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| #!/bin/bash
############## User Configuration ###############
# Define programme path
# location_path="/config/scripts/ddns"
location_path=$(dirname -- "$0")
# You Registered CloudFlare Mail Account
auth_email=""
# CloudFlare Global API Key
auth_key=""
# Root Doman Name
zone_name=""
# IP Type，Enter 'ipv4' or 'ipv6' ,at here we got paramter from our input
type=$1
# DDNS Domain Name
record_name=$2
# WAN INTERFACE
INTERFACE=""
############# Script ############
# The before WAN IP
ip_file="$location_path/$1_$2_ip.txt"
# Domain id information
# Domain id information
id_file="$location_path/$1_$2_cloudflare.ids"
# Log location
log_file="$location_path/cloudflare.log"
################ Don't change here ###############
################## Function ####################
record_type=""
ip=""
zone_identifier=""
record_identifier=""
update=""
# Log function
log() {
if [ "$1" ]; then
echo -e "[$(date)] - $1" >> $log_file
fi
}
#To get local IP address
get_ip() {
if [ $type == "ipv4" ]; then
record_type="A"
ip=$(ip addr | grep ${INTERFACE} -A2 | grep inet | grep -v inet6 | awk '{print $2}')
elif [ $type == "ipv6" ]; then
record_type="AAAA"
ip=$(ip addr | grep ${INTERFACE} -A2 | grep inet6 | awk '{print $2}' | cut -d '/' -f1)
else
echo "Type wrong"
log "Type wrong"
exit 0
fi
}
# Check IP changed or not, if there's no change, then terminal programme
check_ip_change() {
if [ -f $ip_file ]; then
old_ip=$(cat $ip_file)
if [ "$ip" == "$old_ip" ]; then
echo "IP has not changed."
log "IP has not changed."
exit 0
fi
fi
}
#Get zone_id subdomain ID
get_id() {
if [ -f $id_file ] && [ $(wc -l $id_file | cut -d " " -f 1) == 2 ]; then
zone_identifier=$(head -1 $id_file)
record_identifier=$(tail -1 $id_file)
else
zone_identifier=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones?name=$zone_name" -H "X-Auth-Email: $auth_email" -H "X-Auth-Key: $auth_key" -H "Content-Type: application/json" | grep -Po '(?<="id":")[^"]*' | head -1 )
rec_response_json=`curl -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?name=$record_name" -H "X-Auth-Email: $auth_email" -H "X-Auth-Key: $auth_key" -H "Content-Type: application/json"`
record_identifier=`echo $rec_response_json | grep -Po '(?<="id":")[^"]*'`
echo "$zone_identifier" > $id_file
echo "$record_identifier" >> $id_file
fi
}
#Update DNS record
update_dns() {
update=$(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\":\"$record_type\",\"name\":\"$record_name\",\"content\":\"$ip\"}")
}
################### Main ###################
log "Script start."
#Got IP Address
get_ip
# Check got the right ip address
if [ "$ip" == "" ]; then
echo "Can not get IP address.Please check your network connection."
log "Can not get IP address.Please check your network connection."
exit 0
fi
# Check IP changed or not
check_ip_change
# Get zone_id and sumdomain record ID
get_id
# Check get ID successfully or not
if [ "$zone_identifier" == "" ]; then
echo "Can not get zone_id."
log "Can not get zone_id."
exit 0
elif [ "$record_identifier" == "" ]; then
echo "Can not get record_id."
log "Can not get record_id."
exit 0
fi
# Update DNS Record
update_dns
# Check DNS record updated or not
if [[ $update == *"\"success\":false"* ]]; then
log "API UPDATE FAILED. DUMPING RESULTS:\n$update"
echo -e "API UPDATE FAILED. DUMPING RESULTS:\n$update"
exit 0
else
echo "$ip" > $ip_file
log "$record_name IP changed to: $ip"
echo "$record_name IP changed to: $ip"
fi
|
