【Python3爬虫】破解时光网登录加密参数并实现模拟登录

一、站点分析

　　MTime 时光网是一个电影媒体与电商服务平台，而这次做的模拟登录则是依靠其手机端站点，站点地址为：https://m.mtime.cn/#。切换到登录页面，再分别输入账号和错误的密码，点击登录，登录失败，截图如下：

　　

　　打开开发者工具， 选择“Network”，切换到“XHR”选项，找到一条名为 login.api 的请求，打开后可以发现就是登录所发送的请求，再查看该请求的参数部分，截图如下：

　　

二、参数破解

1.参数分析

　　经过前面的分析可知有五个参数需要获取，分别是 t、name、password、code 和 codeId，其中 code 和 codeId 目前看来是空的，无须处理，而 name 就是输入的手机号，password 应该是输入的密码加密后的结果，剩下一个 t 还不知道是什么含义。

2.参数获取

　　在开发者工具中，Ctrl + F 全局搜索“password”，找到如下的 JavaScript 文件：

https://static3.mtime.cn/html5/20200116143308/js/views/member/signin.js

　　打开该文件后搜索“password”，首先是获取 name 属性为“password”的输入框，在下文中还发现了 vcode 和 vcodeId，这两个就是后面请求所需的 code 和 vcode 参数的值，截图如下：

　　

　　继续搜索“password”，可以找到一个 getPassword() 方法，用于获取输入的密码内容，截图如下：　　 

　　

　　接着搜索“password”，找到如下内容：

　　

　　这就是登录请求时的参数部分，其中密码 password 是将输入的密码进行加密后的结果，使用的是 f.desEcbPkcs7 方法，那这个方法具体是什么呢？

3.加密方法

　　在上面的 JS 文件中的 217 行打上断点，然后刷新页面并重新登录，页面会进入 debugger 模式，然后选中 desEcbPkcs7 部分，点击后跳转到 app.all.min.js 中的如下代码部分：

　　

　　这个 af 函数就是加密方法了，其中用到了一个变量 CryptoJS，要获取这个变量的定义，就在上面代码中的1033行打上断点，再重新登录一遍，定位到 CryptoJS 的定义部分，截图如下：

　　

　　对于变量 CryptoJS 的定义包含在 libs.all.min.js 中，但这个文件中的代码量比较大，若全部复制下来使用会不方便，而我们也只需要得到对变量 CryptoJS 进行定义的代码就够了，所以建议先把该 JS 文件保存到本地，再用编辑器打开，就能很快地得到我们所需要的代码了，即使如此还是有一千四百多行（汗~）。

var CryptoJS = CryptoJS || function (g, w) {
    var m = {}
        , q = m.lib = {}
        , j = q.Base = function () {
        function a() {
        }

        return {
            extend: function (e) {
                a.prototype = this;
                var c = new a;
                return e && c.mixIn(e),
                    c.$super = this,
                    c
            },
            create: function () {
                var c = this.extend();
                return c.init.apply(c, arguments),
                    c
            },
            init: function () {
            },
            mixIn: function (c) {
                for (var f in c) {
                    c.hasOwnProperty(f) && (this[f] = c[f])
                }
                c.hasOwnProperty("toString") && (this.toString = c.toString)
            },
            clone: function () {
                return this.$super.extend(this)
            }
        }
    }()
        , v = q.WordArray = j.extend({
        init: function (a, c) {
            a = this.words = a || [],
                this.sigBytes = c != w ? c : 4 * a.length
        },
        toString: function (a) {
            return (a || x).stringify(this)
        },
        concat: function (a) {
            var o = this.words
                , f = a.words
                , l = this.sigBytes
                , a = a.sigBytes;
            this.clamp();
            if (l % 4) {
                for (var c = 0; c < a; c++) {
                    o[l + c >>> 2] |= (f[c >>> 2] >>> 24 - 8 * (c % 4) & 255) << 24 - 8 * ((l + c) % 4)
                }
            } else {
                if (65535 < f.length) {
                    for (c = 0; c < a; c += 4) {
                        o[l + c >>> 2] = f[c >>> 2]
                    }
                } else {
                    o.push.apply(o, f)
                }
            }
            return this.sigBytes += a,
                this
        },
        clamp: function () {
            var c = this.words
                , a = this.sigBytes;
            c[a >>> 2] &= 4294967295 << 32 - 8 * (a % 4),
                c.length = g.ceil(a / 4)
        },
        clone: function () {
            var a = j.clone.call(this);
            return a.words = this.words.slice(0),
                a
        },
        random: function (e) {
            for (var a = [], c = 0; c < e; c += 4) {
                a.push(4294967296 * g.random() | 0)
            }
            return v.create(a, e)
        }
    })
        , p = m.enc = {}
        , x = p.Hex = {
        stringify: function (a) {
            for (var o = a.words, a = a.sigBytes, f = [], l = 0; l < a; l++) {
                var c = o[l >>> 2] >>> 24 - 8 * (l % 4) & 255;
                f.push((c >>> 4).toString(16)),
                    f.push((c & 15).toString(16))
            }
            return f.join("")
        },
        parse: function (a) {
            for (var i = a.length, c = [], f = 0; f < i; f += 2) {
                c[f >>> 3] |= parseInt(a.substr(f, 2), 16) << 24 - 4 * (f % 8)
            }
            return v.create(c, i / 2)
        }
    }
        , b = p.Latin1 = {
        stringify: function (a) {
            for (var i = a.words, a = a.sigBytes, c = [], f = 0; f < a; f++) {
                c.push(String.fromCharCode(i[f >>> 2] >>> 24 - 8 * (f % 4) & 255))
            }
            return c.join("")
        },
        parse: function (a) {
            for (var i = a.length, c = [], f = 0; f < i; f++) {
                c[f >>> 2] |= (a.charCodeAt(f) & 255) << 24 - 8 * (f % 4)
            }
            return v.create(c, i)
        }
    }
        , h = p.Utf8 = {
        stringify: function (a) {
            try {
                return decodeURIComponent(escape(b.stringify(a)))
            } catch (c) {
                throw Error("Malformed UTF-8 data")
            }
        },
        parse: function (a) {
            return b.parse(unescape(encodeURIComponent(a)))
        }
    }
        , k = q.BufferedBlockAlgorithm = j.extend({
        reset: function () {
            this._data = v.create(),
                this._nDataBytes = 0
        },
        _append: function (a) {
            "string" == typeof a && (a = h.parse(a)),
                this._data.concat(a),
                this._nDataBytes += a.sigBytes
        },
        _process: function (y) {
            var f = this._data
                , s = f.words
                , e = f.sigBytes
                , l = this.blockSize
                , z = e / (4 * l)
                , z = y ? g.ceil(z) : g.max((z | 0) - this._minBufferSize, 0)
                , y = z * l
                , e = g.min(4 * y, e);
            if (y) {
                for (var c = 0; c < y; c += l) {
                    this._doProcessBlock(s, c)
                }
                c = s.splice(0, y),
                    f.sigBytes -= e
            }
            return v.create(c, e)
        },
        clone: function () {
            var a = j.clone.call(this);
            return a._data = this._data.clone(),
                a
        },
        _minBufferSize: 0
    });
    q.Hasher = k.extend({
        init: function () {
            this.reset()
        },
        reset: function () {
            k.reset.call(this),
                this._doReset()
        },
        update: function (a) {
            return this._append(a),
                this._process(),
                this
        },
        finalize: function (a) {
            return a && this._append(a),
                this._doFinalize(),
                this._hash
        },
        clone: function () {
            var a = k.clone.call(this);
            return a._hash = this._hash.clone(),
                a
        },
        blockSize: 16,
        _createHelper: function (a) {
            return function (e, c) {
                return a.create(c).finalize(e)
            }
        },
        _createHmacHelper: function (a) {
            return function (e, c) {
                return d.HMAC.create(a, c).finalize(e)
            }
        }
    });
    var d = m.algo = {};
    return m
}(Math)
    , CryptoJS = CryptoJS || function (g, w) {
    var m = {}
        , q = m.lib = {}
        , j = q.Base = function () {
        function a() {
        }

        return {
            extend: function (e) {
                a.prototype = this;
                var c = new a;
                return e && c.mixIn(e),
                    c.$super = this,
                    c
            },
            create: function () {
                var c = this.extend();
                return c.init.apply(c, arguments),
                    c
            },
            init: function () {
            },
            mixIn: function (c) {
                for (var f in c) {
                    c.hasOwnProperty(f) && (this[f] = c[f])
                }
                c.hasOwnProperty("toString") && (this.toString = c.toString)
            },
            clone: function () {
                return this.$super.extend(this)
            }
        }
    }()
        , v = q.WordArray = j.extend({
        init: function (a, c) {
            a = this.words = a || [],
                this.sigBytes = c != w ? c : 4 * a.length
        },
        toString: function (a) {
            return (a || x).stringify(this)
        },
        concat: function (a) {
            var o = this.words
                , f = a.words
                , l = this.sigBytes
                , a = a.sigBytes;
            this.clamp();
            if (l % 4) {
                for (var c = 0; c < a; c++) {
                    o[l + c >>> 2] |= (f[c >>> 2] >>> 24 - 8 * (c % 4) & 255) << 24 - 8 * ((l + c) % 4)
                }
            } else {
                if (65535 < f.length) {
                    for (c = 0; c < a; c += 4) {
                        o[l + c >>> 2] = f[c >>> 2]
                    }
                } else {
                    o.push.apply(o, f)
                }
            }
            return this.sigBytes += a,
                this
        },
        clamp: function () {
            var c = this.words
                , a = this.sigBytes;
            c[a >>> 2] &= 4294967295 << 32 - 8 * (a % 4),
                c.length = g.ceil(a / 4)
        },
        clone: function () {
            var a = j.clone.call(this);
            return a.words = this.words.slice(0),
                a
        },
        random: function (e) {
            for (var a = [], c = 0; c < e; c += 4) {
                a.push(4294967296 * g.random() | 0)
            }
            return v.create(a, e)
        }
    })
        , p = m.enc = {}
        , x = p.Hex = {
        stringify: function (a) {
            for (var o = a.words, a = a.sigBytes, f = [], l = 0; l < a; l++) {
                var c = o[l >>> 2] >>> 24 - 8 * (l % 4) & 255;
                f.push((c >>> 4).toString(16)),
                    f.push((c & 15).toString(16))
            }
            return f.join("")
        },
        parse: function (a) {
            for (var i = a.length, c = [], f = 0; f < i; f += 2) {
                c[f >>> 3] |= parseInt(a.substr(f, 2), 16) << 24 - 4 * (f % 8)
            }
            return v.create(c, i / 2)
        }
    }
        , b = p.Latin1 = {
        stringify: function (a) {
            for (var i = a.words, a = a.sigBytes, c = [], f = 0; f < a; f++) {
                c.push(String.fromCharCode(i[f >>> 2] >>> 24 - 8 * (f % 4) & 255))
            }
            return c.join("")
        },
        parse: function (a) {
            for (var i = a.length, c = [], f = 0; f < i; f++) {
                c[f >>> 2] |= (a.charCodeAt(f) & 255) << 24 - 8 * (f % 4)
            }
            return v.create(c, i)
        }
    }
        , h = p.Utf8 = {
        stringify: function (a) {
            try {
                return decodeURIComponent(escape(b.stringify(a)))
            } catch (c) {
                throw Error("Malformed UTF-8 data")
            }
        },
        parse: function (a) {
            return b.parse(unescape(encodeURIComponent(a)))
        }
    }
        , k = q.BufferedBlockAlgorithm = j.extend({
        reset: function () {
            this._data = v.create(),
                this._nDataBytes = 0
        },
        _append: function (a) {
            "string" == typeof a && (a = h.parse(a)),
                this._data.concat(a),
                this._nDataBytes += a.sigBytes
        },
        _process: function (y) {
            var f = this._data
                , s = f.words
                , e = f.sigBytes
                , l = this.blockSize
                , z = e / (4 * l)
                , z = y ? g.ceil(z) : g.max((z | 0) - this._minBufferSize, 0)
                , y = z * l
                , e = g.min(4 * y, e);
            if (y) {
                for (var c = 0; c < y; c += l) {
                    this._doProcessBlock(s, c)
                }
                c = s.splice(0, y),
                    f.sigBytes -= e
            }
            return v.create(c, e)
        },
        clone: function () {
            var a = j.clone.call(this);
            return a._data = this._data.clone(),
                a
        },
        _minBufferSize: 0
    });
    q.Hasher = k.extend({
        init: function () {
            this.reset()
        },
        reset: function () {
            k.reset.call(this),
                this._doReset()
        },
        update: function (a) {
            return this._append(a),
                this._process(),
                this
        },
        finalize: function (a) {
            return a && this._append(a),
                this._doFinalize(),
                this._hash
        },
        clone: function () {
            var a = k.clone.call(this);
            return a._hash = this._hash.clone(),
                a
        },
        blockSize: 16,
        _createHelper: function (a) {
            return function (e, c) {
                return a.create(c).finalize(e)
            }
        },
        _createHmacHelper: function (a) {
            return function (e, c) {
                return d.HMAC.create(a, c).finalize(e)
            }
        }
    });
    var d = m.algo = {};
    return m
}(Math);
(function () {
        var a = CryptoJS
            , b = a.lib.WordArray;
        a.enc.Base64 = {
            stringify: function (c) {
                var k = c.words
                    , f = c.sigBytes
                    , h = this._map;
                c.clamp();
                for (var c = [], d = 0; d < f; d += 3) {
                    for (var j = (k[d >>> 2] >>> 24 - 8 * (d % 4) & 255) << 16 | (k[d + 1 >>> 2] >>> 24 - 8 * ((d + 1) % 4) & 255) << 8 | k[d + 2 >>> 2] >>> 24 - 8 * ((d + 2) % 4) & 255, g = 0; 4 > g && d + 0.75 * g < f; g++) {
                        c.push(h.charAt(j >>> 6 * (3 - g) & 63))
                    }
                }
                if (k = h.charAt(64)) {
                    for (; c.length % 4;) {
                        c.push(k)
                    }
                }
                return c.join("")
            },
            parse: function (d) {
                var d = d.replace(/s/g, "")
                    , h = d.length
                    , j = this._map
                    , k = j.charAt(64);
                k && (k = d.indexOf(k),
                -1 != k && (h = k));
                for (var k = [], i = 0, l = 0; l < h; l++) {
                    if (l % 4) {
                        var c = j.indexOf(d.charAt(l - 1)) << 2 * (l % 4)
                            , g = j.indexOf(d.charAt(l)) >>> 6 - 2 * (l % 4);
                        k[i >>> 2] |= (c | g) << 24 - 8 * (i % 4),
                            i++
                    }
                }
                return b.create(k, i)
            },
            _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
        }
    }
)(),
    function (c) {
        function m(a, x, q, v, f, w, u) {
            return a = a + (x & q | ~x & v) + f + u,
            (a << w | a >>> 32 - w) + x
        }

        function h(a, x, q, v, f, w, u) {
            return a = a + (x & v | q & ~v) + f + u,
            (a << w | a >>> 32 - w) + x
        }

        function k(a, x, q, v, f, w, u) {
            return a = a + (x ^ q ^ v) + f + u,
            (a << w | a >>> 32 - w) + x
        }

        function g(a, x, q, v, f, w, u) {
            return a = a + (q ^ (x | ~v)) + f + u,
            (a << w | a >>> 32 - w) + x
        }

        var l = CryptoJS
            , j = l.lib
            , p = j.WordArray
            , j = j.Hasher
            , b = l.algo
            , d = [];
        (function () {
                for (var a = 0; 64 > a; a++) {
                    d[a] = 4294967296 * c.abs(c.sin(a + 1)) | 0
                }
            }
        )(),
            b = b.MD5 = j.extend({
                _doReset: function () {
                    this._hash = p.create([1732584193, 4023233417, 2562383102, 271733878])
                },
                _doProcessBlock: function (q, v) {
                    for (var t = 0; 16 > t; t++) {
                        var w = v + t
                            , f = q[w];
                        q[w] = (f << 8 | f >>> 24) & 16711935 | (f << 24 | f >>> 8) & 4278255360
                    }
                    for (var w = this._hash.words, f = w[0], r = w[1], i = w[2], n = w[3], t = 0; 64 > t; t += 4) {
                        16 > t ? (f = m(f, r, i, n, q[v + t], 7, d[t]),
                            n = m(n, f, r, i, q[v + t + 1], 12, d[t + 1]),
                            i = m(i, n, f, r, q[v + t + 2], 17, d[t + 2]),
                            r = m(r, i, n, f, q[v + t + 3], 22, d[t + 3])) : 32 > t ? (f = h(f, r, i, n, q[v + (t + 1) % 16], 5, d[t]),
                            n = h(n, f, r, i, q[v + (t + 6) % 16], 9, d[t + 1]),
                            i = h(i, n, f, r, q[v + (t + 11) % 16], 14, d[t + 2]),
                            r = h(r, i, n, f, q[v + t % 16], 20, d[t + 3])) : 48 > t ? (f = k(f, r, i, n, q[v + (3 * t + 5) % 16], 4, d[t]),
                            n = k(n, f, r, i, q[v + (3 * t + 8) % 16], 11, d[t + 1]),
                            i = k(i, n, f, r, q[v + (3 * t + 11) % 16], 16, d[t + 2]),
                            r = k(r, i, n, f, q[v + (3 * t + 14) % 16], 23, d[t + 3])) : (f = g(f, r, i, n, q[v + 3 * t % 16], 6, d[t]),
                            n = g(n, f, r, i, q[v + (3 * t + 7) % 16], 10, d[t + 1]),
                            i = g(i, n, f, r, q[v + (3 * t + 14) % 16], 15, d[t + 2]),
                            r = g(r, i, n, f, q[v + (3 * t + 5) % 16], 21, d[t + 3]))
                    }
                    w[0] = w[0] + f | 0,
                        w[1] = w[1] + r | 0,
                        w[2] = w[2] + i | 0,
                        w[3] = w[3] + n | 0
                },
                _doFinalize: function () {
                    var a = this._data
                        , o = a.words
                        , f = 8 * this._nDataBytes
                        , i = 8 * a.sigBytes;
                    o[i >>> 5] |= 128 << 24 - i % 32,
                        o[(i + 64 >>> 9 << 4) + 14] = (f << 8 | f >>> 24) & 16711935 | (f << 24 | f >>> 8) & 4278255360,
                        a.sigBytes = 4 * (o.length + 1),
                        this._process(),
                        a = this._hash.words;
                    for (o = 0; 4 > o; o++) {
                        f = a[o],
                            a[o] = (f << 8 | f >>> 24) & 16711935 | (f << 24 | f >>> 8) & 4278255360
                    }
                }
            }),
            l.MD5 = j._createHelper(b),
            l.HmacMD5 = j._createHmacHelper(b)
    }(Math),
    function () {
        var a = CryptoJS
            , f = a.lib
            , c = f.Base
            , d = f.WordArray
            , f = a.algo
            , b = f.EvpKDF = c.extend({
            cfg: c.extend({
                keySize: 4,
                hasher: f.MD5,
                iterations: 1
            }),
            init: function (g) {
                this.cfg = this.cfg.extend(g)
            },
            compute: function (h, q) {
                for (var l = this.cfg, k = l.hasher.create(), p = d.create(), m = p.words, r = l.keySize, l = l.iterations; m.length < r;) {
                    g && k.update(g);
                    var g = k.update(h).finalize(q);
                    k.reset();
                    for (var j = 1; j < l; j++) {
                        g = k.finalize(g),
                            k.reset()
                    }
                    p.concat(g)
                }
                return p.sigBytes = 4 * r,
                    p
            }
        });
        a.EvpKDF = function (g, i, h) {
            return b.create(h).compute(g, i)
        }
    }(),
CryptoJS.lib.Cipher || function (k) {
    var C = CryptoJS
        , x = C.lib
        , A = x.Base
        , v = x.WordArray
        , B = x.BufferedBlockAlgorithm
        , y = C.enc.Base64
        , D = C.algo.EvpKDF
        , b = x.Cipher = B.extend({
        cfg: A.extend(),
        createEncryptor: function (a, c) {
            return this.create(this._ENC_XFORM_MODE, a, c)
        },
        createDecryptor: function (a, c) {
            return this.create(this._DEC_XFORM_MODE, a, c)
        },
        init: function (a, d, c) {
            this.cfg = this.cfg.extend(c),
                this._xformMode = a,
                this._key = d,
                this.reset()
        },
        reset: function () {
            B.reset.call(this),
                this._doReset()
        },
        process: function (a) {
            return this._append(a),
                this._process()
        },
        finalize: function (a) {
            return a && this._append(a),
                this._doFinalize()
        },
        keySize: 4,
        ivSize: 4,
        _ENC_XFORM_MODE: 1,
        _DEC_XFORM_MODE: 2,
        _createHelper: function () {
            return function (a) {
                return {
                    encrypt: function (e, c, d) {
                        return ("string" == typeof c ? j : z).encrypt(a, e, c, d)
                    },
                    decrypt: function (e, c, d) {
                        return ("string" == typeof c ? j : z).decrypt(a, e, c, d)
                    }
                }
            }
        }()
    });
    x.StreamCipher = b.extend({
        _doFinalize: function () {
            return this._process(!0)
        },
        blockSize: 1
    });
    var m = C.mode = {}
        , w = x.BlockCipherMode = A.extend({
        createEncryptor: function (a, c) {
            return this.Encryptor.create(a, c)
        },
        createDecryptor: function (a, c) {
            return this.Decryptor.create(a, c)
        },
        init: function (a, c) {
            this._cipher = a,
                this._iv = c
        }
    })
        , m = m.CBC = function () {
        function c(l, e, f) {
            var d = this._iv;
            d ? this._iv = k : d = this._prevBlock;
            for (var h = 0; h < f; h++) {
                l[e + h] ^= d[h]
            }
        }

        var a = w.extend();
        return a.Encryptor = a.extend({
            processBlock: function (d, h) {
                var l = this._cipher
                    , f = l.blockSize;
                c.call(this, d, h, f),
                    l.encryptBlock(d, h),
                    this._prevBlock = d.slice(h, h + f)
            }
        }),
            a.Decryptor = a.extend({
                processBlock: function (d, h) {
                    var l = this._cipher
                        , f = l.blockSize
                        , o = d.slice(h, h + f);
                    l.decryptBlock(d, h),
                        c.call(this, d, h, f),
                        this._prevBlock = o
                }
            }),
            a
    }()
        , g = (C.pad = {}).Pkcs7 = {
        pad: function (a, i) {
            for (var c = 4 * i, c = c - a.sigBytes % c, f = c << 24 | c << 16 | c << 8 | c, h = [], d = 0; d < c; d += 4) {
                h.push(f)
            }
            c = v.create(h, c),
                a.concat(c)
        },
        unpad: function (a) {
            a.sigBytes -= a.words[a.sigBytes - 1 >>> 2] & 255
        }
    };
    x.BlockCipher = b.extend({
        cfg: b.cfg.extend({
            mode: m,
            padding: g
        }),
        reset: function () {
            b.reset.call(this);
            var a = this.cfg
                , d = a.iv
                , a = a.mode;
            if (this._xformMode == this._ENC_XFORM_MODE) {
                var c = a.createEncryptor
            } else {
                c = a.createDecryptor,
                    this._minBufferSize = 1
            }
            this._mode = c.call(a, this, d && d.words)
        },
        _doProcessBlock: function (a, c) {
            this._mode.processBlock(a, c)
        },
        _doFinalize: function () {
            var a = this.cfg.padding;
            if (this._xformMode == this._ENC_XFORM_MODE) {
                a.pad(this._data, this.blockSize);
                var c = this._process(!0)
            } else {
                c = this._process(!0),
                    a.unpad(c)
            }
            return c
        },
        blockSize: 4
    });
    var q = x.CipherParams = A.extend({
        init: function (a) {
            this.mixIn(a)
        },
        toString: function (a) {
            return (a || this.formatter).stringify(this)
        }
    })
        , m = (C.format = {}).OpenSSL = {
        stringify: function (a) {
            var c = a.ciphertext
                , a = a.salt
                , c = (a ? v.create([1398893684, 1701076831]).concat(a).concat(c) : c).toString(y);
            return c = c.replace(/(.{64})/g, "$1
")
        },
        parse: function (a) {
            var a = y.parse(a)
                , d = a.words;
            if (1398893684 == d[0] && 1701076831 == d[1]) {
                var c = v.create(d.slice(2, 4));
                d.splice(0, 4),
                    a.sigBytes -= 16
            }
            return q.create({
                ciphertext: a,
                salt: c
            })
        }
    }
        , z = x.SerializableCipher = A.extend({
        cfg: A.extend({
            format: m
        }),
        encrypt: function (a, h, d, f) {
            var f = this.cfg.extend(f)
                , c = a.createEncryptor(d, f)
                , h = c.finalize(h)
                , c = c.cfg;
            return q.create({
                ciphertext: h,
                key: d,
                iv: c.iv,
                algorithm: a,
                mode: c.mode,
                padding: c.padding,
                blockSize: a.blockSize,
                formatter: f.format
            })
        },
        decrypt: function (a, f, c, d) {
            return d = this.cfg.extend(d),
                f = this._parse(f, d.format),
                a.createDecryptor(c, d).finalize(f.ciphertext)
        },
        _parse: function (a, c) {
            return "string" == typeof a ? c.parse(a) : a
        }
    })
        , C = (C.kdf = {}).OpenSSL = {
        compute: function (a, f, c, d) {
            return d || (d = v.random(8)),
                a = D.create({
                    keySize: f + c
                }).compute(a, d),
                c = v.create(a.words.slice(f), 4 * c),
                a.sigBytes = 4 * f,
                q.create({
                    key: a,
                    iv: c,
                    salt: d
                })
        }
    }
        , j = x.PasswordBasedCipher = z.extend({
        cfg: z.cfg.extend({
            kdf: C
        }),
        encrypt: function (a, f, c, d) {
            return d = this.cfg.extend(d),
                c = d.kdf.compute(c, a.keySize, a.ivSize),
                d.iv = c.iv,
                a = z.encrypt.call(this, a, f, c.key, d),
                a.mixIn(c),
                a
        },
        decrypt: function (a, f, c, d) {
            return d = this.cfg.extend(d),
                f = this._parse(f, d.format),
                c = d.kdf.compute(c, a.keySize, a.ivSize, f.salt),
                d.iv = c.iv,
                z.decrypt.call(this, a, f, c.key, d)
        }
    })
}(),
    function () {
        function g(a, f) {
            var c = (this._lBlock >>> a ^ this._rBlock) & f;
            this._rBlock ^= c,
                this._lBlock ^= c << a
        }

        function w(a, f) {
            var c = (this._rBlock >>> a ^ this._lBlock) & f;
            this._lBlock ^= c,
                this._rBlock ^= c << a
        }

        var m = CryptoJS
            , q = m.lib
            , j = q.WordArray
            , q = q.BlockCipher
            , v = m.algo
            ,
            p = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4]
            ,
            x = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
            , b = [1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28]
            , h = [{
                0: 8421888,
                268435456: 32768,
                536870912: 8421378,
                805306368: 2,
                1073741824: 512,
                1342177280: 8421890,
                1610612736: 8389122,
                1879048192: 8388608,
                2147483648: 514,
                2415919104: 8389120,
                2684354560: 33280,
                2952790016: 8421376,
                3221225472: 32770,
                3489660928: 8388610,
                3758096384: 0,
                4026531840: 33282,
                134217728: 0,
                402653184: 8421890,
                671088640: 33282,
                939524096: 32768,
                1207959552: 8421888,
                1476395008: 512,
                1744830464: 8421378,
                2013265920: 2,
                2281701376: 8389120,
                2550136832: 33280,
                2818572288: 8421376,
                3087007744: 8389122,
                3355443200: 8388610,
                3623878656: 32770,
                3892314112: 514,
                4160749568: 8388608,
                1: 32768,
                268435457: 2,
                536870913: 8421888,
                805306369: 8388608,
                1073741825: 8421378,
                1342177281: 33280,
                1610612737: 512,
                1879048193: 8389122,
                2147483649: 8421890,
                2415919105: 8421376,
                2684354561: 8388610,
                2952790017: 33282,
                3221225473: 514,
                3489660929: 8389120,
                3758096385: 32770,
                4026531841: 0,
                134217729: 8421890,
                402653185: 8421376,
                671088641: 8388608,
                939524097: 512,
                1207959553: 32768,
                1476395009: 8388610,
                1744830465: 2,
                2013265921: 33282,
                2281701377: 32770,
                2550136833: 8389122,
                2818572289: 514,
                3087007745: 8421888,
                3355443201: 8389120,
                3623878657: 0,
                3892314113: 33280,
                4160749569: 8421378
            }, {
                0: 1074282512,
                16777216: 16384,
                33554432: 524288,
                50331648: 1074266128,
                67108864: 1073741840,
                83886080: 1074282496,
                100663296: 1073758208,
                117440512: 16,
                134217728: 540672,
                150994944: 1073758224,
                167772160: 1073741824,
                184549376: 540688,
                201326592: 524304,
                218103808: 0,
                234881024: 16400,
                251658240: 1074266112,
                8388608: 1073758208,
                25165824: 540688,
                41943040: 16,
                58720256: 1073758224,
                75497472: 1074282512,
                92274688: 1073741824,
                109051904: 524288,
                125829120: 1074266128,
                142606336: 524304,
                159383552: 0,
                176160768: 16384,
                192937984: 1074266112,
                209715200: 1073741840,
                226492416: 540672,
                243269632: 1074282496,
                260046848: 16400,
                268435456: 0,
                285212672: 1074266128,
                301989888: 1073758224,
                318767104: 1074282496,
                335544320: 1074266112,
                352321536: 16,
                369098752: 540688,
                385875968: 16384,
                402653184: 16400,
                419430400: 524288,
                436207616: 524304,
                452984832: 1073741840,
                469762048: 540672,
                486539264: 1073758208,
                503316480: 1073741824,
                520093696: 1074282512,
                276824064: 540688,
                293601280: 524288,
                310378496: 1074266112,
                327155712: 16384,
                343932928: 1073758208,
                360710144: 1074282512,
                377487360: 16,
                394264576: 1073741824,
                411041792: 1074282496,
                427819008: 1073741840,
                444596224: 1073758224,
                461373440: 524304,
                478150656: 0,
                494927872: 16400,
                511705088: 1074266128,
                528482304: 540672
            }, {
                0: 260,
                1048576: 0,
                2097152: 67109120,
                3145728: 65796,
                4194304: 65540,
                5242880: 67108868,
                6291456: 67174660,
                7340032: 67174400,
                8388608: 67108864,
                9437184: 67174656,
                10485760: 65792,
                11534336: 67174404,
                12582912: 67109124,
                13631488: 65536,
                14680064: 4,
                15728640: 256,
                524288: 67174656,
                1572864: 67174404,
                2621440: 0,
                3670016: 67109120,
                4718592: 67108868,
                5767168: 65536,
                6815744: 65540,
                7864320: 260,
                8912896: 4,
                9961472: 256,
                11010048: 67174400,
                12058624: 65796,
                13107200: 65792,
                14155776: 67109124,
                15204352: 67174660,
                16252928: 67108864,
                16777216: 67174656,
                17825792: 65540,
                18874368: 65536,
                19922944: 67109120,
                20971520: 256,
                22020096: 67174660,
                23068672: 67108868,
                24117248: 0,
                25165824: 67109124,
                26214400: 67108864,
                27262976: 4,
                28311552: 65792,
                29360128: 67174400,
                30408704: 260,
                31457280: 65796,
                32505856: 67174404,
                17301504: 67108864,
                18350080: 260,
                19398656: 67174656,
                20447232: 0,
                21495808: 65540,
                22544384: 67109120,
                23592960: 256,
                24641536: 67174404,
                25690112: 65536,
                26738688: 67174660,
                27787264: 65796,
                28835840: 67108868,
                29884416: 67109124,
                30932992: 67174400,
                31981568: 4,
                33030144: 65792
            }, {
                0: 2151682048,
                65536: 2147487808,
                131072: 4198464,
                196608: 2151677952,
                262144: 0,
                327680: 4198400,
                393216: 2147483712,
                458752: 4194368,
                524288: 2147483648,
                589824: 4194304,
                655360: 64,
                720896: 2147487744,
                786432: 2151678016,
                851968: 4160,
                917504: 4096,
                983040: 2151682112,
                32768: 2147487808,
                98304: 64,
                163840: 2151678016,
                229376: 2147487744,
                294912: 4198400,
                360448: 2151682112,
                425984: 0,
                491520: 2151677952,
                557056: 4096,
                622592: 2151682048,
                688128: 4194304,
                753664: 4160,
                819200: 2147483648,
                884736: 4194368,
                950272: 4198464,
                1015808: 2147483712,
                1048576: 4194368,
                1114112: 4198400,
                1179648: 2147483712,
                1245184: 0,
                1310720: 4160,
                1376256: 2151678016,
                1441792: 2151682048,
                1507328: 2147487808,
                1572864: 2151682112,
                1638400: 2147483648,
                1703936: 2151677952,
                1769472: 4198464,
                1835008: 2147487744,
                1900544: 4194304,
                1966080: 64,
                2031616: 4096,
                1081344: 2151677952,
                1146880: 2151682112,
                1212416: 0,
                1277952: 4198400,
                1343488: 4194368,
                1409024: 2147483648,
                1474560: 2147487808,
                1540096: 64,
                1605632: 2147483712,
                1671168: 4096,
                1736704: 2147487744,
                1802240: 2151678016,
                1867776: 4160,
                1933312: 2151682048,
                1998848: 4194304,
                2064384: 4198464
            }, {
                0: 128,
                4096: 17039360,
                8192: 262144,
                12288: 536870912,
                16384: 537133184,
                20480: 16777344,
                24576: 553648256,
                28672: 262272,
                32768: 16777216,
                36864: 537133056,
                40960: 536871040,
                45056: 553910400,
                49152: 553910272,
                53248: 0,
                57344: 17039488,
                61440: 553648128,
                2048: 17039488,
                6144: 553648256,
                10240: 128,
                14336: 17039360,
                18432: 262144,
                22528: 537133184,
                26624: 553910272,
                30720: 536870912,
                34816: 537133056,
                38912: 0,
                43008: 553910400,
                47104: 16777344,
                51200: 536871040,
                55296: 553648128,
                59392: 16777216,
                63488: 262272,
                65536: 262144,
                69632: 128,
                73728: 536870912,
                77824: 553648256,
                81920: 16777344,
                86016: 553910272,
                90112: 537133184,
                94208: 16777216,
                98304: 553910400,
                102400: 553648128,
                106496: 17039360,
                110592: 537133056,
                114688: 262272,
                118784: 536871040,
                122880: 0,
                126976: 17039488,
                67584: 553648256,
                71680: 16777216,
                75776: 17039360,
                79872: 537133184,
                83968: 536870912,
                88064: 17039488,
                92160: 128,
                96256: 553910272,
                100352: 262272,
                104448: 553910400,
                108544: 0,
                112640: 553648128,
                116736: 16777344,
                120832: 262144,
                124928: 537133056,
                129024: 536871040
            }, {
                0: 268435464,
                256: 8192,
                512: 270532608,
                768: 270540808,
                1024: 268443648,
                1280: 2097152,
                1536: 2097160,
                1792: 268435456,
                2048: 0,
                2304: 268443656,
                2560: 2105344,
                2816: 8,
                3072: 270532616,
                3328: 2105352,
                3584: 8200,
                3840: 270540800,
                128: 270532608,
                384: 270540808,
                640: 8,
                896: 2097152,
                1152: 2105352,
                1408: 268435464,
                1664: 268443648,
                1920: 8200,
                2176: 2097160,
                2432: 8192,
                2688: 268443656,
                2944: 270532616,
                3200: 0,
                3456: 270540800,
                3712: 2105344,
                3968: 268435456,
                4096: 268443648,
                4352: 270532616,
                4608: 270540808,
                4864: 8200,
                5120: 2097152,
                5376: 268435456,
                5632: 268435464,
                5888: 2105344,
                6144: 2105352,
                6400: 0,
                6656: 8,
                6912: 270532608,
                7168: 8192,
                7424: 268443656,
                7680: 270540800,
                7936: 2097160,
                4224: 8,
                4480: 2105344,
                4736: 2097152,
                4992: 268435464,
                5248: 268443648,
                5504: 8200,
                5760: 270540808,
                6016: 270532608,
                6272: 270540800,
                6528: 270532616,
                6784: 8192,
                7040: 2105352,
                7296: 2097160,
                7552: 0,
                7808: 268435456,
                8064: 268443656
            }, {
                0: 1048576,
                16: 33555457,
                32: 1024,
                48: 1049601,
                64: 34604033,
                80: 0,
                96: 1,
                112: 34603009,
                128: 33555456,
                144: 1048577,
                160: 33554433,
                176: 34604032,
                192: 34603008,
                208: 1025,
                224: 1049600,
                240: 33554432,
                8: 34603009,
                24: 0,
                40: 33555457,
                56: 34604032,
                72: 1048576,
                88: 33554433,
                104: 33554432,
                120: 1025,
                136: 1049601,
                152: 33555456,
                168: 34603008,
                184: 1048577,
                200: 1024,
                216: 34604033,
                232: 1,
                248: 1049600,
                256: 33554432,
                272: 1048576,
                288: 33555457,
                304: 34603009,
                320: 1048577,
                336: 33555456,
                352: 34604032,
                368: 1049601,
                384: 1025,
                400: 34604033,
                416: 1049600,
                432: 1,
                448: 0,
                464: 34603008,
                480: 33554433,
                496: 1024,
                264: 1049600,
                280: 33555457,
                296: 34603009,
                312: 1,
                328: 33554432,
                344: 1048576,
                360: 1025,
                376: 34604032,
                392: 33554433,
                408: 34603008,
                424: 0,
                440: 34604033,
                456: 1049601,
                472: 1024,
                488: 33555456,
                504: 1048577
            }, {
                0: 134219808,
                1: 131072,
                2: 134217728,
                3: 32,
                4: 131104,
                5: 134350880,
                6: 134350848,
                7: 2048,
                8: 134348800,
                9: 134219776,
                10: 133120,
                11: 134348832,
                12: 2080,
                13: 0,
                14: 134217760,
                15: 133152,
                2147483648: 2048,
                2147483649: 134350880,
                2147483650: 134219808,
                2147483651: 134217728,
                2147483652: 134348800,
                2147483653: 133120,
                2147483654: 133152,
                2147483655: 32,
                2147483656: 134217760,
                2147483657: 2080,
                2147483658: 131104,
                2147483659: 134350848,
                2147483660: 0,
                2147483661: 134348832,
                2147483662: 134219776,
                2147483663: 131072,
                16: 133152,
                17: 134350848,
                18: 32,
                19: 2048,
                20: 134219776,
                21: 134217760,
                22: 134348832,
                23: 131072,
                24: 0,
                25: 131104,
                26: 134348800,
                27: 134219808,
                28: 134350880,
                29: 133120,
                30: 2080,
                31: 134217728,
                2147483664: 131072,
                2147483665: 2048,
                2147483666: 134348832,
                2147483667: 133152,
                2147483668: 32,
                2147483669: 134348800,
                2147483670: 134217728,
                2147483671: 134219808,
                2147483672: 134350880,
                2147483673: 134217760,
                2147483674: 134219776,
                2147483675: 0,
                2147483676: 133120,
                2147483677: 2080,
                2147483678: 131104,
                2147483679: 134350848
            }]
            , k = [4160749569, 528482304, 33030144, 2064384, 129024, 8064, 504, 2147483679]
            , d = v.DES = q.extend({
                _doReset: function () {
                    for (var a = this._key.words, u = [], f = 0; 56 > f; f++) {
                        var l = p[f] - 1;
                        u[f] = a[l >>> 5] >>> 31 - l % 32 & 1
                    }
                    a = this._subKeys = [];
                    for (l = 0; 16 > l; l++) {
                        for (var c = a[l] = [], o = b[l], f = 0; 24 > f; f++) {
                            c[f / 6 | 0] |= u[(x[f] - 1 + o) % 28] << 31 - f % 6,
                                c[4 + (f / 6 | 0)] |= u[28 + (x[f + 24] - 1 + o) % 28] << 31 - f % 6
                        }
                        c[0] = c[0] << 1 | c[0] >>> 31;
                        for (f = 1; 7 > f; f++) {
                            c[f] >>>= 4 * (f - 1) + 3
                        }
                        c[7] = c[7] << 5 | c[7] >>> 27
                    }
                    u = this._invSubKeys = [];
                    for (f = 0; 16 > f; f++) {
                        u[f] = a[15 - f]
                    }
                },
                encryptBlock: function (a, c) {
                    this._doCryptBlock(a, c, this._subKeys)
                },
                decryptBlock: function (a, c) {
                    this._doCryptBlock(a, c, this._invSubKeys)
                },
                _doCryptBlock: function (y, A, t) {
                    this._lBlock = y[A],
                        this._rBlock = y[A + 1],
                        g.call(this, 4, 252645135),
                        g.call(this, 16, 65535),
                        w.call(this, 2, 858993459),
                        w.call(this, 8, 16711935),
                        g.call(this, 1, 1431655765);
                    for (var B = 0; 16 > B; B++) {
                        for (var z = t[B], C = this._lBlock, e = this._rBlock, f = 0, l = 0; 8 > l; l++) {
                            f |= h[l][((e ^ z[l]) & k[l]) >>> 0]
                        }
                        this._lBlock = e,
                            this._rBlock = C ^ f
                    }
                    t = this._lBlock,
                        this._lBlock = this._rBlock,
                        this._rBlock = t,
                        g.call(this, 1, 1431655765),
                        w.call(this, 8, 16711935),
                        w.call(this, 2, 858993459),
                        g.call(this, 16, 65535),
                        g.call(this, 4, 252645135),
                        y[A] = this._lBlock,
                        y[A + 1] = this._rBlock
                },
                keySize: 2,
                ivSize: 2,
                blockSize: 2
            });
        m.DES = q._createHelper(d),
            v = v.TripleDES = q.extend({
                _doReset: function () {
                    var a = this._key.words;
                    this._des1 = d.createEncryptor(j.create(a.slice(0, 2))),
                        this._des2 = d.createEncryptor(j.create(a.slice(2, 4))),
                        this._des3 = d.createEncryptor(j.create(a.slice(4, 6)))
                },
                encryptBlock: function (a, c) {
                    this._des1.encryptBlock(a, c),
                        this._des2.decryptBlock(a, c),
                        this._des3.encryptBlock(a, c)
                },
                decryptBlock: function (a, c) {
                    this._des3.decryptBlock(a, c),
                        this._des2.encryptBlock(a, c),
                        this._des1.decryptBlock(a, c)
                },
                keySize: 6,
                ivSize: 2,
                blockSize: 2
            }),
            m.TripleDES = q._createHelper(v)
    }();
CryptoJS.mode.ECB = function () {
    var a = CryptoJS.lib.BlockCipherMode.extend();
    return a.Encryptor = a.extend({
        processBlock: function (b, c) {
            this._cipher.encryptBlock(b, c)
        }
    }),
    a.Decryptor = a.extend({
        processBlock: function (b, c) {
            this._cipher.decryptBlock(b, c)
        }
    }),
    a
}();

　　得到了加密代码之后，我们只需要使用 execjs 进行编译和调用就可以了，使用方法可以参考上一篇博客。

三、模拟登录

　　通过前面的步骤，我们已经能够得到登录所需要的参数了，编写好加密方法之后，可以使用 Postman 进行测试，下面是用 Postman 进行登录的 POST 请求的响应结果：

　　从图中可以看到，返回的是一个 JSON 文件，其中包含了登录请求是否成功、登录的结果信息和用户信息等内容。 下面就是使用 Python 编写的模拟登录时光网的代码：

"""
Version: Python3.7
Author: OniOn
Site: http://www.cnblogs.com/TM0831/
Time: 2020/7/5 14:19
"""
import execjs
import requests


class MTimeSpider:
    def __init__(self, username, password):
        self.username = username
        self.password = password

    def encrypted(self):
        """
        use JavaScript to encrypt the password
        :return:
        """
        with open("encrypt.js", "r", encoding="utf-8") as f:
            ctx = execjs.compile(f.read())
            self.password = ctx.call("encrypt", self.password)

    def request(self):
        """
        send request and get the response
        :return:
        """
        self.encrypted()
        login_api = "https://m.mtime.cn/Service/callback-comm.mi/user/login.api"
        data = {
            "t": "20207515574379774",
            "name": self.username,
            "password": self.password,
            "code": "",
            "codeId": ""
        }
        res = requests.post(url=login_api, data=data)
        status, msg = res.json()["data"]["status"], res.json()["data"]["msg"]
        # print(status, msg)
        if status == 1:
            name = res.json()["data"]["user"]["nickname"]
            print("用户： {} 登录成功！".format(name))
        else:
            print("登录失败！{}".format(msg))


if __name__ == '__main__':
    print("请输入账号：")
    usr = input()
    print("请输入密码：")
    pwd = input()
    spider = MTimeSpider(usr, pwd)
    spider.request()

　　运行后的截图如下：

　　

完整代码已上传到 GitHub！