/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.uberfire.server;
import java.io.IOException;
import java.net.URI;
import javax.inject.Inject;
import javax.inject.Named;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.uberfire.io.IOService;
import org.uberfire.java.nio.file.Path;
import org.uberfire.server.util.FileServletUtil;
import static java.lang.String.format;
public class FileDownloadServlet
extends BaseFilteredServlet {
private static final Logger logger = LoggerFactory.getLogger(FileDownloadServlet.class);
@Inject
@Named("ioStrategy")
private IOService ioService;
@Override
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
try {
//See https://bugzilla.redhat.com/show_bug.cgi?id=1202926
final String encodedPath = FileServletUtil.encodeFileNamePart(request.getParameter("path"));
final URI uri = new URI(encodedPath);
if (!validateAccess(uri,
response)) {
return;
}
final Path path = ioService.get(uri);
byte[] bytes = ioService.readAllBytes(path);
response.setHeader("Content-Disposition",
format("attachment; filename=\"%s\";",
path.getFileName().toString()));
response.setContentType("application/octet-stream");
response.getOutputStream().write(
bytes,
0,
bytes.length);
} catch (final Exception e) {
logger.error("Failed to download a file.",
e);
}
}
}