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feature: initial logging, add curl check

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This commit is contained in:
Asif Bacchus 2021-05-07 13:59:07 -06:00
parent 911526dd08
commit 5a477d6c86
1 changed files with 41 additions and 17 deletions
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58
cfddns.posix.sh
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@ -57,7 +57,7 @@ scriptHelp() {
quit() { quit() {
if [ -z "$1" ]; then if [ -z "$1" ]; then
# exit gracefully # exit gracefully
printf "\n%s%s -- %s completed --%s\n\n" "$ok" "$(stamp)" "$scriptName" "$norm" >>"$logFile" printf "%s[%s] -- CloudFlare DDNS update-script: execution complete --%s\n" "$ok" "$(stamp)" "$norm" >>"$logFile"
exit 0 exit 0
fi fi
} }
@ -148,25 +148,49 @@ while [ $# -gt 0 ]; do
done done
### pre-flight checks ### pre-flight checks
if ! command -v curl >/dev/null; then
printf "\n%sThis script requires curl be installed and accessible. Exiting.%s\n\n" "$err" "$norm"
exit 2
fi
[ -z "$dnsRecords" ] && badParam errMsg "You must specify at least one DNS record to update. Exiting." [ -z "$dnsRecords" ] && badParam errMsg "You must specify at least one DNS record to update. Exiting."
[ "$ip4" -eq 1 ] && [ "$ip6" -eq 1 ] && badParam errMsg "Cannot operate in IP4 and IP6 modes simultaneously. Exiting." [ "$ip4" -eq 1 ] && [ "$ip6" -eq 1 ] && badParam errMsg "Cannot operate in IP4 and IP6 modes simultaneously. Exiting."
# turn off log file colourization if parameter is set
printf "\nscript: %s\n" "$scriptPath/$scriptName" if [ "$colourizeLogFile" -eq 0 ]; then
printf "accountFile: %s\n" "$accountFile" bold=""
printf "colourize: %s\n" "$colourizeLogFile" cyan=""
if [ "$ip4" = 1 ]; then err=""
printf "mode: IP4\n" magenta=""
elif [ "$ip6" = 1 ]; then norm=""
printf "mode: IP6\n" ok=""
warn=""
yellow=""
fi fi
printf "ip address: %s\n" "$ipAddress"
# iterate DNS records to update ### initial log entries
dnsRecordsToUpdate="$dnsRecords$dnsSeparator" {
while [ "$dnsRecordsToUpdate" != "${dnsRecordsToUpdate#*${dnsSeparator}}" ] && { [ -n "${dnsRecordsToUpdate%%${dnsSeparator}*}" ] || [ -n "${dnsRecordsToUpdate#*${dnsSeparator}}" ]; }; do printf "%s[%s] -- CloudFlare DDNS update-script: execution starting --%s\n" "$ok" "$(stamp)" "$norm"
record="${dnsRecordsToUpdate%%${dnsSeparator}*}" printf "%sParameters:\n" "$magenta"
dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}" printf "script path: %s\n" "$scriptPath/$scriptName"
printf "update record: %s\n" "$record" printf "credentials file: %s\n" "$accountFile"
done if [ "$ip4" = 1 ]; then
printf "mode: IP4\n"
elif [ "$ip6" = 1 ]; then
printf "mode: IP6\n"
fi
printf "ddns ip address: %s\n" "$ipAddress"
# iterate DNS records to update
dnsRecordsToUpdate="$dnsRecords$dnsSeparator"
while [ "$dnsRecordsToUpdate" != "${dnsRecordsToUpdate#*${dnsSeparator}}" ] && { [ -n "${dnsRecordsToUpdate%%${dnsSeparator}*}" ] || [ -n "${dnsRecordsToUpdate#*${dnsSeparator}}" ]; }; do
record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
printf "updating record: %s\n" "$record"
done
printf "(end of parameter list)%s\n" "$norm"
} >>"$logFile"
exit 0 exit 0
### exit return codes
# 0: normal exit, no errors
# 1: invalid or unknown parameter
# 2: cannot find or access curl