You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
5.3 KiB
132 lines
5.3 KiB
#!/bin/bash
|
|
## change to "bin/sh" when necessary
|
|
|
|
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
|
|
ttl=3600 # Set the DNS TTL (seconds)
|
|
proxy="false" # Set the proxy to true or false
|
|
sitename="" # Title of site "Example Site"
|
|
slackchannel="" # Slack Channel #example
|
|
slackuri="" # URI for Slack WebHook "https://hooks.slack.com/services/xxxxx"
|
|
discorduri="" # URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx"
|
|
|
|
|
|
###########################################
|
|
## Check if we have a public IP
|
|
###########################################
|
|
REGEX_IPV4="^(0*(1?[0-9]{1,2}|2([0-4][0-9]|5[0-5]))\.){3}0*(1?[0-9]{1,2}|2([0-4][0-9]|5[0-5]))$"
|
|
IP_SERVICES=(
|
|
"https://api.ipify.org"
|
|
"https://ipv4.icanhazip.com"
|
|
"https://ipinfo.io/ip"
|
|
)
|
|
|
|
# Try all the ip services for a valid IPv4 address
|
|
for service in ${IP_SERVICES[@]}; do
|
|
RAW_IP=$(curl -s $service)
|
|
if [[ $RAW_IP =~ $REGEX_IPV4 ]]; then
|
|
CURRENT_IP=$BASH_REMATCH
|
|
logger -s "DDNS Updater: Fetched IP $CURRENT_IP"
|
|
break
|
|
else
|
|
logger -s "DDNS Updater: IP service $service failed."
|
|
fi
|
|
done
|
|
|
|
# Exit if IP fetching failed
|
|
if [[ -z "$CURRENT_IP" ]]; then
|
|
logger -s "DDNS Updater: Failed to find a valid IP."
|
|
exit 2
|
|
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/$zone_identifier/dns_records?type=A&name=$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 [[ $record == *"\"count\":0"* ]]; then
|
|
logger -s "DDNS Updater: Record does not exist, perhaps create one first? (${CURRENT_IP} for ${record_name})"
|
|
exit 1
|
|
fi
|
|
|
|
###########################################
|
|
## Get existing IP
|
|
###########################################
|
|
old_ip=$(echo "$record" | sed -E 's/.*"content":"(([0-9]{1,3}\.){3}[0-9]{1,3})".*/\1/')
|
|
# Compare if they're the same
|
|
if [[ $CURRENT_IP == $old_ip ]]; then
|
|
logger "DDNS Updater: IP ($CURRENT_IP) for ${record_name} has not changed."
|
|
exit 0
|
|
fi
|
|
|
|
###########################################
|
|
## Set the record identifier from result
|
|
###########################################
|
|
record_identifier=$(echo "$record" | sed -E 's/.*"id":"([A-Za-z0-9_]+)".*/\1/')
|
|
|
|
###########################################
|
|
## Change the IP@Cloudflare using the API
|
|
###########################################
|
|
update=$(curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" \
|
|
-H "X-Auth-Email: $auth_email" \
|
|
-H "$auth_header $auth_key" \
|
|
-H "Content-Type: application/json" \
|
|
--data "{\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$CURRENT_IP\",\"ttl\":$ttl,\"proxied\":${proxy}}")
|
|
|
|
###########################################
|
|
## Report the status
|
|
###########################################
|
|
case "$update" in
|
|
*"\"success\":false"*)
|
|
echo -e "DDNS Updater: $CURRENT_IP $record_name DDNS failed for $record_identifier ($CURRENT_IP). DUMPING RESULTS:\n$update" | logger -s
|
|
if [[ $slackuri != "" ]]; then
|
|
curl -L -X POST $slackuri \
|
|
--data-raw '{
|
|
"channel": "'$slackchannel'",
|
|
"text" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$CURRENT_IP')."
|
|
}'
|
|
fi
|
|
if [[ $discorduri != "" ]]; then
|
|
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \
|
|
--data-raw '{
|
|
"content" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$CURRENT_IP')."
|
|
}' $discorduri
|
|
fi
|
|
exit 1;;
|
|
*)
|
|
logger "DDNS Updater: $CURRENT_IP $record_name DDNS updated."
|
|
if [[ $slackuri != "" ]]; then
|
|
curl -L -X POST $slackuri \
|
|
--data-raw '{
|
|
"channel": "'$slackchannel'",
|
|
"text" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$CURRENT_IP'"
|
|
}'
|
|
fi
|
|
if [[ $discorduri != "" ]]; then
|
|
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \
|
|
--data-raw '{
|
|
"content" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$CURRENT_IP'"
|
|
}' $discorduri
|
|
fi
|
|
exit 0;;
|
|
esac
|
|
|