dockcheck/notify_templates/notify_telegram.sh
vorezal 57650f1673
Notify_v2.sh bug fixes (#188)
* Notify_v2.sh bug fixes

* Clarify notify_v2.sh usage in README.md

* Fix JSON newline handling in Discord and Telegram channels

* Additional error messages when notification templates fail to be sourced

* Additional variable for self-hosted ntfy.sh domain

* Notify_v2.sh additional fixes

* Clarify usage in README.md and notify template comments

* Support sourcing template files from project root

* Add days old message to notification title

* Handle JSON with jq in Discord and Telegram templates

* Tweak notify_v2.sh usage docs and comments

* Remove extra newline from notification body

* replaced jq with jqbin, reodered setting of jqbin, changed source for hostname var

* moved the setting of jqbin a bit further up after further testing

---------

Co-authored-by: Matthew Oleksowicz <matt@everyoneneeds.it>
Co-authored-by: mag37 <robin.ivehult@gmail.com>
2025-05-29 22:43:34 +02:00

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### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
NOTIFY_TELEGRAM_VERSION="v0.3"
#
# Required receiving services must already be set up.
# Leave (or place) this file in the "notify_templates" subdirectory within the same directory as the main dockcheck.sh script.
# If you instead wish make your own modifications, make a copy in the same directory as the main dockcheck.sh script.
# Do not modify this file directly within the "notify_templates" subdirectory. Set TELEGRAM_CHAT_ID and TELEGRAM_TOKEN in your dockcheck.config file.
if [[ -z "${TELEGRAM_CHAT_ID:-}" ]] || [[ -z "${TELEGRAM_TOKEN:-}" ]]; then
printf "Telegram notification channel enabled, but required configuration variables are missing. Telegram notifications will not be sent.\n"
remove_channel telegram
fi
trigger_telegram_notification() {
if [[ "$PrintMarkdownURL" == true ]]; then
ParseMode="Markdown"
else
ParseMode="HTML"
fi
TelegramToken="${TELEGRAM_TOKEN}" # e.g. TELEGRAM_TOKEN=token-value
TelegramChatId="${TELEGRAM_CHAT_ID}" # e.g. TELEGRAM_CHAT_ID=mychatid
TelegramUrl="https://api.telegram.org/bot$TelegramToken"
TelegramTopicID=${TELEGRAM_TOPIC_ID:="0"}
JsonData=$( "$jqbin" -n \
--arg chatid "$TelegramChatId" \
--arg text "$MessageBody" \
--arg thread "$TelegramTopicID" \
--arg parse_mode "$ParseMode" \
'{"chat_id": $chatid, "text": $text, "message_thread_id": $thread, "disable_notification": false, "parse_mode": $parse_mode, "disable_web_page_preview": true}' )
curl -sS -o /dev/null --fail -X POST "$TelegramUrl/sendMessage" -H 'Content-Type: application/json' -d "$JsonData"
}