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Python爬取酷狗MP3音频

分类：Python作者：编程之家AI导航网

分析问题

音频url

点入某个音乐的播放界面，通过F12-Network，分析数据，可以看到有一个index.PHP?..返回数据中有一个play_url，打开后正是我们需要的音频。

查看该url的headers，其params参数如下，通过反复不同的几次尝试，得知r、callback、dfid、mid、platid这几项不变，而通过初步的requests尝试，发现最后一项'_'可有可无，改变的只有hash和album_id两项。

r: play/getdata
callback: jQuery1910861615852090795_1612578519454
hash: EF0DA656831F08B1FD2CB855BC38ED2C
dfid: 0Q0Clh1IcZaG3ey1J70RaTiL
mid: b6cf66837b18642cc269390b066649dc
platid: 4
album_id: 41669581
_: 1612578519455

搜索url

得知改变的只有两项后，那就容易多了，在搜索歌曲界面Network，发现song?...该url返回值中有hash和album_id存在，我们之后只用搜索结果第一项（一般要搜的歌曲排名第一）。

同样分析其params参数，改变的只有keyword、signature、clienttime、mid、uuid。后三者可以比较容易看出其为毫秒级时间戳（13位），keyword也挺容易明白，signature哪里找呢？通过全局搜索signature，发现有一个js文件中含有该关键词。

callback: callback123
keyword: 花海
page: 1
pagesize: 30
bitrate: 0
isfuzzy: 0
tag: em
inputtype: 0
platform: WebFilter
userid: -1
clientver: 2000
iscorrection: 1
privilege_filter: 0
srcappid: 2919
clienttime: 1612579100435
mid: 1612579100435
uuid: 1612579100435
dfid: -
signature: 472F60133C23184CAFC5005350C90229

JS

找到的js代码如下

"undefined" == typeof faultylabs && (faultylabs = {}),
faultylabs.MD5 = function(a) {
    function b(a) {
        var b = (a >>> 0).toString(16);
        return "00000000".substr(0, 8 - b.length) + b
    }
    function c(a) {
        for (var b = [], c = 0; c < a.length; c++)
            b = b.concat(k(a[c]));
        return b
    }
    function d(a) {
        for (var b = [], c = 0; 8 > c; c++)
            b.push(255 & a),
            a >>>= 8;
        return b
    }
    function e(a, b) {
        return a << b & 4294967295 | a >>> 32 - b
    }
    function f(a, b, c) {
        return a & b | ~a & c
    }
    function g(a, b, c) {
        return c & a | ~c & b
    }
    function h(a, b, c) {
        return a ^ b ^ c
    }
    function i(a, b, c) {
        return b ^ (a | ~c)
    }
    function j(a, b) {
        return a[b + 3] << 24 | a[b + 2] << 16 | a[b + 1] << 8 | a[b]
    }
    function k(a) {
        for (var b = [], c = 0; c < a.length; c++)
            if (a.charCodeAt(c) <= 127)
                b.push(a.charCodeAt(c));
            else
                for (var d = encodeURIComponent(a.charat(c)).substr(1).split("%"), e = 0; e < d.length; e++)
                    b.push(parseInt(d[e], 16));
        return b
    }
    function l() {
        for (var a = "", c = 0, d = 0, e = 3; e >= 0; e--)
            d = arguments[e],
            c = 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= d,
            a += b(c);
        return a
    }
    function m(a) {
        for (var b = new Array(a.length), c = 0; c < a.length; c++)
            b[c] = a[c];
        return b
    }
    function n(a, b) {
        return 4294967295 & a + b
    }
    function o() {
        function a(a, b, c, d) {
            var f = v;
            v = u,
            u = t,
            t = n(t, e(n(s, n(a, n(b, c))), d)),
            s = f
        }
        var b = p.length;
        p.push(128);
        var c = p.length % 64;
        if (c > 56) {
            for (var k = 0; 64 - c > k; k++)
                p.push(0);
            c = p.length % 64
        }
        for (k = 0; 56 - c > k; k++)
            p.push(0);
        p = p.concat(d(8 * b));
        var m = 1732584193
          , o = 4023233417
          , q = 2562383102
          , r = 271733878
          , s = 0
          , t = 0
          , u = 0
          , v = 0;
        for (k = 0; k < p.length / 64; k++) {
            s = m,
            t = o,
            u = q,
            v = r;
            var w = 64 * k;
            a(f(t, u, v), 3614090360, j(p, w), 7),
            a(f(t, u, v), 3905402710, j(p, w + 4), 12),
            a(f(t, u, v), 606105819, j(p, w + 8), 17),
            a(f(t, u, v), 3250441966, j(p, w + 12), 22),
            a(f(t, u, v), 4118548399, j(p, w + 16), 7),
            a(f(t, u, v), 1200080426, j(p, w + 20), 12),
            a(f(t, u, v), 2821735955, j(p, w + 24), 17),
            a(f(t, u, v), 4249261313, j(p, w + 28), 22),
            a(f(t, u, v), 1770035416, j(p, w + 32), 7),
            a(f(t, u, v), 2336552879, j(p, w + 36), 12),
            a(f(t, u, v), 4294925233, j(p, w + 40), 17),
            a(f(t, u, v), 2304563134, j(p, w + 44), 22),
            a(f(t, u, v), 1804603682, j(p, w + 48), 7),
            a(f(t, u, v), 4254626195, j(p, w + 52), 12),
            a(f(t, u, v), 2792965006, j(p, w + 56), 17),
            a(f(t, u, v), 1236535329, j(p, w + 60), 22),
            a(g(t, u, v), 4129170786, j(p, w + 4), 5),
            a(g(t, u, v), 3225465664, j(p, w + 24), 9),
            a(g(t, u, v), 643717713, j(p, w + 44), 14),
            a(g(t, u, v), 3921069994, j(p, w), 20),
            a(g(t, u, v), 3593408605, j(p, w + 20), 5),
            a(g(t, u, v), 38016083, j(p, w + 40), 9),
            a(g(t, u, v), 3634488961, j(p, w + 60), 14),
            a(g(t, u, v), 3889429448, j(p, w + 16), 20),
            a(g(t, u, v), 568446438, j(p, w + 36), 5),
            a(g(t, u, v), 3275163606, j(p, w + 56), 9),
            a(g(t, u, v), 4107603335, j(p, w + 12), 14),
            a(g(t, u, v), 1163531501, j(p, w + 32), 20),
            a(g(t, u, v), 2850285829, j(p, w + 52), 5),
            a(g(t, u, v), 4243563512, j(p, w + 8), 9),
            a(g(t, u, v), 1735328473, j(p, w + 28), 14),
            a(g(t, u, v), 2368359562, j(p, w + 48), 20),
            a(h(t, u, v), 4294588738, j(p, w + 20), 4),
            a(h(t, u, v), 2272392833, j(p, w + 32), 11),
            a(h(t, u, v), 1839030562, j(p, w + 44), 16),
            a(h(t, u, v), 4259657740, j(p, w + 56), 23),
            a(h(t, u, v), 2763975236, j(p, w + 4), 4),
            a(h(t, u, v), 1272893353, j(p, w + 16), 11),
            a(h(t, u, v), 4139469664, j(p, w + 28), 16),
            a(h(t, u, v), 3200236656, j(p, w + 40), 23),
            a(h(t, u, v), 681279174, j(p, w + 52), 4),
            a(h(t, u, v), 3936430074, j(p, w), 11),
            a(h(t, u, v), 3572445317, j(p, w + 12), 16),
            a(h(t, u, v), 76029189, j(p, w + 24), 23),
            a(h(t, u, v), 3654602809, j(p, w + 36), 4),
            a(h(t, u, v), 3873151461, j(p, w + 48), 11),
            a(h(t, u, v), 530742520, j(p, w + 60), 16),
            a(h(t, u, v), 3299628645, j(p, w + 8), 23),
            a(i(t, u, v), 4096336452, j(p, w), 6),
            a(i(t, u, v), 1126891415, j(p, w + 28), 10),
            a(i(t, u, v), 2878612391, j(p, w + 56), 15),
            a(i(t, u, v), 4237533241, j(p, w + 20), 21),
            a(i(t, u, v), 1700485571, j(p, w + 48), 6),
            a(i(t, u, v), 2399980690, j(p, w + 12), 10),
            a(i(t, u, v), 4293915773, j(p, w + 40), 15),
            a(i(t, u, v), 2240044497, j(p, w + 4), 21),
            a(i(t, u, v), 1873313359, j(p, w + 32), 6),
            a(i(t, u, v), 4264355552, j(p, w + 60), 10),
            a(i(t, u, v), 2734768916, j(p, w + 24), 15),
            a(i(t, u, v), 1309151649, j(p, w + 52), 21),
            a(i(t, u, v), 4149444226, j(p, w + 16), 6),
            a(i(t, u, v), 3174756917, j(p, w + 44), 10),
            a(i(t, u, v), 718787259, j(p, w + 8), 15),
            a(i(t, u, v), 3951481745, j(p, w + 36), 21),
            m = n(m, s),
            o = n(o, t),
            q = n(q, u),
            r = n(r, v)
        }
        return l(r, q, o, m).toupperCase()
    }
    var p = null
      , q = null;
    return "string" == typeof a ? p = k(a) : a.constructor == Array ? 0 === a.length ? p = a : "string" == typeof a[0] ? p = c(a) : "number" == typeof a[0] ? p = a : q = typeof a[0] : "undefined" != typeof ArrayBuffer ? a instanceof ArrayBuffer ? p = m(new Uint8Array(a)) : a instanceof Uint8Array || a instanceof Int8Array ? p = m(a) : a instanceof Uint32Array || a instanceof Int32Array || a instanceof Uint16Array || a instanceof Int16Array || a instanceof Float32Array || a instanceof Float64Array ? p = m(new Uint8Array(a.buffer)) : q = typeof a : q = typeof a,
    q && alert("MD5 type mismatch, cannot process " + q),
    o()
}
,
function() {
    function a(a) {
        if (window.KgMobileCall)
            a && a();
        else {
            var b = document.createElement("script");
            b.src = "https://m3ws.kugou.com/static/js/common/mobilecall_3.0.js",
            b.onload = function() {
                this.readyState && "loaded" != this.readyState && "complete" != this.readyState || a && a()
            }
            ,
            document.body.appendChild(b)
        }
    }
    function b(b, c, d) {
        b = b || {},
        c = c || "",
        d = d || {};
        var e, f = !1, g = "json";
        "function" == typeof d ? e = d : (e = d.callback,
        f = d.useH5 || !1,
        g = d.postType || "json");
        var h = {};
        for (var i in b)
            !h[i] && (h[i] = b[i]);
        var j = function() {
            var a = navigator.userAgent.match(/KGbrowser/gi) ? !0 : !1
              , b = navigator.userAgent.match(/kugouandroid/gi) ? !0 : !1
              , c = "undefined" == typeof external ? !1 : "undefined" == typeof external.superCall ? !1 : !0;
            return c || b || a ? !0 : !1
        }()
          , k = (new Date).getTime()
          , l = []
          , m = {}
          , n = []
          , o = []
          , p = "NVPh5oo715z5DIWAeQlhmdsWXXQV4hwt"
          , q = {
            appid: function(a) {
                return a()
            },
            srcappid: function(a) {
                return a("2919")
            },
            clientver: function(a) {
                return a("20000")
            },
            "clienttime,mid,uuid,dfid": function(a) {
                return a({
                    clienttime: k,
                    mid: k,
                    uuid: k,
                    dfid: "-"
                })
            }
        }
          , r = function() {
            for (var a in q)
                l.push(a);
            !function(a) {
                function b(a) {
                    if (a < l.length)
                        q[l[a]](function(c) {
                            if (c)
                                if ("[object Object]" == Object.prototype.toString.call(c))
                                    for (var d in c)
                                        m[d] = c[d];
                                else
                                    m[l[a]] = c;
                            b(a + 1)
                        });
                    else {
                        for (var d in m)
                            !h[d] && (h[d] = m[d]);
                        for (var d in h)
                            n.push(d);
                        if (n.sort(),
                        n.forEach(function(a) {
                            o.push(a + "=" + h[a])
                        }),
                        c)
                            if ("[object Object]" == Object.prototype.toString.call(c))
                                if ("json" == g)
                                    o.push(JSON.stringify(c));
                                else {
                                    var f = [];
                                    for (var d in c)
                                        f.push(d + "=" + c[d]);
                                    o.push(f.join("&"))
                                }
                            else
                                o.push(c);
                        o.unshift(p),
                        o.push(p),
                        h.signature = faultylabs.MD5(o.join("")),
                        e && e(h)
                    }
                }
                b(a)
            }(0)
        };
        if (c && ("[object Object]" != Object.prototype.toString.call(c) ? j = !1 : "urlencoded" == g && (j = !1)),
        j && !f) {
            var s = !1;
            a(function() {
                KgMobileCall.callCmd({
                    cmd: 764,
                    jsonStr: JSON.stringify({
                        get: h,
                        post: c
                    }),
                    callback: function(a) {
                        if (s)
                            return !1;
                        if (s = !0,
                        a && a.status) {
                            delete a.status;
                            for (var b in a)
                                !h[b] && (h[b] = a[b]);
                            return e && e(h)
                        }
                        j = !1,
                        r()
                    }
                })
            })
        } else
            j = !1,
            r()
    }
    "undefined" != typeof module && module.exports ? module.exports = b : "function" == typeof define && define.amd ? define(function() {
        return b
    }) : window.getInterFacePublic = b
}();

在274行发现h.signature = faultylabs.MD5(o.join("")),初步理解为signature是o内部元素拼接成字符串，对其加上断点并将o加入watch。

0: "NVPh5oo715z5DIWAeQlhmdsWXXQV4hwt"
1: "bitrate=0"
2: "callback=callback123"
3: "clienttime=1612580098162"
4: "clientver=2000"
5: "dfid=-"
6: "inputtype=0"
7: "iscorrection=1"
8: "isfuzzy=0"
9: "keyword=花海"
10: "mid=1612580098162"
11: "page=1"
12: "pagesize=30"
13: "platform=WebFilter"
14: "privilege_filter=0"
15: "srcappid=2919"
16: "tag=em"
17: "userid=-1"
18: "uuid=1612580098162"
19: "NVPh5oo715z5DIWAeQlhmdsWXXQV4hwt"
length: 20

在watch里不难发现o为一个长度为20的数组，之后我们按之前理解将字符串拼接。

NVPh5oo715z5DIWAeQlhmdsWXXQV4hwtbitrate=0callback=callback123clienttime=1612580098162clientver=2000dfid=-inputtype=0iscorrection=1isfuzzy=0keyword=花海mid=1612580098162page=1pagesize=30platform=WebFilterprivilege_filter=0srcappid=2919tag=emuserid=-1uuid=1612580098162NVPh5oo715z5DIWAeQlhmdsWXXQV4hwt

之后要js解密，这谁会？反正我不会 0.0，那也有办法，用python调用js文件。在274行分析为md5加密，往前找看看有没有相关函数，果真有一个，将其保存为kugou.js

"undefined" == typeof faultylabs && (faultylabs = {}),
faultylabs.MD5 = function(a) {
    function b(a) {
        var b = (a >>> 0).toString(16);
        return "00000000".substr(0, 8 - b.length) + b
    }
    function c(a) {
        for (var b = [], c = 0; c < a.length; c++)
            b = b.concat(k(a[c]));
        return b
    }
    function d(a) {
        for (var b = [], c = 0; 8 > c; c++)
            b.push(255 & a),
            a >>>= 8;
        return b
    }
    function e(a, b) {
        return a << b & 4294967295 | a >>> 32 - b
    }
    function f(a, b, c) {
        return a & b | ~a & c
    }
    function g(a, b, c) {
        return c & a | ~c & b
    }
    function h(a, b, c) {
        return a ^ b ^ c
    }
    function i(a, b, c) {
        return b ^ (a | ~c)
    }
    function j(a, b) {
        return a[b + 3] << 24 | a[b + 2] << 16 | a[b + 1] << 8 | a[b]
    }
    function k(a) {
        for (var b = [], c = 0; c < a.length; c++)
            if (a.charCodeAt(c) <= 127)
                b.push(a.charCodeAt(c));
            else
                for (var d = encodeURIComponent(a.charat(c)).substr(1).split("%"), e = 0; e < d.length; e++)
                    b.push(parseInt(d[e], 16));
        return b
    }
    function l() {
        for (var a = "", c = 0, d = 0, e = 3; e >= 0; e--)
            d = arguments[e],
            c = 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= 255 & d,
            d >>>= 8,
            c <<= 8,
            c |= d,
            a += b(c);
        return a
    }
    function m(a) {
        for (var b = new Array(a.length), c = 0; c < a.length; c++)
            b[c] = a[c];
        return b
    }
    function n(a, b) {
        return 4294967295 & a + b
    }
    function o() {
        function a(a, b, c, d) {
            var f = v;
            v = u,
            u = t,
            t = n(t, e(n(s, n(a, n(b, c))), d)),
            s = f
        }
        var b = p.length;
        p.push(128);
        var c = p.length % 64;
        if (c > 56) {
            for (var k = 0; 64 - c > k; k++)
                p.push(0);
            c = p.length % 64
        }
        for (k = 0; 56 - c > k; k++)
            p.push(0);
        p = p.concat(d(8 * b));
        var m = 1732584193
          , o = 4023233417
          , q = 2562383102
          , r = 271733878
          , s = 0
          , t = 0
          , u = 0
          , v = 0;
        for (k = 0; k < p.length / 64; k++) {
            s = m,
            t = o,
            u = q,
            v = r;
            var w = 64 * k;
            a(f(t, u, v), 3614090360, j(p, w), 7),
            a(f(t, u, v), 3905402710, j(p, w + 4), 12),
            a(f(t, u, v), 606105819, j(p, w + 8), 17),
            a(f(t, u, v), 3250441966, j(p, w + 12), 22),
            a(f(t, u, v), 4118548399, j(p, w + 16), 7),
            a(f(t, u, v), 1200080426, j(p, w + 20), 12),
            a(f(t, u, v), 2821735955, j(p, w + 24), 17),
            a(f(t, u, v), 4249261313, j(p, w + 28), 22),
            a(f(t, u, v), 1770035416, j(p, w + 32), 7),
            a(f(t, u, v), 2336552879, j(p, w + 36), 12),
            a(f(t, u, v), 4294925233, j(p, w + 40), 17),
            a(f(t, u, v), 2304563134, j(p, w + 44), 22),
            a(f(t, u, v), 1804603682, j(p, w + 48), 7),
            a(f(t, u, v), 4254626195, j(p, w + 52), 12),
            a(f(t, u, v), 2792965006, j(p, w + 56), 17),
            a(f(t, u, v), 1236535329, j(p, w + 60), 22),
            a(g(t, u, v), 4129170786, j(p, w + 4), 5),
            a(g(t, u, v), 3225465664, j(p, w + 24), 9),
            a(g(t, u, v), 643717713, j(p, w + 44), 14),
            a(g(t, u, v), 3921069994, j(p, w), 20),
            a(g(t, u, v), 3593408605, j(p, w + 20), 5),
            a(g(t, u, v), 38016083, j(p, w + 40), 9),
            a(g(t, u, v), 3634488961, j(p, w + 60), 14),
            a(g(t, u, v), 3889429448, j(p, w + 16), 20),
            a(g(t, u, v), 568446438, j(p, w + 36), 5),
            a(g(t, u, v), 3275163606, j(p, w + 56), 9),
            a(g(t, u, v), 4107603335, j(p, w + 12), 14),
            a(g(t, u, v), 1163531501, j(p, w + 32), 20),
            a(g(t, u, v), 2850285829, j(p, w + 52), 5),
            a(g(t, u, v), 4243563512, j(p, w + 8), 9),
            a(g(t, u, v), 1735328473, j(p, w + 28), 14),
            a(g(t, u, v), 2368359562, j(p, w + 48), 20),
            a(h(t, u, v), 4294588738, j(p, w + 20), 4),
            a(h(t, u, v), 2272392833, j(p, w + 32), 11),
            a(h(t, u, v), 1839030562, j(p, w + 44), 16),
            a(h(t, u, v), 4259657740, j(p, w + 56), 23),
            a(h(t, u, v), 2763975236, j(p, w + 4), 4),
            a(h(t, u, v), 1272893353, j(p, w + 16), 11),
            a(h(t, u, v), 4139469664, j(p, w + 28), 16),
            a(h(t, u, v), 3200236656, j(p, w + 40), 23),
            a(h(t, u, v), 681279174, j(p, w + 52), 4),
            a(h(t, u, v), 3936430074, j(p, w), 11),
            a(h(t, u, v), 3572445317, j(p, w + 12), 16),
            a(h(t, u, v), 76029189, j(p, w + 24), 23),
            a(h(t, u, v), 3654602809, j(p, w + 36), 4),
            a(h(t, u, v), 3873151461, j(p, w + 48), 11),
            a(h(t, u, v), 530742520, j(p, w + 60), 16),
            a(h(t, u, v), 3299628645, j(p, w + 8), 23),
            a(i(t, u, v), 4096336452, j(p, w), 6),
            a(i(t, u, v), 1126891415, j(p, w + 28), 10),
            a(i(t, u, v), 2878612391, j(p, w + 56), 15),
            a(i(t, u, v), 4237533241, j(p, w + 20), 21),
            a(i(t, u, v), 1700485571, j(p, w + 48), 6),
            a(i(t, u, v), 2399980690, j(p, w + 12), 10),
            a(i(t, u, v), 4293915773, j(p, w + 40), 15),
            a(i(t, u, v), 2240044497, j(p, w + 4), 21),
            a(i(t, u, v), 1873313359, j(p, w + 32), 6),
            a(i(t, u, v), 4264355552, j(p, w + 60), 10),
            a(i(t, u, v), 2734768916, j(p, w + 24), 15),
            a(i(t, u, v), 1309151649, j(p, w + 52), 21),
            a(i(t, u, v), 4149444226, j(p, w + 16), 6),
            a(i(t, u, v), 3174756917, j(p, w + 44), 10),
            a(i(t, u, v), 718787259, j(p, w + 8), 15),
            a(i(t, u, v), 3951481745, j(p, w + 36), 21),
            m = n(m, s),
            o = n(o, t),
            q = n(q, u),
            r = n(r, v)
        }
        return l(r, q, o, m).toupperCase()
    }
    var p = null
      , q = null;
    return "string" == typeof a ? p = k(a) : a.constructor == Array ? 0 === a.length ? p = a : "string" == typeof a[0] ? p = c(a) : "number" == typeof a[0] ? p = a : q = typeof a[0] : "undefined" != typeof ArrayBuffer ? a instanceof ArrayBuffer ? p = m(new Uint8Array(a)) : a instanceof Uint8Array || a instanceof Int8Array ? p = m(a) : a instanceof Uint32Array || a instanceof Int32Array || a instanceof Uint16Array || a instanceof Int16Array || a instanceof Float32Array || a instanceof Float64Array ? p = m(new Uint8Array(a.buffer)) : q = typeof a : q = typeof a,
    q && alert("MD5 type mismatch, cannot process " + q),
    o()
}

之后用python的pyexecjs库调用， 但是注意调用的时候的名字是execjs。

​

代码实现

"""
data: 2021/02/05

通过搜索爬取酷狗音乐，付费音乐暂时只能爬取试听部分。
"""

import requests
import re
import json
import time
import execjs


def get_signature(text):
    """
    获取signature值
    :param text: 格式化之后的字符串
    :return: 返回酷狗网站上加密后的signature
    """
    # 读取js文件内容
    with open("kugou.js", "r", encoding='utf-8') as f:
        js_str = f.read()

    # 通过js文件中逻辑数据，对文件进行加密
    if js_str:
        js_obj = execjs.compile(js_str)
        return js_obj.call('faultylabs.MD5', text)


def get_url(keyword):
    """
    获取搜索之后的url
    :param keyword: 搜索词，如晴天
    :return: 返回完整的URL地址
    """
    search = "https://complexsearch.kugou.com/v2/search/song?callback=callback123&keyword={keyword}&page=1&pagesize=30&bitrate=0&isfuzzy=0&tag=em&inputtype=0&platform=WebFilter&userid=-1&clientver=2000&iscorrection=1&privilege_filter=0&srcappid=2919&clienttime={time}&mid={time}&uuid={time}&dfid=-&signature={signature}"
    key_code = "NVPh5oo715z5DIWAeQlhmdsWXXQV4hwtbitrate=0callback=callback123clienttime={time}clientver=2000dfid=-inputtype=0iscorrection=1isfuzzy=0keyword={keyword}mid={time}page=1pagesize=30platform=WebFilterprivilege_filter=0srcappid=2919tag=emuserid=-1uuid={time}NVPh5oo715z5DIWAeQlhmdsWXXQV4hwt"

    # 获得13位时间戳
    millis = str(round(time.time() * 1000))
    p = key_code.format(time=millis, keyword=keyword)
    signature = get_signature(p)
    # print(signature)

    search_url = search.format(keyword=keyword, time=millis, signature=signature)
    return search_url


def get_data(url):
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.146 Safari/537.36',
        'referer': 'https://www.kugou.com/',
        'authority': 'complexsearch.kugou.com',
    }

    res = requests.get(url=url, headers=headers)

    # 将获取的数据转为json格式
    data = re.findall('callback123\((.*)\)', res.text, re.S)[0]
    json_data = json.loads(data)['data']

    hash_value = json_data['lists'][0]['filehash'].lower()
    album_id = json_data['lists'][0]['AlbumID']
    return hash_value, album_id


def get_mp3(hash_value, album_id):
    """
    获取MP3音频文件
    :param hash_value: 传入哈希值
    :param album_id:  传入album id
    :return: none
    """
    url = 'https://wwwapi.kugou.com/yy/index.PHP'

    params = {
        'r': 'play/getdata',
        'callback': 'jQuery191019800824574510756_1612519333214',
        'hash': str(hash_value),
        'dfid': '0Q0Clh1IcZaG3ey1J70RaTiL',
        'mid': 'b6cf66837b18642cc269390b066649dc',
        'platid': '4',
        'album_id': str(album_id),
    }

    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.146 Safari/537.36',
        'referer': 'https://www.kugou.com/',
        'authority': 'wwwapi.kugou.com',
    }
    res = requests.post(url=url, params=params, headers=headers)

    data = re.findall('jQuery191019800824574510756_1612519333214\((.*?)\);', res.text, re.S)[0]
    json_data = json.loads(data)

    audio_name = json_data['data']['audio_name']
    play_url = json_data['data']['play_url']

    save_mp3(audio_name, play_url)


def save_mp3(audio_name, play_url):
    """
    保持MP3文件
    :param audio_name: 传入命名
    :param play_url: 传入音频url
    :return: none
    """
    content = requests.get(play_url).content
    with open(audio_name + '.mp3', mode='ab') as f:
        f.write(content)


if __name__ == '__main__':
    try:
        keyword = input('请输入要搜索的歌曲名称：')
        hash_value, album_id = get_data(get_url(keyword))

        get_mp3(hash_value, album_id)
    except Exception as e:
        print('请输入正确歌曲名称。')

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