huanan
/
nn.daxia.dev


			
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							<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>测试工具demo</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/js-sha256/0.9.0/sha256.min.js"></script>
    <script src="http://cdn.bootcss.com/blueimp-md5/1.1.0/js/md5.min.js"></script>  
</head>

<body>
    <input type="button" value="执行" onclick="test()">
</body>
<script>
    var open138 = "742076ecd229edf9afbbc7884ab8fb51d8f122979be5430304a4dac0706c959e"
    var open139 = "5271f20f1089ffcf81a91375d0797bf93eadc72bf23f08ebb337fc856d933fa8"
    var clientHash = "931dde3d0d99db6c71a3bfdd6ece7c70cfb6e2a55814282c973c1875adbd807d"

    function test() {
        const hash = sha256.create()
        hash.update(hexToBytes(open139))
        
        var prevHashStr = toHexString(hash.array())
        if(prevHashStr != open138) {
            console.log("失败")
        }else{
            console.log("成功")
        }
    }

    function testCalnum(){
        //获取牌型
        var cardList = getCardNumList(open139, clientHash, 2)
        console.log(cardList)

        //10,48,28,27,12	5,34,32,25,36	35,31,17,49,18	15,11,33,42,37	16,30,29,2,38
    }

    function toHexString(byteArray) {
        return Array.from(byteArray, function (byte) {
            return ('0' + (byte & 0xFF).toString(16)).slice(-2);
        }).join('')
    }

    function hexToBytes(hex) {
        for (var bytes = [], c = 0; c < hex.length; c += 2)
            bytes.push(parseInt(hex.substr(c, 2), 16));
        return bytes;
    }

    function getCardNumList(hashStr, clientHashStr, roomID) {
        var roomHashItem = getRoomHash(hashStr, roomID)
        hashHex = hexToBytes(roomHashItem).concat(hexToBytes(clientHashStr))

        const hash = sha256.create()
        hash.update(hashHex)

        var hashStr = toHexString(hash.array())

        var cardList = calNum(hashStr)
        var card1 = [cardList[0], cardList[5], cardList[10], cardList[15], cardList[20]]
        var card2 = [cardList[1], cardList[6], cardList[11], cardList[16], cardList[21]]
        var card3 = [cardList[2], cardList[7], cardList[12], cardList[17], cardList[22]]
        var card4 = [cardList[3], cardList[8], cardList[13], cardList[18], cardList[23]]
        var card5 = [cardList[4], cardList[9], cardList[14], cardList[19], cardList[24]]


        return [card1, card2, card3, card4, card5]
    }

    function getRoomHash(hashStr, roomID) {
        var roomHash = md5("room_hash_"+roomID)

        var newHashSignHex = hexToBytes(hashStr).concat(hexToBytes(roomHash))

        const hash = sha256.create()
        hash.update(newHashSignHex)

        return toHexString(hash.array())
    }

    function calNum(hashStr) {
        var hashByte = hexToBytes(hashStr)
        var resultList = []
        var filterMap = {}

        var offset = 0
        for(let i=0; i<25; i++) {
            var item = (hashByte[i] + offset)%52
            if(filterMap[item]) {
                offset++
                i--
                continue
            }

            resultList.push(item)
            filterMap[item] = true
            offset = 0
        }

        return resultList
    }
</script>

</html>