mcs/class/Mainsoft.Web/Mainsoft.Web.Hosting/BaseStaticHttpServlet.cs

   1 //
   2 // (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
   3 //
   4
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25
  26 using System;
  27 using System.IO;
  28 using System.Configuration;
  29 using System.Web;
  30 using System.Threading;
  31
  32 using javax.servlet;
  33 using javax.servlet.http;
  34 using vmw.common;
  35 using System.Diagnostics;
  36
  37 namespace Mainsoft.Web.Hosting
  38 {
  39         /// <summary>
  40         /// <para>This class supports the Framework infrastructure and is not intended to be used directly from your code.</para>
  41         /// </summary>
  42         public class BaseStaticHttpServlet : HttpServlet
  43         {
  44                 public BaseStaticHttpServlet()
  45                 {
  46                 }
  47
  48                 override public void init(ServletConfig config)
  49                 {
  50                         base.init(config);
  51                         AppDir = config.getServletContext ().getInitParameter (IAppDomainConfig.APP_DIR_NAME);
  52                         if (AppDir != null) {
  53                                 AppDir = AppDir.Replace('\\', '/');
  54                                 if (AppDir[AppDir.Length - 1] != '/')
  55                                         AppDir += '/';
  56                         }
  57                 }
  58
  59                 override protected void service(HttpServletRequest req, HttpServletResponse resp)
  60                 {
  61                         resp.setHeader("X-Powered-By", "ASP.NET");
  62                         resp.setHeader("X-AspNet-Version", "1.1.4322");
  63
  64                         String filename = getServletContext().getRealPath(req.getServletPath());
  65                         ServletOutputStream hos;
  66                         try {
  67                                 hos = resp.getOutputStream();
  68                         }
  69                         catch (java.lang.IllegalStateException e)
  70                         {
  71                                 string mimeType = getServletContext().getMimeType(filename);
  72                                 if (mimeType == null || mimeType.StartsWith("text")) {
  73                                         sendFileUsingWriter(resp, filename);
  74                                         return;
  75                                 }
  76                                 else
  77                                         throw e;
  78                         }
  79                         try
  80                         {
  81                                 string mimeType = this.getServletContext().getMimeType(filename);
  82                                 if (mimeType == null)
  83                                         mimeType = "text/plain";
  84
  85                                 resp.setContentType(mimeType);
  86
  87                                 FileStream fis = null;
  88                                 try {
  89                                         fis = new FileStream(filename,FileMode.Open,FileAccess.Read);
  90                                         byte[] buf = new byte[4 * 1024];  // 4K buffer
  91                                         int bytesRead;
  92                                         while ((bytesRead = fis.Read(buf,0,buf.Length)) != -1 &&
  93                                                    bytesRead != 0) {
  94                                                 hos.write(TypeUtils.ToSByteArray(buf), 0, bytesRead);
  95                                         }
  96                                 }
  97                                 finally {
  98                                         if (fis != null) fis.Close();
  99                                 }
 100                         }
 101                         catch (System.IO.FileNotFoundException e)
 102                         {
 103                                 resp.setStatus(404,"Object Not Found.");
 104                                 HttpException myExp = new HttpException (404, "File '" + filename + "' not found.");
 105                                 hos.print(((HttpException) myExp).GetHtmlErrorMessage ());
 106                                 hos.flush();
 107                         }
 108                         catch(Exception e)
 109                         {
 110                                 Trace.WriteLine (String.Format ("ERROR in Static File Reading {0},{1}", e.GetType (), e.Message));
 111                                 resp.setStatus(500);
 112                                 HttpException myExp = new HttpException ("Exception in Reading static file", e);
 113                                 hos.print(((HttpException) myExp).GetHtmlErrorMessage ());
 114                                 hos.flush();
 115                         }
 116                 }
 117
 118                 void sendFileUsingWriter(HttpServletResponse resp, string filename)
 119                 {
 120                         java.io.PrintWriter writer = resp.getWriter();
 121                         try
 122                         {
 123                                 resp.setContentType(this.getServletContext().getMimeType(filename));
 124                                 StreamReader fis = null;
 125                                 char[] buf = new char[4 * 1024];  // 4K buffer
 126                                 try {
 127                                         fis = new StreamReader(filename);
 128                                         int charsRead;
 129                                         while ((charsRead = fis.Read(buf,0,buf.Length)) != -1 &&
 130                                                 charsRead != 0) {
 131                                                 writer.write(buf, 0, charsRead);
 132                                         }
 133                                 }
 134                                 finally {
 135                                         if (fis != null) fis.Close();
 136                                 }
 137                         }
 138                         catch (System.IO.FileNotFoundException e)
 139                         {
 140                                 resp.setStatus(404,"Object Not Found.");
 141                                 HttpException myExp = new HttpException (404, "File '" + filename + "' not found.");
 142                                 writer.print(((HttpException) myExp).GetHtmlErrorMessage ());
 143                                 writer.flush();
 144                         }
 145                         catch(Exception e)
 146                         {
 147                                 Trace.WriteLine (String.Format ("ERROR in Static File Reading {0},{1}", e.GetType (), e.Message));
 148                                 resp.setStatus(500);
 149                                 HttpException myExp = new HttpException ("Exception in Reading static file", e);
 150                                 writer.print(((HttpException) myExp).GetHtmlErrorMessage ());
 151                                 writer.flush();
 152                         }
 153                 }
 154
 155                 override public void destroy()
 156                 {
 157                         base.destroy();
 158                 }
 159
 160                 private string AppDir;
 161         }
 162 }
 163
 164 namespace System.Web.J2EE
 165 {
 166         /// <summary>
 167         /// <para>This class supports the Framework infrastructure and is not intended to be used directly from your code.</para>
 168         /// </summary>
 169         public class BaseStaticHttpServlet : Mainsoft.Web.Hosting.BaseStaticHttpServlet
 170         {
 171         }
 172
 173 }
 174
 175
 176 namespace System.Web.GH
 177 {
 178         /// <summary>
 179         /// <para>This class supports the Framework infrastructure and is not intended to be used directly from your code.</para>
 180         /// </summary>
 181         public class BaseStaticHttpServlet : Mainsoft.Web.Hosting.BaseStaticHttpServlet
 182         {
 183         }
 184
 185 }
 186