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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.LabelFunction;
import com.google.gerrit.entities.LabelType;
import com.google.gerrit.entities.LabelValue;
import com.google.gerrit.extensions.common.LabelDefinitionInfo;
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.IdString;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestCollectionCreateView;
import com.google.gerrit.index.query.QueryParseException;
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.LabelDefinitionJson;
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.gerrit.server.query.approval.ApprovalQueryBuilder;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.List;
import java.util.Optional;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class CreateLabel
implements RestCollectionCreateView<ProjectResource, LabelResource, LabelDefinitionInput> {
private final Provider<CurrentUser> user;
private final PermissionBackend permissionBackend;
private final MetaDataUpdate.User updateFactory;
private final ProjectConfig.Factory projectConfigFactory;
private final ProjectCache projectCache;
private final ApprovalQueryBuilder approvalQueryBuilder;
@Inject
public CreateLabel(
Provider<CurrentUser> user,
PermissionBackend permissionBackend,
MetaDataUpdate.User updateFactory,
ProjectConfig.Factory projectConfigFactory,
ProjectCache projectCache,
ApprovalQueryBuilder approvalQueryBuilder) {
this.user = user;
this.permissionBackend = permissionBackend;
this.updateFactory = updateFactory;
this.projectConfigFactory = projectConfigFactory;
this.projectCache = projectCache;
this.approvalQueryBuilder = approvalQueryBuilder;
}
@Override
public Response<LabelDefinitionInfo> apply(
ProjectResource rsrc, IdString id, LabelDefinitionInput input)
throws AuthException, BadRequestException, ResourceConflictException,
PermissionBackendException, IOException, ConfigInvalidException {
if (!user.get().isIdentifiedUser()) {
throw new AuthException("Authentication required");
}
permissionBackend
.currentUser()
.project(rsrc.getNameKey())
.check(ProjectPermission.WRITE_CONFIG);
if (input == null) {
input = new LabelDefinitionInput();
}
if (input.name != null && !input.name.equals(id.get())) {
throw new BadRequestException("name in input must match name in URL");
}
try (MetaDataUpdate md = updateFactory.create(rsrc.getNameKey())) {
ProjectConfig config = projectConfigFactory.read(md);
LabelType labelType = createLabel(config, id.get(), input);
if (input.commitMessage != null) {
md.setMessage(Strings.emptyToNull(input.commitMessage.trim()));
} else {
md.setMessage("Update label");
}
config.commit(md);
projectCache.evictAndReindex(rsrc.getProjectState().getProject());
return Response.created(LabelDefinitionJson.format(rsrc.getNameKey(), labelType));
}
}
/**
* Creates a new label.
*
* @param config the project config
* @param label the name of the new label
* @param input the input that describes the new label
* @return the created label type
* @throws BadRequestException if there was invalid data in the input
* @throws ResourceConflictException if the label cannot be created due to a conflict
*/
public LabelType createLabel(ProjectConfig config, String label, LabelDefinitionInput input)
throws BadRequestException, ResourceConflictException {
if (config.getLabelSections().containsKey(label)) {
throw new ResourceConflictException(String.format("label %s already exists", label));
}
for (String labelName : config.getLabelSections().keySet()) {
if (labelName.equalsIgnoreCase(label)) {
throw new ResourceConflictException(
String.format("label %s conflicts with existing label %s", label, labelName));
}
}
if (input.values == null || input.values.isEmpty()) {
throw new BadRequestException("values are required");
}
try {
LabelType.checkName(label);
} catch (IllegalArgumentException e) {
throw new BadRequestException("invalid name: " + label, e);
}
List<LabelValue> values = LabelDefinitionInputParser.parseValues(input.values);
LabelType.Builder labelType = LabelType.builder(LabelType.checkName(label), values);
if (input.description != null) {
String description = Strings.emptyToNull(input.description.trim());
labelType.setDescription(Optional.ofNullable(description));
}
if (input.function != null && !input.function.trim().isEmpty()) {
labelType.setFunction(LabelDefinitionInputParser.parseFunction(input.function));
} else {
labelType.setFunction(LabelFunction.MAX_WITH_BLOCK);
}
if (input.defaultValue != null) {
labelType.setDefaultValue(
LabelDefinitionInputParser.parseDefaultValue(labelType, input.defaultValue));
}
if (input.branches != null) {
labelType.setRefPatterns(LabelDefinitionInputParser.parseBranches(input.branches));
}
if (input.canOverride != null) {
labelType.setCanOverride(input.canOverride);
}
if (input.copyCondition != null) {
try {
approvalQueryBuilder.parse(input.copyCondition);
} catch (QueryParseException e) {
throw new BadRequestException(
"unable to parse copy condition. got: " + input.copyCondition + ". " + e.getMessage(),
e);
}
if (Boolean.TRUE.equals(input.unsetCopyCondition)) {
throw new BadRequestException("can't set and unset copyCondition in the same request");
}
labelType.setCopyCondition(Strings.emptyToNull(input.copyCondition));
}
if (Boolean.TRUE.equals(input.unsetCopyCondition)) {
labelType.setCopyCondition(null);
}
if (input.allowPostSubmit != null) {
labelType.setAllowPostSubmit(input.allowPostSubmit);
}
if (input.ignoreSelfApproval != null) {
labelType.setIgnoreSelfApproval(input.ignoreSelfApproval);
}
LabelType lt = labelType.build();
config.upsertLabelType(lt);
return lt;
}
}