KancolleSniffer/LogServer.cs

   1 using System;\r
   2 using System.IO;\r
   3 using System.Linq;\r
   4 using System.Net;\r
   5 using System.Net.Sockets;\r
   6 using System.Text;\r
   7 using System.Threading;\r
   8 using System.Web;\r
   9 using System.Windows.Forms;\r
  10 \r
  11 namespace KancolleSniffer\r
  12 {\r
  13     public class LogServer\r
  14     {\r
  15         private readonly TcpListener _listener;\r
  16         private readonly Thread _thread;\r
  17         private readonly string _indexDir = Path.GetDirectoryName(Application.ExecutablePath);\r
  18         private string _outputDir = Path.GetDirectoryName(Application.ExecutablePath);\r
  19 \r
  20         public string OutputDir\r
  21         {\r
  22             set { _outputDir = value; }\r
  23         }\r
  24 \r
  25         public LogServer(int port)\r
  26         {\r
  27             _listener = new TcpListener(IPAddress.Loopback, port);\r
  28             _thread = new Thread(Listen);\r
  29         }\r
  30 \r
  31         public void Start()\r
  32         {\r
  33             _thread.Start();\r
  34         }\r
  35 \r
  36         private void Listen()\r
  37         {\r
  38             try\r
  39             {\r
  40                 _listener.Start();\r
  41                 while (true)\r
  42                 {\r
  43                     var data = new byte[4096];\r
  44                     var client = _listener.AcceptSocket();\r
  45                     try\r
  46                     {\r
  47                         if (client.Available == 0)\r
  48                         {\r
  49                             Thread.Sleep(500);\r
  50                             if (client.Available == 0)\r
  51                                 continue;\r
  52                         }\r
  53                         if (client.Receive(data) == 0)\r
  54                             continue;\r
  55                         var request = Encoding.UTF8.GetString(data).Split('\r')[0].Split(' ');\r
  56                         if (request.Length != 3)\r
  57                         {\r
  58                             SendError(client, "400 Bad Request");\r
  59                             continue;\r
  60                         }\r
  61                         if (!request[0].StartsWith("GET", StringComparison.OrdinalIgnoreCase))\r
  62                         {\r
  63                             SendError(client, "501 Not Implemented");\r
  64                             continue;\r
  65                         }\r
  66                         var path = HttpUtility.UrlDecode(request[1].Split('?')[0]);\r
  67                         if (path == null || !path.StartsWith("/"))\r
  68                         {\r
  69                             SendError(client, "400 Bad Request");\r
  70                             continue;\r
  71                         }\r
  72 \r
  73                         path = path == "/" ? "index.html" : path.Substring(1);\r
  74                         var full = Path.Combine(_indexDir, path);\r
  75                         var csv = Path.Combine(_outputDir, path);\r
  76                         if (path.EndsWith(".html", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
  77                         {\r
  78                             SendFile(client, full, "text/html");\r
  79                             continue;\r
  80                         }\r
  81                         if (path.EndsWith(".csv", StringComparison.OrdinalIgnoreCase) && File.Exists(csv))\r
  82                         {\r
  83                             SendFile(client, csv, "text/csv; charset=Shift_JIS");\r
  84                             continue;\r
  85                         }\r
  86                         if (path.EndsWith(".json", StringComparison.OrdinalIgnoreCase) &&\r
  87                             File.Exists(full.Replace(".json", ".csv")))\r
  88                         {\r
  89                             SendJsonData(client, full);\r
  90                             continue;\r
  91                         }\r
  92                         if (path.EndsWith(".js", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
  93                         {\r
  94                             SendFile(client, full, "application/javascript");\r
  95                             continue;\r
  96                         }\r
  97                         SendError(client, "404 Not Found");\r
  98                     }\r
  99                     catch (IOException)\r
 100                     {\r
 101                     }\r
 102                     catch (InvalidOperationException)\r
 103                     {\r
 104                     }\r
 105                     finally\r
 106                     {\r
 107                         client.Close();\r
 108                     }\r
 109                 }\r
 110             }\r
 111             catch (SocketException)\r
 112             {\r
 113             }\r
 114             finally\r
 115             {\r
 116                 _listener.Stop();\r
 117             }\r
 118         }\r
 119 \r
 120         private void SendError(Socket client, string error)\r
 121         {\r
 122             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 123             {\r
 124                 writer.Write("HTTP/1.1 {0}\r\n", error);\r
 125                 writer.Write("Server: KancolleSniffer\r\n");\r
 126                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 127                 writer.Write("Connection: close\r\n\r\n");\r
 128                 writer.Write("<html><head><title>{0}</title></head>\r\n", error);\r
 129                 writer.Write("<body><h4>{0}</h4></body></html>\r\n\r\n", error);\r
 130                 writer.Flush();\r
 131                 client.Send(((MemoryStream)writer.BaseStream).ToArray());\r
 132             }\r
 133         }\r
 134 \r
 135         private void SendJsonData(Socket client, string path)\r
 136         {\r
 137             var header = new StreamWriter(new MemoryStream(), Encoding.ASCII);\r
 138             header.Write("HTTP/1.1 200 OK\r\n");\r
 139             header.Write("Server: KancolleSniffer\r\n");\r
 140             header.Write("Date: {0:R}\r\n", DateTime.Now);\r
 141             header.Write("Content-Type: {0}\r\n", "application/json; charset=Shift_JIS");\r
 142             header.Write("Connection: close\r\n\r\n");\r
 143             header.Flush();\r
 144             client.Send(((MemoryStream)header.BaseStream).ToArray());\r
 145 \r
 146             var encoding = Encoding.GetEncoding("Shift_JIS");\r
 147             client.Send(encoding.GetBytes("{ \"data\": [\n"));\r
 148             var delimiter = "";\r
 149             foreach (var line in File.ReadLines(path.Replace(".json", ".csv"), encoding).Skip(1))\r
 150             {\r
 151                 client.Send(encoding.GetBytes(delimiter + "[\"" + string.Join("\",\"", line.Split(',')) + "\"]"));\r
 152                 delimiter = ",\n";\r
 153             }\r
 154             client.Send(encoding.GetBytes("]}\n"));\r
 155         }\r
 156 \r
 157         private void SendFile(Socket client, string path, string mime)\r
 158         {\r
 159             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 160             {\r
 161                 writer.Write("HTTP/1.1 200 OK\r\n");\r
 162                 writer.Write("Server: KancolleSniffer\r\n");\r
 163                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 164                 writer.Write("Content-Length: {0}\r\n", new FileInfo(path).Length);\r
 165                 writer.Write("Content-Type: {0}\r\n", mime);\r
 166                 writer.Write("Connection: close\r\n\r\n");\r
 167                 writer.Flush();\r
 168                 client.SendFile(path, ((MemoryStream)writer.BaseStream).ToArray(), null,\r
 169                     TransmitFileOptions.UseDefaultWorkerThread);\r
 170             }\r
 171         }\r
 172 \r
 173         public void Stop()\r
 174         {\r
 175             _listener.Stop();\r
 176             _thread.Join();\r
 177         }\r
 178     }\r
 179 }