群晖使用阿里云DDNS解析ipv4和ipv6

复制，写成sh脚本，添加进群晖定时任务即可。
###ipv4
注意前四个需要自己填入，还有获取ip那里要注意网络接口，我的是ppp0。

#!/bin/sh
ApiId="***************"
ApiKey="***************"
Domain='************'
SubDomain='********'      #这四个自己写
Nonce=$(date -u "+%N")	
Timestamp=$(date -u "+%Y-%m-%dT%H%%3A%M%%3A%SZ")	
Nonce=$Timestamp
urlencode() {
	local raw="$1";
	local len="${#raw}"
	local encoded=""
	for i in `seq 1 $len`; do
		local j=$((i+1))
		local c=$(echo $raw | cut -c$i-$i)

		case $c in [a-zA-Z0-9.~_-]) ;;
			*)
			c=$(printf '%%%02X' "'$c") ;;
		esac

		encoded="$encoded$c"
	done

	echo $encoded
}

# $1 = query string
getSignature() {
	local encodedQuery=$(urlencode $1)
	local message="GET&%2F&$encodedQuery"
	local sig=$(echo -n "$message" | openssl dgst -sha1 -hmac "$ApiKey&" -binary | openssl base64)
	echo $(urlencode $sig)
}

sendRequest() {
	local sig=$(getSignature $1)
	local result=$(wget -qO- --no-check-certificate --content-on-error "https://alidns.aliyuncs.com?$1&Signature=$sig")
	echo $result
}

getRecordId() {
	echo "获取 $SubDomain.$Domain 的 IP..." >&2
	local queryString="AccessKeyId=$ApiId&Action=DescribeSubDomainRecords&Format=JSON&SignatureMethod=HMAC-SHA1&SignatureNonce=$Nonce&SignatureVersion=1.0&SubDomain=$SubDomain.$Domain&Timestamp=$Timestamp&Type=A&Version=2015-01-09"
	local result=$(sendRequest "$queryString")
	local code=$(echo $result | sed 's/.*,"Code":"\([A-z]*\)",.*/\1/')
	local recordId=$(echo $result | sed 's/.*,"RecordId":"\([0-9]*\)",.*/\1/')

	if [ "$code" = "$result" ] && [ ! "$recordId" = "$result" ]; then
		local ip=$(echo $result | sed 's/.*,"Value":"\([0-9\.]*\)",.*/\1/')

		if [ "$ip" == "$NewIP" ]; then
			echo "IP 无变化, 退出脚本..." >&2
			echo "quit"
		else
			echo $recordId
		fi
	else
		echo "null"
	fi
}

# $1 = record ID, $2 = new IP
updateRecord() {
	local queryString="AccessKeyId=$ApiId&Action=UpdateDomainRecord&DomainName=$Domain&Format=JSON&RR=$SubDomain&RecordId=$1&SignatureMethod=HMAC-SHA1&SignatureNonce=$Nonce&SignatureVersion=1.0&Timestamp=$Timestamp&Type=A&Value=$2&Version=2015-01-09"
	local result=$(sendRequest $queryString)
	local code=$(echo $result | sed 's/.*,"Code":"\([A-z]*\)",.*/\1/')

	if [ "$code" = "$result" ]; then
		echo "$SubDomain.$Domain 已指向 $NewIP." >&2
	else
		echo "更新失败." >&2
		echo $result >&2
	fi
}

# $1 = new IP
addRecord() {
	local queryString="AccessKeyId=$ApiId&Action=AddDomainRecord&DomainName=$Domain&Format=JSON&RR=$SubDomain&SignatureMethod=HMAC-SHA1&SignatureNonce=$Nonce&SignatureVersion=1.0&Timestamp=$Timestamp&Type=A&Value=$1&Version=2015-01-09"
	local result=$(sendRequest $queryString)
	local code=$(echo $result | sed 's/.*,"Code":"\([A-z]*\)",.*/\1/')

	if [ "$code" = "$result" ]; then
		echo "$SubDomain.$Domain 已指向 $NewIP." >&2
	else
		echo "添加失败." >&2
		echo $result >&2
	fi
}

# Get new IP address
echo "获取当前 IP..."
NewIP=`ip addr show ppp0 | grep "inet" | awk '{print $2}' | awk -F"/" '{print $1}' `
echo "当前 IP 为 $NewIP."

# Get record ID of sub domain
recordId=$(getRecordId)

if [ ! "$recordId" = "quit" ]; then
	if [ "$recordId" = "null" ]; then
		echo "域名记录不存在, 添加 $SubDomain.$Domain 至 $NewIP..."
		addRecord $NewIP
	else
		echo "域名记录已存在, 更新 $SubDomain.$Domain 至 $NewIP..."
		updateRecord $recordId $NewIP
	fi
fi

###ipv6
同样前四个自己填，和上边的类似。网络接口也同理，可以进群晖ssh，用ip addr自己查接口名称。

#!/bin/sh
aliddnsipv6_ak="**************"
aliddnsipv6_sk="**********************"
aliddnsipv6_name1='****************'
aliddnsipv6_domain='**************'
aliddnsipv6_ttl="600"

if [ "$aliddnsipv6_name1" = "@" ]
then
  aliddnsipv6_name=$aliddnsipv6_domain
else
  aliddnsipv6_name=$aliddnsipv6_name1.$aliddnsipv6_domain
fi

now=`date`

die () {
    echo $1
}

ipv6s=`ip addr show eth0 | grep "inet6.2409" | awk '{print $2}' | awk -F"/" '{print $1}'` || die "$ipv6"

for ipv6 in $ipv6s
do
  #ipv6 = $ipv6
  break
done

echo $ipv6

current_ipv6=`nslookup -query=AAAA $aliddnsipv6_name 2>&1`
#echo $current_ipv6

current_ipv6=`echo "$current_ipv6" | grep 'Address: ' | tail -n1 | awk '{print $NF}'`
echo $current_ipv6

if [ "$?" -eq "0" ]
then
    current_ipv6=`echo "$current_ipv6" | grep 'Address: ' | tail -n1 | awk '{print $NF}'`
    echo $current_ipv6

    if [ "$ipv6" = "$current_ipv6" ]
    then
        echo "skipping"
    fi 
# fix when A record removed by manual dns is always update error
else
    unset aliddnsipv6_record_id
fi


timestamp=`date -u "+%Y-%m-%dT%H%%3A%M%%3A%SZ"`

urlencode() {
    # urlencode <string>
    out=""
    while read -n1 c
    do
        case $c in
            [a-zA-Z0-9._-]) out="$out$c" ;;
            *) out="$out`printf '%%%02X' "'$c"`" ;;
        esac
    done
    echo -n $out
}

enc() {
    echo -n "$1" | urlencode
}

send_request() {
    local args="AccessKeyId=$aliddnsipv6_ak&Action=$1&Format=json&$2&Version=2015-01-09"
    local hash=$(echo -n "GET&%2F&$(enc "$args")" | openssl dgst -sha1 -hmac "$aliddnsipv6_sk&" -binary | openssl base64)
    curl -s "http://alidns.aliyuncs.com/?$args&Signature=$(enc "$hash")"
}

get_recordid() {
    grep -Eo '"RecordId":"[0-9]+"' | cut -d':' -f2 | tr -d '"'
}

query_recordid() {
    send_request "DescribeSubDomainRecords" "SignatureMethod=HMAC-SHA1&SignatureNonce=$timestamp&SignatureVersion=1.0&SubDomain=$aliddnsipv6_name&Timestamp=$timestamp&Type=AAAA"
}

update_record() {
    send_request "UpdateDomainRecord" "RR=$aliddnsipv6_name1&RecordId=$1&SignatureMethod=HMAC-SHA1&SignatureNonce=$timestamp&SignatureVersion=1.0&TTL=$aliddnsipv6_ttl&Timestamp=$timestamp&Type=AAAA&Value=$(enc $ipv6)"
}

add_record() {
    send_request "AddDomainRecord&DomainName=$aliddnsipv6_domain" "RR=$aliddnsipv6_name1&SignatureMethod=HMAC-SHA1&SignatureNonce=$timestamp&SignatureVersion=1.0&TTL=$aliddnsipv6_ttl&Timestamp=$timestamp&Type=AAAA&Value=$(enc $ipv6)"
}

#add support */%2A and @/%40 record


if [ "$aliddnsipv6_record_id" = "" ]
then
    aliddnsipv6_record_id=`query_recordid | get_recordid`
    #echo '-----------------' $aliddnsipv6_record_id
fi
if [ "$aliddnsipv6_record_id" = "" ]
then
    aliddnsipv6_record_id=`add_record | get_recordid`
    echo "added record $aliddnsipv6_record_id"
else
    update_record $aliddnsipv6_record_id
    echo "updated record $aliddnsipv6_record_id"
fi