81 lines
3.1 KiB
Bash
81 lines
3.1 KiB
Bash
#!/bin/bash
|
|
|
|
auth_email="" # The email used to login 'https://dash.cloudflare.com'
|
|
auth_method="token" # Set to "global" for Global API Key or "token" for Scoped API Token
|
|
auth_key="" # Your API Token or Global API Key
|
|
zone_identifier="" # Can be found in the "Overview" tab of your domain
|
|
record_name="" # Which record you want to be synced
|
|
proxy=false # Set the proxy to true or false
|
|
|
|
|
|
|
|
###########################################
|
|
## Check if we have a public IP
|
|
###########################################
|
|
ip=$(curl -s https://api.ipify.org || curl -s https://ipv4.icanhazip.com/)
|
|
|
|
if [ "${ip}" == "" ]; then
|
|
logger -s "DDNS Updater: No public IP found"
|
|
exit 1
|
|
fi
|
|
|
|
###########################################
|
|
## Check and set the proper auth header
|
|
###########################################
|
|
if [ "${auth_method}" == "global" ]; then
|
|
auth_header="X-Auth-Key:"
|
|
else
|
|
auth_header="Authorization: Bearer"
|
|
fi
|
|
|
|
###########################################
|
|
## Seek for the A record
|
|
###########################################
|
|
|
|
logger "DDNS Updater: Check Initiated"
|
|
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?name=$record_name" -H "X-Auth-Email: $auth_email" -H "$auth_header $auth_key" -H "Content-Type: application/json")
|
|
|
|
###########################################
|
|
## Check if the domain has an A record
|
|
###########################################
|
|
if [[ $record == *"\"count\":0"* ]]; then
|
|
logger -s "DDNS Updater: Record does not exist, perhaps create one first? (${ip} for ${record_name})"
|
|
exit 1
|
|
fi
|
|
|
|
###########################################
|
|
## Get existing IP
|
|
###########################################
|
|
old_ip=$(echo "$record" | grep -Po '(?<="content":")[^"]*' | head -1)
|
|
# Compare if they're the same
|
|
if [[ $ip == $old_ip ]]; then
|
|
logger "DDNS Updater: IP ($ip) for ${record_name} has not changed."
|
|
exit 0
|
|
fi
|
|
|
|
###########################################
|
|
## Set the record identifier from result
|
|
###########################################
|
|
record_identifier=$(echo "$record" | grep -Po '(?<="id":")[^"]*' | head -1)
|
|
|
|
###########################################
|
|
## Change the IP@Cloudflare using the API
|
|
###########################################
|
|
update=$(curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" \
|
|
-H "X-Auth-Email: $auth_email" \
|
|
-H "$auth_header $auth_key" \
|
|
-H "Content-Type: application/json" \
|
|
--data "{\"id\":\"$zone_identifier\",\"type\":\"A\",\"proxied\":${proxy},\"name\":\"$record_name\",\"content\":\"$ip\"}")
|
|
|
|
###########################################
|
|
## Report the status
|
|
###########################################
|
|
case "$update" in
|
|
*"\"success\":false"*)
|
|
logger -s "DDNS Updater: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update"
|
|
exit 1;;
|
|
*)
|
|
logger "DDNS Updater: $ip $record_name DDNS updated."
|
|
exit 0;;
|
|
esac
|