cloudflare ddns脚本

之前的网站关了，后台换了halo，清空了全部笔记，这个是之前博客最后的发的一个ddns脚本，更新cloudflare动态域名，目前已经失效

#!/bin/bash

# cloudflare账号信息

auth_email="email@126.com"

auth_key="xxxxxxxxxxxx91fecf2e6xxxxxxxxxxxxxxxxxe" # found in cloudflare account settings

zone_name="domain.com"
record_name="nas.domain.com"

# 可配置参数

ip=$(curl -s http://ipv4.icanhazip.com)
ip_file="ip.txt"
log_file="cloudflare.log"

# 日志记录

log() {
    if [ "$1" ]; then
        echo -e "[$(date)] - $1" >> $log_file
    fi
}

# 开始脚本

log "Check Initiated"

#获取根域名zone_id

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 )

#获取子域名record_id

record_identifier=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?name=$record_name" \

-H "X-Auth-Email: $auth_email" \
-H "X-Auth-Key: $auth_key" \
-H "Content-Type: application/json" \

| grep -Po '(?<="id":")[^"]*')

#如果获取子域名信息为空，创建子域名，并获取子域名record_id
if [[ $record_identifier = "" ]]; then
    #创建子域名

    create=$(curl -s -X POST "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records" \

    -H "X-Auth-Email: $auth_email" \
    -H "X-Auth-Key: $auth_key" \
    -H "Content-Type: application/json" \

    --data "{\"id\":\"$zone_identifier\",\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"proxied\":false}")

    #获取子域名record_id

    record_identifier=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?name=$record_name" \

    -H "X-Auth-Email: $auth_email" \
    -H "X-Auth-Key: $auth_key" \
    -H "Content-Type: application/json" \
    | grep -Po '(?<="id":")[^"]*')
fi

#获取子域名ip

cf_ip=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" \

-H "X-Auth-Email: $auth_email" \
-H "X-Auth-Key: $auth_key" \
-H "Content-Type: application/json" \
|grep -Po '(?<="content":")[^"]*')

#如果子域名ip变化，更改域名记录
if [[ $ip == $cf_ip ]]; then
    echo "IP has not changed."
    exit 0
    else

    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\":\"$zone_identifier\",\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"proxied\":false}")

fi

#记录日志
if [[ $update == *"\"success\":false"* ]]; then
    message="API UPDATE FAILED. DUMPING RESULTS:\n$update"
    log "$message"
    echo -e "$message"
    exit 1
else
    message="IP changed to: $ip"
    echo "$ip" > $ip_file
    log "$message"
    echo "$message"
fi