Files
libreoffice/extensions/source/plugin/base/nfuncs.cxx
Stephan Bergmann f19dda5a55 loplugin:nullptr (automatic rewrite)
Change-Id: I5bbef6c88255f3e8c740a5239a5010cf1251b7fa
2015-11-10 10:31:25 +01:00

645 lines
19 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifdef AIX
#define _LINUX_SOURCE_COMPAT
#include <sys/timer.h>
#undef _LINUX_SOURCE_COMPAT
#endif
#ifdef WNT
#include <prewin.h>
#include <postwin.h>
#endif
#include <cstdarg>
#include <list>
#include <plugin/impl.hxx>
#include <vcl/svapp.hxx>
#include <memory>
#if OSL_DEBUG_LEVEL > 1
#include <osl/thread.h>
#include <osl/thread.hxx>
#include <stdio.h>
static FILE * s_file = 0;
void TRACE( char const * s )
{
if (! s_file)
s_file = stderr;
if (s_file)
{
oslThreadIdentifier t = osl::Thread::getCurrentIdentifier();
fprintf( s_file, "log [t_id=%" SAL_PRIuUINT32 "]: %s\n", t, s );
fflush( s_file );
}
}
void TRACEN( char const * s, long n )
{
if (! s_file)
s_file = stderr;
if (s_file)
{
oslThreadIdentifier t = osl::Thread::getCurrentIdentifier();
fprintf( s_file, "log [t_id=%" SAL_PRIuUINT32 "]: %s%ld\n", t, s, n );
fflush( s_file );
}
}
void TRACES( char const* s, char const* s2 )
{
if (! s_file)
s_file = stderr;
if (s_file)
{
oslThreadIdentifier t = osl::Thread::getCurrentIdentifier();
fprintf( s_file, "log [t_id=%" SAL_PRIuUINT32 "]: %s %s\n", t, s, s2 );
fflush( s_file );
}
}
#else
#define TRACE(x)
#define TRACEN(x,n)
#define TRACES(x,s)
#endif
using namespace com::sun::star::lang;
// Move deprecated functions which no longer appear in npapi.h before
// their use to avoid errors that they're undeclared at point of use
extern "C"
{
const JRIEnvInterface** SAL_CALL NP_LOADDS NPN_GetJavaEnv()
{
TRACE( "NPN_GetJavaEnv" );
// no java in this program
return nullptr;
}
jref SAL_CALL NP_LOADDS NPN_GetJavaPeer( NPP /*instance*/ )
{
TRACE( "NPN_GetJavaPeer" );
return nullptr;
}
}
NPNetscapeFuncs aNPNFuncs =
{
sizeof( NPNetscapeFuncs ),
(NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR,
NPN_GetURL,
NPN_PostURL,
NPN_RequestRead,
NPN_NewStream,
NPN_Write,
NPN_DestroyStream,
NPN_Status,
NPN_UserAgent,
NPN_MemAlloc,
NPN_MemFree,
NPN_MemFlush,
NPN_ReloadPlugins,
NPN_GetJavaEnv,
NPN_GetJavaPeer,
NPN_GetURLNotify,
NPN_PostURLNotify,
NPN_GetValue,
NPN_SetValue,
NPN_InvalidateRect,
NPN_InvalidateRegion,
NPN_ForceRedraw
};
static OString normalizeURL( XPlugin_Impl* plugin, const OString& url )
{
OString aLoadURL;
if( url.indexOf( ':' ) == -1 )
{
aLoadURL = OUStringToOString( plugin->getCreationURL(), plugin->getTextEncoding() );
int nPos;
if( ( nPos = aLoadURL.indexOf( "://" ) ) != -1 )
{
if( url.indexOf( '/' ) != -1 )
{
// this means same server but new path
nPos = aLoadURL.indexOf( '/', nPos+3 );
if( nPos != -1 )
aLoadURL = aLoadURL.copy( 0, url.startsWith("/") ? nPos : nPos+1 );
}
else
{
// same server but new file
nPos = aLoadURL.lastIndexOf( '/' );
aLoadURL = aLoadURL.copy( 0, nPos+1 );
}
aLoadURL += url;
}
else
aLoadURL = url;
}
else if( url.indexOf( ":/" ) != -1 )
aLoadURL = url;
return aLoadURL;
}
struct AsynchronousGetURL
{
OUString aUrl;
OUString aTarget;
Reference< XEventListener > xListener;
DECL_LINK_TYPED( getURL, void*, void );
};
IMPL_LINK_TYPED( AsynchronousGetURL, getURL, void*, p, void )
{
XPlugin_Impl* pImpl = static_cast<XPlugin_Impl*>(p);
try
{
pImpl->enterPluginCallback();
if( xListener.is() )
pImpl->getPluginContext()->
getURLNotify( pImpl,
aUrl,
aTarget,
xListener );
else
pImpl->getPluginContext()->
getURL( pImpl,
aUrl,
aTarget );
}
catch(const css::plugin::PluginException&)
{
}
pImpl->leavePluginCallback();
delete this;
}
extern "C" {
void* SAL_CALL NP_LOADDS NPN_MemAlloc( uint32_t nBytes )
{
TRACE( "NPN_MemAlloc" );
void* pMem = malloc( nBytes );
return pMem;
}
void SAL_CALL NP_LOADDS NPN_MemFree( void* pMem )
{
TRACE( "NPN_MemFree" );
free( pMem );
}
uint32_t SAL_CALL NP_LOADDS NPN_MemFlush( uint32_t /*nSize*/ )
{
TRACE( "NPN_MemFlush" );
return 0;
}
NPError SAL_CALL NP_LOADDS NPN_DestroyStream( NPP instance, NPStream* stream, NPError /*reason*/ )
{
TRACE( "NPN_DestroyStream" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
PluginStream* pStream = pImpl->getStreamFromNPStream( stream );
if( pStream )
{
if( pStream->getStreamType() == InputStream )
static_cast<PluginInputStream*>(pStream)->releaseSelf();
else
delete pStream;
}
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_GetURL( NPP instance, const char* url, const char* window )
{
TRACES( "NPN_GetURL", url );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
AsynchronousGetURL* pAsync = new AsynchronousGetURL();
OString aLoadURL = normalizeURL( pImpl, url );
TRACES( "NPN_GetURL", aLoadURL.getStr() );
pAsync->aUrl = OStringToOUString( aLoadURL, pImpl->getTextEncoding() );
pAsync->aTarget = OStringToOUString( window, pImpl->getTextEncoding() );
pImpl->setLastGetUrl( aLoadURL );
Application::PostUserEvent( LINK( pAsync, AsynchronousGetURL, getURL ), pImpl );
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_GetURLNotify( NPP instance, const char* url, const char* target,
void* notifyData )
{
TRACES( "NPN_GetURLNotify", url );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
OString aLoadURL = normalizeURL( pImpl, url );
if( aLoadURL.isEmpty() )
return NPERR_INVALID_URL;
AsynchronousGetURL* pAsync = new AsynchronousGetURL();
PluginEventListener* pListener =
new PluginEventListener( pImpl, url, aLoadURL.getStr(), notifyData );
if( ! target || ! *target )
{
// stream will be fed back to plugin,
// notify immediately after destruction of stream
pImpl->addPluginEventListener( pListener );
pListener = nullptr;
}
pAsync->aUrl = OStringToOUString( aLoadURL, pImpl->getTextEncoding() );
pAsync->aTarget = OStringToOUString( target, pImpl->getTextEncoding() );
pAsync->xListener = pListener;
pImpl->setLastGetUrl( aLoadURL );
Application::PostUserEvent( LINK( pAsync, AsynchronousGetURL, getURL ), pImpl );
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_NewStream( NPP instance, NPMIMEType type, const char* target,
NPStream** stream )
// stream is a return value
{
TRACE( "NPN_NewStream" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
PluginOutputStream* pStream = new PluginOutputStream( pImpl,
"", 0, 0 );
*stream = &pStream->getStream();
try
{
pImpl->enterPluginCallback();
pImpl->getPluginContext()->
newStream(
pImpl,
OStringToOUString( type, pImpl->getTextEncoding () ),
OStringToOUString( target, pImpl->getTextEncoding() ),
css::uno::Reference< css::io::XActiveDataSource > ( pStream->getOutputStream(), UNO_QUERY )
);
pImpl->leavePluginCallback();
}
catch( const css::plugin::PluginException& e )
{
pImpl->leavePluginCallback();
return e.ErrorCode;
}
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_PostURLNotify( NPP instance, const char* url, const char* target, uint32_t len, const char* buf, NPBool file, void* notifyData )
{
TRACE( "NPN_PostURLNotify" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
css::uno::Sequence<sal_Int8> Bytes( reinterpret_cast<sal_Int8 const *>(buf), len );
OString aPostURL = normalizeURL( pImpl, url );
PluginEventListener* pListener =
new PluginEventListener( pImpl, url, aPostURL.getStr(), notifyData );
if( ! target || ! *target )
{
// stream will be fed back to plugin,
// notify immediately after destruction of stream
pImpl->addPluginEventListener( pListener );
pListener = nullptr;
}
try
{
pImpl->enterPluginCallback();
pImpl->getPluginContext()->
postURLNotify( pImpl,
OStringToOUString( aPostURL, pImpl->getTextEncoding() ),
OStringToOUString( target, pImpl->getTextEncoding() ),
Bytes,
file,
css::uno::Reference< css::lang::XEventListener > ( pListener ) );
pImpl->leavePluginCallback();
}
catch( const css::plugin::PluginException& e )
{
pImpl->leavePluginCallback();
return e.ErrorCode;
}
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_PostURL( NPP instance, const char* url, const char* window, uint32_t len, const char* buf, NPBool file )
{
TRACE( "NPN_PostURL" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return NPERR_INVALID_INSTANCE_ERROR;
css::uno::Sequence<sal_Int8> Bytes( reinterpret_cast<sal_Int8 const *>(buf), len );
OString aPostURL = normalizeURL( pImpl, url );
try
{
pImpl->enterPluginCallback();
pImpl->getPluginContext()->
postURL( pImpl,
OStringToOUString( aPostURL, pImpl->getTextEncoding() ),
OStringToOUString( window, pImpl->getTextEncoding () ),
Bytes,
file );
pImpl->leavePluginCallback();
}
catch( const css::plugin::PluginException& e )
{
pImpl->leavePluginCallback();
return e.ErrorCode;
}
return NPERR_NO_ERROR;
}
NPError SAL_CALL NP_LOADDS NPN_RequestRead( NPStream* stream, NPByteRange* rangeList )
{
TRACE( "NPN_RequestRead" );
if( ! rangeList )
return NPERR_NO_ERROR;
::std::list<XPlugin_Impl*>& rList = PluginManager::get().getPlugins();
::std::list<XPlugin_Impl*>::iterator iter;
XPlugin_Impl* pPlugin = nullptr;
PluginStream* pStream = nullptr;
for( iter = rList.begin(); iter!= rList.end(); ++iter )
{
pStream = (*iter)->getStreamFromNPStream( stream );
if( pStream )
{
pPlugin = *iter;
break;
}
}
if( ! pPlugin )
return NPERR_INVALID_INSTANCE_ERROR;
if( ! pStream || pStream->getStreamType() != InputStream )
return NPERR_FILE_NOT_FOUND;
PluginInputStream* pInputStream = static_cast<PluginInputStream*>(pStream);
std::unique_ptr<sal_Int8[]> pBytes;
int nBytes = 0;
pPlugin->enterPluginCallback();
while( rangeList )
{
if( pBytes && nBytes < (int)rangeList->length )
pBytes.reset();
if( ! pBytes ) {
nBytes = rangeList->length;
pBytes.reset(new sal_Int8[ nBytes ]);
}
int nRead =
pInputStream->read( rangeList->offset, pBytes.get(), rangeList->length );
int nPos = 0;
int nNow;
do
{
nNow = pPlugin->getPluginComm()->
NPP_WriteReady( &pPlugin->getNPPInstance(),
stream );
nNow = pPlugin->getPluginComm()->
NPP_Write( &pPlugin->getNPPInstance(),
stream,
rangeList->offset + nPos,
nNow,
pBytes.get()+nPos );
nPos += nNow;
nRead -= nNow;
} while( nRead > 0 && nNow );
rangeList = rangeList->next;
}
pPlugin->leavePluginCallback();
return NPERR_NO_ERROR;
}
void SAL_CALL NP_LOADDS NPN_Status( NPP instance, const char* message )
{
TRACE( "NPN_Status" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return;
try
{
pImpl->enterPluginCallback();
pImpl->getPluginContext()->
displayStatusText( pImpl, OStringToOUString( message, pImpl->getTextEncoding() ) );
pImpl->leavePluginCallback();
}
catch( const css::plugin::PluginException& )
{
pImpl->leavePluginCallback();
return;
}
}
const char* SAL_CALL NP_LOADDS NPN_UserAgent( NPP instance )
{
static char* pAgent = strdup( "Mozilla 3.0" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( pImpl )
{
OUString UserAgent;
try
{
pImpl->enterPluginCallback();
UserAgent = pImpl->getPluginContext()->
getUserAgent( pImpl );
pImpl->leavePluginCallback();
if( pAgent )
free( pAgent );
pAgent = strdup( OUStringToOString( UserAgent, pImpl->getTextEncoding() ).getStr() );
}
catch( const css::plugin::PluginException& )
{
pImpl->leavePluginCallback();
}
}
TRACES( "NPN_UserAgent: returning", pAgent );
return pAgent;
}
void SAL_CALL NP_LOADDS NPN_Version( int* major, int* minor, int* net_major, int* net_minor )
{
TRACE( "NPN_Version" );
*major = 4;
*minor = 0;
*net_major = 4;
*net_minor = 5;
}
int32_t SAL_CALL NP_LOADDS NPN_Write( NPP instance, NPStream* stream, int32_t len,
void* buffer )
{
TRACE( "NPN_Write" );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return 0;
PluginStream* pStream = pImpl->getStreamFromNPStream( stream );
if( ! pStream || pStream->getStreamType() != OutputStream )
return 0;
pImpl->enterPluginCallback();
css::uno::Sequence<sal_Int8> Bytes( static_cast<sal_Int8*>(buffer), len );
static_cast<PluginOutputStream*>(pStream)->getOutputStream()->writeBytes( Bytes );
pImpl->leavePluginCallback();
return len;
}
NPError SAL_CALL NP_LOADDS NPN_GetValue( NPP instance, NPNVariable variable, void* value )
{
TRACEN( "NPN_GetValue: ", variable );
XPlugin_Impl* pImpl = XPluginManager_Impl::getXPluginFromNPP( instance );
if( ! pImpl )
return 0;
NPError aResult( NPERR_NO_ERROR );
switch( variable )
{
case NPNVxDisplay:
// Unix only, handled in sysdep part
case NPNVxtAppContext:
// Unix only, handled in sysdep part
default:
aResult = NPERR_INVALID_PARAM;
break;
#ifdef MACOSX
case 2000: // NPNVsupportsQuickDrawBool
*(NPBool*)value = false;
break;
case 2001: // NPNVsupportsCoreGraphicsBool
*(NPBool*)value = true;
break;
#endif
case NPNVjavascriptEnabledBool:
// no javascript
*static_cast<NPBool*>(value) = false;
break;
case NPNVasdEnabledBool:
// no SmartUpdate
*static_cast<NPBool*>(value) = false;
break;
case NPNVisOfflineBool:
// no offline browsing
*static_cast<NPBool*>(value) = false;
break;
}
return aResult;
}
void SAL_CALL NP_LOADDS NPN_ReloadPlugins(NPBool /*reloadPages*/)
{
TRACE( "NPN_ReloadPlugins" );
}
NPError SAL_CALL NP_LOADDS NPN_SetValue( NPP instance,
NPPVariable variable,
void* value )
{
NPError nError = NPERR_NO_ERROR;
TRACEN( "NPN_SetValue ", variable );
#ifdef MACOSX
NPN_SetValue_Impl(instance, variable, value);
#else
(void)instance;
(void)variable;
(void)value;
#endif
return nError;
}
void SAL_CALL NP_LOADDS NPN_InvalidateRect(NPP instance, NPRect* /*invalidRect*/)
{
TRACE( "NPN_InvalidateRect" );
#ifdef MACOSX
NPN_ForceRedraw( instance );
#else
(void)instance;
#endif
}
void SAL_CALL NP_LOADDS NPN_InvalidateRegion(NPP instance, NPRegion /*invalidRegion*/)
{
TRACE( "NPN_InvalidateRegion" );
#ifdef MACOSX
NPN_ForceRedraw( instance );
#else
(void)instance;
#endif
}
void SAL_CALL NP_LOADDS NPN_ForceRedraw(NPP instance)
{
TRACE( "NPN_ForceRedraw" );
#ifdef MACOSX
NPN_ForceRedraw_Impl(instance);
#else
(void)instance;
#endif
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */