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tdebase/libkonq/konq_historymgr.cc

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/* 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 TQ_UINT32 KonqHistoryManager::s_historyVersion = 3;
KonqHistoryManager::KonqHistoryManager( TQObject *parent, const char *name )
: KParts::HistoryProvider( parent, name ),
KonqHistoryComm( "KonqHistoryManager" )
{
m_updateTimer = new TQTimer( this );
// defaults
KConfig *config = KGlobal::config();
KConfigGroupSaver cs( config, "HistorySettings" );
m_maxCount = config->readNumEntry( "Maximum of History entries", 500 );
m_maxCount = TQMAX( 1, m_maxCount );
m_maxAgeDays = config->readNumEntry( "Maximum age of History entries", 90);
m_history.setAutoDelete( true );
m_filename = locateLocal( "data",
TQString::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, TQT_SIGNAL( timeout() ), TQT_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();
TQFile 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;
}
TQDataStream fileStream( &file );
TQByteArray 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 :)
TQDataStream crcStream( data, IO_ReadOnly );
if ( !fileStream.atEnd() ) {
TQ_UINT32 version;
fileStream >> version;
TQDataStream *stream = &fileStream;
bool crcChecked = false;
bool crcOk = false;
if ( version == 2 || version == 3) {
TQ_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]
TQ_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;
TQ_CHECK_PTR( entry );
*stream >> *entry;
// kdDebug(1203) << "## loaded entry: " << entry->url << ", Title: " << entry->title << endl;
m_history.append( entry );
TQString urlString2 = entry->url.prettyURL();
addToCompletion( urlString2, entry->typedURL, entry->numberOfTimesVisited );
// and fill our baseclass.
TQString 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;
}
TQDataStream *fileStream = file.dataStream();
*fileStream << s_historyVersion;
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
//We use KURL for marshalling URLs in entries in the V3
//file format
KonqHistoryEntry::marshalURLAsStrings = false;
TQPtrListIterator<KonqHistoryEntry> it( m_history );
KonqHistoryEntry *entry;
while ( (entry = it.current()) ) {
stream << *entry;
++it;
}
//For DCOP, transfer strings instead - wire compat.
KonqHistoryEntry::marshalURLAsStrings = true;
TQ_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 );
TQString 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 TQString& typedURL,
const TQString& title )
{
addToHistory( true, url, typedURL, title );
}
void KonqHistoryManager::confirmPending( const KURL& url,
const TQString& typedURL,
const TQString& title )
{
addToHistory( false, url, typedURL, title );
}
void KonqHistoryManager::addToHistory( bool pending, const KURL& _url,
const TQString& typedURL,
const TQString& 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( TQString::null ); // No password in the history, especially not in the completion!
url.setHost( url.host().lower() ); // All host parts lower case
KonqHistoryEntry entry;
TQString 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 = TQDateTime::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.
TQMapIterator<TQString,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 TQString& 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 = TQDateTime::currentDateTime();
entry.lastVisited = entry.firstVisited;
emitAddToHistory( entry );
}
void KonqHistoryManager::emitAddToHistory( const KonqHistoryEntry& entry )
{
TQByteArray data;
TQDataStream 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, TQCString)",
data );
}
void KonqHistoryManager::removePending( const KURL& url )
{
// kdDebug(1203) << "## Removing pending... " << url.prettyURL() << endl;
if ( url.isLocalFile() )
return;
TQMapIterator<TQString,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()
{
TQMapIterator<TQString,KonqHistoryEntry*> it = m_pending.begin();
while ( it != m_pending.end() ) {
delete it.data();
++it;
}
m_pending.clear();
}
void KonqHistoryManager::emitRemoveFromHistory( const KURL& url )
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << url << objId();
kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager",
"notifyRemove(KURL, TQCString)", data );
}
void KonqHistoryManager::emitRemoveFromHistory( const KURL::List& urls )
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << urls << objId();
kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager",
"notifyRemove(KURL::List, TQCString)", data );
}
void KonqHistoryManager::emitClear()
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << objId();
kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager",
"notifyClear(TQCString)", data );
}
void KonqHistoryManager::emitSetMaxCount( TQ_UINT32 count )
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << count << objId();
kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager",
"notifyMaxCount(TQ_UINT32, TQCString)", data );
}
void KonqHistoryManager::emitSetMaxAge( TQ_UINT32 days )
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << days << objId();
kapp->dcopClient()->send( "konqueror*", "KonqHistoryManager",
"notifyMaxAge(TQ_UINT32, TQCString)", data );
}
///////////////////////////////////////////////////////////////////
// DCOP called methods
void KonqHistoryManager::notifyHistoryEntry( KonqHistoryEntry e,
TQCString )
{
//kdDebug(1203) << "Got new entry from Broadcast: " << e.url.prettyURL() << endl;
KonqHistoryEntry *entry = findEntry( e.url );
TQString 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( TQ_UINT32 count, TQCString )
{
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( TQ_UINT32 days, TQCString )
{
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( TQCString )
{
clearPending();
m_history.clear();
m_pCompletion->clear();
if ( isSenderOfBroadcast() )
saveHistory();
KParts::HistoryProvider::clear(); // also emits the cleared() signal
}
void KonqHistoryManager::notifyRemove( KURL url, TQCString )
{
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 );
TQString 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, TQCString )
{
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 );
TQString 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()
{
TQString file = locateLocal( "config", TQString::fromLatin1("konq_history"));
if ( file.isEmpty() )
return false;
KonqHistoryEntry *entry;
KSimpleConfig config( file );
config.setGroup("History");
TQStringList items = config.readListEntry( "CompletionItems" );
TQStringList::Iterator it = items.begin();
while ( it != items.end() ) {
entry = createFallbackEntry( *it );
if ( entry ) {
m_history.append( entry );
addToCompletion( entry->url.prettyURL(), TQString::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 TQString& 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 = TQDateTime::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();
}
TQStringList KonqHistoryManager::allURLs() const
{
TQStringList list;
KonqHistoryIterator it ( m_history );
for ( ; it.current(); ++it )
list.append( it.current()->url.url() );
return list;
}
void KonqHistoryManager::addToCompletion( const TQString& url, const TQString& typedURL,
int numberOfTimesVisited )
{
m_pCompletion->addItem( url, numberOfTimesVisited );
// typed urls have a higher priority
m_pCompletion->addItem( typedURL, numberOfTimesVisited +10 );
}
void KonqHistoryManager::removeFromCompletion( const TQString& url, const TQString& 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( TQPtrCollection::Item item1,
TQPtrCollection::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"
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