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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.entities.LabelType;
import com.google.gerrit.extensions.common.BatchLabelInput;
import com.google.gerrit.extensions.common.LabelDefinitionInput;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestCollectionModifyView;
import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
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.gerrit.server.project.ProjectResource;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.Map;
import org.eclipse.jgit.errors.ConfigInvalidException;
/** REST endpoint that allows to add, update and delete label definitions in a batch. */
@Singleton
public class PostLabels
implements RestCollectionModifyView<ProjectResource, LabelResource, BatchLabelInput> {
private final Provider<CurrentUser> user;
private final PermissionBackend permissionBackend;
private final MetaDataUpdate.User updateFactory;
private final ProjectConfig.Factory projectConfigFactory;
private final DeleteLabel deleteLabel;
private final CreateLabel createLabel;
private final SetLabel setLabel;
private final ProjectCache projectCache;
@Inject
public PostLabels(
Provider<CurrentUser> user,
PermissionBackend permissionBackend,
MetaDataUpdate.User updateFactory,
ProjectConfig.Factory projectConfigFactory,
DeleteLabel deleteLabel,
CreateLabel createLabel,
SetLabel setLabel,
ProjectCache projectCache) {
this.user = user;
this.permissionBackend = permissionBackend;
this.updateFactory = updateFactory;
this.projectConfigFactory = projectConfigFactory;
this.deleteLabel = deleteLabel;
this.createLabel = createLabel;
this.setLabel = setLabel;
this.projectCache = projectCache;
}
@Override
public Response<?> apply(ProjectResource rsrc, BatchLabelInput input)
throws AuthException, UnprocessableEntityException, PermissionBackendException, IOException,
ConfigInvalidException, BadRequestException, ResourceConflictException {
if (!user.get().isIdentifiedUser()) {
throw new AuthException("Authentication required");
}
permissionBackend
.currentUser()
.project(rsrc.getNameKey())
.check(ProjectPermission.WRITE_CONFIG);
if (input == null) {
input = new BatchLabelInput();
}
try (MetaDataUpdate md = updateFactory.create(rsrc.getNameKey())) {
boolean dirty = false;
ProjectConfig config = projectConfigFactory.read(md);
if (input.delete != null && !input.delete.isEmpty()) {
for (String labelName : input.delete) {
if (!deleteLabel.deleteLabel(config, labelName.trim())) {
throw new UnprocessableEntityException(String.format("label %s not found", labelName));
}
}
dirty = true;
}
if (input.create != null && !input.create.isEmpty()) {
for (LabelDefinitionInput labelInput : input.create) {
if (labelInput.name == null || labelInput.name.trim().isEmpty()) {
throw new BadRequestException("label name is required for new label");
}
if (labelInput.commitMessage != null) {
throw new BadRequestException("commit message on label definition input not supported");
}
createLabel.createLabel(config, labelInput.name.trim(), labelInput);
}
dirty = true;
}
if (input.update != null && !input.update.isEmpty()) {
for (Map.Entry<String, LabelDefinitionInput> e : input.update.entrySet()) {
LabelType labelType = config.getLabelSections().get(e.getKey().trim());
if (labelType == null) {
throw new UnprocessableEntityException(String.format("label %s not found", e.getKey()));
}
if (e.getValue().commitMessage != null) {
throw new BadRequestException("commit message on label definition input not supported");
}
setLabel.updateLabel(config, labelType, e.getValue());
}
dirty = true;
}
if (input.commitMessage != null) {
md.setMessage(Strings.emptyToNull(input.commitMessage.trim()));
} else {
md.setMessage("Update labels");
}
if (dirty) {
config.commit(md);
projectCache.evictAndReindex(rsrc.getProjectState().getProject());
}
}
return Response.ok("");
}
}