svl/source/fsstor/fsfactory.cxx

   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 "fsfactory.hxx"
  22 #include "cppuhelper/factory.hxx"
  23 #include <com/sun/star/ucb/XSimpleFileAccess.hpp>
  24 #include <com/sun/star/embed/ElementModes.hpp>
  25 #include <com/sun/star/io/XSeekable.hpp>
  26 #include <comphelper/processfactory.hxx>
  27
  28 #include <ucbhelper/fileidentifierconverter.hxx>
  29 #include <ucbhelper/content.hxx>
  30
  31 #include <unotools/tempfile.hxx>
  32 #include <unotools/ucbhelper.hxx>
  33
  34 #include "fsstorage.hxx"
  35
  36
  37 using namespace ::com::sun::star;
  38
  39 //-------------------------------------------------------------------------
  40 uno::Sequence< OUString > SAL_CALL FSStorageFactory::impl_staticGetSupportedServiceNames()
  41 {
  42     uno::Sequence< OUString > aRet(2);
  43     aRet[0] = OUString("com.sun.star.embed.FileSystemStorageFactory");
  44     aRet[1] = OUString("com.sun.star.comp.embed.FileSystemStorageFactory");
  45     return aRet;
  46 }
  47
  48 //-------------------------------------------------------------------------
  49 OUString SAL_CALL FSStorageFactory::impl_staticGetImplementationName()
  50 {
  51     return OUString("com.sun.star.comp.embed.FileSystemStorageFactory");
  52 }
  53
  54 //-------------------------------------------------------------------------
  55 uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::impl_staticCreateSelfInstance(
  56             const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
  57 {
  58     return uno::Reference< uno::XInterface >( *new FSStorageFactory( xServiceManager ) );
  59 }
  60
  61 //-------------------------------------------------------------------------
  62 uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::createInstance()
  63     throw ( uno::Exception,
  64             uno::RuntimeException )
  65 {
  66     OUString aTempURL;
  67
  68     aTempURL = ::utl::TempFile( NULL, sal_True ).GetURL();
  69
  70     if ( aTempURL.isEmpty() )
  71         throw uno::RuntimeException(); // TODO: can not create tempfile
  72
  73     ::ucbhelper::Content aResultContent(
  74         aTempURL, uno::Reference< ucb::XCommandEnvironment >(),
  75         comphelper::getProcessComponentContext() );
  76
  77     return uno::Reference< uno::XInterface >(
  78         static_cast< OWeakObject* >(
  79             new FSStorage(  aResultContent,
  80                             embed::ElementModes::READWRITE,
  81                             m_xFactory ) ),
  82         uno::UNO_QUERY );
  83 }
  84
  85 //-------------------------------------------------------------------------
  86 uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::createInstanceWithArguments(
  87             const uno::Sequence< uno::Any >& aArguments )
  88     throw ( uno::Exception,
  89             uno::RuntimeException )
  90 {
  91     // The request for storage can be done with up to three arguments
  92
  93     // The first argument specifies a source for the storage
  94     // it must be URL.
  95     // The second value is a mode the storage should be open in.
  96     // And the third value is a media descriptor.
  97
  98     sal_Int32 nArgNum = aArguments.getLength();
  99     OSL_ENSURE( nArgNum < 4, "Wrong parameter number" );
 100
 101     if ( !nArgNum )
 102         return createInstance();
 103
 104     // first try to retrieve storage open mode if any
 105     // by default the storage will be open in readonly mode
 106     sal_Int32 nStorageMode = embed::ElementModes::READ;
 107     if ( nArgNum >= 2 )
 108     {
 109         if( !( aArguments[1] >>= nStorageMode ) )
 110         {
 111             throw lang::IllegalArgumentException(
 112                 ("second argument to css.embed.FileSystemStorageFactory."
 113                  "createInstanceWithArguments must be a"
 114                  " css.embed.ElementModes"),
 115                 static_cast< OWeakObject * >(this), -1);
 116         }
 117         // it's always possible to read written storage in this implementation
 118         nStorageMode |= embed::ElementModes::READ;
 119     }
 120
 121     // retrieve storage source URL
 122     OUString aURL;
 123
 124     if ( !( aArguments[0] >>= aURL ) || aURL.isEmpty() )
 125     {
 126         throw lang::IllegalArgumentException(
 127             ("first argument to"
 128              " css.embed.FileSystemStorageFactory.createInstanceWithArguments"
 129              " must be a (non-empty) URL"),
 130             static_cast< OWeakObject * >(this), -1);
 131     }
 132
 133     // allow to use other ucp's
 134     // if ( !isLocalNotFile_Impl( aURL ) )
 135     if ( aURL.equalsIgnoreAsciiCase("vnd.sun.star.pkg")
 136       || aURL.equalsIgnoreAsciiCase("vnd.sun.star.zip")
 137       || ::utl::UCBContentHelper::IsDocument( aURL ) )
 138     {
 139         throw lang::IllegalArgumentException(
 140             ("URL \"" + aURL + "\" passed as first argument to"
 141              " css.embed.FileSystemStorageFactory.createInstanceWithArguments"
 142              " must be a file URL denoting a directory"),
 143             static_cast< OWeakObject * >(this), -1);
 144     }
 145
 146     if ( ( nStorageMode & embed::ElementModes::WRITE ) && !( nStorageMode & embed::ElementModes::NOCREATE ) )
 147         FSStorage::MakeFolderNoUI( aURL );
 148     else if ( !::utl::UCBContentHelper::IsFolder( aURL ) )
 149         throw io::IOException(
 150             ("URL \"" + aURL + "\" passed to"
 151              " css.embed.FileSystemStorageFactory.createInstanceWithArguments"
 152              " does not denote an existing directory"),
 153             static_cast< OWeakObject * >(this));
 154
 155     ::ucbhelper::Content aResultContent(
 156         aURL, uno::Reference< ucb::XCommandEnvironment >(),
 157         comphelper::getProcessComponentContext() );
 158
 159     // create storage based on source
 160     return uno::Reference< uno::XInterface >(
 161         static_cast< OWeakObject* >( new FSStorage( aResultContent,
 162                                                     nStorageMode,
 163                                                     m_xFactory ) ),
 164         uno::UNO_QUERY );
 165 }
 166
 167 //-------------------------------------------------------------------------
 168 OUString SAL_CALL FSStorageFactory::getImplementationName()
 169     throw ( uno::RuntimeException )
 170 {
 171     return impl_staticGetImplementationName();
 172 }
 173
 174 //-------------------------------------------------------------------------
 175 sal_Bool SAL_CALL FSStorageFactory::supportsService( const OUString& ServiceName )
 176     throw ( uno::RuntimeException )
 177 {
 178     uno::Sequence< OUString > aSeq = impl_staticGetSupportedServiceNames();
 179
 180     for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
 181         if ( ServiceName == aSeq[nInd] )
 182             return sal_True;
 183
 184     return sal_False;
 185 }
 186
 187 //-------------------------------------------------------------------------
 188 uno::Sequence< OUString > SAL_CALL FSStorageFactory::getSupportedServiceNames()
 189     throw ( uno::RuntimeException )
 190 {
 191     return impl_staticGetSupportedServiceNames();
 192 }
 193
 194 //-------------------------------------------------------------------------
 195
 196 extern "C"
 197 {
 198 SAL_DLLPUBLIC_EXPORT void * SAL_CALL fsstorage_component_getFactory (
 199     const sal_Char * pImplementationName, void * pServiceManager,
 200     SAL_UNUSED_PARAMETER void * /* pRegistryKey */)
 201 {
 202     void * pResult = 0;
 203     if (pServiceManager)
 204     {
 205         uno::Reference< lang::XSingleServiceFactory > xFactory;
 206         if (FSStorageFactory::impl_staticGetImplementationName().compareToAscii (pImplementationName) == 0)
 207         {
 208             xFactory = cppu::createOneInstanceFactory (
 209                 reinterpret_cast< lang::XMultiServiceFactory* >(pServiceManager),
 210                 FSStorageFactory::impl_staticGetImplementationName(),
 211                 FSStorageFactory::impl_staticCreateSelfInstance,
 212                 FSStorageFactory::impl_staticGetSupportedServiceNames() );
 213         }
 214         if (xFactory.is())
 215         {
 216             xFactory->acquire();
 217             pResult = xFactory.get();
 218         }
 219     }
 220     return pResult;
 221 }
 222
 223 } // extern "C"
 224
 225 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */