y %i:%M:%S %p %Z","now","-4 hours")}'
You can use BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, or SINCE to search for messages that arrived
on, before, or after a given day but not on, before, or after a specific time on that day.
To search for messages that arrived on, before, or after a specific time you have to use the
Delivery-Date or another date field, like with -s HEADER -s Delivery-Date in the example above.
See the Date::Manip manual for more information on the allowed expressions for date and delta strings.
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Report how many emails are in the mailbox
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete
IMAP RECEIVE OK - 1 seconds, 7 found
=head2 Report the email with the highest value
Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: <auto-000000992528@server.net>
Homeruns 5
And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s "Results of Autoscript" --capture-max "Homeruns (\d+)" --nodelete-captured
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted
=head2 Troubleshoot your search parameters
Add the --nodelete and --imap-retries=1 parameters to your command line.
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 SEE ALSO
http://nagios.org/
http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod
http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod
=head1 CHANGES
Wed Oct 29 11:00:00 PST 2005
+ version 0.1
Wed Nov 9 09:53:32 PST 2005
+ added delete/nodelete option. deleting found messages is still default behavior.
+ added capture-max option
+ added nodelete-captured option
+ added mailbox option
+ added eval/alarm block to implement -c option
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson <johann (at) axis.com>)
+ version 0.2.1
+ added support for multiple polls of imap-server, with specified intervals
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ added patch from Benjamin Ritcey <ben@ritcey.com> for SSL support on machines that have an SSL-enabled
+ version 0.2.3
Fri Apr 27 18:56:50 PDT 2007
+ fixed problem that "Invalid search parameters" was not printed because of missing newline to flush it
+ warnings and critical errors now try to append error messages received from the IMAP client
+ changed connection error to display timeout only if timeout was the error
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ added abbreviations U for username, P for password, m for mailbox
+ fixed bug that imap-check-interval applied even after the last try (imap-retries) when it was not necessary
+ the IMAP expunge command is not sent unless at least one message is deleted
+ fixed bug that the "no messages" warning was printed even if some messages were found
+ version 0.3
Sun Oct 21 14:08:07 PDT 2007
+ added port info to the "could not connect" error message
+ fixed bug that occurred when using --ssl --port 143 which caused port to remain at the default 993 imap/ssl port
+ added clarity shortcuts --search-subject and --search-header
+ port is no longer a required option. defaults to 143 for regular IMAP and 993 for IMAP/SSL
+ version 0.3.1
Sun Oct 21 20:41:56 PDT 2007
+ reworked ssl support to use IO::Socket::SSL instead of the convenience method Mail::IMAPClient->Ssl (which is not included in the standard Mail::IMAPClient package)
+ removed clarity shortcuts (bad idea, code bloat)
+ version 0.4
Tue Dec 4 07:05:27 PST 2007
+ added version check to _read_line workaround for SSL-related bug in Mail::IMAPClient version 2.2.9 ; newer versions fixed the bug
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.1
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.4.2
Mon Jan 7 21:35:23 PST 2008
+ changed version check for Mail::IMAPClient version 2.2.9 to use string comparison le "2.2.9"
+ fixed bug where script was dying on socket->autoflush when socket does not exist because autoflush was being called before checking the socket object
+ version 0.4.3
Mon Feb 11 19:13:38 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.4.4
Mon May 26 08:33:27 PDT 2008
+ fixed a bug for number captured, it now reflects number of messages captured instead of always returning "1"
+ added --capture-min option to complement --capture-max
+ added --search-critical-min to trigger a CRITICAL alert if number of messages found is less than argument, with default 1.
+ fixed warning and critical messages to use "more than" or "less than" instead of the angle brackets, to make them more web friendly
+ version 0.5
Wed Jul 2 14:59:05 PDT 2008
+ fixed a bug for not finding a message after the first try, by reselecting the mailbox before each search
+ version 0.5.1
Sat Dec 13 08:57:29 PST 2008
+ added --download option to allow local searching of messages (useful if your server has an index that handles searching but it takes a while before new emails show up and you want immediate results), supports only the TEXT, BODY, SUBJECT, and HEADER search keys
+ added --download-max option to set a limit on number of messages downloaded with --download
+ version 0.6.0
Wed Sep 30 23:25:33 PDT 2009
+ fixed --download-max option (was incorrectly looking for --download_max). currently both will work, in the future only --download-max will work
+ added --template option to allow arbitrary substitutions for search parameters, and provided three convenience functions for working with dates
+ added date search criteria to the --download option: SENTBEFORE, SENTON, and SENTSINCE which check the Date header and allow hours and minutes in addition to dates (whereas the IMAP standard only allows dates)
+ added --search-critical-max to trigger a CRITICAL alert if number of messages found is more than argument, disabled by default.
+ fixed a bug in --download --search where messages would match even though they failed the search criteria
+ changed behavior of --download-max to look at the most recent messages first (hopefully); the IMAP protocol doesn't guarantee the order that the messages are returned but I observed that many mail servers return them in chronological order; so now --download-max reverses the order to look at the newer messages first
+ added performance data for use with PNP4Nagios!
+ version 0.7.0
Fri Oct 2 15:22:00 PDT 2009
+ added --search-warning-max and --search-warning-min to trigger a WARNING alert if number of messages is more than or less than the specified number.
+ fixed --download option not to fail with CRITICAL if mailbox is empty; now this can be configured with --search-warning-min or --search-critical-min
+ version 0.7.1
Sat Nov 21 18:27:17 PST 2009
+ fixed problem with using --download option on certain mail servers by turning on the IgnoreSizeErrors feature in IMAPClient
+ added --peek option to prevent marking messages as seen
+ version 0.7.2
Tue Jan 5 12:13:53 PST 2010
+ added error message and exit with unknown status when an unrecognized IMAP search criteria is encountered by the --download --search option
Wed May 5 11:14:51 PDT 2010
+ added mailbox list when mailbox is not found and verbose level 3 is on (-vvv)
+ version 0.7.3
Tue Mar 8 18:58:14 AST 2011
+ updated documentation for --search and --template to mention rfc5032 extensions (thanks to Stuart Henderson)
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.4
Fri Nov 11 01:51:40 AST 2011
+ added --ssl-ca-file option to allow verifying the server certificate against a local .pem file (thanks to Alexandre Bezroutchko)
+ added imap_ssl_cert.pl utility (not in this file) to conveniently save the server's SSL certificates into a local .pem file
+ version 0.7.5
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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#!/usr/bin/perl
use strict;
my $VERSION = '0.7.5';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Mail::IMAPClient/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $username = "";
my $password = "";
my $mailbox = "INBOX";
my @search = ();
my $search_critical_min = 1;
my $search_critical_max = -1; # -1 means disabled for this option
my $search_warning_min = 1;
my $search_warning_max = -1; # -1 means disabled for this option
my $capture_max = "";
my $capture_min = "";
my $delete = 1;
my $no_delete_captured = "";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $interval = 5;
my $max_retries = 10;
my $download = "";
my $download_max = "";
my $peek = "";
my $template = "";
my $ssl = 0;
my $ssl_ca_file = "";
my $tls = 0;
my $time_hires = "";
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
"U|username=s"=>\$username,"P|password=s"=>\$password, "m|mailbox=s"=>\$mailbox,
"imap-check-interval=i"=>\$interval,"imap-retries=i"=>\$max_retries,
"ssl!"=>\$ssl, "ssl-ca-file=s"=>\$ssl_ca_file, "tls!"=>\$tls,
# search settings
"s|search=s"=>\@search,
"search-critical-min=i"=>\$search_critical_min, "search-critical-max=i"=>\$search_critical_max,
"search-warning-min=i"=>\$search_warning_min, "search-warning-max=i"=>\$search_warning_max,
"capture-max=s"=>\$capture_max, "capture-min=s"=>\$capture_min,
"delete!"=>\$delete, "nodelete-captured"=>\$no_delete_captured,
"download!"=>\$download, "download_max=i"=>\$download_max, "download-max=i"=>\$download_max,
"peek!"=>\$peek,
"template!"=>\$template,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
my @required_module = ();
push @required_module, 'IO::Socket::SSL' if $ssl || $tls;
push @required_module, 'Email::Simple' if $download;
push @required_module, ('Text::Template','Date::Manip') if $template;
exit $status{UNKNOWN} unless load_modules(@required_module);
if( $help_usage
||
( $imap_server eq "" || $username eq "" || $password eq "" || scalar(@search)==0 )
) {
print "Usage: $0 -H host [-p port] -U username -P password -s HEADER -s X-Nagios -s 'ID: 1234.' [-w <seconds>] [-c <seconds>] [--imap-check-interval <seconds>] [--imap-retries <tries>]\n";
exit $status{UNKNOWN};
}
# before attempting to connect to the server, check if any of the search parameters
# use substitution functions and make sure we can parse them first. if we can't we
# need to abort since the search will be meaningless.
if( $template ) {
foreach my $token (@search) {
my $t = Text::Template->new(TYPE=>'STRING',SOURCE=>$token,PACKAGE=>'ImapSearchTemplate');
$token = $t->fill_in(PREPEND=>q{package ImapSearchTemplate;});
#print "token: $token\n";
}
}
# initialize
my $report = new PluginReport;
my $time_start = time;
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
if( $ssl || $tls ) {
$imap_port = $default_imap_ssl_port unless $imap_port;
my %ssl_args = ();
if( length($ssl_ca_file) > 0 ) {
$ssl_args{SSL_verify_mode} = 1;
$ssl_args{SSL_ca_file} = $ssl_ca_file;
$ssl_args{SSL_verifycn_scheme} = 'imap';
$ssl_args{SSL_verifycn_name} = $imap_server;
}
my $socket = IO::Socket::SSL->new(PeerAddr=>"$imap_server:$imap_port", %ssl_args);
die IO::Socket::SSL::errstr() . " (if you get this only when using both --ssl and --ssl-ca-file, but not when using just --ssl, the server SSL certificate failed validation)" unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
$imap->User($username);
$imap->Password($password);
$imap->login() or die "Cannot login: $@";
}
else {
$imap_port = $default_imap_port unless $imap_port;
$imap = Mail::IMAPClient->new(Debug => 0 );
$imap->Server("$imap_server:$imap_port");
$imap->User($username);
$imap->Password($password);
$imap->connect() or die "$@";
}
$imap->Peek(1) if $peek;
$imap->Ignoresizeerrors(1);
alarm 0;
};
if( $@ ) {
chomp $@;
print "IMAP RECEIVE CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "IMAP RECEIVE CRITICAL - Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
my $time_connected = time;
# select a mailbox
print "selecting mailbox $mailbox\n" if $verbose > 2;
unless( $imap->select($mailbox) ) {
print "IMAP RECEIVE CRITICAL - Could not select $mailbox: $@ $!\n";
if( $verbose > 2 ) {
print "Mailbox list:\n" . join("\n", $imap->folders) . "\n";
print "Mailbox separator: " . $imap->separator . "\n";
##print "Special mailboxes:\n" . join("\n", map { "$_ => ".
}
$imap->logout();
exit $status{CRITICAL};
}
# search for messages
my $tries = 0;
my @msgs;
until( scalar(@msgs) != 0 || $tries >= $max_retries ) {
eval {
$imap->select( $mailbox );
# if download flag is on, we download recent messages and search ourselves
if( $download ) {
print "downloading messages to search\n" if $verbose > 2;
@msgs = download_and_search($imap,@search);
}
else {
print "searching on server\n" if $verbose > 2;
@msgs = $imap->search(@search);
die "Invalid search parameters: $@" if $@;
}
};
if( $@ ) {
chomp $@;
print "Cannot search messages: $@\n";
$imap->close();
$imap->logout();
exit $status{UNKNOWN};
}
$report->{found} = scalar(@msgs);
$tries++;
sleep $interval unless (scalar(@msgs) != 0 || $tries >= $max_retries);
}
sub download_and_search {
my ($imap,@search) = @_;
my $ims = new ImapMessageSearch;
$ims->querytokens(@search);
my @found = ();
@msgs = reverse $imap->messages or (); # die "Cannot list messages: $@\n"; # reversing to get descending order, which is most recent messages first! (at least on my mail servers)
@msgs = @msgs[0..$download_max-1] if $download_max && scalar(@msgs) > $download_max;
foreach my $m (@msgs) {
my $message = $imap->message_string($m);
push @found, $m if $ims->match($message);
}
return @found;
}
# capture data in messages
my $captured_max_id = "";
my $captured_min_id = "";
if( $capture_max || $capture_min ) {
my $max = undef;
my $min = undef;
my %captured = ();
for (my $i=0;$i < scalar(@msgs); $i++) {
my $message = $imap->message_string($msgs[$i]);
if( $message =~ m/$capture_max/ ) {
if( !defined($max) || $1 > $max ) {
$captured{ $i } = 1;
$max = $1;
$captured_max_id = $msgs[$i];
}
}
if( $message =~ m/$capture_min/ ) {
if( !defined($min) || $1 < $min ) {
$captured{ $i } = 1;
$min = $1;
$captured_min_id = $msgs[$i];
}
}
print $message if $verbose > 1;
}
$report->{captured} = scalar keys %captured;
$report->{max} = $max if defined $max;
$report->{min} = $min if defined $min;
}
# delete messages
if( $delete ) {
print "deleting matching messages\n" if $verbose > 2;
my $deleted = 0;
for (my $i=0;$i < scalar(@msgs); $i++) {
next if ($no_delete_captured && ($captured_max_id eq $msgs[$i]));
next if ($no_delete_captured && ($captured_min_id eq $msgs[$i]));
$imap->delete_message($msgs[$i]);
$deleted++;
}
$report->{deleted} = $deleted;
$imap->expunge() if $deleted;
}
# deselect the mailbox
$imap->close();
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
$report->{found} = 0 unless defined $report->{found};
$report->{captured} = 0 unless defined $report->{captured};
my @warning = ();
my @critical = ();
push @warning, "found less than $search_warning_min" if( scalar(@msgs) < $search_warning_min );
push @warning, "found more than $search_warning_max" if ( $search_warning_max > -1 && scalar(@msgs) > $search_warning_max );
push @critical, "found less than $search_critical_min" if ( scalar(@msgs) < $search_critical_min );
push @critical, "found more than $search_critical_max" if ( $search_critical_max > -1 && scalar(@msgs) > $search_critical_max );
push @warning, "connection time more than $warntime" if( $time_connected - $time_start > $warntime );
push @critical, "connection time more than $criticaltime" if( $time_connected - $time_start > $criticaltime );
# print report and exit with known status
my $perf_data = "elapsed=".$report->{seconds}."s found=".$report->{found}."messages captured=".$report->{captured}."messages"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6 and http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN185
my $short_report = $report->text(qw/seconds found captured max min deleted/) . " | $perf_data";
if( scalar @critical ) {
my $crit_alerts = join(", ", @critical);
print "IMAP RECEIVE CRITICAL - $crit_alerts; $short_report\n";
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $warn_alerts = join(", ", @warning);
print "IMAP RECEIVE WARNING - $warn_alerts; $short_report\n";
exit $status{WARNING};
}
print "IMAP RECEIVE OK - $short_report\n";
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package ImapMessageSearch;
require Email::Simple;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{querystring} = [];
$self->{querytokens} = [];
$self->{queryfnlist} = [];
$self->{mimemessage} = undef;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub querystring {
my ($self,$string) = @_;
$self->{querystring} = $string;
return $self->querytokens( parseimapsearch($string) );
}
sub querytokens {
my ($self,@tokens) = @_;
$self->{querytokens} = [@tokens];
$self->{queryfnlist} = [create_search_expressions(@tokens)];
return $self;
}
sub match {
my ($self,$message_string) = @_;
return 0 unless defined $message_string;
my $message_mime = Email::Simple->new($message_string);
return $self->matchmime($message_mime);
}
sub matchmime {
my ($self,$message_mime) = @_;
my $match = 1;
foreach my $x (@{$self->{queryfnlist}}) {
$match = $match && $x->($message_mime);
}
return $match;
}
# this should probably become its own Perl module... see also Net::IMAP::Server::Command::Search
sub create_search_expressions {
my (@search) = @_;
return () unless scalar(@search);
my $token = shift @search;
if( $token eq 'TEXT' ) {
my $value = shift @search;
return (sub {shift->as_string =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'BODY' ) {
my $value = shift @search;
return (sub {shift->body =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'SUBJECT' ) {
my $value = shift @search;
return (sub {shift->header('Subject') =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'HEADER' ) {
my $name = shift @search;
my $value = shift @search;
return (sub {shift->header($name) =~ /\Q$value\E/i},create_search_expressions(@search));
}
if( $token eq 'NOT' ) {
my @exp = create_search_expressions(@search);
my $next = shift @exp;
return (sub { ! $next->(@_) }, @exp);
}
if( $token eq 'OR' ) {
my @exp = create_search_expressions(@search);
my $next1 = shift @exp;
my $next2 = shift @exp;
return (sub { $next1->(@_) or $next2->(@_) }, @exp);
}
if( $token eq 'SENTBEFORE' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) < 0},create_search_expressions(@search));
}
if( $token eq 'SENTON' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) == 0},create_search_expressions(@search));
}
if( $token eq 'SENTSINCE' ) {
my $value = shift @search;
return (sub {datecmp(shift->header('Date'),$value) > 0},create_search_expressions(@search));
}
return sub { die "invalid search parameter: $token" };
}
sub datecmp {
my ($date1,$date2) = @_;
my $parsed1 = Date::Manip::ParseDate($date1);
my $parsed2 = Date::Manip::ParseDate($date2);
my $cmp = Date::Manip::Date_Cmp($parsed1,$parsed2);
print " $date1 <=> $date2 -> $cmp\n";
return $cmp <=> 0;
}
package ImapSearchTemplate;
# Takes an English date specification ("now", etc) and an optional offset ("-4 hours")
# and returns an RFC 2822 formatted date string.
# see http://search.cpan.org/dist/Date-Manip/lib/Date/Manip.pod
sub rfc2822dateHeader {
my ($when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, "%a, %d %b %Y %H:%M:%S %z");
}
sub rfc2822date {
my ($when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, "%d-%b-%Y");
}
# alias for 2822 ... RFC 822 is an older version and specifies 2-digit years, but we ignore that for now.
sub rfc822dateHeader { return rfc2822dateHeader(@_); }
sub rfc822date { return rfc2822date(@_); }
sub date {
my ($format,$when,$delta) = @_;
$when = Date::Manip::ParseDate($when);
$delta = Date::Manip::ParseDateDelta($delta) if $delta;
my $d = $delta ? Date::Manip::DateCalc($when,$delta) : $when;
return Date::Manip::UnixDate($d, $format);
}
package main;
1;

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#!/usr/bin/perl
use strict;
use POSIX qw(strftime);
my $VERSION = '0.7.3';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Net::SMTP/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $smtp_server = "";
my $default_smtp_port = "25";
my $default_smtp_ssl_port = "465";
my $default_smtp_tls_port = "587";
my $smtp_port = "";
my @mailto = ();
my $mailfrom = "";
my @header = ();
my $body = "";
my $stdin = "";
my $template = "";
my $expect_response = "250";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $tls = 0;
my $ssl = 0;
my $auth_method = undef;
my $username = "";
my $password = "";
my $time_hires = "";
my $mx_lookup = 0;
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# smtp settings
"H|hostname=s"=>\$smtp_server,"p|port=i"=>\$smtp_port,
"mailto=s"=>\@mailto, "mailfrom=s",\$mailfrom,
"header=s"=>\@header, "body=s"=>\$body, "stdin"=>\$stdin,
"template!"=>\$template,
# SSL/TLS/auth options
"tls!"=>\$tls, "ssl!"=>\$ssl, "auth=s"=>\$auth_method,
"U|username=s"=>\$username,"P|password=s"=>\$password,
# Server response
"E|expect-response=s"=>\$expect_response,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $smtp_server eq "" && scalar(@mailto) == 1 ) {
# no SMTP server specified but one mailto address given means we can look up the MX record
$mx_lookup = 1;
}
my @required_module = ();
push @required_module, 'Net::SMTP::SSL' if $ssl;
push @required_module, ('MIME::Base64','Authen::SASL') if $ssl && $username;
push @required_module, 'Net::SMTP::TLS' if $tls;
push @required_module, 'Net::SMTP_auth' if $auth_method and not $tls; # whereas if auth_method and tls we use TLS_auth, which is included in this script!
push @required_module, 'Text::Template' if $template;
push @required_module, 'Net::DNS' if $mx_lookup;
push @required_module, 'Email::Address' if $mx_lookup;
exit $status{UNKNOWN} unless load_modules(@required_module);
# split up @mailto if commas were used instead of multiple options
@mailto = split(/,/,join(',',@mailto));
if( $help_usage ||
(
($smtp_server eq "" && !$mx_lookup) || scalar(@mailto)==0 || $mailfrom eq ""
)
) {
print "Usage: $0 [-H host [-p port]] --mailto recipient\@your.net [--mailto recipient2\@your.net ...] --mailfrom sender\@your.net --body 'some text' [-w <seconds>] [-c <seconds>]\n";
exit $status{UNKNOWN};
}
# initialize
my $report = new PluginReport;
my $time_start = time;
my $actual_response = undef;
my @warning = ();
my @critical = ();
my $smtp_debug = 0;
$smtp_debug = 1 if $verbose >= 3;
# default date and message id headers
push @header, default_date_header() unless find_header("Date",@header);
push @header, default_messageid_header() unless find_header("Message-ID",@header);
# look up MX server if necessary
if( $mx_lookup ) {
my $addr = Email::Address->new( undef, $mailto[0] );
my $mx_domain = $addr->host;
print "MX lookup " . $mx_domain . "\n" if $verbose > 1;
my $res = Net::DNS::Resolver->new;
my @mx = Net::DNS::mx($res, $mx_domain);
if( @mx ) {
# use the first server
foreach my $rr (@mx) {
print "pref : " . $rr->preference . " exchange: " . $rr->exchange . "\n" if $verbose > 2;
}
$smtp_server = $mx[0]->exchange;
print "smtp server: $smtp_server\n" if $verbose;
}
else {
print "SMTP SEND CRITICAL - Cannot find MX records for $mx_domain\n";
exit $status{CRITICAL};
}
}
# connect to SMTP server
# create the smtp handle using Net::SMTP, Net::SMTP::SSL, Net::SMTP::TLS, or an authentication variant
my $smtp;
eval {
if( $tls and $auth_method ) {
$smtp_port = $default_smtp_tls_port unless $smtp_port;
$smtp = TLS_auth->new($smtp_server, Timeout=>$timeout, Port=>$smtp_port, User=>$username, Password=>$password, Auth_Method=>$auth_method);
if( $smtp ) {
my $message = oneline($smtp->message());
die "cannot connect with TLS/$auth_method: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $tls ) {
$smtp_port = $default_smtp_tls_port unless $smtp_port;
$smtp = Net::SMTP::TLS->new($smtp_server, Timeout=>$timeout, Port=>$smtp_port, User=>$username, Password=>$password);
if( $smtp ) {
my $message = oneline($smtp->message());
die "cannot connect with TLS: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $ssl ) {
$smtp_port = $default_smtp_ssl_port unless $smtp_port;
$smtp = Net::SMTP::SSL->new($smtp_server, Port => $smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp && $username ) {
$smtp->auth($username, $password);
my $message = oneline($smtp->message());
die "cannot connect with SSL/password: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $auth_method ) {
$smtp_port = $default_smtp_port unless $smtp_port;
$smtp = Net::SMTP_auth->new($smtp_server, Port=>$smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp ) {
$smtp->auth($auth_method, $username, $password);
my $message = oneline($smtp->message());
die "cannot connect with SSL/$auth_method: $message" if $smtp->code() =~ m/53\d/;
}
}
else {
$smtp_port = $default_smtp_port unless $smtp_port;
$smtp = Net::SMTP->new($smtp_server, Port=>$smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp && $username ) {
$smtp->auth($username, $password);
my $message = oneline($smtp->message());
die "cannot connect with password: $message" if $smtp->code() =~ m/53\d/;
}
}
};
if( $@ ) {
$@ =~ s/\n/ /g; # the error message can be multiline but we want our output to be just one line
print "SMTP SEND CRITICAL - $@\n";
exit $status{CRITICAL};
}
unless( $smtp ) {
print "SMTP SEND CRITICAL - Could not connect to $smtp_server port $smtp_port\n";
exit $status{CRITICAL};
}
my $time_connected = time;
# add the monitored server's banner to the report
if( $tls ) {
$report->{banner} = "";
}
elsif( $ssl ) {
$report->{banner} = $smtp->banner || "";
chomp $report->{banner};
}
else {
$report->{banner} = $smtp->banner || "";
chomp $report->{banner};
}
# send email
if( $stdin ) {
$body = "";
while(<STDIN>) {
$body .= $_;
}
}
# if user wants to use template substitutions, this is the place to process body and headers
if( $template ) {
foreach my $item (@header,$body) {
my $t = Text::Template->new(TYPE=>'STRING',SOURCE=>$item,PACKAGE=>'SmtpMessageTemplate');
$item = $t->fill_in(PREPEND=>q{package SmtpMessageTemplate;});
# print "item: $item\n";
}
}
$smtp->mail($mailfrom);
foreach( @mailto ) {
# the two SMTP modules have different error reporting mechanisms:
if( $tls ) {
# Net::SMTP::TLS croaks when the recipient is rejected
eval {
$smtp->to($_);
};
if( $@ ) {
print "SMTP SEND CRITICAL - Could not send to $_\n";
print "Reason: $@\n" if $verbose;
exit $status{CRITICAL};
}
}
else {
# Net::SMTP returns false when the recipient is rejected
my $to_returned = $smtp->to($_);
if( !$to_returned ) {
print "SMTP SEND CRITICAL - Could not send to $_\n";
print "Reason: Recipient rejected or authentication failed\n" if $verbose;
exit $status{CRITICAL};
}
}
}
# Net::SMTP::TLS doesn't implement code() so we need to wrap calls in eval to get our error messages
# start data transfer (expect response 354)
$smtp->data();
# send data
$smtp->datasend("To: ".join(", ",@mailto)."\n");
$smtp->datasend("From: $mailfrom\n");
foreach( @header ) {
$smtp->datasend("$_\n");
}
$smtp->datasend("\n");
$smtp->datasend($body);
$smtp->datasend("\n");
eval {
# end data transfer (expect response 250)
$smtp->dataend();
};
if( $@ ) {
$actual_response = $tls ? get_tls_error($@) : $smtp->code();
}
else {
$actual_response = $tls ? "250" : $smtp->code(); # no error means we got 250
}
eval {
# disconnect from SMTP server (expect response 221)
$smtp->quit();
};
if( $@ ) {
push @warning, "Error while disconnecting from $smtp_server";
}
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
push @warning, "connection time more than $warntime" if( $time_connected - $time_start > $warntime );
push @critical, "connection time more than $criticaltime" if( $time_connected - $time_start > $criticaltime );
push @critical, "response was $actual_response but expected $expect_response" if ( $actual_response ne $expect_response );
# print report and exit with known status
my $perf_data = "elapsed=".$report->{seconds}."s;$warntime;$criticaltime"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6 and http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN185
my $short_report = $report->text(qw/seconds/) . " | $perf_data";
my $long_report = join("", map { "$_: $report->{$_}\n" } qw/banner/ );
if( scalar @critical ) {
my $crit_alerts = join(", ", @critical);
print "SMTP SEND CRITICAL - $crit_alerts; $short_report\n";
print $long_report if $verbose;
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $warn_alerts = join(", ", @warning);
print "SMTP SEND WARNING - $warn_alerts; $short_report\n";
print $long_report if $verbose;
exit $status{WARNING};
}
print "SMTP SEND OK - $short_report\n";
print $long_report if $verbose;
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# utility to extract error codes out of Net::SMTP::TLS croak messages
sub get_tls_error {
my ($errormsg) = @_;
$errormsg =~ m/: (\d+) (.+)/;
my $code = $1;
return $code;
}
# looks for a specific header in a list of headers; returns true if found
sub find_header {
my ($name, @list) = @_;
return scalar grep { m/^$name: /i } @list;
}
# RFC 2822 date header
sub default_date_header {
return strftime "Date: %a, %e %b %Y %H:%M:%S %z (%Z)", gmtime;
}
# RFC 2822 message id header
sub default_messageid_header {
my $random = randomstring(16,qw/0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z/);
my $hostname = `hostname`;
chomp $hostname;
return "Message-ID: <".time.".".$random.".checksmtpsend@".$hostname.">";
}
# returns a random string of specified length using characters from specified set
sub randomstring {
my ($length,@set) = @_;
my $size = scalar @set;
my $string = "";
while($length--) {
$string .= $set[int(rand($size))];
}
return $string;
}
# replaces all newlines in the input string with spaces
sub oneline {
my ($input) = @_;
$input =~ s/[\r\n]+/ /g;
return $input;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package SmtpMessageTemplate;
sub trim {
my ($text) = @_;
$text =~ s/^\s*//;
$text =~ s/\s*$//;
return $text;
}
# NAME
# TLS_auth
# SYNOPSYS
#
# Based on contribution by Brad Guillory
package TLS_auth;
#use Net::SMTP::TLS;
our @ISA = qw(Net::SMTP::TLS);
use Carp;
sub new {
my ($proto,$server,%p) = @_;
my $class = ref($proto) || $proto;
#my $self = bless {}, $class;
no strict 'refs';
no warnings 'once';
*Net::SMTP::TLS::login = *TLS_auth::login; # override parent's login with ours so when it's called in the constructor, our overriden version will be used
my $self = Net::SMTP::TLS->new($server,%p);
return $self;
}
sub login {
my ($self) = @_;
my $type = $self->{features}->{AUTH};
if(not $type){
die "Server did not return AUTH in capabilities\n"; # croak
}
# print "Feature: $type\nAuth Method: $self->{Auth_Method}\n";
if($type =~ /CRAM\-MD5/ and $self->{Auth_Method} =~ /CRAM\-MD5/i){
$self->auth_MD5();
}elsif($type =~ /LOGIN/ and $self->{Auth_Method} =~ /LOGIN/i){
$self->auth_LOGIN();
}elsif($type =~ /PLAIN/ and $self->{Auth_Method} =~ /PLAIN/i){
#print "Calling auth_PLAIN\n";
$self->auth_PLAIN();
}else{
die "Unsupported Authentication mechanism: $self->{Auth_Method}\n"; # croak
}
}
package main;
1;
__END__
=pod
=head1 NAME
check_smtp_send - connects to an SMTP server and sends a message
=head1 SYNOPSIS
check_smtp_send -vV
check_smtp_send -?
check_smtp_send --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the SMTP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the SMTP server. Default is 30 seconds.
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the SMTP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the SMTP server. Examples: mail.server.com, localhost, 192.168.1.100
If not provided, and if there is only one --mailto address, the script will automatically look up the MX record
for the --mailto address and use that as the hostname. You can use this to check that your MX records are correct.
When omitting the --hostname option, it doesn't really make sense to specify --port, --username, or --password
but you can still do so and they will have their normal effect. To look up the MX records you need to have the
module Net::DNS and Email::Address installed.
Also known as: -H <server>
=item --port <number>
Service port on the SMTP server. Default is 25 for regular SMTP, 465 for SSL, and 587 for TLS.
Also known as: -p <number>
=item --tls
=item --notls
Enable TLS/AUTH protocol. Requires Net::SMTP::TLS, availble on CPAN.
When using this option, the default port is 587.
You can specify a port from the command line using the --port option.
Use the notls option to turn off the tls option.
Also, you may need to fix your copy of Net::SMTP::TLS. Here is the diff against version 0.12:
254c254
< $me->_command(sprintf("AUTH PLAIN %S",
---
> $me->_command(sprintf("AUTH PLAIN %s",
=item --ssl
=item --nossl
Enable SSL protocol. Requires Net::SMTP::SSL and Authen::SASL, availble on CPAN.
When using this option, the default port is 465. You can override with the --port option.
Use the nossl option to turn off the ssl option.
=item --auth <method>
Enable authentication with Net::SMTP_auth (sold separately).
For example, try using --auth PLAIN or --auth CRAM-MD5.
=item --username <username>
=item --password <password>
Username and password to use when connecting to SMTP server.
Also known as: -U <username> -P <password>
=item --body <message>
Use this option to specify the body of the email message. If you need newlines in your message,
you might need to use the --stdin option instead.
=item --header <header>
Use this option to set an arbitrary header in the message. You can use it multiple times.
=item --stdin
Grab the body of the email message from stdin.
=item --mailto recipient@your.net
You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):
$ check_smtp_send -H mail.server.net --mailto recipient@your.net,recipient2@your.net --mailfrom sender@your.net
SMTP SEND OK - 1 seconds
=item --mailfrom sender@your.net
Use this option to set the "from" address in the email.
=item --template
=item --notemplate
Enable (or disable) processing of message body and headers. Requires Text::Template.
Use this option to apply special processing to your message body and headers that allows you to use the
results of arbitrary computations in the text. For example, you can use this feature to send a message
containing the hostname of the machine that sent the message without customizing the plugin configuration
on each machine.
When you enable the --template option, the message body and headers are parsed by
Text::Template. Even a message body provided using the --stdin option will be parsed.
See the Text::Template manual for more information, but in general any expression
written in Perl will work.
There is one convenience function provided to you, trim, which will remove leading and trailing whitespace
from its parameter. Here's an example:
check_smtp_send -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--template --body 'hello, this message is from {use Sys::Hostname; hostname}'
--header 'Subject: test message from {trim(`whoami`)}'
=item --expect-response <code>
Use this option to specify which SMTP response code should be expected from the server
after the SMTP dialog is complete. The default is 250 (message accepted).
Also known as: -E <code>
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting.
One --verbose will show extra information for OK, WARNING, and CRITICAL status.
Use one --verbose together with --version to see the default warning and critical timeout values.
Three --verbose (or -vvv) will show debug information, unless you're using --tls because Net::SMTP::TLS
does not have a Debug feature.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Send a message with custom headers
$ check_smtp_send -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--body 'Homeruns 5' --header 'Subject: Hello, world!' --header 'X-Your-Header: Yes'
SMTP SEND OK - 1 seconds
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 CHANGES
Wed Oct 29 14:05:00 PST 2005
+ version 0.1
Wed Nov 9 15:01:48 PST 2005
+ now using an inline PluginReport package to generate the report
+ added stdin option
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton <geoff.crompton@strategicdata.com.au>)
+ added bailing if the $smtp->to() call fails
+ added support for mailto recipients separated by commas
+ version 0.2.1
Tue Apr 24 21:17:53 PDT 2007
+ moved POD text to separate file in order to accomodate the new embedded-perl Nagios feature
+ version 0.2.3
Fri Apr 27 20:26:42 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ version 0.3
Sun Oct 21 10:34:14 PDT 2007
+ added support for TLS and authentication via the Net::SMTP::TLS module. see --tls option.
+ version 0.4
Sun Oct 21 13:54:26 PDT 2007
+ added support for SSL via the Net::SMTP::SSL module. see --ssl option.
+ port is no longer a required option. defaults to 25 for regular smtp, 465 for ssl, and 587 for tls.
+ added port info to the "could not connect" error message
+ version 0.4.1
Tue Dec 4 07:42:32 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.2
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.4.3
Mon May 26 09:12:14 PDT 2008
+ fixed warning and critical messages to use "more than" or "less than" instead of the angle brackets, to make them more web friendly
+ version 0.4.4
Wed Jul 2 07:12:35 PDT 2008
+ added --expect-response option submitted by Christian Kauhaus <kc@gocept.com>
+ added support for authentication via Net::SMTP_auth. see --auth option.
+ version 0.4.5
Sun Oct 5 15:18:23 PDT 2008
+ added error handling for smtp server disconnects ungracefully during QUIT (gmail.com does)
+ version 0.4.6
Thu Oct 1 12:09:35 PDT 2009
+ added --template option to allow arbitrary substitutions for body and headers, and provided one convenience function for trimming strings
+ added performance data for use with PNP4Nagios!
+ version 0.5.0
Thu Oct 8 11:17:04 PDT 2009
+ added more detailed error messages when using --verbose
+ version 0.5.1
Tue Feb 9 12:14:49 PST 2010
+ added support for combining --auth with --tls using a subclass of Net::SMTP::TLS submitted by Brad Guillory; please note that to use the "PLAIN" authentication type you need to patch your Net::SMTP:TLS because it has a bug in sub auth_PLAIN (sprintf %S instead of %s)
+ version 0.5.2
Mon Jan 3 10:39:42 PST 2011
+ added default Date and Message-ID headers; Date header uses POSIX strftime and Message-ID header uses hostname command to get localhost name
+ version 0.7.0
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1
Wed Jul 6 19:18:26 AST 2011
+ the --hostname is now optional; if not provided the plugin will lookup the MX record for the --mailto address (requires Net::DNS)
+ version 0.7.2
Tue Dec 13 09:24:04 PST 2011
+ separated authentication errors from connection errors
+ version 0.7.3
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

458
check_email_delivery/check_email_delivery-0.7.1b/check_smtp_send_epn 100755
View File

@ -0,0 +1,458 @@
#!/usr/bin/perl
use strict;
use POSIX qw(strftime);
my $VERSION = '0.7.3';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
# look for required modules
exit $status{UNKNOWN} unless load_modules(qw/Getopt::Long Net::SMTP/);
BEGIN {
if( grep { /^--hires$/ } @ARGV ) {
eval "use Time::HiRes qw(time);";
warn "Time::HiRes not installed\n" if $@;
}
}
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $smtp_server = "";
my $default_smtp_port = "25";
my $default_smtp_ssl_port = "465";
my $default_smtp_tls_port = "587";
my $smtp_port = "";
my @mailto = ();
my $mailfrom = "";
my @header = ();
my $body = "";
my $stdin = "";
my $template = "";
my $expect_response = "250";
my $warntime = 15;
my $criticaltime = 30;
my $timeout = 60;
my $tls = 0;
my $ssl = 0;
my $auth_method = undef;
my $username = "";
my $password = "";
my $time_hires = "";
my $mx_lookup = 0;
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
"w|warning=i"=>\$warntime,"c|critical=i"=>\$criticaltime,"t|timeout=i"=>\$timeout,
# smtp settings
"H|hostname=s"=>\$smtp_server,"p|port=i"=>\$smtp_port,
"mailto=s"=>\@mailto, "mailfrom=s",\$mailfrom,
"header=s"=>\@header, "body=s"=>\$body, "stdin"=>\$stdin,
"template!"=>\$template,
# SSL/TLS/auth options
"tls!"=>\$tls, "ssl!"=>\$ssl, "auth=s"=>\$auth_method,
"U|username=s"=>\$username,"P|password=s"=>\$password,
# Server response
"E|expect-response=s"=>\$expect_response,
# Time
"hires"=>\$time_hires,
);
if( $show_version ) {
print "$VERSION\n";
if( $verbose ) {
print "Default warning threshold: $warntime seconds\n";
print "Default critical threshold: $criticaltime seconds\n";
print "Default timeout: $timeout seconds\n";
}
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $smtp_server eq "" && scalar(@mailto) == 1 ) {
# no SMTP server specified but one mailto address given means we can look up the MX record
$mx_lookup = 1;
}
my @required_module = ();
push @required_module, 'Net::SMTP::SSL' if $ssl;
push @required_module, ('MIME::Base64','Authen::SASL') if $ssl && $username;
push @required_module, 'Net::SMTP::TLS' if $tls;
push @required_module, 'Net::SMTP_auth' if $auth_method and not $tls; # whereas if auth_method and tls we use TLS_auth, which is included in this script!
push @required_module, 'Text::Template' if $template;
push @required_module, 'Net::DNS' if $mx_lookup;
push @required_module, 'Email::Address' if $mx_lookup;
exit $status{UNKNOWN} unless load_modules(@required_module);
# split up @mailto if commas were used instead of multiple options
@mailto = split(/,/,join(',',@mailto));
if( $help_usage ||
(
($smtp_server eq "" && !$mx_lookup) || scalar(@mailto)==0 || $mailfrom eq ""
)
) {
print "Usage: $0 [-H host [-p port]] --mailto recipient\@your.net [--mailto recipient2\@your.net ...] --mailfrom sender\@your.net --body 'some text' [-w <seconds>] [-c <seconds>]\n";
exit $status{UNKNOWN};
}
# initialize
my $report = new PluginReport;
my $time_start = time;
my $actual_response = undef;
my @warning = ();
my @critical = ();
my $smtp_debug = 0;
$smtp_debug = 1 if $verbose >= 3;
# default date and message id headers
push @header, default_date_header() unless find_header("Date",@header);
push @header, default_messageid_header() unless find_header("Message-ID",@header);
# look up MX server if necessary
if( $mx_lookup ) {
my $addr = Email::Address->new( undef, $mailto[0] );
my $mx_domain = $addr->host;
print "MX lookup " . $mx_domain . "\n" if $verbose > 1;
my $res = Net::DNS::Resolver->new;
my @mx = Net::DNS::mx($res, $mx_domain);
if( @mx ) {
# use the first server
foreach my $rr (@mx) {
print "pref : " . $rr->preference . " exchange: " . $rr->exchange . "\n" if $verbose > 2;
}
$smtp_server = $mx[0]->exchange;
print "smtp server: $smtp_server\n" if $verbose;
}
else {
print "SMTP SEND CRITICAL - Cannot find MX records for $mx_domain\n";
exit $status{CRITICAL};
}
}
# connect to SMTP server
# create the smtp handle using Net::SMTP, Net::SMTP::SSL, Net::SMTP::TLS, or an authentication variant
my $smtp;
eval {
if( $tls and $auth_method ) {
$smtp_port = $default_smtp_tls_port unless $smtp_port;
$smtp = TLS_auth->new($smtp_server, Timeout=>$timeout, Port=>$smtp_port, User=>$username, Password=>$password, Auth_Method=>$auth_method);
if( $smtp ) {
my $message = oneline($smtp->message());
die "cannot connect with TLS/$auth_method: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $tls ) {
$smtp_port = $default_smtp_tls_port unless $smtp_port;
$smtp = Net::SMTP::TLS->new($smtp_server, Timeout=>$timeout, Port=>$smtp_port, User=>$username, Password=>$password);
if( $smtp ) {
my $message = oneline($smtp->message());
die "cannot connect with TLS: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $ssl ) {
$smtp_port = $default_smtp_ssl_port unless $smtp_port;
$smtp = Net::SMTP::SSL->new($smtp_server, Port => $smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp && $username ) {
$smtp->auth($username, $password);
my $message = oneline($smtp->message());
die "cannot connect with SSL/password: $message" if $smtp->code() =~ m/53\d/;
}
}
elsif( $auth_method ) {
$smtp_port = $default_smtp_port unless $smtp_port;
$smtp = Net::SMTP_auth->new($smtp_server, Port=>$smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp ) {
$smtp->auth($auth_method, $username, $password);
my $message = oneline($smtp->message());
die "cannot connect with SSL/$auth_method: $message" if $smtp->code() =~ m/53\d/;
}
}
else {
$smtp_port = $default_smtp_port unless $smtp_port;
$smtp = Net::SMTP->new($smtp_server, Port=>$smtp_port, Timeout=>$timeout,Debug=>$smtp_debug);
if( $smtp && $username ) {
$smtp->auth($username, $password);
my $message = oneline($smtp->message());
die "cannot connect with password: $message" if $smtp->code() =~ m/53\d/;
}
}
};
if( $@ ) {
$@ =~ s/\n/ /g; # the error message can be multiline but we want our output to be just one line
print "SMTP SEND CRITICAL - $@\n";
exit $status{CRITICAL};
}
unless( $smtp ) {
print "SMTP SEND CRITICAL - Could not connect to $smtp_server port $smtp_port\n";
exit $status{CRITICAL};
}
my $time_connected = time;
# add the monitored server's banner to the report
if( $tls ) {
$report->{banner} = "";
}
elsif( $ssl ) {
$report->{banner} = $smtp->banner || "";
chomp $report->{banner};
}
else {
$report->{banner} = $smtp->banner || "";
chomp $report->{banner};
}
# send email
if( $stdin ) {
$body = "";
while(<STDIN>) {
$body .= $_;
}
}
# if user wants to use template substitutions, this is the place to process body and headers
if( $template ) {
foreach my $item (@header,$body) {
my $t = Text::Template->new(TYPE=>'STRING',SOURCE=>$item,PACKAGE=>'SmtpMessageTemplate');
$item = $t->fill_in(PREPEND=>q{package SmtpMessageTemplate;});
# print "item: $item\n";
}
}
$smtp->mail($mailfrom);
foreach( @mailto ) {
# the two SMTP modules have different error reporting mechanisms:
if( $tls ) {
# Net::SMTP::TLS croaks when the recipient is rejected
eval {
$smtp->to($_);
};
if( $@ ) {
print "SMTP SEND CRITICAL - Could not send to $_\n";
print "Reason: $@\n" if $verbose;
exit $status{CRITICAL};
}
}
else {
# Net::SMTP returns false when the recipient is rejected
my $to_returned = $smtp->to($_);
if( !$to_returned ) {
print "SMTP SEND CRITICAL - Could not send to $_\n";
print "Reason: Recipient rejected or authentication failed\n" if $verbose;
exit $status{CRITICAL};
}
}
}
# Net::SMTP::TLS doesn't implement code() so we need to wrap calls in eval to get our error messages
# start data transfer (expect response 354)
$smtp->data();
# send data
$smtp->datasend("To: ".join(", ",@mailto)."\n");
$smtp->datasend("From: $mailfrom\n");
foreach( @header ) {
$smtp->datasend("$_\n");
}
$smtp->datasend("\n");
$smtp->datasend($body);
$smtp->datasend("\n");
eval {
# end data transfer (expect response 250)
$smtp->dataend();
};
if( $@ ) {
$actual_response = $tls ? get_tls_error($@) : $smtp->code();
}
else {
$actual_response = $tls ? "250" : $smtp->code(); # no error means we got 250
}
eval {
# disconnect from SMTP server (expect response 221)
$smtp->quit();
};
if( $@ ) {
push @warning, "Error while disconnecting from $smtp_server";
}
# calculate elapsed time and issue warnings
my $time_end = time;
my $elapsedtime = $time_end - $time_start;
$report->{seconds} = $elapsedtime;
push @warning, "connection time more than $warntime" if( $time_connected - $time_start > $warntime );
push @critical, "connection time more than $criticaltime" if( $time_connected - $time_start > $criticaltime );
push @critical, "response was $actual_response but expected $expect_response" if ( $actual_response ne $expect_response );
# print report and exit with known status
my $perf_data = "elapsed=".$report->{seconds}."s;$warntime;$criticaltime"; # TODO: need a component for safely generating valid perf data format. for notes on the format, see http://www.perfparse.de/tiki-view_faq.php?faqId=6 and http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN185
my $short_report = $report->text(qw/seconds/) . " | $perf_data";
my $long_report = join("", map { "$_: $report->{$_}\n" } qw/banner/ );
if( scalar @critical ) {
my $crit_alerts = join(", ", @critical);
print "SMTP SEND CRITICAL - $crit_alerts; $short_report\n";
print $long_report if $verbose;
exit $status{CRITICAL};
}
if( scalar @warning ) {
my $warn_alerts = join(", ", @warning);
print "SMTP SEND WARNING - $warn_alerts; $short_report\n";
print $long_report if $verbose;
exit $status{WARNING};
}
print "SMTP SEND OK - $short_report\n";
print $long_report if $verbose;
exit $status{OK};
# utility to load required modules. exits if unable to load one or more of the modules.
sub load_modules {
my @missing_modules = ();
foreach( @_ ) {
eval "require $_";
push @missing_modules, $_ if $@;
}
if( @missing_modules ) {
print "Missing perl modules: @missing_modules\n";
return 0;
}
return 1;
}
# utility to extract error codes out of Net::SMTP::TLS croak messages
sub get_tls_error {
my ($errormsg) = @_;
$errormsg =~ m/: (\d+) (.+)/;
my $code = $1;
return $code;
}
# looks for a specific header in a list of headers; returns true if found
sub find_header {
my ($name, @list) = @_;
return scalar grep { m/^$name: /i } @list;
}
# RFC 2822 date header
sub default_date_header {
return strftime "Date: %a, %e %b %Y %H:%M:%S %z (%Z)", gmtime;
}
# RFC 2822 message id header
sub default_messageid_header {
my $random = randomstring(16,qw/0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z/);
my $hostname = `hostname`;
chomp $hostname;
return "Message-ID: <".time.".".$random.".checksmtpsend@".$hostname.">";
}
# returns a random string of specified length using characters from specified set
sub randomstring {
my ($length,@set) = @_;
my $size = scalar @set;
my $string = "";
while($length--) {
$string .= $set[int(rand($size))];
}
return $string;
}
# replaces all newlines in the input string with spaces
sub oneline {
my ($input) = @_;
$input =~ s/[\r\n]+/ /g;
return $input;
}
# NAME
# PluginReport
# SYNOPSIS
# $report = new PluginReport;
# $report->{label1} = "value1";
# $report->{label2} = "value2";
# print $report->text(qw/label1 label2/);
package PluginReport;
sub new {
my ($proto,%p) = @_;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
$self->{$_} = $p{$_} foreach keys %p;
return $self;
}
sub text {
my ($self,@labels) = @_;
my @report = map { "$self->{$_} $_" } grep { defined $self->{$_} } @labels;
my $text = join(", ", @report);
return $text;
}
package SmtpMessageTemplate;
sub trim {
my ($text) = @_;
$text =~ s/^\s*//;
$text =~ s/\s*$//;
return $text;
}
# NAME
# TLS_auth
# SYNOPSYS
#
# Based on contribution by Brad Guillory
package TLS_auth;
#use Net::SMTP::TLS;
our @ISA = qw(Net::SMTP::TLS);
use Carp;
sub new {
my ($proto,$server,%p) = @_;
my $class = ref($proto) || $proto;
#my $self = bless {}, $class;
no strict 'refs';
no warnings 'once';
*Net::SMTP::TLS::login = *TLS_auth::login; # override parent's login with ours so when it's called in the constructor, our overriden version will be used
my $self = Net::SMTP::TLS->new($server,%p);
return $self;
}
sub login {
my ($self) = @_;
my $type = $self->{features}->{AUTH};
if(not $type){
die "Server did not return AUTH in capabilities\n"; # croak
}
# print "Feature: $type\nAuth Method: $self->{Auth_Method}\n";
if($type =~ /CRAM\-MD5/ and $self->{Auth_Method} =~ /CRAM\-MD5/i){
$self->auth_MD5();
}elsif($type =~ /LOGIN/ and $self->{Auth_Method} =~ /LOGIN/i){
$self->auth_LOGIN();
}elsif($type =~ /PLAIN/ and $self->{Auth_Method} =~ /PLAIN/i){
#print "Calling auth_PLAIN\n";
$self->auth_PLAIN();
}else{
die "Unsupported Authentication mechanism: $self->{Auth_Method}\n"; # croak
}
}
package main;
1;

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HOW TO CONNECT TO IMAP SERVER MANUALLY
This how-to borrowed from: http://www.bincimap.org/bincimap-faq.html
1) Connection
Using telnet, connect to your service on port 143. Replace "server" with your server's name. If the server is set up correctly, you will see this greeting:
# telnet server 143
* OK IMAP Server ready
If you have SSL enabled (most likely you do), connect to port 993 with the openssl tool. If the server is set up correctly, you will see this greeting:
# openssl s_client -connect server:993 -crlf
* OK IMAP Server ready
2) Logging in / authenticating
Firstly, check your bincimap.conf file, in the "Authentication" section, for this setting:
allow plain auth in non ssl = "no"
If you want users to be able to connect without using SSL, set this to "yes".
Using either the telnet (in case of "yes" in the above example) or openssl tool, try the LOGIN command, replacing "username" with one username on your server, and "password" with that user's password. You should get the reply on the second line.
1 LOGIN username password
1 LOGIN completed
Note that you should try logging in with at least two users to check that this feature is working properly.
3) Listing, creating, renaming and deleting mailboxes
Enter the following command to list the user's first level mailboxes. You should get at least one line of response (starting with "* LIST") before you get the "2 OK LIST" reponse.
2 LIST "" "%"
* LIST (\UnMarked) "/" "INBOX"
2 OK LIST completed
Check your bincimap.conf file, under the Mailbox section, and check the "depot" setting. Try creating a mailbox with the following command, replacing mailbox with a name of your choice. Note that if you are using the Maildir++ depot setting, you must use "INBOX/mailbox" instead:
3 CREATE mailbox
3 OK CREATE completed
Rename the mailbox with this command. Note the "INBOX/" prefix when using a Maildir++ depot. (After that, rerunning the LIST command from above will give you a slightly different result than before):
4 RENAME mailbox newmailbox
4 OK RENAME completed
Now delete the mailbox with this command:
5 DELETE newmailbox
5 OK DELETE completed
4) Selecting a mailbox and looking inside
Select your INBOX with this command. Note that the response may be slightly different from in this example:
6 SELECT INBOX
* 146 EXISTS
* OK [UIDVALIDITY 1047992537]
* OK [UIDNEXT 2683] 2683 is the next UID
* FLAGS (\Answered \Flagged \Deleted \Recent \Seen \Draft)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft)] Limited
6 OK [READ-WRITE]
Fetch the flags of all your messages with this command. Note that the "..." is for editorial clarity, many lines of output have been omitted in this example:
7 FETCH 1:* FLAGS
* 1 FETCH (FLAGS (\Seen \Answered))
* 2 FETCH (FLAGS (\Seen \Answered))
...
* 146 FETCH (FLAGS (\Seen \Answered))
7 OK FETCH completed
Set a flag with this command:
8 STORE 1 +FLAGS \Flagged
* FETCH (FLAGS (\Seen \Flagged))
8 OK STORE completed
5) Logging out
9 LOGOUT
* BYE Server logging out
9 OK LOGOUT finished.

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HOW TO TEST THE PLUGIN
Run the shell script tests which start the test server automatically:
./test/3_email_delivery.sh
If you want to start up the test server yourself:
sudo perl test/dummy_smtp_server.pl

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<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>check_email_delivery - sends email and verifies delivery</title>
<link rel="stylesheet" href="plainwhite.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:jonathan@greek.local" />
</head>
<body>
<!-- INDEX BEGIN -->
<div name="index">
<p><a name="__index__"></a></p>
<!--
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#options">OPTIONS</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<ul>
<li><a href="#send_a_message_with_custom_headers">Send a message with custom headers</a></li>
<li><a href="#set_warning_and_critical_timeouts_for_receive_plugin_only_">Set warning and critical timeouts for receive plugin only:</a></li>
</ul>
<li><a href="#exit_codes">EXIT CODES</a></li>
<li><a href="#nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></li>
<li><a href="#changes">CHANGES</a></li>
<li><a href="#author">AUTHOR</a></li>
<li><a href="#copyright_and_license">COPYRIGHT AND LICENSE</a></li>
</ul>
-->
</div>
<!-- INDEX END -->
<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>check_email_delivery - sends email and verifies delivery</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
check_email_delivery -vV
check_email_delivery --usage
check_email_delivery --help</pre>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="warning_seconds_smtp_seconds_imap_seconds" class="item">--warning &lt;seconds&gt;[,&lt;smtp_seconds&gt;,&lt;imap_seconds&gt;]</a></strong></dt>
<dd>
<p>Exit with WARNING if the most recent email found is older than &lt;seconds&gt;. The
optional &lt;smtp_seconds&gt; and &lt;imap_seconds&gt; parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -w &lt;seconds&gt;[,&lt;send&gt;[,&lt;recv&gt;]]</p>
<p>When using the --plugin option, only one parameter is supported (-w &lt;seconds&gt;) and it will apply
to the entire process. You can specify a warning threshold specific to each plugin in the
plugin command line.</p>
<p>When using the --plugin option, no measuring of &quot;most recent email&quot; is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.</p>
</dd>
<dt><strong><a name="critical_seconds_smtp_seconds_imap_seconds" class="item">--critical &lt;seconds&gt;[,&lt;smtp_seconds&gt;,&lt;imap_seconds&gt;]</a></strong></dt>
<dd>
<p>Exit with CRITICAL if the most recent email found is older than &lt;seconds&gt;. The
optional &lt;smtp_seconds&gt; and &lt;imap_seconds&gt; parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -c &lt;seconds&gt;[,&lt;send&gt;[,&lt;recv&gt;]]</p>
<p>When using the --plugin option, only one parameter is supported (-c &lt;seconds&gt;) and it will apply
to the entire process. You can specify a critical threshold specific to each plugin in the
plugin command line.</p>
<p>When using the --plugin option, no measuring of &quot;most recent email&quot; is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.</p>
</dd>
<dt><strong><a name="timeout_seconds" class="item">--timeout &lt;seconds&gt;</a></strong></dt>
<dt><strong><a name="timeout_smtp_seconds_imap_seconds" class="item">--timeout &lt;smtp_seconds&gt;,&lt;imap_seconds&gt;</a></strong></dt>
<dt><strong><a name="timeout_plugin1_seconds_plugin2_seconds" class="item">--timeout &lt;plugin1_seconds&gt;,&lt;plugin2_seconds&gt;,...</a></strong></dt>
<dd>
<p>Exit with CRITICAL if the plugins do not return a status within the specified number of seconds.
When only one parameter is used, it applies to each plugin. When multiple parameters are used
(separated by commas) they apply to plugins in the same order the plugins were specified on the
command line. When using --timeout but not the --plugin option, the first parameter is for
check_smtp_send and the second is for check_imap_receive.</p>
</dd>
<dt><strong><a name="alert_pluginn" class="item">--alert &lt;pluginN&gt;</a></strong></dt>
<dd>
<p>Exit with WARNING or CRITICAL only if a warning or error (--warning, --critical, or --timeout)
occurs for specified plugins. If a warning or error occurs for non-specified plugins that run
BEFORE the specified plugins, the exit status will be UNKNOWN. If a warning of error occurs
for non-specified plugins that run AFTER the specified plugins, the exit status will not be
affected.</p>
<p>You would use this option if you are using check_email_delivery with the --plugin option and
the plugins you configure each use different servers, for example different SMTP and IMAP servers.
By default, if you do not use the --alert option, if anything goes wrong during the email delivery
check, a WARNING or CRITICAL alert will be issued. This means that if you define check_email_delivery
for the SMTP server only and the IMAP server fails, Nagios will alert you for the SMTP server which
would be misleading. If you define it for both the SMTP server and IMAP server and just one of them
fails, Nagios will alert you for both servers, which would still be misleading. If you have this
situation, you may want to use the --alert option. You define the check_email_delivery check for
both servers: for the SMTP server (first plugin) you use --alert 1, and for for the IMAP server
(second plugin) you use --alert 2. When check_email_delivery runs with --alert 1 and the SMTP
server fails, you will get the appropriate alert. If the IMAP server fails it will not affect the
status. When check_email_delivery runs with --alert 2 and the SMTP server fails, you will get the
UNKNOWN return code. If the IMAP server generates an alert you will get a WARNING or CRITICAL as
appropriate.</p>
<p>You can repeat this option to specify multiple plugins that should cause an alert.
Do this if you have multiple plugins on the command line but some of them involve the same server.</p>
<p>See also: --plugin.
Also known as: -A &lt;pluginN&gt;</p>
</dd>
<dt><strong><a name="wait_seconds_seconds" class="item">--wait &lt;seconds&gt;[,&lt;seconds&gt;,...]</a></strong></dt>
<dd>
<p>How long to wait between sending the message and checking that it was received. View default with
the -vV option.</p>
<p>When using the --plugin option, you can specify as many wait-between times as you have plugins
(minus the last plugin, because it makes no sense to wait after running the last one). For
example, if you use the --plugin option twice to specify an SMTP plugin and an IMAP plugin, and
you want to wait 5 seconds between sending and receiving, then you would specify --wait 5. A second
example, if you are using the --plugin option three times, then specifying -w 5 will wait 5 seconds
between the second and third plugins also. You can specify a different wait time
of 10 seconds between the second and third plugins, like this: -w 5,10.</p>
</dd>
<dt><strong><a name="hostname_server" class="item">--hostname &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the SMTP and IMAP server. Examples: mail.server.com, localhost, 192.168.1.100.
Also known as: -H &lt;server&gt;</p>
</dd>
<dt><strong><a name="smtp_server_server" class="item">--smtp-server &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the SMTP server. Examples: smtp.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.</p>
</dd>
<dt><strong><a name="smtp_port_number" class="item">--smtp-port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the SMTP server. Default is 25.</p>
</dd>
<dt><strong><a name="smtp_username_username" class="item">--smtp-username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="smtp_password_password" class="item">--smtp-password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to the SMTP server with the TLS option.
Use these options if the SMTP account has a different username/password than the
IMAP account you are testing. These options take precendence over the --username and
the --password options.</p>
<p>These are shell-escaped; special characters are ok.</p>
</dd>
<dt><strong><a name="imap_server_server" class="item">--imap-server &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the IMAP server. Examples: imap.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.</p>
</dd>
<dt><strong><a name="imap_port_number" class="item">--imap-port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the IMAP server. Default is 143. If you use SSL the default is 993.</p>
</dd>
<dt><strong><a name="imap_username_username" class="item">--imap-username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="imap_password_password" class="item">--imap-password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to the IMAP server.
Use these options if the IMAP account has a different username/password than the
SMTP account you are testing. These options take precendence over the --username and
the --password options.</p>
<p>These are shell-escaped; special characters are ok.</p>
</dd>
<dt><strong><a name="username_username" class="item">--username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="password_password" class="item">--password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to IMAP server.
Also known as: -U &lt;username&gt; -P &lt;password&gt;</p>
<p>Also used as the username and password for SMTP when the TLS option is enabled.
To specify a separate set of credentials for SMTP authentication, see the
options --smtp-username and --smtp-password.</p>
</dd>
<dt><strong><a name="imap_check_interval_seconds" class="item">--imap-check-interval &lt;seconds&gt;</a></strong></dt>
<dd>
<p>How long to wait between polls of the imap-server for the specified mail. Default is 5 seconds.</p>
</dd>
<dt><strong><a name="imap_retries_times" class="item">--imap-retries &lt;times&gt;</a></strong></dt>
<dd>
<p>How many times to poll the imap-server for the mail, before we give up. Default is 10.</p>
</dd>
<dt><strong><a name="body_message" class="item">--body &lt;message&gt;</a></strong></dt>
<dd>
<p>Use this option to specify the body of the email message.</p>
</dd>
<dt><strong><a name="header_header" class="item">--header &lt;header&gt;</a></strong></dt>
<dd>
<p>Use this option to set an arbitrary header in the message. You can use it multiple times.</p>
</dd>
<dt><strong><a name="mailto_recipient_your_net" class="item">--mailto <a href="mailto:recipient@your.net">recipient@your.net</a></a></strong></dt>
<dd>
<p>You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):</p>
<p>$ check_email_delivery ... --mailto <a href="mailto:recipient@your.net,recipient2@your.net">recipient@your.net,recipient2@your.net</a> --mailfrom <a href="mailto:sender@your.net">sender@your.net</a></p>
<p>This argument is shell-escaped; special characters or angle brackets around the address are ok.</p>
</dd>
<dt><strong><a name="mailfrom_sender_your_net" class="item">--mailfrom <a href="mailto:sender@your.net">sender@your.net</a></a></strong></dt>
<dd>
<p>Use this option to set the &quot;from&quot; address in the email.</p>
</dd>
<dt><strong><a name="imapssl_item_noimapssl" class="item">--imapssl
=item --noimapssl</a></strong></dt>
<dd>
<p>Use this to enable or disable SSL for the IMAP plugin.</p>
<p>This argument is shell-escaped; special characters or angle brackets around the address are ok.</p>
</dd>
<dt><strong><a name="smtptls_item_nosmtptls" class="item">--smtptls
=item --nosmtptls</a></strong></dt>
<dd>
<p>Use this to enable or disable TLS/AUTH for the SMTP plugin.</p>
</dd>
<dt><strong><a name="libexec" class="item">--libexec</a></strong></dt>
<dd>
<p>Use this option to set the path of the Nagios libexec directory. The default is
/usr/local/nagios/libexec. This is where this plugin looks for the SMTP and IMAP
plugins that it depends on.</p>
</dd>
<dt><strong><a name="plugin_command" class="item">--plugin &lt;command&gt;</a></strong></dt>
<dd>
<p>This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It frees the plugin from depending on specific external plugins and generalizes the
work done to determine that the email loop is operational. When using the --plugin
option, the following options are ignored: libexec, imapssl, smtptls, hostname,
username, password, smtp*, imap*, mailto, mailfrom, body, header, search.</p>
<p>Use this option multiple times to specify the complete trip. Typically, you would use
this twice to specify plugins for SMTP and IMAP, or SMTP and POP3.</p>
<p>The output will be success if all the plugins return success. Each plugin should be a
standard Nagios plugin.</p>
<p>A random token will be automatically generated and passed to each plugin specified on
the command line by substituting the string %TOKEN1%.</p>
<p>Example usage:</p>
<pre>
command_name check_email_delivery
command_line check_email_delivery
--plugin &quot;$USER1$/check_smtp_send -H $ARG1$ --mailto recipient@your.net --mailfrom sender@your.net --header 'Subject: Nagios Test %TOKEN1%.'&quot;
--plugin &quot;$USER1$/check_imap_receive -H $ARG1$ -U $ARG1$ -P $ARG2$ -s SUBJECT -s 'Nagios Test %TOKEN1%.'&quot;</pre>
<p>This technique allows for a lot of flexibility in configuring the plugins that test
each part of your email delivery loop.</p>
<p>See also: --token.
Also known as: -p &lt;command&gt;</p>
</dd>
<dt><strong><a name="token_format" class="item">--token &lt;format&gt;</a></strong></dt>
<dd>
<p>This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It can be used in conjunction with --plugin to control the tokens that are generated
and passed to the plugins, like %TOKEN1%.</p>
<p>Use this option multiple times to specify formats for different tokens. For example,
if you want %TOKEN1% to consist of only alphabetical characters but want %TOKEN2% to
consist of only digits, then you might use these options: --token aaaaaa --token nnnnn</p>
<p>Any tokens used in your plugin commands that have not been specified by --token &lt;format&gt;
will default to --token U-X-Y</p>
<p>Token formats:
a - alpha character (a-z)
n - numeric character (0-9)
c - alphanumeric character (a-z0-9)
h - hexadecimal character (0-9a-f)
U - unix time, seconds from epoch. eg 1193012441
X - a word from the pgp even list. eg aardvark
Y - a word from the pgp odd list. eg adroitness</p>
<p>Caution: It has been observed that some IMAP servers do not handle underscores well in the
search criteria. For best results, avoid using underscores in your tokens. Use hyphens or commas instead.</p>
<p>See also: --plugin.
Also known as: -T &lt;format&gt;</p>
<p>The PGP word list was obtained from <a href="http://en.wikipedia.org/wiki/PGP_word_list">http://en.wikipedia.org/wiki/PGP_word_list</a></p>
</dd>
<dt><strong><a name="file_file" class="item">--file &lt;file&gt;</a></strong></dt>
<dd>
<p>Save (append) status information into the given tab-delimited file. Format used:</p>
<pre>
token start-time end-time status plugin-num output</pre>
<p>Note: format may change in future versions and may become configurable.</p>
<p>This option available as of version 0.6.2.</p>
<p>Also known as: -F &lt;file&gt;</p>
</dd>
<dt><strong><a name="hires" class="item">--hires</a></strong></dt>
<dd>
<p>Use the Time::HiRes module to measure time, if available.</p>
</dd>
<dt><strong><a name="verbose" class="item">--verbose</a></strong></dt>
<dd>
<p>Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
Also known as: -v</p>
</dd>
<dt><strong><a name="version" class="item">--version</a></strong></dt>
<dd>
<p>Display plugin version and exit.
Also known as: -V</p>
</dd>
<dt><strong><a name="help" class="item">--help</a></strong></dt>
<dd>
<p>Display this documentation and exit. Does not work in the ePN version.
Also known as: -h</p>
</dd>
<dt><strong><a name="usage" class="item">--usage</a></strong></dt>
<dd>
<p>Display a short usage instruction and exit.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>
</p>
<h2><a name="send_a_message_with_custom_headers">Send a message with custom headers</a></h2>
<p>$ check_email_delivery -H mail.server.net --mailto <a href="mailto:recipient@your.net">recipient@your.net</a> --mailfrom <a href="mailto:sender@your.net">sender@your.net</a>
--username recipient --password secret</p>
<p>EMAIL DELIVERY OK - 1 seconds</p>
<p>
</p>
<h2><a name="set_warning_and_critical_timeouts_for_receive_plugin_only_">Set warning and critical timeouts for receive plugin only:</a></h2>
<p>$ check_email_delivery -H mail.server.net --mailto <a href="mailto:recipient@your.net">recipient@your.net</a> --mailfrom <a href="mailto:sender@your.net">sender@your.net</a>
--username recipient --password secret -w ,,5 -c ,,15</p>
<p>EMAIL DELIVERY OK - 1 seconds</p>
<p>
</p>
<hr />
<h1><a name="exit_codes">EXIT CODES</a></h1>
<p><table cellspacing="0" cellpadding="0"><tr><td>Complies with the Nagios plug-in specification:
<tr><td> 0<td>OK<td>The plugin was able to check the service and it appeared to be functioning properly
<tr><td> 1<td>Warning<td>The plugin was able to check the service, but it appeared to be above some &quot;warning&quot; threshold or did not appear to be working properly
<tr><td> 2<td>Critical<td>The plugin detected that either the service was not running or it was above some &quot;critical&quot; threshold
<tr><td> 3<td>Unknown<td>Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service</table></p>
<p>
</p>
<hr />
<h1><a name="nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></h1>
<p>Nagios plugin reference: <a href="http://nagiosplug.sourceforge.net/developer-guidelines.html">http://nagiosplug.sourceforge.net/developer-guidelines.html</a></p>
<p>This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.</p>
<p>Other than that, it attempts to follow published guidelines for Nagios plugins.</p>
<p>
</p>
<hr />
<h1><a name="changes">CHANGES</a></h1>
<pre>
Wed Oct 29 13:08:00 PST 2005
+ version 0.1</pre>
<pre>
Wed Nov 9 17:16:09 PST 2005
+ updated arguments to check_smtp_send and check_imap_receive
+ added eval/alarm block to implement -c option
+ added wait option to adjust sleep time between smtp and imap calls
+ added delay-warn and delay-crit options to adjust email delivery warning thresholds
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2</pre>
<pre>
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson &lt;johann (at) axis.com&gt;)
+ version 0.2.1
+ corrected bug in getoptions ($imap_server would never ever be set from command-line...)
+ will not make $smtp_server and $imap_server == $host if they're defined on commandline
+ added support for multiple polls of imap-server, with specified intervals
+ changed default behaviour in check_imap_server (searches for the specific id in subject and deletes mails found)
+ increased default delay_warn from 65 seconds to 95 seconds</pre>
<pre>
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton &lt;geoff.crompton@strategicdata.com.au&gt;)
+ fixed a bug in getoptions
+ version 0.2.2</pre>
<pre>
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ version 0.2.3</pre>
<pre>
Fri Apr 27 20:32:53 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ changed connection error to display timeout only if timeout was the error
+ default IMAP plugin is libexec/check_imap_receive (also checking for same but with .pl extension)
+ default SMTP plugin is libexec/check_smtp_send (also checking for same but with .pl extension)
+ removed default values for SMTP port and IMAP port to allow those plugins to set the defaults; so current behavior stays the same and will continue to make sense with SSL
+ version 0.3</pre>
<pre>
Thu Oct 11 10:00:00 EET 2007 (by Timo Virtaneva &lt;timo (at) virtaneva dot com&gt;
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.3.1</pre>
<pre>
Sun Oct 21 11:01:03 PDT 2007
+ added support for TLS options to the SMTP plugin
+ version 0.4</pre>
<pre>
Sun Oct 21 16:17:14 PDT 2007
+ added support for arbitrary plugins to send and receive mail (or anthing else!). see the --plugin option.
+ version 0.5</pre>
<pre>
Tue Dec 4 07:36:20 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ shortcut option for --token is now -T to avoid clash with standard shortcut -t for --timeout
+ fixed some minor pod formatting issues for perldoc
+ version 0.5.1</pre>
<pre>
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.5.2</pre>
<pre>
Thu Jan 17 20:27:36 PST 2008 (by Timo Virtaneva &lt;timo (at) virtaneva dot com&gt; on Thu Oct 11 10:00:00 EET 2007)
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.5.3</pre>
<pre>
Mon Jan 28 22:11:02 PST 2008
+ fixed a bug, smtp-password and imap-password are now string parameters
+ added --alert option to allow selection of which plugin(s) should cause a WARNING or CRITICAL alert
+ version 0.6</pre>
<pre>
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable &quot;%status&quot; will not stay shared in load_modules
+ version 0.6.1</pre>
<pre>
Mon May 26 10:39:19 PDT 2008
+ added --file option to allow plugin to record status information into a tab-delimited file
+ changed default token from U_X_Y to U-X-Y
+ version 0.6.2</pre>
<pre>
Wed Jan 14 08:29:35 PST 2009
+ fixed a bug that the --header parameter was not being passed to the smtp plugin.
+ version 0.6.3</pre>
<pre>
Mon Jun 8 15:43:48 PDT 2009
+ added performance data for use with PNP4Nagios! (thanks to Ben Ritcey for the patch)
+ version 0.6.4</pre>
<pre>
Wed Sep 16 07:10:10 PDT 2009
+ added elapsed time in seconds to performance data
+ version 0.6.5</pre>
<pre>
Fri Oct 8 19:48:44 PDT 2010
+ fixed uniform IMAP and SMTP username and password bug (thanks to Micle Moerenhout for pointing it out)
+ version 0.6.6</pre>
<pre>
Mon Jan 3 08:24:23 PST 2011
+ added shell escaping for smtp-username, smtp-password, mailto, mailfrom, imap-username, and imap-password arguments
+ version 0.7.0</pre>
<pre>
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1</pre>
<pre>
Sun Jun 12 17:17:06 AST 2011
+ added --imap-mailbox option to pass through to check_imap_receive --mailbox option
+ added --ssl option to conveniently enable both --smtp-tls and --imap-ssl
+ version 0.7.2</pre>
<p>
</p>
<hr />
<h1><a name="author">AUTHOR</a></h1>
<p>Jonathan Buhacoff &lt;<a href="mailto:jonathan@buhacoff.net">jonathan@buhacoff.net</a>&gt;</p>
<p>
</p>
<hr />
<h1><a name="copyright_and_license">COPYRIGHT AND LICENSE</a></h1>
<pre>
Copyright (C) 2005-2011 Jonathan Buhacoff</pre>
<pre>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.</pre>
<pre>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</pre>
<pre>
You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/&gt">http://www.gnu.org/licenses/&gt</a>;.</pre>
<pre>
<a href="http://www.gnu.org/licenses/gpl.txt">http://www.gnu.org/licenses/gpl.txt</a></pre>
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=pod
=head1 NAME
check_email_delivery - sends email and verifies delivery
=head1 SYNOPSIS
check_email_delivery -vV
check_email_delivery --usage
check_email_delivery --help
=head1 OPTIONS
=over
=item --warning <seconds>[,<smtp_seconds>,<imap_seconds>]
Exit with WARNING if the most recent email found is older than <seconds>. The
optional <smtp_seconds> and <imap_seconds> parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -w <seconds>[,<send>[,<recv>]]
When using the --plugin option, only one parameter is supported (-w <seconds>) and it will apply
to the entire process. You can specify a warning threshold specific to each plugin in the
plugin command line.
When using the --plugin option, no measuring of "most recent email" is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.
=item --critical <seconds>[,<smtp_seconds>,<imap_seconds>]
Exit with CRITICAL if the most recent email found is older than <seconds>. The
optional <smtp_seconds> and <imap_seconds> parameters will be passed on to the
included plugins that are used for those tasks. If they are not
given then they will not be passed on and the default for that plugin will apply.
Also known as: -c <seconds>[,<send>[,<recv>]]
When using the --plugin option, only one parameter is supported (-c <seconds>) and it will apply
to the entire process. You can specify a critical threshold specific to each plugin in the
plugin command line.
When using the --plugin option, no measuring of "most recent email" is done because we would
not know how to read this information from receive plugins. This may be addressed in future versions.
=item --timeout <seconds>
=item --timeout <smtp_seconds>,<imap_seconds>
=item --timeout <plugin1_seconds>,<plugin2_seconds>,...
Exit with CRITICAL if the plugins do not return a status within the specified number of seconds.
When only one parameter is used, it applies to each plugin. When multiple parameters are used
(separated by commas) they apply to plugins in the same order the plugins were specified on the
command line. When using --timeout but not the --plugin option, the first parameter is for
check_smtp_send and the second is for check_imap_receive.
=item --alert <pluginN>
Exit with WARNING or CRITICAL only if a warning or error (--warning, --critical, or --timeout)
occurs for specified plugins. If a warning or error occurs for non-specified plugins that run
BEFORE the specified plugins, the exit status will be UNKNOWN. If a warning of error occurs
for non-specified plugins that run AFTER the specified plugins, the exit status will not be
affected.
You would use this option if you are using check_email_delivery with the --plugin option and
the plugins you configure each use different servers, for example different SMTP and IMAP servers.
By default, if you do not use the --alert option, if anything goes wrong during the email delivery
check, a WARNING or CRITICAL alert will be issued. This means that if you define check_email_delivery
for the SMTP server only and the IMAP server fails, Nagios will alert you for the SMTP server which
would be misleading. If you define it for both the SMTP server and IMAP server and just one of them
fails, Nagios will alert you for both servers, which would still be misleading. If you have this
situation, you may want to use the --alert option. You define the check_email_delivery check for
both servers: for the SMTP server (first plugin) you use --alert 1, and for for the IMAP server
(second plugin) you use --alert 2. When check_email_delivery runs with --alert 1 and the SMTP
server fails, you will get the appropriate alert. If the IMAP server fails it will not affect the
status. When check_email_delivery runs with --alert 2 and the SMTP server fails, you will get the
UNKNOWN return code. If the IMAP server generates an alert you will get a WARNING or CRITICAL as
appropriate.
You can repeat this option to specify multiple plugins that should cause an alert.
Do this if you have multiple plugins on the command line but some of them involve the same server.
See also: --plugin.
Also known as: -A <pluginN>
=item --wait <seconds>[,<seconds>,...]
How long to wait between sending the message and checking that it was received. View default with
the -vV option.
When using the --plugin option, you can specify as many wait-between times as you have plugins
(minus the last plugin, because it makes no sense to wait after running the last one). For
example, if you use the --plugin option twice to specify an SMTP plugin and an IMAP plugin, and
you want to wait 5 seconds between sending and receiving, then you would specify --wait 5. A second
example, if you are using the --plugin option three times, then specifying -w 5 will wait 5 seconds
between the second and third plugins also. You can specify a different wait time
of 10 seconds between the second and third plugins, like this: -w 5,10.
=item --hostname <server>
Address or name of the SMTP and IMAP server. Examples: mail.server.com, localhost, 192.168.1.100.
Also known as: -H <server>
=item --smtp-server <server>
Address or name of the SMTP server. Examples: smtp.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.
=item --smtp-port <number>
Service port on the SMTP server. Default is 25.
=item --smtp-username <username>
=item --smtp-password <password>
Username and password to use when connecting to the SMTP server with the TLS option.
Use these options if the SMTP account has a different username/password than the
IMAP account you are testing. These options take precendence over the --username and
the --password options.
These are shell-escaped; special characters are ok.
=item --imap-server <server>
Address or name of the IMAP server. Examples: imap.server.com, localhost, 192.168.1.100.
Using this option overrides the hostname option.
=item --imap-port <number>
Service port on the IMAP server. Default is 143. If you use SSL the default is 993.
=item --imap-username <username>
=item --imap-password <password>
Username and password to use when connecting to the IMAP server.
Use these options if the IMAP account has a different username/password than the
SMTP account you are testing. These options take precendence over the --username and
the --password options.
These are shell-escaped; special characters are ok.
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
Also used as the username and password for SMTP when the TLS option is enabled.
To specify a separate set of credentials for SMTP authentication, see the
options --smtp-username and --smtp-password.
=item --imap-check-interval <seconds>
How long to wait between polls of the imap-server for the specified mail. Default is 5 seconds.
=item --imap-retries <times>
How many times to poll the imap-server for the mail, before we give up. Default is 10.
=item --body <message>
Use this option to specify the body of the email message.
=item --header <header>
Use this option to set an arbitrary header in the message. You can use it multiple times.
=item --mailto recipient@your.net
You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):
$ check_email_delivery ... --mailto recipient@your.net,recipient2@your.net --mailfrom sender@your.net
This argument is shell-escaped; special characters or angle brackets around the address are ok.
=item --mailfrom sender@your.net
Use this option to set the "from" address in the email.
=item --imapssl
=item --noimapssl
Use this to enable or disable SSL for the IMAP plugin.
This argument is shell-escaped; special characters or angle brackets around the address are ok.
=item --smtptls
=item --nosmtptls
Use this to enable or disable TLS/AUTH for the SMTP plugin.
=item --libexec
Use this option to set the path of the Nagios libexec directory. The default is
/usr/local/nagios/libexec. This is where this plugin looks for the SMTP and IMAP
plugins that it depends on.
=item --plugin <command>
This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It frees the plugin from depending on specific external plugins and generalizes the
work done to determine that the email loop is operational. When using the --plugin
option, the following options are ignored: libexec, imapssl, smtptls, hostname,
username, password, smtp*, imap*, mailto, mailfrom, body, header, search.
Use this option multiple times to specify the complete trip. Typically, you would use
this twice to specify plugins for SMTP and IMAP, or SMTP and POP3.
The output will be success if all the plugins return success. Each plugin should be a
standard Nagios plugin.
A random token will be automatically generated and passed to each plugin specified on
the command line by substituting the string %TOKEN1%.
Example usage:
command_name check_email_delivery
command_line check_email_delivery
--plugin "$USER1$/check_smtp_send -H $ARG1$ --mailto recipient@your.net --mailfrom sender@your.net --header 'Subject: Nagios Test %TOKEN1%.'"
--plugin "$USER1$/check_imap_receive -H $ARG1$ -U $ARG1$ -P $ARG2$ -s SUBJECT -s 'Nagios Test %TOKEN1%.'"
This technique allows for a lot of flexibility in configuring the plugins that test
each part of your email delivery loop.
See also: --token.
Also known as: -p <command>
=item --token <format>
This is a new option introduced in version 0.5 of the check_email_delivery plugin.
It can be used in conjunction with --plugin to control the tokens that are generated
and passed to the plugins, like %TOKEN1%.
Use this option multiple times to specify formats for different tokens. For example,
if you want %TOKEN1% to consist of only alphabetical characters but want %TOKEN2% to
consist of only digits, then you might use these options: --token aaaaaa --token nnnnn
Any tokens used in your plugin commands that have not been specified by --token <format>
will default to --token U-X-Y
Token formats:
a - alpha character (a-z)
n - numeric character (0-9)
c - alphanumeric character (a-z0-9)
h - hexadecimal character (0-9a-f)
U - unix time, seconds from epoch. eg 1193012441
X - a word from the pgp even list. eg aardvark
Y - a word from the pgp odd list. eg adroitness
Caution: It has been observed that some IMAP servers do not handle underscores well in the
search criteria. For best results, avoid using underscores in your tokens. Use hyphens or commas instead.
See also: --plugin.
Also known as: -T <format>
The PGP word list was obtained from http://en.wikipedia.org/wiki/PGP_word_list
=item --file <file>
Save (append) status information into the given tab-delimited file. Format used:
token start-time end-time status plugin-num output
Note: format may change in future versions and may become configurable.
This option available as of version 0.6.2.
Also known as: -F <file>
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Send a message with custom headers
$ check_email_delivery -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--username recipient --password secret
EMAIL DELIVERY OK - 1 seconds
=head2 Set warning and critical timeouts for receive plugin only:
$ check_email_delivery -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--username recipient --password secret -w ,,5 -c ,,15
EMAIL DELIVERY OK - 1 seconds
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 CHANGES
Wed Oct 29 13:08:00 PST 2005
+ version 0.1
Wed Nov 9 17:16:09 PST 2005
+ updated arguments to check_smtp_send and check_imap_receive
+ added eval/alarm block to implement -c option
+ added wait option to adjust sleep time between smtp and imap calls
+ added delay-warn and delay-crit options to adjust email delivery warning thresholds
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson <johann (at) axis.com>)
+ version 0.2.1
+ corrected bug in getoptions ($imap_server would never ever be set from command-line...)
+ will not make $smtp_server and $imap_server == $host if they're defined on commandline
+ added support for multiple polls of imap-server, with specified intervals
+ changed default behaviour in check_imap_server (searches for the specific id in subject and deletes mails found)
+ increased default delay_warn from 65 seconds to 95 seconds
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton <geoff.crompton@strategicdata.com.au>)
+ fixed a bug in getoptions
+ version 0.2.2
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ version 0.2.3
Fri Apr 27 20:32:53 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ changed connection error to display timeout only if timeout was the error
+ default IMAP plugin is libexec/check_imap_receive (also checking for same but with .pl extension)
+ default SMTP plugin is libexec/check_smtp_send (also checking for same but with .pl extension)
+ removed default values for SMTP port and IMAP port to allow those plugins to set the defaults; so current behavior stays the same and will continue to make sense with SSL
+ version 0.3
Thu Oct 11 10:00:00 EET 2007 (by Timo Virtaneva <timo (at) virtaneva dot com>
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.3.1
Sun Oct 21 11:01:03 PDT 2007
+ added support for TLS options to the SMTP plugin
+ version 0.4
Sun Oct 21 16:17:14 PDT 2007
+ added support for arbitrary plugins to send and receive mail (or anthing else!). see the --plugin option.
+ version 0.5
Tue Dec 4 07:36:20 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ shortcut option for --token is now -T to avoid clash with standard shortcut -t for --timeout
+ fixed some minor pod formatting issues for perldoc
+ version 0.5.1
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.5.2
Thu Jan 17 20:27:36 PST 2008 (by Timo Virtaneva <timo (at) virtaneva dot com> on Thu Oct 11 10:00:00 EET 2007)
+ Changed the header and the search criteria so that the same email-box can be used for all smtp-servers
+ version 0.5.3
Mon Jan 28 22:11:02 PST 2008
+ fixed a bug, smtp-password and imap-password are now string parameters
+ added --alert option to allow selection of which plugin(s) should cause a WARNING or CRITICAL alert
+ version 0.6
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.6.1
Mon May 26 10:39:19 PDT 2008
+ added --file option to allow plugin to record status information into a tab-delimited file
+ changed default token from U_X_Y to U-X-Y
+ version 0.6.2
Wed Jan 14 08:29:35 PST 2009
+ fixed a bug that the --header parameter was not being passed to the smtp plugin.
+ version 0.6.3
Mon Jun 8 15:43:48 PDT 2009
+ added performance data for use with PNP4Nagios! (thanks to Ben Ritcey for the patch)
+ version 0.6.4
Wed Sep 16 07:10:10 PDT 2009
+ added elapsed time in seconds to performance data
+ version 0.6.5
Fri Oct 8 19:48:44 PDT 2010
+ fixed uniform IMAP and SMTP username and password bug (thanks to Micle Moerenhout for pointing it out)
+ version 0.6.6
Mon Jan 3 08:24:23 PST 2011
+ added shell escaping for smtp-username, smtp-password, mailto, mailfrom, imap-username, and imap-password arguments
+ version 0.7.0
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1
Sun Jun 12 17:17:06 AST 2011
+ added --imap-mailbox option to pass through to check_imap_receive --mailbox option
+ added --ssl option to conveniently enable both --smtp-tls and --imap-ssl
+ version 0.7.2
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>check_imap_quota - connects to an IMAP account and checks the quota</title>
<link rel="stylesheet" href="plainwhite.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:jonathan@greek.local" />
</head>
<body>
<!-- INDEX BEGIN -->
<div name="index">
<p><a name="__index__"></a></p>
<!--
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#options">OPTIONS</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<ul>
<li><a href="#report_how_many_emails_are_in_the_mailbox">Report how many emails are in the mailbox</a></li>
<li><a href="#report_the_email_with_the_highest_value">Report the email with the highest value</a></li>
<li><a href="#troubleshoot_your_search_parameters">Troubleshoot your search parameters</a></li>
</ul>
<li><a href="#exit_codes">EXIT CODES</a></li>
<li><a href="#nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></li>
<li><a href="#see_also">SEE ALSO</a></li>
<li><a href="#changes">CHANGES</a></li>
<li><a href="#author">AUTHOR</a></li>
<li><a href="#copyright_and_license">COPYRIGHT AND LICENSE</a></li>
</ul>
-->
</div>
<!-- INDEX END -->
<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>check_imap_quota - connects to an IMAP account and checks the quota</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
check_imap_quota -vV
check_imap_quota -?
check_imap_quota --help</pre>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="warning_seconds" class="item">--warning &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Warn if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 15 seconds.
Also known as: -w &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="critical_seconds" class="item">--critical &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Return a critical status if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical &lt;messages&gt;
Also known as: -c &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="timeout_seconds" class="item">--timeout &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Abort with critical status if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="hostname_server" class="item">--hostname &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H &lt;server&gt;</p>
</dd>
<dt><strong><a name="port_number" class="item">--port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p &lt;number&gt;</p>
</dd>
<dt><strong><a name="username_username" class="item">--username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="password_password" class="item">--password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to IMAP server.
Also known as: -U &lt;username&gt; -P &lt;password&gt;</p>
</dd>
<dt><strong><a name="mailbox_mailbox" class="item">--mailbox &lt;mailbox&gt;</a></strong></dt>
<dd>
<p>Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m &lt;mailbox&gt;</p>
</dd>
<dt><strong><a name="ssl" class="item">--ssl</a></strong></dt>
<dt><strong><a name="nossl" class="item">--nossl</a></strong></dt>
<dd>
<p>Enable SSL protocol. Requires IO::Socket::SSL.</p>
<p>Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.</p>
<p>Use the nossl option to turn off the ssl option.</p>
</dd>
<dt><strong><a name="hires" class="item">--hires</a></strong></dt>
<dd>
<p>Use the Time::HiRes module to measure time, if available.</p>
</dd>
<dt><strong><a name="verbose" class="item">--verbose</a></strong></dt>
<dd>
<p>Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.</p>
<p>If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.</p>
<p>Also known as: -v</p>
</dd>
<dt><strong><a name="version" class="item">--version</a></strong></dt>
<dd>
<p>Display plugin version and exit.
Also known as: -V</p>
</dd>
<dt><strong><a name="help" class="item">--help</a></strong></dt>
<dd>
<p>Display this documentation and exit. Does not work in the ePN version.
Also known as: -h</p>
</dd>
<dt><strong><a name="usage" class="item">--usage</a></strong></dt>
<dd>
<p>Display a short usage instruction and exit.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>
</p>
<h2><a name="report_how_many_emails_are_in_the_mailbox">Report how many emails are in the mailbox</a></h2>
<pre>
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete</pre>
<pre>
IMAP RECEIVE OK - 1 seconds, 7 found</pre>
<p>
</p>
<h2><a name="report_the_email_with_the_highest_value">Report the email with the highest value</a></h2>
<p>Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):</p>
<pre>
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: &lt;auto-000000992528@server.net&gt;</pre>
<pre>
Homeruns 5</pre>
<p>And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:</p>
<pre>
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s &quot;Results of Autoscript&quot; --capture-max &quot;Homeruns (\d+)&quot; --nodelete-captured</pre>
<pre>
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted</pre>
<p>
</p>
<h2><a name="troubleshoot_your_search_parameters">Troubleshoot your search parameters</a></h2>
<p>Add the --nodelete and --imap-retries=1 parameters to your command line.</p>
<p>
</p>
<hr />
<h1><a name="exit_codes">EXIT CODES</a></h1>
<p><table cellspacing="0" cellpadding="0"><tr><td>Complies with the Nagios plug-in specification:
<tr><td> 0<td>OK<td>The plugin was able to check the service and it appeared to be functioning properly
<tr><td> 1<td>Warning<td>The plugin was able to check the service, but it appeared to be above some &quot;warning&quot; threshold or did not appear to be working properly
<tr><td> 2<td>Critical<td>The plugin detected that either the service was not running or it was above some &quot;critical&quot; threshold
<tr><td> 3<td>Unknown<td>Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service</table></p>
<p>
</p>
<hr />
<h1><a name="nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></h1>
<p>Nagios plugin reference: <a href="http://nagiosplug.sourceforge.net/developer-guidelines.html">http://nagiosplug.sourceforge.net/developer-guidelines.html</a></p>
<p>This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.</p>
<p>Other than that, it attempts to follow published guidelines for Nagios plugins.</p>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><a href="http://nagios.org/">http://nagios.org/</a>
<a href="http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod">http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod</a>
<a href="http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod">http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod</a></p>
<p>
</p>
<hr />
<h1><a name="changes">CHANGES</a></h1>
<pre>
Fri Nov 11 04:53:09 AST 2011
+ version 0.1 created with quota code contributed by Johan Romme</pre>
<pre>
Tue Dec 20 17:38:04 PST 2011
+ fixed bug where a quota of 0 was reported as an incorrect response from the server, thanks to Eike Arndt
+ version 0.2</pre>
<p>
</p>
<hr />
<h1><a name="author">AUTHOR</a></h1>
<p>Jonathan Buhacoff &lt;<a href="mailto:jonathan@buhacoff.net">jonathan@buhacoff.net</a>&gt;</p>
<p>
</p>
<hr />
<h1><a name="copyright_and_license">COPYRIGHT AND LICENSE</a></h1>
<pre>
Copyright (C) 2011 Jonathan Buhacoff</pre>
<pre>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.</pre>
<pre>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</pre>
<pre>
You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/&gt">http://www.gnu.org/licenses/&gt</a>;.</pre>
<pre>
<a href="http://www.gnu.org/licenses/gpl.txt">http://www.gnu.org/licenses/gpl.txt</a></pre>
</body>
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=pod
=head1 NAME
check_imap_quota - connects to an IMAP account and checks the quota
=head1 SYNOPSIS
check_imap_quota -vV
check_imap_quota -?
check_imap_quota --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the IMAP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical <messages>
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
=item --mailbox <mailbox>
Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m <mailbox>
=item --ssl
=item --nossl
Enable SSL protocol. Requires IO::Socket::SSL.
Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.
Use the nossl option to turn off the ssl option.
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Report how many emails are in the mailbox
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete
IMAP RECEIVE OK - 1 seconds, 7 found
=head2 Report the email with the highest value
Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: <auto-000000992528@server.net>
Homeruns 5
And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s "Results of Autoscript" --capture-max "Homeruns (\d+)" --nodelete-captured
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted
=head2 Troubleshoot your search parameters
Add the --nodelete and --imap-retries=1 parameters to your command line.
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 SEE ALSO
http://nagios.org/
http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod
http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod
=head1 CHANGES
Fri Nov 11 04:53:09 AST 2011
+ version 0.1 created with quota code contributed by Johan Romme
Tue Dec 20 17:38:04 PST 2011
+ fixed bug where a quota of 0 was reported as an incorrect response from the server, thanks to Eike Arndt
+ version 0.2
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>check_imap_receive - connects to and searches an IMAP account for messages</title>
<link rel="stylesheet" href="plainwhite.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:jonathan@greek.local" />
</head>
<body>
<!-- INDEX BEGIN -->
<div name="index">
<p><a name="__index__"></a></p>
<!--
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#options">OPTIONS</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<ul>
<li><a href="#report_how_many_emails_are_in_the_mailbox">Report how many emails are in the mailbox</a></li>
<li><a href="#report_the_email_with_the_highest_value">Report the email with the highest value</a></li>
<li><a href="#troubleshoot_your_search_parameters">Troubleshoot your search parameters</a></li>
</ul>
<li><a href="#exit_codes">EXIT CODES</a></li>
<li><a href="#nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></li>
<li><a href="#see_also">SEE ALSO</a></li>
<li><a href="#changes">CHANGES</a></li>
<li><a href="#author">AUTHOR</a></li>
<li><a href="#copyright_and_license">COPYRIGHT AND LICENSE</a></li>
</ul>
-->
</div>
<!-- INDEX END -->
<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>check_imap_receive - connects to and searches an IMAP account for messages</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
check_imap_receive -vV
check_imap_receive -?
check_imap_receive --help</pre>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="warning_seconds" class="item">--warning &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Warn if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 15 seconds.
Also known as: -w &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="critical_seconds" class="item">--critical &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Return a critical status if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical &lt;messages&gt;
Also known as: -c &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="timeout_seconds" class="item">--timeout &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Abort with critical status if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="imap_check_interval_seconds" class="item">--imap-check-interval &lt;seconds&gt;</a></strong></dt>
<dd>
<p>How long to wait after searching for a matching message before searching again. Only takes effect
if no messages were found. Default is 5 seconds.</p>
</dd>
<dt><strong><a name="imap_retries_number" class="item">--imap-retries &lt;number&gt;</a></strong></dt>
<dd>
<p>How many times to try searching for a matching message before giving up. If you set this to 0 then
messages will not be searched at all. Setting this to 1 means the plugin only tries once. Etc.
Default is 10 times.</p>
</dd>
<dt><strong><a name="hostname_server" class="item">--hostname &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H &lt;server&gt;</p>
</dd>
<dt><strong><a name="port_number" class="item">--port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p &lt;number&gt;</p>
</dd>
<dt><strong><a name="username_username" class="item">--username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="password_password" class="item">--password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to IMAP server.
Also known as: -U &lt;username&gt; -P &lt;password&gt;</p>
</dd>
<dt><strong><a name="mailbox_mailbox" class="item">--mailbox &lt;mailbox&gt;</a></strong></dt>
<dd>
<p>Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m &lt;mailbox&gt;</p>
</dd>
<dt><strong><a name="search_string" class="item">--search &lt;string&gt;</a></strong></dt>
<dd>
<p>Use this option to filter the messages. Default is not to filter. You may (must) use this option
multiple times in order to create any valid IMAP search criteria. See the examples and see also
<a href="http://www.ietf.org/rfc/rfc2060.txt">http://www.ietf.org/rfc/rfc2060.txt</a> (look for section 6.4.4, the SEARCH command)</p>
<p>This is the way to find messages matching a given subject:
-s SUBJECT -s &quot;a given subject&quot;</p>
<p>You can use the following technique for any header, including Subject. To find &quot;Header-Name: some value&quot;:
-s HEADER -s Header-Name -s &quot;some value&quot;</p>
<p>Modern IMAP servers that support rfc5032 extensions allow you to search for messages
older or younger than a number of seconds. So to find messages received in the past hour,
you can do:</p>
<pre>
-s YOUNGER -s 3600</pre>
<p>Or to find messages received more than 5 minutes ago, you can do:</p>
<pre>
-s OLDER -s 300</pre>
<p>Also known as: -s &lt;string&gt;</p>
</dd>
<dt><strong><a name="download" class="item">--download</a></strong></dt>
<dt><strong><a name="nodownload" class="item">--nodownload</a></strong></dt>
<dd>
<p>This option causes all messages in the specified mailbox to be downloaded from the server
and searched locally. See --download-max if you only want to download a few messages.
Currently only the following <a href="http://www.ietf.org/rfc/rfc2060.txt" class="rfc">RFC 2060</a> search criteria are supported:
TEXT, BODY, SUBJECT, HEADER, NOT, OR, SENTBEFORE, SENTON, SENTSINCE.</p>
<p>Requires Email::Simple to be installed. It is available on CPAN.</p>
<p>This option may be particularly useful to you if your mail server is slow to index
messages (like Exchange 2003), causing the plugin not to find them with IMAP SEARCH
even though they are in the inbox.</p>
<p>It's also useful if you're searching for messages that have been on the server for a
specified amount of time, like some minutes or hours, because the standard IMAP search
function only allows whole dates. For this, use the standard search keywords but you
can specify either just a date like in <a href="http://www.ietf.org/rfc/rfc2060.txt" class="rfc">RFC 2060</a> or a date and a time.</p>
<p>If you use SENTBEFORE, SENTON, or SENTSINCE, you must have Date::Manip installed
on your system.</p>
</dd>
<dt><strong><a name="download_max" class="item">--download-max</a></strong></dt>
<dd>
<p>Limits the number of messages downloaded from the server when the --download option is used.
Default is to download and search all messages.</p>
</dd>
<dt><strong><a name="search_critical_min_messages" class="item">--search-critical-min &lt;messages&gt;</a></strong></dt>
<dd>
<p>This option will trigger a CRITICAL status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.</p>
<p>This parameter defaults to 1 so that if no messages are found, the plugin will exit with a CRITICAL status.</p>
<p>If you want the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0.</p>
</dd>
<dt><strong><a name="search_critical_max_messages" class="item">--search-critical-max &lt;messages&gt;</a></strong></dt>
<dd>
<p>This option will trigger a CRITICAL status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.</p>
<p>This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
CRITICAL if it finds 11 messages. If you set it to 1, the plugin will exit with CRITICAL if it finds
any more than 1 message. If you set it to 0, the plugin will exit with CRITICAL if it finds any messages
at all. If you set it to -1 it will be disabled.</p>
</dd>
<dt><strong><a name="search_warning_min_messages" class="item">--search-warning-min &lt;messages&gt;</a></strong></dt>
<dd>
<p>This option will trigger a WARNING status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.</p>
<p>This parameter defaults to 1 so that if no messages are found, the plugin will exit with a WARNING status.</p>
<p>If you want to suppress the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0. When this parameter is 0, it means that you expect the mailbox not to have any messages.</p>
</dd>
<dt><strong><a name="search_warning_max_messages" class="item">--search-warning-max &lt;messages&gt;</a></strong></dt>
<dd>
<p>This option will trigger a WARNING status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.</p>
<p>This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
WARNING if it finds 11 messages. If you set it to 1, the plugin will exit with WARNING if it finds
any more than 1 message. If you set it to 0, the plugin will exit with WARNING if it finds any messages
at all. If you set it to -1 it will be disabled.</p>
</dd>
<dt><strong><a name="capture_max_regexp" class="item">--capture-max &lt;regexp&gt;</a></strong></dt>
<dd>
<p>In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a &quot;capture-max&quot; regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the highest captured value.</p>
<p>The regexp is expected to capture a numeric value.</p>
</dd>
<dt><strong><a name="capture_min_regexp" class="item">--capture-min &lt;regexp&gt;</a></strong></dt>
<dd>
<p>In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a &quot;capture-min&quot; regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the lowest captured value.</p>
<p>The regexp is expected to capture a numeric value.</p>
</dd>
<dt><strong><a name="delete" class="item">--delete</a></strong></dt>
<dt><strong><a name="nodelete" class="item">--nodelete</a></strong></dt>
<dd>
<p>Use the delete option to delete messages that matched the search criteria. This is useful for
preventing the mailbox from filling up with automated messages (from the check_smtp_send plugin, for example).
THE DELETE OPTION IS TURNED *ON* BY DEFAULT, in order to preserve compatibility with an earlier version.</p>
<p>Use the nodelete option to turn off the delete option.</p>
</dd>
<dt><strong><a name="nodelete_captured" class="item">--nodelete-captured</a></strong></dt>
<dd>
<p>If you use both the capture-max and delete arguments, you can also use the nodelete-captured argument to specify that the email
with the highest captured value should not be deleted. This leaves it available for comparison the next time this plugin runs.</p>
<p>If you do not use the delete option, this option has no effect.</p>
</dd>
<dt><strong><a name="ssl" class="item">--ssl</a></strong></dt>
<dt><strong><a name="nossl" class="item">--nossl</a></strong></dt>
<dd>
<p>Enable SSL protocol. Requires IO::Socket::SSL.</p>
<p>Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.</p>
<p>Use the nossl option to turn off the ssl option.</p>
</dd>
<dt><strong><a name="ssl_ca_file" class="item">--ssl-ca-file</a></strong></dt>
<dd>
<p>Use this to verify the server SSL certificate against a local .pem file. You'll need to
specify the path to the .pem file as the parameter.</p>
<p>You can use the imap_ssl_cert utility included in this distribution to connect to your IMAP
server and save its SSL certificates into your .pem file. Usage is like this:</p>
<pre>
imap_ssl_cert -H imap.server.com &gt; ca_file.pem</pre>
<p>Only applicable when --ssl option is enabled.</p>
</dd>
<dt><strong><a name="template" class="item">--template</a></strong></dt>
<dt><strong><a name="notemplate" class="item">--notemplate</a></strong></dt>
<dd>
<p>Enable (or disable) processing of IMAP search parameters. Requires Text::Template and Date::Manip.</p>
<p>Use this option to apply special processing to IMAP search parameters that allows you to use the
results of arbitrary computations as the parameter values. For example, you can use this feature
to search for message received up to 4 hours ago.</p>
<p>Modern IMAP servers that support rfc5032 extensions allow searching with the YOUNGER and OLDER
criteria so a message received up to 4 hours ago is -s YOUNGER -s 14400. But if your mail server
doesn't support that, you could use the --template option to get similar functionality.</p>
<p>When you enable the --template option, each parameter you pass to the -s option is parsed by
Text::Template. See the Text::Template manual for more information, but in general any expression
written in Perl will work.</p>
<p>A convenience function called rfc2822dateHeader is provided to you so you can easily compute properly
formatted dates for use as search parameters. The rfc2822date function can take one or two
parameters itself: the date to format and an optional offset. To use the current time as a
search parameter, you can write this:</p>
<pre>
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{rfc2822dateHeader(&quot;now&quot;)}'</pre>
<p>The output of {rfc2822dateHeader(&quot;now&quot;)} looks like this: Wed, 30 Sep 2009 22:44:03 -0700 and
is suitable for use with a date header, like HEADER Delivery-Date.</p>
<p>To use a time in the past relative to the current time or day, you can use a second convenience function
called rfc2822date and write this:</p>
<pre>
$ check_imap_receive ... --template -s SENTSINCE -s '{rfc2822date(&quot;now&quot;,&quot;-1 day&quot;)}'</pre>
<p>The output of {rfc2822date(&quot;now&quot;,&quot;-1 day&quot;)} looks like this: 29-Sep-2009 and is suitable for use
with BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, and SINCE.</p>
<p>I have seen some email clients use a different format in the Date field,
like September 17, 2009 9:46:51 AM PDT. To specify an arbitrary format like this one, write this:</p>
<pre>
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{date(&quot;%B %e, %Y %i:%M:%S %p %Z&quot;,&quot;now&quot;,&quot;-4 hours&quot;)}'</pre>
<p>You can use BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, or SINCE to search for messages that arrived
on, before, or after a given day but not on, before, or after a specific time on that day.</p>
<p>To search for messages that arrived on, before, or after a specific time you have to use the
Delivery-Date or another date field, like with -s HEADER -s Delivery-Date in the example above.</p>
<p>See the Date::Manip manual for more information on the allowed expressions for date and delta strings.</p>
</dd>
<dt><strong><a name="hires" class="item">--hires</a></strong></dt>
<dd>
<p>Use the Time::HiRes module to measure time, if available.</p>
</dd>
<dt><strong><a name="verbose" class="item">--verbose</a></strong></dt>
<dd>
<p>Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.</p>
<p>If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.</p>
<p>Also known as: -v</p>
</dd>
<dt><strong><a name="version" class="item">--version</a></strong></dt>
<dd>
<p>Display plugin version and exit.
Also known as: -V</p>
</dd>
<dt><strong><a name="help" class="item">--help</a></strong></dt>
<dd>
<p>Display this documentation and exit. Does not work in the ePN version.
Also known as: -h</p>
</dd>
<dt><strong><a name="usage" class="item">--usage</a></strong></dt>
<dd>
<p>Display a short usage instruction and exit.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>
</p>
<h2><a name="report_how_many_emails_are_in_the_mailbox">Report how many emails are in the mailbox</a></h2>
<pre>
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete</pre>
<pre>
IMAP RECEIVE OK - 1 seconds, 7 found</pre>
<p>
</p>
<h2><a name="report_the_email_with_the_highest_value">Report the email with the highest value</a></h2>
<p>Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):</p>
<pre>
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: &lt;auto-000000992528@server.net&gt;</pre>
<pre>
Homeruns 5</pre>
<p>And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:</p>
<pre>
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s &quot;Results of Autoscript&quot; --capture-max &quot;Homeruns (\d+)&quot; --nodelete-captured</pre>
<pre>
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted</pre>
<p>
</p>
<h2><a name="troubleshoot_your_search_parameters">Troubleshoot your search parameters</a></h2>
<p>Add the --nodelete and --imap-retries=1 parameters to your command line.</p>
<p>
</p>
<hr />
<h1><a name="exit_codes">EXIT CODES</a></h1>
<p><table cellspacing="0" cellpadding="0"><tr><td>Complies with the Nagios plug-in specification:
<tr><td> 0<td>OK<td>The plugin was able to check the service and it appeared to be functioning properly
<tr><td> 1<td>Warning<td>The plugin was able to check the service, but it appeared to be above some &quot;warning&quot; threshold or did not appear to be working properly
<tr><td> 2<td>Critical<td>The plugin detected that either the service was not running or it was above some &quot;critical&quot; threshold
<tr><td> 3<td>Unknown<td>Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service</table></p>
<p>
</p>
<hr />
<h1><a name="nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></h1>
<p>Nagios plugin reference: <a href="http://nagiosplug.sourceforge.net/developer-guidelines.html">http://nagiosplug.sourceforge.net/developer-guidelines.html</a></p>
<p>This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.</p>
<p>Other than that, it attempts to follow published guidelines for Nagios plugins.</p>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><a href="http://nagios.org/">http://nagios.org/</a>
<a href="http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod">http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod</a>
<a href="http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod">http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod</a></p>
<p>
</p>
<hr />
<h1><a name="changes">CHANGES</a></h1>
<pre>
Wed Oct 29 11:00:00 PST 2005
+ version 0.1</pre>
<pre>
Wed Nov 9 09:53:32 PST 2005
+ added delete/nodelete option. deleting found messages is still default behavior.
+ added capture-max option
+ added nodelete-captured option
+ added mailbox option
+ added eval/alarm block to implement -c option
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2</pre>
<pre>
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson &lt;johann (at) axis.com&gt;)
+ version 0.2.1
+ added support for multiple polls of imap-server, with specified intervals</pre>
<pre>
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ added patch from Benjamin Ritcey &lt;ben@ritcey.com&gt; for SSL support on machines that have an SSL-enabled
+ version 0.2.3</pre>
<pre>
Fri Apr 27 18:56:50 PDT 2007
+ fixed problem that &quot;Invalid search parameters&quot; was not printed because of missing newline to flush it
+ warnings and critical errors now try to append error messages received from the IMAP client
+ changed connection error to display timeout only if timeout was the error
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ added abbreviations U for username, P for password, m for mailbox
+ fixed bug that imap-check-interval applied even after the last try (imap-retries) when it was not necessary
+ the IMAP expunge command is not sent unless at least one message is deleted
+ fixed bug that the &quot;no messages&quot; warning was printed even if some messages were found
+ version 0.3</pre>
<pre>
Sun Oct 21 14:08:07 PDT 2007
+ added port info to the &quot;could not connect&quot; error message
+ fixed bug that occurred when using --ssl --port 143 which caused port to remain at the default 993 imap/ssl port
+ added clarity shortcuts --search-subject and --search-header
+ port is no longer a required option. defaults to 143 for regular IMAP and 993 for IMAP/SSL
+ version 0.3.1</pre>
<pre>
Sun Oct 21 20:41:56 PDT 2007
+ reworked ssl support to use IO::Socket::SSL instead of the convenience method Mail::IMAPClient-&gt;Ssl (which is not included in the standard Mail::IMAPClient package)
+ removed clarity shortcuts (bad idea, code bloat)
+ version 0.4</pre>
<pre>
Tue Dec 4 07:05:27 PST 2007
+ added version check to _read_line workaround for SSL-related bug in Mail::IMAPClient version 2.2.9 ; newer versions fixed the bug
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.1</pre>
<pre>
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.4.2</pre>
<pre>
Mon Jan 7 21:35:23 PST 2008
+ changed version check for Mail::IMAPClient version 2.2.9 to use string comparison le &quot;2.2.9&quot;
+ fixed bug where script was dying on socket-&gt;autoflush when socket does not exist because autoflush was being called before checking the socket object
+ version 0.4.3</pre>
<pre>
Mon Feb 11 19:13:38 PST 2008
+ fixed a bug for embedded perl version, variable &quot;%status&quot; will not stay shared in load_modules
+ version 0.4.4</pre>
<pre>
Mon May 26 08:33:27 PDT 2008
+ fixed a bug for number captured, it now reflects number of messages captured instead of always returning &quot;1&quot;
+ added --capture-min option to complement --capture-max
+ added --search-critical-min to trigger a CRITICAL alert if number of messages found is less than argument, with default 1.
+ fixed warning and critical messages to use &quot;more than&quot; or &quot;less than&quot; instead of the angle brackets, to make them more web friendly
+ version 0.5</pre>
<pre>
Wed Jul 2 14:59:05 PDT 2008
+ fixed a bug for not finding a message after the first try, by reselecting the mailbox before each search
+ version 0.5.1</pre>
<pre>
Sat Dec 13 08:57:29 PST 2008
+ added --download option to allow local searching of messages (useful if your server has an index that handles searching but it takes a while before new emails show up and you want immediate results), supports only the TEXT, BODY, SUBJECT, and HEADER search keys
+ added --download-max option to set a limit on number of messages downloaded with --download
+ version 0.6.0</pre>
<pre>
Wed Sep 30 23:25:33 PDT 2009
+ fixed --download-max option (was incorrectly looking for --download_max). currently both will work, in the future only --download-max will work
+ added --template option to allow arbitrary substitutions for search parameters, and provided three convenience functions for working with dates
+ added date search criteria to the --download option: SENTBEFORE, SENTON, and SENTSINCE which check the Date header and allow hours and minutes in addition to dates (whereas the IMAP standard only allows dates)
+ added --search-critical-max to trigger a CRITICAL alert if number of messages found is more than argument, disabled by default.
+ fixed a bug in --download --search where messages would match even though they failed the search criteria
+ changed behavior of --download-max to look at the most recent messages first (hopefully); the IMAP protocol doesn't guarantee the order that the messages are returned but I observed that many mail servers return them in chronological order; so now --download-max reverses the order to look at the newer messages first
+ added performance data for use with PNP4Nagios!
+ version 0.7.0</pre>
<pre>
Fri Oct 2 15:22:00 PDT 2009
+ added --search-warning-max and --search-warning-min to trigger a WARNING alert if number of messages is more than or less than the specified number.
+ fixed --download option not to fail with CRITICAL if mailbox is empty; now this can be configured with --search-warning-min or --search-critical-min
+ version 0.7.1</pre>
<pre>
Sat Nov 21 18:27:17 PST 2009
+ fixed problem with using --download option on certain mail servers by turning on the IgnoreSizeErrors feature in IMAPClient
+ added --peek option to prevent marking messages as seen
+ version 0.7.2</pre>
<pre>
Tue Jan 5 12:13:53 PST 2010
+ added error message and exit with unknown status when an unrecognized IMAP search criteria is encountered by the --download --search option</pre>
<pre>
Wed May 5 11:14:51 PDT 2010
+ added mailbox list when mailbox is not found and verbose level 3 is on (-vvv)
+ version 0.7.3</pre>
<pre>
Tue Mar 8 18:58:14 AST 2011
+ updated documentation for --search and --template to mention rfc5032 extensions (thanks to Stuart Henderson)</pre>
<pre>
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.4</pre>
<pre>
Fri Nov 11 01:51:40 AST 2011
+ added --ssl-ca-file option to allow verifying the server certificate against a local .pem file (thanks to Alexandre Bezroutchko)
+ added imap_ssl_cert.pl utility (not in this file) to conveniently save the server's SSL certificates into a local .pem file
+ version 0.7.5</pre>
<p>
</p>
<hr />
<h1><a name="author">AUTHOR</a></h1>
<p>Jonathan Buhacoff &lt;<a href="mailto:jonathan@buhacoff.net">jonathan@buhacoff.net</a>&gt;</p>
<p>
</p>
<hr />
<h1><a name="copyright_and_license">COPYRIGHT AND LICENSE</a></h1>
<pre>
Copyright (C) 2005-2011 Jonathan Buhacoff</pre>
<pre>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.</pre>
<pre>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</pre>
<pre>
You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/&gt">http://www.gnu.org/licenses/&gt</a>;.</pre>
<pre>
<a href="http://www.gnu.org/licenses/gpl.txt">http://www.gnu.org/licenses/gpl.txt</a></pre>
</body>
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=pod
=head1 NAME
check_imap_receive - connects to and searches an IMAP account for messages
=head1 SYNOPSIS
check_imap_receive -vV
check_imap_receive -?
check_imap_receive --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the IMAP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 30 seconds.
See also: --capture-critical <messages>
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --imap-check-interval <seconds>
How long to wait after searching for a matching message before searching again. Only takes effect
if no messages were found. Default is 5 seconds.
=item --imap-retries <number>
How many times to try searching for a matching message before giving up. If you set this to 0 then
messages will not be searched at all. Setting this to 1 means the plugin only tries once. Etc.
Default is 10 times.
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --username <username>
=item --password <password>
Username and password to use when connecting to IMAP server.
Also known as: -U <username> -P <password>
=item --mailbox <mailbox>
Use this option to specify the mailbox to search for messages. Default is INBOX.
Also known as: -m <mailbox>
=item --search <string>
Use this option to filter the messages. Default is not to filter. You may (must) use this option
multiple times in order to create any valid IMAP search criteria. See the examples and see also
http://www.ietf.org/rfc/rfc2060.txt (look for section 6.4.4, the SEARCH command)
This is the way to find messages matching a given subject:
-s SUBJECT -s "a given subject"
You can use the following technique for any header, including Subject. To find "Header-Name: some value":
-s HEADER -s Header-Name -s "some value"
Modern IMAP servers that support rfc5032 extensions allow you to search for messages
older or younger than a number of seconds. So to find messages received in the past hour,
you can do:
-s YOUNGER -s 3600
Or to find messages received more than 5 minutes ago, you can do:
-s OLDER -s 300
Also known as: -s <string>
=item --download
=item --nodownload
This option causes all messages in the specified mailbox to be downloaded from the server
and searched locally. See --download-max if you only want to download a few messages.
Currently only the following RFC 2060 search criteria are supported:
TEXT, BODY, SUBJECT, HEADER, NOT, OR, SENTBEFORE, SENTON, SENTSINCE.
Requires Email::Simple to be installed. It is available on CPAN.
This option may be particularly useful to you if your mail server is slow to index
messages (like Exchange 2003), causing the plugin not to find them with IMAP SEARCH
even though they are in the inbox.
It's also useful if you're searching for messages that have been on the server for a
specified amount of time, like some minutes or hours, because the standard IMAP search
function only allows whole dates. For this, use the standard search keywords but you
can specify either just a date like in RFC 2060 or a date and a time.
If you use SENTBEFORE, SENTON, or SENTSINCE, you must have Date::Manip installed
on your system.
=item --download-max
Limits the number of messages downloaded from the server when the --download option is used.
Default is to download and search all messages.
=item --search-critical-min <messages>
This option will trigger a CRITICAL status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.
This parameter defaults to 1 so that if no messages are found, the plugin will exit with a CRITICAL status.
If you want the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0.
=item --search-critical-max <messages>
This option will trigger a CRITICAL status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.
This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
CRITICAL if it finds 11 messages. If you set it to 1, the plugin will exit with CRITICAL if it finds
any more than 1 message. If you set it to 0, the plugin will exit with CRITICAL if it finds any messages
at all. If you set it to -1 it will be disabled.
=item --search-warning-min <messages>
This option will trigger a WARNING status if the number of messages found by the search criteria
is below the given number. Use in conjunction with --search.
This parameter defaults to 1 so that if no messages are found, the plugin will exit with a WARNING status.
If you want to suppress the original behavior where the plugin exits with a WARNING status when no messages are found,
set this parameter to 0. When this parameter is 0, it means that you expect the mailbox not to have any messages.
=item --search-warning-max <messages>
This option will trigger a WARNING status if the number of messages found by the search criteria
is above the given number. Use in conjunction with --search.
This parameter defaults to -1 meaning it's disabled. If you set it to 10, the plugin will exit with
WARNING if it finds 11 messages. If you set it to 1, the plugin will exit with WARNING if it finds
any more than 1 message. If you set it to 0, the plugin will exit with WARNING if it finds any messages
at all. If you set it to -1 it will be disabled.
=item --capture-max <regexp>
In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a "capture-max" regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the highest captured value.
The regexp is expected to capture a numeric value.
=item --capture-min <regexp>
In addition to specifying search arguments to filter the emails in the IMAP account, you can specify
a "capture-min" regexp argument and the eligible emails (found with search arguments)
will be compared to each other and the OK line will have the lowest captured value.
The regexp is expected to capture a numeric value.
=item --delete
=item --nodelete
Use the delete option to delete messages that matched the search criteria. This is useful for
preventing the mailbox from filling up with automated messages (from the check_smtp_send plugin, for example).
THE DELETE OPTION IS TURNED *ON* BY DEFAULT, in order to preserve compatibility with an earlier version.
Use the nodelete option to turn off the delete option.
=item --nodelete-captured
If you use both the capture-max and delete arguments, you can also use the nodelete-captured argument to specify that the email
with the highest captured value should not be deleted. This leaves it available for comparison the next time this plugin runs.
If you do not use the delete option, this option has no effect.
=item --ssl
=item --nossl
Enable SSL protocol. Requires IO::Socket::SSL.
Using this option automatically changes the default port from 143 to 993. You can still
override this from the command line using the --port option.
Use the nossl option to turn off the ssl option.
=item --ssl-ca-file
Use this to verify the server SSL certificate against a local .pem file. You'll need to
specify the path to the .pem file as the parameter.
You can use the imap_ssl_cert utility included in this distribution to connect to your IMAP
server and save its SSL certificates into your .pem file. Usage is like this:
imap_ssl_cert -H imap.server.com > ca_file.pem
Only applicable when --ssl option is enabled.
=item --template
=item --notemplate
Enable (or disable) processing of IMAP search parameters. Requires Text::Template and Date::Manip.
Use this option to apply special processing to IMAP search parameters that allows you to use the
results of arbitrary computations as the parameter values. For example, you can use this feature
to search for message received up to 4 hours ago.
Modern IMAP servers that support rfc5032 extensions allow searching with the YOUNGER and OLDER
criteria so a message received up to 4 hours ago is -s YOUNGER -s 14400. But if your mail server
doesn't support that, you could use the --template option to get similar functionality.
When you enable the --template option, each parameter you pass to the -s option is parsed by
Text::Template. See the Text::Template manual for more information, but in general any expression
written in Perl will work.
A convenience function called rfc2822dateHeader is provided to you so you can easily compute properly
formatted dates for use as search parameters. The rfc2822date function can take one or two
parameters itself: the date to format and an optional offset. To use the current time as a
search parameter, you can write this:
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{rfc2822dateHeader("now")}'
The output of {rfc2822dateHeader("now")} looks like this: Wed, 30 Sep 2009 22:44:03 -0700 and
is suitable for use with a date header, like HEADER Delivery-Date.
To use a time in the past relative to the current time or day, you can use a second convenience function
called rfc2822date and write this:
$ check_imap_receive ... --template -s SENTSINCE -s '{rfc2822date("now","-1 day")}'
The output of {rfc2822date("now","-1 day")} looks like this: 29-Sep-2009 and is suitable for use
with BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, and SINCE.
I have seen some email clients use a different format in the Date field,
like September 17, 2009 9:46:51 AM PDT. To specify an arbitrary format like this one, write this:
$ check_imap_receive ... --template -s HEADER -s Delivery-Date -s '{date("%B %e, %Y %i:%M:%S %p %Z","now","-4 hours")}'
You can use BEFORE, ON, SENTBEFORE, SENTON, SENTSINCE, or SINCE to search for messages that arrived
on, before, or after a given day but not on, before, or after a specific time on that day.
To search for messages that arrived on, before, or after a specific time you have to use the
Delivery-Date or another date field, like with -s HEADER -s Delivery-Date in the example above.
See the Date::Manip manual for more information on the allowed expressions for date and delta strings.
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting. Use together with --version to see the default
warning and critical timeout values.
If the selected mailbox was not found, you can use verbosity level 3 (-vvv) to display a list of all
available mailboxes on the server.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Report how many emails are in the mailbox
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s ALL --nodelete
IMAP RECEIVE OK - 1 seconds, 7 found
=head2 Report the email with the highest value
Suppose your mailbox has some emails from an automated script and that a message
from this script typically looks like this (abbreviated):
To: mailuser@server.net
From: autoscript@server.net
Subject: Results of Autoscript
Date: Wed, 09 Nov 2005 08:30:40 -0800
Message-ID: <auto-000000992528@server.net>
Homeruns 5
And further suppose that you are interested in reporting the message that has the
highest number of home runs, and also to leave this message in the mailbox for future
checks, but remove the other matching messages with lesser values:
$ check_imap_receive -H mail.server.net --username mailuser --password mailpass
-s SUBJECT -s "Results of Autoscript" --capture-max "Homeruns (\d+)" --nodelete-captured
IMAP RECEIVE OK - 1 seconds, 3 found, 1 captured, 5 max, 2 deleted
=head2 Troubleshoot your search parameters
Add the --nodelete and --imap-retries=1 parameters to your command line.
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 SEE ALSO
http://nagios.org/
http://search.cpan.org/~djkernen/Mail-IMAPClient-2.2.9/IMAPClient.pod
http://search.cpan.org/~markov/Mail-IMAPClient-3.00/lib/Mail/IMAPClient.pod
=head1 CHANGES
Wed Oct 29 11:00:00 PST 2005
+ version 0.1
Wed Nov 9 09:53:32 PST 2005
+ added delete/nodelete option. deleting found messages is still default behavior.
+ added capture-max option
+ added nodelete-captured option
+ added mailbox option
+ added eval/alarm block to implement -c option
+ now using an inline PluginReport package to generate the report
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 14:00:00 CET 2006 (by Johan Nilsson <johann (at) axis.com>)
+ version 0.2.1
+ added support for multiple polls of imap-server, with specified intervals
Tue Apr 24 21:17:53 PDT 2007
+ now there is an alternate version (same but without embedded perl POD) that is compatible with the new new embedded-perl Nagios feature
+ added patch from Benjamin Ritcey <ben@ritcey.com> for SSL support on machines that have an SSL-enabled
+ version 0.2.3
Fri Apr 27 18:56:50 PDT 2007
+ fixed problem that "Invalid search parameters" was not printed because of missing newline to flush it
+ warnings and critical errors now try to append error messages received from the IMAP client
+ changed connection error to display timeout only if timeout was the error
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ added abbreviations U for username, P for password, m for mailbox
+ fixed bug that imap-check-interval applied even after the last try (imap-retries) when it was not necessary
+ the IMAP expunge command is not sent unless at least one message is deleted
+ fixed bug that the "no messages" warning was printed even if some messages were found
+ version 0.3
Sun Oct 21 14:08:07 PDT 2007
+ added port info to the "could not connect" error message
+ fixed bug that occurred when using --ssl --port 143 which caused port to remain at the default 993 imap/ssl port
+ added clarity shortcuts --search-subject and --search-header
+ port is no longer a required option. defaults to 143 for regular IMAP and 993 for IMAP/SSL
+ version 0.3.1
Sun Oct 21 20:41:56 PDT 2007
+ reworked ssl support to use IO::Socket::SSL instead of the convenience method Mail::IMAPClient->Ssl (which is not included in the standard Mail::IMAPClient package)
+ removed clarity shortcuts (bad idea, code bloat)
+ version 0.4
Tue Dec 4 07:05:27 PST 2007
+ added version check to _read_line workaround for SSL-related bug in Mail::IMAPClient version 2.2.9 ; newer versions fixed the bug
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.1
Sat Dec 15 07:39:59 PST 2007
+ improved compatibility with Nagios embedded perl (ePN)
+ version 0.4.2
Mon Jan 7 21:35:23 PST 2008
+ changed version check for Mail::IMAPClient version 2.2.9 to use string comparison le "2.2.9"
+ fixed bug where script was dying on socket->autoflush when socket does not exist because autoflush was being called before checking the socket object
+ version 0.4.3
Mon Feb 11 19:13:38 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.4.4
Mon May 26 08:33:27 PDT 2008
+ fixed a bug for number captured, it now reflects number of messages captured instead of always returning "1"
+ added --capture-min option to complement --capture-max
+ added --search-critical-min to trigger a CRITICAL alert if number of messages found is less than argument, with default 1.
+ fixed warning and critical messages to use "more than" or "less than" instead of the angle brackets, to make them more web friendly
+ version 0.5
Wed Jul 2 14:59:05 PDT 2008
+ fixed a bug for not finding a message after the first try, by reselecting the mailbox before each search
+ version 0.5.1
Sat Dec 13 08:57:29 PST 2008
+ added --download option to allow local searching of messages (useful if your server has an index that handles searching but it takes a while before new emails show up and you want immediate results), supports only the TEXT, BODY, SUBJECT, and HEADER search keys
+ added --download-max option to set a limit on number of messages downloaded with --download
+ version 0.6.0
Wed Sep 30 23:25:33 PDT 2009
+ fixed --download-max option (was incorrectly looking for --download_max). currently both will work, in the future only --download-max will work
+ added --template option to allow arbitrary substitutions for search parameters, and provided three convenience functions for working with dates
+ added date search criteria to the --download option: SENTBEFORE, SENTON, and SENTSINCE which check the Date header and allow hours and minutes in addition to dates (whereas the IMAP standard only allows dates)
+ added --search-critical-max to trigger a CRITICAL alert if number of messages found is more than argument, disabled by default.
+ fixed a bug in --download --search where messages would match even though they failed the search criteria
+ changed behavior of --download-max to look at the most recent messages first (hopefully); the IMAP protocol doesn't guarantee the order that the messages are returned but I observed that many mail servers return them in chronological order; so now --download-max reverses the order to look at the newer messages first
+ added performance data for use with PNP4Nagios!
+ version 0.7.0
Fri Oct 2 15:22:00 PDT 2009
+ added --search-warning-max and --search-warning-min to trigger a WARNING alert if number of messages is more than or less than the specified number.
+ fixed --download option not to fail with CRITICAL if mailbox is empty; now this can be configured with --search-warning-min or --search-critical-min
+ version 0.7.1
Sat Nov 21 18:27:17 PST 2009
+ fixed problem with using --download option on certain mail servers by turning on the IgnoreSizeErrors feature in IMAPClient
+ added --peek option to prevent marking messages as seen
+ version 0.7.2
Tue Jan 5 12:13:53 PST 2010
+ added error message and exit with unknown status when an unrecognized IMAP search criteria is encountered by the --download --search option
Wed May 5 11:14:51 PDT 2010
+ added mailbox list when mailbox is not found and verbose level 3 is on (-vvv)
+ version 0.7.3
Tue Mar 8 18:58:14 AST 2011
+ updated documentation for --search and --template to mention rfc5032 extensions (thanks to Stuart Henderson)
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.4
Fri Nov 11 01:51:40 AST 2011
+ added --ssl-ca-file option to allow verifying the server certificate against a local .pem file (thanks to Alexandre Bezroutchko)
+ added imap_ssl_cert.pl utility (not in this file) to conveniently save the server's SSL certificates into a local .pem file
+ version 0.7.5
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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<html xmlns="http://www.w3.org/1999/xhtml">
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<title>check_smtp_send - connects to an SMTP server and sends a message</title>
<link rel="stylesheet" href="plainwhite.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:jonathan@greek.local" />
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<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#options">OPTIONS</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<ul>
<li><a href="#send_a_message_with_custom_headers">Send a message with custom headers</a></li>
</ul>
<li><a href="#exit_codes">EXIT CODES</a></li>
<li><a href="#nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></li>
<li><a href="#changes">CHANGES</a></li>
<li><a href="#author">AUTHOR</a></li>
<li><a href="#copyright_and_license">COPYRIGHT AND LICENSE</a></li>
</ul>
-->
</div>
<!-- INDEX END -->
<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>check_smtp_send - connects to an SMTP server and sends a message</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
check_smtp_send -vV
check_smtp_send -?
check_smtp_send --help</pre>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="warning_seconds" class="item">--warning &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Warn if it takes longer than &lt;seconds&gt; to connect to the SMTP server. Default is 15 seconds.
Also known as: -w &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="critical_seconds" class="item">--critical &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Return a critical status if it takes longer than &lt;seconds&gt; to connect to the SMTP server. Default is 30 seconds.
Also known as: -c &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="timeout_seconds" class="item">--timeout &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Abort with critical status if it takes longer than &lt;seconds&gt; to connect to the SMTP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="hostname_server" class="item">--hostname &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the SMTP server. Examples: mail.server.com, localhost, 192.168.1.100</p>
<p>If not provided, and if there is only one --mailto address, the script will automatically look up the MX record
for the --mailto address and use that as the hostname. You can use this to check that your MX records are correct.
When omitting the --hostname option, it doesn't really make sense to specify --port, --username, or --password
but you can still do so and they will have their normal effect. To look up the MX records you need to have the
module Net::DNS and Email::Address installed.</p>
<p>Also known as: -H &lt;server&gt;</p>
</dd>
<dt><strong><a name="port_number" class="item">--port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the SMTP server. Default is 25 for regular SMTP, 465 for SSL, and 587 for TLS.
Also known as: -p &lt;number&gt;</p>
</dd>
<dt><strong><a name="tls" class="item">--tls</a></strong></dt>
<dt><strong><a name="notls" class="item">--notls</a></strong></dt>
<dd>
<p>Enable TLS/AUTH protocol. Requires Net::SMTP::TLS, availble on CPAN.</p>
<p>When using this option, the default port is 587.
You can specify a port from the command line using the --port option.</p>
<p>Use the notls option to turn off the tls option.</p>
<p>Also, you may need to fix your copy of Net::SMTP::TLS. Here is the diff against version 0.12:</p>
<pre>
254c254
&lt; $me-&gt;_command(sprintf(&quot;AUTH PLAIN %S&quot;,
---
&gt; $me-&gt;_command(sprintf(&quot;AUTH PLAIN %s&quot;,</pre>
</dd>
<dt><strong><a name="ssl" class="item">--ssl</a></strong></dt>
<dt><strong><a name="nossl" class="item">--nossl</a></strong></dt>
<dd>
<p>Enable SSL protocol. Requires Net::SMTP::SSL and Authen::SASL, availble on CPAN.</p>
<p>When using this option, the default port is 465. You can override with the --port option.</p>
<p>Use the nossl option to turn off the ssl option.</p>
</dd>
<dt><strong><a name="auth_method" class="item">--auth &lt;method&gt;</a></strong></dt>
<dd>
<p>Enable authentication with Net::SMTP_auth (sold separately).
For example, try using --auth PLAIN or --auth CRAM-MD5.</p>
</dd>
<dt><strong><a name="username_username" class="item">--username &lt;username&gt;</a></strong></dt>
<dt><strong><a name="password_password" class="item">--password &lt;password&gt;</a></strong></dt>
<dd>
<p>Username and password to use when connecting to SMTP server.
Also known as: -U &lt;username&gt; -P &lt;password&gt;</p>
</dd>
<dt><strong><a name="body_message" class="item">--body &lt;message&gt;</a></strong></dt>
<dd>
<p>Use this option to specify the body of the email message. If you need newlines in your message,
you might need to use the --stdin option instead.</p>
</dd>
<dt><strong><a name="header_header" class="item">--header &lt;header&gt;</a></strong></dt>
<dd>
<p>Use this option to set an arbitrary header in the message. You can use it multiple times.</p>
</dd>
<dt><strong><a name="stdin" class="item">--stdin</a></strong></dt>
<dd>
<p>Grab the body of the email message from stdin.</p>
</dd>
<dt><strong><a name="mailto_recipient_your_net" class="item">--mailto <a href="mailto:recipient@your.net">recipient@your.net</a></a></strong></dt>
<dd>
<p>You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):</p>
<p>$ check_smtp_send -H mail.server.net --mailto <a href="mailto:recipient@your.net,recipient2@your.net">recipient@your.net,recipient2@your.net</a> --mailfrom <a href="mailto:sender@your.net">sender@your.net</a></p>
<p>SMTP SEND OK - 1 seconds</p>
</dd>
<dt><strong><a name="mailfrom_sender_your_net" class="item">--mailfrom <a href="mailto:sender@your.net">sender@your.net</a></a></strong></dt>
<dd>
<p>Use this option to set the &quot;from&quot; address in the email.</p>
</dd>
<dt><strong><a name="template" class="item">--template</a></strong></dt>
<dt><strong><a name="notemplate" class="item">--notemplate</a></strong></dt>
<dd>
<p>Enable (or disable) processing of message body and headers. Requires Text::Template.</p>
<p>Use this option to apply special processing to your message body and headers that allows you to use the
results of arbitrary computations in the text. For example, you can use this feature to send a message
containing the hostname of the machine that sent the message without customizing the plugin configuration
on each machine.</p>
<p>When you enable the --template option, the message body and headers are parsed by
Text::Template. Even a message body provided using the --stdin option will be parsed.
See the Text::Template manual for more information, but in general any expression
written in Perl will work.</p>
<p>There is one convenience function provided to you, trim, which will remove leading and trailing whitespace
from its parameter. Here's an example:</p>
<pre>
check_smtp_send -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--template --body 'hello, this message is from {use Sys::Hostname; hostname}'
--header 'Subject: test message from {trim(`whoami`)}'</pre>
</dd>
<dt><strong><a name="expect_response_code" class="item">--expect-response &lt;code&gt;</a></strong></dt>
<dd>
<p>Use this option to specify which SMTP response code should be expected from the server
after the SMTP dialog is complete. The default is 250 (message accepted).</p>
<p>Also known as: -E &lt;code&gt;</p>
</dd>
<dt><strong><a name="hires" class="item">--hires</a></strong></dt>
<dd>
<p>Use the Time::HiRes module to measure time, if available.</p>
</dd>
<dt><strong><a name="verbose" class="item">--verbose</a></strong></dt>
<dd>
<p>Display additional information. Useful for troubleshooting.</p>
<p>One --verbose will show extra information for OK, WARNING, and CRITICAL status.</p>
<p>Use one --verbose together with --version to see the default warning and critical timeout values.</p>
<p>Three --verbose (or -vvv) will show debug information, unless you're using --tls because Net::SMTP::TLS
does not have a Debug feature.</p>
<p>Also known as: -v</p>
</dd>
<dt><strong><a name="version" class="item">--version</a></strong></dt>
<dd>
<p>Display plugin version and exit.
Also known as: -V</p>
</dd>
<dt><strong><a name="help" class="item">--help</a></strong></dt>
<dd>
<p>Display this documentation and exit. Does not work in the ePN version.
Also known as: -h</p>
</dd>
<dt><strong><a name="usage" class="item">--usage</a></strong></dt>
<dd>
<p>Display a short usage instruction and exit.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>
</p>
<h2><a name="send_a_message_with_custom_headers">Send a message with custom headers</a></h2>
<p>$ check_smtp_send -H mail.server.net --mailto <a href="mailto:recipient@your.net">recipient@your.net</a> --mailfrom <a href="mailto:sender@your.net">sender@your.net</a>
--body 'Homeruns 5' --header 'Subject: Hello, world!' --header 'X-Your-Header: Yes'</p>
<p>SMTP SEND OK - 1 seconds</p>
<p>
</p>
<hr />
<h1><a name="exit_codes">EXIT CODES</a></h1>
<p><table cellspacing="0" cellpadding="0"><tr><td>Complies with the Nagios plug-in specification:
<tr><td> 0<td>OK<td>The plugin was able to check the service and it appeared to be functioning properly
<tr><td> 1<td>Warning<td>The plugin was able to check the service, but it appeared to be above some &quot;warning&quot; threshold or did not appear to be working properly
<tr><td> 2<td>Critical<td>The plugin detected that either the service was not running or it was above some &quot;critical&quot; threshold
<tr><td> 3<td>Unknown<td>Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service</table></p>
<p>
</p>
<hr />
<h1><a name="nagios_plugin_notes">NAGIOS PLUGIN NOTES</a></h1>
<p>Nagios plugin reference: <a href="http://nagiosplug.sourceforge.net/developer-guidelines.html">http://nagiosplug.sourceforge.net/developer-guidelines.html</a></p>
<p>This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.</p>
<p>Other than that, it attempts to follow published guidelines for Nagios plugins.</p>
<p>
</p>
<hr />
<h1><a name="changes">CHANGES</a></h1>
<pre>
Wed Oct 29 14:05:00 PST 2005
+ version 0.1</pre>
<pre>
Wed Nov 9 15:01:48 PST 2005
+ now using an inline PluginReport package to generate the report
+ added stdin option
+ copyright notice and GNU GPL
+ version 0.2</pre>
<pre>
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton &lt;geoff.crompton@strategicdata.com.au&gt;)
+ added bailing if the $smtp-&gt;to() call fails
+ added support for mailto recipients separated by commas
+ version 0.2.1</pre>
<pre>
Tue Apr 24 21:17:53 PDT 2007
+ moved POD text to separate file in order to accomodate the new embedded-perl Nagios feature
+ version 0.2.3</pre>
<pre>
Fri Apr 27 20:26:42 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ version 0.3
Sun Oct 21 10:34:14 PDT 2007
+ added support for TLS and authentication via the Net::SMTP::TLS module. see --tls option.
+ version 0.4</pre>
<pre>
Sun Oct 21 13:54:26 PDT 2007
+ added support for SSL via the Net::SMTP::SSL module. see --ssl option.
+ port is no longer a required option. defaults to 25 for regular smtp, 465 for ssl, and 587 for tls.
+ added port info to the &quot;could not connect&quot; error message
+ version 0.4.1</pre>
<pre>
Tue Dec 4 07:42:32 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.2</pre>
<pre>
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable &quot;%status&quot; will not stay shared in load_modules
+ version 0.4.3</pre>
<pre>
Mon May 26 09:12:14 PDT 2008
+ fixed warning and critical messages to use &quot;more than&quot; or &quot;less than&quot; instead of the angle brackets, to make them more web friendly
+ version 0.4.4
Wed Jul 2 07:12:35 PDT 2008
+ added --expect-response option submitted by Christian Kauhaus &lt;kc@gocept.com&gt;
+ added support for authentication via Net::SMTP_auth. see --auth option.
+ version 0.4.5</pre>
<pre>
Sun Oct 5 15:18:23 PDT 2008
+ added error handling for smtp server disconnects ungracefully during QUIT (gmail.com does)
+ version 0.4.6</pre>
<pre>
Thu Oct 1 12:09:35 PDT 2009
+ added --template option to allow arbitrary substitutions for body and headers, and provided one convenience function for trimming strings
+ added performance data for use with PNP4Nagios!
+ version 0.5.0</pre>
<pre>
Thu Oct 8 11:17:04 PDT 2009
+ added more detailed error messages when using --verbose
+ version 0.5.1</pre>
<pre>
Tue Feb 9 12:14:49 PST 2010
+ added support for combining --auth with --tls using a subclass of Net::SMTP::TLS submitted by Brad Guillory; please note that to use the &quot;PLAIN&quot; authentication type you need to patch your Net::SMTP:TLS because it has a bug in sub auth_PLAIN (sprintf %S instead of %s)
+ version 0.5.2</pre>
<pre>
Mon Jan 3 10:39:42 PST 2011
+ added default Date and Message-ID headers; Date header uses POSIX strftime and Message-ID header uses hostname command to get localhost name
+ version 0.7.0</pre>
<pre>
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1</pre>
<pre>
Wed Jul 6 19:18:26 AST 2011
+ the --hostname is now optional; if not provided the plugin will lookup the MX record for the --mailto address (requires Net::DNS)
+ version 0.7.2</pre>
<pre>
Tue Dec 13 09:24:04 PST 2011
+ separated authentication errors from connection errors
+ version 0.7.3</pre>
<p>
</p>
<hr />
<h1><a name="author">AUTHOR</a></h1>
<p>Jonathan Buhacoff &lt;<a href="mailto:jonathan@buhacoff.net">jonathan@buhacoff.net</a>&gt;</p>
<p>
</p>
<hr />
<h1><a name="copyright_and_license">COPYRIGHT AND LICENSE</a></h1>
<pre>
Copyright (C) 2005-2011 Jonathan Buhacoff</pre>
<pre>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.</pre>
<pre>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</pre>
<pre>
You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/&gt">http://www.gnu.org/licenses/&gt</a>;.</pre>
<pre>
<a href="http://www.gnu.org/licenses/gpl.txt">http://www.gnu.org/licenses/gpl.txt</a></pre>
</body>
</html>

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View File

@ -0,0 +1,324 @@
=pod
=head1 NAME
check_smtp_send - connects to an SMTP server and sends a message
=head1 SYNOPSIS
check_smtp_send -vV
check_smtp_send -?
check_smtp_send --help
=head1 OPTIONS
=over
=item --warning <seconds>
Warn if it takes longer than <seconds> to connect to the SMTP server. Default is 15 seconds.
Also known as: -w <seconds>
=item --critical <seconds>
Return a critical status if it takes longer than <seconds> to connect to the SMTP server. Default is 30 seconds.
Also known as: -c <seconds>
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the SMTP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the SMTP server. Examples: mail.server.com, localhost, 192.168.1.100
If not provided, and if there is only one --mailto address, the script will automatically look up the MX record
for the --mailto address and use that as the hostname. You can use this to check that your MX records are correct.
When omitting the --hostname option, it doesn't really make sense to specify --port, --username, or --password
but you can still do so and they will have their normal effect. To look up the MX records you need to have the
module Net::DNS and Email::Address installed.
Also known as: -H <server>
=item --port <number>
Service port on the SMTP server. Default is 25 for regular SMTP, 465 for SSL, and 587 for TLS.
Also known as: -p <number>
=item --tls
=item --notls
Enable TLS/AUTH protocol. Requires Net::SMTP::TLS, availble on CPAN.
When using this option, the default port is 587.
You can specify a port from the command line using the --port option.
Use the notls option to turn off the tls option.
Also, you may need to fix your copy of Net::SMTP::TLS. Here is the diff against version 0.12:
254c254
< $me->_command(sprintf("AUTH PLAIN %S",
---
> $me->_command(sprintf("AUTH PLAIN %s",
=item --ssl
=item --nossl
Enable SSL protocol. Requires Net::SMTP::SSL and Authen::SASL, availble on CPAN.
When using this option, the default port is 465. You can override with the --port option.
Use the nossl option to turn off the ssl option.
=item --auth <method>
Enable authentication with Net::SMTP_auth (sold separately).
For example, try using --auth PLAIN or --auth CRAM-MD5.
=item --username <username>
=item --password <password>
Username and password to use when connecting to SMTP server.
Also known as: -U <username> -P <password>
=item --body <message>
Use this option to specify the body of the email message. If you need newlines in your message,
you might need to use the --stdin option instead.
=item --header <header>
Use this option to set an arbitrary header in the message. You can use it multiple times.
=item --stdin
Grab the body of the email message from stdin.
=item --mailto recipient@your.net
You can send a message to multiple recipients by repeating this option or by separating
the email addresses with commas (no whitespace allowed):
$ check_smtp_send -H mail.server.net --mailto recipient@your.net,recipient2@your.net --mailfrom sender@your.net
SMTP SEND OK - 1 seconds
=item --mailfrom sender@your.net
Use this option to set the "from" address in the email.
=item --template
=item --notemplate
Enable (or disable) processing of message body and headers. Requires Text::Template.
Use this option to apply special processing to your message body and headers that allows you to use the
results of arbitrary computations in the text. For example, you can use this feature to send a message
containing the hostname of the machine that sent the message without customizing the plugin configuration
on each machine.
When you enable the --template option, the message body and headers are parsed by
Text::Template. Even a message body provided using the --stdin option will be parsed.
See the Text::Template manual for more information, but in general any expression
written in Perl will work.
There is one convenience function provided to you, trim, which will remove leading and trailing whitespace
from its parameter. Here's an example:
check_smtp_send -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--template --body 'hello, this message is from {use Sys::Hostname; hostname}'
--header 'Subject: test message from {trim(`whoami`)}'
=item --expect-response <code>
Use this option to specify which SMTP response code should be expected from the server
after the SMTP dialog is complete. The default is 250 (message accepted).
Also known as: -E <code>
=item --hires
Use the Time::HiRes module to measure time, if available.
=item --verbose
Display additional information. Useful for troubleshooting.
One --verbose will show extra information for OK, WARNING, and CRITICAL status.
Use one --verbose together with --version to see the default warning and critical timeout values.
Three --verbose (or -vvv) will show debug information, unless you're using --tls because Net::SMTP::TLS
does not have a Debug feature.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit. Does not work in the ePN version.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Send a message with custom headers
$ check_smtp_send -H mail.server.net --mailto recipient@your.net --mailfrom sender@your.net
--body 'Homeruns 5' --header 'Subject: Hello, world!' --header 'X-Your-Header: Yes'
SMTP SEND OK - 1 seconds
=head1 EXIT CODES
Complies with the Nagios plug-in specification:
0 OK The plugin was able to check the service and it appeared to be functioning properly
1 Warning The plugin was able to check the service, but it appeared to be above some "warning" threshold or did not appear to be working properly
2 Critical The plugin detected that either the service was not running or it was above some "critical" threshold
3 Unknown Invalid command line arguments were supplied to the plugin or the plugin was unable to check the status of the given hosts/service
=head1 NAGIOS PLUGIN NOTES
Nagios plugin reference: http://nagiosplug.sourceforge.net/developer-guidelines.html
This plugin does NOT use Nagios DEFAULT_SOCKET_TIMEOUT (provided by utils.pm as $TIMEOUT) because
the path to utils.pm must be specified completely in this program and forces users to edit the source
code if their install location is different (if they realize this is the problem). You can view
the default timeout for this module by using the --verbose and --version options together. The
short form is -vV.
Other than that, it attempts to follow published guidelines for Nagios plugins.
=head1 CHANGES
Wed Oct 29 14:05:00 PST 2005
+ version 0.1
Wed Nov 9 15:01:48 PST 2005
+ now using an inline PluginReport package to generate the report
+ added stdin option
+ copyright notice and GNU GPL
+ version 0.2
Thu Apr 20 16:00:00 PST 2006 (by Geoff Crompton <geoff.crompton@strategicdata.com.au>)
+ added bailing if the $smtp->to() call fails
+ added support for mailto recipients separated by commas
+ version 0.2.1
Tue Apr 24 21:17:53 PDT 2007
+ moved POD text to separate file in order to accomodate the new embedded-perl Nagios feature
+ version 0.2.3
Fri Apr 27 20:26:42 PDT 2007
+ documentation now mentions every command-line option accepted by the plugin, including abbreviations
+ version 0.3
Sun Oct 21 10:34:14 PDT 2007
+ added support for TLS and authentication via the Net::SMTP::TLS module. see --tls option.
+ version 0.4
Sun Oct 21 13:54:26 PDT 2007
+ added support for SSL via the Net::SMTP::SSL module. see --ssl option.
+ port is no longer a required option. defaults to 25 for regular smtp, 465 for ssl, and 587 for tls.
+ added port info to the "could not connect" error message
+ version 0.4.1
Tue Dec 4 07:42:32 PST 2007
+ added --usage option because the official nagios plugins have both --help and --usage
+ added --timeout option to match the official nagios plugins
+ fixed some minor pod formatting issues for perldoc
+ version 0.4.2
Mon Feb 11 19:09:37 PST 2008
+ fixed a bug for embedded perl version, variable "%status" will not stay shared in load_modules
+ version 0.4.3
Mon May 26 09:12:14 PDT 2008
+ fixed warning and critical messages to use "more than" or "less than" instead of the angle brackets, to make them more web friendly
+ version 0.4.4
Wed Jul 2 07:12:35 PDT 2008
+ added --expect-response option submitted by Christian Kauhaus <kc@gocept.com>
+ added support for authentication via Net::SMTP_auth. see --auth option.
+ version 0.4.5
Sun Oct 5 15:18:23 PDT 2008
+ added error handling for smtp server disconnects ungracefully during QUIT (gmail.com does)
+ version 0.4.6
Thu Oct 1 12:09:35 PDT 2009
+ added --template option to allow arbitrary substitutions for body and headers, and provided one convenience function for trimming strings
+ added performance data for use with PNP4Nagios!
+ version 0.5.0
Thu Oct 8 11:17:04 PDT 2009
+ added more detailed error messages when using --verbose
+ version 0.5.1
Tue Feb 9 12:14:49 PST 2010
+ added support for combining --auth with --tls using a subclass of Net::SMTP::TLS submitted by Brad Guillory; please note that to use the "PLAIN" authentication type you need to patch your Net::SMTP:TLS because it has a bug in sub auth_PLAIN (sprintf %S instead of %s)
+ version 0.5.2
Mon Jan 3 10:39:42 PST 2011
+ added default Date and Message-ID headers; Date header uses POSIX strftime and Message-ID header uses hostname command to get localhost name
+ version 0.7.0
Fri May 6 08:35:09 AST 2011
+ added --hires option to enable use of Time::Hires if available
+ version 0.7.1
Wed Jul 6 19:18:26 AST 2011
+ the --hostname is now optional; if not provided the plugin will lookup the MX record for the --mailto address (requires Net::DNS)
+ version 0.7.2
Tue Dec 13 09:24:04 PST 2011
+ separated authentication errors from connection errors
+ version 0.7.3
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2005-2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file</title>
<link rel="stylesheet" href="plainwhite.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:jonathan@greek.local" />
</head>
<body>
<!-- INDEX BEGIN -->
<div name="index">
<p><a name="__index__"></a></p>
<!--
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#dependencies">DEPENDENCIES</a></li>
<li><a href="#options">OPTIONS</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<ul>
<li><a href="#print_the_server_s_ssl_certificate_chain">Print the server's SSL certificate chain</a></li>
</ul>
<li><a href="#see_also">SEE ALSO</a></li>
<li><a href="#changes">CHANGES</a></li>
<li><a href="#author">AUTHOR</a></li>
<li><a href="#copyright_and_license">COPYRIGHT AND LICENSE</a></li>
</ul>
-->
</div>
<!-- INDEX END -->
<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
imap_ssl_cert -H imap.server.com &gt; server_ca_file.pem
imap_ssl_cert -?
imap_ssl_cert --help</pre>
<p>
</p>
<hr />
<h1><a name="dependencies">DEPENDENCIES</a></h1>
<p>This utility requires the following perl modules to be installed:</p>
<p>Getopt::Long
Mail::IMAPClient
IO::Socket::SSL
Net::SSLeay</p>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="timeout_seconds" class="item">--timeout &lt;seconds&gt;</a></strong></dt>
<dd>
<p>Abort with critical status if it takes longer than &lt;seconds&gt; to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t &lt;seconds&gt;</p>
</dd>
<dt><strong><a name="hostname_server" class="item">--hostname &lt;server&gt;</a></strong></dt>
<dd>
<p>Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H &lt;server&gt;</p>
</dd>
<dt><strong><a name="port_number" class="item">--port &lt;number&gt;</a></strong></dt>
<dd>
<p>Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p &lt;number&gt;</p>
</dd>
<dt><strong><a name="verbose" class="item">--verbose</a></strong></dt>
<dd>
<p>Display additional information. Useful for troubleshooting.</p>
<p>Also known as: -v</p>
</dd>
<dt><strong><a name="version" class="item">--version</a></strong></dt>
<dd>
<p>Display plugin version and exit.
Also known as: -V</p>
</dd>
<dt><strong><a name="help" class="item">--help</a></strong></dt>
<dd>
<p>Display this documentation and exit.
Also known as: -h</p>
</dd>
<dt><strong><a name="usage" class="item">--usage</a></strong></dt>
<dd>
<p>Display a short usage instruction and exit.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>
</p>
<h2><a name="print_the_server_s_ssl_certificate_chain">Print the server's SSL certificate chain</a></h2>
<pre>
$ perl imap_ssl_cert.pl -H imap.server.com &gt; ca_file.pem
$ cat ca_file.pem</pre>
<pre>
-----BEGIN CERTIFICATE-----
MIID1zCCAr+gAwIBAgIQPr3bVk0SkuXygjxgA7EVGDANBgkqhkiG9w0BAQUFADA8
[...snip...]
0FF4warjskrfqaVtWeIV58LJheaM4cPJkc2M
-----END CERTIFICATE-----</pre>
<pre>
$ openssl x509 -in ca_file.pem -text</pre>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><a href="http://en.wikipedia.org/wiki/X.509">http://en.wikipedia.org/wiki/X.509</a>
<a href="http://en.wikipedia.org/wiki/Privacy_Enhanced_Mail">http://en.wikipedia.org/wiki/Privacy_Enhanced_Mail</a>
<a href="http://tools.ietf.org/html/rfc1422">http://tools.ietf.org/html/rfc1422</a>
<a href="http://search.cpan.org/~mikem/Net-SSLeay-1.42/lib/Net/SSLeay.pm">http://search.cpan.org/~mikem/Net-SSLeay-1.42/lib/Net/SSLeay.pm</a>
<a href="http://search.cpan.org/~plobbes/Mail-IMAPClient-3.29/lib/Mail/IMAPClient.pod">http://search.cpan.org/~plobbes/Mail-IMAPClient-3.29/lib/Mail/IMAPClient.pod</a></p>
<p>
</p>
<hr />
<h1><a name="changes">CHANGES</a></h1>
<pre>
Fri Nov 11 03:38:13 AST 2011
+ version 0.1</pre>
<p>
</p>
<hr />
<h1><a name="author">AUTHOR</a></h1>
<p>Jonathan Buhacoff &lt;<a href="mailto:jonathan@buhacoff.net">jonathan@buhacoff.net</a>&gt;</p>
<p>
</p>
<hr />
<h1><a name="copyright_and_license">COPYRIGHT AND LICENSE</a></h1>
<pre>
Copyright (C) 2011 Jonathan Buhacoff</pre>
<pre>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.</pre>
<pre>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</pre>
<pre>
You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;<a href="http://www.gnu.org/licenses/&gt">http://www.gnu.org/licenses/&gt</a>;.</pre>
<pre>
<a href="http://www.gnu.org/licenses/gpl.txt">http://www.gnu.org/licenses/gpl.txt</a></pre>
</body>
</html>

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=pod
=head1 NAME
imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file
=head1 SYNOPSIS
imap_ssl_cert -H imap.server.com > server_ca_file.pem
imap_ssl_cert -?
imap_ssl_cert --help
=head1 DEPENDENCIES
This utility requires the following perl modules to be installed:
Getopt::Long
Mail::IMAPClient
IO::Socket::SSL
Net::SSLeay
=head1 OPTIONS
=over
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --verbose
Display additional information. Useful for troubleshooting.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Print the server's SSL certificate chain
$ perl imap_ssl_cert.pl -H imap.server.com > ca_file.pem
$ cat ca_file.pem
-----BEGIN CERTIFICATE-----
MIID1zCCAr+gAwIBAgIQPr3bVk0SkuXygjxgA7EVGDANBgkqhkiG9w0BAQUFADA8
[...snip...]
0FF4warjskrfqaVtWeIV58LJheaM4cPJkc2M
-----END CERTIFICATE-----
$ openssl x509 -in ca_file.pem -text
=head1 SEE ALSO
http://en.wikipedia.org/wiki/X.509
http://en.wikipedia.org/wiki/Privacy_Enhanced_Mail
http://tools.ietf.org/html/rfc1422
http://search.cpan.org/~mikem/Net-SSLeay-1.42/lib/Net/SSLeay.pm
http://search.cpan.org/~plobbes/Mail-IMAPClient-3.29/lib/Mail/IMAPClient.pod
=head1 CHANGES
Fri Nov 11 03:38:13 AST 2011
+ version 0.1
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

236
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#!/usr/bin/perl
use strict;
my $VERSION = '0.1';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
use Getopt::Long;
use Mail::IMAPClient;
use IO::Socket::SSL;
use Net::SSLeay;
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $timeout = 60;
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
# time
"t|timeout=i"=>\$timeout
);
if( $show_version ) {
print "$VERSION\n";
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $help_usage
||
( $imap_server eq "" )
) {
print "Usage: $0 -H host [-p port]\n";
exit $status{UNKNOWN};
}
my @certs = (); # we have to store the certs we get Net::SSLeay here so that we can output them in REVERSE order (server cert first, root cert last)
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
$imap_port = $default_imap_ssl_port unless $imap_port;
my $socket = IO::Socket::SSL->new(
PeerAddr => "$imap_server:$imap_port",
SSL_verify_mode => 1,
SSL_ca_file => undef,
SSL_verifycn_scheme => 'imap',
SSL_verifycn_name => $imap_server,
SSL_verify_callback => \&ssl_printer
);
die IO::Socket::SSL::errstr() unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
# $imap->User($username);
# $imap->Password($password);
# $imap->login() or die "Cannot login: $@";
print join("\n",reverse(@certs));
alarm 0;
};
if( $@ ) {
chomp $@;
print "Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
# deselect the mailbox
$imap->close();
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
exit $status{OK};
# see IO::Socket::SSL documentation for SSL_verify_callback:
sub ssl_printer {
my ($boolOpenSSLResult, $cmemCertificateStore, $strCertIssuerOwnerAttr, $strError, $cmemPeerCertificate) = @_;
warn "OpenSSL says certificate is " . ( $boolOpenSSLResult ? "valid" : "invalid" ) if $verbose > 0;
warn "Peer certificate: $strCertIssuerOwnerAttr" if $verbose > 0;
warn "Errors: $strError" if $verbose > 0;
#print Net::SSLeay::PEM_get_string_X509($cmemPeerCertificate);
push @certs, $strCertIssuerOwnerAttr . "\n" . Net::SSLeay::PEM_get_string_X509($cmemPeerCertificate);
}
package main;
1;
__END__
=pod
=head1 NAME
imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file
=head1 SYNOPSIS
imap_ssl_cert -H imap.server.com > server_ca_file.pem
imap_ssl_cert -?
imap_ssl_cert --help
=head1 DEPENDENCIES
This utility requires the following perl modules to be installed:
Getopt::Long
Mail::IMAPClient
IO::Socket::SSL
Net::SSLeay
=head1 OPTIONS
=over
=item --timeout <seconds>
Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds.
The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to
connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer
than 30 seconds.
Also known as: -t <seconds>
=item --hostname <server>
Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100
Also known as: -H <server>
=item --port <number>
Service port on the IMAP server. Default is 143. If you use SSL, default is 993.
Also known as: -p <number>
=item --verbose
Display additional information. Useful for troubleshooting.
Also known as: -v
=item --version
Display plugin version and exit.
Also known as: -V
=item --help
Display this documentation and exit.
Also known as: -h
=item --usage
Display a short usage instruction and exit.
=back
=head1 EXAMPLES
=head2 Print the server's SSL certificate chain
$ perl imap_ssl_cert.pl -H imap.server.com > ca_file.pem
$ cat ca_file.pem
-----BEGIN CERTIFICATE-----
MIID1zCCAr+gAwIBAgIQPr3bVk0SkuXygjxgA7EVGDANBgkqhkiG9w0BAQUFADA8
[...snip...]
0FF4warjskrfqaVtWeIV58LJheaM4cPJkc2M
-----END CERTIFICATE-----
$ openssl x509 -in ca_file.pem -text
=head1 SEE ALSO
http://en.wikipedia.org/wiki/X.509
http://en.wikipedia.org/wiki/Privacy_Enhanced_Mail
http://tools.ietf.org/html/rfc1422
http://search.cpan.org/~mikem/Net-SSLeay-1.42/lib/Net/SSLeay.pm
http://search.cpan.org/~plobbes/Mail-IMAPClient-3.29/lib/Mail/IMAPClient.pod
=head1 CHANGES
Fri Nov 11 03:38:13 AST 2011
+ version 0.1
=head1 AUTHOR
Jonathan Buhacoff <jonathan@buhacoff.net>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2011 Jonathan Buhacoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
http://www.gnu.org/licenses/gpl.txt
=cut

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#!/usr/bin/perl
use strict;
my $VERSION = '0.1';
my $COPYRIGHT = 'Copyright (C) 2005-2011 Jonathan Buhacoff <jonathan@buhacoff.net>';
my $LICENSE = 'http://www.gnu.org/licenses/gpl.txt';
my %status = ( 'OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3 );
use Getopt::Long;
use Mail::IMAPClient;
use IO::Socket::SSL;
use Net::SSLeay;
# get options from command line
Getopt::Long::Configure("bundling");
my $verbose = 0;
my $help = "";
my $help_usage = "";
my $show_version = "";
my $imap_server = "";
my $default_imap_port = "143";
my $default_imap_ssl_port = "993";
my $imap_port = "";
my $timeout = 60;
my $ok;
$ok = Getopt::Long::GetOptions(
"V|version"=>\$show_version,
"v|verbose+"=>\$verbose,"h|help"=>\$help,"usage"=>\$help_usage,
# imap settings
"H|hostname=s"=>\$imap_server,"p|port=i"=>\$imap_port,
# time
"t|timeout=i"=>\$timeout
);
if( $show_version ) {
print "$VERSION\n";
exit $status{UNKNOWN};
}
if( $help ) {
exec "perldoc", $0 or print "Try `perldoc $0`\n";
exit $status{UNKNOWN};
}
if( $help_usage
||
( $imap_server eq "" )
) {
print "Usage: $0 -H host [-p port]\n";
exit $status{UNKNOWN};
}
my @certs = (); # we have to store the certs we get Net::SSLeay here so that we can output them in REVERSE order (server cert first, root cert last)
# connect to IMAP server
print "connecting to server $imap_server\n" if $verbose > 2;
my $imap;
eval {
local $SIG{ALRM} = sub { die "exceeded timeout $timeout seconds\n" }; # NB: \n required, see `perldoc -f alarm`
alarm $timeout;
$imap_port = $default_imap_ssl_port unless $imap_port;
my $socket = IO::Socket::SSL->new(
PeerAddr => "$imap_server:$imap_port",
SSL_verify_mode => 1,
SSL_ca_file => undef,
SSL_verifycn_scheme => 'imap',
SSL_verifycn_name => $imap_server,
SSL_verify_callback => \&ssl_printer
);
die IO::Socket::SSL::errstr() unless $socket;
$socket->autoflush(1);
$imap = Mail::IMAPClient->new(Socket=>$socket, Debug => 0 );
$imap->State(Mail::IMAPClient->Connected);
$imap->_read_line() if "$Mail::IMAPClient::VERSION" le "2.2.9"; # necessary to remove the server's "ready" line from the input buffer for old versions of Mail::IMAPClient. Using string comparison for the version check because the numeric didn't work on Darwin and for Mail::IMAPClient the next version is 2.3.0 and then 3.00 so string comparison works
# $imap->User($username);
# $imap->Password($password);
# $imap->login() or die "Cannot login: $@";
print join("\n",reverse(@certs));
alarm 0;
};
if( $@ ) {
chomp $@;
print "Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
unless( $imap ) {
print "Could not connect to $imap_server port $imap_port: $@\n";
exit $status{CRITICAL};
}
# deselect the mailbox
$imap->close();
# disconnect from IMAP server
print "disconnecting from server\n" if $verbose > 2;
$imap->logout();
exit $status{OK};
# see IO::Socket::SSL documentation for SSL_verify_callback:
sub ssl_printer {
my ($boolOpenSSLResult, $cmemCertificateStore, $strCertIssuerOwnerAttr, $strError, $cmemPeerCertificate) = @_;
warn "OpenSSL says certificate is " . ( $boolOpenSSLResult ? "valid" : "invalid" ) if $verbose > 0;
warn "Peer certificate: $strCertIssuerOwnerAttr" if $verbose > 0;
warn "Errors: $strError" if $verbose > 0;
#print Net::SSLeay::PEM_get_string_X509($cmemPeerCertificate);
push @certs, $strCertIssuerOwnerAttr . "\n" . Net::SSLeay::PEM_get_string_X509($cmemPeerCertificate);
}
package main;
1;

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Summary: A Nagios plugin to check IMAP delivery times
#Name: check_email_delivery
Name: nagios-plugins-check_email_delivery
Version: 0.7.1a
Release: 0.2%{?dist}
License: GPLv2
Group: Applications/System
URL: http://buhacoff.net/software/check_email_delivery/
Source0: http://buhacoff.net/software/check_email_delivery/archive/check_email_delivery-%{version}.tar.gz
#http://exchange.nagios.org/components/com_mtree/attachment.php?link_id=1339&cf_id=30
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
# For handling --help options
Requires: /usr/bin/nroff
%description
The Nagios email delivery plugin uses two other plugins
(smtp send and imap receive), also included, to send a message
to an email account and then check that account for the message
and delete it. The plugin times how long it takes for the
message to be delivered and the warning and critical thresholds
are for this elapsed time.
%prep
#%setup -q
%setup -n check_email_delivery-%{version}
# Avoid filenames with unnecessary punction in them
%{__mv} "./docs/check_smtp_send (Greek's conflicted copy 2011-08-24).pod" \
./docs/check_smtp_send-Greeks-conflicted-copy-2011-08-24.pod
%{__mv} "docs/How to connect to IMAP server manually.txt" \
docs/How-to-connect-to-IMAP-server-manually.txt
%build
# No build required, just drop in place
%install
rm -rf $RPM_BUILD_ROOT
%{__install} -d -m0755 %{buildroot}%{_libdir}/nagios/plugins
# No instlalation procedure, install manually
%{__install} -m0755 -m0755 check_* %{buildroot}%{_libdir}/nagios/plugins
%{__install} -m0755 -m0755 imap_* %{buildroot}%{_libdir}/nagios/plugins
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(-, root, root, 0755)
%{_libdir}/nagios/plugins/check_*
%{_libdir}/nagios/plugins/imap_*
%doc CHANGES.txt LICENSE.txt README.txt
%doc docs/*
%changelog
* Sun Feb 5 2012 Nico Kadel-Garcia <nkadel@nkadel-sl6.localdomain> - 0.68-0.1
- Update to 0.7.1a
- Add nroff dependency for --help options
* Thu Nov 3 2011 Nico Kadel-Garcia <nkadel@nkadel-sl6.localdomain> - 0.68-0.1
- Initial build.

189
check_email_delivery/check_email_send_delivery.sh 100755
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#!/bin/bash
########################################################################
# Testing email delivery
#
# Required nagios email check plugins and zabbix_sender
#
# Author: Sergey Kalinin
# https://nuk-svk.ru
# svk@nuk-svk.ru
########################################################################
# Before, you will must settings variables into .mail_server_FQDN.env files
# and set environment variables:
# BIN_DIR - directory with nagios plugins
# ETC_DIR - directory containing .mail_server_FQDN.env
# Or put bin and var files into /usr/local/bin and /usr/local/etc respectively
#
# Used:
#
# $check_email_send_delivery.sh METHOD MAIL_SERVER
#
# Where METHOD must be like:
#
# "local" - local check
# "incoming" - from external sending to local receiving check
# "outgoing" - from local sending to external receiving check
#
# And MAIL_SERVER - must by FQDN mail server name
########################################################################
if [ -z $1 ]; then
echo "Enter check mode"
exit 1
fi
if [ -z $2 ]; then
echo "Enter mail server address"
exit 1
fi
MAIL_SERVER=$2
ZABBIX_HOST=${ZABBIX_HOST:-${MAIL_SERVER}}
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
RUNNING_ON_DOCKER=${RUNNING_ON_DOCKER:-TRUE}
# Include variables if runing non docker
if [ -z ${RUNNING_ON_DOCKER} ]; then
if [ -e "${ETC_DIR}/.${MAIL_SERVER}.env" ]; then
source "${ETC_DIR}/.${MAIL_SERVER}.env"
else
echo "File ${ETC_DIR}/.${MAIL_SERVER}.env not found. You must setting the variables"
exit 1
fi
fi
ZABBIX_SENDER=${ZABBIX_SENDER:-/usr/bin/zabbix_sender}
# Checking delays setting
WARNING_TIME=${WARNING_TIME:-60}
CRITICAL_TIME=${CRITICAL_TIME:-120}
TIMEOUT=${TIMEOUT:-120}
# Generate message body and subject
SUBJ="$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)"
BODY=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 64 | head -n 1)
#SUBJ="$(date). SMTP sending checking."
#BODY="SMTP sending checking. $(date)."
case "$1" in
local)
echo "> Local email service check: DOMAIN -> DOMAIN <"
#DELIVERY=$($BIN_DIR/check_email_delivery -H ${MAIL_SERVER} --mailto ${RECEIVER_EMAIL} \
# --mailfrom ${SENDER_EMAIL} --username ${RECEIVER_EMAIL} --password ${RECEIVER_PASSWORD} \
# --body 'Check email delivery')
DELIVERY=$($BIN_DIR/check_email_delivery \
--plugin "$BIN_DIR/check_smtp_send -H ${MAIL_SERVER} \
--mailto ${RECEIVER_EMAIL} --mailfrom ${SENDER_EMAIL} \
--header 'Subject: SMTP sending check' --header 'X-Your-Header: Yes'" \
--plugin "$BIN_DIR/check_imap_receive -H ${MAIL_SERVER} --ssl --port 993 \
--critical ${CRITICAL_TIME} --warning ${WARNING_TIME} --timeout ${TIMEOUT}\
--username ${RECEIVER_EMAIL} --password ${RECEIVER_PASSWORD} \
-s SUBJECT -s 'SMTP sending check' --capture-max 'Homeruns (\d+)' --delete")
SMTP_SEND=$($BIN_DIR/check_smtp_send -H ${MAIL_SERVER} \
--mailto ${RECEIVER_EMAIL} --mailfrom ${SENDER_EMAIL} \
--body 'Homeruns 5' --header 'Subject: SMTP sending check' --header 'X-Your-Header: Yes')
IMAP_RECEIVE=$($BIN_DIR/check_imap_receive -H ${MAIL_SERVER} --ssl --port 993 \
--critical ${CRITICAL_TIME} --warning ${WARNING_TIME} --timeout ${TIMEOUT} \
--username ${RECEIVER_EMAIL} --password ${RECEIVER_PASSWORD} \
-s SUBJECT -s "SMTP sending check" --capture-max "Homeruns (\d+)" --delete)
;;
incoming)
echo "> External email sending local receiving check: GOOGLE -> DOMAIN <"
# # В связи с ограничением провайдеров убрана проверка доставки
# DELIVERY=$($BIN_DIR/check_email_delivery \
# --plugin "$BIN_DIR/check_smtp_send -vvv -H ${EXT_SMTP_SERVER} --port 465 --ssl --username ${EXT_SENDER_EMAIL} \
# --password ${EXT_SENDER_PASSWORD} --mailto ${RECEIVER_EMAIL} --mailfrom ${EXT_SENDER_EMAIL} \
# --body "${BODY}" --header \"Subject: ${SUBJ}\" --header 'X-Your-Header: Yes'" \
# --plugin "$BIN_DIR/check_imap_receive -H ${MAIL_SERVER} --port 993 --ssl \
# --username ${RECEIVER_EMAIL} --password ${RECEIVER_PASSWORD} \
# -s SUBJECT -s "${SUBJ}" --capture-max \"${BODY}\" --nodelete-captured")
# --critical ${CRITICAL_TIME} --warning ${WARNING_TIME} --timeout ${TIMEOUT}\
SMTP_SEND=$($BIN_DIR/check_smtp_send -vvv -H ${EXT_SMTP_SERVER} --port 465 --ssl --username ${EXT_SENDER_EMAIL} \
--password ${EXT_SENDER_PASSWORD} --mailto ${RECEIVER_EMAIL} --mailfrom ${EXT_SENDER_EMAIL} \
--body "${BODY}" --header "Subject: ${SUBJ}" --header 'X-Your-Header: Yes')
IMAP_RECEIVE=$($BIN_DIR/check_imap_receive -H ${MAIL_SERVER} --ssl --port 993 \
--critical ${CRITICAL_TIME} --warning ${WARNING_TIME} --timeout ${TIMEOUT} \
--username ${RECEIVER_EMAIL} --password ${RECEIVER_PASSWORD} \
-s SUBJECT -s "${SUBJ}" --capture-max "${BODY}" --delete)
;;
outgoing)
echo "> Local email sending external receiving check: DOMAIN -> GOOGLE <"
DELIVERY=$($BIN_DIR/check_email_delivery \
--plugin "$BIN_DIR/check_smtp_send -H ${MAIL_SERVER}\
--mailto ${EXT_RECEIVER_EMAIL} --mailfrom ${SENDER_EMAIL} \
--body \"${BODY}\" --header \"Subject: ${SUBJ}\" --header 'X-Your-Header: Yes'" \
--plugin "$BIN_DIR/check_imap_receive -H ${EXT_IMAP_SERVER} --ssl --username ${EXT_RECEIVER_EMAIL} \
--password ${EXT_RECEIVER_PASSWORD} -s SUBJECT -s \"${SUBJ}\" --capture-max \"${BODY}\" \
--delete")
SMTP_SEND=$($BIN_DIR/check_smtp_send -H ${MAIL_SERVER}\
--mailto ${EXT_RECEIVER_EMAIL} --mailfrom ${SENDER_EMAIL} \
--body "${BODY}" --header "Subject: ${SUBJ}" --header 'X-Your-Header: Yes')
IMAP_RECEIVE=$($BIN_DIR/check_imap_receive -H ${EXT_IMAP_SERVER} --ssl --port 993 \
--critical ${CRITICAL_TIME} --warning ${WARNING_TIME} --timeout ${TIMEOUT} \
--username ${EXT_RECEIVER_EMAIL} --password ${EXT_RECEIVER_PASSWORD} \
-s SUBJECT -s "${SUBJ}" --capture-max "${BODY}" --delete)
;;
esac
#--ssl-ca-file ya.pem
DELIVERY_STATUS=$(echo "${DELIVERY}" | awk '{print $3}')
DELIVERY_TIME=$(echo "${DELIVERY}" | awk 'match($0,/delay=[0-9]+s/) {print substr($0,RSTART+6,RLENGTH-6-1)}')
DELIVERY_ELAPSED_TIME=$(echo "${DELIVERY}" | awk 'match($0,/elapsed=[0-9]+s/) {print substr($0,RSTART+8,RLENGTH-8-1)}')
echo "${DELIVERY}"
echo "${DELIVERY_STATUS}"
echo "${DELIVERY_TIME}"
echo "${DELIVERY_ELAPSED_TIME}"
SMTP_SEND_STATUS=$(echo ${SMTP_SEND} | awk '{print $3}')
SMTP_SEND_ELAPSED_TIME=$(echo ${SMTP_SEND} | awk 'match($0,/elapsed=[0-9]+s/) { print substr($0,RSTART+8,RLENGTH-8-1)}')
echo "${SMTP_SEND}"
echo "${SMTP_SEND_STATUS}"
echo "${SMTP_SEND_ELAPSED_TIME}"
IMAP_RECEIVE_STATUS=$(echo ${IMAP_RECEIVE} | awk '{print $3}')
IMAP_RECEIVE_ELAPSED_TIME=$(echo ${IMAP_RECEIVE} | awk 'match($0,/elapsed=[0-9]+s/) { print substr($0,RSTART+8,RLENGTH-8-1)}')
echo "${IMAP_RECEIVE}"
echo "${IMAP_RECEIVE_STATUS}"
echo "${IMAP_RECEIVE_ELAPSED_TIME}"
if [ $DELIVERY_STATUS ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.delivery.${1}.status -o $DELIVERY_STATUS
fi
if [ $DELIVERY_TIME ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.delivery.${1}.delay -o $DELIVERY_TIME
fi
if [ $DELIVERY_ELAPSED_TIME ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.delivery.${1}.elapsed -o $DELIVERY_ELAPSED_TIME
fi
if [ $SMTP_SEND_STATUS ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.smtp_send.${1}.status -o $SMTP_SEND_STATUS
fi
if [ $SMTP_SEND_ELAPSED_TIME ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.smtp_send.${1}.elapsed -o $SMTP_SEND_ELAPSED_TIME
fi
if [ $IMAP_RECEIVE_STATUS ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.imap_receive.${1}.status -o $IMAP_RECEIVE_STATUS
fi
if [ $IMAP_RECEIVE_ELAPSED_TIME ]; then
${ZABBIX_SENDER} -c /etc/zabbix/zabbix_agentd.conf -s "${ZABBIX_HOST}" -k email.imap_receive.${1}.elapsed -o $IMAP_RECEIVE_ELAPSED_TIME
fi
exit 0

22
check_email_delivery/docker-compose.yml 100755
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version: '3'
services:
email_delivery_check_mail:
image: email_delivery_check
env_file: .mail1.example.com.env
environment:
- MAIL_SERVER=mail1.example.com
- RUNNING_ON_DOCKER=TRUE
restart: always
build:
context: ./
email_delivery_check_mail2:
image: email_delivery_check
env_file: .mail1.example.com.env
environment:
- MAIL_SERVER=mail2.example.com
- RUNNING_ON_DOCKER=TRUE
restart: always
build:
context: ./

7
check_email_delivery/email_delivery_check.cron 100755
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*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh local mail.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh incoming mail.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh outgoing mail.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh local mail2.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh incoming mail2.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh outgoing mail2.example.com

14
check_email_delivery/run.sh 100755
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#!/bin/bash
# Run service
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
LIB_DIR=${LIB_DIR:-/usr/local/lib}
echo "Creating host into zabbix"
${BIN_DIR}/zabbix_create_host.sh
${BIN_DIR}/check_email_send_delivery.sh local ${MAIL_SERVER}
${BIN_DIR}/check_email_send_delivery.sh incoming ${MAIL_SERVER}
${BIN_DIR}/check_email_send_delivery.sh outgoing ${MAIL_SERVER}
sleep 300

38
check_email_delivery/sample.env 100755
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# Local sender settings
SENDER_EMAIL=delivery_speed@example.com
SENDER_PASSWORD=some-password
# Local receiver settings
RECEIVER_EMAIL=delivery_speed@example.com
RECEIVER_PASSWORD=some-password
# External IMAP ans SMTP servers
EXT_SMTP_SERVER=smtp.gmail.com
EXT_IMAP_SERVER=imap.gmail.com
# External sender settings
EXT_SENDER_EMAIL=external@gmail.com
EXT_SENDER_PASSWORD=some-password
# External receiver settings
EXT_RECEIVER_EMAIL=external@gmail.com
EXT_RECEIVER_PASSWORD=some-password
# Zabbix setting
ZABBIX_HOST=Email_delivery_test_for_mail
ZABBIX_USER=zabbix-user
ZABBIX_PASSWORD=zabbix-password
ZABBIX_TEMPLATE_NAME=Template_Email_Delivery_Check
### Systems variable with default values
### uncoment if you whant changes default setting
# BIN_DIR=/usr/local/bin
# ETC_DIR=/usr/local/etc
# ZABBIX_SENDER=/usr/bin/zabbix_sender
# Checking delays setting
# WARNING_TIME=60
# CRITICAL_TIME=120
# TIMEOUT=120

216
check_email_delivery/zabbix_create_host.sh 100755
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#!/bin/bash
###################################################################
#
# Скрипт для работы с Zabbix Rest API
# Позволяет создавать группу узлов, шаблон, узел.
# Создан по мотивам
# https://www.reddit.com/r/zabbix/comments/bhdhgq/zabbix_api_example_using_just_bash_curl_and_jq/
#
# Автор: Сергей Калинин
# https://nuk-svk.ru
# svk@nuk-svk.ru
#####################################################################
#
# Использование:
# ./zabbix_create_host.sh
#
# Запуск без параметров создаст группу узлов, шаблон и узел если они
# отсутствуют. Данные берутся из переменных окружения
#####################################################################
#####################################################################
# Custom variables
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
LIB_DIR=${LIB_DIR:-/usr/local/lib}
zabbixServer=${ZABBIX_SERVER:-'http://zabbix.example.com'}
zabbixUsername=${ZABBIX_USER}
zabbixPassword=${ZABBIX_PASSWORD}
zabbixHostGroup=${ZABBIX_HOST_GROUP:-'Virtual Hosts'}
ZABBIX_HOST_NAME=${ZABBIX_HOST:-"Test Virtual Host"}
ZABBIX_TEMPLATE_NAME=${ZABBIX_TEMPLATE_NAME:-"Some_Template"}
#End of custom variables
#####################################################################
header='Content-Type:application/json'
zabbixApiUrl="$zabbixServer/api_jsonrpc.php"
function exit_with_error() {
echo '********************************'
echo "$errorMessage"
echo '--------------------------------'
echo 'INPUT'
echo '--------------------------------'
echo "$json"
echo '--------------------------------'
echo 'OUTPUT'
echo '--------------------------------'
echo "$result"
echo '********************************'
exit 1
}
#####################################################################
# Auth to zabbix
# https://www.zabbix.com/documentation/3.4/manual/api/reference/user/login
function auth() {
errorMessage='*ERROR* - Unable to get Zabbix authorization token'
json=$(cat ${LIB_DIR}/user.login.json)
json=${json/USER/$zabbixUsername}
json=${json/PASSWORD/$zabbixPassword}
#echo $json
result=$(curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl)
auth=$(echo $result | jq '.result')
echo "Auth: $auth"
if [ -z "$auth" ]; then
exit_with_error
fi
echo "Login successful - Auth ID: $auth"
}
#####################################################################
# Create hostgroup
function create_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to create hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.create.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .groupids | .[0]'`
if [ "$HOSTGROUP_ID" == "null" ]; then
exit_with_error
fi
echo "Hostgroup '$zabbixHostGroup' was created with ID: $HOSTGROUP_ID"
}
#####################################################################
# Get hostgroup
function get_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.get.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .[0] | .groupid'`
if [ "$HOSTGROUP_ID" == "null" ]; then
create_host_group
fi
echo "Hostgroup ID for '$zabbixHostGroup': $HOSTGROUP_ID"
}
#####################################################################
# Create template
function create_template(){
if [ -z "$auth" ]; then
auth
fi
echo "Creating zabbix template '$ZABBIX_TEMPLATE_NAME'"
errorMessage="*ERROR* - Unable to create Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.create.json`
TEMPLATE_XML=$(cat ${LIB_DIR}/$ZABBIX_TEMPLATE_NAME.xml)
TEMPLATE_XML="$(echo $TEMPLATE_XML | sed 's/"/\\"/g')"
json=${json/XMLSTRING/$TEMPLATE_XML}
json=${json/AUTHID/$auth}
#echo $json
#echo "curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl"
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
#exit
#RESULT=`echo $result | jq -r '.result'`
if [ "$RESULT" == "null" ]; then
exit_with_error
else
get_template
#echo "Template '$ZABBIX_TEMPLATE_NAME' was created with ID: $TEMPLATE_ID"
fi
}
#####################################################################
# Get template
function get_template(){
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.get.json`
json=${json/TEMPLATE_NAME/$ZABBIX_TEMPLATE_NAME}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
TEMPLATE_ID=`echo $result | jq -r '.result | .[0] | .templateid'`
if [ "$TEMPLATE_ID" == "null" ]; then
create_template
fi
echo "Template ID for '$ZABBIX_TEMPLATE_NAME': $TEMPLATE_ID"
}
#####################################################################
# Get host
function get_host() {
if [ -z "$auth" ]; then
auth
fi
# Проверяем наличие узла если он есть возвращаем ID если нет - создаем
errorMessage="*ERROR* - Unable to get host ID for host '$zabbixHost'"
json=`cat ${LIB_DIR}/host.get.json`
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
hostId=`echo $result | jq -r '.result | .[0] | .hostid'`
# if [ "$hostId" == "null" ]; then exit_with_error; fi
# echo "Host ID for '$zabbixHost': $hostId"
if [ "$hostId" == "null" ]; then
create_host
#exit_with_error
else
echo "Host ID for '$zabbixHost': $hostId"
fi
}
#####################################################################
# Create host
function create_host() {
if [ -z "$auth" ]; then
auth
fi
# Проверяем наличие шаблона если он есть возвращаем ID если нет - создаем
if [ -z "$TEMPLATE_ID" ]; then
get_template
fi
# Проверяем наличие группы узлов если она есть возвращаем ID если нет - создаем
if [ -z "$HOSTGROUP_ID" ]; then
get_host_group
fi
echo "Create host \"$ZABBIX_HOST_NAME\""
errorMessage="*ERROR* - Host '$zabbixHost' does not created"
json=$(cat ${LIB_DIR}/host.create.json)
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/HOSTGROUPID/$HOSTGROUP_ID}
json=${json/TEMPLATE_ID/$TEMPLATE_ID}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
HOST_ID=`echo $result | jq -r '.result | .hostids | .[0]'`
if [ -z "$HOST_ID" ]; then
exit_with_error
else
echo "Host \"${ZABBIX_HOST_NAME}\" was created with id $HOST_ID"
fi
}
get_host

29
check_email_delivery/zabbix_jrpc_files/host.create.json 100755
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{
"jsonrpc": "2.0",
"method": "host.create",
"params": {
"host": "HOSTNAME",
"interfaces": [
{
"type": 1,
"main": 1,
"useip": 1,
"ip": "127.0.0.1",
"dns": "",
"port": "10050"
}
],
"groups": [
{
"groupid": "HOSTGROUPID"
}
],
"templates": [
{
"templateid": "TEMPLATE_ID"
}
]
},
"auth": AUTHID,
"id": 1
}

9
check_email_delivery/zabbix_jrpc_files/host.exists.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "host.exists",
"params": {
"host": "HOSTNAME"
},
"auth": AUTHID,
"id": 1
}

13
check_email_delivery/zabbix_jrpc_files/host.get.json 100755
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@ -0,0 +1,13 @@
{
"jsonrpc": "2.0",
"method": "host.get",
"params": {
"filter": {
"host": [
"HOSTNAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
check_email_delivery/zabbix_jrpc_files/hostgroup.create.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.create",
"params": {
"name": "HOSTGROUP"
},
"auth": AUTHID,
"id": 1
}

15
check_email_delivery/zabbix_jrpc_files/hostgroup.get.json 100755
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@ -0,0 +1,15 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.get",
"params": {
"output": "groupid",
"filter": {
"name": [
"HOSTGROUP"
]
}
},
"auth": AUTHID,
"id": 1
}

30
check_email_delivery/zabbix_jrpc_files/template.create.json 100755
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@ -0,0 +1,30 @@
{
"jsonrpc": "2.0",
"method": "configuration.import",
"params": {
"format": "xml",
"rules": {
"templates": {
"createMissing": true
},
"items": {
"createMissing": true
},
"discoveryRules": {
"createMissing": true
},
"triggers": {
"createMissing": true
},
"graphs": {
"createMissing": true
},
"applications": {
"createMissing": true
}
},
"source": "XMLSTRING"
},
"auth": AUTHID,
"id": 1
}

14
check_email_delivery/zabbix_jrpc_files/template.get.json 100755
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@ -0,0 +1,14 @@
{
"jsonrpc": "2.0",
"method": "template.get",
"params": {
"output": "extend",
"filter": {
"host": [
"TEMPLATE_NAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
check_email_delivery/zabbix_jrpc_files/user.login.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "user.login",
"params": {
"user": "USER",
"password": "PASSWORD"
},
"id": 1
}

1407
check_email_delivery/zabbix_templates/Template_Email_Delivery_Check.xml 100755
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File diff suppressed because it is too large Load Diff

13
lxc_fs_monitoring/get_fs_status.sh 100755
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@ -0,0 +1,13 @@
#!/bin/bash
case "$2" in
available)
echo $(/bin/df | /bin/grep "$1"| /usr/bin/awk '{print $4}')
;;
usage)
echo $(/bin/df | /bin/grep "$1"| /usr/bin/awk '{print $3}')
;;
percent)
echo $(/bin/df | /bin/grep "$1"| /usr/bin/awk '{print $5}' | tr -d "%")
;;
esac

3
lxc_fs_monitoring/zabbix_agent_user_parameter 100644
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UserParameter=lxc.filesystem.usage[*],/usr/local/bin/get_fs_status.sh "$1" usage
UserParameter=lxc.filesystem.available[*],/usr/local/bin/get_fs_status.sh "$1" available
UserParameter=lxc.filesystem.usage.percent[*],/usr/local/bin/get_fs_status.sh "$1" percent

35
zabbix_api_use/README.md 100755
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# Отслеживание изменений всех типов DNS-записей для домена
## Описание
Набор скриптов для создания узла в заббикс через REST API. Создан по мотивам https://www.reddit.com/r/zabbix/comments/bhdhgq/zabbix_api_example_using_just_bash_curl_and_jq/
- добавляет узел
- добавляет шаблон
- добавляет группу узлов
- приписывает шаблон и группу к узлу
В состав сервиса входит:
- zabbix_create_host.sh - позволяет создать в zabbix группу узлов, шаблон, узел. В случае если объект уже есть, то будет получен его идентификатор. Используется Zabbix JSON RPC.
- zabbix_jrpc_files - каталог содержит JSON-файлы с описанием процедур по взаимодействия с zabbix
- zabbix_templates - шаблоны zabbix
## Использование
Предварительно требуется изменить значения переменных окружения (если необходимо). Список переменных со значениями по умолчанию:
- BIN_DIR=/usr/local/bin
- ETC_DIR=/usr/local/etc
- LIB_DIR=/usr/local/lib
- ZABBIX_SERVER='http://zabbix.example.com'
- ZABBIX_USER=
- ZABBIX_PASSWORD=
- ZABBIX_HOST_GROUP:-'Virtual Hosts'
- ZABBIX_HOST "Some my host"
- ZABBIX_TEMPLATE_NAME="Template_DNS_Check"
Запуск команды:
```./zabbix_create_host.sh```

213
zabbix_api_use/zabbix_create_host.sh 100755
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#!/bin/bash
###################################################################
#
# Скрипт для работы с Zabbix Rest API
# Позволяет создавать группу узлов, шаблон, узел.
# Создан по мотивам
# https://www.reddit.com/r/zabbix/comments/bhdhgq/zabbix_api_example_using_just_bash_curl_and_jq/
#
# Автор: Сергей Калинин
# https://nuk-svk.ru
# svk@nuk-svk.ru
#####################################################################
#
# Использование:
# ./zabbix_create_host.sh
#
# Запуск без параметров создаст группу узлов, шаблон и узел если они
# отсутствуют. Данные берутся из переменных окружения
#####################################################################
#####################################################################
# Custom variables
BIN_DIR=${BIN_DIR:-/usr/local/bin}
ETC_DIR=${ETC_DIR:-/usr/local/etc}
LIB_DIR=${LIB_DIR:-/usr/local/lib}
zabbixServer=${ZABBIX_SERVER:-'http://zabbix.example.com'}
zabbixUsername=${ZABBIX_USER}
zabbixPassword=${ZABBIX_PASSWORD}
zabbixHostGroup=${ZABBIX_HOST_GROUP:-'Virtual Hosts'}
ZABBIX_HOST_NAME=${ZABBIX_HOST:-"DNS records check"}
ZABBIX_TEMPLATE_NAME=${ZABBIX_TEMPLATE_NAME:-"Template_DNS_Check"}
#End of custom variables
#####################################################################
header='Content-Type:application/json'
zabbixApiUrl="$zabbixServer/api_jsonrpc.php"
function exit_with_error() {
echo '********************************'
echo "$errorMessage"
echo '--------------------------------'
echo 'INPUT'
echo '--------------------------------'
echo "$json"
echo '--------------------------------'
echo 'OUTPUT'
echo '--------------------------------'
echo "$result"
echo '********************************'
exit 1
}
#####################################################################
# Auth to zabbix
# https://www.zabbix.com/documentation/3.4/manual/api/reference/user/login
function auth() {
errorMessage='*ERROR* - Unable to get Zabbix authorization token'
json=$(cat ${LIB_DIR}/user.login.json)
json=${json/USER/$zabbixUsername}
json=${json/PASSWORD/$zabbixPassword}
#echo $json
result=$(curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl)
auth=$(echo $result | jq '.result')
echo "Auth: $auth"
if [ -z "$auth" ]; then
exit_with_error
fi
echo "Login successful - Auth ID: $auth"
}
#####################################################################
# Create hostgroup
function create_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to create hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.create.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .groupids | .[0]'`
if [ "$HOSTGROUP_ID" == "null" ]; then
exit_with_error
fi
echo "Hostgroup '$zabbixHostGroup' was created with ID: $HOSTGROUP_ID"
}
#####################################################################
# Get hostgroup
function get_host_group() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get hostgroup ID for host group named '$zabbixHostGroup'"
json=`cat ${LIB_DIR}/hostgroup.get.json`
json=${json/HOSTGROUP/$zabbixHostGroup}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
HOSTGROUP_ID=`echo $result | jq -r '.result | .[0] | .groupid'`
if [ "$HOSTGROUP_ID" == "null" ]; then
create_host_group
fi
echo "Hostgroup ID for '$zabbixHostGroup': $HOSTGROUP_ID"
}
#####################################################################
# Create template
function create_template(){
if [ -z "$auth" ]; then
auth
fi
echo "Creating zabbix template '$ZABBIX_TEMPLATE_NAME'"
errorMessage="*ERROR* - Unable to create Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.create.json`
TEMPLATE_XML=$(cat ${LIB_DIR}/$ZABBIX_TEMPLATE_NAME.xml)
TEMPLATE_XML="$(echo $TEMPLATE_XML | sed 's/"/\\"/g')"
json=${json/XMLSTRING/$TEMPLATE_XML}
json=${json/AUTHID/$auth}
#echo $json
#echo "curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl"
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
#exit
#RESULT=`echo $result | jq -r '.result'`
if [ "$RESULT" == "null" ]; then
exit_with_error
else
get_template
#echo "Template '$ZABBIX_TEMPLATE_NAME' was created with ID: $TEMPLATE_ID"
fi
}
#####################################################################
# Get template
function get_template(){
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get Template ID for '$ZABBIX_TEMPLATE_NAME'"
json=`cat ${LIB_DIR}/template.get.json`
json=${json/TEMPLATE_NAME/$ZABBIX_TEMPLATE_NAME}
json=${json/AUTHID/$auth}
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
TEMPLATE_ID=`echo $result | jq -r '.result | .[0] | .templateid'`
if [ "$TEMPLATE_ID" == "null" ]; then
create_template
fi
echo "Template ID for '$ZABBIX_TEMPLATE_NAME': $TEMPLATE_ID"
}
#####################################################################
# Get host
function get_host() {
if [ -z "$auth" ]; then
auth
fi
errorMessage="*ERROR* - Unable to get host ID for host '$zabbixHost'"
json=`cat ${LIB_DIR}/host.get.json`
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
hostId=`echo $result | jq -r '.result | .[0] | .hostid'`
# if [ "$hostId" == "null" ]; then exit_with_error; fi
# echo "Host ID for '$zabbixHost': $hostId"
if [ "$hostId" == "null" ]; then
create_host
#exit_with_error
else
echo "Host ID for '$zabbixHost': $hostId"
fi
}
#####################################################################
# Create host
function create_host() {
if [ -z "$auth" ]; then
auth
fi
if [ -z "$TEMPLATE_ID" ]; then
get_template
fi
if [ -z "$HOSTGROUP_ID" ]; then
get_host_group
fi
echo "Create host \"$ZABBIX_HOST_NAME\""
errorMessage="*ERROR* - Host '$zabbixHost' does not created"
json=$(cat ${LIB_DIR}/host.create.json)
json=${json/HOSTNAME/$ZABBIX_HOST_NAME}
json=${json/HOSTGROUPID/$HOSTGROUP_ID}
json=${json/TEMPLATE_ID/$TEMPLATE_ID}
json=${json/AUTHID/$auth}
#echo $json
result=`curl --silent --show-error --insecure --header $header --data "$json" $zabbixApiUrl`
#echo $result
HOST_ID=`echo $result | jq -r '.result | .hostids | .[0]'`
if [ -z "$HOST_ID" ]; then
exit_with_error
else
echo "Host \"${ZABBIX_HOST_NAME}\" was created with id $HOST_ID"
fi
}
get_host

29
zabbix_api_use/zabbix_jrpc_files/host.create.json 100755
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{
"jsonrpc": "2.0",
"method": "host.create",
"params": {
"host": "HOSTNAME",
"interfaces": [
{
"type": 1,
"main": 1,
"useip": 1,
"ip": "127.0.0.1",
"dns": "",
"port": "10050"
}
],
"groups": [
{
"groupid": "HOSTGROUPID"
}
],
"templates": [
{
"templateid": "TEMPLATE_ID"
}
]
},
"auth": AUTHID,
"id": 1
}

9
zabbix_api_use/zabbix_jrpc_files/host.exists.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "host.exists",
"params": {
"host": "HOSTNAME"
},
"auth": AUTHID,
"id": 1
}

13
zabbix_api_use/zabbix_jrpc_files/host.get.json 100755
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@ -0,0 +1,13 @@
{
"jsonrpc": "2.0",
"method": "host.get",
"params": {
"filter": {
"host": [
"HOSTNAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
zabbix_api_use/zabbix_jrpc_files/hostgroup.create.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.create",
"params": {
"name": "HOSTGROUP"
},
"auth": AUTHID,
"id": 1
}

15
zabbix_api_use/zabbix_jrpc_files/hostgroup.get.json 100755
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@ -0,0 +1,15 @@
{
"jsonrpc": "2.0",
"method": "hostgroup.get",
"params": {
"output": "groupid",
"filter": {
"name": [
"HOSTGROUP"
]
}
},
"auth": AUTHID,
"id": 1
}

30
zabbix_api_use/zabbix_jrpc_files/template.create.json 100755
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{
"jsonrpc": "2.0",
"method": "configuration.import",
"params": {
"format": "xml",
"rules": {
"templates": {
"createMissing": true
},
"items": {
"createMissing": true
},
"discoveryRules": {
"createMissing": true
},
"triggers": {
"createMissing": true
},
"graphs": {
"createMissing": true
},
"applications": {
"createMissing": true
}
},
"source": "XMLSTRING"
},
"auth": AUTHID,
"id": 1
}

14
zabbix_api_use/zabbix_jrpc_files/template.get.json 100755
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@ -0,0 +1,14 @@
{
"jsonrpc": "2.0",
"method": "template.get",
"params": {
"output": "extend",
"filter": {
"host": [
"TEMPLATE_NAME"
]
}
},
"auth": AUTHID,
"id": 1
}

9
zabbix_api_use/zabbix_jrpc_files/user.login.json 100755
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@ -0,0 +1,9 @@
{
"jsonrpc": "2.0",
"method": "user.login",
"params": {
"user": "USER",
"password": "PASSWORD"
},
"id": 1
}

0
zabbix_api_use/zabbix_templates/Some-Template.xml 100644
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