root / src / gr / ebs / gss / server / rest / FilesHandler.java @ 6567092b
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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 static gr.ebs.gss.server.configuration.GSSConfigurationFactory.getConfiguration; |
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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.Login; |
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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.ejb.TransactionHelper; |
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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.Arrays; |
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import java.util.Collection; |
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import java.util.Date; |
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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 java.util.concurrent.Callable; |
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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.Cookie; |
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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.codec.binary.Base64; |
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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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private void updateAccounting(final User user, final Date date, final long bandwidthDiff) { |
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try {
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new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
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@Override
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public Void call() throws Exception { |
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getService().updateAccounting(user, date, bandwidthDiff); |
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return null; |
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} |
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}); |
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} catch (RuntimeException e) { |
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throw e;
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} catch (Exception e) { |
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// updateAccounting() doesn't throw any checked exceptions
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assert false; |
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} |
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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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// Check for a valid authentication cookie.
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if (req.getCookies() != null) { |
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boolean found = false; |
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for (Cookie cookie : req.getCookies())
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if (Login.AUTH_COOKIE.equals(cookie.getName())) {
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String cookieauth = cookie.getValue();
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int sepIndex = cookieauth.indexOf(Login.COOKIE_SEPARATOR);
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if (sepIndex == -1) { |
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handleAuthFailure(req, resp); |
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return;
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} |
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String username = URLDecoder.decode(cookieauth.substring(0, sepIndex), "US-ASCII"); |
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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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String token = cookieauth.substring(sepIndex + 1); |
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if (user.getAuthToken() == null) { |
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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if (!Arrays.equals(user.getAuthToken(), Base64.decodeBase64(token))) { |
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resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
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return;
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} |
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found = true;
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break;
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} |
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if (!found) {
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handleAuthFailure(req, resp); |
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return;
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} |
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} else {
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handleAuthFailure(req, resp); |
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return;
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} |
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} else {
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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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} |
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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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} |
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else if(!checkIfModifiedSince(req, resp, folder)) |
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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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|
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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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} else
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// Set the folder X-GSS-Metadata header.
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try {
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resp.setHeader("X-GSS-Metadata", renderJsonMetadata(user, folder));
|
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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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} |
442 |
|
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ServletOutputStream ostream = null;
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PrintWriter writer = null; |
445 |
|
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if (content)
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try {
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ostream = resp.getOutputStream(); |
449 |
} catch (IllegalStateException e) { |
450 |
// If it fails, we try to get a Writer instead if we're
|
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// trying to serve a text file
|
452 |
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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} |
459 |
|
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if (folder != null |
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|| (ranges == null || ranges.isEmpty())
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&& req.getHeader("Range") == null |
463 |
|| 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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} |
479 |
|
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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
|
484 |
try {
|
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renderResult = renderJson(user, folder); |
486 |
} catch (InsufficientPermissionsException e) {
|
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resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
488 |
return;
|
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} |
490 |
// 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); |
494 |
} catch (IllegalStateException e) { |
495 |
// Silent catch
|
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} |
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try {
|
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if(file != null) |
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if (needsContentDisposition(req))
|
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resp.setHeader("Content-Disposition","attachment; filename*=UTF-8''"+getDispositionFilename(file)); |
501 |
else
|
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resp.setHeader("Content-Disposition","inline; filename*=UTF-8''"+getDispositionFilename(file)); |
503 |
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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if (file!=null) updateAccounting(owner, new Date(), contentLength); |
508 |
} catch (ObjectNotFoundException e) {
|
509 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
510 |
return;
|
511 |
} catch (InsufficientPermissionsException e) {
|
512 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
513 |
return;
|
514 |
} catch (RpcException e) {
|
515 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
516 |
return;
|
517 |
} |
518 |
} |
519 |
} else {
|
520 |
if (ranges == null || ranges.isEmpty()) |
521 |
return;
|
522 |
// Partial content response.
|
523 |
resp.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); |
524 |
|
525 |
if (ranges.size() == 1) { |
526 |
Range range = (Range) ranges.get(0);
|
527 |
resp.addHeader("Content-Range", "bytes " |
528 |
+ range.start |
529 |
+ "-" + range.end + "/" |
530 |
+ range.length); |
531 |
long length = range.end - range.start + 1; |
532 |
if (length < Integer.MAX_VALUE) |
533 |
resp.setContentLength((int) length);
|
534 |
else
|
535 |
// Set the content-length as String to be able to use a long
|
536 |
resp.setHeader("content-length", "" + length); |
537 |
|
538 |
if (contentType != null) { |
539 |
if (logger.isDebugEnabled())
|
540 |
logger.debug("contentType='" + contentType + "'"); |
541 |
resp.setContentType(contentType); |
542 |
} |
543 |
|
544 |
if (content) {
|
545 |
try {
|
546 |
resp.setBufferSize(output); |
547 |
} catch (IllegalStateException e) { |
548 |
// Silent catch
|
549 |
} |
550 |
try {
|
551 |
if (ostream != null) |
552 |
copy(file, ostream, range, req, oldBody); |
553 |
else
|
554 |
copy(file, writer, range, req, oldBody); |
555 |
updateAccounting(owner, new Date(), contentLength); |
556 |
} catch (ObjectNotFoundException e) {
|
557 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
558 |
return;
|
559 |
} catch (InsufficientPermissionsException e) {
|
560 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
561 |
return;
|
562 |
} catch (RpcException e) {
|
563 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
564 |
return;
|
565 |
} |
566 |
} |
567 |
} else {
|
568 |
resp.setContentType("multipart/byteranges; boundary=" + mimeSeparation);
|
569 |
if (content) {
|
570 |
try {
|
571 |
resp.setBufferSize(output); |
572 |
} catch (IllegalStateException e) { |
573 |
// Silent catch
|
574 |
} |
575 |
try {
|
576 |
if (ostream != null) |
577 |
copy(file, ostream, ranges.iterator(), contentType, req, oldBody); |
578 |
else
|
579 |
copy(file, writer, ranges.iterator(), contentType, req, oldBody); |
580 |
updateAccounting(owner, new Date(), contentLength); |
581 |
} catch (ObjectNotFoundException e) {
|
582 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
583 |
return;
|
584 |
} catch (InsufficientPermissionsException e) {
|
585 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
586 |
return;
|
587 |
} catch (RpcException e) {
|
588 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
589 |
return;
|
590 |
} |
591 |
} |
592 |
} |
593 |
} |
594 |
} |
595 |
|
596 |
/**
|
597 |
* Handles an authentication failure. If no Authorization or Date request
|
598 |
* parameters and no Authorization, Date or X-GSS-Date headers were present,
|
599 |
* this is a browser request, so redirect to login and then let the user get
|
600 |
* back to the file. Otherwise it's a bogus client request and Forbidden is
|
601 |
* returned.
|
602 |
*/
|
603 |
private void handleAuthFailure(HttpServletRequest req, HttpServletResponse resp) throws IOException { |
604 |
if (req.getParameter(AUTHORIZATION_PARAMETER) == null && |
605 |
req.getParameter(DATE_PARAMETER) == null &&
|
606 |
req.getHeader(AUTHORIZATION_HEADER) == null &&
|
607 |
req.getDateHeader(DATE_HEADER) == -1 &&
|
608 |
req.getDateHeader(GSS_DATE_HEADER) == -1)
|
609 |
resp.sendRedirect(getConfiguration().getString("loginUrl") +
|
610 |
"?next=" + req.getRequestURL().toString());
|
611 |
else
|
612 |
resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
613 |
} |
614 |
|
615 |
/**
|
616 |
* Return the filename of the specified file properly formatted for
|
617 |
* including in the Content-Disposition header.
|
618 |
*/
|
619 |
private String getDispositionFilename(FileHeaderDTO file) throws UnsupportedEncodingException { |
620 |
return URLEncoder.encode(file.getName(),"UTF-8").replaceAll("\\+", "%20"); |
621 |
} |
622 |
|
623 |
/**
|
624 |
* Determines whether the user agent needs the Content-Disposition
|
625 |
* header to be set, in order to properly download a file.
|
626 |
*
|
627 |
* @param req the HTTP request
|
628 |
* @return true if the Content-Disposition HTTP header must be set
|
629 |
*/
|
630 |
private boolean needsContentDisposition(HttpServletRequest req) { |
631 |
/*String agent = req.getHeader("user-agent");
|
632 |
if (agent != null && agent.contains("MSIE"))
|
633 |
return true;*/
|
634 |
String dl = req.getParameter("dl"); |
635 |
if ("1".equals(dl)) |
636 |
return true; |
637 |
return false; |
638 |
} |
639 |
|
640 |
/**
|
641 |
* Sends a progress update on the amount of bytes received until now for
|
642 |
* a file that the current user is currently uploading.
|
643 |
*
|
644 |
* @param req the HTTP request
|
645 |
* @param resp the HTTP response
|
646 |
* @param parameter the value for the progress request parameter
|
647 |
* @param user the current user
|
648 |
* @param file the file being uploaded, or null if the request is about a new file
|
649 |
* @throws IOException if an I/O error occurs
|
650 |
*/
|
651 |
private void serveProgress(HttpServletRequest req, HttpServletResponse resp, |
652 |
String parameter, User user, FileHeaderDTO file) throws IOException { |
653 |
String filename = file == null ? parameter : file.getName(); |
654 |
try {
|
655 |
FileUploadStatus status = getService().getFileUploadStatus(user.getId(), filename); |
656 |
if (status == null) { |
657 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
658 |
return;
|
659 |
} |
660 |
JSONObject json = new JSONObject();
|
661 |
json.put("bytesUploaded", status.getBytesUploaded()).
|
662 |
put("bytesTotal", status.getFileSize());
|
663 |
sendJson(req, resp, json.toString()); |
664 |
|
665 |
// Workaround for IE's broken caching behavior.
|
666 |
resp.setHeader("Expires", "-1"); |
667 |
return;
|
668 |
} catch (RpcException e) {
|
669 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
670 |
return;
|
671 |
} catch (JSONException e) {
|
672 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
673 |
return;
|
674 |
} |
675 |
} |
676 |
|
677 |
/**
|
678 |
* Server a POST request to create/modify a file or folder.
|
679 |
*
|
680 |
* @param req the HTTP request
|
681 |
* @param resp the HTTP response
|
682 |
* @exception IOException if an input/output error occurs
|
683 |
*/
|
684 |
void postResource(HttpServletRequest req, HttpServletResponse resp) throws IOException { |
685 |
boolean authDeferred = getAuthDeferred(req);
|
686 |
if (!authDeferred && req.getParameterMap().size() > 1) { |
687 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST); |
688 |
return;
|
689 |
} |
690 |
String path = getInnerPath(req, PATH_FILES);
|
691 |
path = path.endsWith("/")? path: path + '/'; |
692 |
try {
|
693 |
path = URLDecoder.decode(path, "UTF-8"); |
694 |
} catch (IllegalArgumentException e) { |
695 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
696 |
return;
|
697 |
} |
698 |
// We only defer authenticating multipart POST requests.
|
699 |
if (authDeferred) {
|
700 |
if (!ServletFileUpload.isMultipartContent(req)) {
|
701 |
resp.sendError(HttpServletResponse.SC_FORBIDDEN); |
702 |
return;
|
703 |
} |
704 |
handleMultipart(req, resp, path); |
705 |
return;
|
706 |
} |
707 |
|
708 |
String newName = req.getParameter(NEW_FOLDER_PARAMETER);
|
709 |
boolean hasUpdateParam = req.getParameterMap().containsKey(RESOURCE_UPDATE_PARAMETER);
|
710 |
boolean hasTrashParam = req.getParameterMap().containsKey(RESOURCE_TRASH_PARAMETER);
|
711 |
boolean hasRestoreParam = req.getParameterMap().containsKey(RESOURCE_RESTORE_PARAMETER);
|
712 |
String copyTo = req.getParameter(RESOURCE_COPY_PARAMETER);
|
713 |
String moveTo = req.getParameter(RESOURCE_MOVE_PARAMETER);
|
714 |
String restoreVersion = req.getParameter(RESTORE_VERSION_PARAMETER);
|
715 |
|
716 |
if (newName != null) |
717 |
createFolder(req, resp, path, newName); |
718 |
else if (hasUpdateParam) |
719 |
updateResource(req, resp, path); |
720 |
else if (hasTrashParam) |
721 |
trashResource(req, resp, path); |
722 |
else if (hasRestoreParam) |
723 |
restoreResource(req, resp, path); |
724 |
else if (copyTo != null) |
725 |
copyResource(req, resp, path, copyTo); |
726 |
else if (moveTo != null) |
727 |
moveResource(req, resp, path, moveTo); |
728 |
else if (restoreVersion != null) |
729 |
restoreVersion(req, resp, path, restoreVersion); |
730 |
else
|
731 |
// IE with Gears uses POST for multiple uploads.
|
732 |
putResource(req, resp); |
733 |
} |
734 |
|
735 |
/**
|
736 |
* Restores a previous version for a file.
|
737 |
*
|
738 |
* @param req the HTTP request
|
739 |
* @param resp the HTTP response
|
740 |
* @param path the resource path
|
741 |
* @param version the version number to restore
|
742 |
* @throws IOException if an I/O error occurs
|
743 |
*/
|
744 |
private void restoreVersion(HttpServletRequest req, HttpServletResponse resp, String path, String version) throws IOException { |
745 |
final User user = getUser(req);
|
746 |
User owner = getOwner(req); |
747 |
Object resource = null; |
748 |
try {
|
749 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
750 |
} catch (ObjectNotFoundException e) {
|
751 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
752 |
return;
|
753 |
} catch (RpcException e) {
|
754 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
755 |
return;
|
756 |
} |
757 |
if (resource instanceof FolderDTO) { |
758 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
759 |
return;
|
760 |
} |
761 |
|
762 |
try {
|
763 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
764 |
final int oldVersion = Integer.parseInt(version); |
765 |
|
766 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
767 |
@Override
|
768 |
public Void call() throws Exception { |
769 |
getService().restoreVersion(user.getId(), file.getId(), oldVersion); |
770 |
return null; |
771 |
} |
772 |
}); |
773 |
} catch (InsufficientPermissionsException e) {
|
774 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
775 |
} catch (ObjectNotFoundException e) {
|
776 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
777 |
} catch (RpcException e) {
|
778 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
779 |
} catch (GSSIOException e) {
|
780 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
781 |
} catch (QuotaExceededException e) {
|
782 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
783 |
} catch (NumberFormatException e) { |
784 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
785 |
} catch (Exception e) { |
786 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
787 |
} |
788 |
} |
789 |
|
790 |
/**
|
791 |
* A method for handling multipart POST requests for uploading
|
792 |
* files from browser-based JavaScript clients.
|
793 |
*
|
794 |
* @param request the HTTP request
|
795 |
* @param response the HTTP response
|
796 |
* @param path the resource path
|
797 |
* @throws IOException in case an error occurs writing to the
|
798 |
* response stream
|
799 |
*/
|
800 |
private void handleMultipart(HttpServletRequest request, HttpServletResponse response, String path) throws IOException { |
801 |
if (logger.isDebugEnabled())
|
802 |
logger.debug("Multipart POST for resource: " + path);
|
803 |
|
804 |
User owner = getOwner(request); |
805 |
boolean exists = true; |
806 |
Object resource = null; |
807 |
FileHeaderDTO file = null;
|
808 |
try {
|
809 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
810 |
} catch (ObjectNotFoundException e) {
|
811 |
exists = false;
|
812 |
} catch (RpcException e) {
|
813 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
814 |
return;
|
815 |
} |
816 |
|
817 |
if (exists)
|
818 |
if (resource instanceof FileHeaderDTO) { |
819 |
file = (FileHeaderDTO) resource; |
820 |
if (file.isDeleted()) {
|
821 |
response.sendError(HttpServletResponse.SC_CONFLICT, file.getName() + " is in the trash");
|
822 |
return;
|
823 |
} |
824 |
} else {
|
825 |
response.sendError(HttpServletResponse.SC_CONFLICT, path + " is a folder");
|
826 |
return;
|
827 |
} |
828 |
|
829 |
Object parent;
|
830 |
String parentPath = null; |
831 |
try {
|
832 |
parentPath = getParentPath(path); |
833 |
parent = getService().getResourceAtPath(owner.getId(), parentPath, true);
|
834 |
} catch (ObjectNotFoundException e) {
|
835 |
response.sendError(HttpServletResponse.SC_NOT_FOUND, parentPath); |
836 |
return;
|
837 |
} catch (RpcException e) {
|
838 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
839 |
return;
|
840 |
} |
841 |
if (!(parent instanceof FolderDTO)) { |
842 |
response.sendError(HttpServletResponse.SC_CONFLICT); |
843 |
return;
|
844 |
} |
845 |
final FolderDTO folder = (FolderDTO) parent;
|
846 |
final String fileName = getLastElement(path); |
847 |
|
848 |
FileItemIterator iter; |
849 |
File uploadedFile = null; |
850 |
try {
|
851 |
// Create a new file upload handler.
|
852 |
ServletFileUpload upload = new ServletFileUpload();
|
853 |
StatusProgressListener progressListener = new StatusProgressListener(getService());
|
854 |
upload.setProgressListener(progressListener); |
855 |
iter = upload.getItemIterator(request); |
856 |
String dateParam = null; |
857 |
String auth = null; |
858 |
while (iter.hasNext()) {
|
859 |
FileItemStream item = iter.next(); |
860 |
String name = item.getFieldName();
|
861 |
InputStream stream = item.openStream();
|
862 |
if (item.isFormField()) {
|
863 |
final String value = Streams.asString(stream); |
864 |
if (name.equals(DATE_PARAMETER))
|
865 |
dateParam = value; |
866 |
else if (name.equals(AUTHORIZATION_PARAMETER)) |
867 |
auth = value; |
868 |
|
869 |
if (logger.isDebugEnabled())
|
870 |
logger.debug(name + ":" + value);
|
871 |
} else {
|
872 |
// Fetch the timestamp used to guard against replay attacks.
|
873 |
if (dateParam == null) { |
874 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, "No Date parameter");
|
875 |
return;
|
876 |
} |
877 |
|
878 |
long timestamp;
|
879 |
try {
|
880 |
timestamp = DateUtil.parseDate(dateParam).getTime(); |
881 |
} catch (DateParseException e) {
|
882 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage()); |
883 |
return;
|
884 |
} |
885 |
if (!isTimeValid(timestamp)) {
|
886 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
887 |
return;
|
888 |
} |
889 |
|
890 |
// Fetch the Authorization parameter and find the user specified in it.
|
891 |
if (auth == null) { |
892 |
response.sendError(HttpServletResponse.SC_FORBIDDEN, "No Authorization parameter");
|
893 |
return;
|
894 |
} |
895 |
String[] authParts = auth.split(" "); |
896 |
if (authParts.length != 2) { |
897 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
898 |
return;
|
899 |
} |
900 |
String username = authParts[0]; |
901 |
String signature = authParts[1]; |
902 |
User user = null;
|
903 |
try {
|
904 |
user = getService().findUser(username); |
905 |
} catch (RpcException e) {
|
906 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
907 |
return;
|
908 |
} |
909 |
if (user == null) { |
910 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
911 |
return;
|
912 |
} |
913 |
request.setAttribute(USER_ATTRIBUTE, user); |
914 |
|
915 |
// Remove the servlet path from the request URI.
|
916 |
String p = request.getRequestURI();
|
917 |
String servletPath = request.getContextPath() + request.getServletPath();
|
918 |
p = p.substring(servletPath.length()); |
919 |
// Validate the signature in the Authorization parameter.
|
920 |
String data = request.getMethod() + dateParam + p;
|
921 |
if (!isSignatureValid(signature, user, data)) {
|
922 |
response.sendError(HttpServletResponse.SC_FORBIDDEN); |
923 |
return;
|
924 |
} |
925 |
|
926 |
progressListener.setUserId(user.getId()); |
927 |
progressListener.setFilename(fileName); |
928 |
final String contentType = item.getContentType(); |
929 |
|
930 |
try {
|
931 |
uploadedFile = getService().uploadFile(stream, user.getId()); |
932 |
} catch (IOException ex) { |
933 |
throw new GSSIOException(ex, false); |
934 |
} |
935 |
FileHeaderDTO fileDTO = null;
|
936 |
final File upf = uploadedFile; |
937 |
final FileHeaderDTO f = file;
|
938 |
final User u = user;
|
939 |
if (file == null) |
940 |
fileDTO = new TransactionHelper<FileHeaderDTO>().tryExecute(new Callable<FileHeaderDTO>() { |
941 |
@Override
|
942 |
public FileHeaderDTO call() throws Exception { |
943 |
return getService().createFile(u.getId(), folder.getId(), fileName, contentType, upf.getCanonicalFile().length(), upf.getAbsolutePath());
|
944 |
} |
945 |
}); |
946 |
else
|
947 |
fileDTO = new TransactionHelper<FileHeaderDTO>().tryExecute(new Callable<FileHeaderDTO>() { |
948 |
@Override
|
949 |
public FileHeaderDTO call() throws Exception { |
950 |
return getService().updateFileContents(u.getId(), f.getId(), contentType, upf.getCanonicalFile().length(), upf.getAbsolutePath());
|
951 |
} |
952 |
}); |
953 |
updateAccounting(owner, new Date(), fileDTO.getFileSize()); |
954 |
getService().removeFileUploadProgress(user.getId(), fileName); |
955 |
} |
956 |
} |
957 |
// We can't return 204 here since GWT's onSubmitComplete won't fire.
|
958 |
response.setContentType("text/html");
|
959 |
response.getWriter().print("<pre></pre>");
|
960 |
} catch (FileUploadException e) {
|
961 |
String error = "Error while uploading file"; |
962 |
logger.error(error, e); |
963 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
964 |
} catch (GSSIOException e) {
|
965 |
if (uploadedFile != null && uploadedFile.exists()) |
966 |
uploadedFile.delete(); |
967 |
String error = "Error while uploading file"; |
968 |
if (e.logAsError())
|
969 |
logger.error(error, e); |
970 |
else
|
971 |
logger.debug(error, e); |
972 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
973 |
} catch (DuplicateNameException e) {
|
974 |
if (uploadedFile != null && uploadedFile.exists()) |
975 |
uploadedFile.delete(); |
976 |
String error = "The specified file name already exists in this folder"; |
977 |
logger.error(error, e); |
978 |
response.sendError(HttpServletResponse.SC_CONFLICT, error); |
979 |
|
980 |
} catch (InsufficientPermissionsException e) {
|
981 |
if (uploadedFile != null && uploadedFile.exists()) |
982 |
uploadedFile.delete(); |
983 |
String error = "You don't have the necessary permissions"; |
984 |
logger.error(error, e); |
985 |
response.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, error); |
986 |
|
987 |
} catch (QuotaExceededException e) {
|
988 |
if (uploadedFile != null && uploadedFile.exists()) |
989 |
uploadedFile.delete(); |
990 |
String error = "Not enough free space available"; |
991 |
if (logger.isDebugEnabled())
|
992 |
logger.debug(error, e); |
993 |
response.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, error); |
994 |
|
995 |
} catch (ObjectNotFoundException e) {
|
996 |
if (uploadedFile != null && uploadedFile.exists()) |
997 |
uploadedFile.delete(); |
998 |
String error = "A specified object was not found"; |
999 |
logger.error(error, e); |
1000 |
response.sendError(HttpServletResponse.SC_NOT_FOUND, error); |
1001 |
} catch (RpcException e) {
|
1002 |
if (uploadedFile != null && uploadedFile.exists()) |
1003 |
uploadedFile.delete(); |
1004 |
String error = "An error occurred while communicating with the service"; |
1005 |
logger.error(error, e); |
1006 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
1007 |
} catch (Exception e) { |
1008 |
if (uploadedFile != null && uploadedFile.exists()) |
1009 |
uploadedFile.delete(); |
1010 |
String error = "An internal server error occurred"; |
1011 |
logger.error(error, e); |
1012 |
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, error); |
1013 |
} |
1014 |
} |
1015 |
|
1016 |
/**
|
1017 |
* Move the resource in the specified path to the specified destination.
|
1018 |
*
|
1019 |
* @param req the HTTP request
|
1020 |
* @param resp the HTTP response
|
1021 |
* @param path the path of the resource
|
1022 |
* @param moveTo the destination of the move procedure
|
1023 |
* @throws IOException if an input/output error occurs
|
1024 |
*/
|
1025 |
private void moveResource(HttpServletRequest req, HttpServletResponse resp, String path, String moveTo) throws IOException { |
1026 |
final User user = getUser(req);
|
1027 |
User owner = getOwner(req); |
1028 |
Object resource = null; |
1029 |
try {
|
1030 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
1031 |
} catch (ObjectNotFoundException e) {
|
1032 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
1033 |
return;
|
1034 |
} catch (RpcException e) {
|
1035 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1036 |
return;
|
1037 |
} |
1038 |
|
1039 |
String destination = null; |
1040 |
User destOwner = null;
|
1041 |
boolean exists = true; |
1042 |
try {
|
1043 |
destination = getDestinationPath(req, encodePath(moveTo)); |
1044 |
destination = URLDecoder.decode(destination, "UTF-8"); |
1045 |
destOwner = getDestinationOwner(req); |
1046 |
getService().getResourceAtPath(destOwner.getId(), destination, true);
|
1047 |
} catch (ObjectNotFoundException e) {
|
1048 |
exists = false;
|
1049 |
} catch (URISyntaxException e) { |
1050 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
1051 |
return;
|
1052 |
} catch (RpcException e) {
|
1053 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1054 |
return;
|
1055 |
} |
1056 |
if (exists) {
|
1057 |
resp.sendError(HttpServletResponse.SC_CONFLICT, destination + " already exists");
|
1058 |
return;
|
1059 |
} |
1060 |
|
1061 |
try {
|
1062 |
final User dOwner = destOwner;
|
1063 |
final String dest = destination; |
1064 |
if (resource instanceof FolderDTO) { |
1065 |
final FolderDTO folder = (FolderDTO) resource;
|
1066 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1067 |
@Override
|
1068 |
public Void call() throws Exception { |
1069 |
getService().moveFolderToPath(user.getId(), dOwner.getId(), folder.getId(), dest); |
1070 |
return null; |
1071 |
} |
1072 |
}); |
1073 |
} else {
|
1074 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
1075 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1076 |
@Override
|
1077 |
public Void call() throws Exception { |
1078 |
getService().moveFileToPath(user.getId(), dOwner.getId(), file.getId(), dest); |
1079 |
return null; |
1080 |
} |
1081 |
}); |
1082 |
|
1083 |
} |
1084 |
} catch (InsufficientPermissionsException e) {
|
1085 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1086 |
} catch (ObjectNotFoundException e) {
|
1087 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
1088 |
} catch (RpcException e) {
|
1089 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1090 |
} catch (DuplicateNameException e) {
|
1091 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
1092 |
} catch (GSSIOException e) {
|
1093 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
1094 |
} catch (QuotaExceededException e) {
|
1095 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
1096 |
} catch (Exception e) { |
1097 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1098 |
} |
1099 |
} |
1100 |
|
1101 |
/**
|
1102 |
* Copy the resource in the specified path to the specified destination.
|
1103 |
*
|
1104 |
* @param req the HTTP request
|
1105 |
* @param resp the HTTP response
|
1106 |
* @param path the path of the resource
|
1107 |
* @param copyTo the destination of the copy procedure
|
1108 |
* @throws IOException if an input/output error occurs
|
1109 |
*/
|
1110 |
private void copyResource(HttpServletRequest req, HttpServletResponse resp, String path, String copyTo) throws IOException { |
1111 |
final User user = getUser(req);
|
1112 |
User owner = getOwner(req); |
1113 |
Object resource = null; |
1114 |
try {
|
1115 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
1116 |
} catch (ObjectNotFoundException e) {
|
1117 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
1118 |
return;
|
1119 |
} catch (RpcException e) {
|
1120 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1121 |
return;
|
1122 |
} |
1123 |
|
1124 |
String destination = null; |
1125 |
User destOwner = null;
|
1126 |
boolean exists = true; |
1127 |
try {
|
1128 |
String destinationEncoded = getDestinationPath(req, encodePath(copyTo));
|
1129 |
destination = URLDecoder.decode(destinationEncoded, "UTF-8"); |
1130 |
destOwner = getDestinationOwner(req); |
1131 |
getService().getResourceAtPath(destOwner.getId(), destinationEncoded, true);
|
1132 |
} catch (ObjectNotFoundException e) {
|
1133 |
exists = false;
|
1134 |
} catch (URISyntaxException e) { |
1135 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
1136 |
return;
|
1137 |
} catch (RpcException e) {
|
1138 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1139 |
return;
|
1140 |
} |
1141 |
if (exists) {
|
1142 |
resp.sendError(HttpServletResponse.SC_CONFLICT, destination + " already exists");
|
1143 |
return;
|
1144 |
} |
1145 |
|
1146 |
try {
|
1147 |
final User dOwner = destOwner;
|
1148 |
final String dest = destination; |
1149 |
if (resource instanceof FolderDTO) { |
1150 |
final FolderDTO folder = (FolderDTO) resource;
|
1151 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1152 |
@Override
|
1153 |
public Void call() throws Exception { |
1154 |
getService().copyFolderStructureToPath(user.getId(), dOwner.getId(), folder.getId(), dest); |
1155 |
return null; |
1156 |
} |
1157 |
}); |
1158 |
} else {
|
1159 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
1160 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1161 |
@Override
|
1162 |
public Void call() throws Exception { |
1163 |
getService().copyFileToPath(user.getId(), dOwner.getId(), file.getId(), dest); |
1164 |
return null; |
1165 |
} |
1166 |
}); |
1167 |
} |
1168 |
} catch (InsufficientPermissionsException e) {
|
1169 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1170 |
} catch (ObjectNotFoundException e) {
|
1171 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
1172 |
} catch (RpcException e) {
|
1173 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1174 |
} catch (DuplicateNameException e) {
|
1175 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
1176 |
} catch (GSSIOException e) {
|
1177 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); |
1178 |
} catch (QuotaExceededException e) {
|
1179 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
1180 |
} catch (Exception e) { |
1181 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, destination); |
1182 |
} |
1183 |
} |
1184 |
|
1185 |
private String encodePath(String path) throws UnsupportedEncodingException{ |
1186 |
StringTokenizer str = new StringTokenizer(path, "/:", true); |
1187 |
String result = new String(); |
1188 |
while(str.hasMoreTokens()){
|
1189 |
String token = str.nextToken();
|
1190 |
if(!token.equals("/") && !token.equals(":")) |
1191 |
token = URLEncoder.encode(token,"UTF-8"); |
1192 |
result = result + token; |
1193 |
} |
1194 |
return result;
|
1195 |
} |
1196 |
/**
|
1197 |
* A helper method that extracts the relative resource path,
|
1198 |
* after removing the 'files' namespace.
|
1199 |
* The path returned is <i>not</i> URL-decoded.
|
1200 |
*
|
1201 |
* @param req the HTTP request
|
1202 |
* @param path the specified path
|
1203 |
* @return the path relative to the root folder
|
1204 |
* @throws URISyntaxException
|
1205 |
* @throws RpcException in case an error occurs while communicating
|
1206 |
* with the backend
|
1207 |
* @throws UnsupportedEncodingException
|
1208 |
*/
|
1209 |
private String getDestinationPath(HttpServletRequest req, String path) throws URISyntaxException, RpcException, UnsupportedEncodingException { |
1210 |
URI uri = new URI(path); |
1211 |
String dest = uri.getRawPath();
|
1212 |
// Remove the context path from the destination URI.
|
1213 |
String contextPath = req.getContextPath();
|
1214 |
if (!dest.startsWith(contextPath))
|
1215 |
throw new URISyntaxException(dest, "Destination path does not start with " + contextPath); |
1216 |
dest = dest.substring(contextPath.length()); |
1217 |
// Remove the servlet path from the destination URI.
|
1218 |
String servletPath = req.getServletPath();
|
1219 |
if (!dest.startsWith(servletPath))
|
1220 |
throw new URISyntaxException(dest, "Destination path does not start with " + servletPath); |
1221 |
dest = dest.substring(servletPath.length()); |
1222 |
// Strip the username part
|
1223 |
if (dest.length() < 2) |
1224 |
throw new URISyntaxException(dest, "No username in the destination URI"); |
1225 |
int slash = dest.substring(1).indexOf('/'); |
1226 |
if (slash == -1) |
1227 |
throw new URISyntaxException(dest, "No username in the destination URI"); |
1228 |
// Decode the user to get the proper characters (mainly the @)
|
1229 |
String owner = URLDecoder.decode(dest.substring(1, slash + 1), "UTF-8"); |
1230 |
User o; |
1231 |
o = getService().findUser(owner); |
1232 |
if (o == null) |
1233 |
throw new URISyntaxException(dest, "User " + owner + " not found"); |
1234 |
|
1235 |
req.setAttribute(DESTINATION_OWNER_ATTRIBUTE, o); |
1236 |
dest = dest.substring(slash + 1);
|
1237 |
|
1238 |
// Chop the resource namespace part
|
1239 |
dest = dest.substring(RequestHandler.PATH_FILES.length()); |
1240 |
|
1241 |
dest = dest.endsWith("/")? dest: dest + '/'; |
1242 |
return dest;
|
1243 |
} |
1244 |
|
1245 |
/**
|
1246 |
* Move the resource in the specified path to the trash bin.
|
1247 |
*
|
1248 |
* @param req the HTTP request
|
1249 |
* @param resp the HTTP response
|
1250 |
* @param path the path of the resource
|
1251 |
* @throws IOException if an input/output error occurs
|
1252 |
*/
|
1253 |
private void trashResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
1254 |
final User user = getUser(req);
|
1255 |
User owner = getOwner(req); |
1256 |
Object resource = null; |
1257 |
try {
|
1258 |
resource = getService().getResourceAtPath(owner.getId(), path, true);
|
1259 |
} catch (ObjectNotFoundException e) {
|
1260 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
1261 |
return;
|
1262 |
} catch (RpcException e) {
|
1263 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1264 |
return;
|
1265 |
} |
1266 |
|
1267 |
try {
|
1268 |
if (resource instanceof FolderDTO) { |
1269 |
final FolderDTO folder = (FolderDTO) resource;
|
1270 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1271 |
@Override
|
1272 |
public Void call() throws Exception { |
1273 |
getService().moveFolderToTrash(user.getId(), folder.getId()); |
1274 |
return null; |
1275 |
} |
1276 |
}); |
1277 |
} else {
|
1278 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
1279 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1280 |
@Override
|
1281 |
public Void call() throws Exception { |
1282 |
getService().moveFileToTrash(user.getId(), file.getId()); |
1283 |
return null; |
1284 |
} |
1285 |
}); |
1286 |
} |
1287 |
} catch (InsufficientPermissionsException e) {
|
1288 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1289 |
} catch (ObjectNotFoundException e) {
|
1290 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
1291 |
} catch (RpcException e) {
|
1292 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1293 |
} catch (Exception e) { |
1294 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1295 |
} |
1296 |
} |
1297 |
|
1298 |
/**
|
1299 |
* Restore the resource in the specified path from the trash bin.
|
1300 |
*
|
1301 |
* @param req the HTTP request
|
1302 |
* @param resp the HTTP response
|
1303 |
* @param path the path of the resource
|
1304 |
* @throws IOException if an input/output error occurs
|
1305 |
*/
|
1306 |
private void restoreResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
1307 |
final User user = getUser(req);
|
1308 |
User owner = getOwner(req); |
1309 |
Object resource = null; |
1310 |
try {
|
1311 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
1312 |
} catch (ObjectNotFoundException e) {
|
1313 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
1314 |
return;
|
1315 |
} catch (RpcException e) {
|
1316 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1317 |
return;
|
1318 |
} |
1319 |
|
1320 |
try {
|
1321 |
if (resource instanceof FolderDTO) { |
1322 |
final FolderDTO folder = (FolderDTO) resource;
|
1323 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1324 |
@Override
|
1325 |
public Void call() throws Exception { |
1326 |
getService().removeFolderFromTrash(user.getId(), folder.getId()); |
1327 |
return null; |
1328 |
} |
1329 |
}); |
1330 |
} else {
|
1331 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
1332 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1333 |
@Override
|
1334 |
public Void call() throws Exception { |
1335 |
getService().removeFileFromTrash(user.getId(), file.getId()); |
1336 |
return null; |
1337 |
} |
1338 |
}); |
1339 |
} |
1340 |
} catch (InsufficientPermissionsException e) {
|
1341 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1342 |
} catch (ObjectNotFoundException e) {
|
1343 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
1344 |
} catch (RpcException e) {
|
1345 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1346 |
} catch (Exception e) { |
1347 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1348 |
} |
1349 |
} |
1350 |
|
1351 |
/**
|
1352 |
* Update the resource in the specified path.
|
1353 |
*
|
1354 |
* @param req the HTTP request
|
1355 |
* @param resp the HTTP response
|
1356 |
* @param path the path of the resource
|
1357 |
* @throws IOException if an input/output error occurs
|
1358 |
*/
|
1359 |
private void updateResource(HttpServletRequest req, HttpServletResponse resp, String path) throws IOException { |
1360 |
final User user = getUser(req);
|
1361 |
User owner = getOwner(req); |
1362 |
Object resource = null; |
1363 |
try {
|
1364 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
1365 |
} catch (ObjectNotFoundException e) {
|
1366 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, path); |
1367 |
return;
|
1368 |
} catch (RpcException e) {
|
1369 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1370 |
return;
|
1371 |
} |
1372 |
StringBuffer input = new StringBuffer(); |
1373 |
JSONObject json = null;
|
1374 |
if (req.getContentType().startsWith("application/x-www-form-urlencoded")) |
1375 |
input.append(req.getParameter(RESOURCE_UPDATE_PARAMETER)); |
1376 |
else {
|
1377 |
// Assume application/json
|
1378 |
BufferedReader reader = new BufferedReader(new InputStreamReader(req.getInputStream(),"UTF-8")); |
1379 |
String line = null; |
1380 |
while ((line = reader.readLine()) != null) |
1381 |
input.append(line); |
1382 |
reader.close(); |
1383 |
} |
1384 |
try {
|
1385 |
json = new JSONObject(input.toString());
|
1386 |
if (logger.isDebugEnabled())
|
1387 |
logger.debug("JSON update: " + json);
|
1388 |
if (resource instanceof FolderDTO) { |
1389 |
final FolderDTO folder = (FolderDTO) resource;
|
1390 |
String name = json.optString("name"); |
1391 |
if (!name.isEmpty())
|
1392 |
try {
|
1393 |
name = URLDecoder.decode(name, "UTF-8"); |
1394 |
} catch (IllegalArgumentException e) { |
1395 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
1396 |
return;
|
1397 |
} |
1398 |
JSONArray permissions = json.optJSONArray("permissions");
|
1399 |
Set<PermissionDTO> perms = null; |
1400 |
if (permissions != null) |
1401 |
perms = parsePermissions(user, permissions); |
1402 |
if (!name.isEmpty() || permissions != null) { |
1403 |
final String fName = name.isEmpty()? null: name; |
1404 |
final Set<PermissionDTO> fPerms = perms; |
1405 |
FolderDTO folderUpdated = new TransactionHelper<FolderDTO>().tryExecute(new Callable<FolderDTO>() { |
1406 |
@Override
|
1407 |
public FolderDTO call() throws Exception { |
1408 |
return getService().updateFolder(user.getId(), folder.getId(), fName, fPerms);
|
1409 |
} |
1410 |
|
1411 |
}); |
1412 |
resp.getWriter().println(getNewUrl(req, folderUpdated)); |
1413 |
} |
1414 |
} else {
|
1415 |
final FileHeaderDTO file = (FileHeaderDTO) resource;
|
1416 |
String name = null; |
1417 |
if (json.opt("name") != null) |
1418 |
name = json.optString("name");
|
1419 |
Long modificationDate = null; |
1420 |
if (json.optLong("modificationDate") != 0) |
1421 |
modificationDate = json.optLong("modificationDate");
|
1422 |
Boolean versioned = null; |
1423 |
if (json.opt("versioned") != null) |
1424 |
versioned = json.getBoolean("versioned");
|
1425 |
JSONArray tagset = json.optJSONArray("tags");
|
1426 |
String tags = null; |
1427 |
StringBuffer t = new StringBuffer(); |
1428 |
if (tagset != null) { |
1429 |
for (int i = 0; i < tagset.length(); i++) |
1430 |
t.append(tagset.getString(i) + ',');
|
1431 |
tags = t.toString(); |
1432 |
} |
1433 |
JSONArray permissions = json.optJSONArray("permissions");
|
1434 |
Set<PermissionDTO> perms = null; |
1435 |
if (permissions != null) |
1436 |
perms = parsePermissions(user, permissions); |
1437 |
Boolean readForAll = null; |
1438 |
if (json.opt("readForAll") != null) |
1439 |
readForAll = json.optBoolean("readForAll");
|
1440 |
if (name != null || tags != null || modificationDate != null |
1441 |
|| versioned != null || perms != null |
1442 |
|| readForAll != null) {
|
1443 |
final String fName = name; |
1444 |
final String fTags = tags; |
1445 |
final Date mDate = modificationDate != null? new Date(modificationDate): null; |
1446 |
final Boolean fVersioned = versioned; |
1447 |
final Boolean fReadForAll = readForAll; |
1448 |
final Set<PermissionDTO> fPerms = perms; |
1449 |
new TransactionHelper<Object>().tryExecute(new Callable<Object>() { |
1450 |
@Override
|
1451 |
public Object call() throws Exception { |
1452 |
getService().updateFile(user.getId(), file.getId(), |
1453 |
fName, fTags, mDate, fVersioned, |
1454 |
fReadForAll, fPerms); |
1455 |
return null; |
1456 |
} |
1457 |
|
1458 |
}); |
1459 |
} |
1460 |
} |
1461 |
} catch (JSONException e) {
|
1462 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
1463 |
} catch (InsufficientPermissionsException e) {
|
1464 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1465 |
} catch (ObjectNotFoundException e) {
|
1466 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); |
1467 |
} catch (DuplicateNameException e) {
|
1468 |
resp.sendError(HttpServletResponse.SC_CONFLICT, e.getMessage()); |
1469 |
} catch (RpcException e) {
|
1470 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1471 |
} catch (Exception e) { |
1472 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1473 |
return;
|
1474 |
} |
1475 |
} |
1476 |
|
1477 |
/**
|
1478 |
* Returns the new URL of an updated folder.
|
1479 |
*/
|
1480 |
private String getNewUrl(HttpServletRequest req, FolderDTO folder) throws UnsupportedEncodingException { |
1481 |
String parentUrl =URLDecoder.decode(getContextPath(req, true),"UTF-8"); |
1482 |
String fpath = URLDecoder.decode(req.getPathInfo(), "UTF-8"); |
1483 |
if (parentUrl.indexOf(fpath) != -1) |
1484 |
parentUrl = parentUrl.substring(0, parentUrl.indexOf(fpath));
|
1485 |
if(!parentUrl.endsWith("/")) |
1486 |
parentUrl = parentUrl+"/";
|
1487 |
parentUrl = parentUrl+folder.getOwner().getUsername()+PATH_FILES+folder.getPath(); |
1488 |
return parentUrl;
|
1489 |
} |
1490 |
|
1491 |
/**
|
1492 |
* Helper method to convert a JSON array of permissions into a set of
|
1493 |
* PermissionDTO objects.
|
1494 |
*
|
1495 |
* @param user the current user
|
1496 |
* @param permissions the JSON array to parse
|
1497 |
* @return the parsed set of permissions
|
1498 |
* @throws JSONException if there was an error parsing the JSON object
|
1499 |
* @throws RpcException if there was an error communicating with the EJB
|
1500 |
* @throws ObjectNotFoundException if the user could not be found
|
1501 |
* @throws UnsupportedEncodingException
|
1502 |
*/
|
1503 |
private Set<PermissionDTO> parsePermissions(User user, JSONArray permissions) |
1504 |
throws JSONException, RpcException, ObjectNotFoundException, UnsupportedEncodingException { |
1505 |
if (permissions == null) |
1506 |
return null; |
1507 |
Set<PermissionDTO> perms = new HashSet<PermissionDTO>(); |
1508 |
for (int i = 0; i < permissions.length(); i++) { |
1509 |
JSONObject j = permissions.getJSONObject(i); |
1510 |
PermissionDTO perm = new PermissionDTO();
|
1511 |
perm.setModifyACL(j.optBoolean("modifyACL"));
|
1512 |
perm.setRead(j.optBoolean("read"));
|
1513 |
perm.setWrite(j.optBoolean("write"));
|
1514 |
String permUser = j.optString("user"); |
1515 |
if (!permUser.isEmpty()) {
|
1516 |
User u = getService().findUser(permUser); |
1517 |
if (u == null) |
1518 |
throw new ObjectNotFoundException("User " + permUser + " not found"); |
1519 |
perm.setUser(u.getDTO()); |
1520 |
} |
1521 |
// 31/8/2009: Add optional groupUri which takes priority if it exists
|
1522 |
String permGroupUri = j.optString("groupUri"); |
1523 |
String permGroup = j.optString("group"); |
1524 |
if (!permGroupUri.isEmpty()) {
|
1525 |
String[] names = permGroupUri.split("/"); |
1526 |
String grp = URLDecoder.decode(names[names.length - 1], "UTF-8"); |
1527 |
String usr = URLDecoder.decode(names[names.length - 3], "UTF-8"); |
1528 |
User u = getService().findUser(usr); |
1529 |
if (u == null) |
1530 |
throw new ObjectNotFoundException("User " + permUser + " not found"); |
1531 |
GroupDTO g = getService().getGroup(u.getId(), grp); |
1532 |
perm.setGroup(g); |
1533 |
} |
1534 |
else if (!permGroup.isEmpty()) { |
1535 |
GroupDTO g = getService().getGroup(user.getId(), permGroup); |
1536 |
perm.setGroup(g); |
1537 |
} |
1538 |
if (permUser.isEmpty() && permGroupUri.isEmpty() && permGroup.isEmpty())
|
1539 |
throw new JSONException("A permission must correspond to either a user or a group"); |
1540 |
perms.add(perm); |
1541 |
} |
1542 |
return perms;
|
1543 |
} |
1544 |
|
1545 |
/**
|
1546 |
* Creates a new folder with the specified name under the folder in the provided path.
|
1547 |
*
|
1548 |
* @param req the HTTP request
|
1549 |
* @param resp the HTTP response
|
1550 |
* @param path the parent folder path
|
1551 |
* @param folderName the name of the new folder
|
1552 |
* @throws IOException if an input/output error occurs
|
1553 |
*/
|
1554 |
private void createFolder(HttpServletRequest req, HttpServletResponse resp, String path, final String folderName) throws IOException { |
1555 |
if (logger.isDebugEnabled())
|
1556 |
logger.debug("Creating folder " + folderName + " in '" + path); |
1557 |
|
1558 |
final User user = getUser(req);
|
1559 |
User owner = getOwner(req); |
1560 |
boolean exists = true; |
1561 |
try {
|
1562 |
getService().getResourceAtPath(owner.getId(), path + folderName, false);
|
1563 |
} catch (ObjectNotFoundException e) {
|
1564 |
exists = false;
|
1565 |
} catch (RpcException e) {
|
1566 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
1567 |
return;
|
1568 |
} |
1569 |
|
1570 |
if (exists) {
|
1571 |
resp.addHeader("Allow", METHOD_GET + ", " + METHOD_DELETE + |
1572 |
", " + METHOD_HEAD);
|
1573 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1574 |
return;
|
1575 |
} |
1576 |
|
1577 |
Object parent;
|
1578 |
try {
|
1579 |
parent = getService().getResourceAtPath(owner.getId(), path, true);
|
1580 |
} catch (ObjectNotFoundException e) {
|
1581 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1582 |
return;
|
1583 |
} catch (RpcException e) {
|
1584 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
1585 |
return;
|
1586 |
} |
1587 |
try {
|
1588 |
if (parent instanceof FolderDTO) { |
1589 |
final FolderDTO folder = (FolderDTO) parent;
|
1590 |
FolderDTO newFolder = new TransactionHelper<FolderDTO>().tryExecute(new Callable<FolderDTO>() { |
1591 |
@Override
|
1592 |
public FolderDTO call() throws Exception { |
1593 |
return getService().createFolder(user.getId(), folder.getId(), folderName);
|
1594 |
} |
1595 |
|
1596 |
}); |
1597 |
String newResource = getApiRoot() + newFolder.getURI();
|
1598 |
resp.setHeader("Location", newResource);
|
1599 |
resp.setContentType("text/plain");
|
1600 |
PrintWriter out = resp.getWriter();
|
1601 |
out.println(newResource); |
1602 |
} else {
|
1603 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1604 |
return;
|
1605 |
} |
1606 |
} catch (DuplicateNameException e) {
|
1607 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1608 |
return;
|
1609 |
} catch (InsufficientPermissionsException e) {
|
1610 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1611 |
return;
|
1612 |
} catch (ObjectNotFoundException e) {
|
1613 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1614 |
return;
|
1615 |
} catch (RpcException e) {
|
1616 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path + folderName); |
1617 |
return;
|
1618 |
} catch (Exception e) { |
1619 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1620 |
return;
|
1621 |
} |
1622 |
resp.setStatus(HttpServletResponse.SC_CREATED); |
1623 |
} |
1624 |
|
1625 |
/**
|
1626 |
* @param req
|
1627 |
* @param resp
|
1628 |
* @throws IOException
|
1629 |
* @throws FileNotFoundException
|
1630 |
*/
|
1631 |
void putResource(HttpServletRequest req, HttpServletResponse resp) throws IOException, FileNotFoundException { |
1632 |
String path = getInnerPath(req, PATH_FILES);
|
1633 |
try {
|
1634 |
path = URLDecoder.decode(path, "UTF-8"); |
1635 |
} catch (IllegalArgumentException e) { |
1636 |
resp.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
1637 |
return;
|
1638 |
} |
1639 |
if (logger.isDebugEnabled())
|
1640 |
logger.debug("Updating resource: " + path);
|
1641 |
|
1642 |
final User user = getUser(req);
|
1643 |
User owner = getOwner(req); |
1644 |
boolean exists = true; |
1645 |
Object resource = null; |
1646 |
FileHeaderDTO file = null;
|
1647 |
try {
|
1648 |
resource = getService().getResourceAtPath(owner.getId(), path, false);
|
1649 |
} catch (ObjectNotFoundException e) {
|
1650 |
exists = false;
|
1651 |
} catch (RpcException e) {
|
1652 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1653 |
return;
|
1654 |
} |
1655 |
|
1656 |
if (exists)
|
1657 |
if (resource instanceof FileHeaderDTO) |
1658 |
file = (FileHeaderDTO) resource; |
1659 |
else {
|
1660 |
resp.sendError(HttpServletResponse.SC_CONFLICT, path + " is a folder");
|
1661 |
return;
|
1662 |
} |
1663 |
boolean result = true; |
1664 |
|
1665 |
// Temporary content file used to support partial PUT.
|
1666 |
File contentFile = null; |
1667 |
|
1668 |
Range range = parseContentRange(req, resp); |
1669 |
|
1670 |
InputStream resourceInputStream = null; |
1671 |
|
1672 |
// Append data specified in ranges to existing content for this
|
1673 |
// resource - create a temporary file on the local filesystem to
|
1674 |
// perform this operation.
|
1675 |
// Assume just one range is specified for now
|
1676 |
if (range != null) { |
1677 |
try {
|
1678 |
contentFile = executePartialPut(req, range, path); |
1679 |
} catch (RpcException e) {
|
1680 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1681 |
return;
|
1682 |
} catch (ObjectNotFoundException e) {
|
1683 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1684 |
return;
|
1685 |
} catch (InsufficientPermissionsException e) {
|
1686 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1687 |
return;
|
1688 |
} |
1689 |
resourceInputStream = new FileInputStream(contentFile); |
1690 |
} else
|
1691 |
resourceInputStream = req.getInputStream(); |
1692 |
|
1693 |
try {
|
1694 |
FolderDTO folder = null;
|
1695 |
Object parent = getService().getResourceAtPath(owner.getId(), getParentPath(path), true); |
1696 |
if (!(parent instanceof FolderDTO)) { |
1697 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1698 |
return;
|
1699 |
} |
1700 |
folder = (FolderDTO) parent; |
1701 |
final String name = getLastElement(path); |
1702 |
final String mimeType = context.getMimeType(name); |
1703 |
File uploadedFile = null; |
1704 |
try {
|
1705 |
uploadedFile = getService().uploadFile(resourceInputStream, user.getId()); |
1706 |
} catch (IOException ex) { |
1707 |
throw new GSSIOException(ex, false); |
1708 |
} |
1709 |
FileHeaderDTO fileDTO = null;
|
1710 |
final File uploadedf = uploadedFile; |
1711 |
final FolderDTO parentf = folder;
|
1712 |
final FileHeaderDTO f = file;
|
1713 |
if (exists)
|
1714 |
fileDTO = new TransactionHelper<FileHeaderDTO>().tryExecute(new Callable<FileHeaderDTO>() { |
1715 |
@Override
|
1716 |
public FileHeaderDTO call() throws Exception { |
1717 |
return getService().updateFileContents(user.getId(), f.getId(), mimeType, uploadedf.getCanonicalFile().length(), uploadedf.getAbsolutePath());
|
1718 |
} |
1719 |
}); |
1720 |
else
|
1721 |
fileDTO = new TransactionHelper<FileHeaderDTO>().tryExecute(new Callable<FileHeaderDTO>() { |
1722 |
@Override
|
1723 |
public FileHeaderDTO call() throws Exception { |
1724 |
return getService().createFile(user.getId(), parentf.getId(), name, mimeType, uploadedf.getCanonicalFile().length(), uploadedf.getAbsolutePath());
|
1725 |
} |
1726 |
|
1727 |
}); |
1728 |
updateAccounting(owner, new Date(), fileDTO.getFileSize()); |
1729 |
getService().removeFileUploadProgress(user.getId(), fileDTO.getName()); |
1730 |
} catch(ObjectNotFoundException e) {
|
1731 |
result = false;
|
1732 |
} catch (RpcException e) {
|
1733 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1734 |
return;
|
1735 |
} catch (IOException e) { |
1736 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1737 |
return;
|
1738 |
} catch (GSSIOException e) {
|
1739 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1740 |
return;
|
1741 |
} catch (DuplicateNameException e) {
|
1742 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1743 |
return;
|
1744 |
} catch (InsufficientPermissionsException e) {
|
1745 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1746 |
return;
|
1747 |
} catch (QuotaExceededException e) {
|
1748 |
resp.sendError(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, e.getMessage()); |
1749 |
return;
|
1750 |
} catch (Exception e) { |
1751 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, path); |
1752 |
return;
|
1753 |
} |
1754 |
|
1755 |
if (result) {
|
1756 |
if (exists)
|
1757 |
resp.setStatus(HttpServletResponse.SC_NO_CONTENT); |
1758 |
else
|
1759 |
resp.setStatus(HttpServletResponse.SC_CREATED); |
1760 |
} else
|
1761 |
resp.sendError(HttpServletResponse.SC_CONFLICT); |
1762 |
} |
1763 |
|
1764 |
/**
|
1765 |
* Delete a resource.
|
1766 |
*
|
1767 |
* @param req The servlet request we are processing
|
1768 |
* @param resp The servlet response we are processing
|
1769 |
* @throws IOException if the response cannot be sent
|
1770 |
*/
|
1771 |
void deleteResource(HttpServletRequest req, HttpServletResponse resp) throws IOException { |
1772 |
String path = getInnerPath(req, PATH_FILES);
|
1773 |
if (logger.isDebugEnabled())
|
1774 |
logger.debug("Deleting resource '" + path);
|
1775 |
path = URLDecoder.decode(path, "UTF-8"); |
1776 |
final User user = getUser(req);
|
1777 |
User owner = getOwner(req); |
1778 |
boolean exists = true; |
1779 |
Object object = null; |
1780 |
try {
|
1781 |
object = getService().getResourceAtPath(owner.getId(), path, false);
|
1782 |
} catch (ObjectNotFoundException e) {
|
1783 |
exists = false;
|
1784 |
} catch (RpcException e) {
|
1785 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
1786 |
return;
|
1787 |
} |
1788 |
|
1789 |
if (!exists) {
|
1790 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
1791 |
return;
|
1792 |
} |
1793 |
|
1794 |
FolderDTO folder = null;
|
1795 |
FileHeaderDTO file = null;
|
1796 |
if (object instanceof FolderDTO) |
1797 |
folder = (FolderDTO) object; |
1798 |
else
|
1799 |
file = (FileHeaderDTO) object; |
1800 |
|
1801 |
if (file != null) |
1802 |
try {
|
1803 |
final FileHeaderDTO f = file;
|
1804 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1805 |
@Override
|
1806 |
public Void call() throws Exception { |
1807 |
getService().deleteFile(user.getId(), f.getId()); |
1808 |
return null; |
1809 |
} |
1810 |
}); |
1811 |
} catch (InsufficientPermissionsException e) {
|
1812 |
resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1813 |
return;
|
1814 |
} catch (ObjectNotFoundException e) {
|
1815 |
// Although we had already found the object, it was
|
1816 |
// probably deleted from another thread.
|
1817 |
resp.sendError(HttpServletResponse.SC_NOT_FOUND); |
1818 |
return;
|
1819 |
} catch (RpcException e) {
|
1820 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
1821 |
return;
|
1822 |
} catch (Exception e) { |
1823 |
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
1824 |
return;
|
1825 |
} |
1826 |
else if (folder != null) |
1827 |
try {
|
1828 |
final FolderDTO fo = folder;
|
1829 |
new TransactionHelper<Void>().tryExecute(new Callable<Void>() { |
1830 |
@Override
|
1831 |
public Void call() throws Exception { |
1832 |
getService().deleteFolder(user.getId(), fo.getId()); |
1833 |
return null; |
1834 |
} |
1835 |
}); |
1836 |
} catch (InsufficientPermissionsException e) {
|
1837 |
resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED); |
1838 |
return;
|
1839 |
} catch (ObjectNotFoundException e) {
|
1840 |
resp.setStatus(HttpServletResponse.SC_NOT_FOUND); |
1841 |
return;
|
1842 |
} catch (RpcException e) {
|
1843 |
resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
1844 |
return;
|
1845 |
} catch (Exception e) { |
1846 |
resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
1847 |
return;
|
1848 |
} |
1849 |
resp.setStatus(HttpServletResponse.SC_NO_CONTENT); |
1850 |
return;
|
1851 |
} |
1852 |
|
1853 |
/**
|
1854 |
* Return an InputStream to a JSON representation of the contents
|
1855 |
* of this directory.
|
1856 |
*
|
1857 |
* @param user the user that made the request
|
1858 |
* @param folder the specified directory
|
1859 |
* @return an input stream with the rendered contents
|
1860 |
* @throws IOException if the response cannot be sent
|
1861 |
* @throws ServletException
|
1862 |
* @throws InsufficientPermissionsException if the user does not have
|
1863 |
* the necessary privileges to read the directory
|
1864 |
*/
|
1865 |
private InputStream renderJson(User user, FolderDTO folder) throws IOException, |
1866 |
ServletException, InsufficientPermissionsException { |
1867 |
JSONObject json = new JSONObject();
|
1868 |
try {
|
1869 |
json.put("name", folder.getName()).
|
1870 |
put("owner", folder.getOwner().getUsername()).
|
1871 |
put("createdBy", folder.getAuditInfo().getCreatedBy().getUsername()).
|
1872 |
put("creationDate", folder.getAuditInfo().getCreationDate().getTime()).
|
1873 |
put("deleted", folder.isDeleted());
|
1874 |
if (folder.getAuditInfo().getModifiedBy() != null) |
1875 |
json.put("modifiedBy", folder.getAuditInfo().getModifiedBy().getUsername()).
|
1876 |
put("modificationDate", folder.getAuditInfo().getModificationDate().getTime());
|
1877 |
if (folder.getParent() != null) { |
1878 |
JSONObject j = new JSONObject();
|
1879 |
j.put("uri", getApiRoot() + folder.getParent().getURI());
|
1880 |
j.put("name", folder.getParent().getName());
|
1881 |
json.put("parent", j);
|
1882 |
} |
1883 |
List<JSONObject> subfolders = new ArrayList<JSONObject>(); |
1884 |
for (FolderDTO f: folder.getSubfolders())
|
1885 |
if (!f.isDeleted()) {
|
1886 |
JSONObject j = new JSONObject();
|
1887 |
j.put("name", f.getName()).
|
1888 |
put("uri", getApiRoot() + f.getURI());
|
1889 |
subfolders.add(j); |
1890 |
} |
1891 |
json.put("folders", subfolders);
|
1892 |
List<JSONObject> files = new ArrayList<JSONObject>(); |
1893 |
List<FileHeaderDTO> fileHeaders = getService().getFiles(user.getId(), folder.getId(), false); |
1894 |
for (FileHeaderDTO f: fileHeaders) {
|
1895 |
JSONObject j = new JSONObject();
|
1896 |
j.put("name", f.getName()).
|
1897 |
put("owner", f.getOwner().getUsername()).
|
1898 |
put("deleted", f.isDeleted()).
|
1899 |
put("version", f.getVersion()).
|
1900 |
put("content", f.getMimeType()).
|
1901 |
put("size", f.getFileSize()).
|
1902 |
put("creationDate", f.getAuditInfo().getCreationDate().getTime()).
|
1903 |
put("path", f.getFolder().getPath()).
|
1904 |
put("uri", getApiRoot() + f.getURI());
|
1905 |
if (f.getAuditInfo().getModificationDate() != null) |
1906 |
j.put("modificationDate", f.getAuditInfo().getModificationDate().getTime());
|
1907 |
files.add(j); |
1908 |
} |
1909 |
json.put("files", files);
|
1910 |
Set<PermissionDTO> perms = getService().getFolderPermissions(user.getId(), folder.getId());
|
1911 |
json.put("permissions", renderJson(perms));
|
1912 |
} catch (JSONException e) {
|
1913 |
throw new ServletException(e); |
1914 |
} catch (ObjectNotFoundException e) {
|
1915 |
throw new ServletException(e); |
1916 |
} catch (RpcException e) {
|
1917 |
throw new ServletException(e); |
1918 |
} |
1919 |
|
1920 |
// Prepare a writer to a buffered area
|
1921 |
ByteArrayOutputStream stream = new ByteArrayOutputStream(); |
1922 |
OutputStreamWriter osWriter = new OutputStreamWriter(stream, "UTF8"); |
1923 |
PrintWriter writer = new PrintWriter(osWriter); |
1924 |
|
1925 |
// Return an input stream to the underlying bytes
|
1926 |
writer.write(json.toString()); |
1927 |
writer.flush(); |
1928 |
return new ByteArrayInputStream(stream.toByteArray()); |
1929 |
} |
1930 |
|
1931 |
/**
|
1932 |
* Return a String with a JSON representation of the metadata
|
1933 |
* of the specified folder.
|
1934 |
* @throws RpcException
|
1935 |
* @throws InsufficientPermissionsException
|
1936 |
* @throws ObjectNotFoundException
|
1937 |
*/
|
1938 |
private String renderJsonMetadata(User user, FolderDTO folder) |
1939 |
throws ServletException, InsufficientPermissionsException {
|
1940 |
// Check if the user has read permission.
|
1941 |
try {
|
1942 |
if (!getService().canReadFolder(user.getId(), folder.getId()))
|
1943 |
throw new InsufficientPermissionsException(); |
1944 |
} catch (ObjectNotFoundException e) {
|
1945 |
throw new ServletException(e); |
1946 |
} catch (RpcException e) {
|
1947 |
throw new ServletException(e); |
1948 |
} |
1949 |
|
1950 |
JSONObject json = new JSONObject();
|
1951 |
try {
|
1952 |
json.put("name", folder.getName()).
|
1953 |
put("owner", folder.getOwner().getUsername()).
|
1954 |
put("createdBy", folder.getAuditInfo().getCreatedBy().getUsername()).
|
1955 |
put("creationDate", folder.getAuditInfo().getCreationDate().getTime()).
|
1956 |
put("deleted", folder.isDeleted());
|
1957 |
if (folder.getAuditInfo().getModifiedBy() != null) |
1958 |
json.put("modifiedBy", folder.getAuditInfo().getModifiedBy().getUsername()).
|
1959 |
put("modificationDate", folder.getAuditInfo().getModificationDate().getTime());
|
1960 |
} catch (JSONException e) {
|
1961 |
throw new ServletException(e); |
1962 |
} |
1963 |
return json.toString();
|
1964 |
} |
1965 |
|
1966 |
/**
|
1967 |
* Return a String with a JSON representation of the metadata
|
1968 |
* of the specified file. If an old file body is provided, then
|
1969 |
* the metadata of that particular version will be returned.
|
1970 |
*
|
1971 |
* @param user the user that made the request
|
1972 |
* @param file the specified file header
|
1973 |
* @param oldBody the version number
|
1974 |
* @return the JSON-encoded file
|
1975 |
* @throws ServletException
|
1976 |
* @throws InsufficientPermissionsException if the user does not have
|
1977 |
* the necessary privileges to read the directory
|
1978 |
*/
|
1979 |
private String renderJson(User user, FileHeaderDTO file, FileBodyDTO oldBody) |
1980 |
throws ServletException, InsufficientPermissionsException {
|
1981 |
JSONObject json = new JSONObject();
|
1982 |
try {
|
1983 |
// Need to encode file name in order to properly display it in the web client.
|
1984 |
json.put("name", URLEncoder.encode(file.getName(),"UTF-8")). |
1985 |
put("owner", file.getOwner().getUsername()).
|
1986 |
put("versioned", file.isVersioned()).
|
1987 |
put("version", oldBody != null ? oldBody.getVersion() : file.getVersion()). |
1988 |
put("readForAll", file.isReadForAll()).
|
1989 |
put("tags", renderJson(file.getTags())).
|
1990 |
put("path", file.getFolder().getPath()).
|
1991 |
put("uri", getApiRoot() + file.getURI()).
|
1992 |
put("deleted", file.isDeleted());
|
1993 |
JSONObject j = new JSONObject();
|
1994 |
j.put("uri", getApiRoot() + file.getFolder().getURI()).
|
1995 |
put("name", URLEncoder.encode(file.getFolder().getName(),"UTF-8")); |
1996 |
json.put("folder", j);
|
1997 |
if (oldBody != null) |
1998 |
json.put("createdBy", oldBody.getAuditInfo().getCreatedBy().getUsername()).
|
1999 |
put("creationDate", oldBody.getAuditInfo().getCreationDate().getTime()).
|
2000 |
put("modifiedBy", oldBody.getAuditInfo().getModifiedBy().getUsername()).
|
2001 |
put("modificationDate", oldBody.getAuditInfo().getModificationDate().getTime()).
|
2002 |
put("content", oldBody.getMimeType()).
|
2003 |
put("size", oldBody.getFileSize());
|
2004 |
else
|
2005 |
json.put("createdBy", file.getAuditInfo().getCreatedBy().getUsername()).
|
2006 |
put("creationDate", file.getAuditInfo().getCreationDate().getTime()).
|
2007 |
put("modifiedBy", file.getAuditInfo().getModifiedBy().getUsername()).
|
2008 |
put("modificationDate", file.getAuditInfo().getModificationDate().getTime()).
|
2009 |
put("content", file.getMimeType()).
|
2010 |
put("size", file.getFileSize());
|
2011 |
Set<PermissionDTO> perms = getService().getFilePermissions(user.getId(), file.getId());
|
2012 |
json.put("permissions", renderJson(perms));
|
2013 |
} catch (JSONException e) {
|
2014 |
throw new ServletException(e); |
2015 |
} catch (ObjectNotFoundException e) {
|
2016 |
throw new ServletException(e); |
2017 |
} catch (RpcException e) {
|
2018 |
throw new ServletException(e); |
2019 |
} catch (UnsupportedEncodingException e) { |
2020 |
throw new ServletException(e); |
2021 |
} |
2022 |
|
2023 |
return json.toString();
|
2024 |
} |
2025 |
|
2026 |
/**
|
2027 |
* Return a String with a JSON representation of the
|
2028 |
* specified set of permissions.
|
2029 |
*
|
2030 |
* @param permissions the set of permissions
|
2031 |
* @return the JSON-encoded object
|
2032 |
* @throws JSONException
|
2033 |
* @throws UnsupportedEncodingException
|
2034 |
*/
|
2035 |
private JSONArray renderJson(Set<PermissionDTO> permissions) throws JSONException, UnsupportedEncodingException { |
2036 |
JSONArray perms = new JSONArray();
|
2037 |
for (PermissionDTO p: permissions) {
|
2038 |
JSONObject permission = new JSONObject();
|
2039 |
permission.put("read", p.hasRead()).put("write", p.hasWrite()).put("modifyACL", p.hasModifyACL()); |
2040 |
if (p.getUser() != null) |
2041 |
permission.put("user", p.getUser().getUsername());
|
2042 |
if (p.getGroup() != null) { |
2043 |
GroupDTO group = p.getGroup(); |
2044 |
permission.put("groupUri", getApiRoot() + group.getOwner().getUsername() + PATH_GROUPS + "/" + URLEncoder.encode(group.getName(),"UTF-8")); |
2045 |
permission.put("group", URLEncoder.encode(p.getGroup().getName(),"UTF-8")); |
2046 |
} |
2047 |
perms.put(permission); |
2048 |
} |
2049 |
return perms;
|
2050 |
} |
2051 |
|
2052 |
/**
|
2053 |
* Return a String with a JSON representation of the
|
2054 |
* specified collection of tags.
|
2055 |
*
|
2056 |
* @param tags the collection of tags
|
2057 |
* @return the JSON-encoded object
|
2058 |
* @throws JSONException
|
2059 |
* @throws UnsupportedEncodingException
|
2060 |
*/
|
2061 |
private JSONArray renderJson(Collection<String> tags) throws JSONException, UnsupportedEncodingException { |
2062 |
JSONArray tagArray = new JSONArray();
|
2063 |
for (String t: tags) |
2064 |
tagArray.put(URLEncoder.encode(t,"UTF-8")); |
2065 |
return tagArray;
|
2066 |
} |
2067 |
|
2068 |
/**
|
2069 |
* Retrieves the user who owns the destination namespace, for a
|
2070 |
* copy or move request.
|
2071 |
*
|
2072 |
* @param req the HTTP request
|
2073 |
* @return the owner of the namespace
|
2074 |
*/
|
2075 |
protected User getDestinationOwner(HttpServletRequest req) {
|
2076 |
return (User) req.getAttribute(DESTINATION_OWNER_ATTRIBUTE);
|
2077 |
} |
2078 |
|
2079 |
/**
|
2080 |
* A helper inner class for updating the progress status of a file upload.
|
2081 |
*
|
2082 |
* @author kman
|
2083 |
*/
|
2084 |
public static class StatusProgressListener implements ProgressListener { |
2085 |
private int percentLogged = 0; |
2086 |
private long bytesTransferred = 0; |
2087 |
|
2088 |
private long fileSize = -100; |
2089 |
|
2090 |
private Long userId; |
2091 |
|
2092 |
private String filename; |
2093 |
|
2094 |
private ExternalAPI service;
|
2095 |
|
2096 |
public StatusProgressListener(ExternalAPI aService) {
|
2097 |
service = aService; |
2098 |
} |
2099 |
|
2100 |
/**
|
2101 |
* Modify the userId.
|
2102 |
*
|
2103 |
* @param aUserId the userId to set
|
2104 |
*/
|
2105 |
public void setUserId(Long aUserId) { |
2106 |
userId = aUserId; |
2107 |
} |
2108 |
|
2109 |
/**
|
2110 |
* Modify the filename.
|
2111 |
*
|
2112 |
* @param aFilename the filename to set
|
2113 |
*/
|
2114 |
public void setFilename(String aFilename) { |
2115 |
filename = aFilename; |
2116 |
} |
2117 |
|
2118 |
public void update(long bytesRead, long contentLength, int items) { |
2119 |
//monitoring per percent of bytes uploaded
|
2120 |
bytesTransferred = bytesRead; |
2121 |
if (fileSize != contentLength)
|
2122 |
fileSize = contentLength; |
2123 |
int percent = new Long(bytesTransferred * 100 / fileSize).intValue(); |
2124 |
|
2125 |
if (percent < 5 || percent % TRACK_PROGRESS_PERCENT == 0 ) |
2126 |
if (percent != percentLogged){
|
2127 |
percentLogged = percent; |
2128 |
try {
|
2129 |
if (userId != null && filename != null) |
2130 |
service.createFileUploadProgress(userId, filename, bytesTransferred, fileSize); |
2131 |
} catch (ObjectNotFoundException e) {
|
2132 |
// Swallow the exception since it is going to be caught
|
2133 |
// by previously called methods
|
2134 |
} |
2135 |
} |
2136 |
} |
2137 |
} |
2138 |
} |