refactor: use function to write to log
- much more consistent - one place to change all entries
This commit is contained in:
Asif Bacchus
parent
31eb503245
commit
db8a615d36
169
cfddns.sh
169
cfddns.sh
@ -69,19 +69,19 @@ exitError() {
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errMsg="${failedHostCount} host update(s) failed. Any 'CF-ERR:' lines noted in this log may help determine what went wrong."
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;;
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*)
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printf "%s[%s] ERR: Unknown error. (code: 99)%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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printf "%s[%s] ERROR: An unspecified error occurred.%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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printf "%s[%s] -- Cloudflare DDNS update-script: execution completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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writeLog err "Unspecified error."
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writeLog error "An unspecified error occurred. (code: 99)"
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printf "%s[%s] -- Cloudflare DDNS update-script: completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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exit 99
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;;
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esac
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printf "%s[%s] ERROR: %s (code: %s)%s\n" "$err" "$(stamp)" "$errMsg" "$1" "$norm" >>"$logFile"
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printf "%s[%s] -- Cloudflare DDNS update-script: execution completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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writeLog error "$errMsg" "$1"
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printf "%s[%s] -- Cloudflare DDNS update-script: completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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exit "$1"
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}
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exitOK() {
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printf "%s[%s] -- Cloudflare DDNS update-script: execution complete --%s\n" "$ok" "$(stamp)" "$norm" >>"$logFile"
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printf "%s[%s] -- Cloudflare DDNS update-script: completed successfully --%s\n" "$ok" "$(stamp)" "$norm" >>"$logFile"
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exit 0
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}
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@ -101,7 +101,7 @@ listCFErrors() {
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messages="${messages#*_}"
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# output to log
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printf "[%s] CF-ERR: Code %s. %s\n" "$(stamp)" "$code" "$message"
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writeLog cf "$message" "$code"
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done
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}
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@ -207,6 +207,47 @@ textBlockSwitches() {
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printf "%s%s%s\n" "$cyan" "$1" "$norm"
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}
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writeLog() {
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case "$1" in
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cf)
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printf "[%s] CF-ERR: %s (code: %s)\n" "$(stamp)" "$2" "$3" >>"$logFile"
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;;
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err)
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printf "%s[%s] ERR: %s%s\n" "$err" "$(stamp)" "$2" "$norm" >>"$logFile"
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;;
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error)
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printf "%s[%s] ERROR: %s (code: %s)%s\n" "$err" "$(stamp)" "$2" "$3" "$norm" >>"$logFile"
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;;
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process)
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printf "%s[%s] %s... %s" "$cyan" "$(stamp)" "$1" "$norm" >>"$logFile"
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;;
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process-done)
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printf "%s%s%s\n" "$cyan" "$1" "$norm" >>"$logFile"
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;;
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process-error)
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printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
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;;
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process-warning)
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printf "%s%s%s\n" "$warn" "$1" "$norm" >>"$logFile"
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;;
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stamped)
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printf "[%s] %s\n" "$(stamp)" "$2" >>"$logFile"
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;;
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success)
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printf "%s[%s] SUCCESS: %s%s\n" "$ok" "$(stamp)" "$2" "$norm" >>"$logFile"
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;;
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warn)
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printf "%s[%s] WARN: %s%s\n" "$warn" "$(stamp)" "$2" "$norm" >>"$logFile"
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;;
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warning)
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printf "%s[%s] WARNING: %s%s\n" "$warn" "$(stamp)" "$2" "$norm" >>"$logFile"
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;;
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*)
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printf "%s\n" "$2" >>"$logFile"
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;;
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esac
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}
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### default variable values
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scriptPath="$(CDPATH='' \cd -- "$(dirname -- "$0")" && pwd -P)"
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scriptName="$(basename "$0")"
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@ -336,52 +377,52 @@ fi
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### initial log entries
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{
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printf "%s[%s] -- Cloudflare DDNS update-script: execution starting --%s\n" "$ok" "$(stamp)" "$norm"
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printf "%s[%s] -- Cloudflare DDNS update-script: starting --%s\n" "$ok" "$(stamp)" "$norm"
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printf "Parameters:\n"
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printf "script path: %s\n" "$scriptPath/$scriptName"
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printf "credentials file: %s\n" "$accountFile"
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if [ "$ip4" -eq 1 ]; then
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printf "mode: IP4\n"
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elif [ "$ip6" -eq 1 ]; then
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printf "mode: IP6\n"
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fi
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# detect and report IP address
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if [ -z "$ipAddress" ]; then
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# detect public ip address
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if [ "$ip4" -eq 1 ]; then
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if ! ipAddress="$(curl -s $ip4DetectionSvc)"; then
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printf "ddns ip address:%s ERROR%s\n" "$err" "$norm"
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exitError 10
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fi
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fi
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if [ "$ip6" -eq 1 ]; then
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if ! ipAddress="$(curl -s $ip6DetectionSvc)"; then
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printf "ddns ip address:%s ERROR%s\n" "$err" "$norm"
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exitError 10
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fi
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fi
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printf "ddns ip address (detected): %s\n" "$ipAddress"
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else
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printf "ddns ip address (supplied): %s\n" "$ipAddress"
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fi
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# iterate DNS records to update
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dnsRecordsToUpdate="$(printf '%s' "${1}" | sed "s/${dnsSeparator}*$//")$dnsSeparator"
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while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator" ]; do
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record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
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dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
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if [ -z "$record" ]; then continue; fi
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printf "updating record: %s\n" "$record"
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done
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printf "(end of parameter list)\n"
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} >>"$logFile"
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if [ "$ip4" -eq 1 ]; then
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printf "mode: IP4\n" >>"$logFile"
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elif [ "$ip6" -eq 1 ]; then
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printf "mode: IP6\n" >>"$logFile"
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fi
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# detect and report IP address
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if [ -z "$ipAddress" ]; then
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# detect public ip address
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if [ "$ip4" -eq 1 ]; then
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if ! ipAddress="$(curl -s $ip4DetectionSvc)"; then
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printf "ddns ip address:%s error%s\n" "$err" "$norm" >>"$logFile"
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exitError 10
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fi
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fi
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if [ "$ip6" -eq 1 ]; then
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if ! ipAddress="$(curl -s $ip6DetectionSvc)"; then
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printf "ddns ip address:%s error%s\n" "$err" "$norm" >>"$logFile"
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exitError 10
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fi
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fi
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printf "ddns ip address (detected): %s\n" "$ipAddress" >>"$logFile"
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else
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printf "ddns ip address (supplied): %s\n" "$ipAddress" >>"$logFile"
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fi
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# iterate DNS records to update
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dnsRecordsToUpdate="$(printf '%s' "${1}" | sed "s/${dnsSeparator}*$//")$dnsSeparator"
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while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator" ]; do
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record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
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dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
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if [ -z "$record" ]; then continue; fi
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printf "updating record: %s\n" "$record" >>"$logFile"
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done
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printf "(end of parameter list)\n" >>"$logFile"
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### read Cloudflare credentials
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printf "[%s] Reading Cloudflare credentials... " "$(stamp)" >>"$logFile"
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writeLog process "Reading Cloudflare credentials"
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case "$accountFile" in
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/*)
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# absolute path, use as-is
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@ -395,14 +436,14 @@ case "$accountFile" in
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;;
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esac
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if [ -z "$cfKey" ]; then
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printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
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writeLog process-error
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exitError 21
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fi
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if [ -z "$cfZoneId" ]; then
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printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
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writeLog process-error
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exitError 22
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fi
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printf "DONE%s\n" "$norm" >>"$logFile"
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writeLog process-done "DONE"
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### connect to Cloudflare and do what needs to be done!
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dnsRecordsToUpdate="$dnsRecords$dnsSeparator"
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@ -418,13 +459,13 @@ while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator"
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dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
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if [ -z "$record" ]; then continue; fi
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printf "[%s] Processing %s... " "$(stamp)" "$record" >>"$logFile"
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writeLog process "Processing ${record}"
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# exit if curl/network error
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if ! cfLookup="$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/${cfZoneId}/dns_records?name=${record}&type=${recordType}" \
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-H "Authorization: Bearer ${cfKey}" \
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-H "Content-Type: application/json")"; then
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printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
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writeLog process-error
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exitError 3
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fi
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@ -433,7 +474,7 @@ while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator"
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# no reason to continue processing other hosts and pile-up errors which might look like a DoS attempt
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cfSuccess="$(printf "%s" "$cfLookup" | jq -r '.success')"
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if [ "$cfSuccess" = "false" ]; then
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printf "%sERROR%s\n" "$err" "$norm"
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writeLog process-error
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listCFErrors "$cfLookup"
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exitError 25
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fi
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@ -443,24 +484,24 @@ while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator"
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# skip to next host if cannot find existing host record (this script *updates* only, does not create!)
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if [ "$resultCount" = "0" ]; then
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# warn if record of host not found
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printf "%sNOT FOUND%s\n" "$warn" "$norm" >>"$logFile"
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printf "%s[%s] WARN: Cannot find existing record to update for DNS entry: %s%s\n" "$warn" "$(stamp)" "$record" "$norm" >>"$logFile"
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writeLog process-warning "NOT FOUND"
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writeLog warn "Cannot find existing record to update for DNS entry: ${record}"
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invalidDomainCount=$((invalidDomainCount + 1))
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continue
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fi
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objectId=$(printf "%s" "$cfLookup" | jq -r '.result | .[] | .id')
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currentIpAddr=$(printf "%s" "$cfLookup" | jq -r '.result | .[] | .content')
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printf "FOUND: IP = %s\n" "$currentIpAddr" >>"$logFile"
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writeLog process-done "FOUND: IP = ${currentIpAddr}"
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# skip to next hostname if record already up-to-date
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if [ "$currentIpAddr" = "$ipAddress" ]; then
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printf "%s[%s] IP address for %s is already up-to-date%s\n" "$ok" "$(stamp)" "$record" "$norm" >>"$logFile"
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writeLog stamped "IP address for ${record} is already up-to-date"
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continue
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fi
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# update record
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printf "%s[%s] Updating IP address for %s... " "$cyan" "$(stamp)" "$record" >>"$logFile"
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writeLog process "Updating IP address for ${record}"
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updateJSON="$(jq -n --arg key0 content --arg value0 "${ipAddress}" '{($key0):$value0}')"
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# exit if curl/network error
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@ -468,19 +509,19 @@ while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator"
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-H "Authorization: Bearer ${cfKey}" \
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-H "Content-Type: application/json" \
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--data "${updateJSON}")"; then
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printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
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writeLog process-error
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exitError 3
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fi
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# note update success or failure
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cfSuccess="$(printf "%s" "$cfResult" | jq '.success')"
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if [ "$cfSuccess" = "true" ]; then
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printf "DONE%s\n" "$norm" >>"$logFile"
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printf "%s[%s] SUCCESS: IP address for %s updated%s\n" "$ok" "$(stamp)" "$record" "$norm" >>"$logFile"
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writeLog process-done "DONE"
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writeLog success "IP address for ${record} updated."
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else
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printf "%sFAILED%s\n" "$err" "$norm" >>"$logFile"
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writeLog process-error
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listCFErrors "$cfResult"
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printf "%s[%s] ERR: Unable to update IP address for %s%s\n" "$err" "$(stamp)" "$record" "$norm" >>"$logFile"
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writeLog err "Unable to update IP address for ${record}"
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# do not exit with error, API error here is probably an update issue specific to this host
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# increment counter and note it after all processing finished
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failedHostCount=$((failedHostCount + 1))
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@ -489,7 +530,7 @@ done
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# exit
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if [ "$invalidDomainCount" -ne 0 ]; then
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printf "%s[%s] WARNING: %s invalid host(s) were supplied for updating%s\n" "$warn" "$(stamp)" "$invalidDomainCount" "$norm" >>"$logFile"
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writeLog warning "${invalidDomainCount} invalid host(s) were supplied for updating."
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fi
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if [ "$failedHostCount" -ne 0 ]; then
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exitError 26
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