You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tdepim/knode/kncleanup.cpp

320 lines
7.1 KiB

/*
KNode, the KDE newsreader
Copyright (c) 1999-2005 the KNode authors.
See file AUTHORS for details
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US
*/
#include <stdlib.h>
#include <qdir.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qprogressbar.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kseparator.h>
#include <kapplication.h>
#include <kdebug.h>
#include "knfolder.h"
#include "knglobals.h"
#include "kncleanup.h"
#include "knconfig.h"
#include "knfoldermanager.h"
#include "kngroupmanager.h"
#include "knarticlemanager.h"
#include "knnntpaccount.h"
KNCleanUp::KNCleanUp() : d_lg(0)
{
}
KNCleanUp::~KNCleanUp()
{
delete d_lg;
}
void KNCleanUp::start()
{
if ( mColList.isEmpty() )
return;
d_lg = new ProgressDialog( mColList.count() );
d_lg->show();
for ( QValueList<KNArticleCollection*>::Iterator it = mColList.begin(); it != mColList.end(); ++it ) {
if ( (*it)->type() == KNCollection::CTgroup ) {
d_lg->showMessage( i18n("Deleting expired articles in <b>%1</b>").arg( (*it)->name() ) );
kapp->processEvents();
expireGroup( static_cast<KNGroup*>( (*it) ) );
d_lg->doProgress();
}
else if ( (*it)->type() == KNCollection::CTfolder ) {
d_lg->showMessage( i18n("Compacting folder <b>%1</b>").arg( (*it)->name() ) );
kapp->processEvents();
compactFolder( static_cast<KNFolder*>( (*it) ) );
d_lg->doProgress();
}
}
delete d_lg;
d_lg=0;
}
void KNCleanUp::reset()
{
mColList.clear();
if(d_lg) {
delete d_lg;
d_lg=0;
}
}
void KNCleanUp::expireGroup( KNGroup *g, bool showResult )
{
int expDays=0, idRef=0, foundId=-1, delCnt=0, leftCnt=0, newCnt=0, firstArtNr=g->firstNr(), firstNew=-1;
bool unavailable=false;
KNRemoteArticle *art, *ref;
if (!g)
return;
KNConfig::Cleanup *conf = g->activeCleanupConfig();
g->setNotUnloadable(true);
if (!g->isLoaded() && !knGlobals.groupManager()->loadHeaders(g)) {
g->setNotUnloadable(false);
return;
}
//find all expired
for(int i=0; i<g->length(); i++) {
art=g->at(i);
if(art->isRead())
expDays = conf->maxAgeForRead();
else
expDays = conf->maxAgeForUnread();
unavailable = false;
if ((art->articleNumber() != -1) && conf->removeUnavailable())
unavailable = (art->articleNumber() < firstArtNr);
art->setExpired( (art->date()->ageInDays() >= expDays) || unavailable );
}
//save threads
if (conf->preserveThreads()) {
for(int i=0; i<g->length(); i++) {
art=g->at(i);
if(!art->isExpired()) {
idRef=art->idRef();
while(idRef!=0) {
ref=g->byId(idRef);
ref->setExpired(false);
idRef=ref->idRef();
}
}
}
}
//restore threading
for(int i=0; i<g->length(); i++) {
art=g->at(i);
if(!art->isExpired()) {
idRef=art->idRef();
foundId=0;
while(foundId==0 && idRef!=0) {
ref=g->byId(idRef);
if(!ref->isExpired()) foundId=ref->id();
idRef=ref->idRef();
}
art->setIdRef(foundId);
}
}
//delete expired
for(int i=0; i<g->length(); i++) {
art=g->at(i);
if(art->isExpired()) {
if(art->isRead())
g->decReadCount();
delCnt++;
if (art->hasContent())
knGlobals.articleManager()->unloadArticle(art, true);
}
else if(art->isNew() && !art->isRead()) {
if(firstNew==-1)
firstNew=i;
newCnt++;
}
}
g->setNotUnloadable(false);
if(delCnt>0) {
g->saveStaticData(g->length(), true);
g->saveDynamicData(g->length(), true);
g->decCount(delCnt);
g->setNewCount(newCnt);
g->setFirstNewIndex(firstNew);
g->saveInfo();
knGlobals.groupManager()->unloadHeaders(g, true);
}
else
g->syncDynamicData();
conf->setLastExpireDate();
g->saveInfo();
leftCnt=g->count();
kdDebug(5003) << "KNCleanUp::expireGroup() : " << g->groupname() << ": "
<< delCnt << " deleted , " << leftCnt << " left" << endl;
if(showResult)
KMessageBox::information(knGlobals.topWidget,
i18n("<b>%1</b><br>expired: %2<br>left: %3").arg(g->groupname()).arg(delCnt).arg(leftCnt));
}
void KNCleanUp::compactFolder(KNFolder *f)
{
KNLocalArticle *art;
if (!f)
return;
QDir dir(f->path());
if(!dir.exists())
return;
f->setNotUnloadable(true);
if (!f->isLoaded() && !knGlobals.folderManager()->loadHeaders(f)) {
f->setNotUnloadable(false);
return;
}
f->closeFiles();
QFileInfo info(f->m_boxFile);
QString oldName=info.fileName();
QString newName=oldName+".new";
KNFile newMBoxFile(info.dirPath(true)+"/"+newName);
if( (f->m_boxFile.open(IO_ReadOnly)) && (newMBoxFile.open(IO_WriteOnly)) ) {
QTextStream ts(&newMBoxFile);
ts.setEncoding(QTextStream::Latin1);
for(int idx=0; idx<f->length(); idx++) {
art=f->at(idx);
if(f->m_boxFile.at(art->startOffset())) {
ts << "From aaa@aaa Mon Jan 01 00:00:00 1997\n";
art->setStartOffset(newMBoxFile.at());
while(f->m_boxFile.at() < (uint)art->endOffset())
ts << f->m_boxFile.readLineWnewLine();
art->setEndOffset(newMBoxFile.at());
newMBoxFile.putch('\n');
}
}
f->syncIndex(true);
newMBoxFile.close();
f->closeFiles();
dir.remove(oldName);
dir.rename(newName, oldName);
}
f->setNotUnloadable(false);
}
//===============================================================================================
KNCleanUp::ProgressDialog::ProgressDialog(int steps)
: QDialog(knGlobals.topWidget, 0, true)
{
const int w=400,
h=160;
p_rogress=0;
s_teps=steps;
setCaption(kapp->makeStdCaption(i18n("Cleaning Up")));
setFixedSize(w,h);
QFrame *top=new QFrame(this);
top->setGeometry(0,0, w,h);
QVBoxLayout *topL=new QVBoxLayout(top, 10);
QLabel *l=new QLabel(i18n("Cleaning up. Please wait..."), top);
topL->addWidget(l);
KSeparator *sep=new KSeparator(top);
topL->addWidget(sep);
m_sg=new QLabel(top);
topL->addWidget(m_sg);
p_bar=new QProgressBar(top);
topL->addWidget(p_bar);
p_bar->setTotalSteps(100*s_teps);
p_bar->setProgress(1);
if(knGlobals.topWidget->isVisible()) {
int x, y;
x=(knGlobals.topWidget->width()-w)/2;
y=(knGlobals.topWidget->height()-h)/2;
if(x<0 || y<0) {
x=0;
y=0;
}
x+=knGlobals.topWidget->x();
y+=knGlobals.topWidget->y();
move(x,y);
}
}
KNCleanUp::ProgressDialog::~ProgressDialog()
{
}
void KNCleanUp::ProgressDialog::showMessage(const QString &s)
{
m_sg->setText(s);
}
void KNCleanUp::ProgressDialog::doProgress()
{
p_rogress++;
p_bar->setProgress(p_rogress*100);
}
void KNCleanUp::ProgressDialog::closeEvent(QCloseEvent *)
{
// do nothing => prevent that the user closes the window
}
// kate: space-indent on; indent-width 2;