挖掘视频网站【优酷】上被截断的视频的地址--002

上一篇博客（这里）寻找视频地址的时候，有些细节没有弄很清楚，这两天继续弄，发现原来路径里边的sid是个随机生成数，不需要找它。对于k值，现在的是服务器直接返回来的，而里边也有通过返回的json里边的key1计算获得：

PlayListProxy.as文件里边:

param1.key1 = (Number("0x" + param2.key1) ^ Number("0xA55AA5A5")).toString(16);

而关键之处是就剩下了那个fileid，这是我从它的播放器里边找到的源码：

        private function parseMainData(param1:PlayListData, param2:Object) : void{var _loc_5:String = null;//临时变量var _loc_9:String = null;//临时变量var _loc_10:String = null;//flv\mp4分段视频信息var _loc_11:Object = null;//streamfileidsvar _loc_12:String = null;var _loc_13:Array = null;var _loc_14:RandomProxy = null;var _loc_15:Dictionary = null;//segs里边几种视频类型的数据var _loc_16:String = null;//视频类型var _loc_17:int = 0;//临时变量，长度计数用var _loc_18:String = null;var _loc_19:Array = null;//存放视频数据var _loc_20:String = null;var _loc_21:Object = null;//临时变量var _loc_22:VideoSegmentData = null;//视频数据：no,size.type,seconds,k值if (param1 == null || param2 == null){return;}param1.drm = param2.drm;param1.rtmp = param2.rtmp;param1.ct = param2.ct;param1.show = this.parseShowData(param2.show);param1.programList = this.parseProgramListData(param2.list, param2.list_pre, param2.list_next);param1.dvdinfo = this.parseDVDData(param2.dvd);param1.trial = this.pareseTrialData(param2.trial);param1.caption = this.parseCaptionData(param2.dvd);param1.threeD = this.parseThreeDData(param2.dvd);param1.tt = param2.tt;param1.ct = param2.ct;param1.cs = param2.cs;param1.logo = param2.logo;param1.seed = Number(param2.seed);param1.tags = param2.tags;param1.categories = param2.categories;param1.videoId = String(param2.videoid);param1.vidEncoded = param2.vidEncoded;param1.userName = param2.username;param1.userId = param2.userid;param1.title = unescape(param2.title);param1.key1 = (Number("0x" + param2.key1) ^ Number("0xA55AA5A5")).toString(16);param1.key2 = param2.key2;param1.seconds = Number(param2.seconds);if (param2.sourceVid != null){param1.sourceVid = Number(param2.sourceVid);}param1.streamFileIds = param2.streamfileids;param1.segs = param2.segs;param1.streamSizes = param2.streamsizes;param1.streamTypes = param2.streamtypes;param1.error = param2.error;param1.errorlink = param2.link;param1.up = param2.up;param1.down = param2.down;if (param2.lastpoint){param1.lastpoint = Number(param2.lastpoint);}param1.token = param2.ts ? (param2.ts) : ("");var _loc_3:* = new HashCash();param1.hashcash = _loc_3.getHashCash(param1.token + "o");param1.tokenup = param2.tsup ? (param2.tsup) : ("");param1.hashcashup = _loc_3.getHashCash(param1.tokenup);param1.currentLang = "";if (param1.dvdinfo && param1.dvdinfo.audioLangs.length > 1){_loc_17 = 0;while (_loc_17 < param1.dvdinfo.audioLangs.length){if (param1.vidEncoded == param1.dvdinfo.audioLangs[_loc_17].vid || param1.videoId == param1.dvdinfo.audioLangs[_loc_17].vid){param1.currentLang = param1.dvdinfo.audioLangs[_loc_17].lang;param1.currentLangID = param1.dvdinfo.audioLangs[_loc_17].langid;}_loc_17++;}}var _loc_4:Array = [];//视频类型for (_loc_5 in param2.streamfileids){if (!this.isValidType(_loc_5)){continue;}_loc_4.push(_loc_5);}param1.typeArr = _loc_4;this._playListData.fileType = _loc_4[0];if (_loc_4.length > 1){}var _loc_6:Number = 0;var _loc_7:* = Number.MAX_VALUE;var _loc_8:* = param2.segs;for (_loc_9 in _loc_8){if (_loc_9 == "flv" || _loc_9 == "mp4" || _loc_9 == "flvhd" || _loc_9 == "hd2" || _loc_9 == "hd3"){_loc_6 = 0;for (_loc_18 in _loc_8[_loc_9]){_loc_6 = _loc_6 + Number(_loc_8[_loc_9][_loc_18].seconds);}if (_loc_6 < _loc_7){_loc_7 = _loc_6;}}}param1.totalTime = _loc_7;_loc_10 = "";_loc_11 = param2.streamfileids;for (_loc_12 in _loc_11){if (_loc_12 == param1.fileType){_loc_10 = _loc_11[_loc_12];break;}}_loc_13 = [];_loc_14 = new RandomProxy(param1.seed);_loc_15 = new Dictionary();for (_loc_16 in param2.segs){if (!this.isValidType(_loc_16)){continue;}_loc_19 = [];//_loc_16   --   flv//_loc_16   --   mp4//_loc_20   --   0,1,2,3for (_loc_20 in param2.segs[_loc_16]){_loc_21 = param2.segs[_loc_16][_loc_20];_loc_22 = new VideoSegmentData();_loc_22.no = _loc_21.no;_loc_22.size = _loc_21.size;_loc_22.seconds = _loc_21.seconds;if (_loc_21.k){_loc_22.key = _loc_21.k;}//streamfileids , mp4/flv , i , RandomProxy(param1.seed)_loc_22.fileId = this.getFileId(_loc_11, _loc_16, int(_loc_20), _loc_14);_loc_22.type = _loc_16;_loc_19.push(_loc_22);}_loc_15[_loc_16] = _loc_19;}param1.videoSegmentsDic = _loc_15;param1.watermarks = param2.streamlogos;if (param2.hasOwnProperty("paike")){param1.paike = param2.paike as Boolean;}else{param1.paike = false;}if (param2.hasOwnProperty("share")){param1.share = param2.share as Boolean;}else{param1.share = false;}param1.previews = this.parsePreviews(param2.preview);return;}// end function

里边的注释是我理解的备注，目前很疑惑的是这个：

_loc_22.fileId = this.getFileId(_loc_11, _loc_16, int(_loc_20), _loc_14);

知道它是计算fileId的关键代码，但是RandomProxy是什么结构的有人知道吗？为什么怎么搜索都找不到呢？

getFileId函数代码：

//streamfileids , mp4/flv , i , RandomProxy(param1.seed)private function getFileId(param1:Object, param2:String, param3:int, param4:RandomProxy) : String{var _loc_6:String = null;//mp4/flvvar _loc_5:String = "";//"66*59*66*66*66*9*66*30*66*66*57*66*53*47*47*67*11*3..........for (_loc_6 in param1){if (_loc_6 == param2){_loc_5 = param1[_loc_6];break;}}if (_loc_5 == ""){return "";}var _loc_7:String = "";var _loc_8:* = param4.cg_fun(_loc_5);var _loc_9:* = param4.cg_fun(_loc_5).slice(0, 8);var _loc_10:* = int(param3);var _loc_11:* = int(param3).toString(16);if (int(param3).toString(16).length == 1){_loc_11 = "0" + _loc_11;}_loc_11 = _loc_11.toUpperCase();var _loc_12:* = _loc_8.slice(10, _loc_8.length);_loc_7 = _loc_9 + _loc_11 + _loc_12;return _loc_7;}// end function

关键部分就是这个随机的函数cg_fun()是干什么的。

比如fileid是：0300080400510C15B61CF004ED56DCBD905FF1-B527-63DA-87D3-6C0D90F804E1

很显然，_loc_9得到的是前边8位，_loc_11得到的是中间两位，而_loc_12是通过函数cg_fun()得到的那个字符串出去前边被替换的10位的剩余字符串。

所有的核心就剩下这个函数了，一时间找不到办法解决，之后查了一下其他人做的方法，那些几乎都是以前的早起版本，但是现在依然可以用：

最新的优酷真实下载地址解析 http://blog.csdn.net/feige2008/article/details/8198434

优酷视频真实地址解析 http://blog.csdn.net/amor2006/article/details/7055902

记录一个获取fileid的脚本代码：

import time
import random
import math
def createSid():nowTime = int(time.time() *1000)random1 = random.randint(1000,1998)random2 = random.randint(1000,9999)return "%d%d%d" %(nowTime,random1,random2)def getFileIDMixString(seed):mixed=[]source=list("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\:._-1234567890")seed=float(seed)for i in range(len(source)):seed = (seed * 211 + 30031 ) % 65536index = math.floor(seed /65536 *len(source))mixed.append(source[int(index)])source.remove(source[int(index)])#return ''.join(mixed)return mixeddef getFileId(fileId,seed):mixed=getFileIDMixString(seed)ids=fileId.split('*')realId=[]for ch in ids:realId.append(mixed[int(ch)])return ''.join(realId)
if __name__ == '__main__':#print createSid()print getFileIDMixString(4528)fileId='49*48*49*49*49*12*49*5*49*49*1*42*49*16*42*1*32*11*42*16*55*49*49*5*63*38*1*11*38*16*32*38*19*49*1*55*55*42*64*32*1*2*23*64*11*48*38*15*64*12*23*38*48*64*11*16*49*38*19*49*55*12*49*5*63*42'seed=2034print getFileId(fileId,seed)

整体的源码：

test.html 使用的时候使用IE浏览器，其他的还在研究中

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>JSON</title></head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><script type="text/javascript">var xmlhttp;var message="";//本源码只能在IE浏览器或者IE模式下可以使用，因为ActiveXObject有足够的权限，而XMLHttpRequest不能跨域请求json//创建http 请求的对象function createxmlhttpRequest() {try {xmlhttp = new ActiveXObject("Msxml2.xmlhttp");} catch (e) {try {xmlhttp = new ActiveXObject("Microsoft.xmlhttp");} catch (e2) {xmlhttp = false;}}if (!xmlhttp && typeof XMLHttpRequest  != "udefined") {try {xmlhttp = new XMLHttpRequest ();} catch (e2) {xmlhttp = false;}}}//工具函数，删除一个字符串指定位置的字符function remove(str , index){if(str == null)return null;if(index < 0)return str;if(index < str.length){str=str.substring(0,index)+str.substring(index+1);return str;}else{return null;}}//通过seed计算得到解密的“种子”function getFileIDMixString(_seed){var  mixed           = [];var source            = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\\:._-1234567890";var seed           = parseFloat(_seed)+0.00;var source_length = source.length;for(var i = 0 ; i < source_length ; i ++){seed      = (seed * 211 + 30031) % 65536;var index  = Math.floor(seed /65536 * (source.length));index      = parseInt(index);mixed[i] = source.charAt(index);source = remove(source,index);}return mixed;}//通过上边的解密种子，将fileid解密function getFileId(fileId,seed){var mixed = getFileIDMixString(seed);var ids     = fileId.split('*');var realId   = [];for(var i = 0 ; i < ids.length ; i ++){if(ids[i] == "")breakrealId[i] = mixed[ids[i]];}return realId;}function getInfo(){createxmlhttpRequest();try {//实验方法：//找到一个优酷视频的链接:   http://v.youku.com/v_show/id_XMjQwOTM4NDQ4.html//将id后边的XMjQwOTM4NDQ4取出，连接成字符串：   http://v.youku.com/player/getPlayList/VideoIDS/XMjQwOTM4NDQ4xmlhttp.open("get", "http://v.youku.com/player/getPlayList/VideoIDS/XMjQwOTM4NDQ4", false);xmlhttp.onreadystatechange = returnInfo;xmlhttp.send(null);}catch(e){}}//回调函数，处理传回来的jsonfunction returnInfo(){if(xmlhttp.readyState == 4){var info = xmlhttp.responseText;eval("var json= " + info);var seed          = "";var title           = "";var streamtypes     = [];var streamfileids = [];var segs          = [];var   mixed           = [];var FileId            = [];var video         = [];var videorealurl  = [];seed          = json.data[0].seed;document.getElementById("seed").innerHTML = "随机种子: "+seed;//显示此时的随机种子mixed = getFileIDMixString(seed);title         += json.data[0].title;document.getElementById("title").innerHTML = "视频名字: "+title+"<br/>";//显示当前播放视频的名字streamtypes     = json.data[0].streamtypes;document.getElementById("streamtypes").innerHTML  = "视频格式: ";document.getElementById("streamfileids").innerHTML  = "加密的stream id: <br/>";document.getElementById("FileId").innerHTML          = "解密的stream id: <br/>";document.getElementById("video").innerHTML = "视频加密的K值:<br/>";for(var i = 0 ; i < streamtypes.length ; i ++){streamfileids[i]  = json.data[0].streamfileids[""+streamtypes[i]];document.getElementById("streamtypes").innerHTML +=" "+streamtypes[i];//显示当前视频可以选择的种类document.getElementById("streamfileids").innerHTML+=streamtypes[i]+": "+streamfileids[i]+"<br/>";//显示当前视频加密后的stream idFileId[i] = getFileId(streamfileids[i],seed);var temp_fileid = "";for(var j = 0 ; j < FileId[i].length ; j ++){temp_fileid += FileId[i][j];}FileId[i] = temp_fileid;document.getElementById("FileId").innerHTML += streamtypes[i]+": FileId: "+FileId[i]+"<br/>";//显示当前播放视频的名字document.getElementById("video").innerHTML += streamtypes[i]+" :<br/>";segs = json.data[0].segs[""+streamtypes[i]];var url  = [];for(var j = 0 ; j < segs.length ; j ++){document.getElementById("video").innerHTML += segs[j].k+"<br/>";//显示当前播放视频的名字//http://f.youku.com/player/getFlvPath/sid/138846963736713671615_00/st/flv/fileid/url[j] = "http://f.youku.com/player/getFlvPath/sid/00_00/st/";//基本路径url[j]+= streamtypes[i];//视频类型temp_fileid = FileId[i];if(j < 16)temp_fileid = temp_fileid.substring(0,8)+"0"+parseInt(j).toString(16)+temp_fileid.substring(10);elsetemp_fileid = temp_fileid.substring(0,8)+parseInt(j).toString(16)+temp_fileid.substring(10);url[j]+= "/fileid/"+temp_fileid;//增加file的idurl[j]+= "?K="+segs[j].k;//增加K值验证document.getElementById("videorealurl").innerHTML += j+": <a href=\""+url[j]+"\">"+url[j]+"</a><br/>";//显示当前播放视频的名字}videorealurl[i] = url;}}}</script><body><br/><br/><h2 style="color: red;">JSON</h2><br/><input type="button" value="JSON" οnclick="getInfo()" /><table><tr><td><div id="test"></div></td></tr><tr><td><div id="seed"></div></td></tr><tr><td><span id="title"><span></td></tr><tr><td><span id="streamtypes"><span></td></tr><tr><td><span id="streamfileids"><span></td></tr><tr><td><span id="FileIDMixString"><span></td></tr><tr><td><span id="FileId"><span></td></tr><tr><td><span id="video"><span></td></tr><tr><td><span id="videorealurl"><span></td></tr></table></body>
</html>

实验结果：

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