Line data    Source code

       1             : // Copyright (C) 2016 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.server.mail.send;
      16             : 
      17             : import static org.apache.commons.validator.routines.DomainValidator.ArrayType.GENERIC_PLUS;
      18             : 
      19             : import com.google.common.flogger.FluentLogger;
      20             : import com.google.gerrit.server.config.GerritServerConfig;
      21             : import com.google.inject.Inject;
      22             : import com.google.inject.Singleton;
      23             : import org.apache.commons.validator.routines.DomainValidator;
      24             : import org.apache.commons.validator.routines.EmailValidator;
      25             : import org.eclipse.jgit.lib.Config;
      26             : 
      27             : /**
      28             :  * Validator that checks if an email address is valid and allowed for receiving notification emails.
      29             :  *
      30             :  * <p>An email address is valid if it is syntactically correct.
      31             :  *
      32             :  * <p>An email address is allowed if its top level domain is allowed by Gerrit's configuration.
      33             :  */
      34             : @Singleton
      35             : public class OutgoingEmailValidator {
      36         150 :   private static final FluentLogger logger = FluentLogger.forEnclosingClass();
      37             : 
      38             :   @Inject
      39         150 :   OutgoingEmailValidator(@GerritServerConfig Config config) {
      40         150 :     String[] allowTLD = config.getStringList("sendemail", null, "allowTLD");
      41         150 :     if (allowTLD.length != 0) {
      42             :       try {
      43           1 :         DomainValidator.updateTLDOverride(GENERIC_PLUS, allowTLD);
      44           0 :       } catch (IllegalStateException e) {
      45             :         // Should only happen in tests, where the OutgoingEmailValidator
      46             :         // is instantiated repeatedly.
      47           0 :         logger.atSevere().log("Failed to update TLD override: %s", e.getMessage());
      48           1 :       }
      49             :     }
      50         150 :   }
      51             : 
      52             :   public boolean isValid(String addr) {
      53         107 :     return EmailValidator.getInstance(true, true).isValid(addr);
      54             :   }
      55             : }