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/*
* Copyright 2011 gitblit.com.
*
* 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 com.gitblit;
import java.util.Date;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.gitblit.Constants.AccessRestrictionType;
import com.gitblit.models.RepositoryModel;
import com.gitblit.utils.JGitUtils;
import com.gitblit.utils.StringUtils;
public class DownloadZipServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private transient Logger logger = LoggerFactory.getLogger(DownloadZipServlet.class);
public DownloadZipServlet() {
super();
}
public static String asLink(String baseURL, String repository, String objectId, String path) {
if (baseURL.length() > 0 && baseURL.charAt(baseURL.length() - 1) == '/') {
baseURL = baseURL.substring(0, baseURL.length() - 1);
}
return baseURL + Constants.ZIP_PATH + "?r=" + repository
+ (path == null ? "" : ("&p=" + path))
+ (objectId == null ? "" : ("&h=" + objectId));
}
private void processRequest(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,
java.io.IOException {
if (!GitBlit.getBoolean(Keys.web.allowZipDownloads, true)) {
logger.warn("Zip downloads are disabled");
response.sendError(HttpServletResponse.SC_FORBIDDEN);
return;
}
String repository = request.getParameter("r");
String basePath = request.getParameter("p");
String objectId = request.getParameter("h");
try {
String name = repository;
if (name.indexOf('/') > -1) {
name = name.substring(name.lastIndexOf('/') + 1);
}
// check roles first
boolean authorized = request.isUserInRole(Constants.ADMIN_ROLE);
authorized |= request.isUserInRole(repository);
if (!authorized) {
RepositoryModel model = GitBlit.self().getRepositoryModel(repository);
if (model.accessRestriction.atLeast(AccessRestrictionType.VIEW)) {
logger.warn("Unauthorized access via zip servlet for " + model.name);
response.sendError(HttpServletResponse.SC_FORBIDDEN);
return;
}
}
if (!StringUtils.isEmpty(basePath)) {
name += "-" + basePath.replace('/', '_');
}
if (!StringUtils.isEmpty(objectId)) {
name += "-" + objectId;
}
Repository r = GitBlit.self().getRepository(repository);
RevCommit commit = JGitUtils.getCommit(r, objectId);
Date date = JGitUtils.getCommitDate(commit);
String contentType = "application/octet-stream";
response.setContentType(contentType + "; charset=" + response.getCharacterEncoding());
// response.setContentLength(attachment.getFileSize());
response.setHeader("Content-Disposition", "attachment; filename=\"" + name + ".zip"
+ "\"");
response.setDateHeader("Last-Modified", date.getTime());
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Pragma", "no-cache");
response.setDateHeader("Expires", 0);
try {
JGitUtils.zip(r, basePath, objectId, response.getOutputStream());
response.flushBuffer();
} catch (Throwable t) {
logger.error("Failed to write attachment to client", t);
}
} catch (Throwable t) {
logger.error("Failed to write attachment to client", t);
}
}
@Override
protected void doPost(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,
java.io.IOException {
processRequest(request, response);
}
@Override
protected void doGet(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,
java.io.IOException {
processRequest(request, response);
}
}
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