1、申 请 I D：牛肉丸鸭爪
2、个人邮箱：niurow@qq.com
3、原创技术文章：某酷的drm加密分析 |
首先声明所有分析用的代码都来自互联网。
某酷视频加密方式有会多种，现在用的最普遍的是某酷自家的DRM加密，用的是AES-ECB加密。这个原理其实是在https://www.320nle.com/vvtoolbox-gui-series/3455.html这个分享内容里得知的，作者也提供了工具。但是某酷在此后就封禁了prompt函数，一使用该函数就会向视频日志发送用户的账户信息，建议不要再使用该函数，可以使用油猴脚本或者其他弹窗函数来查看。
这个播放器源码就在视频页里 xxxxx-player.min.js
首先将代码下载下来，一般释出的代码都是经过压缩的，直接上https://www.sojson.com/js.html 把代码进行解压解密。
搜索了一番发现aes的解密模块是在一个名叫TS_MUXER_SOURCE的模块下，这个模块在运行时是一个web_worker(html5的多线程方式)，应该是为了解密的同时防止主线程阻塞。
该模块的几个开放接口：
[JavaScript] 纯文本查看 复制代码 switch(type){
case "INIT":
tsMuxer.initTransmuxer(data);
break;
case "BUFFER_DATA":
tsMuxer.push(data);
break;
case "SET_BASEMEDIA_DECODE_TIME":
tsMuxer.setBaseMediaDecodeTime(data);
break;
case "RESET_INIT_SEGMENT":
tsMuxer.resetInitSegment();
break;
case "SET_DISCONTINUITY":
tsMuxer.setDiscontinuity(data);
break;
case "CHANGE_DECODE_KEY":
tsMuxer.changeDecodeKey(data)
break;
case "CLEAN_WHEN_ERROR":
tsMuxer.cleanWhenError();
break;
case "CLEAN":
tsMuxer.clean()
break;
所以以这里为切入口进行分析，同样把这个模块代码下载后解密。
下面开始直接分析这个模块就行了。
首先是initTransmuxer() 这个函数是初始化解析器的参数，其中就包含了解密用的 key。
所以目前key已经找到了。
这几个函数中唯一和数据相关的函数是 tsMuxer.push(data);
这里push进去的数据会通过下面这个回调函数返回：
[JavaScript] 纯文本查看 复制代码 const tsMuxer = new global.TsMuxer(function(dataSet, transferable) {
context.postMessage(dataSet, transferable)
});
这里是最外层的调用
首先是ts包的拆分，以188个字节进行拆分处理
然后是对数据包分类处理，这里可以看到只有pmt和pes包会处理
发现PES包处理的a函数有古怪，这里是比较关键的一步，因为这里看见了
基本上到这里就可以了分析出加解密的原理了。
为了看得更清楚把函数a进行了还原。
[JavaScript] 纯文本查看 复制代码 a = function (payLoadDataList, payloadType, o) {
var isValidPayload, _buffer, _payloadBuffer = new Uint8Array(payLoadDataList.size),
payloadStruct = {
type: payloadType
},
count = 0,
size = 0;
if (payLoadDataList.data.length && !(payLoadDataList.size < 9)) {
payloadStruct.trackId = payLoadDataList.data[0].pid
for (count = 0; count < payLoadDataList.data.length; count++) {
_buffer = payLoadDataList.data[count];
_payloadBuffer.set(_buffer.data, size);
size += _buffer.data.byteLength;
}
var _payloadBufferCache, _struct, _flag;
_payloadBufferCache = _payloadBuffer;
_struct = payloadStruct;
_struct.packetLength = 6 + (_payloadBufferCache[4] << 8 | _payloadBufferCache[5]);
_struct.dataAlignmentIndicator = 0 != (4 & _payloadBufferCache[6]);
192 & (_flag = _payloadBufferCache[7]) && (_struct.pts = (14 & _payloadBufferCache[9]) << 27 | (255 & _payloadBufferCache[10]) << 20 | (254 & _payloadBufferCache[11]) << 12 | (255 & _payloadBufferCache[12]) << 5 | (254 & _payloadBufferCache[13]) >>> 3, _struct.pts *= 4, _struct.pts += (6 & _payloadBufferCache[13]) >>> 1, _struct.dts = _struct.pts, 64 & _flag && (_struct.dts = (14 & _payloadBufferCache[14]) << 27 | (255 & _payloadBufferCache[15]) << 20 | (254 & _payloadBufferCache[16]) << 12 | (255 & _payloadBufferCache[17]) << 5 | (254 & _payloadBufferCache[18]) >>> 3, _struct.dts *= 4, _struct.dts += (6 & _payloadBufferCache[18]) >>> 1));
_struct.data = _payloadBufferCache.subarray(9 + _payloadBufferCache[8]);
e.decodeKey && r && (_struct.data = tt(_struct.data, e.decodeKey));
isValidPayload = "video" === payloadType || payloadStruct.packetLength <= payLoadDataList.size;
(o || isValidPayload) && (payLoadDataList.size = 0, payLoadDataList.data.length = 0);
isValidPayload && t.trigger("data", payloadStruct);
}
};
数据流：188字节的ts包
->去掉包头184字节负载
->payloadUnitStartIndicator判断是否是负载开始
->每一段以负载开始的数据放入队列
->每获取完一整段负载就开始进行解密
->需要解密的负载去掉 9 + _payloadBufferCache[8] 个字节
->开始解密
->得到解密后的数据
->视频数据进行解码
所以了解的原理就开始动手了。直接放源码吧，我把整个流程进行了简化，去掉了视频解码部分，只进行解密。这个模块是nodejs模块，可以直接用于数据解密。
[JavaScript] 纯文本查看 复制代码 const path = require("path");
const fse = require("fs-extra");
const atob = require('atob');
let ykDecript = function () {
var Oe = {
16: 10,
24: 12,
32: 14
},
Ne = [1, 2, 4, 8, 16, 32, 64, 128, 27, 54, 108, 216, 171, 77, 154, 47, 94, 188, 99, 198, 151, 53, 106, 212, 179, 125, 250, 239, 197, 145],
je = [99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215, 171, 118, 202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175, 156, 164, 114, 192, 183, 253, 147, 38, 54, 63, 247, 204, 52, 165, 229, 241, 113, 216, 49, 21, 4, 199, 35, 195, 24, 150, 5, 154, 7, 18, 128, 226, 235, 39, 178, 117, 9, 131, 44, 26, 27, 110, 90, 160, 82, 59, 214, 179, 41, 227, 47, 132, 83, 209, 0, 237, 32, 252, 177, 91, 106, 203, 190, 57, 74, 76, 88, 207, 208, 239, 170, 251, 67, 77, 51, 133, 69, 249, 2, 127, 80, 60, 159, 168, 81, 163, 64, 143, 146, 157, 56, 245, 188, 182, 218, 33, 16, 255, 243, 210, 205, 12, 19, 236, 95, 151, 68, 23, 196, 167, 126, 61, 100, 93, 25, 115, 96, 129, 79, 220, 34, 42, 144, 136, 70, 238, 184, 20, 222, 94, 11, 219, 224, 50, 58, 10, 73, 6, 36, 92, 194, 211, 172, 98, 145, 149, 228, 121, 231, 200, 55, 109, 141, 213, 78, 169, 108, 86, 244, 234, 101, 122, 174, 8, 186, 120, 37, 46, 28, 166, 180, 198, 232, 221, 116, 31, 75, 189, 139, 138, 112, 62, 181, 102, 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158, 225, 248, 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223, 140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84, 187, 22],
Ue = [82, 9, 106, 213, 48, 54, 165, 56, 191, 64, 163, 158, 129, 243, 215, 251, 124, 227, 57, 130, 155, 47, 255, 135, 52, 142, 67, 68, 196, 222, 233, 203, 84, 123, 148, 50, 166, 194, 35, 61, 238, 76, 149, 11, 66, 250, 195, 78, 8, 46, 161, 102, 40, 217, 36, 178, 118, 91, 162, 73, 109, 139, 209, 37, 114, 248, 246, 100, 134, 104, 152, 22, 212, 164, 92, 204, 93, 101, 182, 146, 108, 112, 72, 80, 253, 237, 185, 218, 94, 21, 70, 87, 167, 141, 157, 132, 144, 216, 171, 0, 140, 188, 211, 10, 247, 228, 88, 5, 184, 179, 69, 6, 208, 44, 30, 143, 202, 63, 15, 2, 193, 175, 189, 3, 1, 19, 138, 107, 58, 145, 17, 65, 79, 103, 220, 234, 151, 242, 207, 206, 240, 180, 230, 115, 150, 172, 116, 34, 231, 173, 53, 133, 226, 249, 55, 232, 28, 117, 223, 110, 71, 241, 26, 113, 29, 41, 197, 137, 111, 183, 98, 14, 170, 24, 190, 27, 252, 86, 62, 75, 198, 210, 121, 32, 154, 219, 192, 254, 120, 205, 90, 244, 31, 221, 168, 51, 136, 7, 199, 49, 177, 18, 16, 89, 39, 128, 236, 95, 96, 81, 127, 169, 25, 181, 74, 13, 45, 229, 122, 159, 147, 201, 156, 239, 160, 224, 59, 77, 174, 42, 245, 176, 200, 235, 187, 60, 131, 83, 153, 97, 23, 43, 4, 126, 186, 119, 214, 38, 225, 105, 20, 99, 85, 33, 12, 125],
Be = [3328402341, 4168907908, 4000806809, 4135287693, 4294111757, 3597364157, 3731845041, 2445657428, 1613770832, 33620227, 3462883241, 1445669757, 3892248089, 3050821474, 1303096294, 3967186586, 2412431941, 528646813, 2311702848, 4202528135, 4026202645, 2992200171, 2387036105, 4226871307, 1101901292, 3017069671, 1604494077, 1169141738, 597466303, 1403299063, 3832705686, 2613100635, 1974974402, 3791519004, 1033081774, 1277568618, 1815492186, 2118074177, 4126668546, 2211236943, 1748251740, 1369810420, 3521504564, 4193382664, 3799085459, 2883115123, 1647391059, 706024767, 134480908, 2512897874, 1176707941, 2646852446, 806885416, 932615841, 168101135, 798661301, 235341577, 605164086, 461406363, 3756188221, 3454790438, 1311188841, 2142417613, 3933566367, 302582043, 495158174, 1479289972, 874125870, 907746093, 3698224818, 3025820398, 1537253627, 2756858614, 1983593293, 3084310113, 2108928974, 1378429307, 3722699582, 1580150641, 327451799, 2790478837, 3117535592, 0, 3253595436, 1075847264, 3825007647, 2041688520, 3059440621, 3563743934, 2378943302, 1740553945, 1916352843, 2487896798, 2555137236, 2958579944, 2244988746, 3151024235, 3320835882, 1336584933, 3992714006, 2252555205, 2588757463, 1714631509, 293963156, 2319795663, 3925473552, 67240454, 4269768577, 2689618160, 2017213508, 631218106, 1269344483, 2723238387, 1571005438, 2151694528, 93294474, 1066570413, 563977660, 1882732616, 4059428100, 1673313503, 2008463041, 2950355573, 1109467491, 537923632, 3858759450, 4260623118, 3218264685, 2177748300, 403442708, 638784309, 3287084079, 3193921505, 899127202, 2286175436, 773265209, 2479146071, 1437050866, 4236148354, 2050833735, 3362022572, 3126681063, 840505643, 3866325909, 3227541664, 427917720, 2655997905, 2749160575, 1143087718, 1412049534, 999329963, 193497219, 2353415882, 3354324521, 1807268051, 672404540, 2816401017, 3160301282, 369822493, 2916866934, 3688947771, 1681011286, 1949973070, 336202270, 2454276571, 201721354, 1210328172, 3093060836, 2680341085, 3184776046, 1135389935, 3294782118, 965841320, 831886756, 3554993207, 4068047243, 3588745010, 2345191491, 1849112409, 3664604599, 26054028, 2983581028, 2622377682, 1235855840, 3630984372, 2891339514, 4092916743, 3488279077, 3395642799, 4101667470, 1202630377, 268961816, 1874508501, 4034427016, 1243948399, 1546530418, 941366308, 1470539505, 1941222599, 2546386513, 3421038627, 2715671932, 3899946140, 1042226977, 2521517021, 1639824860, 227249030, 260737669, 3765465232, 2084453954, 1907733956, 3429263018, 2420656344, 100860677, 4160157185, 470683154, 3261161891, 1781871967, 2924959737, 1773779408, 394692241, 2579611992, 974986535, 664706745, 3655459128, 3958962195, 731420851, 571543859, 3530123707, 2849626480, 126783113, 865375399, 765172662, 1008606754, 361203602, 3387549984, 2278477385, 2857719295, 1344809080, 2782912378, 59542671, 1503764984, 160008576, 437062935, 1707065306, 3622233649, 2218934982, 3496503480, 2185314755, 697932208, 1512910199, 504303377, 2075177163, 2824099068, 1841019862, 739644986],
Fe = [2781242211, 2230877308, 2582542199, 2381740923, 234877682, 3184946027, 2984144751, 1418839493, 1348481072, 50462977, 2848876391, 2102799147, 434634494, 1656084439, 3863849899, 2599188086, 1167051466, 2636087938, 1082771913, 2281340285, 368048890, 3954334041, 3381544775, 201060592, 3963727277, 1739838676, 4250903202, 3930435503, 3206782108, 4149453988, 2531553906, 1536934080, 3262494647, 484572669, 2923271059, 1783375398, 1517041206, 1098792767, 49674231, 1334037708, 1550332980, 4098991525, 886171109, 150598129, 2481090929, 1940642008, 1398944049, 1059722517, 201851908, 1385547719, 1699095331, 1587397571, 674240536, 2704774806, 252314885, 3039795866, 151914247, 908333586, 2602270848, 1038082786, 651029483, 1766729511, 3447698098, 2682942837, 454166793, 2652734339, 1951935532, 775166490, 758520603, 3000790638, 4004797018, 4217086112, 4137964114, 1299594043, 1639438038, 3464344499, 2068982057, 1054729187, 1901997871, 2534638724, 4121318227, 1757008337, 0, 750906861, 1614815264, 535035132, 3363418545, 3988151131, 3201591914, 1183697867, 3647454910, 1265776953, 3734260298, 3566750796, 3903871064, 1250283471, 1807470800, 717615087, 3847203498, 384695291, 3313910595, 3617213773, 1432761139, 2484176261, 3481945413, 283769337, 100925954, 2180939647, 4037038160, 1148730428, 3123027871, 3813386408, 4087501137, 4267549603, 3229630528, 2315620239, 2906624658, 3156319645, 1215313976, 82966005, 3747855548, 3245848246, 1974459098, 1665278241, 807407632, 451280895, 251524083, 1841287890, 1283575245, 337120268, 891687699, 801369324, 3787349855, 2721421207, 3431482436, 959321879, 1469301956, 4065699751, 2197585534, 1199193405, 2898814052, 3887750493, 724703513, 2514908019, 2696962144, 2551808385, 3516813135, 2141445340, 1715741218, 2119445034, 2872807568, 2198571144, 3398190662, 700968686, 3547052216, 1009259540, 2041044702, 3803995742, 487983883, 1991105499, 1004265696, 1449407026, 1316239930, 504629770, 3683797321, 168560134, 1816667172, 3837287516, 1570751170, 1857934291, 4014189740, 2797888098, 2822345105, 2754712981, 936633572, 2347923833, 852879335, 1133234376, 1500395319, 3084545389, 2348912013, 1689376213, 3533459022, 3762923945, 3034082412, 4205598294, 133428468, 634383082, 2949277029, 2398386810, 3913789102, 403703816, 3580869306, 2297460856, 1867130149, 1918643758, 607656988, 4049053350, 3346248884, 1368901318, 600565992, 2090982877, 2632479860, 557719327, 3717614411, 3697393085, 2249034635, 2232388234, 2430627952, 1115438654, 3295786421, 2865522278, 3633334344, 84280067, 33027830, 303828494, 2747425121, 1600795957, 4188952407, 3496589753, 2434238086, 1486471617, 658119965, 3106381470, 953803233, 334231800, 3005978776, 857870609, 3151128937, 1890179545, 2298973838, 2805175444, 3056442267, 574365214, 2450884487, 550103529, 1233637070, 4289353045, 2018519080, 2057691103, 2399374476, 4166623649, 2148108681, 387583245, 3664101311, 836232934, 3330556482, 3100665960, 3280093505, 2955516313, 2002398509, 287182607, 3413881008, 4238890068, 3597515707, 975967766],
ze = [1671808611, 2089089148, 2006576759, 2072901243, 4061003762, 1807603307, 1873927791, 3310653893, 810573872, 16974337, 1739181671, 729634347, 4263110654, 3613570519, 2883997099, 1989864566, 3393556426, 2191335298, 3376449993, 2106063485, 4195741690, 1508618841, 1204391495, 4027317232, 2917941677, 3563566036, 2734514082, 2951366063, 2629772188, 2767672228, 1922491506, 3227229120, 3082974647, 4246528509, 2477669779, 644500518, 911895606, 1061256767, 4144166391, 3427763148, 878471220, 2784252325, 3845444069, 4043897329, 1905517169, 3631459288, 827548209, 356461077, 67897348, 3344078279, 593839651, 3277757891, 405286936, 2527147926, 84871685, 2595565466, 118033927, 305538066, 2157648768, 3795705826, 3945188843, 661212711, 2999812018, 1973414517, 152769033, 2208177539, 745822252, 439235610, 455947803, 1857215598, 1525593178, 2700827552, 1391895634, 994932283, 3596728278, 3016654259, 695947817, 3812548067, 795958831, 2224493444, 1408607827, 3513301457, 0, 3979133421, 543178784, 4229948412, 2982705585, 1542305371, 1790891114, 3410398667, 3201918910, 961245753, 1256100938, 1289001036, 1491644504, 3477767631, 3496721360, 4012557807, 2867154858, 4212583931, 1137018435, 1305975373, 861234739, 2241073541, 1171229253, 4178635257, 33948674, 2139225727, 1357946960, 1011120188, 2679776671, 2833468328, 1374921297, 2751356323, 1086357568, 2408187279, 2460827538, 2646352285, 944271416, 4110742005, 3168756668, 3066132406, 3665145818, 560153121, 271589392, 4279952895, 4077846003, 3530407890, 3444343245, 202643468, 322250259, 3962553324, 1608629855, 2543990167, 1154254916, 389623319, 3294073796, 2817676711, 2122513534, 1028094525, 1689045092, 1575467613, 422261273, 1939203699, 1621147744, 2174228865, 1339137615, 3699352540, 577127458, 712922154, 2427141008, 2290289544, 1187679302, 3995715566, 3100863416, 339486740, 3732514782, 1591917662, 186455563, 3681988059, 3762019296, 844522546, 978220090, 169743370, 1239126601, 101321734, 611076132, 1558493276, 3260915650, 3547250131, 2901361580, 1655096418, 2443721105, 2510565781, 3828863972, 2039214713, 3878868455, 3359869896, 928607799, 1840765549, 2374762893, 3580146133, 1322425422, 2850048425, 1823791212, 1459268694, 4094161908, 3928346602, 1706019429, 2056189050, 2934523822, 135794696, 3134549946, 2022240376, 628050469, 779246638, 472135708, 2800834470, 3032970164, 3327236038, 3894660072, 3715932637, 1956440180, 522272287, 1272813131, 3185336765, 2340818315, 2323976074, 1888542832, 1044544574, 3049550261, 1722469478, 1222152264, 50660867, 4127324150, 236067854, 1638122081, 895445557, 1475980887, 3117443513, 2257655686, 3243809217, 489110045, 2662934430, 3778599393, 4162055160, 2561878936, 288563729, 1773916777, 3648039385, 2391345038, 2493985684, 2612407707, 505560094, 2274497927, 3911240169, 3460925390, 1442818645, 678973480, 3749357023, 2358182796, 2717407649, 2306869641, 219617805, 3218761151, 3862026214, 1120306242, 1756942440, 1103331905, 2578459033, 762796589, 252780047, 2966125488, 1425844308, 3151392187, 372911126],
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Ge = [4104605777, 1097159550, 396673818, 660510266, 2875968315, 2638606623, 4200115116, 3808662347, 821712160, 1986918061, 3430322568, 38544885, 3856137295, 718002117, 893681702, 1654886325, 2975484382, 3122358053, 3926825029, 4274053469, 796197571, 1290801793, 1184342925, 3556361835, 2405426947, 2459735317, 1836772287, 1381620373, 3196267988, 1948373848, 3764988233, 3385345166, 3263785589, 2390325492, 1480485785, 3111247143, 3780097726, 2293045232, 548169417, 3459953789, 3746175075, 439452389, 1362321559, 1400849762, 1685577905, 1806599355, 2174754046, 137073913, 1214797936, 1174215055, 3731654548, 2079897426, 1943217067, 1258480242, 529487843, 1437280870, 3945269170, 3049390895, 3313212038, 923313619, 679998e3, 3215307299, 57326082, 377642221, 3474729866, 2041877159, 133361907, 1776460110, 3673476453, 96392454, 878845905, 2801699524, 777231668, 4082475170, 2330014213, 4142626212, 2213296395, 1626319424, 1906247262, 1846563261, 562755902, 3708173718, 1040559837, 3871163981, 1418573201, 3294430577, 114585348, 1343618912, 2566595609, 3186202582, 1078185097, 3651041127, 3896688048, 2307622919, 425408743, 3371096953, 2081048481, 1108339068, 2216610296, 0, 2156299017, 736970802, 292596766, 1517440620, 251657213, 2235061775, 2933202493, 758720310, 265905162, 1554391400, 1532285339, 908999204, 174567692, 1474760595, 4002861748, 2610011675, 3234156416, 3693126241, 2001430874, 303699484, 2478443234, 2687165888, 585122620, 454499602, 151849742, 2345119218, 3064510765, 514443284, 4044981591, 1963412655, 2581445614, 2137062819, 19308535, 1928707164, 1715193156, 4219352155, 1126790795, 600235211, 3992742070, 3841024952, 836553431, 1669664834, 2535604243, 3323011204, 1243905413, 3141400786, 4180808110, 698445255, 2653899549, 2989552604, 2253581325, 3252932727, 3004591147, 1891211689, 2487810577, 3915653703, 4237083816, 4030667424, 2100090966, 865136418, 1229899655, 953270745, 3399679628, 3557504664, 4118925222, 2061379749, 3079546586, 2915017791, 983426092, 2022837584, 1607244650, 2118541908, 2366882550, 3635996816, 972512814, 3283088770, 1568718495, 3499326569, 3576539503, 621982671, 2895723464, 410887952, 2623762152, 1002142683, 645401037, 1494807662, 2595684844, 1335535747, 2507040230, 4293295786, 3167684641, 367585007, 3885750714, 1865862730, 2668221674, 2960971305, 2763173681, 1059270954, 2777952454, 2724642869, 1320957812, 2194319100, 2429595872, 2815956275, 77089521, 3973773121, 3444575871, 2448830231, 1305906550, 4021308739, 2857194700, 2516901860, 3518358430, 1787304780, 740276417, 1699839814, 1592394909, 2352307457, 2272556026, 188821243, 1729977011, 3687994002, 274084841, 3594982253, 3613494426, 2701949495, 4162096729, 322734571, 2837966542, 1640576439, 484830689, 1202797690, 3537852828, 4067639125, 349075736, 3342319475, 4157467219, 4255800159, 1030690015, 1155237496, 2951971274, 1757691577, 607398968, 2738905026, 499347990, 3794078908, 1011452712, 227885567, 2818666809, 213114376, 3034881240, 1455525988, 3414450555, 850817237, 1817998408, 3092726480],
Qe = [0, 235474187, 470948374, 303765277, 941896748, 908933415, 607530554, 708780849, 1883793496, 2118214995, 1817866830, 1649639237, 1215061108, 1181045119, 1417561698, 1517767529, 3767586992, 4003061179, 4236429990, 4069246893, 3635733660, 3602770327, 3299278474, 3400528769, 2430122216, 2664543715, 2362090238, 2193862645, 2835123396, 2801107407, 3035535058, 3135740889, 3678124923, 3576870512, 3341394285, 3374361702, 3810496343, 3977675356, 4279080257, 4043610186, 2876494627, 2776292904, 3076639029, 3110650942, 2472011535, 2640243204, 2403728665, 2169303058, 1001089995, 899835584, 666464733, 699432150, 59727847, 226906860, 530400753, 294930682, 1273168787, 1172967064, 1475418501, 1509430414, 1942435775, 2110667444, 1876241833, 1641816226, 2910219766, 2743034109, 2976151520, 3211623147, 2505202138, 2606453969, 2302690252, 2269728455, 3711829422, 3543599269, 3240894392, 3475313331, 3843699074, 3943906441, 4178062228, 4144047775, 1306967366, 1139781709, 1374988112, 1610459739, 1975683434, 2076935265, 1775276924, 1742315127, 1034867998, 866637845, 566021896, 800440835, 92987698, 193195065, 429456164, 395441711, 1984812685, 2017778566, 1784663195, 1683407248, 1315562145, 1080094634, 1383856311, 1551037884, 101039829, 135050206, 437757123, 337553864, 1042385657, 807962610, 573804783, 742039012, 2531067453, 2564033334, 2328828971, 2227573024, 2935566865, 2700099354, 3001755655, 3168937228, 3868552805, 3902563182, 4203181171, 4102977912, 3736164937, 3501741890, 3265478751, 3433712980, 1106041591, 1340463100, 1576976609, 1408749034, 2043211483, 2009195472, 1708848333, 1809054150, 832877231, 1068351396, 766945465, 599762354, 159417987, 126454664, 361929877, 463180190, 2709260871, 2943682380, 3178106961, 3009879386, 2572697195, 2538681184, 2236228733, 2336434550, 3509871135, 3745345300, 3441850377, 3274667266, 3910161971, 3877198648, 4110568485, 4211818798, 2597806476, 2497604743, 2261089178, 2295101073, 2733856160, 2902087851, 3202437046, 2968011453, 3936291284, 3835036895, 4136440770, 4169408201, 3535486456, 3702665459, 3467192302, 3231722213, 2051518780, 1951317047, 1716890410, 1750902305, 1113818384, 1282050075, 1584504582, 1350078989, 168810852, 67556463, 371049330, 404016761, 841739592, 1008918595, 775550814, 540080725, 3969562369, 3801332234, 4035489047, 4269907996, 3569255213, 3669462566, 3366754619, 3332740144, 2631065433, 2463879762, 2160117071, 2395588676, 2767645557, 2868897406, 3102011747, 3069049960, 202008497, 33778362, 270040487, 504459436, 875451293, 975658646, 675039627, 641025152, 2084704233, 1917518562, 1615861247, 1851332852, 1147550661, 1248802510, 1484005843, 1451044056, 933301370, 967311729, 733156972, 632953703, 260388950, 25965917, 328671808, 496906059, 1206477858, 1239443753, 1543208500, 1441952575, 2144161806, 1908694277, 1675577880, 1842759443, 3610369226, 3644379585, 3408119516, 3307916247, 4011190502, 3776767469, 4077384432, 4245618683, 2809771154, 2842737049, 3144396420, 3043140495, 2673705150, 2438237621, 2203032232, 2370213795],
We = [0, 185469197, 370938394, 487725847, 741876788, 657861945, 975451694, 824852259, 1483753576, 1400783205, 1315723890, 1164071807, 1950903388, 2135319889, 1649704518, 1767536459, 2967507152, 3152976349, 2801566410, 2918353863, 2631447780, 2547432937, 2328143614, 2177544179, 3901806776, 3818836405, 4270639778, 4118987695, 3299409036, 3483825537, 3535072918, 3652904859, 2077965243, 1893020342, 1841768865, 1724457132, 1474502543, 1559041666, 1107234197, 1257309336, 598438867, 681933534, 901210569, 1052338372, 261314535, 77422314, 428819965, 310463728, 3409685355, 3224740454, 3710368113, 3593056380, 3875770207, 3960309330, 4045380933, 4195456072, 2471224067, 2554718734, 2237133081, 2388260884, 3212035895, 3028143674, 2842678573, 2724322336, 4138563181, 4255350624, 3769721975, 3955191162, 3667219033, 3516619604, 3431546947, 3347532110, 2933734917, 2782082824, 3099667487, 3016697106, 2196052529, 2313884476, 2499348523, 2683765030, 1179510461, 1296297904, 1347548327, 1533017514, 1786102409, 1635502980, 2087309459, 2003294622, 507358933, 355706840, 136428751, 53458370, 839224033, 957055980, 605657339, 790073846, 2373340630, 2256028891, 2607439820, 2422494913, 2706270690, 2856345839, 3075636216, 3160175349, 3573941694, 3725069491, 3273267108, 3356761769, 4181598602, 4063242375, 4011996048, 3828103837, 1033297158, 915985419, 730517276, 545572369, 296679730, 446754879, 129166120, 213705253, 1709610350, 1860738147, 1945798516, 2029293177, 1239331162, 1120974935, 1606591296, 1422699085, 4148292826, 4233094615, 3781033664, 3931371469, 3682191598, 3497509347, 3446004468, 3328955385, 2939266226, 2755636671, 3106780840, 2988687269, 2198438022, 2282195339, 2501218972, 2652609425, 1201765386, 1286567175, 1371368976, 1521706781, 1805211710, 1620529459, 2105887268, 1988838185, 533804130, 350174575, 164439672, 46346101, 870912086, 954669403, 636813900, 788204353, 2358957921, 2274680428, 2592523643, 2441661558, 2695033685, 2880240216, 3065962831, 3182487618, 3572145929, 3756299780, 3270937875, 3388507166, 4174560061, 4091327024, 4006521127, 3854606378, 1014646705, 930369212, 711349675, 560487590, 272786309, 457992840, 106852767, 223377554, 1678381017, 1862534868, 1914052035, 2031621326, 1211247597, 1128014560, 1580087799, 1428173050, 32283319, 182621114, 401639597, 486441376, 768917123, 651868046, 1003007129, 818324884, 1503449823, 1385356242, 1333838021, 1150208456, 1973745387, 2125135846, 1673061617, 1756818940, 2970356327, 3120694122, 2802849917, 2887651696, 2637442643, 2520393566, 2334669897, 2149987652, 3917234703, 3799141122, 4284502037, 4100872472, 3309594171, 3460984630, 3545789473, 3629546796, 2050466060, 1899603969, 1814803222, 1730525723, 1443857720, 1560382517, 1075025698, 1260232239, 575138148, 692707433, 878443390, 1062597235, 243256656, 91341917, 409198410, 325965383, 3403100636, 3252238545, 3704300486, 3620022987, 3874428392, 3990953189, 4042459122, 4227665663, 2460449204, 2578018489, 2226875310, 2411029155, 3198115200, 3046200461, 2827177882, 2743944855],
Ke = [0, 218828297, 437656594, 387781147, 875313188, 958871085, 775562294, 590424639, 1750626376, 1699970625, 1917742170, 2135253587, 1551124588, 1367295589, 1180849278, 1265195639, 3501252752, 3720081049, 3399941250, 3350065803, 3835484340, 3919042237, 4270507174, 4085369519, 3102249176, 3051593425, 2734591178, 2952102595, 2361698556, 2177869557, 2530391278, 2614737639, 3145456443, 3060847922, 2708326185, 2892417312, 2404901663, 2187128086, 2504130317, 2555048196, 3542330227, 3727205754, 3375740769, 3292445032, 3876557655, 3926170974, 4246310725, 4027744588, 1808481195, 1723872674, 1910319033, 2094410160, 1608975247, 1391201670, 1173430173, 1224348052, 59984867, 244860394, 428169201, 344873464, 935293895, 984907214, 766078933, 547512796, 1844882806, 1627235199, 2011214180, 2062270317, 1507497298, 1423022939, 1137477952, 1321699145, 95345982, 145085239, 532201772, 313773861, 830661914, 1015671571, 731183368, 648017665, 3175501286, 2957853679, 2807058932, 2858115069, 2305455554, 2220981195, 2474404304, 2658625497, 3575528878, 3625268135, 3473416636, 3254988725, 3778151818, 3963161475, 4213447064, 4130281361, 3599595085, 3683022916, 3432737375, 3247465558, 3802222185, 4020912224, 4172763771, 4122762354, 3201631749, 3017672716, 2764249623, 2848461854, 2331590177, 2280796200, 2431590963, 2648976442, 104699613, 188127444, 472615631, 287343814, 840019705, 1058709744, 671593195, 621591778, 1852171925, 1668212892, 1953757831, 2037970062, 1514790577, 1463996600, 1080017571, 1297403050, 3673637356, 3623636965, 3235995134, 3454686199, 4007360968, 3822090177, 4107101658, 4190530515, 2997825956, 3215212461, 2830708150, 2779915199, 2256734592, 2340947849, 2627016082, 2443058075, 172466556, 122466165, 273792366, 492483431, 1047239e3, 861968209, 612205898, 695634755, 1646252340, 1863638845, 2013908262, 1963115311, 1446242576, 1530455833, 1277555970, 1093597963, 1636604631, 1820824798, 2073724613, 1989249228, 1436590835, 1487645946, 1337376481, 1119727848, 164948639, 81781910, 331544205, 516552836, 1039717051, 821288114, 669961897, 719700128, 2973530695, 3157750862, 2871682645, 2787207260, 2232435299, 2283490410, 2667994737, 2450346104, 3647212047, 3564045318, 3279033885, 3464042516, 3980931627, 3762502690, 4150144569, 4199882800, 3070356634, 3121275539, 2904027272, 2686254721, 2200818878, 2384911031, 2570832044, 2486224549, 3747192018, 3528626907, 3310321856, 3359936201, 3950355702, 3867060991, 4049844452, 4234721005, 1739656202, 1790575107, 2108100632, 1890328081, 1402811438, 1586903591, 1233856572, 1149249077, 266959938, 48394827, 369057872, 418672217, 1002783846, 919489135, 567498868, 752375421, 209336225, 24197544, 376187827, 459744698, 945164165, 895287692, 574624663, 793451934, 1679968233, 1764313568, 2117360635, 1933530610, 1343127501, 1560637892, 1243112415, 1192455638, 3704280881, 3519142200, 3336358691, 3419915562, 3907448597, 3857572124, 4075877127, 4294704398, 3029510009, 3113855344, 2927934315, 2744104290, 2159976285, 2377486676, 2594734927, 2544078150],
Xe = [0, 151849742, 303699484, 454499602, 607398968, 758720310, 908999204, 1059270954, 1214797936, 1097159550, 1517440620, 1400849762, 1817998408, 1699839814, 2118541908, 2001430874, 2429595872, 2581445614, 2194319100, 2345119218, 3034881240, 3186202582, 2801699524, 2951971274, 3635996816, 3518358430, 3399679628, 3283088770, 4237083816, 4118925222, 4002861748, 3885750714, 1002142683, 850817237, 698445255, 548169417, 529487843, 377642221, 227885567, 77089521, 1943217067, 2061379749, 1640576439, 1757691577, 1474760595, 1592394909, 1174215055, 1290801793, 2875968315, 2724642869, 3111247143, 2960971305, 2405426947, 2253581325, 2638606623, 2487810577, 3808662347, 3926825029, 4044981591, 4162096729, 3342319475, 3459953789, 3576539503, 3693126241, 1986918061, 2137062819, 1685577905, 1836772287, 1381620373, 1532285339, 1078185097, 1229899655, 1040559837, 923313619, 740276417, 621982671, 439452389, 322734571, 137073913, 19308535, 3871163981, 4021308739, 4104605777, 4255800159, 3263785589, 3414450555, 3499326569, 3651041127, 2933202493, 2815956275, 3167684641, 3049390895, 2330014213, 2213296395, 2566595609, 2448830231, 1305906550, 1155237496, 1607244650, 1455525988, 1776460110, 1626319424, 2079897426, 1928707164, 96392454, 213114376, 396673818, 514443284, 562755902, 679998e3, 865136418, 983426092, 3708173718, 3557504664, 3474729866, 3323011204, 4180808110, 4030667424, 3945269170, 3794078908, 2507040230, 2623762152, 2272556026, 2390325492, 2975484382, 3092726480, 2738905026, 2857194700, 3973773121, 3856137295, 4274053469, 4157467219, 3371096953, 3252932727, 3673476453, 3556361835, 2763173681, 2915017791, 3064510765, 3215307299, 2156299017, 2307622919, 2459735317, 2610011675, 2081048481, 1963412655, 1846563261, 1729977011, 1480485785, 1362321559, 1243905413, 1126790795, 878845905, 1030690015, 645401037, 796197571, 274084841, 425408743, 38544885, 188821243, 3613494426, 3731654548, 3313212038, 3430322568, 4082475170, 4200115116, 3780097726, 3896688048, 2668221674, 2516901860, 2366882550, 2216610296, 3141400786, 2989552604, 2837966542, 2687165888, 1202797690, 1320957812, 1437280870, 1554391400, 1669664834, 1787304780, 1906247262, 2022837584, 265905162, 114585348, 499347990, 349075736, 736970802, 585122620, 972512814, 821712160, 2595684844, 2478443234, 2293045232, 2174754046, 3196267988, 3079546586, 2895723464, 2777952454, 3537852828, 3687994002, 3234156416, 3385345166, 4142626212, 4293295786, 3841024952, 3992742070, 174567692, 57326082, 410887952, 292596766, 777231668, 660510266, 1011452712, 893681702, 1108339068, 1258480242, 1343618912, 1494807662, 1715193156, 1865862730, 1948373848, 2100090966, 2701949495, 2818666809, 3004591147, 3122358053, 2235061775, 2352307457, 2535604243, 2653899549, 3915653703, 3764988233, 4219352155, 4067639125, 3444575871, 3294430577, 3746175075, 3594982253, 836553431, 953270745, 600235211, 718002117, 367585007, 484830689, 133361907, 251657213, 2041877159, 1891211689, 1806599355, 1654886325, 1568718495, 1418573201, 1335535747, 1184342925];
function n(e) {
return parseInt(e) === e
}
function i(e) {
if (!n(e.length)) return !1;
for (var t = 0; t < e.length; t++)
if (!n(e[t]) || e[t] < 0 || 255 < e[t]) return !1;
return !0
}
function o(e, t?) {
if (e.buffer && "Uint8Array" === e.name) return t && (e = e.slice ? e.slice() : Array.prototype.slice.call(e)), e;
if (Array.isArray(e)) {
if (!i(e)) throw new Error("Array contains invalid value: " + e);
return new Uint8Array(e)
}
if (n(e.length) && i(e)) return new Uint8Array(e);
throw new Error("unsupported array-like object")
}
function s(e) {
for (var t = [], n = 0; n < e.length; n += 4) t.push(e[n] << 24 | e[n + 1] << 16 | e[n + 2] << 8 | e[n + 3]);
return t
}
function r(e) {
return new Uint8Array(e)
}
function a(e, t, n, i?, o?) {
null == i && null == o || (e = e.slice ? e.slice(i, o) : Array.prototype.slice.call(e, i, o)), t.set(e, n)
}
var Je;
Je = function e(t) {
if (!(this instanceof e)) throw Error("AES must be instanitated with new");
Object.defineProperty(this, "key", {
value: o(t, !0)
}), this._prepare()
};
Je.prototype._prepare = function () {
var e = Oe[this.key.length];
if (null == e) throw new Error("invalid key size (must be 16, 24 or 32 bytes)");
this._Ke = [], this._Kd = [];
for (var t = 0; t <= e; t++) this._Ke.push([0, 0, 0, 0]), this._Kd.push([0, 0, 0, 0]);
var n, i = 4 * (e + 1),
o = this.key.length / 4,
r = s(this.key);
for (t = 0; t < o; t++) n = t >> 2, this._Ke[n][t % 4] = r[t], this._Kd[e - n][t % 4] = r[t];
for (var a, l = 0, u = o; u < i;) {
if (a = r[o - 1], r[0] ^= je[a >> 16 & 255] << 24 ^ je[a >> 8 & 255] << 16 ^ je[255 & a] << 8 ^ je[a >> 24 & 255] ^ Ne[l] << 24, l += 1, 8 != o)
for (t = 1; t < o; t++) r[t] ^= r[t - 1];
else {
for (t = 1; t < o / 2; t++) r[t] ^= r[t - 1];
for (a = r[o / 2 - 1], r[o / 2] ^= je[255 & a] ^ je[a >> 8 & 255] << 8 ^ je[a >> 16 & 255] << 16 ^ je[a >> 24 & 255] << 24, t = o / 2 + 1; t < o; t++) r[t] ^= r[t - 1]
}
for (t = 0; t < o && u < i;) c = u >> 2, d = u % 4, this._Ke[c][d] = r[t], this._Kd[e - c][d] = r[t++], u++
}
for (var c = 1; c < e; c++)
for (var d = 0; d < 4; d++) a = this._Kd[c][d], this._Kd[c][d] = Qe[a >> 24 & 255] ^ We[a >> 16 & 255] ^ Ke[a >> 8 & 255] ^ Xe[255 & a]
}, Je.prototype.encrypt = function (e) {
if (16 != e.length) throw new Error("invalid plaintext size (must be 16 bytes)");
for (var t = this._Ke.length - 1, n = [0, 0, 0, 0], i = s(e), o = 0; o < 4; o++) i[o] ^= this._Ke[0][o];
for (var a = 1; a < t; a++) {
for (o = 0; o < 4; o++) n[o] = Be[i[o] >> 24 & 255] ^ Fe[i[(o + 1) % 4] >> 16 & 255] ^ ze[i[(o + 2) % 4] >> 8 & 255] ^ He[255 & i[(o + 3) % 4]] ^ this._Ke[a][o];
i = n.slice()
}
var l, u = r(16);
for (o = 0; o < 4; o++) l = this._Ke[t][o], u[4 * o] = 255 & (je[i[o] >> 24 & 255] ^ l >> 24), u[4 * o + 1] = 255 & (je[i[(o + 1) % 4] >> 16 & 255] ^ l >> 16), u[4 * o + 2] = 255 & (je[i[(o + 2) % 4] >> 8 & 255] ^ l >> 8), u[4 * o + 3] = 255 & (je[255 & i[(o + 3) % 4]] ^ l);
return u
}, Je.prototype.decrypt = function (e) {
if (16 != e.length) throw new Error("invalid ciphertext size (must be 16 bytes)");
for (var t = this._Kd.length - 1, n = [0, 0, 0, 0], i = s(e), o = 0; o < 4; o++) i[o] ^= this._Kd[0][o];
for (var a = 1; a < t; a++) {
for (o = 0; o < 4; o++) n[o] = Ye[i[o] >> 24 & 255] ^ Ve[i[(o + 3) % 4] >> 16 & 255] ^ qe[i[(o + 2) % 4] >> 8 & 255] ^ Ge[255 & i[(o + 1) % 4]] ^ this._Kd[a][o];
i = n.slice()
}
var l, u = r(16);
for (o = 0; o < 4; o++) l = this._Kd[t][o], u[4 * o] = 255 & (Ue[i[o] >> 24 & 255] ^ l >> 24), u[4 * o + 1] = 255 & (Ue[i[(o + 3) % 4] >> 16 & 255] ^ l >> 16), u[4 * o + 2] = 255 & (Ue[i[(o + 2) % 4] >> 8 & 255] ^ l >> 8), u[4 * o + 3] = 255 & (Ue[255 & i[(o + 1) % 4]] ^ l);
return u
};
var Ze = function e(t) {
if (!(this instanceof e)) throw Error("AES must be instanitated with new");
this.description = "Electronic Code Block", this.name = "ecb", this._aes = new Je(t)
};
Ze.prototype.encrypt = function (e) {
if ((e = o(e)).length % 16 != 0) throw new Error("invalid plaintext size (must be multiple of 16 bytes)");
for (var t = r(e.length), n = r(16), i = 0; i < e.length; i += 16) a(e, n, 0, i, i + 16), a(n = this._aes.encrypt(n), t, i);
return t
}, Ze.prototype.decrypt = function (e) {
if ((e = o(e)).length % 16 != 0) throw new Error("invalid ciphertext size (must be multiple of 16 bytes)");
for (var t = r(e.length), n = r(16), i = 0; i < e.length; i += 16) a(e, n, 0, i, i + 16), a(n = this._aes.decrypt(n), t, i);
return t
};
let et = null;
const decript = function (e, t) {
null != t && (et = new Ze(t)), et = et || new Ze(t);
var n = e.length,
i = n % 16;
if (i) {
var o = et.decrypt(e.subarray(0, n - i)),
r = e.subarray(n - i),
a = new Uint8Array(o.length + r.length);
return a.set(o, 0), a.set(r, o.length), a
}
return et.decrypt(e)
};
const Buffer = require("buffer").Buffer;
let tsProcess;
tsProcess = function () {
this._buffer = new Uint8Array(188);
this._pktLength = 0;
this.pmtPid = 0;
this.options = null;
this.streamCache = [];
this.streamList = [];
this.pktList = [];
}
tsProcess.prototype.init = function (options) {
this.options = options;
}
tsProcess.prototype.pktProcess = function (pktData) {
let pktSt = {
payloadUnitStartIndicator: false,
pid: 0,
pmtPid: 0,
};
let pktHeadOffset = 4;
pktSt.payloadUnitStartIndicator = !!(64 & pktData[1]);
pktSt.pid = 31 & pktData[1];
pktSt.pid <<= 8;
pktSt.pid |= pktData[2];
if (1 < (48 & pktData[3]) >>> 4)
pktHeadOffset += pktData[pktHeadOffset] + 1;
if (0 === pktSt.pid) {
let payLoadBuffer = pktData.subarray(pktHeadOffset);
let offset = 0;
if (pktSt.payloadUnitStartIndicator) {
offset += payLoadBuffer[offset] + 1
}
payLoadBuffer = payLoadBuffer.subarray(offset);
this.pmtPid = (31 & payLoadBuffer[10]) << 8 | payLoadBuffer[11];
this.pmtPid;
}
else if (pktSt.pid === this.pmtPid) {
}
else {
if (pktSt.payloadUnitStartIndicator) {
if (this.streamCache.length > 0) {
this.streamList.push(this.streamCache.slice(0));
this.streamCache = [];
}
}
this.streamCache.push({ head: pktData.subarray(0, pktHeadOffset), data: pktData.subarray(pktHeadOffset) });
return null;
}
return pktData;
};
tsProcess.prototype.decriptStream = function () {
for (let i in this.streamList) {
let _stream = this.streamList[i];
let streamData = _stream.map(_s => _s.data);
streamData = Buffer.concat(streamData);
let headOffset = 9 + streamData[8];
let decriptHead = streamData.subarray(0, headOffset);
streamData = decript(streamData.subarray(headOffset), this.options.decodeKey);
let _index = 0;
for (let j in _stream) {
let end = _index + _stream[j].data.byteLength;
if (j == "0") {
end -= headOffset;
_stream[j].decriptHead = decriptHead;
}
_stream[j].decriptData = streamData.subarray(_index, end);
_index = end;
}
}
}
tsProcess.prototype.genPkt = function () {
for (let i in this.streamList) {
let _stream = this.streamList[i];
for (let j in _stream) {
let pktData = null;
if (_stream[j].decriptHead) {
pktData = new Uint8Array(Buffer.concat([_stream[j].head, _stream[j].decriptHead, _stream[j].decriptData]));
} else {
pktData = new Uint8Array(Buffer.concat([_stream[j].head, _stream[j].decriptData]));
}
this.pktList.push(pktData);
}
}
}
tsProcess.prototype.go = function (dataBuffer) {
let _tsBuffer;
let _pktBegin = 0, _offset = 188;
_tsBuffer = new Uint8Array(dataBuffer);
for (; _offset < _tsBuffer.byteLength;) {
if (_tsBuffer[_pktBegin] !== 71 || _tsBuffer[_offset] != 71) {
_pktBegin++;
_offset++;
} else {
let pktData = this.pktProcess(_tsBuffer.subarray(_pktBegin, _offset));
if (pktData) this.pktList.push(pktData);
_pktBegin += 188;
_offset += 188;
}
}
if (_pktBegin < _tsBuffer.byteLength) {
this._buffer.set(_tsBuffer.subarray(_pktBegin), 0);
this._pktLength = _tsBuffer.byteLength - _pktBegin;
}
if (this._buffer[0] == 71 && this._pktLength === 188) {
this.pktProcess(this._buffer);
this.streamList.push(this.streamCache.slice(0));
this._pktLength = 0;
}
this.decriptStream();
this.genPkt();
this.streamList = [];
this.streamCache = [];
return Buffer.concat(this.pktList);
}
return tsProcess;
}
const tsProcess = ykDecript();
//获取文件状态
function getFileStat(path) {
return new Promise<any>((resolve, reject) => {
fse.stat(path, (err, stats) => {
if (err) {
reject(err);
} else {
resolve(stats);
}
})
})
}
//读取流
async function readStream(path) {
let fileStat = await getFileStat(path);
return new Promise((resolve, reject) => {
// 根据指定的文件创建一个可读流，得到一个可读流对象
let readStream = fse.createReadStream(path);
let fileData = new Uint8Array(fileStat.size);
let pos = 0;
readStream.on('data', (chunk) => {
for (let i = 0, len = chunk.length; i < len; i++) {
fileData[pos] = chunk[i];
pos++;
}
})
// end 事件监听读写结束
readStream.on('end', () => {
resolve(fileData);
})
});
}
function calFileDataByDecription(buffer, key) {
let _tsProcess = new tsProcess;
_tsProcess.init({ decodeKey: key });
return _tsProcess.go(buffer);
}
//写入流
async function writeStream(path, u8Array) {
let fd = await fse.open(path, 'w');
await fse.write(fd, u8Array);
await fse.close(fd);
}
function base64ToArray(base64) {
var binaryString = atob(base64)
var len = binaryString.length
var bytes = new Array(len)
for (var i = 0; i < len; i++) {
bytes[i] = binaryString.charCodeAt(i)
}
return bytes
}
process.on('message', async function (obj) {
let filePath = obj.path;
let key = obj.key;
let writePath = obj.writePath;
let fileName = obj.name;
try {
let _fileBuffer = await readStream(filePath);
let _decriptedData = await calFileDataByDecription(_fileBuffer, base64ToArray(key));
await writeStream(path.join(writePath, `${fileName}`), _decriptedData);
process.send(true);
} catch (error) {
console.log(error);
process.send(false);
}
});
export {};
另外附上我已经写好的下载器 https://gitee.com/niurow/m3u8Downloader
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吾爱游客
发表于 2020-3-28 16:26
发表于 2020-3-30 18:30
