LCOV - code coverage report
Current view: top level - libreoffice/xmlsecurity/source/framework - encryptionengine.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 37 0.0 %
Date: 2012-12-27 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include "encryptionengine.hxx"
      22             : #include <com/sun/star/xml/crypto/XXMLEncryptionTemplate.hpp>
      23             : #include <com/sun/star/xml/wrapper/XXMLElementWrapper.hpp>
      24             : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
      25             : 
      26             : namespace cssu = com::sun::star::uno;
      27             : namespace cssxc = com::sun::star::xml::crypto;
      28             : namespace cssxw = com::sun::star::xml::wrapper;
      29             : 
      30             : #define ENCRYPTION_TEMPLATE "com.sun.star.xml.crypto.XMLEncryptionTemplate"
      31             : 
      32           0 : EncryptionEngine::EncryptionEngine( )
      33           0 :         :m_nIdOfBlocker(-1)
      34             : {
      35           0 : }
      36             : 
      37           0 : bool EncryptionEngine::checkReady() const
      38             : /****** EncryptionEngine/checkReady ******************************************
      39             :  *
      40             :  *   NAME
      41             :  *  checkReady -- checks the conditions for the main operation.
      42             :  *
      43             :  *   SYNOPSIS
      44             :  *  bReady = checkReady( );
      45             :  *
      46             :  *   FUNCTION
      47             :  *  checks whether all following conditions are satisfied:
      48             :  *  1. the main operation has't begun yet;
      49             :  *  2. the key material is known;
      50             :  *  3. the id of the template blocker is known;
      51             :  *  4. both the key element and the encryption template
      52             :  *     are bufferred.
      53             :  *
      54             :  *   INPUTS
      55             :  *  empty
      56             :  *
      57             :  *   RESULT
      58             :  *  bReady - true if all conditions are satisfied, false otherwise
      59             :  *
      60             :  *   AUTHOR
      61             :  *  Michael Mi
      62             :  *  Email: michael.mi@sun.com
      63             :  ******************************************************************************/
      64             : {
      65           0 :     bool rc = true;
      66             : 
      67           0 :     sal_Int32 nKeyInc = 0;
      68           0 :     if (m_nIdOfKeyEC != 0)
      69             :     {
      70           0 :         nKeyInc = 1;
      71             :     }
      72             : 
      73           0 :     if (m_bMissionDone ||
      74             :         m_nIdOfKeyEC == -1 ||
      75             :         m_nIdOfBlocker == -1 ||
      76             :         1+nKeyInc > m_nNumOfResolvedReferences )
      77             :     {
      78           0 :         rc = false;
      79             :     }
      80             : 
      81           0 :     return rc;
      82             : }
      83             : 
      84           0 : void EncryptionEngine::tryToPerform( )
      85             :         throw (cssu::Exception, cssu::RuntimeException)
      86             : /****** EncryptionEngine/tryToPerform ****************************************
      87             :  *
      88             :  *   NAME
      89             :  *  tryToPerform -- tries to perform the encryption/decryption operation.
      90             :  *
      91             :  *   SYNOPSIS
      92             :  *  tryToPerform( );
      93             :  *
      94             :  *   FUNCTION
      95             :  *  if the situation is ready, perform following operations.
      96             :  *  1. prepares a encryption template;
      97             :  *  2. calls the encryption bridge component;
      98             :  *  3. clears up all used resources;
      99             :  *  4. notifies the result listener;
     100             :  *  5. sets the "accomplishment" flag.
     101             :  *
     102             :  *   INPUTS
     103             :  *  empty
     104             :  *
     105             :  *   RESULT
     106             :  *  empty
     107             :  *
     108             :  *   AUTHOR
     109             :  *  Michael Mi
     110             :  *  Email: michael.mi@sun.com
     111             :  ******************************************************************************/
     112             : {
     113           0 :     if (checkReady())
     114             :     {
     115             :         const rtl::OUString sEncryptionTemplate (
     116           0 :             RTL_CONSTASCII_USTRINGPARAM( ENCRYPTION_TEMPLATE ) );
     117             :         cssu::Reference < cssxc::XXMLEncryptionTemplate > xEncryptionTemplate(
     118           0 :             mxMSF->createInstance( sEncryptionTemplate ), cssu::UNO_QUERY );
     119             : 
     120             :         OSL_ASSERT( xEncryptionTemplate.is() );
     121             : 
     122             :         cssu::Reference< cssxw::XXMLElementWrapper > xXMLElement
     123           0 :             = m_xSAXEventKeeper->getElement( m_nIdOfTemplateEC );
     124             : 
     125           0 :         xEncryptionTemplate->setTemplate(xXMLElement);
     126             : 
     127           0 :         startEngine( xEncryptionTemplate );
     128             : 
     129             :         /*
     130             :          * done
     131             :          */
     132           0 :         clearUp( );
     133             : 
     134           0 :         notifyResultListener();
     135             : 
     136           0 :         m_bMissionDone = true;
     137             :     }
     138           0 : }
     139             : 
     140           0 : void EncryptionEngine::clearUp( ) const
     141             : /****** EncryptionEngine/clearup *********************************************
     142             :  *
     143             :  *   NAME
     144             :  *  clearUp -- clear up all resources used by this operation.
     145             :  *
     146             :  *   SYNOPSIS
     147             :  *  clearUp( );
     148             :  *
     149             :  *   FUNCTION
     150             :  *  cleaning resources up includes:
     151             :  *  1. releases the ElementCollector for the encryption template element;
     152             :  *  2. releases the Blocker for the encryption template element;
     153             :  *  3. releases the ElementCollector for the key element, if there is one.
     154             :  *
     155             :  *   INPUTS
     156             :  *  empty
     157             :  *
     158             :  *   RESULT
     159             :  *  empty
     160             :  *
     161             :  *   AUTHOR
     162             :  *  Michael Mi
     163             :  *  Email: michael.mi@sun.com
     164             :  ******************************************************************************/
     165             : {
     166             :     cssu::Reference < cssxc::sax::XReferenceResolvedBroadcaster >
     167           0 :         xReferenceResolvedBroadcaster( m_xSAXEventKeeper, cssu::UNO_QUERY );
     168             : 
     169           0 :     xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
     170             :         m_nIdOfTemplateEC,
     171           0 :         (const cssu::Reference < cssxc::sax::XReferenceResolvedListener >)((SecurityEngine *)this));
     172             : 
     173           0 :     m_xSAXEventKeeper->removeElementCollector(m_nIdOfTemplateEC);
     174             : 
     175           0 :     if (m_nIdOfBlocker != -1)
     176             :     {
     177           0 :         m_xSAXEventKeeper->removeBlocker(m_nIdOfBlocker);
     178             :     }
     179             : 
     180           0 :     if (m_nIdOfKeyEC != 0 && m_nIdOfKeyEC != -1)
     181             :     {
     182           0 :         m_xSAXEventKeeper->removeElementCollector(m_nIdOfKeyEC);
     183           0 :     }
     184           0 : }
     185             : 
     186             : /* XBlockerMonitor */
     187           0 : void SAL_CALL EncryptionEngine::setBlockerId( sal_Int32 id )
     188             :     throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException)
     189             : {
     190           0 :     m_nIdOfBlocker = id;
     191           0 :     tryToPerform();
     192           0 : }
     193             : 
     194             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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