mono/mcs/class/System.Web/System.Web.J2EE/J2EEUtils.cs

//
// (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Web.Util;
using System.IO;
using [email protected];
using vmw.common;

using javax.servlet;

namespace System.Web.J2EE
{
	public class J2EEUtils
	{
		public J2EEUtils()
		{
		}

		public static bool FileExists(string fileName)
		{
			//First reduce virtual or phys path
			if (fileName.StartsWith(IAppDomainConfig.WAR_ROOT_SYMBOL))
				fileName = fileName.Substring(IAppDomainConfig.WAR_ROOT_SYMBOL.Length);
			if (fileName.StartsWith(HttpRuntime.AppDomainAppVirtualPath + "/"))
				fileName = fileName.Substring(HttpRuntime.AppDomainAppVirtualPath.Length + 1);	
			if (fileName.StartsWith(HttpRuntime.AppDomainAppPath))
				fileName = fileName.Substring(HttpRuntime.AppDomainAppPath.Length);

			IResourceLoader resLoader = (IResourceLoader)AppDomain.CurrentDomain.GetData("GH_ResourceLoader");
			if (resLoader == null)
				throw new HttpException("Unexpected exception in GHUtils.FileExists method. Resource loader not initialized under current domain");

			java.net.URL res = resLoader.getResource(fileName);
			if (res == null)
			{
				if(fileName.StartsWith("/"))
					fileName = fileName.Substring(1);
				java.lang.ClassLoader cl = (java.lang.ClassLoader)AppDomain.CurrentDomain.GetData("GH_ContextClassLoader");
				if (cl != null)
					res = cl.getResource(fileName);
			}

			if (res == null)
				return false;

			return true;
		}

		public static string GetApplicationRealPath(ServletConfig config) 
		{
			string realFs = config.getInitParameter(J2EEConsts.FILESYSTEM_ACCESS);
			if(realFs != null && realFs == J2EEConsts.ACCESS_FULL)
			{
				try 
				{
					if(Path.IsPathRooted(config.getServletContext().getRealPath("")))
						return config.getServletContext().getRealPath("").Replace("\\","/").TrimEnd('/');
				}
				catch (ArgumentException e)
				{
					Console.WriteLine(e.Message);
				}
				catch (Exception e)
				{
					Console.WriteLine(e.Message);
				}
			}
			return IAppDomainConfig.WAR_ROOT_SYMBOL;
		}

		public static string GetApplicationPhysicalPath(ServletConfig config) {
			string path = "";
			ServletContext context = config.getServletContext();
			string appDir = config.getInitParameter(IAppDomainConfig.APP_DIR_NAME);
			Console.WriteLine("appdir = {0}", appDir);
			if (appDir != null)
			{
				try
				{
					java.io.File f = new java.io.File(appDir);
					if(f.exists())
					{
						Console.WriteLine("Physical path= {0}", appDir);
						path = appDir;
					}
				}
				catch (Exception e)
				{
					Console.WriteLine(e.Message + appDir + "is invalid or unaccessible." +
						" If " + appDir + " really exists, check your security permissions"); 
				};
			}			
			if (path == "")
			{
				path = GetApplicationRealPath(config);
			}

			if (!path.EndsWith ("/") && !path.EndsWith ("\\"))
				path += "/";

			Console.WriteLine("Physical path= {0}", path); 
			return path;
		}

		public static int RunProc(string[] cmd)
		{	
			java.lang.Runtime rt = java.lang.Runtime.getRuntime();
			java.lang.Process proc = rt.exec(cmd);
			
			StreamGobbler errorGobbler = new 
				StreamGobbler(proc.getErrorStream(), "ERROR");            
          
			StreamGobbler outputGobbler = new 
				StreamGobbler(proc.getInputStream(), "OUTPUT");
                
			errorGobbler.start();
			outputGobbler.start();
                             
			int exitVal = proc.waitFor();
			return exitVal;	
		}
	}

	public class StreamGobbler : java.lang.Thread
	{
		java.io.InputStream _is;
		String _type;
    
		public StreamGobbler(java.io.InputStream ins, String type)
		{
			this._is = ins;
			this._type = type;
		}
    
		public override void run()
		{
			try
			{
				java.io.InputStreamReader isr = new java.io.InputStreamReader(_is);
				java.io.BufferedReader br = new java.io.BufferedReader(isr);
				String line=null;
				while ( (line = br.readLine()) != null)
				{
#if DEBUG
					Console.WriteLine(_type + ">" + line); 
#endif
				}
			} 
			catch (Exception ex)
			{
#if DEBUG
				Console.WriteLine(ex);
#endif
			}
		}
	}
}