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    Python爬取酷狗MP3音频的步骤

    作者：Revenant- 时间：2021-07-20 18:55

    目录
    • 分析问题
      • 音频url
      • 搜索url
      • JS
    • 代码实现

      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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