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tdeadmin/kpackage/cache.cpp

230 lines
5.5 KiB

/*
** Copyright (C) 1999,2000 Toivo Pedaste <toivo@ucs.uwa.edu.au>
**
*/
/*
** 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 in a file called COPYING; if not, write to
** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
** MA 02110-1301, USA.
*/
/*
** Bug reports and questions can be sent to kde-devel@kde.org
*/
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "kpackage.h"
#include "options.h"
#include "cache.h"
#include <klocale.h>
#include <kdebug.h>
extern Opts *opts;
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
cacheObj::cacheObj(const QString &Pbase, const QString &Plocation, const QString &PcacheFile,
const QString &Poption, bool Psubdirs)
{
base = Pbase;
location = Plocation;
cacheFile = PcacheFile;
option = Poption;
subdirs = Psubdirs;
}
cacheObj::~cacheObj()
{}
QString cacheObj::PDir()
{
struct stat buf;
stat(QFile::encodeName(QDir::homeDirPath()), &buf);
QString tmpd = opts->CacheDir ;
QDir d(tmpd);
if (!d.exists()) {
if (!d.mkdir(tmpd)) {
KpMsgE(i18n("Cannot create folder %1").arg(tmpd),TRUE);
tmpd = "";
} else {
chown(QFile::encodeName(tmpd),buf.st_uid,buf.st_gid);
}
}
return tmpd;
}
QString cacheObj::CDir()
{
QString tmpd = PDir();
if (!tmpd.isEmpty()) {
struct stat buf;
stat(QFile::encodeName(tmpd),&buf);
tmpd += "dir/";
QDir d(tmpd);
if (!d.exists()) {
if (!d.mkdir(tmpd)) {
KpMsgE(i18n("Cannot create folder %1").arg(tmpd),TRUE);
tmpd = "";
} else {
chown(QFile::encodeName(tmpd),buf.st_uid,buf.st_gid);
}
}
}
return tmpd;
}
int cacheObj::newDCache(const QString &url, const QString &fn, QString &fname) {
KURL u(url);
if ( !u.isValid() ) {
KpMsgE(i18n("Malformed URL: %1").arg(url),TRUE);
return -1;
}
QString tmpd = cacheObj::CDir();
if (tmpd.isEmpty()) {
return -1;
} else {
if (u.protocol() == "file") {
fname = u.path();
return 0;
}
fname = tmpd + fn;
if (opts->DCache == Opts::NEVER) {
return 1;
}
QFileInfo f(fname);
if (f.exists() && f.size() > 0) {
return 0;;
} else {
if (f.size() == 0)
rmDCache(fname);
return 1;
}
}
}
void cacheObj::rmDCache(const QString &fn) {
QString tmpd = cacheObj::CDir();
tmpd += fn;
if (!tmpd.isEmpty()) {
unlink(QFile::encodeName(tmpd));
}
}
void cacheObj::clearDCache() {
QString tmpd = cacheObj::CDir();
if (!tmpd.isEmpty()) {
QDir d(tmpd);
CacheList cl(d) ;
for (CacheList::iterator it = cl.begin() ; it != cl.end() ; ++it) {
QString s = tmpd;
s += *it;
unlink(QFile::encodeName(s));
}
unlink(QFile::encodeName(cl.getCLFileName())) ; // also delete the kpackage_cachelist file
}
}
void cacheObj::clearPCache() {
QString tmpd = cacheObj::PDir();
if (!tmpd.isEmpty()) {
QDir d(tmpd);
CacheList cl(d);
for (CacheList::iterator it = cl.begin() ; it != cl.end() ; ++it) {
QString s = tmpd ;
s += *it;
unlink(QFile::encodeName(s));
}
unlink(QFile::encodeName(cl.getCLFileName())) ; // also delete the kpackage_cachelist file
}
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
LcacheObj::LcacheObj()
{
setAutoDelete(TRUE);
}
LcacheObj::~LcacheObj()
{
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
CacheList::CacheList (const QDir& dir)
{
CLFile.setName (dir.path() + "/kpackage_cachelist") ;
read() ;
}
void CacheList::read ()
{
kdDebug() << "reading cachelist: " << CLFile.name() << "\n" ;
if (CLFile.open (IO_ReadOnly)) {
QTextStream stream (&CLFile) ;
QString line ;
while (!stream.eof()) {
line = stream.readLine() ;
if (line[0] != '#') { // not a comment
append (line) ; // to this QStringList
}
}
CLFile.close() ;
}
else {
// kdDebug() << "could not open cachelist " << CLFile.name() << "!\n" ;
}
}
void CacheList::write ()
{
kdDebug() << "writing cachelist: " << CLFile.name() << "\n" ;
if (CLFile.open (IO_WriteOnly)) {
QTextStream stream (&CLFile) ;
stream << "# This file contains a list of files that have been cached in this folder.\n" ;
stream << "# Please only delete this if you want kpackage to forget what it has cached.\n" ;
for (QStringList::iterator it = begin() ; it != end() ; ++it) {
stream << *it << "\n" ;
}
CLFile.close() ;
}
else {
kdDebug() << "could not open cachelist " << CLFile.name() << "!\n" ;
}
}
QString CacheList::getCLFileName () const
{
return CLFile.name() ;
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////