/*
* Copyright 2013 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.git;
import java.io.IOException;
import java.text.MessageFormat;
import javax.servlet.http.HttpServletRequest;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.resolver.FileResolver;
import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.gitblit.manager.IGitblit;
import com.gitblit.models.RepositoryModel;
import com.gitblit.models.UserModel;
import com.gitblit.transport.git.GitDaemonClient;
import com.gitblit.transport.ssh.SshDaemonClient;
/**
* Resolves repositories and grants export access.
*
* @author James Moger
*
*/
public class RepositoryResolver<X> extends FileResolver<X> {
private final Logger logger = LoggerFactory.getLogger(RepositoryResolver.class);
private final IGitblit gitblit;
public RepositoryResolver(IGitblit gitblit) {
super(gitblit.getRepositoriesFolder(), true);
this.gitblit = gitblit;
}
/**
* Open the repository and inject the repository name into the settings.
*/
@Override
public Repository open(final X req, final String name)
throws RepositoryNotFoundException, ServiceNotEnabledException {
Repository repo = super.open(req, name);
// Set repository name for the pack factories
// We do this because the JGit API does not have a consistent way to
// retrieve the repository name from the pack factories or the hooks.
if (req instanceof HttpServletRequest) {
// http/https request
HttpServletRequest client = (HttpServletRequest) req;
client.setAttribute("gitblitRepositoryName", name);
} else if (req instanceof GitDaemonClient) {
// git request
GitDaemonClient client = (GitDaemonClient) req;
client.setRepositoryName(name);
} else if (req instanceof SshDaemonClient) {
SshDaemonClient client = (SshDaemonClient) req;
client.setRepositoryName(name);
}
return repo;
}
/**
* Check if this repository can be served by the requested client connection.
*/
@Override
protected boolean isExportOk(X req, String repositoryName, Repository db) throws IOException {
RepositoryModel model = gitblit.getRepositoryModel(repositoryName);
UserModel user = UserModel.ANONYMOUS;
String scheme = null;
String origin = null;
if (req instanceof GitDaemonClient) {
// git daemon request
// this is an anonymous/unauthenticated protocol
GitDaemonClient client = (GitDaemonClient) req;
scheme = "git";
origin = client.getRemoteAddress().toString();
} else if (req instanceof HttpServletRequest) {
// http/https request
HttpServletRequest client = (HttpServletRequest) req;
scheme = client.getScheme();
origin = client.getRemoteAddr();
user = gitblit.authenticate(client);
if (user == null) {
user = UserModel.ANONYMOUS;
}
} else if (req instanceof SshDaemonClient) {
// ssh is always authenticated
SshDaemonClient client = (SshDaemonClient) req;
user = client.getUser();
}
if (user.canClone(model)) {
// user can access this git repo
logger.debug(MessageFormat.format("{0}:// access of {1} by {2} from {3} PERMITTED",
scheme, repositoryName, user.username, origin));
return true;
}
// user can not access this git repo
logger.warn(MessageFormat.format("{0}:// access of {1} by {2} from {3} DENIED",
scheme, repositoryName, user.username, origin));
return false;
}
}