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.Configuration;
  30 using System.Threading;
  31
  32 using javax.servlet;
  33 using javax.servlet.http;
  34 using vmw.common;
  35
  36 namespace System.Web.J2EE
  37 {
  38         public class BaseStaticHttpServlet : HttpServlet
  39         {
  40                 public BaseStaticHttpServlet()
  41                 {
  42                 }
  43
  44                 override public void init(ServletConfig config)
  45                 {
  46                         base.init(config);
  47                         ServletContext context = config.getServletContext();
  48                         AppDir = config.getInitParameter(IAppDomainConfig.APP_DIR_NAME);
  49                         if (AppDir != null) {
  50                                 AppDir = AppDir.Replace('\\', '/');
  51                                 if (AppDir[AppDir.Length - 1] != '/')
  52                                         AppDir += '/';
  53                         }
  54                 }
  55
  56                 override protected void service(HttpServletRequest req, HttpServletResponse resp)
  57                 {
  58                         String pathInfo = req.getRequestURI();
  59                         String contextPath = req.getContextPath();
  60                         if (pathInfo.Equals(contextPath) ||
  61                                 ((pathInfo.Length - contextPath.Length) == 1) && pathInfo[pathInfo.Length-1] == '/' && pathInfo.StartsWith(contextPath))
  62                                 pathInfo = contextPath + req.getServletPath();
  63                         resp.setHeader("X-Powered-By", "ASP.NET");
  64                         resp.setHeader("X-AspNet-Version", "1.1.4322");
  65
  66                         ServletOutputStream hos = resp.getOutputStream();
  67                         String filename = "";
  68                         try
  69                         {
  70                                 pathInfo = pathInfo.Substring(contextPath.Length);
  71                                 if (pathInfo.StartsWith("/") || pathInfo.StartsWith("\\"))
  72                                         pathInfo = pathInfo.Substring(1);
  73                                 filename = AppDir + pathInfo;
  74                                 resp.setContentType(this.getServletContext().getMimeType(filename));
  75                                 FileStream fis = null;
  76                                 try {
  77                                         fis = new FileStream(filename,FileMode.Open,FileAccess.Read);
  78                                         byte[] buf = new byte[4 * 1024];  // 4K buffer
  79                                         int bytesRead;
  80                                         while ((bytesRead = fis.Read(buf,0,buf.Length)) != -1 &&
  81                                                    bytesRead != 0) {
  82                                                 hos.write(TypeUtils.ToSByteArray(buf), 0, bytesRead);
  83                                         }
  84                                 }
  85                                 finally {
  86                                         if (fis != null) fis.Close();
  87                                 }
  88                         }
  89                         catch (System.IO.FileNotFoundException e)
  90                         {
  91                                 resp.setStatus(404,"Object Not Found.");
  92                                 HttpException myExp = new HttpException (404, "File '" + filename + "' not found.");
  93                                 hos.print(((HttpException) myExp).GetHtmlErrorMessage ());
  94                                 hos.flush();
  95                         }
  96                         catch(Exception e)
  97                         {
  98                                 Console.WriteLine("ERROR in Static File Reading {0},{1}",e.GetType(), e.Message);
  99                                 resp.setStatus(500);
 100                                 HttpException myExp = new HttpException ("Exception in Reading static file", e);
 101                                 hos.print(((HttpException) myExp).GetHtmlErrorMessage ());
 102                                 hos.flush();
 103                         }
 104                 }
 105
 106                 override public void destroy()
 107                 {
 108                         base.destroy();
 109                 }
 110
 111                 private string AppDir;
 112         }
 113 }
 114
 115 namespace System.Web.GH
 116 {
 117         public class BaseStaticHttpServlet : System.Web.J2EE.BaseStaticHttpServlet
 118         {
 119         }
 120
 121 }