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88 lines
2.5 KiB
88 lines
2.5 KiB
#!/bin/sh
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PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
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CONFIG=$1
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# BEGIN CONFIG CHECK
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### Provides KEY, CHATID, CHKLIST
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if [ -n "$CONFIG" ]; then
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if [ -f "$CONFIG" ]; then
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. $CONFIG #Source config file
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else
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printf '%s\n' "$CONFIG: File does not exist." >&2
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exit 10
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fi
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else
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if [ -f ".httpcheck_telegram" ]; then
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. .httpcheck_telegram #Source config file
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else
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printf '%s\n' "No configuration file found." >&2
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exit 10
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fi
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fi
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# Check if config was loaded by examining all configuration variables, exit if not
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if [ -z "$KEY" ]; then
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printf '%s\n' "Configuration not set correctly: KEY not set" >&2
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ERROR11=true
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fi
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if [ -z "$CHATID" ]; then
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printf '%s\n' "Configuration not set correctly: CHATID not set" >&2
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ERROR11=true
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fi
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if [ -z "$CHKLIST" ]; then
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printf '%s\n' "Configuration not set correctly: CHKLIST not set" >&2
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ERROR11=true
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fi
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[ "$ERROR11" = "true" ] && exit 11
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# END CONFIG CHECK
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TIME="10"
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URL="https://api.telegram.org/bot$KEY/sendMessage"
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#Telegram message function
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send_message() {
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curl -s --max-time $TIME -d "chat_id=${CHATID}&disable_web_page_preview=1&text=$1" $URL >/dev/null
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}
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get_http_code() {
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if host $(printf '%s\n' $1 | awk '{gsub("https?://|/.*","")}1') &>/dev/null; then
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curl -sILk --max-time $TIME $1 | grep HTTP | tail -n 1 | grep -Eo '[0-9]{3}' || printf '%s\n' 999
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else
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printf '%s\n' 000
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fi
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}
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# Prepare message header
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MSG='HTTP/S Problems Found:'
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FAILURE=false
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# Check HTTP codes
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for site in $(< $CHKLIST); do
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respcode=$(get_http_code $site)
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case $respcode in
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000)
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printf '%s\n' "[$(date '+%Y%m%d %H:%M:%S')]: PROBLEM -- $site: DNS record not found" >&2
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MSG="${MSG}%0A%0A %2B ${site}%0A DNS record not found"
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FAILURE=true
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;;
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200)
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printf '%s\n' "[$(date '+%Y%m%d %H:%M:%S')]: OK -- $site returns $respcode"
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;;
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999)
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printf '%s\n' "[$(date '+%Y%m%d %H:%M:%S')]: PROBLEM -- $site caused general cURL failure" >&2
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;;
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*)
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printf '%s\n' "[$(date '+%Y%m%d %H:%M:%S')]: PROBLEM -- $site returns $respcode" >&2
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MSG="${MSG}%0A%0A %2B ${site}%0A responding ${respcode}"
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FAILURE=true
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;;
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esac
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done || exit 2
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# Send compiled message if any problems were found
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send_message "$MSG" && printf '%s\n' "Problems found. Message sent via Telegram bot" >&2 || printf '%s\n' "Problems found. Message sending has failed"
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exit 0
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