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Diffstat (limited to 'libkonq/konq_historymgr.cc')
| -rw-r--r-- | libkonq/konq_historymgr.cc | 733 |
1 files changed, 733 insertions, 0 deletions
diff --git a/libkonq/konq_historymgr.cc b/libkonq/konq_historymgr.cc new file mode 100644 index 000000000..72c6be3de --- /dev/null +++ b/libkonq/konq_historymgr.cc @@ -0,0 +1,733 @@ +/* This file is part of the KDE project + Copyright (C) 2000,2001 Carsten Pfeiffer <pfeiffer@kde.org> + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This program 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "konq_historymgr.h" + +#include <dcopclient.h> + +#include <kapplication.h> +#include <kdebug.h> +#include <ksavefile.h> +#include <ksimpleconfig.h> +#include <kstandarddirs.h> + +#include <zlib.h> + +#include "konqbookmarkmanager.h" + +const Q_UINT32 KonqHistoryManager::s_historyVersion = 3; + +KonqHistoryManager::KonqHistoryManager( QObject *parent, const char *name ) + : KParts::HistoryProvider( parent, name ), + KonqHistoryComm( "KonqHistoryManager" ) +{ + m_updateTimer = new QTimer( this ); + + // defaults + KConfig *config = KGlobal::config(); + KConfigGroupSaver cs( config, "HistorySettings" ); + m_maxCount = config->readNumEntry( "Maximum of History entries", 500 ); + m_maxCount = QMAX( 1, m_maxCount ); + m_maxAgeDays = config->readNumEntry( "Maximum age of History entries", 90); + + m_history.setAutoDelete( true ); + m_filename = locateLocal( "data", + QString::fromLatin1("konqueror/konq_history" )); + + if ( !kapp->dcopClient()->isAttached() ) + kapp->dcopClient()->attach(); + + + // take care of the completion object + m_pCompletion = new KCompletion; + m_pCompletion->setOrder( KCompletion::Weighted ); + + // and load the history + loadHistory(); + + connect( m_updateTimer, SIGNAL( timeout() ), SLOT( slotEmitUpdated() )); +} + + +KonqHistoryManager::~KonqHistoryManager() +{ + delete m_pCompletion; + clearPending(); +} + +bool KonqHistoryManager::isSenderOfBroadcast() +{ + DCOPClient *dc = callingDcopClient(); + return !dc || (dc->senderId() == dc->appId()); +} + +// loads the entire history +bool KonqHistoryManager::loadHistory() +{ + clearPending(); + m_history.clear(); + m_pCompletion->clear(); + + QFile file( m_filename ); + if ( !file.open( IO_ReadOnly ) ) { + if ( file.exists() ) + kdWarning() << "Can't open " << file.name() << endl; + + // try to load the old completion history + bool ret = loadFallback(); + emit loadingFinished(); + return ret; + } + + QDataStream fileStream( &file ); + QByteArray data; // only used for version == 2 + // we construct the stream object now but fill in the data later. + // thanks to QBA's explicit sharing this works :) + QDataStream crcStream( data, IO_ReadOnly ); + + if ( !fileStream.atEnd() ) { + Q_UINT32 version; + fileStream >> version; + + QDataStream *stream = &fileStream; + + bool crcChecked = false; + bool crcOk = false; + + if ( version == 2 || version == 3) { + Q_UINT32 crc; + crcChecked = true; + fileStream >> crc >> data; + crcOk = crc32( 0, reinterpret_cast<unsigned char *>( data.data() ), data.size() ) == crc; + stream = &crcStream; // pick up the right stream + } + + if ( version == 3 ) + { + //Use KURL marshalling for V3 format. + KonqHistoryEntry::marshalURLAsStrings = false; + } + + if ( version != 0 && version < 3 ) //Versions 1,2 (but not 0) are also valid + { + //Turn on backwards compatibility mode.. + KonqHistoryEntry::marshalURLAsStrings = true; + // it doesn't make sense to save to save maxAge and maxCount in the + // binary file, this would make backups impossible (they would clear + // themselves on startup, because all entries expire). + // [But V1 and V2 formats did it, so we do a dummy read] + Q_UINT32 dummy; + *stream >> dummy; + *stream >> dummy; + + //OK. + version = 3; + } + + if ( s_historyVersion != version || ( crcChecked && !crcOk ) ) { + kdWarning() << "The history version doesn't match, aborting loading" << endl; + file.close(); + emit loadingFinished(); + return false; + } + + + while ( !stream->atEnd() ) { + KonqHistoryEntry *entry = new KonqHistoryEntry; + Q_CHECK_PTR( entry ); + *stream >> *entry; + // kdDebug(1203) << "## loaded entry: " << entry->url << ", Title: " << entry->title << endl; + m_history.append( entry ); + QString urlString2 = entry->url.prettyURL(); + + addToCompletion( urlString2, entry->typedURL, entry->numberOfTimesVisited ); + + // and fill our baseclass. + QString urlString = entry->url.url(); + KParts::HistoryProvider::insert( urlString ); + // DF: also insert the "pretty" version if different + // This helps getting 'visited' links on websites which don't use fully-escaped urls. + + if ( urlString != urlString2 ) + KParts::HistoryProvider::insert( urlString2 ); + } + + kdDebug(1203) << "## loaded: " << m_history.count() << " entries." << endl; + + m_history.sort(); + adjustSize(); + } + + + //This is important - we need to switch to a consistent marshalling format for + //communicating between different konqueror instances. Since during an upgrade + //some "old" copies may still running, we use the old format for the DCOP transfers. + //This doesn't make that much difference performance-wise for single entries anyway. + KonqHistoryEntry::marshalURLAsStrings = true; + + + // Theoretically, we should emit update() here, but as we only ever + // load items on startup up to now, this doesn't make much sense. Same + // thing for the above loadFallback(). + // emit KParts::HistoryProvider::update( some list ); + + + + file.close(); + emit loadingFinished(); + + return true; +} + + +// saves the entire history +bool KonqHistoryManager::saveHistory() +{ + KSaveFile file( m_filename ); + if ( file.status() != 0 ) { + kdWarning() << "Can't open " << file.name() << endl; + return false; + } + + QDataStream *fileStream = file.dataStream(); + *fileStream << s_historyVersion; + + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + + //We use KURL for marshalling URLs in entries in the V3 + //file format + KonqHistoryEntry::marshalURLAsStrings = false; + QPtrListIterator<KonqHistoryEntry> it( m_history ); + KonqHistoryEntry *entry; + while ( (entry = it.current()) ) { + stream << *entry; + ++it; + } + + //For DCOP, transfer strings instead - wire compat. + KonqHistoryEntry::marshalURLAsStrings = true; + + Q_UINT32 crc = crc32( 0, reinterpret_cast<unsigned char *>( data.data() ), data.size() ); + *fileStream << crc << data; + + file.close(); + + return true; +} + + +void KonqHistoryManager::adjustSize() +{ + KonqHistoryEntry *entry = m_history.getFirst(); + + while ( m_history.count() > m_maxCount || isExpired( entry ) ) { + removeFromCompletion( entry->url.prettyURL(), entry->typedURL ); + + QString urlString = entry->url.url(); + KParts::HistoryProvider::remove( urlString ); + + addToUpdateList( urlString ); + + emit entryRemoved( m_history.getFirst() ); + m_history.removeFirst(); // deletes the entry + + entry = m_history.getFirst(); + } +} + + +void KonqHistoryManager::addPending( const KURL& url, const QString& typedURL, + const QString& title ) +{ + addToHistory( true, url, typedURL, title ); +} + +void KonqHistoryManager::confirmPending( const KURL& url, + const QString& typedURL, + const QString& title ) +{ + addToHistory( false, url, typedURL, title ); +} + + +void KonqHistoryManager::addToHistory( bool pending, const KURL& _url, + const QString& typedURL, + const QString& title ) +{ + kdDebug(1203) << "## addToHistory: " << _url.prettyURL() << " Typed URL: " << typedURL << ", Title: " << title << endl; + + if ( filterOut( _url ) ) // we only want remote URLs + return; + + // http URLs without a path will get redirected immediately to url + '/' + if ( _url.path().isEmpty() && _url.protocol().startsWith("http") ) + return; + + KURL url( _url ); + bool hasPass = url.hasPass(); + url.setPass( QString::null ); // No password in the history, especially not in the completion! + url.setHost( url.host().lower() ); // All host parts lower case + KonqHistoryEntry entry; + QString u = url.prettyURL(); + entry.url = url; + if ( (u != typedURL) && !hasPass ) + entry.typedURL = typedURL; + + // we only keep the title if we are confirming an entry. Otherwise, + // we might get bogus titles from the previous url (actually it's just + // konqueror's window caption). + if ( !pending && u != title ) + entry.title = title; + entry.firstVisited = QDateTime::currentDateTime(); + entry.lastVisited = entry.firstVisited; + + // always remove from pending if available, otherwise the else branch leaks + // if the map already contains an entry for this key. + QMapIterator<QString,KonqHistoryEntry*> it = m_pending.find( u ); + if ( it != m_pending.end() ) { + delete it.data(); + m_pending.remove( it ); + } + + if ( !pending ) { + if ( it != m_pending.end() ) { + // we make a pending entry official, so we just have to update + // and not increment the counter. No need to care about + // firstVisited, as this is not taken into account on update. + entry.numberOfTimesVisited = 0; + } + } + + else { + // We add a copy of the current history entry of the url to the + // pending list, so that we can restore it if the user canceled. + // If there is no entry for the url yet, we just store the url. + KonqHistoryEntry *oldEntry = findEntry( url ); + m_pending.insert( u, oldEntry ? + new KonqHistoryEntry( *oldEntry ) : 0L ); + } + + // notify all konqueror instances about the entry + emitAddToHistory( entry ); +} + +// interface of KParts::HistoryManager +// Usually, we only record the history for non-local URLs (i.e. filterOut() +// returns false). But when using the HistoryProvider interface, we record +// exactly those filtered-out urls. +// Moreover, we don't get any pending/confirming entries, just one insert() +void KonqHistoryManager::insert( const QString& url ) +{ + KURL u ( url ); + if ( !filterOut( u ) || u.protocol() == "about" ) { // remote URL + return; + } + // Local URL -> add to history + KonqHistoryEntry entry; + entry.url = u; + entry.firstVisited = QDateTime::currentDateTime(); + entry.lastVisited = entry.firstVisited; + emitAddToHistory( entry ); +} + +void KonqHistoryManager::emitAddToHistory( const KonqHistoryEntry& entry ) +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << entry << objId(); + // Protection against very long urls (like data:) + if ( data.size() > 4096 ) + return; + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyHistoryEntry(KonqHistoryEntry, QCString)", + data ); +} + + +void KonqHistoryManager::removePending( const KURL& url ) +{ + // kdDebug(1203) << "## Removing pending... " << url.prettyURL() << endl; + + if ( url.isLocalFile() ) + return; + + QMapIterator<QString,KonqHistoryEntry*> it = m_pending.find( url.prettyURL() ); + if ( it != m_pending.end() ) { + KonqHistoryEntry *oldEntry = it.data(); // the old entry, may be 0L + emitRemoveFromHistory( url ); // remove the current pending entry + + if ( oldEntry ) // we had an entry before, now use that instead + emitAddToHistory( *oldEntry ); + + delete oldEntry; + m_pending.remove( it ); + } +} + +// clears the pending list and makes sure the entries get deleted. +void KonqHistoryManager::clearPending() +{ + QMapIterator<QString,KonqHistoryEntry*> it = m_pending.begin(); + while ( it != m_pending.end() ) { + delete it.data(); + ++it; + } + m_pending.clear(); +} + +void KonqHistoryManager::emitRemoveFromHistory( const KURL& url ) +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << url << objId(); + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyRemove(KURL, QCString)", data ); +} + +void KonqHistoryManager::emitRemoveFromHistory( const KURL::List& urls ) +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << urls << objId(); + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyRemove(KURL::List, QCString)", data ); +} + +void KonqHistoryManager::emitClear() +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << objId(); + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyClear(QCString)", data ); +} + +void KonqHistoryManager::emitSetMaxCount( Q_UINT32 count ) +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << count << objId(); + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyMaxCount(Q_UINT32, QCString)", data ); +} + +void KonqHistoryManager::emitSetMaxAge( Q_UINT32 days ) +{ + QByteArray data; + QDataStream stream( data, IO_WriteOnly ); + stream << days << objId(); + kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager", + "notifyMaxAge(Q_UINT32, QCString)", data ); +} + +/////////////////////////////////////////////////////////////////// +// DCOP called methods + +void KonqHistoryManager::notifyHistoryEntry( KonqHistoryEntry e, + QCString ) +{ + //kdDebug(1203) << "Got new entry from Broadcast: " << e.url.prettyURL() << endl; + + KonqHistoryEntry *entry = findEntry( e.url ); + QString urlString = e.url.url(); + + if ( !entry ) { // create a new history entry + entry = new KonqHistoryEntry; + entry->url = e.url; + entry->firstVisited = e.firstVisited; + entry->numberOfTimesVisited = 0; // will get set to 1 below + m_history.append( entry ); + KParts::HistoryProvider::insert( urlString ); + } + + if ( !e.typedURL.isEmpty() ) + entry->typedURL = e.typedURL; + if ( !e.title.isEmpty() ) + entry->title = e.title; + entry->numberOfTimesVisited += e.numberOfTimesVisited; + entry->lastVisited = e.lastVisited; + + addToCompletion( entry->url.prettyURL(), entry->typedURL ); + + // bool pending = (e.numberOfTimesVisited != 0); + + adjustSize(); + + // note, no need to do the updateBookmarkMetadata for every + // history object, only need to for the broadcast sender as + // the history object itself keeps the data consistant. + bool updated = KonqBookmarkManager::self()->updateAccessMetadata( urlString ); + + if ( isSenderOfBroadcast() ) { + // we are the sender of the broadcast, so we save + saveHistory(); + // note, bk save does not notify, and we don't want to! + if (updated) + KonqBookmarkManager::self()->save(); + } + + addToUpdateList( urlString ); + emit entryAdded( entry ); +} + +void KonqHistoryManager::notifyMaxCount( Q_UINT32 count, QCString ) +{ + m_maxCount = count; + clearPending(); + adjustSize(); + + KConfig *config = KGlobal::config(); + KConfigGroupSaver cs( config, "HistorySettings" ); + config->writeEntry( "Maximum of History entries", m_maxCount ); + + if ( isSenderOfBroadcast() ) { + saveHistory(); + config->sync(); + } +} + +void KonqHistoryManager::notifyMaxAge( Q_UINT32 days, QCString ) +{ + m_maxAgeDays = days; + clearPending(); + adjustSize(); + + KConfig *config = KGlobal::config(); + KConfigGroupSaver cs( config, "HistorySettings" ); + config->writeEntry( "Maximum age of History entries", m_maxAgeDays ); + + if ( isSenderOfBroadcast() ) { + saveHistory(); + config->sync(); + } +} + +void KonqHistoryManager::notifyClear( QCString ) +{ + clearPending(); + m_history.clear(); + m_pCompletion->clear(); + + if ( isSenderOfBroadcast() ) + saveHistory(); + + KParts::HistoryProvider::clear(); // also emits the cleared() signal +} + +void KonqHistoryManager::notifyRemove( KURL url, QCString ) +{ + kdDebug(1203) << "#### Broadcast: remove entry:: " << url.prettyURL() << endl; + + + KonqHistoryEntry *entry = m_history.findEntry( url ); + + if ( entry ) { // entry is now the current item + removeFromCompletion( entry->url.prettyURL(), entry->typedURL ); + + QString urlString = entry->url.url(); + KParts::HistoryProvider::remove( urlString ); + + addToUpdateList( urlString ); + + m_history.take(); // does not delete + emit entryRemoved( entry ); + delete entry; + + if ( isSenderOfBroadcast() ) + saveHistory(); + } +} + +void KonqHistoryManager::notifyRemove( KURL::List urls, QCString ) +{ + kdDebug(1203) << "#### Broadcast: removing list!" << endl; + + bool doSave = false; + KURL::List::Iterator it = urls.begin(); + while ( it != urls.end() ) { + KonqHistoryEntry *entry = m_history.findEntry( *it ); + + if ( entry ) { // entry is now the current item + removeFromCompletion( entry->url.prettyURL(), entry->typedURL ); + + QString urlString = entry->url.url(); + KParts::HistoryProvider::remove( urlString ); + + addToUpdateList( urlString ); + + m_history.take(); // does not delete + emit entryRemoved( entry ); + delete entry; + doSave = true; + } + + ++it; + } + + if (doSave && isSenderOfBroadcast()) + saveHistory(); +} + + +// compatibility fallback, try to load the old completion history +bool KonqHistoryManager::loadFallback() +{ + QString file = locateLocal( "config", QString::fromLatin1("konq_history")); + if ( file.isEmpty() ) + return false; + + KonqHistoryEntry *entry; + KSimpleConfig config( file ); + config.setGroup("History"); + QStringList items = config.readListEntry( "CompletionItems" ); + QStringList::Iterator it = items.begin(); + + while ( it != items.end() ) { + entry = createFallbackEntry( *it ); + if ( entry ) { + m_history.append( entry ); + addToCompletion( entry->url.prettyURL(), QString::null, entry->numberOfTimesVisited ); + + KParts::HistoryProvider::insert( entry->url.url() ); + } + ++it; + } + + m_history.sort(); + adjustSize(); + saveHistory(); + + return true; +} + +// tries to create a small KonqHistoryEntry out of a string, where the string +// looks like "http://www.bla.com/bla.html:23" +// the attached :23 is the weighting from KCompletion +KonqHistoryEntry * KonqHistoryManager::createFallbackEntry(const QString& item) const +{ + // code taken from KCompletion::addItem(), adjusted to use weight = 1 + uint len = item.length(); + uint weight = 1; + + // find out the weighting of this item (appended to the string as ":num") + int index = item.findRev(':'); + if ( index > 0 ) { + bool ok; + weight = item.mid( index + 1 ).toUInt( &ok ); + if ( !ok ) + weight = 1; + + len = index; // only insert until the ':' + } + + + KonqHistoryEntry *entry = 0L; + KURL u( item.left( len )); + if ( u.isValid() ) { + entry = new KonqHistoryEntry; + // that's the only entries we know about... + entry->url = u; + entry->numberOfTimesVisited = weight; + // to make it not expire immediately... + entry->lastVisited = QDateTime::currentDateTime(); + } + + return entry; +} + +KonqHistoryEntry * KonqHistoryManager::findEntry( const KURL& url ) +{ + // small optimization (dict lookup) for items _not_ in our history + if ( !KParts::HistoryProvider::contains( url.url() ) ) + return 0L; + + return m_history.findEntry( url ); +} + +bool KonqHistoryManager::filterOut( const KURL& url ) +{ + return ( url.isLocalFile() || url.host().isEmpty() ); +} + +void KonqHistoryManager::slotEmitUpdated() +{ + emit KParts::HistoryProvider::updated( m_updateURLs ); + m_updateURLs.clear(); +} + +QStringList KonqHistoryManager::allURLs() const +{ + QStringList list; + KonqHistoryIterator it ( m_history ); + for ( ; it.current(); ++it ) + list.append( it.current()->url.url() ); + + return list; +} + +void KonqHistoryManager::addToCompletion( const QString& url, const QString& typedURL, + int numberOfTimesVisited ) +{ + m_pCompletion->addItem( url, numberOfTimesVisited ); + // typed urls have a higher priority + m_pCompletion->addItem( typedURL, numberOfTimesVisited +10 ); +} + +void KonqHistoryManager::removeFromCompletion( const QString& url, const QString& typedURL ) +{ + m_pCompletion->removeItem( url ); + m_pCompletion->removeItem( typedURL ); +} + +////////////////////////////////////////////////////////////////// + + +KonqHistoryEntry * KonqHistoryList::findEntry( const KURL& url ) +{ + // we search backwards, probably faster to find an entry + KonqHistoryEntry *entry = last(); + while ( entry ) { + if ( entry->url == url ) + return entry; + + entry = prev(); + } + + return 0L; +} + +// sort by lastVisited date (oldest go first) +int KonqHistoryList::compareItems( QPtrCollection::Item item1, + QPtrCollection::Item item2 ) +{ + KonqHistoryEntry *entry1 = static_cast<KonqHistoryEntry *>( item1 ); + KonqHistoryEntry *entry2 = static_cast<KonqHistoryEntry *>( item2 ); + + if ( entry1->lastVisited > entry2->lastVisited ) + return 1; + else if ( entry1->lastVisited < entry2->lastVisited ) + return -1; + else + return 0; +} + +using namespace KParts; // for IRIX + +#include "konq_historymgr.moc" |