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// Copyright (C) 2012 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.server.restapi.project;
import static com.google.gerrit.entities.RefNames.REFS_DASHBOARDS;
import com.google.common.collect.ImmutableList;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.entities.Project;
import com.google.gerrit.extensions.api.projects.DashboardInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.permissions.ProjectPermission;
import com.google.gerrit.server.permissions.RefPermission;
import com.google.gerrit.server.project.ProjectResource;
import com.google.gerrit.server.project.ProjectState;
import com.google.inject.Inject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.BlobBasedConfig;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.kohsuke.args4j.Option;
public class ListDashboards implements RestReadView<ProjectResource> {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private final GitRepositoryManager gitManager;
private final PermissionBackend permissionBackend;
@Option(name = "--inherited", usage = "include inherited dashboards")
private boolean inherited;
@Inject
ListDashboards(GitRepositoryManager gitManager, PermissionBackend permissionBackend) {
this.gitManager = gitManager;
this.permissionBackend = permissionBackend;
}
@Override
public Response<List<?>> apply(ProjectResource rsrc)
throws ResourceNotFoundException, IOException, PermissionBackendException {
String project = rsrc.getName();
if (!inherited) {
return Response.ok(scan(rsrc.getProjectState(), project, true));
}
List<List<DashboardInfo>> all = new ArrayList<>();
boolean setDefault = true;
for (ProjectState ps : tree(rsrc)) {
List<DashboardInfo> list = scan(ps, project, setDefault);
for (DashboardInfo d : list) {
if (d.isDefault != null && Boolean.TRUE.equals(d.isDefault)) {
setDefault = false;
}
}
if (!list.isEmpty()) {
all.add(list);
}
}
return Response.ok(all);
}
private Collection<ProjectState> tree(ProjectResource rsrc) throws PermissionBackendException {
Map<Project.NameKey, ProjectState> tree = new LinkedHashMap<>();
for (ProjectState ps : rsrc.getProjectState().tree()) {
if (ps.statePermitsRead()) {
tree.put(ps.getNameKey(), ps);
}
}
tree.keySet()
.retainAll(permissionBackend.currentUser().filter(ProjectPermission.ACCESS, tree.keySet()));
return tree.values();
}
private List<DashboardInfo> scan(ProjectState state, String project, boolean setDefault)
throws ResourceNotFoundException, IOException, PermissionBackendException {
if (!state.statePermitsRead()) {
return ImmutableList.of();
}
PermissionBackend.ForProject perm = permissionBackend.currentUser().project(state.getNameKey());
try (Repository git = gitManager.openRepository(state.getNameKey());
RevWalk rw = new RevWalk(git)) {
List<DashboardInfo> all = new ArrayList<>();
for (Ref ref : git.getRefDatabase().getRefsByPrefix(REFS_DASHBOARDS)) {
try {
perm.ref(ref.getName()).check(RefPermission.READ);
all.addAll(scanDashboards(state.getProject(), git, rw, ref, project, setDefault));
} catch (AuthException e) {
// Do nothing.
}
}
return all;
} catch (RepositoryNotFoundException e) {
throw new ResourceNotFoundException(project, e);
}
}
private List<DashboardInfo> scanDashboards(
Project definingProject,
Repository git,
RevWalk rw,
Ref ref,
String project,
boolean setDefault)
throws IOException {
List<DashboardInfo> list = new ArrayList<>();
try (TreeWalk tw = new TreeWalk(rw.getObjectReader())) {
tw.addTree(rw.parseTree(ref.getObjectId()));
tw.setRecursive(true);
while (tw.next()) {
if (tw.getFileMode(0) == FileMode.REGULAR_FILE) {
try {
list.add(
DashboardsCollection.parse(
definingProject,
ref.getName().substring(REFS_DASHBOARDS.length()),
tw.getPathString(),
new BlobBasedConfig(null, git, tw.getObjectId(0)),
project,
setDefault));
} catch (ConfigInvalidException e) {
logger.atWarning().log(
"Cannot parse dashboard %s:%s:%s: %s",
definingProject.getName(), ref.getName(), tw.getPathString(), e.getMessage());
}
}
}
}
return list;
}
}
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