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/* This file is part of the KDE project
Copyright (c) 2004 Jan Schaefer <j_schaef@informatik.uni-kl.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
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 <tqdict.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include <kdirwatch.h>
#include <kstaticdeleter.h>
#include <kdebug.h>
#include <tdeconfig.h>
#include "knfsshare.h"
class KNFSSharePrivate
{
public:
KNFSSharePrivate();
bool readExportsFile();
bool findExportsFile();
TQDict<bool> sharedPaths;
TQString exportsFile;
};
KNFSSharePrivate::KNFSSharePrivate()
{
if (findExportsFile())
readExportsFile();
}
/**
* Try to find the nfs config file path
* First tries the tdeconfig, then checks
* several well-known paths
* @return wether an 'exports' file was found.
**/
bool KNFSSharePrivate::findExportsFile() {
TDEConfig config("knfsshare");
config.setGroup("General");
exportsFile = config.readPathEntry("exportsFile");
if ( TQFile::exists(exportsFile) )
return true;
if ( TQFile::exists("/etc/exports") )
exportsFile = "/etc/exports";
else {
kdDebug(7000) << "KNFSShare: Could not found exports file!" << endl;
return false;
}
config.writeEntry("exportsFile",exportsFile);
return true;
}
/**
* Reads all paths from the exports file
* and fills the sharedPaths dict with the values
*/
bool KNFSSharePrivate::readExportsFile() {
TQFile f(exportsFile);
kdDebug(7000) << "KNFSShare::readExportsFile " << exportsFile << endl;
if (!f.open(IO_ReadOnly)) {
kdError() << "KNFSShare: Could not open " << exportsFile << endl;
return false;
}
sharedPaths.clear();
TQTextStream s( &f );
bool continuedLine = false; // is true if the line before ended with a backslash
TQString completeLine;
while ( !s.eof() )
{
TQString currentLine = s.readLine().stripWhiteSpace();
if (continuedLine) {
completeLine += currentLine;
continuedLine = false;
}
else
completeLine = currentLine;
// is the line continued in the next line ?
if ( completeLine[completeLine.length()-1] == '\\' )
{
continuedLine = true;
// remove the ending backslash
completeLine.truncate( completeLine.length()-1 );
continue;
}
// comments or empty lines
if (completeLine.isEmpty() ||
'#' == completeLine[0])
{
continue;
}
TQString path;
// Handle quotation marks
if ( completeLine[0] == '"' ) {
int i = completeLine.find('"',1);
if (i == -1) {
kdError() << "KNFSShare: Parse error: Missing quotation mark: " << completeLine << endl;
continue;
}
path = completeLine.mid(1,i-1);
} else { // no quotation marks
int i = completeLine.find(' ');
if (i == -1)
i = completeLine.find('\t');
if (i == -1)
path = completeLine;
else
path = completeLine.left(i);
}
kdDebug(7000) << "KNFSShare: Found path: " << path << endl;
// normalize path
if ( path[path.length()-1] != '/' )
path += '/';
bool b = true;
sharedPaths.insert(path,&b);
}
f.close();
return true;
}
KNFSShare::KNFSShare() {
d = new KNFSSharePrivate();
if (TQFile::exists(d->exportsFile)) {
KDirWatch::self()->addFile(d->exportsFile);
connect(KDirWatch::self(), TQT_SIGNAL(dirty (const TQString&)),this,
TQT_SLOT(slotFileChange(const TQString&)));
}
}
KNFSShare::~KNFSShare() {
if (TQFile::exists(d->exportsFile)) {
KDirWatch::self()->removeFile(d->exportsFile);
}
delete d;
}
bool KNFSShare::isDirectoryShared( const TQString & path ) const {
TQString fixedPath = path;
if ( path[path.length()-1] != '/' )
fixedPath += '/';
return d->sharedPaths.find(fixedPath) != 0;
}
TQStringList KNFSShare::sharedDirectories() const {
TQStringList result;
TQDictIterator<bool> it(d->sharedPaths);
for( ; it.current(); ++it )
result << it.currentKey();
return result;
}
TQString KNFSShare::exportsPath() const {
return d->exportsFile;
}
void KNFSShare::slotFileChange( const TQString & path ) {
if (path == d->exportsFile)
d->readExportsFile();
emit changed();
}
KNFSShare* KNFSShare::_instance = 0L;
static KStaticDeleter<KNFSShare> ksdNFSShare;
KNFSShare* KNFSShare::instance() {
if (! _instance )
_instance = ksdNFSShare.setObject(_instance, new KNFSShare());
return _instance;
}
#include "knfsshare.moc"
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