Permission denied exception on saving file to filesystem

[Rituraj tyagi]

Hi All

I was trying to save an uploaded file at the location where application(war) is deployed on tomcat server(free hosting plan) by trying getServletContext().getRealPath() but it returned null instead of path but this worked on local machine . Than I tried to save files to local filesystem on server (let us suppose /var/tmp/../file/) but it thrown an exception Permission denied even though the server gets the locations write and read permissions as true . Below is the code:-

protected void processRequest(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		log.debug("########################");
		log.debug("check point 1");
		try {
			FileItemFactory factory = new DiskFileItemFactory();
			log.debug("check point 1");
			ServletFileUpload upload = new ServletFileUpload(factory);
			log.debug("check point 11");
			List items = null;
			log.debug("check point 12");
			// + e.getCause());
			log.debug("Current execution environment "
					+ System.getProperty("user.dir"));
			File dir = new File(relativePath);
			log.debug("relative Path exist " + dir.exists());
			try {
				items = upload.parseRequest(request);
				log.debug("check point 13");
				log.debug("" + items.size());
			} catch (FileUploadException e) {
				log.debug("Exception is " + e.getMessage()
						+ " cause " + e.getCause());
			}
			log.debug("check point 14");
			Iterator it = items.iterator();
			log.debug("check point 15");
			String tabType = null, picName = null, fileName = null;
			log.debug("check point 16");
			while (it.hasNext()) {
				log.debug("check point 17");
				FileItem item = (FileItem) it.next();
				log.debug("check point 18");
				String fieldName = item.getFieldName();
				log.debug("check point 2");
				if (fieldName != null
						&& (fieldName.contains("Tab-") || fieldName
								.contains("Name-"))) {
					String[] resultantString = fieldName.split("-");
					if (resultantString.length > 1) {
						if (resultantString[0].equals("Tab")) {
							tabType = resultantString[1];
						} else if (resultantString[0].equals("Name")) {
							picName = resultantString[1];
						}
					}
				} else {

					String name = item.getName();
					log.debug("check point 3");
					String fileExt = "." + serverName(name);
					log.debug("check point 4");
					log.debug("looking local path ");

					/*
					 * String realPath = getServletContext().getRealPath(
					 * DESTINATION_DIR_PATH);
					 */
					// URL
					// relativepath=getServletContext().getResource(DESTINATION_DIR_PATH);
					//					
					// FileInputStream fileStream=(FileInputStream)
					// getServletContext().getResourceAsStream(DESTINATION_DIR_PATH);
					String realPath = DESTINATION_DIR_PATH;
					log.debug("server URl is " + realPath);
					log.debug("check point 5");
					log.debug("Real path is :" + realPath);
					File parentDir = new File(realPath);
					log.debug("1.Directory permissions Exists:"
							+ parentDir.exists() + " Read:"
							+ parentDir.canRead() + " Write:"
							+ parentDir.canWrite());
					parentDir.setWritable(true);
					log.debug("2.Directory permissions Exists:"
							+ parentDir.exists() + " Read:"
							+ parentDir.canRead() + " Write:"
							+ parentDir.canWrite());
					imageServiceDAO
							.logentry("dir contains " + parentDir.list());
					try {
						fileName = randomGenerator.nextLong() + fileExt;
						File uploadedFile = null;

						while (imageServiceDAO.checkForLikeFile(fileName)) {
							fileName = realPath + randomGenerator.nextLong()
									+ fileExt;
						}
						uploadedFile = new File(parentDir, fileName);

						if (uploadedFile.createNewFile()) {
							item.write(uploadedFile);
							log.debug("File created at path "
									+ fileName);
						}
						insertImageEntry(fileName.replaceAll("\\\\", "/"),
								tabType, picName);
					} catch (Exception e) {
						log.debug("Exception is "
								+ e.getMessage());
					}
					PrintWriter out = response.getWriter();
					out.println("Upload Done");
				}
			}
		} catch (Exception e) {
			log.debug("Exception in FileUploadServlet is :"
					+ e.getMessage());
		}

	}

I doubt that the problem is with the security policy of the hosting service but not sure . So guys can you please suggest on this.

Thanks in advance

[Paul Clapham]

Rituraj tyagi wrote:I doubt that the problem is with the security policy of the hosting service but not sure

Quite likely the hosting service does have a security policy which prevents you from using their disk space. Does your contract with the service mention that?

[Wendy Gibbons]

Paul Clapham wrote:

Rituraj tyagi wrote:I doubt that the problem is with the security policy of the hosting service but not sure

Quite likely the hosting service does have a security policy which prevents you from using their disk space. Does your contract with the service mention that?

especially as it is free