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// Copyright (C) 2013 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.git.validators;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.extensions.api.projects.ProjectConfigEntryType;
import com.google.gerrit.extensions.registration.DynamicMap;
import com.google.gerrit.extensions.registration.DynamicMap.Entry;
import com.google.gerrit.extensions.registration.DynamicSet;
import com.google.gerrit.reviewdb.client.Branch;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RefNames;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.config.AllProjectsName;
import com.google.gerrit.server.config.PluginConfig;
import com.google.gerrit.server.config.ProjectConfigEntry;
import com.google.gerrit.server.git.CodeReviewCommit;
import com.google.gerrit.server.git.ProjectConfig;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectState;
import com.google.inject.Inject;
import java.io.IOException;
import java.util.List;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Repository;
public class MergeValidators {
private final DynamicSet mergeValidationListeners;
private final ProjectConfigValidator.Factory projectConfigValidatorFactory;
public interface Factory {
MergeValidators create();
}
@Inject
MergeValidators(
DynamicSet mergeValidationListeners,
ProjectConfigValidator.Factory projectConfigValidatorFactory) {
this.mergeValidationListeners = mergeValidationListeners;
this.projectConfigValidatorFactory = projectConfigValidatorFactory;
}
public void validatePreMerge(
Repository repo,
CodeReviewCommit commit,
ProjectState destProject,
Branch.NameKey destBranch,
PatchSet.Id patchSetId,
IdentifiedUser caller)
throws MergeValidationException {
List validators =
ImmutableList.of(
new PluginMergeValidationListener(mergeValidationListeners),
projectConfigValidatorFactory.create());
for (MergeValidationListener validator : validators) {
validator.onPreMerge(repo, commit, destProject, destBranch, patchSetId, caller);
}
}
public static class ProjectConfigValidator implements MergeValidationListener {
private static final String INVALID_CONFIG =
"Change contains an invalid project configuration.";
private static final String PARENT_NOT_FOUND =
"Change contains an invalid project configuration:\nParent project does not exist.";
private static final String PLUGIN_VALUE_NOT_EDITABLE =
"Change contains an invalid project configuration:\n"
+ "One of the plugin configuration parameters is not editable.";
private static final String PLUGIN_VALUE_NOT_PERMITTED =
"Change contains an invalid project configuration:\n"
+ "One of the plugin configuration parameters has a value that is not"
+ " permitted.";
private static final String ROOT_NO_PARENT =
"Change contains an invalid project configuration:\n"
+ "The root project cannot have a parent.";
private static final String SET_BY_ADMIN =
"Change contains a project configuration that changes the parent"
+ " project.\n"
+ "The change must be submitted by a Gerrit administrator.";
private final AllProjectsName allProjectsName;
private final ProjectCache projectCache;
private final DynamicMap pluginConfigEntries;
public interface Factory {
ProjectConfigValidator create();
}
@Inject
public ProjectConfigValidator(
AllProjectsName allProjectsName,
ProjectCache projectCache,
DynamicMap pluginConfigEntries) {
this.allProjectsName = allProjectsName;
this.projectCache = projectCache;
this.pluginConfigEntries = pluginConfigEntries;
}
@Override
public void onPreMerge(
final Repository repo,
final CodeReviewCommit commit,
final ProjectState destProject,
final Branch.NameKey destBranch,
final PatchSet.Id patchSetId,
IdentifiedUser caller)
throws MergeValidationException {
if (RefNames.REFS_CONFIG.equals(destBranch.get())) {
final Project.NameKey newParent;
try {
ProjectConfig cfg = new ProjectConfig(destProject.getProject().getNameKey());
cfg.load(repo, commit);
newParent = cfg.getProject().getParent(allProjectsName);
final Project.NameKey oldParent = destProject.getProject().getParent(allProjectsName);
if (oldParent == null) {
// update of the 'All-Projects' project
if (newParent != null) {
throw new MergeValidationException(ROOT_NO_PARENT);
}
} else {
if (!oldParent.equals(newParent)) {
if (!caller.getCapabilities().canAdministrateServer()) {
throw new MergeValidationException(SET_BY_ADMIN);
}
if (projectCache.get(newParent) == null) {
throw new MergeValidationException(PARENT_NOT_FOUND);
}
}
}
for (Entry e : pluginConfigEntries) {
PluginConfig pluginCfg = cfg.getPluginConfig(e.getPluginName());
ProjectConfigEntry configEntry = e.getProvider().get();
String value = pluginCfg.getString(e.getExportName());
String oldValue =
destProject
.getConfig()
.getPluginConfig(e.getPluginName())
.getString(e.getExportName());
if ((value == null ? oldValue != null : !value.equals(oldValue))
&& !configEntry.isEditable(destProject)) {
throw new MergeValidationException(PLUGIN_VALUE_NOT_EDITABLE);
}
if (ProjectConfigEntryType.LIST.equals(configEntry.getType())
&& value != null
&& !configEntry.getPermittedValues().contains(value)) {
throw new MergeValidationException(PLUGIN_VALUE_NOT_PERMITTED);
}
}
} catch (ConfigInvalidException | IOException e) {
throw new MergeValidationException(INVALID_CONFIG);
}
}
}
}
/** Execute merge validation plug-ins */
public static class PluginMergeValidationListener implements MergeValidationListener {
private final DynamicSet mergeValidationListeners;
public PluginMergeValidationListener(
DynamicSet mergeValidationListeners) {
this.mergeValidationListeners = mergeValidationListeners;
}
@Override
public void onPreMerge(
Repository repo,
CodeReviewCommit commit,
ProjectState destProject,
Branch.NameKey destBranch,
PatchSet.Id patchSetId,
IdentifiedUser caller)
throws MergeValidationException {
for (MergeValidationListener validator : mergeValidationListeners) {
validator.onPreMerge(repo, commit, destProject, destBranch, patchSetId, caller);
}
}
}
}
