| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // 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.google.gitiles; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.gitiles.ViewFilter.getRegexGroup; |
| import static org.eclipse.jgit.http.server.ServletUtils.ATTRIBUTE_REPOSITORY; |
| |
| import com.google.gitiles.GitilesRequestFailureException.FailureReason; |
| import java.io.IOException; |
| import javax.servlet.FilterChain; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.transport.resolver.RepositoryResolver; |
| import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException; |
| import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException; |
| |
| class RepositoryFilter extends AbstractHttpFilter { |
| |
| private final RepositoryResolver<HttpServletRequest> resolver; |
| |
| RepositoryFilter(RepositoryResolver<HttpServletRequest> resolver) { |
| this.resolver = checkNotNull(resolver, "resolver"); |
| } |
| |
| @Override |
| public void doFilter(HttpServletRequest req, HttpServletResponse res, FilterChain chain) |
| throws IOException, ServletException { |
| try { |
| String repo = ViewFilter.trimLeadingSlash(getRegexGroup(req, 1)); |
| try (Repository git = resolver.open(req, repo)) { |
| req.setAttribute(ATTRIBUTE_REPOSITORY, git); |
| chain.doFilter(req, res); |
| } catch (RepositoryNotFoundException e) { |
| // Drop through the rest of the chain. ViewFilter will pass this |
| // to HostIndexServlet which will attempt to list repositories |
| // or send SC_NOT_FOUND there. |
| chain.doFilter(req, res); |
| } finally { |
| req.removeAttribute(ATTRIBUTE_REPOSITORY); |
| } |
| } catch (ServiceNotEnabledException e) { |
| throw new GitilesRequestFailureException(FailureReason.SERVICE_NOT_ENABLED, e); |
| } catch (ServiceNotAuthorizedException e) { |
| throw new GitilesRequestFailureException(FailureReason.NOT_AUTHORIZED, e); |
| } |
| } |
| } |