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Diffstat (limited to 'khtml/kmultipart/kmultipart.cpp')
| -rw-r--r-- | khtml/kmultipart/kmultipart.cpp | 613 |
1 files changed, 613 insertions, 0 deletions
diff --git a/khtml/kmultipart/kmultipart.cpp b/khtml/kmultipart/kmultipart.cpp new file mode 100644 index 000000000..708bfc54f --- /dev/null +++ b/khtml/kmultipart/kmultipart.cpp @@ -0,0 +1,613 @@ +/* This file is part of the KDE project + Copyright (C) 2002 David Faure <david@mandrakesoft.com> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "kmultipart.h" + +#include <qvbox.h> +#include <kinstance.h> +#include <kmimetype.h> +#include <klocale.h> +#include <kio/job.h> +#include <qfile.h> +#include <ktempfile.h> +#include <kmessagebox.h> +#include <kparts/componentfactory.h> +#include <kparts/genericfactory.h> +#include <khtml_part.h> +#include <unistd.h> +#include <kxmlguifactory.h> +#include <qtimer.h> + +typedef KParts::GenericFactory<KMultiPart> KMultiPartFactory; // factory for the part +K_EXPORT_COMPONENT_FACTORY( libkmultipart /*library name*/, KMultiPartFactory ) + +//#define DEBUG_PARSING + +class KLineParser +{ +public: + KLineParser() { + m_lineComplete = false; + } + void addChar( char c, bool storeNewline ) { + if ( !storeNewline && c == '\r' ) + return; + Q_ASSERT( !m_lineComplete ); + if ( storeNewline || c != '\n' ) { + int sz = m_currentLine.size(); + m_currentLine.resize( sz+1, QGArray::SpeedOptim ); + m_currentLine[sz] = c; + } + if ( c == '\n' ) + m_lineComplete = true; + } + bool isLineComplete() const { + return m_lineComplete; + } + QByteArray currentLine() const { + return m_currentLine; + } + void clearLine() { + Q_ASSERT( m_lineComplete ); + reset(); + } + void reset() { + m_currentLine.resize( 0, QGArray::SpeedOptim ); + m_lineComplete = false; + } +private: + QByteArray m_currentLine; + bool m_lineComplete; // true when ending with '\n' +}; + +/* testcase: + Content-type: multipart/mixed;boundary=ThisRandomString + +--ThisRandomString +Content-type: text/plain + +Data for the first object. + +--ThisRandomString +Content-type: text/plain + +Data for the second and last object. + +--ThisRandomString-- +*/ + + +KMultiPart::KMultiPart( QWidget *parentWidget, const char *widgetName, + QObject *parent, const char *name, const QStringList& ) + : KParts::ReadOnlyPart( parent, name ) +{ + m_filter = 0L; + + setInstance( KMultiPartFactory::instance() ); + + QVBox *box = new QVBox( parentWidget, widgetName ); + setWidget( box ); + + m_extension = new KParts::BrowserExtension( this ); + + // We probably need to use m_extension to get the urlArgs in openURL... + + m_part = 0L; + m_isHTMLPart = false; + m_job = 0L; + m_lineParser = new KLineParser; + m_tempFile = 0L; + + m_timer = new QTimer( this ); + connect( m_timer, SIGNAL( timeout() ), this, SLOT( slotProgressInfo() ) ); +} + +KMultiPart::~KMultiPart() +{ + // important: delete the nested part before the part or qobject destructor runs. + // we now delete the nested part which deletes the part's widget which makes + // _OUR_ m_widget 0 which in turn avoids our part destructor to delete the + // widget ;-) + // ### additional note: it _can_ be that the part has been deleted before: + // when we're in a html frameset and the view dies first, then it will also + // kill the htmlpart + if ( m_part ) + delete static_cast<KParts::ReadOnlyPart *>( m_part ); + delete m_job; + delete m_lineParser; + if ( m_tempFile ) { + m_tempFile->setAutoDelete( true ); + delete m_tempFile; + } + delete m_filter; + m_filter = 0L; +} + + +void KMultiPart::startHeader() +{ + m_bParsingHeader = true; // we expect a header to come first + m_bGotAnyHeader = false; + m_gzip = false; + // just to be sure for now + delete m_filter; + m_filter = 0L; +} + + +bool KMultiPart::openURL( const KURL &url ) +{ + m_url = url; + m_lineParser->reset(); + startHeader(); + + KParts::URLArgs args = m_extension->urlArgs(); + //m_mimeType = args.serviceType; + + // Hmm, args.reload is set to true when reloading, but this doesn't seem to be enough... + // I get "HOLD: Reusing held slave for <url>", and the old data + + m_job = KIO::get( url, args.reload, false ); + + emit started( 0 /*m_job*/ ); // don't pass the job, it would interfer with our own infoMessage + + connect( m_job, SIGNAL( result( KIO::Job * ) ), + this, SLOT( slotJobFinished( KIO::Job * ) ) ); + connect( m_job, SIGNAL( data( KIO::Job *, const QByteArray & ) ), + this, SLOT( slotData( KIO::Job *, const QByteArray & ) ) ); + + m_numberOfFrames = 0; + m_numberOfFramesSkipped = 0; + m_totalNumberOfFrames = 0; + m_qtime.start(); + m_timer->start( 1000 ); //1s + + return true; +} + +// Yes, libkdenetwork's has such a parser already (MultiPart), +// but it works on the complete string, expecting the whole data to be available.... +// The version here is asynchronous. +void KMultiPart::slotData( KIO::Job *job, const QByteArray &data ) +{ + if (m_boundary.isNull()) + { + QString tmp = job->queryMetaData("media-boundary"); + kdDebug() << "Got Boundary from kio-http '" << tmp << "'" << endl; + if ( !tmp.isEmpty() ) { + if (tmp.startsWith("--")) + m_boundary = tmp.latin1(); + else + m_boundary = QCString("--")+tmp.latin1(); + m_boundaryLength = m_boundary.length(); + } + } + // Append to m_currentLine until eol + for ( uint i = 0; i < data.size() ; ++i ) + { + // Store char. Skip if '\n' and currently parsing a header. + m_lineParser->addChar( data[i], !m_bParsingHeader ); + if ( m_lineParser->isLineComplete() ) + { + QByteArray lineData = m_lineParser->currentLine(); +#ifdef DEBUG_PARSING + kdDebug() << "lineData.size()=" << lineData.size() << endl; +#endif + QCString line( lineData.data(), lineData.size()+1 ); // deep copy + // 0-terminate the data, but only for the line-based tests below + // We want to keep the raw data in case it ends up in sendData() + int sz = line.size(); + if ( sz > 0 ) + line[sz-1] = '\0'; +#ifdef DEBUG_PARSING + kdDebug() << "[" << m_bParsingHeader << "] line='" << line << "'" << endl; +#endif + if ( m_bParsingHeader ) + { + if ( !line.isEmpty() ) + m_bGotAnyHeader = true; + if ( m_boundary.isNull() ) + { + if ( !line.isEmpty() ) { +#ifdef DEBUG_PARSING + kdDebug() << "Boundary is " << line << endl; +#endif + m_boundary = line; + m_boundaryLength = m_boundary.length(); + } + } + else if ( !qstrnicmp( line.data(), "Content-Encoding:", 17 ) ) + { + QString encoding = QString::fromLatin1(line.data()+17).stripWhiteSpace().lower(); + if (encoding == "gzip" || encoding == "x-gzip") { + m_gzip = true; + } else { + kdDebug() << "FIXME: unhandled encoding type in KMultiPart: " << encoding << endl; + } + } + // parse Content-Type + else if ( !qstrnicmp( line.data(), "Content-Type:", 13 ) ) + { + Q_ASSERT( m_nextMimeType.isNull() ); + m_nextMimeType = QString::fromLatin1( line.data() + 14 ).stripWhiteSpace(); + int semicolon = m_nextMimeType.find( ';' ); + if ( semicolon != -1 ) + m_nextMimeType = m_nextMimeType.left( semicolon ); + kdDebug() << "m_nextMimeType=" << m_nextMimeType << endl; + } + // Empty line, end of headers (if we had any header line before) + else if ( line.isEmpty() && m_bGotAnyHeader ) + { + m_bParsingHeader = false; +#ifdef DEBUG_PARSING + kdDebug() << "end of headers" << endl; +#endif + startOfData(); + } + // First header (when we know it from kio_http) + else if ( line == m_boundary ) + ; // nothing to do + else if ( !line.isEmpty() ) // this happens with e.g. Set-Cookie: + kdDebug() << "Ignoring header " << line << endl; + } else { + if ( !qstrncmp( line, m_boundary, m_boundaryLength ) ) + { +#ifdef DEBUG_PARSING + kdDebug() << "boundary found!" << endl; + kdDebug() << "after it is " << line.data() + m_boundaryLength << endl; +#endif + // Was it the very last boundary ? + if ( !qstrncmp( line.data() + m_boundaryLength, "--", 2 ) ) + { +#ifdef DEBUG_PARSING + kdDebug() << "Completed!" << endl; +#endif + endOfData(); + emit completed(); + } else + { + char nextChar = *(line.data() + m_boundaryLength); +#ifdef DEBUG_PARSING + kdDebug() << "KMultiPart::slotData nextChar='" << nextChar << "'" << endl; +#endif + if ( nextChar == '\n' || nextChar == '\r' ) { + endOfData(); + startHeader(); + } + else { + // otherwise, false hit, it has trailing stuff + sendData( lineData ); + } + } + } else { + // send to part + sendData( lineData ); + } + } + m_lineParser->clearLine(); + } + } +} + +void KMultiPart::setPart( const QString& mimeType ) +{ + KXMLGUIFactory *guiFactory = factory(); + if ( guiFactory ) // seems to be 0 when restoring from SM + guiFactory->removeClient( this ); + kdDebug() << "KMultiPart::setPart " << mimeType << endl; + delete m_part; + // Try to find an appropriate viewer component + m_part = KParts::ComponentFactory::createPartInstanceFromQuery<KParts::ReadOnlyPart> + ( m_mimeType, QString::null, widget(), 0L, this, 0L ); + if ( !m_part ) { + // TODO launch external app + KMessageBox::error( widget(), i18n("No handler found for %1!").arg(m_mimeType) ); + return; + } + // By making the part a child XMLGUIClient of ours, we get its GUI merged in. + insertChildClient( m_part ); + m_part->widget()->show(); + + connect( m_part, SIGNAL( completed() ), + this, SLOT( slotPartCompleted() ) ); + + m_isHTMLPart = ( mimeType == "text/html" ); + KParts::BrowserExtension* childExtension = KParts::BrowserExtension::childObject( m_part ); + + if ( childExtension ) + { + + // Forward signals from the part's browser extension + // this is very related (but not exactly like) KHTMLPart::processObjectRequest + + connect( childExtension, SIGNAL( openURLNotify() ), + m_extension, SIGNAL( openURLNotify() ) ); + + connect( childExtension, SIGNAL( openURLRequestDelayed( const KURL &, const KParts::URLArgs & ) ), + m_extension, SIGNAL( openURLRequest( const KURL &, const KParts::URLArgs & ) ) ); + + connect( childExtension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & ) ), + m_extension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & ) ) ); + connect( childExtension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs &, const KParts::WindowArgs &, KParts::ReadOnlyPart *& ) ), + m_extension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & , const KParts::WindowArgs &, KParts::ReadOnlyPart *&) ) ); + + // Keep in sync with khtml_part.cpp + connect( childExtension, SIGNAL( popupMenu( const QPoint &, const KFileItemList & ) ), + m_extension, SIGNAL( popupMenu( const QPoint &, const KFileItemList & ) ) ); + connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList & ) ), + m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList & ) ) ); + connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags ) ), + m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags ) ) ); + connect( childExtension, SIGNAL( popupMenu( const QPoint &, const KURL &, const QString &, mode_t ) ), + m_extension, SIGNAL( popupMenu( const QPoint &, const KURL &, const QString &, mode_t ) ) ); + connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const QString &, mode_t ) ), + m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const QString &, mode_t ) ) ); + connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t ) ), + m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t ) ) ); + + + if ( m_isHTMLPart ) + connect( childExtension, SIGNAL( infoMessage( const QString & ) ), + m_extension, SIGNAL( infoMessage( const QString & ) ) ); + // For non-HTML we prefer to show our infoMessage ourselves. + + childExtension->setBrowserInterface( m_extension->browserInterface() ); + + connect( childExtension, SIGNAL( enableAction( const char *, bool ) ), + m_extension, SIGNAL( enableAction( const char *, bool ) ) ); + connect( childExtension, SIGNAL( setLocationBarURL( const QString& ) ), + m_extension, SIGNAL( setLocationBarURL( const QString& ) ) ); + connect( childExtension, SIGNAL( setIconURL( const KURL& ) ), + m_extension, SIGNAL( setIconURL( const KURL& ) ) ); + connect( childExtension, SIGNAL( loadingProgress( int ) ), + m_extension, SIGNAL( loadingProgress( int ) ) ); + if ( m_isHTMLPart ) // for non-HTML we have our own + connect( childExtension, SIGNAL( speedProgress( int ) ), + m_extension, SIGNAL( speedProgress( int ) ) ); + connect( childExtension, SIGNAL( selectionInfo( const KFileItemList& ) ), + m_extension, SIGNAL( selectionInfo( const KFileItemList& ) ) ); + connect( childExtension, SIGNAL( selectionInfo( const QString& ) ), + m_extension, SIGNAL( selectionInfo( const QString& ) ) ); + connect( childExtension, SIGNAL( selectionInfo( const KURL::List& ) ), + m_extension, SIGNAL( selectionInfo( const KURL::List& ) ) ); + connect( childExtension, SIGNAL( mouseOverInfo( const KFileItem* ) ), + m_extension, SIGNAL( mouseOverInfo( const KFileItem* ) ) ); + connect( childExtension, SIGNAL( moveTopLevelWidget( int, int ) ), + m_extension, SIGNAL( moveTopLevelWidget( int, int ) ) ); + connect( childExtension, SIGNAL( resizeTopLevelWidget( int, int ) ), + m_extension, SIGNAL( resizeTopLevelWidget( int, int ) ) ); + } + + m_partIsLoading = false; + // Load the part's plugins too. + // ###### This is a hack. The bug is that KHTMLPart doesn't load its plugins + // if className != "Browser/View". + loadPlugins( this, m_part, m_part->instance() ); + // Get the part's GUI to appear + if ( guiFactory ) + guiFactory->addClient( this ); +} + +void KMultiPart::startOfData() +{ + kdDebug() << "KMultiPart::startOfData" << endl; + Q_ASSERT( !m_nextMimeType.isNull() ); + if( m_nextMimeType.isNull() ) + return; + + if ( m_gzip ) + { + m_filter = new HTTPFilterGZip; + connect( m_filter, SIGNAL( output( const QByteArray& ) ), this, SLOT( reallySendData( const QByteArray& ) ) ); + } + + if ( m_mimeType != m_nextMimeType ) + { + // Need to switch parts (or create the initial one) + m_mimeType = m_nextMimeType; + setPart( m_mimeType ); + } + Q_ASSERT( m_part ); + // Pass URLArgs (e.g. reload) + KParts::BrowserExtension* childExtension = KParts::BrowserExtension::childObject( m_part ); + if ( childExtension ) + childExtension->setURLArgs( m_extension->urlArgs() ); + + m_nextMimeType = QString::null; + if ( m_tempFile ) { + m_tempFile->setAutoDelete( true ); + delete m_tempFile; + m_tempFile = 0; + } + if ( m_isHTMLPart ) + { + KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) ); + htmlPart->begin( url() ); + } + else + { + // ###### TODO use a QByteArray and a data: URL instead + m_tempFile = new KTempFile; + } +} + +void KMultiPart::sendData( const QByteArray& line ) +{ + if ( m_filter ) + { + m_filter->slotInput( line ); + } + else + { + reallySendData( line ); + } +} + +void KMultiPart::reallySendData( const QByteArray& line ) +{ + if ( m_isHTMLPart ) + { + KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) ); + htmlPart->write( line.data(), line.size() ); + } + else if ( m_tempFile ) + { + m_tempFile->file()->writeBlock( line.data(), line.size() ); + } +} + +void KMultiPart::endOfData() +{ + Q_ASSERT( m_part ); + if ( m_isHTMLPart ) + { + KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) ); + htmlPart->end(); + } else if ( m_tempFile ) + { + m_tempFile->close(); + if ( m_partIsLoading ) + { + // The part is still loading the last data! Let it proceed then + // Otherwise we'd keep cancelling it, and nothing would ever show up... + kdDebug() << "KMultiPart::endOfData part isn't ready, skipping frame" << endl; + ++m_numberOfFramesSkipped; + m_tempFile->setAutoDelete( true ); + } + else + { + kdDebug() << "KMultiPart::endOfData opening " << m_tempFile->name() << endl; + KURL url; + url.setPath( m_tempFile->name() ); + m_partIsLoading = true; + (void) m_part->openURL( url ); + } + delete m_tempFile; + m_tempFile = 0L; + } +} + +void KMultiPart::slotPartCompleted() +{ + if ( !m_isHTMLPart ) + { + Q_ASSERT( m_part ); + // Delete temp file used by the part + Q_ASSERT( m_part->url().isLocalFile() ); + kdDebug() << "slotPartCompleted deleting " << m_part->url().path() << endl; + (void) unlink( QFile::encodeName( m_part->url().path() ) ); + m_partIsLoading = false; + ++m_numberOfFrames; + // Do not emit completed from here. + } +} + +bool KMultiPart::closeURL() +{ + m_timer->stop(); + if ( m_part ) + return m_part->closeURL(); + return true; +} + +void KMultiPart::guiActivateEvent( KParts::GUIActivateEvent * ) +{ + // Not public! + //if ( m_part ) + // m_part->guiActivateEvent( e ); +} + +void KMultiPart::slotJobFinished( KIO::Job *job ) +{ + if ( job->error() ) + { + // TODO use khtml's error:// scheme + job->showErrorDialog(); + emit canceled( job->errorString() ); + } + else + { + /*if ( m_khtml->view()->contentsY() == 0 ) + { + KParts::URLArgs args = m_ext->urlArgs(); + m_khtml->view()->setContentsPos( args.xOffset, args.yOffset ); + }*/ + + emit completed(); + + //QTimer::singleShot( 0, this, SLOT( updateWindowCaption() ) ); + } + m_job = 0L; +} + +void KMultiPart::slotProgressInfo() +{ + int time = m_qtime.elapsed(); + if ( !time ) return; + if ( m_totalNumberOfFrames == m_numberOfFrames + m_numberOfFramesSkipped ) + return; // No change, don't overwrite statusbar messages if any + //kdDebug() << m_numberOfFrames << " in " << time << " milliseconds" << endl; + QString str( "%1 frames per second, %2 frames skipped per second" ); + str = str.arg( 1000.0 * (double)m_numberOfFrames / (double)time ); + str = str.arg( 1000.0 * (double)m_numberOfFramesSkipped / (double)time ); + m_totalNumberOfFrames = m_numberOfFrames + m_numberOfFramesSkipped; + //kdDebug() << str << endl; + emit m_extension->infoMessage( str ); +} + +KAboutData* KMultiPart::createAboutData() +{ + KAboutData* aboutData = new KAboutData( "kmultipart", I18N_NOOP("KMultiPart"), + "0.1", + I18N_NOOP( "Embeddable component for multipart/mixed" ), + KAboutData::License_GPL, + "(c) 2001, David Faure <david@mandrakesoft.com>"); + return aboutData; +} + +#if 0 +KMultiPartBrowserExtension::KMultiPartBrowserExtension( KMultiPart *parent, const char *name ) + : KParts::BrowserExtension( parent, name ) +{ + m_imgPart = parent; +} + +int KMultiPartBrowserExtension::xOffset() +{ + return m_imgPart->doc()->view()->contentsX(); +} + +int KMultiPartBrowserExtension::yOffset() +{ + return m_imgPart->doc()->view()->contentsY(); +} + +void KMultiPartBrowserExtension::print() +{ + static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->print(); +} + +void KMultiPartBrowserExtension::reparseConfiguration() +{ + static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->reparseConfiguration(); + m_imgPart->doc()->setAutoloadImages( true ); +} +#endif + +#include "kmultipart.moc" |