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@ -1,7 +1,7 @@
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#!/bin/sh
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#!/bin/sh
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#
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#
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# update CloudFlare DNS records with current (dynamic) IP address
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# update Cloudflare DNS records with current (dynamic) IP address
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# Script by Asif Bacchus <asif@bacchus.cloud>
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# Script by Asif Bacchus <asif@bacchus.cloud>
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# Last modified: May 7, 2021
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# Last modified: May 7, 2021
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#
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#
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@ -47,36 +47,142 @@ badParam() {
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exitError() {
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exitError() {
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case "$1" in
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case "$1" in
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3)
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errMsg="Unable to connect to Cloudflare servers. This is probably a temporary networking issue. Please try again later."
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;;
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10)
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10)
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errMsg="Unable to auto-detect IP address. Try again later or supply the IP address to be used."
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errMsg="Unable to auto-detect IP address. Try again later or supply the IP address to be used."
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;;
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;;
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20)
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20)
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errMsg="CloudFlare authorized email address (cfEmail) is either null or undefined. Please check your CloudFlare credentials file."
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errMsg="Cloudflare authorized email address (cfEmail) is either null or undefined. Please check your Cloudflare credentials file."
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;;
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;;
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21)
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21)
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errMsg="CloudFlare authorized API key (cfKey) is either null or undefined. Please check your CloudFlare credentials file."
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errMsg="Cloudflare authorized API key (cfKey) is either null or undefined. Please check your Cloudflare credentials file."
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;;
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;;
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22)
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22)
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errMsg="CloudFlare zone id (cfZoneId) is either null or undefined. Please check your CloudFlare credentials file."
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errMsg="Cloudflare zone id (cfZoneId) is either null or undefined. Please check your Cloudflare credentials file."
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;;
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;;
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25)
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25)
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errMsg="Unable to query CloudFlare account. Please re-check your credentials and try again later."
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errMsg="Cloudflare API error. Please review any 'CF-ERR:' lines in this log for details."
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;;
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;;
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98)
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26)
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errMsg="One or more domain updates failed. Please review this log file for details."
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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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*)
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*)
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printf "%s[%s] ERROR: An unspecified error occurred. Exiting.%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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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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exit 99
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;;
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;;
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esac
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esac
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printf "%s[%s] ERROR: %s (code: %s)%s\n" "$err" "$(stamp)" "$errMsg" "$1" "$norm" >>"$logFile"
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writeLog error "$errMsg" "$1"
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printf "%s[%s] -- CloudFlare DDNS update-script: execution completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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printf "%s[%s] -- Cloudflare DDNS update-script: completed with error(s) --%s\n" "$err" "$(stamp)" "$norm" >>"$logFile"
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exit "$1"
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exit "$1"
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}
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}
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exitOK() {
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exitOK() {
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printf "%s[%s] -- CloudFlare DDNS update-script: execution complete --%s\n" "$ok" "$(stamp)" "$norm" >>"$logFile"
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printf "%s[%s] -- Cloudflare DDNS update-script: completed successfully --%s\n" "$ok" "$(stamp)" "$norm" >>"$logFile"
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exit 0
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}
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listCFErrors() {
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# extract error codes and messages in separate variables, replace newlines with underscores
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codes="$(printf "%s" "$1" | jq -r '.errors | .[] | .code' | tr '\n' '_')"
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messages="$(printf "%s" "$1" | jq -r '.errors | .[] | .message' | tr '\n' '_')"
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# iterate codes and messages and assemble into coherent messages in log
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while [ -n "$codes" ] && [ -n "$messages" ]; do
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# get first code and message in respective sets
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code="${codes%%_*}"
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message="${messages%%_*}"
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# update codes and messages sets by removing first item in each set
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codes="${codes#*_}"
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messages="${messages#*_}"
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# output to log
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writeLog cf "$message" "$code"
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done
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}
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scriptExamples() {
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newline
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printf "Update Cloudflare DNS host A/AAAA records with current IP address.\n"
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printf "%sUsage: %s --records host.domain.tld[,host2.domain.tld,...] [parameters]%s\n\n" "$bold" "$scriptName" "$norm"
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textBlock "${magenta}--- usage examples ---${norm}"
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net"
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textBlock "Update Cloudflare DNS records for myserver.mydomain.net with the auto-detected public IP4 address. Credentials will be expected in the default location and the log will be written in the default location also."
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net -6"
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textBlock "Same as above, but update AAAA host records with the auto-detected public IP6 address."
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net,myserver2.mydomain.net -l /var/log/cfddns.log --nc"
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textBlock "Update DNS entries for both listed hosts using auto-detected IP4 address. Write a non-coloured log to '/var/log/cfddns.log'."
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net,myserver2.mydomain.net -l /var/log/cfddns.log --ip6 --ip fd21:7a62:2737:9c3a::a151"
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textBlock "Update DNS AAAA entries for listed hosts using the *specified* IP address. Write a colourful log to the location specified."
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net -c /root/cloudflare.creds -l /var/log/cfddns.log --ip 1.2.3.4"
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textBlock "Update DNS A entry for listed hostname with the provided IP address. Read cloudflare credentials file from specified location, save log in specified location."
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newline
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textBlockSwitches "${scriptName} -r myserver.mydomain.net -c /root/cloudflare.creds -l /var/log/cfddns.log -6 -i fd21:7a62:2737:9c3a::a151"
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textBlock "Exact same as above, but change the AAAA record. This is how you run the script once for IP4 and again for IP6."
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exit 0
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}
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scriptHelp() {
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newline
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printf "Update Cloudflare DNS host A/AAAA records with current IP address.\n"
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printf "%sUsage: %s --records host.domain.tld[,host2.domain.tld,...] [parameters]%s\n\n" "$bold" "$scriptName" "$norm"
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textBlock "The only required parameter is '--records' which is a comma-delimited list of hostnames to update. However, there are several other options which may be useful to implement."
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textBlock "Parameters are listed below and followed by a description of their effect. If a default value exists, it will be listed on the following line in (parentheses)."
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newline
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textBlock "${magenta}--- script related parameters ---${norm}"
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newline
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textBlockSwitches "-c | --cred | --creds | --credentials | -f (deprecated, backward-compatibility)"
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textBlock "Path to file containing your Cloudflare *token* credentials. Please refer to the repo README for more information on format, etc."
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textBlockDefaults "(${accountFile})"
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newline
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textBlockSwitches "-l | --log"
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textBlock "Path where the log file should be written."
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textBlockDefaults "(${logFile})"
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newline
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textBlockSwitches "--nc | --no-color | --no-colour"
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textBlock "Switch value. Disables ANSI colours in the log. Useful if you review the logs using a reader that does not parse ANSI colour codes."
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textBlockDefaults "(disabled: print logs in colour)"
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newline
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textBlockSwitches "--log-console"
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textBlock "Switch value. Output log to console (stdout) instead of a log file. Can be combined with --nc if desired."
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textBlockDefaults "(disabled: output to log file)"
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newline
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textBlockSwitches "--no-log"
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textBlock "Switch value. Do not create a log (i.e. no console, no file). You will not have *any* output from the script if you choose this option, so you will not know if updates succeeded or failed."
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textBlockDefaults "(disabled: output to log file)"
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newline
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textBlockSwitches "-h | --help | -?"
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textBlock "Display this help screen."
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newline
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textBlockSwitches "--examples"
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textBlock "Show some usage examples."
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newline
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textBlock "${magenta}--- DNS related parameters ---${norm}"
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newline
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textBlockSwitches "-r | --record | --records"
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textBlock "Comma-delimited list of hostnames for which IP addresses should be updated in Cloudflare DNS. This parameter is REQUIRED. Note that this script will only *update* records, it will not create new ones. If you supply hostnames that are not already defined in DNS, the script will log a warning and will skip those hostnames."
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newline
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textBlockSwitches "-i | --ip | --ip-address | -a | --address"
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textBlock "New IP address for DNS host records. If you omit this, the script will attempt to auto-detect your public IP address and use that."
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newline
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textBlockSwitches "-4 | --ip4 | --ipv4"
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textBlock "Switch value. Update Host 'A' records (IP4) only. Note that this script can only update either A *or* AAAA records. If you need to update both, you'll have to run the script once in IP4 mode and again in IP6 mode. If you specify both this switch and the IP6 switch, the last one specified will take effect."
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textBlockDefaults "(enabled: update A records)"
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newline
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textBlockSwitches "-6 | --ip6 | --ipv6"
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textBlock "Switch value. Update Host 'AAAA' records (IP6) only. Note that this script can only update either A *or* AAAA records. If you need to update both, you'll have to run the script once in IP4 mode and again in IP6 mode. If you specify both this switch and the IP4 switch, the last one specified will take effect."
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textBlockDefaults "(disabled: update A records)"
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newline
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textBlock "Please refer to the repo README for more detailed information regarding this script and how to automate and monitor it."
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newline
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exit 0
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exit 0
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}
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}
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@ -84,102 +190,61 @@ stamp() {
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(date +%F" "%T)
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(date +%F" "%T)
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}
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}
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scriptHelp() {
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newline() {
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newline
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printf "\n"
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printf "Update CloudFlare DNS host A/AAAA records with current IP address.\n"
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printf "%sUsage: %s --records host.domain.tld[,host2.domain.tld,...] [parameters]%s\n\n" "$bold" "$scriptName" "$norm"
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textblock "The only required parameter is '--records' which is a comma-delimited list of hostnames to update. However, there are several other options which may be useful to implement."
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textblock "Paramters are listed below and followed by a description of their effect. If a default value exists, it will be listed on the following line in (parentheses)."
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newline
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textblock "${magenta}--- script related parameters ---${norm}"
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newline
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textblockSwitches "-c | --cred | --creds | --credentials | -f (deprecated, backward-compatability)"
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textblock "Path to file containing your CloudFlare *token* credentials. Please refer to the repo README for more information on format, etc."
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textblockDefaults "(${accountFile})"
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newline
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textblockSwitches "-l | --log"
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textblock "Path where the log file should be written."
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textblockDefaults "(${logFile})"
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newline
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textblockSwitches "--nc | --no-color | --no-colour"
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textblock "Switch value. Disables ANSI colours in the log. Useful if you review the logs using a reader that does not parse ANSI colour codes."
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textblockDefaults "(disabled: print logs in colour)"
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newline
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textblockSwitches "--log-console"
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textblock "Switch value. Output log to console (stdout) instead of a log file. Can be combined with --nc if desired."
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textblockDefaults "(disabled: output to log file)"
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newline
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textblockSwitches "--no-log"
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textblock "Switch value. Do not create a log (i.e. no console, no file). You will not have *any* output from the script if you choose this option, so you will not know if updates succeeded or failed."
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textblockDefaults "(disabled: output to log file)"
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newline
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textblockSwitches "-h | --help | -?"
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textblock "Display this help screen."
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newline
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textblockSwitches "--examples"
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textblock "Show some usage examples."
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newline
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textblock "${magenta}--- DNS related parameters ---${norm}"
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newline
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textblockSwitches "-r | --record | --records"
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textblock "Comma-delimited list of hostnames for which IP addresses should be updated in CloudFlare DNS. This parameter is REQUIRED. Note that this script will only *update* records, it will not create new ones. If you supply hostnames that are not already defined in DNS, the script will log a warning and will skip those hostnames."
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|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "-i | --ip | --ip-address | -a | --address"
|
|
|
|
|
|
|
|
textblock "New IP address for DNS host records. If you omit this, the script will attempt to auto-detect your public IP address and use that."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "-4 | --ip4 | --ipv4"
|
|
|
|
|
|
|
|
textblock "Switch value. Update Host 'A' records (IP4) only. Note that this script can only update either A *or* AAAA records. If you need to update both, you'll have to run the script once in IP4 mode and again in IP6 mode. If you specify both this switch and the IP6 switch, the last one specified will take effect."
|
|
|
|
|
|
|
|
textblockDefaults "(enabled: update A records)"
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "-6 | --ip6 | --ipv6"
|
|
|
|
|
|
|
|
textblock "Switch value. Update Host 'AAAA' records (IP6) only. Note that this script can only update either A *or* AAAA records. If you need to update both, you'll have to run the script once in IP4 mode and again in IP6 mode. If you specify both this switch and the IP4 switch, the last one specified will take effect."
|
|
|
|
|
|
|
|
textblockDefaults "(disabled: update A records)"
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblock "Please refer to the repo README for more detailed information regarding this script and how to automate and monitor it."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
exit 0
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
scriptExamples() {
|
|
|
|
textBlock() {
|
|
|
|
newline
|
|
|
|
|
|
|
|
printf "Update CloudFlare DNS host A/AAAA records with current IP address.\n"
|
|
|
|
|
|
|
|
printf "%sUsage: %s --records host.domain.tld[,host2.domain.tld,...] [parameters]%s\n\n" "$bold" "$scriptName" "$norm"
|
|
|
|
|
|
|
|
textblock "${magenta}--- usage examples ---${norm}"
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net"
|
|
|
|
|
|
|
|
textblock "Update CloudFlare DNS records for myserver.mydomain.net with the auto-detected public IP4 address. Credentials will be expected in the default location and the log will be written in the default location also."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net -6"
|
|
|
|
|
|
|
|
textblock "Same as above, but update AAAA host records with the auto-detected public IP6 address."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net,otherserver.mydomain.net -l /var/log/cfddns.log --nc"
|
|
|
|
|
|
|
|
textblock "Update DNS entries for both listed hosts using auto-detected IP4 address. Write a non-coloured log to '/var/log/cfddns.log'."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net,otherserver.mydomain.net -l /var/log/cfddns.log --ip6 --ip fd21:7a62:2737:9c3a::a151"
|
|
|
|
|
|
|
|
textblock "Update DNS AAAA entries for listed hosts using the *specified* IP address. Write a colourful log to the location specified."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net -c /root/cloudflare.creds -l /var/log/cfddns.log --ip 1.2.3.4"
|
|
|
|
|
|
|
|
textblock "Update DNS A entry for listed hostname with the provided IP address. Read cloudflare credentials file from specified location, save log in specified location."
|
|
|
|
|
|
|
|
newline
|
|
|
|
|
|
|
|
textblockSwitches "${scriptName} -r myserver.mydomain.net -c /root/cloudflare.creds -l /var/log/cfddns.log -6 -i fd21:7a62:2737:9c3a::a151"
|
|
|
|
|
|
|
|
textblock "Exact same as above, but change the AAAA record. This is how you run the script once for IP4 and again for IP6."
|
|
|
|
|
|
|
|
exit 0
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
textblock() {
|
|
|
|
|
|
|
|
printf "%s\n" "$1" | fold -w "$width" -s
|
|
|
|
printf "%s\n" "$1" | fold -w "$width" -s
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
textblockDefaults() {
|
|
|
|
textBlockDefaults() {
|
|
|
|
printf "%s%s%s\n" "$yellow" "$1" "$norm"
|
|
|
|
printf "%s%s%s\n" "$yellow" "$1" "$norm"
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
textblockSwitches() {
|
|
|
|
textBlockSwitches() {
|
|
|
|
printf "%s%s%s\n" "$cyan" "$1" "$norm"
|
|
|
|
printf "%s%s%s\n" "$cyan" "$1" "$norm"
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
newline() {
|
|
|
|
writeLog() {
|
|
|
|
printf "\n"
|
|
|
|
case "$1" in
|
|
|
|
|
|
|
|
cf)
|
|
|
|
|
|
|
|
printf "[%s] CF-ERR: %s (code: %s)\n" "$(stamp)" "$2" "$3" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
err)
|
|
|
|
|
|
|
|
printf "%s[%s] ERR: %s%s\n" "$err" "$(stamp)" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
error)
|
|
|
|
|
|
|
|
printf "%s[%s] ERROR: %s (code: %s)%s\n" "$err" "$(stamp)" "$2" "$3" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
process)
|
|
|
|
|
|
|
|
printf "%s[%s] %s... %s" "$cyan" "$(stamp)" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
process-done)
|
|
|
|
|
|
|
|
printf "%s%s%s\n" "$cyan" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
process-error)
|
|
|
|
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
process-warning)
|
|
|
|
|
|
|
|
printf "%s%s%s\n" "$warn" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
stamped)
|
|
|
|
|
|
|
|
printf "[%s] %s\n" "$(stamp)" "$2" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
success)
|
|
|
|
|
|
|
|
printf "%s[%s] SUCCESS: %s%s\n" "$ok" "$(stamp)" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
warn)
|
|
|
|
|
|
|
|
printf "%s[%s] WARN: %s%s\n" "$warn" "$(stamp)" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
warning)
|
|
|
|
|
|
|
|
printf "%s[%s] WARNING: %s%s\n" "$warn" "$(stamp)" "$2" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
*)
|
|
|
|
|
|
|
|
printf "%s\n" "$2" >>"$logFile"
|
|
|
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
esac
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
### default variable values
|
|
|
|
### default variable values
|
|
|
@ -196,7 +261,7 @@ ip6=0
|
|
|
|
ip4DetectionSvc="http://ipv4.icanhazip.com"
|
|
|
|
ip4DetectionSvc="http://ipv4.icanhazip.com"
|
|
|
|
ip6DetectionSvc="http://ipv6.icanhazip.com"
|
|
|
|
ip6DetectionSvc="http://ipv6.icanhazip.com"
|
|
|
|
invalidDomainCount=0
|
|
|
|
invalidDomainCount=0
|
|
|
|
failedDomainCount=0
|
|
|
|
failedHostCount=0
|
|
|
|
|
|
|
|
|
|
|
|
### process startup parameters
|
|
|
|
### process startup parameters
|
|
|
|
if [ -z "$1" ]; then
|
|
|
|
if [ -z "$1" ]; then
|
|
|
@ -234,7 +299,7 @@ while [ $# -gt 0 ]; do
|
|
|
|
colourizeLogFile=0
|
|
|
|
colourizeLogFile=0
|
|
|
|
;;
|
|
|
|
;;
|
|
|
|
-c | --cred* | -f)
|
|
|
|
-c | --cred* | -f)
|
|
|
|
# path to CloudFlare credentials file
|
|
|
|
# path to Cloudflare credentials file
|
|
|
|
if [ -n "$2" ]; then
|
|
|
|
if [ -n "$2" ]; then
|
|
|
|
if [ -f "$2" ] && [ -s "$2" ]; then
|
|
|
|
if [ -f "$2" ] && [ -s "$2" ]; then
|
|
|
|
accountFile="${2%/}"
|
|
|
|
accountFile="${2%/}"
|
|
|
@ -295,7 +360,7 @@ fi
|
|
|
|
[ -z "$dnsRecords" ] && badParam errMsg "You must specify at least one DNS record to update. Exiting."
|
|
|
|
[ -z "$dnsRecords" ] && badParam errMsg "You must specify at least one DNS record to update. Exiting."
|
|
|
|
# verify credentials file exists and is not empty (default check)
|
|
|
|
# verify credentials file exists and is not empty (default check)
|
|
|
|
if [ ! -f "$accountFile" ] || [ ! -s "$accountFile" ]; then
|
|
|
|
if [ ! -f "$accountFile" ] || [ ! -s "$accountFile" ]; then
|
|
|
|
badParam errMsg "Cannot find CloudFlare credentials file (${accountFile}). Exiting."
|
|
|
|
badParam errMsg "Cannot find Cloudflare credentials file (${accountFile}). Exiting."
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
# turn off log file colourization if parameter is set
|
|
|
|
# turn off log file colourization if parameter is set
|
|
|
|
if [ "$colourizeLogFile" -eq 0 ]; then
|
|
|
|
if [ "$colourizeLogFile" -eq 0 ]; then
|
|
|
@ -311,50 +376,52 @@ fi
|
|
|
|
|
|
|
|
|
|
|
|
### initial log entries
|
|
|
|
### initial log entries
|
|
|
|
{
|
|
|
|
{
|
|
|
|
printf "%s[%s] -- CloudFlare DDNS update-script: execution starting --%s\n" "$ok" "$(stamp)" "$norm"
|
|
|
|
printf "%s[%s] -- Cloudflare DDNS update-script: starting --%s\n" "$ok" "$(stamp)" "$norm"
|
|
|
|
printf "%sParameters:\n" "$magenta"
|
|
|
|
printf "Parameters:\n"
|
|
|
|
printf "script path: %s\n" "$scriptPath/$scriptName"
|
|
|
|
printf "script path: %s\n" "$scriptPath/$scriptName"
|
|
|
|
printf "credentials file: %s\n" "$accountFile"
|
|
|
|
printf "credentials file: %s\n" "$accountFile"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
|
|
|
|
printf "mode: IP4\n"
|
|
|
|
|
|
|
|
elif [ "$ip6" -eq 1 ]; then
|
|
|
|
|
|
|
|
printf "mode: IP6\n"
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# detect and report IP address
|
|
|
|
|
|
|
|
if [ -z "$ipAddress" ]; then
|
|
|
|
|
|
|
|
# detect public ip address
|
|
|
|
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
|
|
|
|
if ! ipAddress="$(curl -s $ip4DetectionSvc)"; then
|
|
|
|
|
|
|
|
printf "ddns ip address:%s ERROR%s\n" "$err" "$norm"
|
|
|
|
|
|
|
|
exitError 10
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
if [ "$ip6" -eq 1 ]; then
|
|
|
|
|
|
|
|
if ! ipAddress="$(curl -s $ip6DetectionSvc)"; then
|
|
|
|
|
|
|
|
printf "ddns ip address:%s ERROR%s\n" "$err" "$norm"
|
|
|
|
|
|
|
|
exitError 10
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
printf "ddns ip address (detected): %s\n" "$ipAddress"
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
printf "ddns ip address (supplied): %s\n" "$ipAddress"
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# iterate DNS records to update
|
|
|
|
|
|
|
|
dnsRecordsToUpdate="$(printf '%s' "${dnsRecords}" | sed "s/${dnsSeparator}*$//")$dnsSeparator"
|
|
|
|
|
|
|
|
while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator" ]; do
|
|
|
|
|
|
|
|
record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
|
|
|
|
|
|
|
|
dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if [ -z "$record" ]; then continue; fi
|
|
|
|
|
|
|
|
printf "updating record: %s\n" "$record"
|
|
|
|
|
|
|
|
done
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
printf "(end of parameter list)\n"
|
|
|
|
} >>"$logFile"
|
|
|
|
} >>"$logFile"
|
|
|
|
|
|
|
|
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
### read Cloudflare credentials
|
|
|
|
printf "mode: IP4\n" >>"$logFile"
|
|
|
|
writeLog process "Reading Cloudflare credentials"
|
|
|
|
elif [ "$ip6" -eq 1 ]; then
|
|
|
|
|
|
|
|
printf "mode: IP6\n" >>"$logFile"
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# detect and report IP address
|
|
|
|
|
|
|
|
if [ -z "$ipAddress" ]; then
|
|
|
|
|
|
|
|
# detect public ip address
|
|
|
|
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
|
|
|
|
if ! ipAddress="$(curl -s $ip4DetectionSvc)"; then
|
|
|
|
|
|
|
|
printf "ddns ip address: %serror%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
exitError 10
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
if [ "$ip6" -eq 1 ]; then
|
|
|
|
|
|
|
|
if ! ipAddress="$(curl -s $ip6DetectionSvc)"; then
|
|
|
|
|
|
|
|
printf "ddns ip address: %serror%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
exitError 10
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
printf "ddns ip address (detected): %s\n" "$ipAddress" >>"$logFile"
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
printf "ddns ip address (supplied): %s\n" "$ipAddress" >>"$logFile"
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# 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" >>"$logFile"
|
|
|
|
|
|
|
|
done
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
printf "(end of parameter list)%s\n" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### read CloudFlare credentials
|
|
|
|
|
|
|
|
printf "[%s] Reading CloudFlare credentials... " "$(stamp)" >>"$logFile"
|
|
|
|
|
|
|
|
case "$accountFile" in
|
|
|
|
case "$accountFile" in
|
|
|
|
/*)
|
|
|
|
/*)
|
|
|
|
# absolute path, use as-is
|
|
|
|
# absolute path, use as-is
|
|
|
@ -367,78 +434,105 @@ case "$accountFile" in
|
|
|
|
. "./$accountFile"
|
|
|
|
. "./$accountFile"
|
|
|
|
;;
|
|
|
|
;;
|
|
|
|
esac
|
|
|
|
esac
|
|
|
|
if [ -z "$cfEmail" ]; then
|
|
|
|
if [ -z "$cfKey" ]; then
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
writeLog process-error
|
|
|
|
exitError 20
|
|
|
|
|
|
|
|
elif [ -z "$cfKey" ]; then
|
|
|
|
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
exitError 21
|
|
|
|
exitError 21
|
|
|
|
elif [ -z "$cfZoneId" ]; then
|
|
|
|
fi
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
if [ -z "$cfZoneId" ]; then
|
|
|
|
|
|
|
|
writeLog process-error
|
|
|
|
exitError 22
|
|
|
|
exitError 22
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
printf "DONE%s\n" "$norm" >>"$logFile"
|
|
|
|
writeLog process-done "DONE"
|
|
|
|
|
|
|
|
|
|
|
|
### check if records to be updated exist and if they need updating, update as required
|
|
|
|
### connect to Cloudflare and do what needs to be done!
|
|
|
|
dnsRecordsToUpdate="$dnsRecords$dnsSeparator"
|
|
|
|
dnsRecordsToUpdate="$dnsRecords$dnsSeparator"
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
if [ "$ip4" -eq 1 ]; then
|
|
|
|
recordType="A"
|
|
|
|
recordType="A"
|
|
|
|
elif [ "$ip6" -eq 1 ]; then
|
|
|
|
elif [ "$ip6" -eq 1 ]; then
|
|
|
|
recordType="AAAA"
|
|
|
|
recordType="AAAA"
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
while [ "$dnsRecordsToUpdate" != "${dnsRecordsToUpdate#*${dnsSeparator}}" ] && { [ -n "${dnsRecordsToUpdate%%${dnsSeparator}*}" ] || [ -n "${dnsRecordsToUpdate#*${dnsSeparator}}" ]; }; do
|
|
|
|
|
|
|
|
|
|
|
|
# iterate hosts to update
|
|
|
|
|
|
|
|
while [ -n "$dnsRecordsToUpdate" ] && [ "$dnsRecordsToUpdate" != "$dnsSeparator" ]; do
|
|
|
|
record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
|
|
|
|
record="${dnsRecordsToUpdate%%${dnsSeparator}*}"
|
|
|
|
dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
|
|
|
|
dnsRecordsToUpdate="${dnsRecordsToUpdate#*${dnsSeparator}}"
|
|
|
|
printf "[%s] Processing %s... " "$(stamp)" "$record" >>"$logFile"
|
|
|
|
|
|
|
|
# check for existing record, else exit with error (this script does NOT create new records, only updates them!)
|
|
|
|
if [ -z "$record" ]; then continue; fi
|
|
|
|
if ! cfResult="$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/${cfZoneId}/dns_records?name=${record}&type=${recordType}" \
|
|
|
|
writeLog process "Processing ${record}"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# exit if curl/network error
|
|
|
|
|
|
|
|
if ! cfLookup="$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/${cfZoneId}/dns_records?name=${record}&type=${recordType}" \
|
|
|
|
-H "Authorization: Bearer ${cfKey}" \
|
|
|
|
-H "Authorization: Bearer ${cfKey}" \
|
|
|
|
-H "Content-Type: application/json")"; then
|
|
|
|
-H "Content-Type: application/json")"; then
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
writeLog process-error
|
|
|
|
|
|
|
|
exitError 3
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# exit if API error
|
|
|
|
|
|
|
|
# exit here since API errors on GET request probably indicates authentication error which would affect all remaining operations
|
|
|
|
|
|
|
|
# no reason to continue processing other hosts and pile-up errors which might look like a DoS attempt
|
|
|
|
|
|
|
|
cfSuccess="$(printf "%s" "$cfLookup" | jq -r '.success')"
|
|
|
|
|
|
|
|
if [ "$cfSuccess" = "false" ]; then
|
|
|
|
|
|
|
|
writeLog process-error
|
|
|
|
|
|
|
|
listCFErrors "$cfLookup"
|
|
|
|
exitError 25
|
|
|
|
exitError 25
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
resultCount="$(printf "%s" "$cfResult" | jq '.result_info.count')"
|
|
|
|
|
|
|
|
|
|
|
|
resultCount="$(printf "%s" "$cfLookup" | jq '.result_info.count')"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# skip to next host if cannot find existing host record (this script *updates* only, does not create!)
|
|
|
|
if [ "$resultCount" = "0" ]; then
|
|
|
|
if [ "$resultCount" = "0" ]; then
|
|
|
|
printf "%sNOT FOUND%s\n" "$warn" "$norm" >>"$logFile"
|
|
|
|
# warn if record of host not found
|
|
|
|
printf "%s[%s] WARNING: Cannot find existing record to update for DNS entry: %s%s\n" "$warn" "$(stamp)" "$record" "$norm" >>"$logFile"
|
|
|
|
writeLog process-warning "NOT FOUND"
|
|
|
|
|
|
|
|
writeLog warn "Cannot find existing record to update for DNS entry: ${record}"
|
|
|
|
invalidDomainCount=$((invalidDomainCount + 1))
|
|
|
|
invalidDomainCount=$((invalidDomainCount + 1))
|
|
|
|
|
|
|
|
continue
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
objectId=$(printf "%s" "$cfLookup" | jq -r '.result | .[] | .id')
|
|
|
|
|
|
|
|
currentIpAddr=$(printf "%s" "$cfLookup" | jq -r '.result | .[] | .content')
|
|
|
|
|
|
|
|
writeLog process-done "FOUND: IP = ${currentIpAddr}"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# skip to next hostname if record already up-to-date
|
|
|
|
|
|
|
|
if [ "$currentIpAddr" = "$ipAddress" ]; then
|
|
|
|
|
|
|
|
writeLog stamped "IP address for ${record} is already up-to-date"
|
|
|
|
|
|
|
|
continue
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# update record
|
|
|
|
|
|
|
|
writeLog process "Updating IP address for ${record}"
|
|
|
|
|
|
|
|
updateJSON="$(jq -n --arg key0 content --arg value0 "${ipAddress}" '{($key0):$value0}')"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# exit if curl/network error
|
|
|
|
|
|
|
|
if ! cfResult="$(curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/${cfZoneId}/dns_records/${objectId}" \
|
|
|
|
|
|
|
|
-H "Authorization: Bearer ${cfKey}" \
|
|
|
|
|
|
|
|
-H "Content-Type: application/json" \
|
|
|
|
|
|
|
|
--data "${updateJSON}")"; then
|
|
|
|
|
|
|
|
writeLog process-error
|
|
|
|
|
|
|
|
exitError 3
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# note update success or failure
|
|
|
|
|
|
|
|
cfSuccess="$(printf "%s" "$cfResult" | jq '.success')"
|
|
|
|
|
|
|
|
if [ "$cfSuccess" = "true" ]; then
|
|
|
|
|
|
|
|
writeLog process-done "DONE"
|
|
|
|
|
|
|
|
writeLog success "IP address for ${record} updated."
|
|
|
|
else
|
|
|
|
else
|
|
|
|
objectId=$(printf "%s" "$cfResult" | jq -r '.result | .[] | .id')
|
|
|
|
writeLog process-error
|
|
|
|
currentIpAddr=$(printf "%s" "$cfResult" | jq -r '.result | .[] | .content')
|
|
|
|
listCFErrors "$cfResult"
|
|
|
|
printf "FOUND: IP = %s\n" "$currentIpAddr" >>"$logFile"
|
|
|
|
writeLog err "Unable to update IP address for ${record}"
|
|
|
|
# check if record needs updating
|
|
|
|
# do not exit with error, API error here is probably an update issue specific to this host
|
|
|
|
if [ "$currentIpAddr" = "$ipAddress" ]; then
|
|
|
|
# increment counter and note it after all processing finished
|
|
|
|
printf "%s[%s] IP address for %s is already up-to-date%s\n" "$ok" "$(stamp)" "$record" "$norm" >>"$logFile"
|
|
|
|
failedHostCount=$((failedHostCount + 1))
|
|
|
|
else
|
|
|
|
|
|
|
|
# update record
|
|
|
|
|
|
|
|
printf "%s[%s] Updating IP address for %s... " "$cyan" "$(stamp)" "$record" >>"$logFile"
|
|
|
|
|
|
|
|
updateJSON="$(jq -n --arg key0 content --arg value0 "${ipAddress}" '{($key0):$value0}')"
|
|
|
|
|
|
|
|
if ! cfResult="$(curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/${cfZoneId}/dns_records/${objectId}" \
|
|
|
|
|
|
|
|
-H "Authorization: Bearer ${cfKey}" \
|
|
|
|
|
|
|
|
-H "Content-Type: application/json" \
|
|
|
|
|
|
|
|
--data "${updateJSON}")"; then
|
|
|
|
|
|
|
|
printf "%sERROR%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
exitError 25
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
updateSuccess="$(printf "%s" "$cfResult" | jq '.success')"
|
|
|
|
|
|
|
|
if [ "$updateSuccess" = "true" ]; then
|
|
|
|
|
|
|
|
printf "DONE%s\n" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
printf "%s[%s] SUCCESS: IP address for %s updated%s\n" "$ok" "$(stamp)" "$record" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
printf "%sFAILED%s\n" "$err" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
printf "%s[%s] ERROR: Unable to update IP address for %s%s\n" "$err" "$(stamp)" "$record" "$norm" >>"$logFile"
|
|
|
|
|
|
|
|
failedDomainCount=$((failedDomainCount + 1))
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
done
|
|
|
|
done
|
|
|
|
|
|
|
|
|
|
|
|
# exit
|
|
|
|
# exit
|
|
|
|
if [ "$invalidDomainCount" -ne 0 ]; then
|
|
|
|
if [ "$invalidDomainCount" -ne 0 ]; then
|
|
|
|
printf "%s[%s] -- WARNING: %s invalid domain(s) were supplied for updating --%s\n" "$warn" "$(stamp)" "$invalidDomainCount" "$norm" >>"$logFile"
|
|
|
|
writeLog warning "${invalidDomainCount} invalid host(s) supplied for updating."
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
if [ "$failedDomainCount" -ne 0 ]; then
|
|
|
|
if [ "$failedHostCount" -ne 0 ]; then
|
|
|
|
exitError 98
|
|
|
|
exitError 26
|
|
|
|
else
|
|
|
|
else
|
|
|
|
exitOK
|
|
|
|
exitOK
|
|
|
|
fi
|
|
|
|
fi
|
|
|
@ -447,11 +541,10 @@ fi
|
|
|
|
# 0: normal exit, no errors
|
|
|
|
# 0: normal exit, no errors
|
|
|
|
# 1: invalid or unknown parameter
|
|
|
|
# 1: invalid or unknown parameter
|
|
|
|
# 2: cannot find or access required external program(s)
|
|
|
|
# 2: cannot find or access required external program(s)
|
|
|
|
|
|
|
|
# 3: curl error (probably connection)
|
|
|
|
# 10: cannot auto-detect IP address
|
|
|
|
# 10: cannot auto-detect IP address
|
|
|
|
# 20: accountFile has a null or missing cfEmail variable
|
|
|
|
|
|
|
|
# 21: accountFile has a null or missing cfKey variable
|
|
|
|
# 21: accountFile has a null or missing cfKey variable
|
|
|
|
# 22: accountFile has a null or missing cfZoneId variable
|
|
|
|
# 22: accountFile has a null or missing cfZoneId variable
|
|
|
|
# 25: unable to query CloudFlare account
|
|
|
|
# 25: Cloudflare API error
|
|
|
|
# 97: script completed with warnings
|
|
|
|
# 26: one or more updates failed
|
|
|
|
# 98: one or more updates failed
|
|
|
|
|
|
|
|
# 99: unspecified error occurred
|
|
|
|
# 99: unspecified error occurred
|
|
|
|