| // 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.googlesource.gerrit.plugins.replication; |
| |
| import static com.google.gerrit.common.FileUtil.lastModified; |
| |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.inject.Inject; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.util.concurrent.atomic.AtomicReference; |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| import org.eclipse.jgit.transport.CredentialsProvider; |
| |
| public class AutoReloadSecureCredentialsFactoryDecorator implements CredentialsFactory { |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| private final AtomicReference<SecureCredentialsFactory> secureCredentialsFactory; |
| private volatile long secureCredentialsFactoryLoadTs; |
| private final SitePaths site; |
| private ReplicationConfig config; |
| |
| @Inject |
| public AutoReloadSecureCredentialsFactoryDecorator(SitePaths site, ReplicationConfig config) |
| throws ConfigInvalidException, IOException { |
| this.site = site; |
| this.config = config; |
| this.secureCredentialsFactory = new AtomicReference<>(new SecureCredentialsFactory(site)); |
| this.secureCredentialsFactoryLoadTs = getSecureConfigLastEditTs(); |
| } |
| |
| private long getSecureConfigLastEditTs() { |
| if (!Files.exists(site.secure_config)) { |
| return 0L; |
| } |
| return lastModified(site.secure_config); |
| } |
| |
| @Override |
| public CredentialsProvider create(String remoteName) { |
| try { |
| if (needsReload()) { |
| secureCredentialsFactory.compareAndSet( |
| secureCredentialsFactory.get(), new SecureCredentialsFactory(site)); |
| secureCredentialsFactoryLoadTs = getSecureConfigLastEditTs(); |
| logger.atInfo().log("secure.config reloaded as it was updated on the file system"); |
| } |
| } catch (Exception e) { |
| logger.atSevere().withCause(e).log( |
| "Unexpected error while trying to reload " |
| + "secure.config: keeping existing credentials"); |
| } |
| |
| return secureCredentialsFactory.get().create(remoteName); |
| } |
| |
| private boolean needsReload() { |
| return config.getConfig().getBoolean("gerrit", "autoReload", false) |
| && getSecureConfigLastEditTs() != secureCredentialsFactoryLoadTs; |
| } |
| } |