kdeprintcheck.cpp
/*
* This file is part of the KDE libraries
* Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
*
* 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.
**/
/*
* Implementation of simple checking mechanism. Rules are defined in
* the form of an URI. Available syntax is:
* - exec:/<execname> -> check for an executable in
* $PATH variable.
* - config:/path/to/file -> check for the existence of a file
* or directory in KDE or standard
* UNIX config locations
* - file:/path/to/file
* - dir:/path/to/dir -> simply check the existence of the
* a file or directory
* - service:/serv -> try to connect to a port on the
* specified host (usually localhost)
* "serv" can be a port value or service name
*
* TO BE IMPLEMENTED:
* - run:/<execname> -> check for a running executable
*/
#include "kdeprintcheck.h"
#include <kstandarddirs.h>
#include <kdebug.h>
#include <kextsock.h>
#include <qfile.h>
#include <unistd.h>
static const char* const config_stddirs[] = {
"/etc/",
"/usr/etc/",
"/usr/local/etc/",
"/opt/etc/",
"/opt/local/etc/",
0
};
bool KdeprintChecker::check(KConfig *conf, const QString& group)
{
if (!group.isEmpty())
conf->setGroup(group);
QStringList uris = conf->readListEntry("Require");
return check(uris);
}
bool KdeprintChecker::check(const QStringList& uris)
{
bool state(true);
for (QStringList::ConstIterator it=uris.begin(); it!=uris.end() && state; ++it)
{
state = (state && checkURL(KURL(*it)));
// kdDebug( 500 ) << "auto-detection uri=" << *it << ", state=" << state << endl;
}
return state;
}
bool KdeprintChecker::checkURL(const KURL& url)
{
QString prot(url.protocol());
if (prot == "config")
return checkConfig(url);
else if (prot == "exec")
return checkExec(url);
else if (prot == "file" || prot == "dir")
return KStandardDirs::exists(url.url());
else if (prot == "service")
return checkService(url);
return false;
}
bool KdeprintChecker::checkConfig(const KURL& url)
{
// get the config filename (may contain a path)
QString f(url.path().mid(1));
bool state(false);
// first check for standard KDE config file
if (!locate("config",f).isEmpty())
state = true;
else
// otherwise check in standard UNIX config directories
{
const char* const *p = config_stddirs;
while (*p)
{
// kdDebug( 500 ) << "checkConfig() with " << QString::fromLatin1( *p ) + f << endl;
if ( QFile::exists( QString::fromLatin1( *p ) + f ) )
{
state = true;
break;
}
else
p++;
}
}
return state;
}
bool KdeprintChecker::checkExec(const KURL& url)
{
QString execname(url.path().mid(1));
return !(KStandardDirs::findExe(execname).isEmpty());
}
bool KdeprintChecker::checkService(const KURL& url)
{
QString serv(url.path().mid(1));
KExtendedSocket sock;
bool ok;
int port = serv.toInt(&ok);
if (ok) sock.setAddress("localhost", port);
else sock.setAddress("localhost", serv);
return (sock.connect() == 0);
}

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