python最新QQ音乐sign参数加密分析

 
1. 前言

最近正在学习python爬虫，刚好拿QQ音乐练手。想要看懂文章前建议学习js逆向知识，其中断点和webpack包知识是基本

2. 接口抓包

通过接口分析发现，请求接口中都带有加密参数sign值
  

接着全局搜索sign值，发现只有vendor.chunk.ef9ae512d819f8adc326.js才有sign参数调用

通过搜索和上下文分析找到获取sign值的位置

断点查看，i值出来的sign值正好匹配上。

从断点看出执行o(t.data)，而o = n(350).default是webpack的调用形式，n是加载器（这里就涉及到webpack知识）

3. 整理webpack包代码

为了方便，也不用做去掉无用代码，直接拿来require使用，新建ventor.js把vendor.chunk.ef9ae512d819f8adc326.js内容放进去，新建main.js把加载器复制进去，然后require，接着通过前面的断点，获取到的t.data，执行

// 补环境

var main
require('./ventor')
!function(e) {
    function t(t) {
        for (var r, n, d = t[0], f = t[1], i = t[2], l = 0, b = []; l < d.length; l++)
            n = d[l],
            Object.prototype.hasOwnProperty.call(o, n) && o[n] && b.push(o[n][0]),
            o[n] = 0;
        for (r in f)
            Object.prototype.hasOwnProperty.call(f, r) && (e[r] = f[r]);
        for (u && u(t); b.length; )
            b.shift()();
        return c.push.apply(c, i || []),
        a()
    }
    function a() {
        for (var e, t = 0; t < c.length; t++) {
            for (var a = c[t], r = !0, n = 1; n < a.length; n++) {
                var f = a[n];
                0 !== o[f] && (r = !1)
            }
            r && (c.splice(t--, 1),
            e = d(d.s = a[0]))
        }
        return e
    }
    var r = {}
      , n = {
        20: 0
    }
      , o = {
        20: 0
    }
      , c = [];
    function d(t) {
        if (r[t])
            return r[t].exports;
        var a = r[t] = {
            i: t,
            l: !1,
            exports: {}
        };
        return e[t].call(a.exports, a, a.exports, d),
        a.l = !0,
        a.exports
    }
    d.e = function(e) {
        var t = [];
        n[e] ? t.push(n[e]) : 0 !== n[e] && {
            1: 1,
            3: 1,
            4: 1,
            5: 1,
            6: 1,
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        }[e] && t.push(n[e] = new Promise((function(t, a) {
            for (var r = "css/" + ({
                1: "common",
                3: "album",
                4: "albumDetail",
                5: "album_mall",
                6: "category",
                7: "cmtpage",
                8: "index",
                9: "msg_center",
                10: "mv",
                11: "mvList",
                12: "mv_toplist",
                13: "notfound",
                14: "player",
                15: "player_radio",
                16: "playlist",
                17: "playlist_edit",
                18: "profile",
                19: "radio",
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                24: "4c080567e394fd45608b",
                25: "8edb142553f97482e00f"
            }[e] + ".chunk.css?max_age=2592000", o = d.p + r, c = document.getElementsByTagName("link"), f = 0; f < c.length; f++) {
                var i = (u = c[f]).getAttribute("data-href") || u.getAttribute("href");
                if ("stylesheet" === u.rel && (i === r || i === o))
                    return t()
            }
            var l = document.getElementsByTagName("style");
            for (f = 0; f < l.length; f++) {
                var u;
                if ((i = (u = l[f]).getAttribute("data-href")) === r || i === o)
                    return t()
            }
            var b = document.createElement("link");
            b.rel = "stylesheet",
            b.type = "text/css",
            b.onload = t,
            b.onerror = function(t) {
                var r = t && t.target && t.target.src || o
                  , c = new Error("Loading CSS chunk " + e + " failed.\n(" + r + ")");
                c.code = "CSS_CHUNK_LOAD_FAILED",
                c.request = r,
                delete n[e],
                b.parentNode.removeChild(b),
                a(c)
            }
            ,
            b.href = o,
            0 !== b.href.indexOf(window.location.origin + "/") && (b.crossOrigin = "anonymous"),
            document.getElementsByTagName("head")[0].appendChild(b)
        }
        )).then((function() {
            n[e] = 0
        }
        )));
        var a = o[e];
        if (0 !== a)
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            else {
                var r = new Promise((function(t, r) {
                    a = o[e] = [t, r]
                }
                ));
                t.push(a[2] = r);
                var c, f = document.createElement("script");
                f.charset = "utf-8",
                f.timeout = 120,
                d.nc && f.setAttribute("nonce", d.nc),
                f.src = function(e) {
                    return d.p + "js/" + ({
                        1: "common",
                        3: "album",
                        4: "albumDetail",
                        5: "album_mall",
                        6: "category",
                        7: "cmtpage",
                        8: "index",
                        9: "msg_center",
                        10: "mv",
                        11: "mvList",
                        12: "mv_toplist",
                        13: "notfound",
                        14: "player",
                        15: "player_radio",
                        16: "playlist",
                        17: "playlist_edit",
                        18: "profile",
                        19: "radio",
                        21: "search",
                        22: "singer",
                        23: "singer_list",
                        24: "songDetail",
                        25: "toplist"
                    }[e] || e) + ".chunk." + {
                        1: "67e5eabd93ea08dd2bbf",
                        3: "57adeab72a3ec5a6940c",
                        4: "fb9a0df49aac1081fd8b",
                        5: "ce88bd122dac655490ca",
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                        24: "4e38573b87120e0a3b0a",
                        25: "f89cca2cc643a79036f5"
                    }[e] + ".js?max_age=2592000"
                }(e),
                0 !== f.src.indexOf(window.location.origin + "/") && (f.crossOrigin = "anonymous");
                var i = new Error;
                c = function(t) {
                    f.onerror = f.onload = null,
                    clearTimeout(l);
                    var a = o[e];
                    if (0 !== a) {
                        if (a) {
                            var r = t && ("load" === t.type ? "missing" : t.type)
                              , n = t && t.target && t.target.src;
                            i.message = "Loading chunk " + e + " failed.\n(" + r + ": " + n + ")",
                            i.name = "ChunkLoadError",
                            i.type = r,
                            i.request = n,
                            a[1](i)
                        }
                        o[e] = void 0
                    }
                }
                ;
                var l = setTimeout((function() {
                    c({
                        type: "timeout",
                        target: f
                    })
                }
                ), 12e4);
                f.onerror = f.onload = c,
                document.head.appendChild(f)
            }
        return Promise.all(t)
    }
    ,
    d.m = e,
    d.c = r,
    d.d = function(e, t, a) {
        d.o(e, t) || Object.defineProperty(e, t, {
            enumerable: !0,
            get: a
        })
    }
    ,
    d.r = function(e) {
        "undefined" !== typeof Symbol && Symbol.toStringTag && Object.defineProperty(e, Symbol.toStringTag, {
            value: "Module"
        }),
        Object.defineProperty(e, "__esModule", {
            value: !0
        })
    }
    ,
    d.t = function(e, t) {
        if (1 & t && (e = d(e)),
        8 & t)
            return e;
        if (4 & t && "object" === typeof e && e && e.__esModule)
            return e;
        var a = Object.create(null);
        if (d.r(a),
        Object.defineProperty(a, "default", {
            enumerable: !0,
            value: e
        }),
        2 & t && "string" != typeof e)
            for (var r in e)
                d.d(a, r, function(t) {
                    return e[t]
                }
                .bind(null, r));
        return a
    }
    ,
    d.n = function(e) {
        var t = e && e.__esModule ? function() {
            return e.default
        }
        : function() {
            return e
        }
        ;
        return d.d(t, "a", t),
        t
    }
    ,
    d.o = function(e, t) {
        return Object.prototype.hasOwnProperty.call(e, t)
    }
    ,
    d.p = "/ryqq/",
    d.oe = function(e) {
        throw e
    }
    ;
    var f = window.webpackJsonp = window.webpackJsonp || []
      , i = f.push.bind(f);
    f.push = t,
    f = f.slice();
    for (var l = 0; l < f.length; l++)
        t(f[l]);
    var u = i;
    a()
    main = d
}([]);

var data = '{"comm":{"cv":4747474,"ct":24,"format":"json","inCharset":"utf-8","outCharset":"utf-8","notice":0,"platform":"yqq.json","needNewCode":1,"uin":"1152921504780229326","g_tk_new_20200303":1991645248,"g_tk":1991645248},"req_1":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"35234550231236921","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_2":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"23413219684679994","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_3":{"module":"yqq.WhiteListServer","method":"Pass","param":{}},"req_4":{"module":"userInfo.VipQueryServer","method":"SRFVipQuery_V2","param":{"uin_list":["1152921504780229326"]}},"req_5":{"module":"userInfo.BaseUserInfoServer","method":"get_user_baseinfo_v2","param":{"vec_uin":["1152921504780229326"]}},"req_6":{"module":"music.lvz.VipIconUiShowSvr","method":"GetVipIconUiV2","param":{"PID":3}},"req_7":{"module":"MessageCenter.MessageCenterServer","method":"GetMessage","param":{"uin":"1152921504780229326","red_dot":[{"msg_type":1}]}},"req_8":{"module":"GlobalComment.GlobalCommentMessageReadServer","method":"GetMessage","param":{"uin":"1152921504780229326","page_num":0,"page_size":1,"last_msg_id":"","type":0}}}'

o = main(350).default
console.log(o(data))

最终执行结果发现执行效果对了，但是值没匹配上

4. 补window环境

继续断点，然后发现是有使用到window环境

不知道对不对，先把真实的window、location、navigator补齐

window = global;

location = { 
    "ancestorOrigins": {}, 
    "href": "https://y.qq.com/n/ryqq/search?w=%E5%91%A8%E6%9D%B0%E4%BC%A6",
    "origin": "https://y.qq.com",
    "protocol": "https:",
    "host": "y.qq.com",
    "hostname": "y.qq.com",
    "port": "", 
    "pathname": "/n/ryqq/search",
    "search": "?w=%E5%91%A8%E6%9D%B0%E4%BC%A6",
    "hash": ""
}

navigator = { 
    appCodeName: "Mozilla",
    appName: "Netscape",
    appVersion: "5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
}

重新执行，结果匹配上了

5. JS代码整理

全部main.js代码，ventor.js直接点击跳转下载，后续可能会更新，最好是抓新的

// 补环境
window = global;

location = { 
    "ancestorOrigins": {}, 
    "href": "https://y.qq.com/n/ryqq/search?w=%E5%91%A8%E6%9D%B0%E4%BC%A6",
    "origin": "https://y.qq.com",
    "protocol": "https:",
    "host": "y.qq.com",
    "hostname": "y.qq.com",
    "port": "", 
    "pathname": "/n/ryqq/search",
    "search": "?w=%E5%91%A8%E6%9D%B0%E4%BC%A6",
    "hash": ""
}

navigator = { 
    appCodeName: "Mozilla",
    appName: "Netscape",
    appVersion: "5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
}

var main
require('./ventor')
!function(e) {
    function t(t) {
        for (var r, n, d = t[0], f = t[1], i = t[2], l = 0, b = []; l < d.length; l++)
            n = d[l],
            Object.prototype.hasOwnProperty.call(o, n) && o[n] && b.push(o[n][0]),
            o[n] = 0;
        for (r in f)
            Object.prototype.hasOwnProperty.call(f, r) && (e[r] = f[r]);
        for (u && u(t); b.length; )
            b.shift()();
        return c.push.apply(c, i || []),
        a()
    }
    function a() {
        for (var e, t = 0; t < c.length; t++) {
            for (var a = c[t], r = !0, n = 1; n < a.length; n++) {
                var f = a[n];
                0 !== o[f] && (r = !1)
            }
            r && (c.splice(t--, 1),
            e = d(d.s = a[0]))
        }
        return e
    }
    var r = {}
      , n = {
        20: 0
    }
      , o = {
        20: 0
    }
      , c = [];
    function d(t) {
        if (r[t])
            return r[t].exports;
        var a = r[t] = {
            i: t,
            l: !1,
            exports: {}
        };
        return e[t].call(a.exports, a, a.exports, d),
        a.l = !0,
        a.exports
    }
    d.e = function(e) {
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            1: 1,
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            18: 1,
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            21: 1,
            22: 1,
            23: 1,
            24: 1,
            25: 1
        }[e] && t.push(n[e] = new Promise((function(t, a) {
            for (var r = "css/" + ({
                1: "common",
                3: "album",
                4: "albumDetail",
                5: "album_mall",
                6: "category",
                7: "cmtpage",
                8: "index",
                9: "msg_center",
                10: "mv",
                11: "mvList",
                12: "mv_toplist",
                13: "notfound",
                14: "player",
                15: "player_radio",
                16: "playlist",
                17: "playlist_edit",
                18: "profile",
                19: "radio",
                21: "search",
                22: "singer",
                23: "singer_list",
                24: "songDetail",
                25: "toplist"
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                c.request = r,
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                b.parentNode.removeChild(b),
                a(c)
            }
            ,
            b.href = o,
            0 !== b.href.indexOf(window.location.origin + "/") && (b.crossOrigin = "anonymous"),
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                        1: "common",
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                        8: "index",
                        9: "msg_center",
                        10: "mv",
                        11: "mvList",
                        12: "mv_toplist",
                        13: "notfound",
                        14: "player",
                        15: "player_radio",
                        16: "playlist",
                        17: "playlist_edit",
                        18: "profile",
                        19: "radio",
                        21: "search",
                        22: "singer",
                        23: "singer_list",
                        24: "songDetail",
                        25: "toplist"
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                    }[e] + ".js?max_age=2592000"
                }(e),
                0 !== f.src.indexOf(window.location.origin + "/") && (f.crossOrigin = "anonymous");
                var i = new Error;
                c = function(t) {
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                    clearTimeout(l);
                    var a = o[e];
                    if (0 !== a) {
                        if (a) {
                            var r = t && ("load" === t.type ? "missing" : t.type)
                              , n = t && t.target && t.target.src;
                            i.message = "Loading chunk " + e + " failed.\n(" + r + ": " + n + ")",
                            i.name = "ChunkLoadError",
                            i.type = r,
                            i.request = n,
                            a[1](i)
                        }
                        o[e] = void 0
                    }
                }
                ;
                var l = setTimeout((function() {
                    c({
                        type: "timeout",
                        target: f
                    })
                }
                ), 12e4);
                f.onerror = f.onload = c,
                document.head.appendChild(f)
            }
        return Promise.all(t)
    }
    ,
    d.m = e,
    d.c = r,
    d.d = function(e, t, a) {
        d.o(e, t) || Object.defineProperty(e, t, {
            enumerable: !0,
            get: a
        })
    }
    ,
    d.r = function(e) {
        "undefined" !== typeof Symbol && Symbol.toStringTag && Object.defineProperty(e, Symbol.toStringTag, {
            value: "Module"
        }),
        Object.defineProperty(e, "__esModule", {
            value: !0
        })
    }
    ,
    d.t = function(e, t) {
        if (1 & t && (e = d(e)),
        8 & t)
            return e;
        if (4 & t && "object" === typeof e && e && e.__esModule)
            return e;
        var a = Object.create(null);
        if (d.r(a),
        Object.defineProperty(a, "default", {
            enumerable: !0,
            value: e
        }),
        2 & t && "string" != typeof e)
            for (var r in e)
                d.d(a, r, function(t) {
                    return e[t]
                }
                .bind(null, r));
        return a
    }
    ,
    d.n = function(e) {
        var t = e && e.__esModule ? function() {
            return e.default
        }
        : function() {
            return e
        }
        ;
        return d.d(t, "a", t),
        t
    }
    ,
    d.o = function(e, t) {
        return Object.prototype.hasOwnProperty.call(e, t)
    }
    ,
    d.p = "/ryqq/",
    d.oe = function(e) {
        throw e
    }
    ;
    var f = window.webpackJsonp = window.webpackJsonp || []
      , i = f.push.bind(f);
    f.push = t,
    f = f.slice();
    for (var l = 0; l < f.length; l++)
        t(f[l]);
    var u = i;
    a()
    main = d
}([]);

var data = '{"comm":{"cv":4747474,"ct":24,"format":"json","inCharset":"utf-8","outCharset":"utf-8","notice":0,"platform":"yqq.json","needNewCode":1,"uin":"1152921504780229326","g_tk_new_20200303":1991645248,"g_tk":1991645248},"req_1":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"34882470289102960","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_2":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"30287636966430833","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_3":{"module":"yqq.WhiteListServer","method":"Pass","param":{}},"req_4":{"module":"userInfo.VipQueryServer","method":"SRFVipQuery_V2","param":{"uin_list":["1152921504780229326"]}},"req_5":{"module":"userInfo.BaseUserInfoServer","method":"get_user_baseinfo_v2","param":{"vec_uin":["1152921504780229326"]}},"req_6":{"module":"music.lvz.VipIconUiShowSvr","method":"GetVipIconUiV2","param":{"PID":3}},"req_7":{"module":"MessageCenter.MessageCenterServer","method":"GetMessage","param":{"uin":"1152921504780229326","red_dot":[{"msg_type":1}]}},"req_8":{"module":"GlobalComment.GlobalCommentMessageReadServer","method":"GetMessage","param":{"uin":"1152921504780229326","page_num":0,"page_size":1,"last_msg_id":"","type":0}}}'

o = main(350).default
console.log(o(data))

6. Python代码整理

import execjs

# 直接浏览器拷出来
data = '{"comm":{"cv":4747474,"ct":24,"format":"json","inCharset":"utf-8","outCharset":"utf-8","notice":0,"platform":"yqq.json","needNewCode":1,"uin":"1152921504780229326","g_tk_new_20200303":1991645248,"g_tk":1991645248},"req_1":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"34882470289102960","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_2":{"module":"music.musicsearch.HotkeyService","method":"GetHotkeyForQQMusicMobile","param":{"searchid":"30287636966430833","remoteplace":"txt.yqq.top","from":"yqqweb"}},"req_3":{"module":"yqq.WhiteListServer","method":"Pass","param":{}},"req_4":{"module":"userInfo.VipQueryServer","method":"SRFVipQuery_V2","param":{"uin_list":["1152921504780229326"]}},"req_5":{"module":"userInfo.BaseUserInfoServer","method":"get_user_baseinfo_v2","param":{"vec_uin":["1152921504780229326"]}},"req_6":{"module":"music.lvz.VipIconUiShowSvr","method":"GetVipIconUiV2","param":{"PID":3}},"req_7":{"module":"MessageCenter.MessageCenterServer","method":"GetMessage","param":{"uin":"1152921504780229326","red_dot":[{"msg_type":1}]}},"req_8":{"module":"GlobalComment.GlobalCommentMessageReadServer","method":"GetMessage","param":{"uin":"1152921504780229326","page_num":0,"page_size":1,"last_msg_id":"","type":0}}}'

# 获取sign加密参数
with open("./main.js", 'r', encoding='utf-8') as f: # 上面加载器的JS文件
    js_code = f.read()


sign = execjs.compile(js_code).call("get_sign", data)

print(sign)

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