com.google.gerrit.httpd.NumericChangeIdRedirectServlet Maven / Gradle / Ivy
// Copyright (C) 2018 The Android Open Source Project
//
// 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.gerrit.httpd;
import com.google.gerrit.common.PageLinks;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.server.change.ChangeResource;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.restapi.change.ChangesCollection;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/** Redirects {@code domain.tld/123} to {@code domain.tld/c/project/+/123}. */
@Singleton
public class NumericChangeIdRedirectServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private final ChangesCollection changesCollection;
@Inject
NumericChangeIdRedirectServlet(ChangesCollection changesCollection) {
this.changesCollection = changesCollection;
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
String idString = req.getPathInfo();
if (idString.endsWith("/")) {
idString = idString.substring(0, idString.length() - 1);
}
Change.Id id;
try {
id = Change.Id.parse(idString);
} catch (IllegalArgumentException e) {
rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
ChangeResource changeResource;
try {
changeResource = changesCollection.parse(id);
} catch (ResourceConflictException | ResourceNotFoundException e) {
rsp.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
} catch (PermissionBackendException | RuntimeException e) {
throw new IOException("Unable to lookup change " + id.id, e);
}
String path =
PageLinks.toChange(changeResource.getProject(), changeResource.getChange().getId());
UrlModule.toGerrit(path, req, rsp);
}
}