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// Copyright (C) 2019 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 com.google.common.base.Strings;
import com.google.gerrit.extensions.common.InputWithCommitMessage;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.IdString;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.git.meta.MetaDataUpdate;
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.project.LabelResource;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectConfig;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class DeleteLabel implements RestModifyView<LabelResource, InputWithCommitMessage> {
private final Provider<CurrentUser> user;
private final PermissionBackend permissionBackend;
private final MetaDataUpdate.User updateFactory;
private final ProjectConfig.Factory projectConfigFactory;
private final ProjectCache projectCache;
@Inject
public DeleteLabel(
Provider<CurrentUser> user,
PermissionBackend permissionBackend,
MetaDataUpdate.User updateFactory,
ProjectConfig.Factory projectConfigFactory,
ProjectCache projectCache) {
this.user = user;
this.permissionBackend = permissionBackend;
this.updateFactory = updateFactory;
this.projectConfigFactory = projectConfigFactory;
this.projectCache = projectCache;
}
@Override
public Response<?> apply(LabelResource rsrc, InputWithCommitMessage input)
throws AuthException, ResourceNotFoundException, PermissionBackendException, IOException,
ConfigInvalidException {
if (!user.get().isIdentifiedUser()) {
throw new AuthException("Authentication required");
}
permissionBackend
.currentUser()
.project(rsrc.getProject().getNameKey())
.check(ProjectPermission.WRITE_CONFIG);
if (input == null) {
input = new InputWithCommitMessage();
}
try (MetaDataUpdate md = updateFactory.create(rsrc.getProject().getNameKey())) {
ProjectConfig config = projectConfigFactory.read(md);
if (!deleteLabel(config, rsrc.getLabelType().getName())) {
throw new ResourceNotFoundException(IdString.fromDecoded(rsrc.getLabelType().getName()));
}
if (input.commitMessage != null) {
md.setMessage(Strings.emptyToNull(input.commitMessage.trim()));
} else {
md.setMessage("Delete label");
}
config.commit(md);
}
projectCache.evictAndReindex(rsrc.getProject().getProjectState().getProject());
return Response.none();
}
/**
* Delete the given label from the given project config.
*
* @param config the project config from which the label should be deleted
* @param labelName the name of the label that should be deleted
* @return {@code true} if the label was deleted, {@code false} if the label was not found
*/
public boolean deleteLabel(ProjectConfig config, String labelName) {
if (!config.getLabelSections().containsKey(labelName)) {
return false;
}
config.getLabelSections().remove(labelName);
return true;
}
}