优化MPD下载行为

N_m3u8DL-CLI/DecodeHuke88Key.cs

@@ -0,0 +1,53 @@
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace N_m3u8DL_CLI
+{
+    //https://js.huke88.com/assets/revision/js/plugins/tcplayer/tcplayer.v4.1.min.js?v=930
+    //https://js.huke88.com/assets/revision/js/plugins/tcplayer/libs/hls.min.0.13.2m.js?v=930
+    class DecodeHuke88Key
+    {
+        private static string[] GetOverlayInfo(string url)
+        {
+            var enc = new Regex("eyJ\\w{100,}").Match(url).Value;
+            var json = Encoding.UTF8.GetString(Convert.FromBase64String(enc));
+            JObject jObject = JObject.Parse(json);
+            var key = jObject["overlayKey"].ToString();
+            var iv = jObject["overlayIv"].ToString();
+            return new string[] { key, iv };
+        }
+
+        public static string DecodeKey(string url, byte[] data)
+        {
+            var info = GetOverlayInfo(url);
+            var overlayKey = info[0];
+            var overlayIv = info[1];
+            var l = new List<byte>();
+            var c = new List<byte>();
+            for (int h = 0; h < 16; h++)
+            {
+                var f = overlayKey.Substring(2 * h, 2);
+                var g = overlayIv.Substring(2 * h, 2);
+                l.Add(Convert.ToByte(f, 16));
+                c.Add(Convert.ToByte(g, 16));
+            }
+
+            var _lastCipherblock = c.ToArray();
+
+            var t = new byte[data.Length];
+            var r = data;
+            r = Decrypter.AES128Decrypt(data, l.ToArray(), Decrypter.HexStringToBytes("00000000000000000000000000000000"), CipherMode.CBC, PaddingMode.Zeros);
+
+            for (var o = 0; o < 16; o++)
+                t[o] = (byte)(r[o] ^ _lastCipherblock[o]);
+
+            var key = Convert.ToBase64String(t);
+
+            return key;
+        }
+    }
+}

N_m3u8DL-CLI/Decrypter.cs

@@ -1,16 +1,12 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 using System.Security.Cryptography;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace N_m3u8DL_CLI
 {
     class Decrypter
     {
-        public static byte[] AES128Decrypt(string filePath, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC)
+        public static byte[] AES128Decrypt(string filePath, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
         {
             FileStream fs = new FileStream(filePath, FileMode.Open);
             //获取文件大小
@@ -25,14 +21,14 @@ namespace N_m3u8DL_CLI
             dcpt.Key = keyByte;
             dcpt.IV = ivByte;
             dcpt.Mode = mode;
-            dcpt.Padding = PaddingMode.PKCS7;
+            dcpt.Padding = padding;
 
             ICryptoTransform cTransform = dcpt.CreateDecryptor();
             Byte[] resultArray = cTransform.TransformFinalBlock(inBuff, 0, inBuff.Length);
             return resultArray;
         }
 
-        public static byte[] AES128Decrypt(byte[] encryptedBuff, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC)
+        public static byte[] AES128Decrypt(byte[] encryptedBuff, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
         {
             byte[] inBuff = encryptedBuff;
 
@@ -42,7 +38,7 @@ namespace N_m3u8DL_CLI
             dcpt.Key = keyByte;
             dcpt.IV = ivByte;
             dcpt.Mode = mode;
-            dcpt.Padding = PaddingMode.PKCS7;
+            dcpt.Padding = padding;
 
             ICryptoTransform cTransform = dcpt.CreateDecryptor();
             Byte[] resultArray = cTransform.TransformFinalBlock(inBuff, 0, inBuff.Length);
@@ -56,7 +52,7 @@ namespace N_m3u8DL_CLI
                 return new byte[0];
             }
 
-            if (hexStr.StartsWith("0x") || hexStr.StartsWith("0X")) 
+            if (hexStr.StartsWith("0x") || hexStr.StartsWith("0X"))
             {
                 hexStr = hexStr.Remove(0, 2);
             }

N_m3u8DL-CLI/Global.cs

@@ -32,7 +32,7 @@ namespace N_m3u8DL_CLI
         /*===============================================================================*/
         static Version ver = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
         static string nowVer = $"{ver.Major}.{ver.Minor}.{ver.Build}";
-        static string nowDate = "20201206";
+        static string nowDate = "20210118";
         public static void WriteInit()
         {
             Console.Clear();

N_m3u8DL-CLI/MPDParser.cs

@@ -61,14 +61,18 @@ namespace N_m3u8DL_CLI
 
             void ExtractInitialization(XmlNode source)
             {
-                var initialization = source.SelectSingleNode("//ns:Initialization", nsMgr);
+                var initialization = source.SelectSingleNode("ns:Initialization", nsMgr);
                 if (initialization != null)
                 {
                     MultisegmentInfo["InitializationUrl"] = ((XmlElement)initialization).GetAttribute("sourceURL");
+                    if (((XmlElement)initialization).HasAttribute("range"))
+                    {
+                        MultisegmentInfo["InitializationUrl"] += "$$Range=" + ((XmlElement)initialization).GetAttribute("range");
+                    }
                 }
             }
 
-            var segmentList = Period.SelectSingleNode("//ns:SegmentList", nsMgr);
+            var segmentList = Period.SelectSingleNode("ns:SegmentList", nsMgr);
             if (segmentList != null)
             {
                 ExtractCommon(segmentList);
@@ -77,7 +81,14 @@ namespace N_m3u8DL_CLI
                 MultisegmentInfo["SegmentUrls"] = new List<string>();
                 foreach (XmlElement segment in segmentUrlsE)
                 {
-                    MultisegmentInfo["SegmentUrls"].Add(segment.GetAttribute("media"));
+                    if (segment.HasAttribute("mediaRange"))
+                    {
+                        MultisegmentInfo["SegmentUrls"].Add("$$Range=" + segment.GetAttribute("mediaRange"));
+                    }
+                    else
+                    {
+                        MultisegmentInfo["SegmentUrls"].Add(segment.GetAttribute("media"));
+                    }
                 }
             }
             else
@@ -116,6 +127,10 @@ namespace N_m3u8DL_CLI
         /// <returns></returns>
         public static string Parse(string downDir, string mpdUrl, string mpdContent, string defaultBase = "")
         {
+            //XiGua
+            if (mpdContent.Contains("<mas:") && !mpdContent.Contains("xmlns:mas"))
+                mpdContent = mpdContent.Replace("<MPD ", "<MPD xmlns:mas=\"urn:marlin:mas:1-0:services:schemas:mpd\" ");
+
             XmlDocument mpdDoc = new XmlDocument();
             mpdDoc.LoadXml(mpdContent);
 
@@ -208,6 +223,7 @@ namespace N_m3u8DL_CLI
                             var bandwidth = IntOrNull(GetAttribute("bandwidth"));
                             var f = new Dictionary<string, dynamic>
                             {
+                                ["ContentType"] = contentType,
                                 ["FormatId"] = representationId,
                                 ["ManifestUrl"] = mpdUrl,
                                 ["Width"] = IntOrNull(GetAttribute("width")),
@@ -432,6 +448,10 @@ namespace N_m3u8DL_CLI
                                 if (representationMsInfo.ContainsKey("InitializationUrl"))
                                 {
                                     f["InitializationUrl"] = representationMsInfo["InitializationUrl"];
+                                    if (f["InitializationUrl"].StartsWith("$$Range"))
+                                    {
+                                        f["InitializationUrl"] = CombineURL(baseUrl, f["InitializationUrl"]);
+                                    }
                                     f["Fragments"] = representationMsInfo["Fragments"];
                                 }
                             }
@@ -447,7 +467,23 @@ namespace N_m3u8DL_CLI
                                 };
                             }
 
-                            formatList.Add(f);
+                            //处理同一ID分散在不同Period的情况
+                            if (formatList.Any(_f => _f["FormatId"] == f["FormatId"] && _f["Width"] == f["Width"] && _f["ContentType"] == f["ContentType"]))
+                            {
+                                for (int i = 0; i < formatList.Count; i++)
+                                {
+                                    if (formatList[i]["FormatId"] == f["FormatId"] && formatList[i]["Width"] == f["Width"] && formatList[i]["ContentType"] == f["ContentType"])
+                                    {
+                                        formatList[i]["Fragments"].AddRange(f["Fragments"]);
+                                        break;
+                                    }
+                                }
+                            }
+                            else
+                            {
+                                formatList.Add(f);
+                            }
+
                         }
                     }
                 }
@@ -466,14 +502,14 @@ namespace N_m3u8DL_CLI
             var audioLangList = new List<string>();
             formatList.ForEach(f =>
             {
-                if (f["Width"] == -1 && !audioLangList.Contains(f["Language"])) audioLangList.Add(f["Language"]);
+                if (f["ContentType"] == "audio" && !audioLangList.Contains(f["Language"])) audioLangList.Add(f["Language"]);
             });
 
             if (audioLangList.Count > 1)
             {
                 string Stringify(Dictionary<string, dynamic> f)
                 {
-                    var type = f["Width"] == -1 && f["Height"] == -1 ? "Audio" : "Video";
+                    var type = f["ContentType"] == "aduio" ? "Audio" : "Video";
                     var res = type == "Video" ? $"[{f["Width"]}x{f["Height"]}]" : "";
                     var id = $"[{f["FormatId"]}] ";
                     var tbr = $"[{((int)f["Tbr"]).ToString().PadLeft(4)} Kbps] ";
@@ -503,7 +539,7 @@ namespace N_m3u8DL_CLI
                     {
                         var n = 0;
                         int.TryParse(index, out n);
-                        if (formatList[n]["Width"] == -1)
+                        if (formatList[n]["ContentType"] == "audio")
                         {
                             bestAudio = formatList[n];
                         }
@@ -605,7 +641,7 @@ namespace N_m3u8DL_CLI
             sb.AppendLine("#CREATED-BY:N_m3u8DL-CLI");
 
             //Video
-            if (f["Width"] != -1 && f["Height"] != -1)
+            if (f["ContentType"] != "audio")
             {
                 sb.AppendLine($"#EXT-VIDEO-WIDTH:{f["Width"]}");
                 sb.AppendLine($"#EXT-VIDEO-HEIGHT:{f["Height"]}");
@@ -615,7 +651,19 @@ namespace N_m3u8DL_CLI
             sb.AppendLine($"#EXT-TBR:{f["Tbr"]}");
             if (f.ContainsKey("InitializationUrl"))
             {
-                sb.AppendLine($"#EXT-X-MAP:URI=\"{f["InitializationUrl"]}\"");
+                string initUrl = f["InitializationUrl"];
+                if (Regex.IsMatch(initUrl, "\\$\\$Range=(\\d+)-(\\d+)"))
+                {
+                    var match = Regex.Match(initUrl, "\\$\\$Range=(\\d+)-(\\d+)");
+                    string rangeStr = match.Value;
+                    long start = Convert.ToInt64(match.Groups[1].Value);
+                    long end = Convert.ToInt64(match.Groups[2].Value);
+                    sb.AppendLine($"#EXT-X-MAP:URI=\"{initUrl.Replace(rangeStr, "")}\",BYTERANGE=\"{end}@{start}\"");
+                }
+                else
+                {
+                    sb.AppendLine($"#EXT-X-MAP:URI=\"{initUrl}\"");
+                }
             }
             sb.AppendLine("#EXT-X-KEY:METHOD=PLZ-KEEP-RAW,URI=\"None\""); //使下载器使用二进制合并
 
@@ -625,7 +673,19 @@ namespace N_m3u8DL_CLI
                 var dur = seg.ContainsKey("duration") ? seg["duration"] : 0.0;
                 var url = seg.ContainsKey("url") ? seg["url"] : seg["path"];
                 sb.AppendLine($"#EXTINF:{dur.ToString("0.00")}");
-                sb.AppendLine(url);
+                if (Regex.IsMatch(url, "\\$\\$Range=(\\d+)-(\\d+)"))
+                {
+                    var match = Regex.Match(url, "\\$\\$Range=(\\d+)-(\\d+)");
+                    string rangeStr = match.Value;
+                    long start = Convert.ToInt64(match.Groups[1].Value);
+                    long end = Convert.ToInt64(match.Groups[2].Value);
+                    sb.AppendLine($"#EXT-X-BYTERANGE:{end + 1 - start}@{start}");
+                    sb.AppendLine(url.Replace(rangeStr, ""));
+                }
+                else
+                {
+                    sb.AppendLine(url);
+                }
             }
 
             sb.AppendLine("#EXT-X-ENDLIST");
@@ -637,17 +697,19 @@ namespace N_m3u8DL_CLI
         {
             var best = new Dictionary<string, dynamic>() { ["Tbr"] = 0 };
             var bandwidth = best["Tbr"];
+            var width = 0;
 
             foreach (var f in fs)
             {
                 var w = f["Width"];
                 var h = f["Height"];
-                if (w != -1 && h != -1)
+                if (f["ContentType"] == "video")
                 {
-                    if (f["Tbr"] > bandwidth)
+                    if (f["Tbr"] > bandwidth && w > width)
                     {
                         best = f;
                         bandwidth = f["Tbr"];
+                        width = w;
                     }
                 }
             }
@@ -662,9 +724,7 @@ namespace N_m3u8DL_CLI
 
             foreach (var f in fs)
             {
-                var w = f["Width"];
+                if (f["ContentType"] == "audio")
-                var h = f["Height"];
-                if (w == -1 && h == -1)
                 {
                     if (f["Tbr"] > bandwidth)
                     {
@@ -709,6 +769,10 @@ namespace N_m3u8DL_CLI
         /// <returns></returns>
         static string CombineURL(string baseurl, string url)
         {
+            if (url.StartsWith("$$Range"))
+            {
+                return baseurl + url;
+            }
             Uri uri1 = new Uri(baseurl);
             Uri uri2 = new Uri(uri1, url);
             url = uri2.ToString();

N_m3u8DL-CLI/N_m3u8DL-CLI.csproj

@@ -70,6 +70,7 @@
     <Compile Include="CommandLineArgumentParser.cs" />
     <Compile Include="Decode51CtoKey.cs" />
     <Compile Include="DecodeDdyun.cs" />
+    <Compile Include="DecodeHuke88Key.cs" />
     <Compile Include="DecodeImooc.cs" />
     <Compile Include="DecodeNfmovies.cs" />
     <Compile Include="Decrypter.cs" />

N_m3u8DL-CLI/Parser.cs

@@ -748,6 +748,22 @@ namespace N_m3u8DL_CLI
                         {
                             key[1] = DecodeImooc.DecodeKey(Global.GetWebSource(key[1], Headers));
                         }
+                        else if (key[1] == "https://hls.ventunotech.com/m3u8/pc_videosecurevtnkey.key")
+                        {
+                            string temp = Global.GetWebSource(keyUrl, Headers);
+                            LOGGER.PrintLine(temp);
+                            byte[] tempKey = new byte[16];
+                            for (int d = 0; d < 16; d++)
+                            {
+                                tempKey[d] = Convert.ToByte(temp.Substring(2 * d, 2), 16);
+                            }
+                            key[1] = Convert.ToBase64String(tempKey);
+                        }
+                        else if (key[1].Contains("drm.vod2.myqcloud.com/getlicense"))
+                        {
+                            var temp = Global.HttpDownloadFileToBytes(keyUrl, Headers);
+                            key[1] = DecodeHuke88Key.DecodeKey(key[1], temp);
+                        }
                         else
                         {
                             if (keyUrl.Contains("https://keydeliver.linetv.tw/jurassicPark"))  //linetv

N_m3u8DL-CLI/changelog.txt

@@ -301,4 +301,11 @@
 2020年12月2日
   - FIX Language Bug
 2020年12月6日
-  - 使用手机UA请求气球云密钥服务器
+  - 使用手机UA请求气球云密钥服务器
+2020年12月12日
+  - 修复MPD下同一个ID分散在不同Period导致下载不完全问题
+2020年12月20日
+  - 支持解密虎课网
+2021年1月18日
+  - 完善MPD下载相关
+  - 重新打包多语言资源