// All the content in this article is only for learning and communication use, not for any other purpose, strictly prohibited for commercial use and illegal use, otherwise all the consequences are irrelevant to the author!
function rc4_encrypt(plaintext, key) {
    var s = []
    for (var i = 0; i < 256; i++) {
        s[i] = i
    }
    var j = 0
    for (var i = 0; i < 256; i++) {
        j = (j + s[i] + key.charCodeAt(i % key.length)) % 256
        var temp = s[i]
        s[i] = s[j]
        s[j] = temp
    }

    var i = 0
    var j = 0
    var cipher = []
    for (var k = 0; k < plaintext.length; k++) {
        i = (i + 1) % 256
        j = (j + s[i]) % 256
        var temp = s[i]
        s[i] = s[j]
        s[j] = temp
        var t = (s[i] + s[j]) % 256
        cipher.push(String.fromCharCode(s[t] ^ plaintext.charCodeAt(k)))
    }
    return cipher.join('')
}

function le(e, r) {
    return ((e << (r %= 32)) | (e >>> (32 - r))) >>> 0
}

function de(e) {
    return 0 <= e && e < 16 ? 2043430169 : 16 <= e && e < 64 ? 2055708042 : void console['error']('invalid j for constant Tj')
}

function pe(e, r, t, n) {
    return 0 <= e && e < 16
        ? (r ^ t ^ n) >>> 0
        : 16 <= e && e < 64
            ? ((r & t) | (r & n) | (t & n)) >>> 0
            : (console['error']('invalid j for bool function FF'), 0)
}

function he(e, r, t, n) {
    return 0 <= e && e < 16 ? (r ^ t ^ n) >>> 0 : 16 <= e && e < 64 ? ((r & t) | (~r & n)) >>> 0 : (console['error']('invalid j for bool function GG'), 0)
}

function reset() {
    ;(this.reg[0] = 1937774191),
        (this.reg[1] = 1226093241),
        (this.reg[2] = 388252375),
        (this.reg[3] = 3666478592),
        (this.reg[4] = 2842636476),
        (this.reg[5] = 372324522),
        (this.reg[6] = 3817729613),
        (this.reg[7] = 2969243214),
        (this['chunk'] = []),
        (this['size'] = 0)
}

function write(e) {
    let n
    var a =
        'string' == typeof e
            ? (function (e) {
                ;(n = encodeURIComponent(e)['replace'](/%([0-9A-F]{2})/g, function (e, r) {
                    return String['fromCharCode']('0x' + r)
                })),
                    (a = new Array(n['length']))
                return (
                    Array['prototype']['forEach']['call'](n, function (e, r) {
                        a[r] = e.charCodeAt(0)
                    }),
                        a
                )
            })(e)
            : e
    this.size += a.length
    var f = 64 - this['chunk']['length']
    if (a['length'] < f) this['chunk'] = this['chunk'].concat(a)
    else
        for (this['chunk'] = this['chunk'].concat(a.slice(0, f)); this['chunk'].length >= 64; )
            this['_compress'](this['chunk']), f < a['length'] ? (this['chunk'] = a['slice'](f, Math['min'](f + 64, a['length']))) : (this['chunk'] = []), (f += 64)
}

function sum(e, t) {
    e && (this['reset'](), this['write'](e)), this['_fill']()
    for (var f = 0; f < this.chunk['length']; f += 64) this._compress(this['chunk']['slice'](f, f + 64))
    var i = null
    if (t == 'hex') {
        i = ''
        for (f = 0; f < 8; f++) i += se(this['reg'][f]['toString'](16), 8, '0')
    } else
        for (i = new Array(32), f = 0; f < 8; f++) {
            var c = this.reg[f]
            ;(i[4 * f + 3] = (255 & c) >>> 0),
                (c >>>= 8),
                (i[4 * f + 2] = (255 & c) >>> 0),
                (c >>>= 8),
                (i[4 * f + 1] = (255 & c) >>> 0),
                (c >>>= 8),
                (i[4 * f] = (255 & c) >>> 0)
        }
    return this['reset'](), i
}

function _compress(t) {
    if (t < 64) console.error('compress error: not enough data')
    else {
        for (
            var f = (function (e) {
                    for (var r = new Array(132), t = 0; t < 16; t++)
                        (r[t] = e[4 * t] << 24), (r[t] |= e[4 * t + 1] << 16), (r[t] |= e[4 * t + 2] << 8), (r[t] |= e[4 * t + 3]), (r[t] >>>= 0)
                    for (var n = 16; n < 68; n++) {
                        var a = r[n - 16] ^ r[n - 9] ^ le(r[n - 3], 15)
                        ;(a = a ^ le(a, 15) ^ le(a, 23)), (r[n] = (a ^ le(r[n - 13], 7) ^ r[n - 6]) >>> 0)
                    }
                    for (n = 0; n < 64; n++) r[n + 68] = (r[n] ^ r[n + 4]) >>> 0
                    return r
                })(t),
                i = this['reg'].slice(0),
                c = 0;
            c < 64;
            c++
        ) {
            var o = le(i[0], 12) + i[4] + le(de(c), c),
                s = ((o = le((o = (4294967295 & o) >>> 0), 7)) ^ le(i[0], 12)) >>> 0,
                u = pe(c, i[0], i[1], i[2])
            u = (4294967295 & (u = u + i[3] + s + f[c + 68])) >>> 0
            var b = he(c, i[4], i[5], i[6])
            ;(b = (4294967295 & (b = b + i[7] + o + f[c])) >>> 0),
                (i[3] = i[2]),
                (i[2] = le(i[1], 9)),
                (i[1] = i[0]),
                (i[0] = u),
                (i[7] = i[6]),
                (i[6] = le(i[5], 19)),
                (i[5] = i[4]),
                (i[4] = (b ^ le(b, 9) ^ le(b, 17)) >>> 0)
        }
        for (var l = 0; l < 8; l++) this['reg'][l] = (this['reg'][l] ^ i[l]) >>> 0
    }
}

function _fill() {
    var a = 8 * this['size'],
        f = this['chunk']['push'](128) % 64
    for (64 - f < 8 && (f -= 64); f < 56; f++) this.chunk['push'](0)
    for (var i = 0; i < 4; i++) {
        var c = Math['floor'](a / 4294967296)
        this['chunk'].push((c >>> (8 * (3 - i))) & 255)
    }
    for (i = 0; i < 4; i++) this['chunk']['push']((a >>> (8 * (3 - i))) & 255)
}

function SM3() {
    this.reg = []
    this.chunk = []
    this.size = 0
    this.reset()
}
SM3.prototype.reset = reset
SM3.prototype.write = write
SM3.prototype.sum = sum
SM3.prototype._compress = _compress
SM3.prototype._fill = _fill

function result_encrypt(long_str, num = null) {
    let s_obj = {
        s0: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',
        s1: 'Dkdpgh4ZKsQB80/Mfvw36XI1R25+WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe=',
        s2: 'Dkdpgh4ZKsQB80/Mfvw36XI1R25-WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe=',
        s3: 'ckdp1h4ZKsUB80/Mfvw36XIgR25+WQAlEi7NLboqYTOPuzmFjJnryx9HVGDaStCe',
        s4: 'Dkdpgh2ZmsQB80/MfvV36XI1R45-WUAlEixNLwoqYTOPuzKFjJnry79HbGcaStCe',
    }
    let constant = {
        0: 16515072,
        1: 258048,
        2: 4032,
        str: s_obj[num],
    }

    let result = ''
    let lound = 0
    let long_int = get_long_int(lound, long_str)
    for (let i = 0; i < (long_str.length / 3) * 4; i++) {
        if (Math.floor(i / 4) !== lound) {
            lound += 1
            long_int = get_long_int(lound, long_str)
        }
        let key = i % 4
        switch (key) {
            case 0:
                temp_int = (long_int & constant['0']) >> 18
                result += constant['str'].charAt(temp_int)
                break
            case 1:
                temp_int = (long_int & constant['1']) >> 12
                result += constant['str'].charAt(temp_int)
                break
            case 2:
                temp_int = (long_int & constant['2']) >> 6
                result += constant['str'].charAt(temp_int)
                break
            case 3:
                temp_int = long_int & 63
                result += constant['str'].charAt(temp_int)
                break
            default:
                break
        }
    }
    return result
}

function get_long_int(round, long_str) {
    round = round * 3
    return (long_str.charCodeAt(round) << 16) | (long_str.charCodeAt(round + 1) << 8) | long_str.charCodeAt(round + 2)
}

function gener_random(random, option) {
    return [
        (random & 255 & 170) | (option[0] & 85), // 163
        (random & 255 & 85) | (option[0] & 170), //87
        ((random >> 8) & 255 & 170) | (option[1] & 85), //37
        ((random >> 8) & 255 & 85) | (option[1] & 170), //41
    ]
}

//////////////////////////////////////////////
function generate_rc4_bb_str(url_search_params, user_agent, window_env_str, suffix = 'cus', Arguments = [0, 1, 14]) {
    let sm3 = new SM3()
    let start_time = Date.now()
    /**
     * 进行3次加密处理
     * 1: url_search_params两次sm3之的结果
     * 2: 对后缀两次sm3之的结果
     * 3: 对ua处理之后的结果
     */
        // url_search_params两次sm3之的结果
    let url_search_params_list = sm3.sum(sm3.sum(url_search_params + suffix))
    // 对后缀两次sm3之的结果
    let cus = sm3.sum(sm3.sum(suffix))
    // 对ua处理之后的结果
    let ua = sm3.sum(result_encrypt(rc4_encrypt(user_agent, String.fromCharCode.apply(null, [0.00390625, 1, 14])), 's3'))
    //
    let end_time = Date.now()
    // b
    let b = {
        8: 3, // 固定
        10: end_time, //3次加密结束时间
        15: {
            aid: 6383,
            pageId: 6241,
            boe: false,
            ddrt: 7,
            paths: {
                include: [{}, {}, {}, {}, {}, {}, {}],
                exclude: [],
            },
            track: {
                mode: 0,
                delay: 300,
                paths: [],
            },
            dump: true,
            rpU: '',
        },
        16: start_time, //3次加密开始时间
        18: 44, //固定
        19: [1, 0, 1, 5],
    }

    //3次加密开始时间
    b[20] = (b[16] >> 24) & 255
    b[21] = (b[16] >> 16) & 255
    b[22] = (b[16] >> 8) & 255
    b[23] = b[16] & 255
    b[24] = (b[16] / 256 / 256 / 256 / 256) >> 0
    b[25] = (b[16] / 256 / 256 / 256 / 256 / 256) >> 0

    // 参数Arguments [0, 1, 14, ...]
    // let Arguments = [0, 1, 14]
    b[26] = (Arguments[0] >> 24) & 255
    b[27] = (Arguments[0] >> 16) & 255
    b[28] = (Arguments[0] >> 8) & 255
    b[29] = Arguments[0] & 255

    b[30] = (Arguments[1] / 256) & 255
    b[31] = Arguments[1] % 256 & 255
    b[32] = (Arguments[1] >> 24) & 255
    b[33] = (Arguments[1] >> 16) & 255

    b[34] = (Arguments[2] >> 24) & 255
    b[35] = (Arguments[2] >> 16) & 255
    b[36] = (Arguments[2] >> 8) & 255
    b[37] = Arguments[2] & 255

    // (url_search_params + "cus") 两次sm3之的结果
    /**let url_search_params_list = [
     91, 186,  35,  86, 143, 253,   6,  76,
     34,  21, 167, 148,   7,  42, 192, 219,
     188,  20, 182,  85, 213,  74, 213, 147,
     37, 155,  93, 139,  85, 118, 228, 213
     ]*/
    b[38] = url_search_params_list[21]
    b[39] = url_search_params_list[22]

    // ("cus") 对后缀两次sm3之的结果
    /**
     * let cus = [
     136, 101, 114, 147,  58,  77, 207, 201,
     215, 162, 154,  93, 248,  13, 142, 160,
     105,  73, 215, 241,  83,  58,  51,  43,
     255,  38, 168, 141, 216, 194,  35, 236
     ]*/
    b[40] = cus[21]
    b[41] = cus[22]

    // 对ua处理之后的结果
    /**
     * let ua = [
     129, 190,  70, 186,  86, 196, 199,  53,
     99,  38,  29, 209, 243,  17, 157,  69,
     147, 104,  53,  23, 114, 126,  66, 228,
     135,  30, 168, 185, 109, 156, 251,  88
     ]*/
    b[42] = ua[23]
    b[43] = ua[24]

    //3次加密结束时间
    b[44] = (b[10] >> 24) & 255
    b[45] = (b[10] >> 16) & 255
    b[46] = (b[10] >> 8) & 255
    b[47] = b[10] & 255
    b[48] = b[8]
    b[49] = (b[10] / 256 / 256 / 256 / 256) >> 0
    b[50] = (b[10] / 256 / 256 / 256 / 256 / 256) >> 0

    // object配置项
    b[51] = b[15]['pageId']
    b[52] = (b[15]['pageId'] >> 24) & 255
    b[53] = (b[15]['pageId'] >> 16) & 255
    b[54] = (b[15]['pageId'] >> 8) & 255
    b[55] = b[15]['pageId'] & 255

    b[56] = b[15]['aid']
    b[57] = b[15]['aid'] & 255
    b[58] = (b[15]['aid'] >> 8) & 255
    b[59] = (b[15]['aid'] >> 16) & 255
    b[60] = (b[15]['aid'] >> 24) & 255

    // 中间进行了环境检测
    // 代码索引:  2496 索引值:  17 （索引64关键条件）
    // '1536|747|1536|834|0|30|0|0|1536|834|1536|864|1525|747|24|24|Win32'.charCodeAt()得到65位数组
    /**
     * let window_env_list = [49, 53, 51, 54, 124, 55, 52, 55, 124, 49, 53, 51, 54, 124, 56, 51, 52, 124, 48, 124, 51,
     * 48, 124, 48, 124, 48, 124, 49, 53, 51, 54, 124, 56, 51, 52, 124, 49, 53, 51, 54, 124, 56,
     * 54, 52, 124, 49, 53, 50, 53, 124, 55, 52, 55, 124, 50, 52, 124, 50, 52, 124, 87, 105, 110,
     * 51, 50]
     */
    let window_env_list = []
    for (let index = 0; index < window_env_str.length; index++) {
        window_env_list.push(window_env_str.charCodeAt(index))
    }
    b[64] = window_env_list.length
    b[65] = b[64] & 255
    b[66] = (b[64] >> 8) & 255

    b[69] = [].length
    b[70] = b[69] & 255
    b[71] = (b[69] >> 8) & 255

    b[72] =
        b[18] ^
        b[20] ^
        b[26] ^
        b[30] ^
        b[38] ^
        b[40] ^
        b[42] ^
        b[21] ^
        b[27] ^
        b[31] ^
        b[35] ^
        b[39] ^
        b[41] ^
        b[43] ^
        b[22] ^
        b[28] ^
        b[32] ^
        b[36] ^
        b[23] ^
        b[29] ^
        b[33] ^
        b[37] ^
        b[44] ^
        b[45] ^
        b[46] ^
        b[47] ^
        b[48] ^
        b[49] ^
        b[50] ^
        b[24] ^
        b[25] ^
        b[52] ^
        b[53] ^
        b[54] ^
        b[55] ^
        b[57] ^
        b[58] ^
        b[59] ^
        b[60] ^
        b[65] ^
        b[66] ^
        b[70] ^
        b[71]
    let bb = [
        b[18],
        b[20],
        b[52],
        b[26],
        b[30],
        b[34],
        b[58],
        b[38],
        b[40],
        b[53],
        b[42],
        b[21],
        b[27],
        b[54],
        b[55],
        b[31],
        b[35],
        b[57],
        b[39],
        b[41],
        b[43],
        b[22],
        b[28],
        b[32],
        b[60],
        b[36],
        b[23],
        b[29],
        b[33],
        b[37],
        b[44],
        b[45],
        b[59],
        b[46],
        b[47],
        b[48],
        b[49],
        b[50],
        b[24],
        b[25],
        b[65],
        b[66],
        b[70],
        b[71],
    ]
    bb = bb.concat(window_env_list).concat(b[72])
    return rc4_encrypt(String.fromCharCode.apply(null, bb), String.fromCharCode.apply(null, [121]))
}

function generate_random_str() {
    let random_str_list = []
    random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [3, 45]))
    random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [1, 0]))
    random_str_list = random_str_list.concat(gener_random(Math.random() * 10000, [1, 5]))
    return String.fromCharCode.apply(null, random_str_list)
}

function generate_a_bogus(url_search_params, user_agent) {
    /**
     * url_search_params："device_platform=webapp&aid=6383&channel=channel_pc_web&update_version_code=170400&pc_client_type=1&version_code=170400&version_name=17.4.0&cookie_enabled=true&screen_width=1536&screen_height=864&browser_language=zh-CN&browser_platform=Win32&browser_name=Chrome&browser_version=123.0.0.0&browser_online=true&engine_name=Blink&engine_version=123.0.0.0&os_name=Windows&os_version=10&cpu_core_num=16&device_memory=8&platform=PC&downlink=10&effective_type=4g&round_trip_time=50&webid=7362810250930783783&msToken=VkDUvz1y24CppXSl80iFPr6ez-3FiizcwD7fI1OqBt6IICq9RWG7nCvxKb8IVi55mFd-wnqoNkXGnxHrikQb4PuKob5Q-YhDp5Um215JzlBszkUyiEvR"
     * user_agent："Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36"
     */
    let result_str =
        generate_random_str() + generate_rc4_bb_str(url_search_params, user_agent, '1536|747|1536|834|0|30|0|0|1536|834|1536|864|1525|747|24|24|Win32')
    return result_encrypt(result_str, 's4') + '='
}
module.exports = {
    generate_a_bogus,
}

//测试调用
// console.log(generate_a_bogus(
//     "device_platform=webapp&aid=6383&channel=channel_pc_web&update_version_code=170400&pc_client_type=1&version_code=170400&version_name=17.4.0&cookie_enabled=true&screen_width=1536&screen_height=864&browser_language=zh-CN&browser_platform=Win32&browser_name=Chrome&browser_version=123.0.0.0&browser_online=true&engine_name=Blink&engine_version=123.0.0.0&os_name=Windows&os_version=10&cpu_core_num=16&device_memory=8&platform=PC&downlink=10&effective_type=4g&round_trip_time=50&webid=7362810250930783783&msToken=VkDUvz1y24CppXSl80iFPr6ez-3FiizcwD7fI1OqBt6IICq9RWG7nCvxKb8IVi55mFd-wnqoNkXGnxHrikQb4PuKob5Q-YhDp5Um215JzlBszkUyiEvR",
//     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36"
// ));