KancolleSniffer/LogServer.cs

   1 // Copyright (C) 2014, 2015 Kazuhiro Fujieda <fujieda@users.osdn.me>\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.Globalization;\r
  20 using System.IO;\r
  21 using System.Linq;\r
  22 using System.Net;\r
  23 using System.Net.Sockets;\r
  24 using System.Text;\r
  25 using System.Threading;\r
  26 using System.Web;\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 = AppDomain.CurrentDomain.BaseDirectory;\r
  34         private string _outputDir = AppDomain.CurrentDomain.BaseDirectory;\r
  35 \r
  36         public int Port { get; private set; }\r
  37 \r
  38         public bool IsListening { get; private set; }\r
  39 \r
  40         public string OutputDir\r
  41         {\r
  42             set { _outputDir = value; }\r
  43         }\r
  44 \r
  45         public LogServer(int port)\r
  46         {\r
  47             _listener = new TcpListener(IPAddress.Loopback, port);\r
  48         }\r
  49 \r
  50         public void Start()\r
  51         {\r
  52             _listener.Start();\r
  53             Port = ((IPEndPoint)_listener.LocalEndpoint).Port;\r
  54             IsListening = true;\r
  55             new Thread(Listen).Start();\r
  56         }\r
  57 \r
  58         private void Listen()\r
  59         {\r
  60             try\r
  61             {\r
  62                 while (true)\r
  63                 {\r
  64                     var socket = _listener.AcceptSocket();\r
  65                     new Thread(Process).Start(socket);\r
  66                 }\r
  67             }\r
  68             catch (SocketException)\r
  69             {\r
  70             }\r
  71             finally\r
  72             {\r
  73                 _listener.Stop();\r
  74             }\r
  75         }\r
  76 \r
  77         private void Process(Object obj)\r
  78         {\r
  79             var client = (Socket)obj;\r
  80             var data = new byte[4096];\r
  81             var from = DateTime.MinValue;\r
  82             var to = DateTime.MaxValue;\r
  83             try\r
  84             {\r
  85                 if (client.Receive(data) == 0)\r
  86                     return;\r
  87                 var request = Encoding.UTF8.GetString(data).Split('\r')[0].Split(' ');\r
  88                 if (request.Length != 3)\r
  89                 {\r
  90                     SendError(client, "400 Bad Request");\r
  91                     return;\r
  92                 }\r
  93                 if (!request[0].StartsWith("GET", StringComparison.OrdinalIgnoreCase))\r
  94                 {\r
  95                     SendError(client, "501 Not Implemented");\r
  96                     return;\r
  97                 }\r
  98                 var tmp = request[1].Split('?');\r
  99                 var path = HttpUtility.UrlDecode(tmp[0]);\r
 100                 if (path == null || !path.StartsWith("/"))\r
 101                 {\r
 102                     SendError(client, "400 Bad Request");\r
 103                     return;\r
 104                 }\r
 105                 if (tmp.Length == 2)\r
 106                 {\r
 107                     var query = HttpUtility.ParseQueryString(tmp[1]);\r
 108                     if (query["from"] != null)\r
 109                     {\r
 110                         double tick;\r
 111                         double.TryParse(query["from"], out tick);\r
 112                         from = new DateTime(1970, 1, 1).ToLocalTime().AddSeconds(tick / 1000);\r
 113                     }\r
 114                     if (query["to"] != null)\r
 115                     {\r
 116                         double tick;\r
 117                         double.TryParse(query["to"], out tick);\r
 118                         to = new DateTime(1970, 1, 1).ToLocalTime().AddSeconds(tick / 1000);\r
 119                     }\r
 120                 }\r
 121 \r
 122                 path = path == "/" ? "index.html" : path.Substring(1);\r
 123                 var full = Path.Combine(_indexDir, path);\r
 124                 var csv = Path.Combine(_outputDir, path);\r
 125                 if (path.EndsWith(".html", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
 126                 {\r
 127                     SendFile(client, full, "text/html");\r
 128                     return;\r
 129                 }\r
 130                 if (path.EndsWith(".csv", StringComparison.OrdinalIgnoreCase) && File.Exists(csv))\r
 131                 {\r
 132                     SendFile(client, csv, "text/csv; charset=Shift_JIS");\r
 133                     return;\r
 134                 }\r
 135                 if (path.EndsWith(".json", StringComparison.OrdinalIgnoreCase))\r
 136                 {\r
 137                     SendJsonData(client, csv, from, to);\r
 138                     return;\r
 139                 }\r
 140                 if (path.EndsWith(".js", StringComparison.OrdinalIgnoreCase) && File.Exists(full))\r
 141                 {\r
 142                     SendFile(client, full, "application/javascript");\r
 143                     return;\r
 144                 }\r
 145                 SendError(client, "404 Not Found");\r
 146             }\r
 147             catch (IOException)\r
 148             {\r
 149             }\r
 150             catch (SocketException)\r
 151             {\r
 152             }\r
 153             finally\r
 154             {\r
 155                 client.Close();\r
 156             }\r
 157         }\r
 158 \r
 159         private void SendError(Socket client, string error)\r
 160         {\r
 161             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 162             {\r
 163                 writer.Write("HTTP/1.1 {0}\r\n", error);\r
 164                 writer.Write("Server: KancolleSniffer\r\n");\r
 165                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 166                 writer.Write("Connection: close\r\n\r\n");\r
 167                 writer.Write("<html><head><title>{0}</title></head>\r\n", error);\r
 168                 writer.Write("<body><h4>{0}</h4></body></html>\r\n\r\n", error);\r
 169                 writer.Flush();\r
 170                 client.Send(((MemoryStream)writer.BaseStream).ToArray());\r
 171             }\r
 172         }\r
 173 \r
 174         private void SendJsonData(Socket client, string path, DateTime from, DateTime to)\r
 175         {\r
 176             var header = new StreamWriter(new MemoryStream(), Encoding.ASCII);\r
 177             header.Write("HTTP/1.1 200 OK\r\n");\r
 178             header.Write("Server: KancolleSniffer\r\n");\r
 179             header.Write("Date: {0:R}\r\n", DateTime.Now);\r
 180             header.Write("Content-Type: {0}\r\n", "application/json; charset=Shift_JIS");\r
 181             header.Write("Connection: close\r\n\r\n");\r
 182             header.Flush();\r
 183             client.Send(((MemoryStream)header.BaseStream).ToArray());\r
 184 \r
 185             var csv = path.Replace(".json", ".csv");\r
 186             var encoding = Encoding.GetEncoding("Shift_JIS");\r
 187             client.Send(encoding.GetBytes("{ \"data\": [\n"));\r
 188             try\r
 189             {\r
 190                 if (File.Exists(csv))\r
 191                 {\r
 192                     var delimiter = "";\r
 193                     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
 194                     foreach (var line in File.ReadLines(csv, encoding).Skip(1))\r
 195                     {\r
 196                         var data = line.Split(',');\r
 197                         DateTime date;\r
 198                         if (!DateTime.TryParseExact(data[0], Logger.DateTimeFormat, CultureInfo.InvariantCulture,\r
 199                             DateTimeStyles.AssumeLocal, out date) &&\r
 200                             DateTime.TryParse(data[0], CultureInfo.CurrentCulture, DateTimeStyles.AssumeLocal, out date))\r
 201                         {\r
 202                             data[0] = date.ToString(Logger.DateTimeFormat);\r
 203                         }\r
 204                         if (date < from || to < date)\r
 205                             continue;\r
 206                         client.Send(encoding.GetBytes(delimiter + "[\"" +\r
 207                                                       string.Join("\",\"", (material ? data.Take(9) : data)) + "\"]"));\r
 208                         delimiter = ",\n";\r
 209                     }\r
 210                 }\r
 211             }\r
 212             finally\r
 213             {\r
 214                 client.Send(encoding.GetBytes("]}\n"));\r
 215             }\r
 216         }\r
 217 \r
 218         private void SendFile(Socket client, string path, string mime)\r
 219         {\r
 220             using (var writer = new StreamWriter(new MemoryStream(), Encoding.ASCII))\r
 221             {\r
 222                 writer.Write("HTTP/1.1 200 OK\r\n");\r
 223                 writer.Write("Server: KancolleSniffer\r\n");\r
 224                 writer.Write("Date: {0:R}\r\n", DateTime.Now);\r
 225                 writer.Write("Content-Length: {0}\r\n", new FileInfo(path).Length);\r
 226                 writer.Write("Content-Type: {0}\r\n", mime);\r
 227                 writer.Write("Connection: close\r\n\r\n");\r
 228                 writer.Flush();\r
 229                 client.SendFile(path, ((MemoryStream)writer.BaseStream).ToArray(), null,\r
 230                     TransmitFileOptions.UseDefaultWorkerThread);\r
 231             }\r
 232         }\r
 233 \r
 234         public void Stop()\r
 235         {\r
 236             IsListening = false;\r
 237             _listener.Server.Close();\r
 238         }\r
 239     }\r
 240 }