src/core/coreircchannel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2016 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "coreircchannel.h"
  22 #include "corenetwork.h"
  23
  24 INIT_SYNCABLE_OBJECT(CoreIrcChannel)
  25 CoreIrcChannel::CoreIrcChannel(const QString &channelname, Network *network)
  26     : IrcChannel(channelname, network),
  27     _receivedWelcomeMsg(false)
  28 {
  29 #ifdef HAVE_QCA2
  30     _cipher = 0;
  31
  32     // Get the cipher key from CoreNetwork if present
  33     CoreNetwork *coreNetwork = qobject_cast<CoreNetwork *>(network);
  34     if (coreNetwork) {
  35         QByteArray key = coreNetwork->readChannelCipherKey(channelname);
  36         if (!key.isEmpty()) {
  37             setEncrypted(cipher()->setKey(key));
  38         }
  39     }
  40 #endif
  41 }
  42
  43
  44 CoreIrcChannel::~CoreIrcChannel()
  45 {
  46 #ifdef HAVE_QCA2
  47     // Store the cipher key in CoreNetwork, including empty keys if a cipher
  48     // exists. There is no need to store the empty key if no cipher exists; no
  49     // key was present when instantiating and no key was set during the
  50     // channel's lifetime.
  51     CoreNetwork *coreNetwork = qobject_cast<CoreNetwork *>(network());
  52     if (coreNetwork && _cipher) {
  53         coreNetwork->storeChannelCipherKey(name(), _cipher->key());
  54     }
  55
  56     delete _cipher;
  57 #endif
  58 }
  59
  60
  61 #ifdef HAVE_QCA2
  62 Cipher *CoreIrcChannel::cipher() const
  63 {
  64     if (!_cipher)
  65         _cipher = new Cipher();
  66
  67     return _cipher;
  68 }
  69
  70
  71 void CoreIrcChannel::setEncrypted(bool e)
  72 {
  73     IrcChannel::setEncrypted(e);
  74
  75     if (!Cipher::neededFeaturesAvailable())
  76         return;
  77
  78     if (e) {
  79         if (topic().isEmpty())
  80             return;
  81
  82         QByteArray decrypted = cipher()->decryptTopic(topic().toLatin1());
  83         setTopic(decodeString(decrypted));
  84     }
  85 }
  86
  87
  88 #endif