001/*
002 * (C) Copyright 2006-2016 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Thierry Delprat
018 *     Florent Guillaume
019 *     Estelle Giuly <[email protected]>
020 */
021package org.nuxeo.ecm.platform.ui.web.download;
022
023import java.io.File;
024import java.io.IOException;
025import java.net.URI;
026import java.net.URISyntaxException;
027
028import javax.servlet.http.HttpServlet;
029import javax.servlet.http.HttpServletRequest;
030import javax.servlet.http.HttpServletResponse;
031
032import org.nuxeo.common.Environment;
033import org.nuxeo.ecm.core.api.Blob;
034import org.nuxeo.ecm.core.api.Blobs;
035import org.nuxeo.ecm.core.io.download.DownloadHelper;
036import org.nuxeo.ecm.core.io.download.DownloadService;
037import org.nuxeo.ecm.platform.web.common.vh.VirtualHostHelper;
038import org.nuxeo.runtime.api.Framework;
039
040/**
041 * Simple download servlet used for big files that can not be downloaded from within the JSF context (because of
042 * buffered ResponseWrapper).
043 */
044public class DownloadServlet extends HttpServlet {
045
046    private static final long serialVersionUID = 1L;
047
048    /** @deprecated since 7.4, use nxfile instead */
049    @Deprecated
050    public static final String NXBIGFILE = DownloadService.NXBIGFILE;
051
052    @Override
053    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
054        try {
055            handleDownload(req, resp);
056        } catch (IOException ioe) {
057            DownloadHelper.handleClientDisconnect(ioe);
058        }
059    }
060
061    protected void handleDownload(HttpServletRequest req, HttpServletResponse resp) throws IOException {
062        String requestURI;
063        try {
064            requestURI = new URI(req.getRequestURI()).getPath();
065        } catch (URISyntaxException e) {
066            requestURI = req.getRequestURI();
067        }
068        // remove context
069        String context = VirtualHostHelper.getContextPath(req) + "/";
070        if (!requestURI.startsWith(context)) {
071            resp.sendError(HttpServletResponse.SC_NOT_FOUND, "Invalid URL syntax");
072            return;
073        }
074        String baseUrl = VirtualHostHelper.getBaseURL(req);
075        String path = requestURI.substring(context.length());
076        DownloadService downloadService = Framework.getService(DownloadService.class);
077        downloadService.handleDownload(req, resp, baseUrl, path);
078    }
079
080    /**
081     * @deprecated since 9.1. It was defined for ClipboardActionsBean but it seems not to be used anymore.
082     */
083    @Deprecated
084    protected void handleDownloadTemporaryZip(HttpServletRequest req, HttpServletResponse resp, String filePath)
085            throws IOException {
086        String[] pathParts = filePath.split("/");
087        String tmpFileName = pathParts[0];
088        File tmpZip = new File(Environment.getDefault().getTemp(), tmpFileName);
089        try {
090            Blob zipBlob = Blobs.createBlob(tmpZip);
091            DownloadService downloadService = Framework.getService(DownloadService.class);
092            downloadService.downloadBlob(req, resp, null, null, zipBlob, "clipboard.zip", "clipboardZip");
093        } finally {
094            tmpZip.delete();
095        }
096    }
097
098}