root / gss / src / gr / ebs / gss / server / rest / FilesHandler.java @ faa8d601
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/*
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* Copyright 2008, 2009 Electronic Business Systems Ltd.
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*
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* This file is part of GSS.
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*
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* GSS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GSS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GSS. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gr.ebs.gss.server.rest; |
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import gr.ebs.gss.client.exceptions.DuplicateNameException; |
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import gr.ebs.gss.client.exceptions.GSSIOException; |
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import gr.ebs.gss.client.exceptions.InsufficientPermissionsException; |
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import gr.ebs.gss.client.exceptions.ObjectNotFoundException; |
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import gr.ebs.gss.client.exceptions.QuotaExceededException; |
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import gr.ebs.gss.client.exceptions.RpcException; |
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import gr.ebs.gss.server.domain.FileUploadStatus; |
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import gr.ebs.gss.server.domain.User; |
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import gr.ebs.gss.server.domain.dto.FileBodyDTO; |
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import gr.ebs.gss.server.domain.dto.FileHeaderDTO; |
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import gr.ebs.gss.server.domain.dto.FolderDTO; |
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import gr.ebs.gss.server.domain.dto.GroupDTO; |
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import gr.ebs.gss.server.domain.dto.PermissionDTO; |
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import gr.ebs.gss.server.ejb.ExternalAPI; |
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import gr.ebs.gss.server.webdav.Range; |
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import java.io.BufferedReader; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.io.OutputStreamWriter; |
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import java.io.PrintWriter; |
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import java.io.UnsupportedEncodingException; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.net.URLDecoder; |
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import java.net.URLEncoder; |
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import java.util.ArrayList; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Set; |
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import java.util.StringTokenizer; |
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import javax.servlet.ServletContext; |
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import javax.servlet.ServletException; |
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import javax.servlet.ServletOutputStream; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import org.apache.commons.fileupload.FileItemIterator; |
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import org.apache.commons.fileupload.FileItemStream; |
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import org.apache.commons.fileupload.FileUploadException; |
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import org.apache.commons.fileupload.ProgressListener; |
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import org.apache.commons.fileupload.servlet.ServletFileUpload; |
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import org.apache.commons.fileupload.util.Streams; |
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import org.apache.commons.httpclient.util.DateParseException; |
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import org.apache.commons.httpclient.util.DateUtil; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.json.JSONArray; |
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import org.json.JSONException; |
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import org.json.JSONObject; |
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/**
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* A class that handles operations on the 'files' namespace.
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*
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* @author past
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*/
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public class FilesHandler extends RequestHandler { |
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/**
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* The request parameter name for fetching a different version.
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*/
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private static final String VERSION_PARAM = "version"; |
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/**
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* The request attribute containing the owner of the destination URI
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* in a copy or move request.
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*/
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private static final String DESTINATION_OWNER_ATTRIBUTE = "destOwner"; |
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private static final int TRACK_PROGRESS_PERCENT = 5; |
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/**
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* The form parameter name that contains the signature in a browser POST upload.
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*/
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private static final String AUTHORIZATION_PARAMETER = "Authorization"; |
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/**
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* The form parameter name that contains the date in a browser POST upload.
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*/
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private static final String DATE_PARAMETER = "Date"; |
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/**
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* The request parameter name for making an upload progress request.
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*/
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private static final String PROGRESS_PARAMETER = "progress"; |
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/**
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* The request parameter name for restoring a previous version of a file.
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*/
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private static final String RESTORE_VERSION_PARAMETER = "restoreVersion"; |
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/**
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* The logger.
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*/
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private static Log logger = LogFactory.getLog(FilesHandler.class); |
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/**
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* The servlet context provided by the call site.
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*/
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private ServletContext context;
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/**
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* @param servletContext
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*/
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public FilesHandler(ServletContext servletContext) {
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context = servletContext; |
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} |
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/**
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* Serve the specified resource, optionally including the data content.
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*
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* @param req The servlet request we are processing
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* @param resp The servlet response we are creating
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* @param content Should the content be included?
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*
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* @exception IOException if an input/output error occurs
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* @exception ServletException if a servlet-specified error occurs
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* @throws RpcException
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* @throws InsufficientPermissionsException
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* @throws ObjectNotFoundException
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*/
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@Override
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protected void serveResource(HttpServletRequest req, HttpServletResponse resp, boolean content) |
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throws IOException, ServletException { |
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boolean authDeferred = getAuthDeferred(req);
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String path = getInnerPath(req, PATH_FILES);
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if (path.equals("")) |
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path = "/";
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try {
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path = URLDecoder.decode(path, "UTF-8"); |
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} catch (IllegalArgumentException e) { |
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resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
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return;
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} |
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String progress = req.getParameter(PROGRESS_PARAMETER);
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if (logger.isDebugEnabled())
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if (content)
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logger.debug("Serving resource '" + path + "' headers and data"); |
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else
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logger.debug("Serving resource '" + path + "' headers only"); |
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User user = getUser(req); |
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User owner = getOwner(req); |
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if (user == null) user = owner; |
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boolean exists = true; |
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Object resource = null; |
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FileHeaderDTO file = null;
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FolderDTO folder = null;
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try {
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resource = getService().getResourceAtPath(owner.getId(), path, false);
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} catch (ObjectNotFoundException e) {
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exists = false;
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} catch (RpcException e) {
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resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
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return;
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} |
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if (!exists) {
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if (authDeferred) {
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// We do not want to leak information if the request
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// was not authenticated.
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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// A request for upload progress.
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if (progress != null && content) { |
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serveProgress(req, resp, progress, user, null);
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return;
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} |
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resp.sendError(HttpServletResponse.SC_NOT_FOUND, req.getRequestURI()); |
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return;
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} |
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if (resource instanceof FolderDTO) |
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folder = (FolderDTO) resource; |
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else
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file = (FileHeaderDTO) resource; |
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// Now it's time to perform the deferred authentication check.
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// Since regular signature checking was already performed,
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// we need to check the read-all flag or the signature-in-parameters.
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if (authDeferred)
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if (file != null && !file.isReadForAll() && content) { |
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// Check for GET with the signature in the request parameters.
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String auth = req.getParameter(AUTHORIZATION_PARAMETER);
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String dateParam = req.getParameter(DATE_PARAMETER);
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if (auth == null || dateParam == null) { |
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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long timestamp;
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try {
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timestamp = DateUtil.parseDate(dateParam).getTime(); |
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} catch (DateParseException e) {
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resp.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage()); |
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return;
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} |
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if (!isTimeValid(timestamp)) {
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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// Fetch the Authorization parameter and find the user specified in it.
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String[] authParts = auth.split(" "); |
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if (authParts.length != 2) { |
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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String username = authParts[0]; |
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String signature = authParts[1]; |
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user = null;
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try {
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user = getService().findUser(username); |
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} catch (RpcException e) {
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resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
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return;
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} |
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if (user == null) { |
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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req.setAttribute(USER_ATTRIBUTE, user); |
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// Remove the servlet path from the request URI.
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String p = req.getRequestURI();
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String servletPath = req.getContextPath() + req.getServletPath();
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p = p.substring(servletPath.length()); |
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// Validate the signature in the Authorization parameter.
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String data = req.getMethod() + dateParam + p;
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if (!isSignatureValid(signature, user, data)) {
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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} else if (file != null && !file.isReadForAll() || file == null) { |
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// Check for a read-for-all file request.
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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// If the resource is not a collection, and the resource path
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// ends with "/" or "\", return NOT FOUND.
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if (folder == null) |
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if (path.endsWith("/") || path.endsWith("\\")) { |
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resp.sendError(HttpServletResponse.SC_NOT_FOUND, req.getRequestURI()); |
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return;
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} |
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// Workaround for IE's broken caching behavior.
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if (folder != null) |
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resp.setHeader("Expires", "-1"); |
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// A request for upload progress.
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if (progress != null && content) { |
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if (file == null) { |
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resp.sendError(HttpServletResponse.SC_BAD_REQUEST); |
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return;
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} |
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serveProgress(req, resp, progress, user, file); |
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return;
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} |
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// Fetch the version to retrieve, if specified.
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String verStr = req.getParameter(VERSION_PARAM);
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int version = 0; |
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FileBodyDTO oldBody = null;
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if (verStr != null && file != null) |
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try {
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version = Integer.valueOf(verStr);
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} catch (NumberFormatException e) { |
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resp.sendError(HttpServletResponse.SC_BAD_REQUEST, req.getRequestURI()); |
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return;
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} |
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if (version > 0) |
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try {
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oldBody = getService().getFileVersion(user.getId(), file.getId(), version); |
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} catch (RpcException e) {
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resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
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return;
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} catch (ObjectNotFoundException e) {
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resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
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return;
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} catch (InsufficientPermissionsException e) {
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resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
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return;
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} |
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// Check if the conditions specified in the optional If headers are
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// satisfied. Doing this for folders would require recursive checking
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// for all of their children, which in turn would defy the purpose of
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// the optimization.
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if (folder == null) |
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// Checking If headers.
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if (!checkIfHeaders(req, resp, file, oldBody))
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return;
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// Find content type.
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String contentType = null; |
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if (file != null) { |
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contentType = version>0 ? oldBody.getMimeType() : file.getMimeType();
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if (contentType == null) { |
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contentType = context.getMimeType(file.getName()); |
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file.setMimeType(contentType); |
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} |
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} else
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contentType = "application/json;charset=UTF-8";
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ArrayList ranges = null; |
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long contentLength = -1L; |
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if (file != null) { |
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// Parse range specifier
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ranges = parseRange(req, resp, file, oldBody); |
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// ETag header
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resp.setHeader("ETag", getETag(file, oldBody));
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// Last-Modified header
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String lastModified = oldBody == null ? |
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getLastModifiedHttp(file.getAuditInfo()) : |
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getLastModifiedHttp(oldBody.getAuditInfo()); |
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resp.setHeader("Last-Modified", lastModified);
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// X-GSS-Metadata header
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try {
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resp.setHeader("X-GSS-Metadata", renderJson(user, file, oldBody));
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} catch (InsufficientPermissionsException e) {
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resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
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return;
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} |
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// Get content length
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contentLength = version>0 ? oldBody.getFileSize() : file.getFileSize();
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// Special case for zero length files, which would cause a
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// (silent) ISE when setting the output buffer size
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if (contentLength == 0L) |
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content = false;
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} |
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ServletOutputStream ostream = null;
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PrintWriter writer = null; |
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if (content)
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try {
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ostream = resp.getOutputStream(); |
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} catch (IllegalStateException e) { |
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// If it fails, we try to get a Writer instead if we're
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// trying to serve a text file
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if ( contentType == null |
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|| contentType.startsWith("text")
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|| contentType.endsWith("xml") )
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writer = resp.getWriter(); |
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else
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throw e;
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} |
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if (folder != null |
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|| (ranges == null || ranges.isEmpty())
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&& req.getHeader("Range") == null |
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|| ranges == FULL) {
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// Set the appropriate output headers
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if (contentType != null) { |
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if (logger.isDebugEnabled())
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logger.debug("contentType='" + contentType + "'"); |
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resp.setContentType(contentType); |
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} |
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if (file != null && contentLength >= 0) { |
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if (logger.isDebugEnabled())
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logger.debug("contentLength=" + contentLength);
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if (contentLength < Integer.MAX_VALUE) |
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resp.setContentLength((int) contentLength);
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else
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// Set the content-length as String to be able to use a long
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resp.setHeader("content-length", "" + contentLength); |
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} |
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InputStream renderResult = null; |
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if (folder != null) |
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if (content) {
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// Serve the directory browser
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String parentUrl = getContextPath(req, true); |
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try {
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renderResult = renderJson(user, folder, parentUrl); |
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} catch (InsufficientPermissionsException e) {
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resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
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return;
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} |
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} |
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// Copy the input stream to our output stream (if requested)
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if (content) {
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try {
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resp.setBufferSize(output); |
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} catch (IllegalStateException e) { |
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// Silent catch
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} |
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try {
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if(file != null) |
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resp.setHeader("Content-Disposition","attachment; filename=\""+file.getName()+"\""); |
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if (ostream != null) |
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copy(file, renderResult, ostream, req, oldBody); |
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else
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copy(file, renderResult, writer, req, oldBody); |
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} catch (ObjectNotFoundException e) {
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resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
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return;
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} catch (InsufficientPermissionsException e) {
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resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
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return;
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} catch (RpcException e) {
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resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
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return;
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} |
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} |
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} else {
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if (ranges == null || ranges.isEmpty()) |
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return;
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// Partial content response.
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resp.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); |
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if (ranges.size() == 1) { |
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Range range = (Range) ranges.get(0);
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resp.addHeader("Content-Range", "bytes " |
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+ range.start |
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+ "-" + range.end + "/" |
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+ range.length); |
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long length = range.end - range.start + 1; |
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if (length < Integer.MAX_VALUE) |
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resp.setContentLength((int) length);
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else
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// Set the content-length as String to be able to use a long
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resp.setHeader("content-length", "" + length); |
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|
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if (contentType != null) { |
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if (logger.isDebugEnabled())
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logger.debug("contentType='" + contentType + "'"); |
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resp.setContentType(contentType); |
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} |
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|
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if (content) {
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try {
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resp.setBufferSize(output); |
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} catch (IllegalStateException e) { |
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// Silent catch
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} |
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try {
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if (ostream != null) |
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copy(file, ostream, range, req, oldBody); |
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else
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copy(file, writer, range, req, oldBody); |
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} catch (ObjectNotFoundException e) {
|
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resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
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return;
|
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} catch (InsufficientPermissionsException e) {
|
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resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
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return;
|
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} catch (RpcException e) {
|
| 482 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 483 |
return;
|
| 484 |
} |
| 485 |
} |
| 486 |
} else {
|
| 487 |
resp.setContentType("multipart/byteranges; boundary=" + mimeSeparation);
|
| 488 |
if (content) {
|
| 489 |
try {
|
| 490 |
resp.setBufferSize(output); |
| 491 |
} catch (IllegalStateException e) { |
| 492 |
// Silent catch
|
| 493 |
} |
| 494 |
try {
|
| 495 |
if (ostream != null) |
| 496 |
copy(file, ostream, ranges.iterator(), contentType, req, oldBody); |
| 497 |
else
|
| 498 |
copy(file, writer, ranges.iterator(), contentType, req, oldBody); |
| 499 |
} catch (ObjectNotFoundException e) {
|
| 500 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 501 |
return;
|
| 502 |
} catch (InsufficientPermissionsException e) {
|
| 503 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 504 |
return;
|
| 505 |
} catch (RpcException e) {
|
| 506 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 507 |
return;
|
| 508 |
} |
| 509 |
} |
| 510 |
} |
| 511 |
} |
| 512 |
} |
| 513 |
|
| 514 |
/**
|
| 515 |
* Sends a progress update on the amount of bytes received until now for
|
| 516 |
* a file that the current user is currently uploading.
|
| 517 |
*
|
| 518 |
* @param req the HTTP request
|
| 519 |
* @param resp the HTTP response
|
| 520 |
* @param parameter the value for the progress request parameter
|
| 521 |
* @param user the current user
|
| 522 |
* @param file the file being uploaded, or null if the request is about a new file
|
| 523 |
* @throws IOException if an I/O error occurs
|
| 524 |
*/
|
| 525 |
private void serveProgress(HttpServletRequest req, HttpServletResponse resp, |
| 526 |
String parameter, User user, FileHeaderDTO file) throws IOException { |
| 527 |
String filename = file == null ? parameter : file.getName(); |
| 528 |
try {
|
| 529 |
FileUploadStatus status = getService().getFileUploadStatus(user.getId(), filename); |
| 530 |
if (status == null) { |
| 531 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 532 |
return;
|
| 533 |
} |
| 534 |
JSONObject json = new JSONObject();
|
| 535 |
json.put("bytesUploaded", status.getBytesUploaded()).
|
| 536 |
put("bytesTotal", status.getFileSize());
|
| 537 |
sendJson(req, resp, json.toString()); |
| 538 |
|
| 539 |
// Workaround for IE's broken caching behavior.
|
| 540 |
resp.setHeader("Expires", "-1"); |
| 541 |
return;
|
| 542 |
} catch (RpcException e) {
|
| 543 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 544 |
return;
|
| 545 |
} catch (JSONException e) {
|
| 546 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
| 547 |
return;
|
| 548 |
} |
| 549 |
} |
| 550 |
|
| 551 |
/**
|
| 552 |
* Server a POST request to create/modify a file or folder.
|
| 553 |
*
|
| 554 |
* @param req the HTTP request
|
| 555 |
* @param resp the HTTP response
|
| 556 |
* @exception IOException if an input/output error occurs
|
| 557 |
*/
|
| 558 |
void postResource(HttpServletRequest req, HttpServletResponse resp) throws IOException { |
| 559 |
boolean authDeferred = getAuthDeferred(req);
|
| 560 |
if (!authDeferred && req.getParameterMap().size() > 1) { |
| 561 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST); |
| 562 |
return;
|
| 563 |
} |
| 564 |
String path = getInnerPath(req, PATH_FILES);
|
| 565 |
path = path.endsWith("/")? path: path + '/'; |
| 566 |
path = URLDecoder.decode(path, "UTF-8"); |
| 567 |
// We only defer authenticating multipart POST requests.
|
| 568 |
if (authDeferred) {
|
| 569 |
if (!ServletFileUpload.isMultipartContent(req)) {
|
| 570 |
resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
| 571 |
return;
|
| 572 |
} |
| 573 |
handleMultipart(req, resp, path); |
| 574 |
return;
|
| 575 |
} |
| 576 |
|
| 577 |
String newName = req.getParameter(NEW_FOLDER_PARAMETER);
|
| 578 |
boolean hasUpdateParam = req.getParameterMap().containsKey(RESOURCE_UPDATE_PARAMETER);
|
| 579 |
boolean hasTrashParam = req.getParameterMap().containsKey(RESOURCE_TRASH_PARAMETER);
|
| 580 |
boolean hasRestoreParam = req.getParameterMap().containsKey(RESOURCE_RESTORE_PARAMETER);
|
| 581 |
String copyTo = req.getParameter(RESOURCE_COPY_PARAMETER);
|
| 582 |
String moveTo = req.getParameter(RESOURCE_MOVE_PARAMETER);
|
| 583 |
String restoreVersion = req.getParameter(RESTORE_VERSION_PARAMETER);
|
| 584 |
|
| 585 |
if (newName != null) { |
| 586 |
try {
|
| 587 |
newName = URLDecoder.decode(newName, "UTF-8"); |
| 588 |
} catch (IllegalArgumentException e) { |
| 589 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 590 |
return;
|
| 591 |
} |
| 592 |
createFolder(req, resp, path, newName); |
| 593 |
} else if (hasUpdateParam) |
| 594 |
updateResource(req, resp, path); |
| 595 |
else if (hasTrashParam) |
| 596 |
trashResource(req, resp, path); |
| 597 |
else if (hasRestoreParam) |
| 598 |
restoreResource(req, resp, path); |
| 599 |
else if (copyTo != null) |
| 600 |
copyResource(req, resp, path, copyTo); |
| 601 |
else if (moveTo != null) |
| 602 |
moveResource(req, resp, path, moveTo); |
| 603 |
else if (restoreVersion != null) |
| 604 |
restoreVersion(req, resp, path, restoreVersion); |
| 605 |
else
|
| 606 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST); |
| 607 |
} |
| 608 |
|
| 609 |
/**
|
| 610 |
* Restores a previous version for a file.
|
| 611 |
*
|
| 612 |
* @param req the HTTP request
|
| 613 |
* @param resp the HTTP response
|
| 614 |
* @param path the resource path
|
| 615 |
* @param version the version number to restore
|
| 616 |
* @throws IOException if an I/O error occurs
|
| 617 |
*/
|
| 618 |
private void restoreVersion(HttpServletRequest req, HttpServletResponse resp, String path, String version) throws IOException { |
| 619 |
User user = getUser(req); |
| 620 |
User owner = getOwner(req); |
| 621 |
Object resource = null; |
| 622 |
try {
|
| 623 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
| 624 |
} catch (ObjectNotFoundException e) {
|
| 625 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 626 |
return;
|
| 627 |
} catch (RpcException e) {
|
| 628 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 629 |
return;
|
| 630 |
} |
| 631 |
if (resource instanceof FolderDTO) { |
| 632 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 633 |
return;
|
| 634 |
} |
| 635 |
|
| 636 |
try {
|
| 637 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 638 |
int oldVersion = Integer.parseInt(version); |
| 639 |
getService().restoreVersion(user.getId(), file.getId(), oldVersion); |
| 640 |
} catch (InsufficientPermissionsException e) {
|
| 641 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 642 |
} catch (ObjectNotFoundException e) {
|
| 643 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 644 |
} catch (RpcException e) {
|
| 645 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 646 |
} catch (GSSIOException e) {
|
| 647 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
| 648 |
} catch (QuotaExceededException e) {
|
| 649 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
| 650 |
} catch (NumberFormatException e) { |
| 651 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 652 |
} |
| 653 |
} |
| 654 |
|
| 655 |
/**
|
| 656 |
* A method for handling multipart POST requests for uploading
|
| 657 |
* files from browser-based JavaScript clients.
|
| 658 |
*
|
| 659 |
* @param request the HTTP request
|
| 660 |
* @param response the HTTP response
|
| 661 |
* @param path the resource path
|
| 662 |
* @throws IOException in case an error occurs writing to the
|
| 663 |
* response stream
|
| 664 |
*/
|
| 665 |
private void handleMultipart(HttpServletRequest request, HttpServletResponse response, String path) throws IOException { |
| 666 |
if (logger.isDebugEnabled())
|
| 667 |
logger.debug("Multipart POST for resource: " + path);
|
| 668 |
|
| 669 |
User owner = getOwner(request); |
| 670 |
boolean exists = true; |
| 671 |
Object resource = null; |
| 672 |
FileHeaderDTO file = null;
|
| 673 |
try {
|
| 674 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
| 675 |
} catch (ObjectNotFoundException e) {
|
| 676 |
exists = false;
|
| 677 |
} catch (RpcException e) {
|
| 678 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 679 |
return;
|
| 680 |
} |
| 681 |
|
| 682 |
if (exists)
|
| 683 |
if (resource instanceof FileHeaderDTO) { |
| 684 |
file = (FileHeaderDTO) resource; |
| 685 |
if (file.isDeleted()) {
|
| 686 |
response.sendError(HttpServletResponse.SC_CONFLICT, file.getName() + " is in the trash");
|
| 687 |
return;
|
| 688 |
} |
| 689 |
} else {
|
| 690 |
response.sendError(HttpServletResponse.SC_CONFLICT, path + " is a folder");
|
| 691 |
return;
|
| 692 |
} |
| 693 |
|
| 694 |
FolderDTO folder = null;
|
| 695 |
Object parent;
|
| 696 |
String parentPath = null; |
| 697 |
try {
|
| 698 |
parentPath = getParentPath(path); |
| 699 |
parent = getService().getResourceAtPath(owner.getId(), parentPath, true);
|
| 700 |
} catch (ObjectNotFoundException e) {
|
| 701 |
response.sendError(HttpServletResponse.SC_NOT_FOUND, parentPath); |
| 702 |
return;
|
| 703 |
} catch (RpcException e) {
|
| 704 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 705 |
return;
|
| 706 |
} |
| 707 |
if (!(parent instanceof FolderDTO)) { |
| 708 |
response.sendError(HttpServletResponse.SC_CONFLICT); |
| 709 |
return;
|
| 710 |
} |
| 711 |
folder = (FolderDTO) parent; |
| 712 |
String fileName = getLastElement(path);
|
| 713 |
|
| 714 |
FileItemIterator iter; |
| 715 |
File uploadedFile = null; |
| 716 |
try {
|
| 717 |
// Create a new file upload handler.
|
| 718 |
ServletFileUpload upload = new ServletFileUpload();
|
| 719 |
StatusProgressListener progressListener = new StatusProgressListener(getService());
|
| 720 |
upload.setProgressListener(progressListener); |
| 721 |
iter = upload.getItemIterator(request); |
| 722 |
String dateParam = null; |
| 723 |
String auth = null; |
| 724 |
while (iter.hasNext()) {
|
| 725 |
FileItemStream item = iter.next(); |
| 726 |
String name = item.getFieldName();
|
| 727 |
InputStream stream = item.openStream();
|
| 728 |
if (item.isFormField()) {
|
| 729 |
final String value = Streams.asString(stream); |
| 730 |
if (name.equals(DATE_PARAMETER))
|
| 731 |
dateParam = value; |
| 732 |
else if (name.equals(AUTHORIZATION_PARAMETER)) |
| 733 |
auth = value; |
| 734 |
|
| 735 |
if (logger.isDebugEnabled())
|
| 736 |
logger.debug(name + ":" + value);
|
| 737 |
} else {
|
| 738 |
// Fetch the timestamp used to guard against replay attacks.
|
| 739 |
if (dateParam == null) { |
| 740 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, "No Date parameter");
|
| 741 |
return;
|
| 742 |
} |
| 743 |
|
| 744 |
long timestamp;
|
| 745 |
try {
|
| 746 |
timestamp = DateUtil.parseDate(dateParam).getTime(); |
| 747 |
} catch (DateParseException e) {
|
| 748 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage()); |
| 749 |
return;
|
| 750 |
} |
| 751 |
if (!isTimeValid(timestamp)) {
|
| 752 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
| 753 |
return;
|
| 754 |
} |
| 755 |
|
| 756 |
// Fetch the Authorization parameter and find the user specified in it.
|
| 757 |
if (auth == null) { |
| 758 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, "No Authorization parameter");
|
| 759 |
return;
|
| 760 |
} |
| 761 |
String[] authParts = auth.split(" "); |
| 762 |
if (authParts.length != 2) { |
| 763 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
| 764 |
return;
|
| 765 |
} |
| 766 |
String username = authParts[0]; |
| 767 |
String signature = authParts[1]; |
| 768 |
User user = null;
|
| 769 |
try {
|
| 770 |
user = getService().findUser(username); |
| 771 |
} catch (RpcException e) {
|
| 772 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 773 |
return;
|
| 774 |
} |
| 775 |
if (user == null) { |
| 776 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
| 777 |
return;
|
| 778 |
} |
| 779 |
request.setAttribute(USER_ATTRIBUTE, user); |
| 780 |
|
| 781 |
// Remove the servlet path from the request URI.
|
| 782 |
String p = request.getRequestURI();
|
| 783 |
String servletPath = request.getContextPath() + request.getServletPath();
|
| 784 |
p = p.substring(servletPath.length()); |
| 785 |
// Validate the signature in the Authorization parameter.
|
| 786 |
String data = request.getMethod() + dateParam + p;
|
| 787 |
if (!isSignatureValid(signature, user, data)) {
|
| 788 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
| 789 |
return;
|
| 790 |
} |
| 791 |
|
| 792 |
progressListener.setUserId(user.getId()); |
| 793 |
progressListener.setFilename(fileName); |
| 794 |
String contentType = item.getContentType();
|
| 795 |
|
| 796 |
try {
|
| 797 |
uploadedFile = getService().uploadFile(stream, user.getId()); |
| 798 |
} catch (IOException ex) { |
| 799 |
throw new GSSIOException(ex, false); |
| 800 |
} |
| 801 |
if (file == null) |
| 802 |
getService().createFile(user.getId(), folder.getId(), fileName, contentType, uploadedFile); |
| 803 |
else
|
| 804 |
getService().updateFileContents(user.getId(), file.getId(), contentType, uploadedFile); |
| 805 |
getService().removeFileUploadProgress(user.getId(), fileName); |
| 806 |
} |
| 807 |
} |
| 808 |
// We can't return 204 here since GWT's onSubmitComplete won't fire.
|
| 809 |
response.setContentType("text/html");
|
| 810 |
response.getWriter().print("<pre></pre>");
|
| 811 |
} catch (FileUploadException e) {
|
| 812 |
String error = "Error while uploading file"; |
| 813 |
logger.error(error, e); |
| 814 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
| 815 |
} catch (GSSIOException e) {
|
| 816 |
if (uploadedFile != null && uploadedFile.exists()) |
| 817 |
uploadedFile.delete(); |
| 818 |
String error = "Error while uploading file"; |
| 819 |
if (e.logAsError())
|
| 820 |
logger.error(error, e); |
| 821 |
else
|
| 822 |
logger.debug(error, e); |
| 823 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
| 824 |
} catch (DuplicateNameException e) {
|
| 825 |
if (uploadedFile != null && uploadedFile.exists()) |
| 826 |
uploadedFile.delete(); |
| 827 |
String error = "The specified file name already exists in this folder"; |
| 828 |
logger.error(error, e); |
| 829 |
response.sendError(HttpServletResponse.SC_CONFLICT, error); |
| 830 |
|
| 831 |
} catch (InsufficientPermissionsException e) {
|
| 832 |
if (uploadedFile != null && uploadedFile.exists()) |
| 833 |
uploadedFile.delete(); |
| 834 |
String error = "You don't have the necessary permissions"; |
| 835 |
logger.error(error, e); |
| 836 |
response.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, error); |
| 837 |
|
| 838 |
} catch (QuotaExceededException e) {
|
| 839 |
if (uploadedFile != null && uploadedFile.exists()) |
| 840 |
uploadedFile.delete(); |
| 841 |
String error = "Not enough free space available"; |
| 842 |
if (logger.isDebugEnabled())
|
| 843 |
logger.debug(error, e); |
| 844 |
response.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, error); |
| 845 |
|
| 846 |
} catch (ObjectNotFoundException e) {
|
| 847 |
if (uploadedFile != null && uploadedFile.exists()) |
| 848 |
uploadedFile.delete(); |
| 849 |
String error = "A specified object was not found"; |
| 850 |
logger.error(error, e); |
| 851 |
response.sendError(HttpServletResponse.SC_NOT_FOUND, error); |
| 852 |
} catch (RpcException e) {
|
| 853 |
if (uploadedFile != null && uploadedFile.exists()) |
| 854 |
uploadedFile.delete(); |
| 855 |
String error = "An error occurred while communicating with the service"; |
| 856 |
logger.error(error, e); |
| 857 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
| 858 |
} |
| 859 |
} |
| 860 |
|
| 861 |
private String getBackupFilename(FileHeaderDTO file, String filename){ |
| 862 |
List<FileHeaderDTO> deletedFiles = new ArrayList<FileHeaderDTO>(); |
| 863 |
try{
|
| 864 |
deletedFiles = getService().getDeletedFiles(file.getOwner().getId()); |
| 865 |
} |
| 866 |
catch(ObjectNotFoundException e){
|
| 867 |
|
| 868 |
} catch (RpcException e) {
|
| 869 |
|
| 870 |
} |
| 871 |
List<FileHeaderDTO> filesInSameFolder = new ArrayList<FileHeaderDTO>(); |
| 872 |
for(FileHeaderDTO deleted : deletedFiles)
|
| 873 |
if(deleted.getFolder().getId().equals(file.getFolder().getId()))
|
| 874 |
filesInSameFolder.add(deleted); |
| 875 |
int i=1; |
| 876 |
String filenameToCheck = filename;
|
| 877 |
for(FileHeaderDTO same : filesInSameFolder)
|
| 878 |
if(same.getName().startsWith(filename)){
|
| 879 |
String toCheck=same.getName().substring(filename.length(),same.getName().length());
|
| 880 |
if(toCheck.startsWith(" ")){ |
| 881 |
int test =-1; |
| 882 |
try{
|
| 883 |
test = Integer.valueOf(toCheck.replace(" ","")); |
| 884 |
} |
| 885 |
catch(NumberFormatException e){ |
| 886 |
//do nothing since string is not a number
|
| 887 |
} |
| 888 |
if(test>=i)
|
| 889 |
i = test+1;
|
| 890 |
} |
| 891 |
} |
| 892 |
|
| 893 |
return filename+" "+i; |
| 894 |
} |
| 895 |
|
| 896 |
/**
|
| 897 |
* Move the resource in the specified path to the specified destination.
|
| 898 |
*
|
| 899 |
* @param req the HTTP request
|
| 900 |
* @param resp the HTTP response
|
| 901 |
* @param path the path of the resource
|
| 902 |
* @param moveTo the destination of the move procedure
|
| 903 |
* @throws IOException if an input/output error occurs
|
| 904 |
*/
|
| 905 |
private void moveResource(HttpServletRequest req, HttpServletResponse resp, String path, String moveTo) throws IOException { |
| 906 |
User user = getUser(req); |
| 907 |
User owner = getOwner(req); |
| 908 |
Object resource = null; |
| 909 |
try {
|
| 910 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
| 911 |
} catch (ObjectNotFoundException e) {
|
| 912 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 913 |
return;
|
| 914 |
} catch (RpcException e) {
|
| 915 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 916 |
return;
|
| 917 |
} |
| 918 |
|
| 919 |
String destination = null; |
| 920 |
User destOwner = null;
|
| 921 |
boolean exists = true; |
| 922 |
try {
|
| 923 |
destination = getDestinationPath(req, encodePath(moveTo)); |
| 924 |
destination = URLDecoder.decode(destination, "UTF-8"); |
| 925 |
destOwner = getDestinationOwner(req); |
| 926 |
getService().getResourceAtPath(destOwner.getId(), destination, true);
|
| 927 |
} catch (ObjectNotFoundException e) {
|
| 928 |
exists = false;
|
| 929 |
} catch (URISyntaxException e) { |
| 930 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 931 |
return;
|
| 932 |
} catch (RpcException e) {
|
| 933 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
| 934 |
return;
|
| 935 |
} |
| 936 |
if (exists) {
|
| 937 |
resp.sendError(HttpServletResponse.SC_CONFLICT, destination + " already exists");
|
| 938 |
return;
|
| 939 |
} |
| 940 |
|
| 941 |
try {
|
| 942 |
if (resource instanceof FolderDTO) { |
| 943 |
FolderDTO folder = (FolderDTO) resource; |
| 944 |
getService().moveFolderToPath(user.getId(), destOwner.getId(), folder.getId(), destination); |
| 945 |
} else {
|
| 946 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 947 |
getService().moveFileToPath(user.getId(), destOwner.getId(), file.getId(), destination); |
| 948 |
} |
| 949 |
} catch (InsufficientPermissionsException e) {
|
| 950 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 951 |
} catch (ObjectNotFoundException e) {
|
| 952 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 953 |
} catch (RpcException e) {
|
| 954 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
| 955 |
} catch (DuplicateNameException e) {
|
| 956 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
| 957 |
} catch (GSSIOException e) {
|
| 958 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
| 959 |
} catch (QuotaExceededException e) {
|
| 960 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
| 961 |
} |
| 962 |
} |
| 963 |
|
| 964 |
/**
|
| 965 |
* Copy the resource in the specified path to the specified destination.
|
| 966 |
*
|
| 967 |
* @param req the HTTP request
|
| 968 |
* @param resp the HTTP response
|
| 969 |
* @param path the path of the resource
|
| 970 |
* @param copyTo the destination of the copy procedure
|
| 971 |
* @throws IOException if an input/output error occurs
|
| 972 |
*/
|
| 973 |
private void copyResource(HttpServletRequest req, HttpServletResponse resp, String path, String copyTo) throws IOException { |
| 974 |
User user = getUser(req); |
| 975 |
User owner = getOwner(req); |
| 976 |
Object resource = null; |
| 977 |
try {
|
| 978 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
| 979 |
} catch (ObjectNotFoundException e) {
|
| 980 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 981 |
return;
|
| 982 |
} catch (RpcException e) {
|
| 983 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 984 |
return;
|
| 985 |
} |
| 986 |
|
| 987 |
String destination = null; |
| 988 |
User destOwner = null;
|
| 989 |
boolean exists = true; |
| 990 |
try {
|
| 991 |
destination = getDestinationPath(req, encodePath(copyTo)); |
| 992 |
destination = URLDecoder.decode(destination, "UTF-8"); |
| 993 |
destOwner = getDestinationOwner(req); |
| 994 |
getService().getResourceAtPath(destOwner.getId(), destination, true);
|
| 995 |
} catch (ObjectNotFoundException e) {
|
| 996 |
exists = false;
|
| 997 |
} catch (URISyntaxException e) { |
| 998 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 999 |
return;
|
| 1000 |
} catch (RpcException e) {
|
| 1001 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
| 1002 |
return;
|
| 1003 |
} |
| 1004 |
if (exists) {
|
| 1005 |
resp.sendError(HttpServletResponse.SC_CONFLICT, destination + " already exists");
|
| 1006 |
return;
|
| 1007 |
} |
| 1008 |
|
| 1009 |
try {
|
| 1010 |
if (resource instanceof FolderDTO) { |
| 1011 |
FolderDTO folder = (FolderDTO) resource; |
| 1012 |
getService().copyFolderStructureToPath(user.getId(), destOwner.getId(), folder.getId(), destination); |
| 1013 |
} else {
|
| 1014 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 1015 |
getService().copyFileToPath(user.getId(), destOwner.getId(), file.getId(), destination); |
| 1016 |
} |
| 1017 |
} catch (InsufficientPermissionsException e) {
|
| 1018 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1019 |
} catch (ObjectNotFoundException e) {
|
| 1020 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 1021 |
} catch (RpcException e) {
|
| 1022 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
| 1023 |
} catch (DuplicateNameException e) {
|
| 1024 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
| 1025 |
} catch (GSSIOException e) {
|
| 1026 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
| 1027 |
} catch (QuotaExceededException e) {
|
| 1028 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
| 1029 |
} |
| 1030 |
} |
| 1031 |
|
| 1032 |
private String encodePath(String path) throws UnsupportedEncodingException{ |
| 1033 |
StringTokenizer str = new StringTokenizer(path, "/:", true); |
| 1034 |
String result = new String(); |
| 1035 |
while(str.hasMoreTokens()){
|
| 1036 |
String token = str.nextToken();
|
| 1037 |
if(!token.equals("/") && !token.equals(":")) |
| 1038 |
token = URLEncoder.encode(token,"UTF-8"); |
| 1039 |
result = result + token; |
| 1040 |
} |
| 1041 |
return result;
|
| 1042 |
} |
| 1043 |
/**
|
| 1044 |
* A helper method that extracts the relative resource path,
|
| 1045 |
* after removing the 'files' namespace.
|
| 1046 |
*
|
| 1047 |
* @param req the HTTP request
|
| 1048 |
* @param path the specified path
|
| 1049 |
* @return the path relative to the root folder
|
| 1050 |
* @throws URISyntaxException
|
| 1051 |
* @throws RpcException in case an error occurs while communicating
|
| 1052 |
* with the backend
|
| 1053 |
*/
|
| 1054 |
private String getDestinationPath(HttpServletRequest req, String path) throws URISyntaxException, RpcException { |
| 1055 |
URI uri = new URI(path); |
| 1056 |
String dest = uri.getPath();
|
| 1057 |
// Remove the context path from the destination URI.
|
| 1058 |
String contextPath = req.getContextPath();
|
| 1059 |
if (!dest.startsWith(contextPath))
|
| 1060 |
throw new URISyntaxException(dest, "Destination path does not start with " + contextPath); |
| 1061 |
dest = dest.substring(contextPath.length()); |
| 1062 |
// Remove the servlet path from the destination URI.
|
| 1063 |
String servletPath = req.getServletPath();
|
| 1064 |
if (!dest.startsWith(servletPath))
|
| 1065 |
throw new URISyntaxException(dest, "Destination path does not start with " + servletPath); |
| 1066 |
dest = dest.substring(servletPath.length()); |
| 1067 |
// Strip the username part
|
| 1068 |
if (dest.length() < 2) |
| 1069 |
throw new URISyntaxException(dest, "No username in the destination URI"); |
| 1070 |
int slash = dest.substring(1).indexOf('/'); |
| 1071 |
if (slash == -1) |
| 1072 |
throw new URISyntaxException(dest, "No username in the destination URI"); |
| 1073 |
String owner = dest.substring(1, slash + 1); |
| 1074 |
User o; |
| 1075 |
o = getService().findUser(owner); |
| 1076 |
if (o == null) |
| 1077 |
throw new URISyntaxException(dest, "User " + owner + " not found"); |
| 1078 |
|
| 1079 |
req.setAttribute(DESTINATION_OWNER_ATTRIBUTE, o); |
| 1080 |
dest = dest.substring(slash + 1);
|
| 1081 |
|
| 1082 |
// Chop the resource namespace part
|
| 1083 |
dest = dest.substring(RequestHandler.PATH_FILES.length()); |
| 1084 |
|
| 1085 |
dest = dest.endsWith("/")? dest: dest + '/'; |
| 1086 |
return dest;
|
| 1087 |
} |
| 1088 |
|
| 1089 |
/**
|
| 1090 |
* Move the resource in the specified path to the trash bin.
|
| 1091 |
*
|
| 1092 |
* @param req the HTTP request
|
| 1093 |
* @param resp the HTTP response
|
| 1094 |
* @param path the path of the resource
|
| 1095 |
* @throws IOException if an input/output error occurs
|
| 1096 |
*/
|
| 1097 |
private void trashResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
| 1098 |
User user = getUser(req); |
| 1099 |
User owner = getOwner(req); |
| 1100 |
Object resource = null; |
| 1101 |
try {
|
| 1102 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
| 1103 |
} catch (ObjectNotFoundException e) {
|
| 1104 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 1105 |
return;
|
| 1106 |
} catch (RpcException e) {
|
| 1107 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1108 |
return;
|
| 1109 |
} |
| 1110 |
|
| 1111 |
try {
|
| 1112 |
if (resource instanceof FolderDTO) { |
| 1113 |
FolderDTO folder = (FolderDTO) resource; |
| 1114 |
getService().moveFolderToTrash(user.getId(), folder.getId()); |
| 1115 |
} else {
|
| 1116 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 1117 |
getService().moveFileToTrash(user.getId(), file.getId()); |
| 1118 |
} |
| 1119 |
} catch (InsufficientPermissionsException e) {
|
| 1120 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1121 |
} catch (ObjectNotFoundException e) {
|
| 1122 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 1123 |
} catch (RpcException e) {
|
| 1124 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1125 |
} |
| 1126 |
} |
| 1127 |
|
| 1128 |
/**
|
| 1129 |
* Restore the resource in the specified path from the trash bin.
|
| 1130 |
*
|
| 1131 |
* @param req the HTTP request
|
| 1132 |
* @param resp the HTTP response
|
| 1133 |
* @param path the path of the resource
|
| 1134 |
* @throws IOException if an input/output error occurs
|
| 1135 |
*/
|
| 1136 |
private void restoreResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
| 1137 |
User user = getUser(req); |
| 1138 |
User owner = getOwner(req); |
| 1139 |
Object resource = null; |
| 1140 |
try {
|
| 1141 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
| 1142 |
} catch (ObjectNotFoundException e) {
|
| 1143 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 1144 |
return;
|
| 1145 |
} catch (RpcException e) {
|
| 1146 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1147 |
return;
|
| 1148 |
} |
| 1149 |
|
| 1150 |
try {
|
| 1151 |
if (resource instanceof FolderDTO) { |
| 1152 |
FolderDTO folder = (FolderDTO) resource; |
| 1153 |
getService().removeFolderFromTrash(user.getId(), folder.getId()); |
| 1154 |
} else {
|
| 1155 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 1156 |
getService().removeFileFromTrash(user.getId(), file.getId()); |
| 1157 |
} |
| 1158 |
} catch (InsufficientPermissionsException e) {
|
| 1159 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1160 |
} catch (ObjectNotFoundException e) {
|
| 1161 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 1162 |
} catch (RpcException e) {
|
| 1163 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1164 |
} |
| 1165 |
} |
| 1166 |
|
| 1167 |
/**
|
| 1168 |
* Update the resource in the specified path.
|
| 1169 |
*
|
| 1170 |
* @param req the HTTP request
|
| 1171 |
* @param resp the HTTP response
|
| 1172 |
* @param path the path of the resource
|
| 1173 |
* @throws IOException if an input/output error occurs
|
| 1174 |
*/
|
| 1175 |
private void updateResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
| 1176 |
User user = getUser(req); |
| 1177 |
User owner = getOwner(req); |
| 1178 |
Object resource = null; |
| 1179 |
try {
|
| 1180 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
| 1181 |
} catch (ObjectNotFoundException e) {
|
| 1182 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
| 1183 |
return;
|
| 1184 |
} catch (RpcException e) {
|
| 1185 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1186 |
return;
|
| 1187 |
} |
| 1188 |
//use utf-8 encoding for reading request
|
| 1189 |
BufferedReader reader = new BufferedReader(new InputStreamReader(req.getInputStream(),"UTF-8")); |
| 1190 |
StringBuffer input = new StringBuffer(); |
| 1191 |
String line = null; |
| 1192 |
JSONObject json = null;
|
| 1193 |
while ((line = reader.readLine()) != null) |
| 1194 |
input.append(line); |
| 1195 |
reader.close(); |
| 1196 |
try {
|
| 1197 |
json = new JSONObject(input.toString());
|
| 1198 |
if (logger.isDebugEnabled())
|
| 1199 |
logger.debug("JSON update: " + json);
|
| 1200 |
if (resource instanceof FolderDTO) { |
| 1201 |
FolderDTO folder = (FolderDTO) resource; |
| 1202 |
String name = json.optString("name"); |
| 1203 |
if (!name.isEmpty()){
|
| 1204 |
try {
|
| 1205 |
name = URLDecoder.decode(name, "UTF-8"); |
| 1206 |
} catch (IllegalArgumentException e) { |
| 1207 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 1208 |
return;
|
| 1209 |
} |
| 1210 |
getService().modifyFolder(user.getId(), folder.getId(), name); |
| 1211 |
FolderDTO folderUpdated = getService().getFolder(user.getId(), folder.getId()); |
| 1212 |
String parentUrl =URLDecoder.decode(getContextPath(req, true),"UTF-8"); |
| 1213 |
String fpath = URLDecoder.decode(req.getPathInfo(), "UTF-8"); |
| 1214 |
parentUrl = parentUrl.replaceAll(fpath, "");
|
| 1215 |
if(!parentUrl.endsWith("/")) |
| 1216 |
parentUrl = parentUrl+"/";
|
| 1217 |
parentUrl = parentUrl+folderUpdated.getOwner().getUsername()+PATH_FILES+folderUpdated.getPath(); |
| 1218 |
resp.getWriter().println(parentUrl); |
| 1219 |
} |
| 1220 |
|
| 1221 |
JSONArray permissions = json.optJSONArray("permissions");
|
| 1222 |
if (permissions != null) { |
| 1223 |
Set<PermissionDTO> perms = parsePermissions(user, permissions);
|
| 1224 |
getService().setFolderPermissions(user.getId(), folder.getId(), perms); |
| 1225 |
} |
| 1226 |
} else {
|
| 1227 |
FileHeaderDTO file = (FileHeaderDTO) resource; |
| 1228 |
String name = null; |
| 1229 |
if (json.opt("name") != null) |
| 1230 |
name = json.optString("name");
|
| 1231 |
JSONArray tagset = json.optJSONArray("tags");
|
| 1232 |
String tags = null; |
| 1233 |
StringBuffer t = new StringBuffer(); |
| 1234 |
if (tagset != null) { |
| 1235 |
for (int i = 0; i < tagset.length(); i++) |
| 1236 |
t.append(tagset.getString(i) + ',');
|
| 1237 |
tags = t.toString(); |
| 1238 |
} |
| 1239 |
if (name != null || tags != null) |
| 1240 |
getService().updateFile(user.getId(), file.getId(), name, tags); |
| 1241 |
|
| 1242 |
JSONArray permissions = json.optJSONArray("permissions");
|
| 1243 |
Set<PermissionDTO> perms = null; |
| 1244 |
if (permissions != null) |
| 1245 |
perms = parsePermissions(user, permissions); |
| 1246 |
Boolean readForAll = null; |
| 1247 |
if (json.opt("readForAll") != null) |
| 1248 |
readForAll = json.optBoolean("readForAll");
|
| 1249 |
if (perms != null || readForAll != null) |
| 1250 |
getService().setFilePermissions(user.getId(), file.getId(), readForAll, perms); |
| 1251 |
|
| 1252 |
if (json.opt("versioned") != null) { |
| 1253 |
boolean versioned = json.getBoolean("versioned"); |
| 1254 |
getService().toggleFileVersioning(user.getId(), file.getId(), versioned); |
| 1255 |
} |
| 1256 |
} |
| 1257 |
} catch (JSONException e) {
|
| 1258 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| 1259 |
} catch (InsufficientPermissionsException e) {
|
| 1260 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1261 |
} catch (ObjectNotFoundException e) {
|
| 1262 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
| 1263 |
} catch (DuplicateNameException e) {
|
| 1264 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
| 1265 |
} catch (RpcException e) {
|
| 1266 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1267 |
} |
| 1268 |
} |
| 1269 |
|
| 1270 |
/**
|
| 1271 |
* Helper method to convert a JSON array of permissions into a set of
|
| 1272 |
* PermissionDTO objects.
|
| 1273 |
*
|
| 1274 |
* @param user the current user
|
| 1275 |
* @param permissions the JSON array to parse
|
| 1276 |
* @return the parsed set of permissions
|
| 1277 |
* @throws JSONException if there was an error parsing the JSON object
|
| 1278 |
* @throws RpcException if there was an error communicating with the EJB
|
| 1279 |
* @throws ObjectNotFoundException if the user could not be found
|
| 1280 |
*/
|
| 1281 |
private Set<PermissionDTO> parsePermissions(User user, JSONArray permissions) |
| 1282 |
throws JSONException, RpcException, ObjectNotFoundException {
|
| 1283 |
if (permissions == null) |
| 1284 |
return null; |
| 1285 |
Set<PermissionDTO> perms = new HashSet<PermissionDTO>(); |
| 1286 |
for (int i = 0; i < permissions.length(); i++) { |
| 1287 |
JSONObject j = permissions.getJSONObject(i); |
| 1288 |
PermissionDTO perm = new PermissionDTO();
|
| 1289 |
perm.setModifyACL(j.optBoolean("modifyACL"));
|
| 1290 |
perm.setRead(j.optBoolean("read"));
|
| 1291 |
perm.setWrite(j.optBoolean("write"));
|
| 1292 |
String permUser = j.optString("user"); |
| 1293 |
if (!permUser.isEmpty()) {
|
| 1294 |
User u = getService().findUser(permUser); |
| 1295 |
if (u == null) |
| 1296 |
throw new ObjectNotFoundException("User " + permUser + " not found"); |
| 1297 |
perm.setUser(u.getDTO()); |
| 1298 |
} |
| 1299 |
String permGroup = j.optString("group"); |
| 1300 |
if (!permGroup.isEmpty()) {
|
| 1301 |
GroupDTO g = getService().getGroup(user.getId(), permGroup); |
| 1302 |
perm.setGroup(g); |
| 1303 |
} |
| 1304 |
if (permUser.isEmpty() && permGroup.isEmpty() ||
|
| 1305 |
permUser.isEmpty() && permGroup.isEmpty()) |
| 1306 |
throw new JSONException("A permission must correspond to either a user or a group"); |
| 1307 |
perms.add(perm); |
| 1308 |
} |
| 1309 |
return perms;
|
| 1310 |
} |
| 1311 |
|
| 1312 |
/**
|
| 1313 |
* Creates a new folder with the specified name under the folder in the provided path.
|
| 1314 |
*
|
| 1315 |
* @param req the HTTP request
|
| 1316 |
* @param resp the HTTP response
|
| 1317 |
* @param path the parent folder path
|
| 1318 |
* @param folderName the name of the new folder
|
| 1319 |
* @throws IOException if an input/output error occurs
|
| 1320 |
*/
|
| 1321 |
private void createFolder(HttpServletRequest req, HttpServletResponse resp, String path, String folderName) throws IOException { |
| 1322 |
if (logger.isDebugEnabled())
|
| 1323 |
logger.debug("Creating folder " + folderName + " in '" + path); |
| 1324 |
|
| 1325 |
User user = getUser(req); |
| 1326 |
User owner = getOwner(req); |
| 1327 |
boolean exists = true; |
| 1328 |
try {
|
| 1329 |
getService().getResourceAtPath(owner.getId(), path + folderName, false);
|
| 1330 |
} catch (ObjectNotFoundException e) {
|
| 1331 |
exists = false;
|
| 1332 |
} catch (RpcException e) {
|
| 1333 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
| 1334 |
return;
|
| 1335 |
} |
| 1336 |
|
| 1337 |
if (exists) {
|
| 1338 |
resp.addHeader("Allow", METHOD_GET + ", " + METHOD_DELETE + |
| 1339 |
", " + METHOD_HEAD);
|
| 1340 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1341 |
return;
|
| 1342 |
} |
| 1343 |
|
| 1344 |
Object parent;
|
| 1345 |
try {
|
| 1346 |
parent = getService().getResourceAtPath(owner.getId(), path, true);
|
| 1347 |
} catch (ObjectNotFoundException e) {
|
| 1348 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1349 |
return;
|
| 1350 |
} catch (RpcException e) {
|
| 1351 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
| 1352 |
return;
|
| 1353 |
} |
| 1354 |
try {
|
| 1355 |
if (parent instanceof FolderDTO) { |
| 1356 |
FolderDTO folder = (FolderDTO) parent; |
| 1357 |
getService().createFolder(user.getId(), folder.getId(), folderName); |
| 1358 |
String newResource = getContextPath(req, true) + folderName; |
| 1359 |
resp.setHeader("Location", newResource);
|
| 1360 |
resp.setContentType("text/plain");
|
| 1361 |
PrintWriter out = resp.getWriter();
|
| 1362 |
out.println(newResource); |
| 1363 |
} else {
|
| 1364 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1365 |
return;
|
| 1366 |
} |
| 1367 |
} catch (DuplicateNameException e) {
|
| 1368 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1369 |
return;
|
| 1370 |
} catch (InsufficientPermissionsException e) {
|
| 1371 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1372 |
return;
|
| 1373 |
} catch (ObjectNotFoundException e) {
|
| 1374 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1375 |
return;
|
| 1376 |
} catch (RpcException e) {
|
| 1377 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
| 1378 |
return;
|
| 1379 |
} |
| 1380 |
resp.setStatus(HttpServletResponse.SC_CREATED); |
| 1381 |
} |
| 1382 |
|
| 1383 |
/**
|
| 1384 |
* @param req
|
| 1385 |
* @param resp
|
| 1386 |
* @throws IOException
|
| 1387 |
* @throws FileNotFoundException
|
| 1388 |
*/
|
| 1389 |
void putResource(HttpServletRequest req, HttpServletResponse resp) throws IOException, FileNotFoundException { |
| 1390 |
String path = getInnerPath(req, PATH_FILES);
|
| 1391 |
if (logger.isDebugEnabled())
|
| 1392 |
logger.debug("Updating resource: " + path);
|
| 1393 |
|
| 1394 |
User user = getUser(req); |
| 1395 |
User owner = getOwner(req); |
| 1396 |
boolean exists = true; |
| 1397 |
Object resource = null; |
| 1398 |
FileHeaderDTO file = null;
|
| 1399 |
try {
|
| 1400 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
| 1401 |
} catch (ObjectNotFoundException e) {
|
| 1402 |
exists = false;
|
| 1403 |
} catch (RpcException e) {
|
| 1404 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1405 |
return;
|
| 1406 |
} |
| 1407 |
|
| 1408 |
if (exists)
|
| 1409 |
if (resource instanceof FileHeaderDTO) |
| 1410 |
file = (FileHeaderDTO) resource; |
| 1411 |
else {
|
| 1412 |
resp.sendError(HttpServletResponse.SC_CONFLICT, path + " is a folder");
|
| 1413 |
return;
|
| 1414 |
} |
| 1415 |
boolean result = true; |
| 1416 |
|
| 1417 |
// Temporary content file used to support partial PUT.
|
| 1418 |
File contentFile = null; |
| 1419 |
|
| 1420 |
Range range = parseContentRange(req, resp); |
| 1421 |
|
| 1422 |
InputStream resourceInputStream = null; |
| 1423 |
|
| 1424 |
// Append data specified in ranges to existing content for this
|
| 1425 |
// resource - create a temporary file on the local filesystem to
|
| 1426 |
// perform this operation.
|
| 1427 |
// Assume just one range is specified for now
|
| 1428 |
if (range != null) { |
| 1429 |
try {
|
| 1430 |
contentFile = executePartialPut(req, range, path); |
| 1431 |
} catch (RpcException e) {
|
| 1432 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1433 |
return;
|
| 1434 |
} catch (ObjectNotFoundException e) {
|
| 1435 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1436 |
return;
|
| 1437 |
} catch (InsufficientPermissionsException e) {
|
| 1438 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1439 |
return;
|
| 1440 |
} |
| 1441 |
resourceInputStream = new FileInputStream(contentFile); |
| 1442 |
} else
|
| 1443 |
resourceInputStream = req.getInputStream(); |
| 1444 |
|
| 1445 |
try {
|
| 1446 |
FolderDTO folder = null;
|
| 1447 |
Object parent = getService().getResourceAtPath(owner.getId(), getParentPath(path), true); |
| 1448 |
if (!(parent instanceof FolderDTO)) { |
| 1449 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1450 |
return;
|
| 1451 |
} |
| 1452 |
folder = (FolderDTO) parent; |
| 1453 |
String name = getLastElement(path);
|
| 1454 |
String mimeType = context.getMimeType(name);
|
| 1455 |
// FIXME: Add attributes
|
| 1456 |
if (exists)
|
| 1457 |
getService().updateFileContents(user.getId(), file.getId(), mimeType, resourceInputStream); |
| 1458 |
else
|
| 1459 |
getService().createFile(user.getId(), folder.getId(), name, mimeType, resourceInputStream); |
| 1460 |
getService().removeFileUploadProgress(user.getId(), file.getName()); |
| 1461 |
} catch(ObjectNotFoundException e) {
|
| 1462 |
result = false;
|
| 1463 |
} catch (RpcException e) {
|
| 1464 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1465 |
return;
|
| 1466 |
} catch (IOException e) { |
| 1467 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1468 |
return;
|
| 1469 |
} catch (GSSIOException e) {
|
| 1470 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
| 1471 |
return;
|
| 1472 |
} catch (DuplicateNameException e) {
|
| 1473 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1474 |
return;
|
| 1475 |
} catch (InsufficientPermissionsException e) {
|
| 1476 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1477 |
return;
|
| 1478 |
} catch (QuotaExceededException e) {
|
| 1479 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
| 1480 |
return;
|
| 1481 |
} |
| 1482 |
|
| 1483 |
if (result) {
|
| 1484 |
if (exists)
|
| 1485 |
resp.setStatus(HttpServletResponse.SC_NO_CONTENT); |
| 1486 |
else
|
| 1487 |
resp.setStatus(HttpServletResponse.SC_CREATED); |
| 1488 |
} else
|
| 1489 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
| 1490 |
} |
| 1491 |
|
| 1492 |
/**
|
| 1493 |
* Delete a resource.
|
| 1494 |
*
|
| 1495 |
* @param req The servlet request we are processing
|
| 1496 |
* @param resp The servlet response we are processing
|
| 1497 |
* @throws IOException if the response cannot be sent
|
| 1498 |
*/
|
| 1499 |
void deleteResource(HttpServletRequest req, HttpServletResponse resp) throws IOException { |
| 1500 |
String path = getInnerPath(req, PATH_FILES);
|
| 1501 |
if (logger.isDebugEnabled())
|
| 1502 |
logger.debug("Deleting resource '" + path);
|
| 1503 |
path = URLDecoder.decode(path, "UTF-8"); |
| 1504 |
User user = getUser(req); |
| 1505 |
User owner = getOwner(req); |
| 1506 |
boolean exists = true; |
| 1507 |
Object object = null; |
| 1508 |
try {
|
| 1509 |
object = getService().getResourceAtPath(owner.getId(), path, false);
|
| 1510 |
} catch (ObjectNotFoundException e) {
|
| 1511 |
exists = false;
|
| 1512 |
} catch (RpcException e) {
|
| 1513 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 1514 |
return;
|
| 1515 |
} |
| 1516 |
|
| 1517 |
if (!exists) {
|
| 1518 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 1519 |
return;
|
| 1520 |
} |
| 1521 |
|
| 1522 |
FolderDTO folder = null;
|
| 1523 |
FileHeaderDTO file = null;
|
| 1524 |
if (object instanceof FolderDTO) |
| 1525 |
folder = (FolderDTO) object; |
| 1526 |
else
|
| 1527 |
file = (FileHeaderDTO) object; |
| 1528 |
|
| 1529 |
if (file != null) |
| 1530 |
try {
|
| 1531 |
getService().deleteFile(user.getId(), file.getId()); |
| 1532 |
} catch (InsufficientPermissionsException e) {
|
| 1533 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1534 |
return;
|
| 1535 |
} catch (ObjectNotFoundException e) {
|
| 1536 |
// Although we had already found the object, it was
|
| 1537 |
// probably deleted from another thread.
|
| 1538 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 1539 |
return;
|
| 1540 |
} catch (RpcException e) {
|
| 1541 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 1542 |
return;
|
| 1543 |
} |
| 1544 |
else if (folder != null) |
| 1545 |
try {
|
| 1546 |
getService().deleteFolder(user.getId(), folder.getId()); |
| 1547 |
} catch (InsufficientPermissionsException e) {
|
| 1548 |
resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
| 1549 |
return;
|
| 1550 |
} catch (ObjectNotFoundException e) {
|
| 1551 |
resp.setStatus(HttpServletResponse.SC_NOT_FOUND); |
| 1552 |
return;
|
| 1553 |
} catch (RpcException e) {
|
| 1554 |
resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| 1555 |
return;
|
| 1556 |
} |
| 1557 |
resp.setStatus(HttpServletResponse.SC_NO_CONTENT); |
| 1558 |
return;
|
| 1559 |
} |
| 1560 |
|
| 1561 |
/**
|
| 1562 |
* Return an InputStream to a JSON representation of the contents
|
| 1563 |
* of this directory.
|
| 1564 |
*
|
| 1565 |
* @param user the user that made the request
|
| 1566 |
* @param folder the specified directory
|
| 1567 |
* @param folderUrl the URL of the folder
|
| 1568 |
* @return an input stream with the rendered contents
|
| 1569 |
* @throws IOException if the response cannot be sent
|
| 1570 |
* @throws ServletException
|
| 1571 |
* @throws InsufficientPermissionsException if the user does not have
|
| 1572 |
* the necessary privileges to read the directory
|
| 1573 |
*/
|
| 1574 |
private InputStream renderJson(User user, FolderDTO folder, String folderUrl) throws IOException, |
| 1575 |
ServletException, InsufficientPermissionsException {
|
| 1576 |
JSONObject json = new JSONObject();
|
| 1577 |
try {
|
| 1578 |
json.put("name", folder.getName()).
|
| 1579 |
put("owner", folder.getOwner().getUsername()).
|
| 1580 |
put("createdBy", folder.getAuditInfo().getCreatedBy().getUsername()).
|
| 1581 |
put("creationDate", folder.getAuditInfo().getCreationDate().getTime()).
|
| 1582 |
put("deleted", folder.isDeleted());
|
| 1583 |
if (folder.getParent() != null) |
| 1584 |
json.put("parent", folder.getParent().getURI());
|
| 1585 |
if (folder.getAuditInfo().getModifiedBy() != null) |
| 1586 |
json.put("modifiedBy", folder.getAuditInfo().getModifiedBy().getUsername()).
|
| 1587 |
put("modificationDate", folder.getAuditInfo().getModificationDate().getTime());
|
| 1588 |
List<JSONObject> subfolders = new ArrayList<JSONObject>(); |
| 1589 |
for (FolderDTO f: folder.getSubfolders())
|
| 1590 |
if (!f.isDeleted()) {
|
| 1591 |
JSONObject j = new JSONObject();
|
| 1592 |
j.put("name", f.getName()).
|
| 1593 |
put("uri", folderUrl + URLEncoder.encode(f.getName(), "UTF-8")); |
| 1594 |
subfolders.add(j); |
| 1595 |
} |
| 1596 |
json.put("folders", subfolders);
|
| 1597 |
List<JSONObject> files = new ArrayList<JSONObject>(); |
| 1598 |
List<FileHeaderDTO> fileHeaders = getService().getFiles(user.getId(), folder.getId(), false); |
| 1599 |
for (FileHeaderDTO f: fileHeaders) {
|
| 1600 |
JSONObject j = new JSONObject();
|
| 1601 |
j.put("name", f.getName()).
|
| 1602 |
put("owner", f.getOwner().getUsername()).
|
| 1603 |
put("deleted", f.isDeleted()).
|
| 1604 |
put("version", f.getVersion()).
|
| 1605 |
put("size", f.getFileSize()).
|
| 1606 |
put("creationDate", f.getAuditInfo().getCreationDate().getTime()).
|
| 1607 |
put("uri", folderUrl + URLEncoder.encode(f.getName(), "UTF-8")); |
| 1608 |
files.add(j); |
| 1609 |
} |
| 1610 |
json.put("files", files);
|
| 1611 |
Set<PermissionDTO> perms = getService().getFolderPermissions(user.getId(), folder.getId());
|
| 1612 |
json.put("permissions", renderJson(perms));
|
| 1613 |
} catch (JSONException e) {
|
| 1614 |
throw new ServletException(e); |
| 1615 |
} catch (ObjectNotFoundException e) {
|
| 1616 |
throw new ServletException(e); |
| 1617 |
} catch (RpcException e) {
|
| 1618 |
throw new ServletException(e); |
| 1619 |
} |
| 1620 |
|
| 1621 |
// Prepare a writer to a buffered area
|
| 1622 |
ByteArrayOutputStream stream = new ByteArrayOutputStream(); |
| 1623 |
OutputStreamWriter osWriter = new OutputStreamWriter(stream, "UTF8"); |
| 1624 |
PrintWriter writer = new PrintWriter(osWriter); |
| 1625 |
|
| 1626 |
// Return an input stream to the underlying bytes
|
| 1627 |
writer.write(json.toString()); |
| 1628 |
writer.flush(); |
| 1629 |
return new ByteArrayInputStream(stream.toByteArray()); |
| 1630 |
} |
| 1631 |
|
| 1632 |
/**
|
| 1633 |
* Return a String with a JSON representation of the metadata
|
| 1634 |
* of the specified file. If an old file body is provided, then
|
| 1635 |
* the metadata of that particular version will be returned.
|
| 1636 |
*
|
| 1637 |
* @param user the user that made the request
|
| 1638 |
* @param file the specified file header
|
| 1639 |
* @param oldBody the version number
|
| 1640 |
* @return the JSON-encoded file
|
| 1641 |
* @throws ServletException
|
| 1642 |
* @throws InsufficientPermissionsException if the user does not have
|
| 1643 |
* the necessary privileges to read the directory
|
| 1644 |
*/
|
| 1645 |
private String renderJson(User user, FileHeaderDTO file, FileBodyDTO oldBody) |
| 1646 |
throws ServletException, InsufficientPermissionsException {
|
| 1647 |
JSONObject json = new JSONObject();
|
| 1648 |
try {
|
| 1649 |
//need to encode file name in order to properly display it in gwt
|
| 1650 |
json.put("name", URLEncoder.encode(file.getName(),"UTF-8")). |
| 1651 |
put("owner", file.getOwner().getUsername()).
|
| 1652 |
put("versioned", file.isVersioned()).
|
| 1653 |
put("version", oldBody != null ? oldBody.getVersion() : file.getVersion()). |
| 1654 |
put("readForAll", file.isReadForAll()).
|
| 1655 |
put("tags", file.getTags()).
|
| 1656 |
put("folder", file.getFolder().getURI()).
|
| 1657 |
put("deleted", file.isDeleted());
|
| 1658 |
if (oldBody != null) |
| 1659 |
json.put("createdBy", oldBody.getAuditInfo().getCreatedBy().getUsername()).
|
| 1660 |
put("creationDate", oldBody.getAuditInfo().getCreationDate().getTime()).
|
| 1661 |
put("modifiedBy", oldBody.getAuditInfo().getModifiedBy().getUsername()).
|
| 1662 |
put("modificationDate", oldBody.getAuditInfo().getModificationDate().getTime()).
|
| 1663 |
put("size", oldBody.getFileSize());
|
| 1664 |
else
|
| 1665 |
json.put("createdBy", file.getAuditInfo().getCreatedBy().getUsername()).
|
| 1666 |
put("creationDate", file.getAuditInfo().getCreationDate().getTime()).
|
| 1667 |
put("modifiedBy", file.getAuditInfo().getModifiedBy().getUsername()).
|
| 1668 |
put("modificationDate", file.getAuditInfo().getModificationDate().getTime()).
|
| 1669 |
put("size", file.getFileSize());
|
| 1670 |
Set<PermissionDTO> perms = getService().getFilePermissions(user.getId(), file.getId());
|
| 1671 |
json.put("permissions", renderJson(perms));
|
| 1672 |
} catch (JSONException e) {
|
| 1673 |
throw new ServletException(e); |
| 1674 |
} catch (ObjectNotFoundException e) {
|
| 1675 |
throw new ServletException(e); |
| 1676 |
} catch (RpcException e) {
|
| 1677 |
throw new ServletException(e); |
| 1678 |
} catch (UnsupportedEncodingException e) { |
| 1679 |
throw new ServletException(e); |
| 1680 |
} |
| 1681 |
|
| 1682 |
return json.toString();
|
| 1683 |
} |
| 1684 |
|
| 1685 |
/**
|
| 1686 |
* Return a String with a JSON representation of the
|
| 1687 |
* specified set of permissions.
|
| 1688 |
*
|
| 1689 |
* @param permissions the set of permissions
|
| 1690 |
* @return the JSON-encoded object
|
| 1691 |
* @throws JSONException
|
| 1692 |
*/
|
| 1693 |
private JSONArray renderJson(Set<PermissionDTO> permissions) throws JSONException { |
| 1694 |
JSONArray perms = new JSONArray();
|
| 1695 |
for (PermissionDTO p: permissions) {
|
| 1696 |
JSONObject permission = new JSONObject();
|
| 1697 |
permission.put("read", p.hasRead()).put("write", p.hasWrite()).put("modifyACL", p.hasModifyACL()); |
| 1698 |
if (p.getUser() != null) |
| 1699 |
permission.put("user", p.getUser().getUsername());
|
| 1700 |
if (p.getGroup() != null) |
| 1701 |
permission.put("group", p.getGroup().getName());
|
| 1702 |
perms.put(permission); |
| 1703 |
} |
| 1704 |
return perms;
|
| 1705 |
} |
| 1706 |
|
| 1707 |
/**
|
| 1708 |
* Retrieves the user who owns the destination namespace, for a
|
| 1709 |
* copy or move request.
|
| 1710 |
*
|
| 1711 |
* @param req the HTTP request
|
| 1712 |
* @return the owner of the namespace
|
| 1713 |
*/
|
| 1714 |
protected User getDestinationOwner(HttpServletRequest req) {
|
| 1715 |
return (User) req.getAttribute(DESTINATION_OWNER_ATTRIBUTE);
|
| 1716 |
} |
| 1717 |
|
| 1718 |
/**
|
| 1719 |
* A helper inner class for updating the progress status of a file upload.
|
| 1720 |
*
|
| 1721 |
* @author kman
|
| 1722 |
*/
|
| 1723 |
public static class StatusProgressListener implements ProgressListener { |
| 1724 |
private int percentLogged = 0; |
| 1725 |
private long bytesTransferred = 0; |
| 1726 |
|
| 1727 |
private long fileSize = -100; |
| 1728 |
|
| 1729 |
private long tenKBRead = -1; |
| 1730 |
|
| 1731 |
private Long userId; |
| 1732 |
|
| 1733 |
private String filename; |
| 1734 |
|
| 1735 |
private ExternalAPI service;
|
| 1736 |
|
| 1737 |
public StatusProgressListener(ExternalAPI aService) {
|
| 1738 |
service = aService; |
| 1739 |
} |
| 1740 |
|
| 1741 |
/**
|
| 1742 |
* Modify the userId.
|
| 1743 |
*
|
| 1744 |
* @param aUserId the userId to set
|
| 1745 |
*/
|
| 1746 |
public void setUserId(Long aUserId) { |
| 1747 |
userId = aUserId; |
| 1748 |
} |
| 1749 |
|
| 1750 |
/**
|
| 1751 |
* Modify the filename.
|
| 1752 |
*
|
| 1753 |
* @param aFilename the filename to set
|
| 1754 |
*/
|
| 1755 |
public void setFilename(String aFilename) { |
| 1756 |
filename = aFilename; |
| 1757 |
} |
| 1758 |
|
| 1759 |
public void update(long bytesRead, long contentLength, int items) { |
| 1760 |
//monitoring per percent of bytes uploaded
|
| 1761 |
bytesTransferred = bytesRead; |
| 1762 |
if (fileSize != contentLength)
|
| 1763 |
fileSize = contentLength; |
| 1764 |
int percent = new Long(bytesTransferred * 100 / fileSize).intValue(); |
| 1765 |
|
| 1766 |
if (percent < 5 || percent % TRACK_PROGRESS_PERCENT == 0 ) |
| 1767 |
if (percent != percentLogged){
|
| 1768 |
percentLogged = percent; |
| 1769 |
try {
|
| 1770 |
if (userId != null && filename != null) |
| 1771 |
service.createFileUploadProgress(userId, filename, bytesTransferred, fileSize); |
| 1772 |
} catch (ObjectNotFoundException e) {
|
| 1773 |
// Swallow the exception since it is going to be caught
|
| 1774 |
// by previously called methods
|
| 1775 |
} |
| 1776 |
} |
| 1777 |
} |
| 1778 |
} |
| 1779 |
} |