mcs/class/Mainsoft.Web/Mainsoft.Web.Hosting/BaseHttpServlet.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
  28 using System.Configuration;
  29 using System.Web;
  30 using System.Web.Configuration;
  31 using System.Threading;
  32 using System.Web.Hosting;
  33 using System.IO;
  34
  35 using javax.servlet;
  36 using javax.servlet.http;
  37 using vmw.common;
  38 using java.util;
  39
  40 namespace Mainsoft.Web.Hosting
  41 {
  42         public class BaseHttpServlet : HttpServlet
  43         {
  44                 //private AppDomain _servletDomain;
  45                 static readonly LocalDataStoreSlot _servletRequestSlot = Thread.GetNamedDataSlot(J2EEConsts.SERVLET_REQUEST);
  46                 static readonly LocalDataStoreSlot _servletResponseSlot = Thread.GetNamedDataSlot(J2EEConsts.SERVLET_RESPONSE);
  47                 static readonly LocalDataStoreSlot _servletSlot = Thread.GetNamedDataSlot(J2EEConsts.CURRENT_SERVLET);
  48
  49                 bool _performedInit = false;
  50
  51                 public BaseHttpServlet()
  52                 {
  53                 }
  54
  55                 override public void init(ServletConfig config)
  56                 {
  57                         base.init(config);
  58                         InitServlet(config);
  59
  60                 }
  61
  62                 protected virtual void InitServlet(ServletConfig config)
  63                 {
  64                         if (config.getServletContext().getAttribute(J2EEConsts.APP_DOMAIN) != null)
  65                                 return;
  66
  67                         try
  68                         {
  69                                 AppDomain servletDomain = createServletDomain(config);
  70                                 vmw.@internal.EnvironmentUtils.setAppDomain(servletDomain);
  71
  72                                 //GH Infromation Initizalization
  73                                 int nowInt = DateTime.Now.ToString().GetHashCode();
  74                                 servletDomain.SetData(".domainId", nowInt.ToString("x"));
  75                                 nowInt += "/".GetHashCode ();
  76                                 servletDomain.SetData(".appId", nowInt.ToString("x"));
  77                                 servletDomain.SetData(".appName", nowInt.ToString("x"));
  78
  79                                 servletDomain.SetData(J2EEConsts.CLASS_LOADER, vmw.common.TypeUtils.ToClass(this).getClassLoader());
  80                                 servletDomain.SetData(J2EEConsts.SERVLET_CONFIG, config);
  81                                 servletDomain.SetData(J2EEConsts.RESOURCE_LOADER, new vmw.@internal.j2ee.ServletResourceLoader(config.getServletContext()));
  82
  83                                 config.getServletContext().setAttribute(J2EEConsts.APP_DOMAIN, servletDomain);
  84                                 _performedInit = true;
  85                         }
  86                         finally
  87                         {
  88                                 vmw.@internal.EnvironmentUtils.cleanTLS();
  89                                 vmw.@internal.EnvironmentUtils.clearAppDomain();
  90                         }
  91                 }
  92
  93                 protected override void service (HttpServletRequest req, HttpServletResponse resp)
  94                 {
  95                         resp.setContentType("text/html");
  96                         service(req, resp, resp.getOutputStream());
  97                 }
  98
  99                 public virtual void service(HttpServletRequest req, HttpServletResponse resp, java.io.OutputStream output)
 100                 {
 101                         try
 102                         {
 103                                 // Very important - to update Virtual Path!!!
 104                                 AppDomain servletDomain = (AppDomain)this.getServletContext().getAttribute(J2EEConsts.APP_DOMAIN);
 105                                 servletDomain.SetData(IAppDomainConfig.APP_VIRT_DIR, req.getContextPath());
 106                                 servletDomain.SetData(".hostingVirtualPath", req.getContextPath());
 107
 108                                 // Put to the TLS current AppDomain of the servlet, so anyone can use it.
 109                                 vmw.@internal.EnvironmentUtils.setAppDomain(servletDomain);
 110
 111                                 // put request to the TLS
 112                                 Thread.SetData(_servletRequestSlot, req);
 113                                 // put response to the TLS
 114                                 Thread.SetData(_servletResponseSlot, resp);
 115                                 // put the servlet object to the TLS
 116                                 Thread.SetData(_servletSlot, this);
 117
 118                                 resp.setHeader("X-Powered-By", "ASP.NET");
 119                                 resp.setHeader("X-AspNet-Version", "1.1.4322");
 120
 121                                 HttpWorkerRequest gwr = new ServletWorkerRequest(this, req, resp, output);
 122                                 HttpRuntime.ProcessRequest(gwr);
 123                         }
 124                         finally
 125                         {
 126                                 HttpContext.Current = null;
 127                                 Thread.SetData(_servletRequestSlot, null);
 128                                 Thread.SetData(_servletResponseSlot, null);
 129                                 Thread.SetData(_servletSlot, null);
 130                                 vmw.@internal.EnvironmentUtils.clearAppDomain();
 131                         }
 132                 }
 133
 134                 override public void destroy()
 135                 {
 136                         base.destroy();
 137                         if (!_performedInit)
 138                                 return;
 139
 140                         try
 141                         {
 142                                 AppDomain servletDomain = (AppDomain)this.getServletContext().getAttribute(J2EEConsts.APP_DOMAIN);
 143                                 vmw.@internal.EnvironmentUtils.setAppDomain(servletDomain);
 144 #if DEBUG
 145                                 Console.WriteLine("Destroy of GhHttpServlet");
 146 #endif
 147                                 HttpRuntime.Close();
 148                                 vmw.@internal.EnvironmentUtils.cleanAllBeforeServletDestroy(this);
 149                                 this.getServletContext().removeAttribute(J2EEConsts.APP_DOMAIN);
 150                                 java.lang.Thread.currentThread().setContextClassLoader(null);
 151                         }
 152                         catch(Exception e)
 153                         {
 154 #if DEBUG
 155                                 Console.WriteLine("ERROR in Servlet Destroy {0},{1}",e.GetType(), e.Message);
 156                                 Console.WriteLine(e.StackTrace);
 157 #endif
 158                         }
 159                         finally
 160                         {
 161                                 vmw.@internal.EnvironmentUtils.clearAppDomain();
 162                         }
 163                 }
 164
 165                 private AppDomain createServletDomain(ServletConfig config)
 166                 {
 167                                 string rootPath = J2EEUtils.GetApplicationRealPath(config);
 168                                 AppDomainSetup domainSetup = new AppDomainSetup();
 169                                 string name = config.getServletName();//.getServletContextName();
 170                                 if (name == null)
 171                                         name = "GH Application";
 172                                 domainSetup.ApplicationName = name;
 173                                 domainSetup.ConfigurationFile = Path.Combine (rootPath, "Web.config");
 174                                 domainSetup.PrivateBinPath = Path.Combine (rootPath, "WEB-INF/lib");
 175
 176                                 AppDomain servletDomain = AppDomain.CreateDomain(name, null, domainSetup);
 177
 178
 179
 180
 181
 182                                 //servletDomain.SetData(IAppDomainConfig.APP_PHYS_DIR, J2EEUtils.GetApplicationPhysicalPath(config));
 183                                 //servletDomain.SetData(IAppDomainConfig.WEB_APP_DIR, rootPath);
 184
 185                                 servletDomain.SetData(IAppDomainConfig.APP_PHYS_DIR, J2EEUtils.GetApplicationPhysicalPath(config));
 186                                 servletDomain.SetData(IAppDomainConfig.WEB_APP_DIR, rootPath);
 187
 188                                 //Set DataDirectory substitution string (http://blogs.msdn.com/dataaccess/archive/2005/10/28/486273.aspx)
 189                                 string dataDirectory = J2EEUtils.GetInitParameterByHierarchy(config, "DataDirectory");
 190                                 if (dataDirectory == null)
 191                                         dataDirectory = "APP_DATA";
 192
 193                                 if (!Path.IsPathRooted (dataDirectory)) {
 194                                         java.io.InputStream inputStream = config.getServletContext ().getResourceAsStream ("/WEB-INF/classes/appData.properties");
 195                                         string root;
 196                                         if (inputStream != null) {
 197                                                 try {
 198                                                         Properties props = new Properties ();
 199                                                         props.load (inputStream);
 200                                                         root = props.getProperty ("root.folder");
 201                                                 }
 202                                                 finally {
 203                                                         inputStream.close ();
 204                                                 }
 205                                         }
 206                                         else
 207                                                 root = config.getServletContext ().getRealPath ("/");
 208
 209                                         if (root == null)
 210                                                 root = String.Empty;
 211
 212                                         dataDirectory = Path.Combine (root, dataDirectory);
 213                                 }
 214
 215                                 if (dataDirectory [dataDirectory.Length - 1] != Path.DirectorySeparatorChar)
 216                                         dataDirectory += Path.DirectorySeparatorChar;
 217
 218                                 servletDomain.SetData ("DataDirectory", dataDirectory);
 219
 220                                 // The BaseDir is the full path to the physical dir of the app
 221                                 // and allows the application to modify files in the case of
 222                                 // open deployment.
 223                                 string webApp_baseDir = config.getServletContext().getRealPath("");
 224                                 if (webApp_baseDir == null || webApp_baseDir == "")
 225                                         webApp_baseDir = rootPath;
 226                                 servletDomain.SetData(IAppDomainConfig.APP_BASE_DIR , webApp_baseDir);
 227 #if DEBUG
 228                                 Console.WriteLine("Initialization of webapp " + webApp_baseDir);
 229 #endif
 230                                 // Mordechai : setting the web app deserializer object.
 231                                 servletDomain.SetData(J2EEConsts.DESERIALIZER_CONST , this.GetDeserializer());
 232                                 servletDomain.SetData(vmw.@internal.EnvironmentUtils.GH_DRIVER_UTILS_CONST, this.getDriverUtils());
 233                                 //servletDomain.SetData(".hostingVirtualPath", "/");
 234                                 //servletDomain.SetData(".hostingInstallDir", "/");
 235                                 return servletDomain;
 236                 }
 237
 238                 virtual protected vmw.@internal.io.IObjectsDeserializer GetDeserializer()
 239                 {
 240                         if (m_deseializer == null)
 241                                 m_deseializer = new GHWebDeseserializer();
 242                         return m_deseializer;
 243                 }
 244
 245                 protected vmw.@internal.io.IObjectsDeserializer m_deseializer = null;
 246                 /// Mordechai: This class comes to solve a problem in class deserialize
 247                 /// within web application. The problem is that the classloader that created
 248                 /// some user web class (for example aspx page) is not the class loader
 249                 /// that de-serialize it - thus we end with ClassDefNotFoundException.
 250                 /// To prevent this situation we delegate the serialization back the the
 251                 /// web app (which has the correct class loader...)
 252                 ///
 253
 254                 virtual protected vmw.@internal.IDriverUtils getDriverUtils()
 255                 {
 256                         //by default no driver utils, the specific servlet will override this method
 257                         return null;
 258                 }
 259         }
 260
 261         public class GHWebDeseserializer : vmw.@internal.io.IObjectsDeserializer
 262         {
 263
 264                         Object vmw.@internal.io.IObjectsDeserializer.Deserialize(java.io.ObjectInputStream stream)
 265                         {
 266                                 object obj = stream.readObject();
 267                                 return obj;
 268                         }
 269         }
 270 }
 271
 272 namespace System.Web.GH
 273 {
 274         public class BaseHttpServlet : Mainsoft.Web.Hosting.BaseHttpServlet
 275         {
 276         }
 277
 278 }
 279
 280 namespace System.Web.J2EE
 281 {
 282         public class BaseHttpServlet : Mainsoft.Web.Hosting.BaseHttpServlet
 283         {
 284         }
 285
 286 }