| // Copyright (C) 2014 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.googlesource.gerrit.plugins.uploadvalidator; |
| |
| import com.google.gerrit.extensions.annotations.Exports; |
| import com.google.gerrit.extensions.annotations.PluginName; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.gerrit.server.config.PluginConfig; |
| import com.google.gerrit.server.config.PluginConfigFactory; |
| import com.google.gerrit.server.config.ProjectConfigEntry; |
| import com.google.gerrit.server.events.CommitReceivedEvent; |
| import com.google.gerrit.server.git.GitRepositoryManager; |
| import com.google.gerrit.server.git.validators.CommitValidationException; |
| import com.google.gerrit.server.git.validators.CommitValidationListener; |
| import com.google.gerrit.server.git.validators.CommitValidationMessage; |
| import com.google.gerrit.server.project.NoSuchProjectException; |
| import com.google.inject.AbstractModule; |
| import com.google.inject.Inject; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.eclipse.jgit.revwalk.RevWalk; |
| |
| public class MaxPathLengthValidator implements CommitValidationListener { |
| |
| public static AbstractModule module() { |
| return new AbstractModule() { |
| |
| @Override |
| protected void configure() { |
| DynamicSet.bind(binder(), CommitValidationListener.class).to(MaxPathLengthValidator.class); |
| bind(ProjectConfigEntry.class) |
| .annotatedWith(Exports.named(KEY_MAX_PATH_LENGTH)) |
| .toInstance( |
| new ProjectConfigEntry( |
| "Max Path Length", |
| 0, |
| false, |
| "Maximum path length. Pushes of commits that " |
| + "contain files with longer paths will be rejected. " |
| + "'0' means no limit.")); |
| } |
| }; |
| } |
| |
| public static final String KEY_MAX_PATH_LENGTH = "maxPathLength"; |
| |
| private final String pluginName; |
| private final PluginConfigFactory cfgFactory; |
| private final GitRepositoryManager repoManager; |
| private final ValidatorConfig validatorConfig; |
| |
| @Inject |
| MaxPathLengthValidator( |
| @PluginName String pluginName, |
| PluginConfigFactory cfgFactory, |
| GitRepositoryManager repoManager, |
| ValidatorConfig validatorConfig) { |
| this.pluginName = pluginName; |
| this.cfgFactory = cfgFactory; |
| this.repoManager = repoManager; |
| this.validatorConfig = validatorConfig; |
| } |
| |
| static boolean isActive(PluginConfig cfg) { |
| return cfg.getInt(KEY_MAX_PATH_LENGTH, 0) > 0; |
| } |
| |
| @Override |
| public List<CommitValidationMessage> onCommitReceived(CommitReceivedEvent receiveEvent) |
| throws CommitValidationException { |
| try { |
| PluginConfig cfg = |
| cfgFactory.getFromProjectConfigWithInheritance( |
| receiveEvent.project.getNameKey(), pluginName); |
| if (isActive(cfg) |
| && validatorConfig.isEnabled( |
| receiveEvent.user, |
| receiveEvent.getProjectNameKey(), |
| receiveEvent.getRefName(), |
| KEY_MAX_PATH_LENGTH, |
| receiveEvent.pushOptions)) { |
| int maxPathLength = cfg.getInt(KEY_MAX_PATH_LENGTH, 0); |
| try (Repository repo = repoManager.openRepository(receiveEvent.project.getNameKey())) { |
| List<CommitValidationMessage> messages = |
| performValidation(repo, receiveEvent.commit, receiveEvent.revWalk, maxPathLength); |
| if (!messages.isEmpty()) { |
| throw new CommitValidationException( |
| "contains files with too long paths (max path length: " + maxPathLength + ")", |
| messages); |
| } |
| } |
| } |
| } catch (NoSuchProjectException | IOException e) { |
| throw new CommitValidationException("failed to check for max file path length", e); |
| } |
| return Collections.emptyList(); |
| } |
| |
| static List<CommitValidationMessage> performValidation( |
| Repository repo, RevCommit c, RevWalk revWalk, int maxPathLength) throws IOException { |
| List<CommitValidationMessage> messages = new LinkedList<>(); |
| for (String file : CommitUtils.getChangedPaths(repo, c, revWalk)) { |
| if (file.length() > maxPathLength) { |
| messages.add(new CommitValidationMessage("path too long: " + file, true)); |
| } |
| } |
| return messages; |
| } |
| } |