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60 lines
1.4 KiB
Bash
60 lines
1.4 KiB
Bash
#!/usr/bin/env bash
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#
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# Monitor check on a single valid HTTP url.
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#
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# `captaincore monitor-check <url,name>`
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#
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# [--debug]
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# Extra info for troubleshooting
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#
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# Vars
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user_agent="captaincore/1.0 (CaptainCore Health Check by CaptainCore.io)"
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url=${1%%,*}
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name=${1##*,}
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flag=$2
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run_command() {
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# Run the health check. Return http_code and body.
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response=$(curl --location --max-redirs 7 --user-agent "$user_agent" --write-out "|%{num_redirects}|%{http_code}" --max-time 30 --compressed --silent $url)
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response_last_line=$( printf "%s\n" "$response" | tail -n1 )
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# Pull out number of redirects
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num_redirects=$( echo -e "$response_last_line" | perl -ne '/.*\|(\d+)\|(\d+)$/&& print $1' )
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# Pull out http code
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http_code=$( echo -e "$response_last_line" | perl -ne '/.*\|(\d+)\|(\d+)$/&& print $2' )
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# Pull out </html> from bottom if found. Valid code should contain </html> near the bottom.
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html_end_tag=$( printf "%s\n" "$response"| tail -n12 | perl -wnE'say for /<\/html>/g' )
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# check if </html> found
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if [[ $html_end_tag == "</html>" ]]; then
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html_end_tag_check="true"
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else
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html_end_tag_check="false"
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fi
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# Build json for output
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read -r -d '' json_output << EOM
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{
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"http_code":"$http_code",
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"num_redirects":"$num_redirects",
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"url":"$url",
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"name":"$name",
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"html_valid":"$html_end_tag_check"
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}
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EOM
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echo $json_output
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if [[ "$flag" == "--debug" ]]; then
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echo "Raw response"
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echo "$response"
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fi
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}
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run_command $1
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