Line data    Source code

       1             : // Copyright (C) 2018 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.httpd;
      16             : 
      17             : import static com.google.gerrit.extensions.api.lfs.LfsDefinitions.LFS_URL_WO_AUTH_REGEX;
      18             : 
      19             : import com.google.gerrit.extensions.client.GitBasicAuthPolicy;
      20             : import com.google.gerrit.server.config.AuthConfig;
      21             : import com.google.inject.Inject;
      22             : import com.google.inject.servlet.ServletModule;
      23             : import javax.servlet.Filter;
      24             : 
      25             : /** Configures filter for authenticating REST requests. */
      26             : public class GerritAuthModule extends ServletModule {
      27          99 :   static final String NOT_AUTHORIZED_LFS_URL_REGEX = "^(?:(?!/a/))" + LFS_URL_WO_AUTH_REGEX;
      28             :   private final AuthConfig authConfig;
      29             : 
      30             :   @Inject
      31          99 :   GerritAuthModule(AuthConfig authConfig) {
      32          99 :     this.authConfig = authConfig;
      33          99 :   }
      34             : 
      35             :   @Override
      36             :   protected void configureServlets() {
      37          99 :     Class<? extends Filter> authFilter = retreiveAuthFilterFromConfig(authConfig);
      38             : 
      39          99 :     filterRegex(NOT_AUTHORIZED_LFS_URL_REGEX).through(authFilter);
      40          99 :     filter("/a/*").through(authFilter);
      41          99 :   }
      42             : 
      43             :   static Class<? extends Filter> retreiveAuthFilterFromConfig(AuthConfig authConfig) {
      44             :     Class<? extends Filter> authFilter;
      45          99 :     if (authConfig.isTrustContainerAuth()) {
      46           0 :       authFilter = ContainerAuthFilter.class;
      47             :     } else {
      48             :       authFilter =
      49          99 :           authConfig.getGitBasicAuthPolicy() == GitBasicAuthPolicy.OAUTH
      50           0 :               ? ProjectOAuthFilter.class
      51          99 :               : ProjectBasicAuthFilter.class;
      52             :     }
      53          99 :     return authFilter;
      54             :   }
      55             : }