001package votorola.a.diff.harvest.auth;// Copyright 2011-2012. Christian Weilbach. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Votorola Software"), to deal in the Votorola Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Votorola Software, and to permit persons to whom the Votorola Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Votorola Software. THE VOTOROLA SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE VOTOROLA SOFTWARE OR THE USE OR OTHER DEALINGS IN THE VOTOROLA SOFTWARE. 002 003import votorola.a.diff.harvest.cache.AuthDiffMessage; 004import votorola.a.diff.harvest.cache.DiffMessage; 005import votorola.a.diff.harvest.cache.HarvestCache; 006import votorola.g.lang.ThreadSafe; 007 008/** 009 * This is a trivial authenticator, which author and addressee as email. 010 * 011 * @see HarvestCache 012 */ 013public @ThreadSafe 014class BasicAuthenticator implements Authenticator { 015 016 /** 017 * While officially the local part of mail (before at-sign) is 018 * case-sensitive some mail providers (e.g. gmx.de) change lower-case mails 019 * to first letter upper case. Since authentication is not crucial for 020 * system services here, we therefore match everything by lowercase. 021 */ 022 public AuthDiffMessage verify(final DiffMessage dmsg) throws Exception { 023 final String sender = dmsg.message().mc().sender().toLowerCase(); 024 final String aMail = dmsg.draftPair().aCore().person().email().toLowerCase(); 025 final String bMail = dmsg.draftPair().bCore().person().email().toLowerCase(); 026 027 if (aMail.equals(sender)) { 028 return AuthDiffMessage.create(dmsg, aMail, bMail, "a"); 029 } else if (bMail.equals(sender)) { 030 return AuthDiffMessage.create(dmsg, bMail, aMail, "b"); 031 } else 032 return null; 033 } 034 035}