ucb/source/ucp/ext/ucpext_provider.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2000, 2010 Oracle and/or its affiliates.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * This file is part of OpenOffice.org.
  10  *
  11  * OpenOffice.org is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU Lesser General Public License version 3
  13  * only, as published by the Free Software Foundation.
  14  *
  15  * OpenOffice.org is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU Lesser General Public License version 3 for more details
  19  * (a copy is included in the LICENSE file that accompanied this code).
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * version 3 along with OpenOffice.org.  If not, see
  23  * <http://www.openoffice.org/license.html>
  24  * for a copy of the LGPLv3 License.
  25  *
  26 ************************************************************************/
  27
  28
  29 #include "ucpext_provider.hxx"
  30 #include "ucpext_content.hxx"
  31
  32 /** === begin UNO includes === **/
  33 /** === end UNO includes === **/
  34
  35 #include <ucbhelper/contentidentifier.hxx>
  36 #include <osl/diagnose.h>
  37 #include <osl/mutex.hxx>
  38 #include <comphelper/componentcontext.hxx>
  39 #include <rtl/ustrbuf.hxx>
  40
  41 //......................................................................................................................
  42 namespace ucb { namespace ucp { namespace ext
  43 {
  44 //......................................................................................................................
  45
  46     /** === begin UNO using === **/
  47     using ::com::sun::star::uno::Reference;
  48     using ::com::sun::star::uno::XInterface;
  49     using ::com::sun::star::uno::UNO_QUERY;
  50     using ::com::sun::star::uno::UNO_QUERY_THROW;
  51     using ::com::sun::star::uno::UNO_SET_THROW;
  52     using ::com::sun::star::uno::Exception;
  53     using ::com::sun::star::uno::RuntimeException;
  54     using ::com::sun::star::uno::Any;
  55     using ::com::sun::star::uno::makeAny;
  56     using ::com::sun::star::uno::Sequence;
  57     using ::com::sun::star::uno::Type;
  58     using ::com::sun::star::lang::XMultiServiceFactory;
  59     using ::com::sun::star::ucb::XContentIdentifier;
  60     using ::com::sun::star::ucb::IllegalIdentifierException;
  61     using ::com::sun::star::ucb::XContent;
  62     using ::com::sun::star::uno::XComponentContext;
  63     /** === end UNO using === **/
  64
  65     //==================================================================================================================
  66     //= ContentProvider
  67     //==================================================================================================================
  68     //------------------------------------------------------------------------------------------------------------------
  69     ContentProvider::ContentProvider( const Reference< XMultiServiceFactory >& i_rServiceManager )
  70         :ContentProvider_Base( i_rServiceManager )
  71     {
  72     }
  73
  74     //------------------------------------------------------------------------------------------------------------------
  75     ContentProvider::~ContentProvider()
  76     {
  77     }
  78
  79     //------------------------------------------------------------------------------------------------------------------
  80     ::rtl::OUString SAL_CALL ContentProvider::getImplementationName_static() throw (RuntimeException)
  81     {
  82         return ::rtl::OUString(  "org.openoffice.comp.ucp.ext.ContentProvider"  );
  83     }
  84
  85     //------------------------------------------------------------------------------------------------------------------
  86     ::rtl::OUString SAL_CALL ContentProvider::getImplementationName() throw (RuntimeException)
  87     {
  88         return getImplementationName_static();
  89     }
  90
  91     //------------------------------------------------------------------------------------------------------------------
  92     Sequence< ::rtl::OUString > SAL_CALL ContentProvider::getSupportedServiceNames_static(  ) throw (RuntimeException)
  93     {
  94         Sequence< ::rtl::OUString > aServiceNames(2);
  95         aServiceNames[0] = ::rtl::OUString(  "com.sun.star.ucb.ContentProvider"  );
  96         aServiceNames[1] = ::rtl::OUString(  "com.sun.star.ucb.ExtensionContentProvider"  );
  97         return aServiceNames;
  98     }
  99
 100     //------------------------------------------------------------------------------------------------------------------
 101     Sequence< ::rtl::OUString > SAL_CALL ContentProvider::getSupportedServiceNames(  ) throw (RuntimeException)
 102     {
 103         return getSupportedServiceNames_static();
 104     }
 105
 106     //------------------------------------------------------------------------------------------------------------------
 107     Reference< XInterface > ContentProvider::Create( const Reference< XComponentContext >& i_rContext )
 108     {
 109         const ::comphelper::ComponentContext aContext( i_rContext );
 110         return *( new ContentProvider( aContext.getLegacyServiceFactory() ) );
 111     }
 112
 113     //------------------------------------------------------------------------------------------------------------------
 114     ::rtl::OUString ContentProvider::getRootURL()
 115     {
 116         return ::rtl::OUString(  "vnd.sun.star.extension://"  );
 117     }
 118
 119     //------------------------------------------------------------------------------------------------------------------
 120     ::rtl::OUString ContentProvider::getArtificialNodeContentType()
 121     {
 122         return ::rtl::OUString(  "application/vnd.sun.star.extension-content"  );
 123     }
 124
 125     //------------------------------------------------------------------------------------------------------------------
 126     namespace
 127     {
 128         void lcl_ensureAndTransfer( ::rtl::OUString& io_rIdentifierFragment, ::rtl::OUStringBuffer& o_rNormalization, const sal_Unicode i_nLeadingChar )
 129         {
 130             if ( ( io_rIdentifierFragment.isEmpty() ) || ( io_rIdentifierFragment[0] != i_nLeadingChar ) )
 131                 throw IllegalIdentifierException();
 132             io_rIdentifierFragment = io_rIdentifierFragment.copy( 1 );
 133             o_rNormalization.append( i_nLeadingChar );
 134         }
 135     }
 136
 137     //------------------------------------------------------------------------------------------------------------------
 138     Reference< XContent > SAL_CALL ContentProvider::queryContent( const Reference< XContentIdentifier  >& i_rIdentifier )
 139         throw( IllegalIdentifierException, RuntimeException )
 140     {
 141         // Check URL scheme...
 142         const ::rtl::OUString sScheme( "vnd.sun.star.extension" );
 143         if ( !i_rIdentifier->getContentProviderScheme().equalsIgnoreAsciiCase( sScheme ) )
 144             throw IllegalIdentifierException();
 145
 146         // normalize the identifier
 147         const ::rtl::OUString sIdentifier( i_rIdentifier->getContentIdentifier() );
 148
 149         // the scheme needs to be lower-case
 150         ::rtl::OUStringBuffer aComposer;
 151         aComposer.append( sIdentifier.copy( 0, sScheme.getLength() ).toAsciiLowerCase() );
 152
 153         // one : is required after the scheme
 154         ::rtl::OUString sRemaining( sIdentifier.copy( sScheme.getLength() ) );
 155         lcl_ensureAndTransfer( sRemaining, aComposer, ':' );
 156
 157         // and at least one /
 158         lcl_ensureAndTransfer( sRemaining, aComposer, '/' );
 159
 160         // the normalized form requires one additional /, but we also accept identifiers which don't have it
 161         if ( sRemaining.isEmpty() )
 162         {
 163             // the root content is a special case, it requires ///
 164             aComposer.appendAscii( "//" );
 165         }
 166         else
 167         {
 168             if ( sRemaining[0] != '/' )
 169             {
 170                 aComposer.append( sal_Unicode( '/' ) );
 171                 aComposer.append( sRemaining );
 172             }
 173             else
 174             {
 175                 lcl_ensureAndTransfer( sRemaining, aComposer, '/' );
 176                 // by now, we moved "vnd.sun.star.extension://" from the URL to aComposer
 177                 if ( sRemaining.isEmpty() )
 178                 {
 179                     // again, it's the root content, but one / is missing
 180                     aComposer.append( sal_Unicode( '/' ) );
 181                 }
 182                 else
 183                 {
 184                     aComposer.append( sRemaining );
 185                 }
 186             }
 187         }
 188         const Reference< XContentIdentifier > xNormalizedIdentifier( new ::ucbhelper::ContentIdentifier( m_xSMgr, aComposer.makeStringAndClear() ) );
 189
 190         ::osl::MutexGuard aGuard( m_aMutex );
 191
 192         // check if a content with given id already exists...
 193         Reference< XContent > xContent( queryExistingContent( xNormalizedIdentifier ).get() );
 194         if ( xContent.is() )
 195             return xContent;
 196
 197         // create a new content
 198         xContent = new Content( m_xSMgr, this, xNormalizedIdentifier );
 199         if ( !xContent->getIdentifier().is() )
 200             throw IllegalIdentifierException();
 201
 202         registerNewContent( xContent );
 203         return xContent;
 204     }
 205
 206 //......................................................................................................................
 207 } } }   // namespace ucb::ucp::ext
 208 //......................................................................................................................
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */