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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.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.ResourceConflictException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestModifyView;
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.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.Optional;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class SetLabel implements RestModifyView<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 SetLabel(
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(LabelResource rsrc, LabelDefinitionInput input)
throws AuthException, BadRequestException, ResourceConflictException,
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 LabelDefinitionInput();
}
LabelType labelType = rsrc.getLabelType();
try (MetaDataUpdate md = updateFactory.create(rsrc.getProject().getNameKey())) {
ProjectConfig config = projectConfigFactory.read(md);
if (updateLabel(config, labelType, input)) {
if (input.commitMessage != null) {
md.setMessage(Strings.emptyToNull(input.commitMessage.trim()));
} else {
md.setMessage("Update label");
}
String newName = Strings.nullToEmpty(input.name).trim();
labelType =
config.getLabelSections().get(newName.isEmpty() ? labelType.getName() : newName);
config.commit(md);
projectCache.evictAndReindex(rsrc.getProject().getProjectState().getProject());
}
}
return Response.ok(LabelDefinitionJson.format(rsrc.getProject().getNameKey(), labelType));
}
/**
* Updates the given label.
*
* @param config the project config
* @param labelType the label type that should be updated
* @param input the input that describes the label update
* @return whether the label type was modified
* @throws BadRequestException if there was invalid data in the input
* @throws ResourceConflictException if the update cannot be applied due to a conflict
*/
public boolean updateLabel(ProjectConfig config, LabelType labelType, LabelDefinitionInput input)
throws BadRequestException, ResourceConflictException {
boolean dirty = false;
LabelType.Builder labelTypeBuilder = labelType.toBuilder();
if (input.name != null) {
String newName = input.name.trim();
if (newName.isEmpty()) {
throw new BadRequestException("name cannot be empty");
}
if (!newName.equals(labelType.getName())) {
if (config.getLabelSections().containsKey(newName)) {
throw new ResourceConflictException(String.format("name %s already in use", newName));
}
for (String labelName : config.getLabelSections().keySet()) {
if (labelName.equalsIgnoreCase(newName)) {
throw new ResourceConflictException(
String.format("name %s conflicts with existing label %s", newName, labelName));
}
}
try {
LabelType.checkName(newName);
} catch (IllegalArgumentException e) {
throw new BadRequestException("invalid name: " + input.name, e);
}
labelTypeBuilder.setName(newName);
dirty = true;
}
}
if (input.description != null) {
String description = Strings.emptyToNull(input.description.trim());
labelTypeBuilder.setDescription(Optional.ofNullable(description));
dirty = true;
}
if (input.function != null) {
if (input.function.trim().isEmpty()) {
throw new BadRequestException("function cannot be empty");
}
labelTypeBuilder.setFunction(LabelDefinitionInputParser.parseFunction(input.function));
dirty = true;
}
if (input.values != null) {
if (input.values.isEmpty()) {
throw new BadRequestException("values cannot be empty");
}
labelTypeBuilder.setValues(LabelDefinitionInputParser.parseValues(input.values));
dirty = true;
}
if (input.defaultValue != null) {
labelTypeBuilder.setDefaultValue(
LabelDefinitionInputParser.parseDefaultValue(labelTypeBuilder, input.defaultValue));
dirty = true;
}
if (input.branches != null) {
labelTypeBuilder.setRefPatterns(LabelDefinitionInputParser.parseBranches(input.branches));
dirty = true;
}
if (input.canOverride != null) {
labelTypeBuilder.setCanOverride(input.canOverride);
dirty = true;
}
input.copyCondition = Strings.emptyToNull(input.copyCondition);
if (input.copyCondition != null) {
try {
@SuppressWarnings("unused")
var unused = approvalQueryBuilder.parse(input.copyCondition);
} catch (QueryParseException e) {
throw new BadRequestException(
"unable to parse copy condition. got: " + input.copyCondition + ". " + e.getMessage(),
e);
}
labelTypeBuilder.setCopyCondition(input.copyCondition);
dirty = true;
if (Boolean.TRUE.equals(input.unsetCopyCondition)) {
throw new BadRequestException("can't set and unset copyCondition in the same request");
}
}
if (Boolean.TRUE.equals(input.unsetCopyCondition)) {
labelTypeBuilder.setCopyCondition(null);
dirty = true;
}
if (input.allowPostSubmit != null) {
labelTypeBuilder.setAllowPostSubmit(input.allowPostSubmit);
dirty = true;
}
if (input.ignoreSelfApproval != null) {
labelTypeBuilder.setIgnoreSelfApproval(input.ignoreSelfApproval);
dirty = true;
}
config.getLabelSections().remove(labelType.getName());
config.upsertLabelType(labelTypeBuilder.build());
return dirty;
}
}
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