KancolleSniffer/LogServer.cs

   1 // Copyright (C) 2014, 2015 Kazuhiro Fujieda <fujieda@users.sourceforge.jp>\r
   2 //\r
   3 // This program is part of KancolleSniffer.\r
   4 //\r
   5 // KancolleSniffer is free software: you can redistribute it and/or modify\r
   6 // it under the terms of the GNU General Public License as published by\r
   7 // the Free Software Foundation, either version 3 of the License, or\r
   8 // (at your option) any later version.\r
   9 //\r
  10 // This program is distributed in the hope that it will be useful,\r
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  13 // GNU General Public License for more details.\r
  14 //\r
  15 // You should have received a copy of the GNU General Public License\r
  16 // along with this program; if not, see <http://www.gnu.org/licenses/>.\r
  17 \r
  18 using System;\r
  19 using System.IO;\r
  20 using System.Linq;\r
  21 using System.Net;\r
  22 using System.Net.Sockets;\r
  23 using System.Text;\r
  24 using System.Threading;\r
  25 using System.Web;\r
  26 using System.Windows.Forms;\r
  27 \r
  28 namespace KancolleSniffer\r
  29 {\r
  30     public class LogServer\r
  31     {\r
  32         private readonly TcpListener _listener;\r
  33         private readonly string _indexDir = Path.GetDirectoryName(Application.ExecutablePath);\r
  34         private string _outputDir = Path.GetDirectoryName(Application.ExecutablePath);\r
  35 \r
  36         public string OutputDir\r
  37         {\r
  38             set { _outputDir = value; }\r
  39         }\r
  40 \r
  41         public LogServer(int port)\r
  42         {\r
  43             _listener = new TcpListener(IPAddress.Loopback, port);\r
  44         }\r
  45 \r
  46         public void Start()\r
  47         {\r
  48             _listener.Start();\r
  49             new Thread(Listen).Start();\r
  50         }\r
  51 \r
  52         private void Listen()\r
  53         {\r
  54             try\r
  55             {\r
  56                 while (true)\r
  57                 {\r
  58                     var socket = _listener.AcceptSocket();\r
  59                     new Thread(Process).Start(socket);\r
  60                 }\r
  61             }\r
  62             catch (SocketException)\r
  63             {\r
  64             }\r
  65             finally\r
  66             {\r
  67                 _listener.Stop();\r
  68             }\r
  69         }\r
  70 \r
  71         private void Process(Object obj)\r
  72         {\r
  73             var client = (Socket)obj;\r
  74             var data = new byte[4096];\r
  75             try\r
  76             {\r
  77                 if (client.Receive(data) == 0)\r
  78                     return;\r
  79                 var request = Encoding.UTF8.GetString(data).Split('\r')[0].Split(' ');\r
  80                 if (request.Length != 3)\r
  81                 {\r
  82                     SendError(client, "400 Bad Request");\r
  83                     return;\r
  84                 }\r
  85                 if (!request[0].StartsWith("GET", StringComparison.OrdinalIgnoreCase))\r
  86                 {\r
  87                     SendError(client, "501 Not Implemented");\r
  88                     return;\r
  89                 }\r
  90                 var path = HttpUtility.UrlDecode(request[1].Split('?')[0]);\r
  91                 if (path == null || !path.StartsWith("/"))\r
  92                 {\r
  93                     SendError(client, "400 Bad Request");\r
  94                     return;\r
  95                 }\r
  96 \r
  97                 path = path == "/" ? "index.html" : path.Substring(1);\r
  98                 var full = Path.Combine(_indexDir, path);\r
  99                 var csv = Path.Combine(_outputDir, path);\r
 100                 if (path.EndsWith(".html", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
 101                 {\r
 102                     SendFile(client, full, "text/html");\r
 103                     return;\r
 104                 }\r
 105                 if (path.EndsWith(".csv", StringComparison.OrdinalIgnoreCase) && File.Exists(csv))\r
 106                 {\r
 107                     SendFile(client, csv, "text/csv; charset=Shift_JIS");\r
 108                     return;\r
 109                 }\r
 110                 if (path.EndsWith(".json", StringComparison.OrdinalIgnoreCase))\r
 111                 {\r
 112                     SendJsonData(client, csv);\r
 113                     return;\r
 114                 }\r
 115                 if (path.EndsWith(".js", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
 116                 {\r
 117                     SendFile(client, full, "application/javascript");\r
 118                     return;\r
 119                 }\r
 120                 SendError(client, "404 Not Found");\r
 121             }\r
 122             catch (IOException)\r
 123             {\r
 124             }\r
 125             catch (SocketException)\r
 126             {\r
 127             }\r
 128             finally\r
 129             {\r
 130                 client.Close();\r
 131             }\r
 132         }\r
 133 \r
 134         private void SendError(Socket client, string error)\r
 135         {\r
 136             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 137             {\r
 138                 writer.Write("HTTP/1.1 {0}\r\n", error);\r
 139                 writer.Write("Server: KancolleSniffer\r\n");\r
 140                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 141                 writer.Write("Connection: close\r\n\r\n");\r
 142                 writer.Write("<html><head><title>{0}</title></head>\r\n", error);\r
 143                 writer.Write("<body><h4>{0}</h4></body></html>\r\n\r\n", error);\r
 144                 writer.Flush();\r
 145                 client.Send(((MemoryStream)writer.BaseStream).ToArray());\r
 146             }\r
 147         }\r
 148 \r
 149         private void SendJsonData(Socket client, string path)\r
 150         {\r
 151             var header = new StreamWriter(new MemoryStream(), Encoding.ASCII);\r
 152             header.Write("HTTP/1.1 200 OK\r\n");\r
 153             header.Write("Server: KancolleSniffer\r\n");\r
 154             header.Write("Date: {0:R}\r\n", DateTime.Now);\r
 155             header.Write("Content-Type: {0}\r\n", "application/json; charset=Shift_JIS");\r
 156             header.Write("Connection: close\r\n\r\n");\r
 157             header.Flush();\r
 158             client.Send(((MemoryStream)header.BaseStream).ToArray());\r
 159 \r
 160             var csv = path.Replace(".json", ".csv");\r
 161             var encoding = Encoding.GetEncoding("Shift_JIS");\r
 162             client.Send(encoding.GetBytes("{ \"data\": [\n"));\r
 163             if (File.Exists(csv))\r
 164             {\r
 165                 var delimiter = "";\r
 166                 var material = path.EndsWith("資材ログ.json"); // 末尾の空データを削除する必要がある\r
 167                 foreach (var line in File.ReadLines(csv, encoding).Skip(1))\r
 168                 {\r
 169                     var data = line.Split(',');\r
 170                     client.Send(encoding.GetBytes(delimiter + "[\"" + string.Join("\",\"", (material ? data.Take(9) : data)) + "\"]"));\r
 171                     delimiter = ",\n";\r
 172                 }\r
 173             }\r
 174             client.Send(encoding.GetBytes("]}\n"));\r
 175         }\r
 176 \r
 177         private void SendFile(Socket client, string path, string mime)\r
 178         {\r
 179             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 180             {\r
 181                 writer.Write("HTTP/1.1 200 OK\r\n");\r
 182                 writer.Write("Server: KancolleSniffer\r\n");\r
 183                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 184                 writer.Write("Content-Length: {0}\r\n", new FileInfo(path).Length);\r
 185                 writer.Write("Content-Type: {0}\r\n", mime);\r
 186                 writer.Write("Connection: close\r\n\r\n");\r
 187                 writer.Flush();\r
 188                 client.SendFile(path, ((MemoryStream)writer.BaseStream).ToArray(), null,\r
 189                     TransmitFileOptions.UseDefaultWorkerThread);\r
 190             }\r
 191         }\r
 192 \r
 193         public void Stop()\r
 194         {\r
 195             _listener.Server.Close();\r
 196         }\r
 197     }\r
 198 }