138 lines
4.6 KiB
Bash
138 lines
4.6 KiB
Bash
#!/bin/sh
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# 检查传入参数
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[ -z "$username" ] && write_log 14 "Configuration error! [User name] cannot be empty"
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[ -z "$password" ] && write_log 14 "Configuration error! [Password] cannot be empty"
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# 检查外部调用工具
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[ -n "$CURL_SSL" ] || write_log 13 "Dnspod communication require cURL with SSL support. Please install"
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[ -n "$CURL_PROXY" ] || write_log 13 "cURL: libcurl compiled without Proxy support"
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# 变量声明
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local __URLBASE __HOST __DOMAIN __TYPE __CMDBASE __POST __POST1 __RECIP __RECID __TTL
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__URLBASE="https://dnsapi.cn"
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# 从 $domain 分离主机和域名
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[ "${domain:0:2}" = "@." ] && domain="${domain/./}" # 主域名处理
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[ "$domain" = "${domain/@/}" ] && domain="${domain/./@}" # 未找到分隔符，兼容常用域名格式
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__HOST="${domain%%@*}"
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__DOMAIN="${domain#*@}"
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[ -z "$__HOST" -o "$__HOST" = "$__DOMAIN" ] && __HOST=@
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# 设置记录类型
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[ $use_ipv6 = 0 ] && __TYPE=A || __TYPE=AAAA
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# 构造基本通信命令
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build_command(){
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__CMDBASE="$CURL -Ss"
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# 绑定用于通信的主机/IP
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if [ -n "$bind_network" ];then
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local __DEVICE
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network_get_physdev __DEVICE $bind_network || write_log 13 "Can not detect local device using 'network_get_physdev $bind_network' - Error: '$?'"
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write_log 7 "Force communication via device '$__DEVICE'"
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__CMDBASE="$__CMDBASE --interface $__DEVICE"
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fi
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# 强制设定IP版本
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if [ $force_ipversion = 1 ];then
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[ $use_ipv6 = 0 ] && __CMDBASE="$__CMDBASE -4" || __CMDBASE="$__CMDBASE -6"
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fi
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# 设置CA证书参数
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if [ $use_https = 1 ];then
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if [ "$cacert" = IGNORE ];then
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__CMDBASE="$__CMDBASE --insecure"
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elif [ -f "$cacert" ];then
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__CMDBASE="$__CMDBASE --cacert $cacert"
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elif [ -d "$cacert" ];then
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__CMDBASE="$__CMDBASE --capath $cacert"
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elif [ -n "$cacert" ];then
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write_log 14 "No valid certificate(s) found at '$cacert' for HTTPS communication"
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fi
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fi
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# 如果没有设置，禁用代理 (这可能是 .wgetrc 或环境设置错误)
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[ -z "$proxy" ] && __CMDBASE="$__CMDBASE --noproxy '*'"
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__CMDBASE="$__CMDBASE -d"
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}
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# 用于Dnspod API的通信函数
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dnspod_transfer(){
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__CNT=0
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case "$1" in
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0)__A="$__CMDBASE '$__POST' $__URLBASE/Record.List";;
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1)__A="$__CMDBASE '$__POST1' $__URLBASE/Record.Create";;
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2)__A="$__CMDBASE '$__POST1&record_id=$__RECID&ttl=$__TTL' $__URLBASE/Record.Modify";;
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esac
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write_log 7 "#> $__A"
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while ! __TMP=`eval $__A 2>&1`;do
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write_log 3 "[$__TMP]"
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if [ $VERBOSE -gt 1 ];then
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write_log 4 "Transfer failed - detailed mode: $VERBOSE - Do not try again after an error"
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return 1
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fi
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__CNT=$(( $__CNT + 1 ))
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[ $retry_count -gt 0 -a $__CNT -gt $retry_count ] && write_log 14 "Transfer failed after $retry_count retries"
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write_log 4 "Transfer failed - $__CNT Try again in $RETRY_SECONDS seconds"
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sleep $RETRY_SECONDS &
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PID_SLEEP=$!
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wait $PID_SLEEP
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PID_SLEEP=0
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done
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__ERR=`jsonfilter -s "$__TMP" -e "@.status.code"`
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[ $__ERR = 1 ] && return 0
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[ $__ERR = 10 ] && [ $1 = 0 ] && return 0
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__TMP=`jsonfilter -s "$__TMP" -e "@.status.message"`
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local A="$(date +%H%M%S) ERROR : [$__TMP] - 终止进程"
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logger -p user.err -t ddns-scripts[$$] $SECTION_ID: ${A:15}
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printf "%s\n" " $A" >> $LOGFILE
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exit 1
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}
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# 添加解析记录
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add_domain(){
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dnspod_transfer 1
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printf "%s\n" " $(date +%H%M%S) : 添加解析记录成功: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN],[IP:$__IP]" >> $LOGFILE
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return 0
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}
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# 修改解析记录
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update_domain(){
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dnspod_transfer 2
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printf "%s\n" " $(date +%H%M%S) : 修改解析记录成功: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN],[IP:$__IP],[TTL:$__TTL]" >> $LOGFILE
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return 0
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}
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# 获取域名解析记录
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describe_domain(){
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ret=0
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__POST="login_token=$username,$password&format=json&domain=$__DOMAIN&sub_domain=$__HOST"
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__POST1="$__POST&value=$__IP&record_type=$__TYPE&record_line_id=0"
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dnspod_transfer 0
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__TMP=`jsonfilter -s "$__TMP" -e "@.records[@.type='$__TYPE' && @.line_id='0']"`
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if [ -z "$__TMP" ];then
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printf "%s\n" " $(date +%H%M%S) : 解析记录不存在: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN]" >> $LOGFILE
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ret=1
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else
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__RECIP=`jsonfilter -s "$__TMP" -e "@.value"`
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if [ "$__RECIP" != "$__IP" ];then
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__RECID=`jsonfilter -s "$__TMP" -e "@.id"`
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__TTL=`jsonfilter -s "$__TMP" -e "@.ttl"`
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printf "%s\n" " $(date +%H%M%S) : 解析记录需要更新: [解析记录IP:$__RECIP] [本地IP:$__IP]" >> $LOGFILE
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ret=2
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fi
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fi
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}
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build_command
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describe_domain
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if [ $ret = 1 ];then
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sleep 3
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add_domain
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elif [ $ret = 2 ];then
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sleep 3
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update_domain
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else
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printf "%s\n" " $(date +%H%M%S) : 解析记录不需要更新: [解析记录IP:$__RECIP] [本地IP:$__IP]" >> $LOGFILE
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fi
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return 0
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