113 lines
4.2 KiB
Bash
Executable File
113 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# GoDaddy.sh v1.0 by Nazar78 @ TeaNazaR.com
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###########################################
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# Simple DDNS script to update GoDaddy's DNS. Just schedule every 5mins in crontab.
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# With options to run scripts/programs/commands on update failure/success.
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#
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# Requirements:
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# - Bash - On LEDE/OpenWRT, opkg install bash
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# - curl CLI - On Debian, apt-get install curl
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#
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# History:
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# v1.0 - 20160513 - 1st release.
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#
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# PS: Feel free to distribute but kindly retain the credits (-:
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###########################################
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# Begin settings
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# Get the Production API key/secret from https://developer.godaddy.com/keys/.
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# Ensure it's for "Production" as first time it's created for "Test".
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#Key=<API production key>
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#Secret=<API secret>
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Key=A4vTD3PLEX1_G3C4VGGaDiha9BCZZc2ZpP
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Secret=G3C6k2r1kAbKfMHnws3BAs
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# Domain to update.
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Domain=comprofix.com
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# Advanced settings - change only if you know what you're doing :-)
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# Record type, as seen in the DNS setup page, default A.
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Type=A
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# Record name, as seen in the DNS setup page, default @.
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Name=home
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# Time To Live in seconds, minimum default 600 (10mins).
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# If your public IP seldom changes, set it to 3600 (1hr) or more for DNS servers cache performance.
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TTL=600
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# Writable path to last known Public IP record cached. Best to place in tmpfs.
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CachedIP=/tmp/current_ip
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# External URL to check for current Public IP, must contain only a single plain text IP.
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# Default http://api.ipify.org.
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CheckURL=http://api.ipify.org
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# Optional scripts/programs/commands to execute on successful update. Leave blank to disable.
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# This variable will be evaluated at runtime but will not be parsed for errors nor execution guaranteed.
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# Take note of the single quotes. If it's a script, ensure it's executable i.e. chmod 755 ./script.
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# Example: SuccessExec='/bin/echo "$(date): My public IP changed to ${PublicIP}!">>/var/log/GoDaddy.sh.log'
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SuccessExec=''
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# Optional scripts/programs/commands to execute on update failure. Leave blank to disable.
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# This variable will be evaluated at runtime but will not be parsed for errors nor execution guaranteed.
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# Take note of the single quotes. If it's a script, ensure it's executable i.e. chmod 755 ./script.
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# Example: FailedExec='/some/path/something-went-wrong.sh ${Update} && /some/path/email-script.sh ${PublicIP}'
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FailedExec=''
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# End settings
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Curl=$(/usr/bin/which curl 2>/dev/null)
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Touch=$(/usr/bin/which touch 2>/dev/null)
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[ "${Curl}" = "" ] &&
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echo "Error: Unable to find 'curl CLI'." && exit 1
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[ -z "${Key}" ] || [ -z "${Secret}" ] &&
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echo "Error: Requires API 'Key/Secret' value." && exit 1
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[ -z "${Domain}" ] &&
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echo "Error: Requires 'Domain' value." && exit 1
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[ -z "${Type}" ] && Type=A
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[ -z "${Name}" ] && Name=@
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[ -z "${TTL}" ] && TTL=600
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[ "${TTL}" -lt 600 ] && TTL=600
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${Touch} ${CachedIP} 2>/dev/null
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[ $? -ne 0 ] && echo "Error: Can't write to ${CachedIP}." && exit 1
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[ -z "${CheckURL}" ] && CheckURL=http://api.ipify.org
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echo -n "Checking current 'Public IP' from '${CheckURL}'..."
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PublicIP=$(${Curl} -kLs ${CheckURL})
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if [ $? -eq 0 ] && [[ "${PublicIP}" =~ [0-9]{1,3}\.[0-9]{1,3} ]];then
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echo "${PublicIP}!"
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else
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echo "Fail! ${PublicIP}"
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eval ${FailedExec}
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exit 1
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fi
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if [ "$(cat ${CachedIP} 2>/dev/null)" != "${PublicIP}" ];then
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echo -n "Checking '${Domain}' IP records from 'GoDaddy'..."
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Check=$(${Curl} -kLsH"Authorization: sso-key ${Key}:${Secret}" \
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-H"Content-type: application/json" \
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https://api.godaddy.com/v1/domains/${Domain}/records/${Type}/${Name} \
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2>/dev/null|jq -r '.[0].data'>/dev/null)
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if [ $? -eq 0 ] && [ "${Check}" = "${PublicIP}" ];then
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echo -n ${Check}>${CachedIP}
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echo -e "unchanged!\nCurrent 'Public IP' matches 'GoDaddy' records. No update required!"
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else
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echo -en "changed!\nUpdating '${Domain}'..."
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Update=$(${Curl} -kLsXPUT -H"Authorization: sso-key ${Key}:${Secret}" \
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-H"Content-type: application/json" \
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https://api.godaddy.com/v1/domains/${Domain}/records/${Type}/${Name} \
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-d "[{\"data\":\"${PublicIP}\",\"ttl\":${TTL}}]" 2>/dev/null)
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if [ $? -eq 0 ] && [ "${Update}" = "" ];then
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echo -n ${PublicIP}>${CachedIP}
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echo "Success!"
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eval ${SuccessExec}
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else
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echo "Fail! ${Update}"
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eval ${FailedExec}
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exit 1
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fi
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fi
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else
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echo "Current 'Public IP' matches 'Cached IP' recorded. No update required!"
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fi
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exit $?
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