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Jason Koh 2020-11-09 20:54:09 +08:00 committed by GitHub
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cloudflare-template.sh Normal file
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#!/bin/bash
auth_email="" # The email used to login 'https://dash.cloudflare.com'
auth_key="" # Top right corner, "My profile" > "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=true # Set the proxy to true or false
###########################################
## Check if we have an public IP
###########################################
ip=$(curl -s https://api.ipify.org || curl -s https://ipv4.icanhazip.com/)
if [ "${ip}" == "" ]; then
message="No public IP found."
>&2 echo -e "${message}" >> ~/log
exit 1
fi
###########################################
## Seek for the A record
###########################################
echo " Check Initiated" >> ~/log
record=$(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 "X-Auth-Key: $auth_key" -H "Content-Type: application/json")
###########################################
## Check if the domaine has an A record
###########################################
if [[ $record == *"\"count\":0"* ]]; then
message=" Record does not exist, perhaps create one first? (${ip} for ${record_name})"
>&2 echo -e "${message}" >> ~/log
exit 1
fi
###########################################
## Get the existing IP
###########################################
old_ip=$(echo "$record" | grep -Po '(?<="content":")[^"]*' | head -1)
# Compare if they're the same
if [[ $ip == $old_ip ]]; then
message=" IP ($ip) for ${record_name} has not changed."
echo "${message}" >> ~/log
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 "X-Auth-Key: $auth_key" \
-H "Content-Type: application/json" \
--data "{\"id\":\"$zone_identifier\",\"type\":\"A\",\"proxied\":${proxy},\"name\":\"$record_name\",\"content\":\"$ip\"}")
###########################################
## Report the status
###########################################
case "$update" in
*"\"success\":false"*)
message="$ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update"
>&2 echo -e "${message}" >> ~/log
exit 1;;
*)
message="$ip $record_name DDNS updated."
echo "${message}" >> ~/log
exit 0;;
esac