cupsddialog.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.
**/
#include "cupsddialog.h"
#include "cupsdpage.h"
#include "cupsdconf.h"
#include "cupsdsplash.h"
#include "cupsdserverpage.h"
#include "cupsdlogpage.h"
#include "cupsdjobspage.h"
#include "cupsdfilterpage.h"
#include "cupsddirpage.h"
#include "cupsdnetworkpage.h"
#include "cupsdbrowsingpage.h"
#include "cupsdsecuritypage.h"
#include <qdir.h>
#include <qvbox.h>
#include <kmessagebox.h>
#include <klocale.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <qstringlist.h>
#include <qwhatsthis.h>
#include <kio/passdlg.h>
#include <kguiitem.h>
#include <kprocess.h>
#include <signal.h>
#include <cups/cups.h>
static bool dynamically_loaded = false;
static QString pass_string;
extern "C"
{
#include "cups-util.h"
KDEPRINT_EXPORT bool restartServer(QString& msg)
{
return CupsdDialog::restartServer(msg);
}
KDEPRINT_EXPORT bool configureServer(QWidget *parent, QString& msg)
{
dynamically_loaded = true;
bool result = CupsdDialog::configure(QString::null, parent, &msg);
dynamically_loaded = false;
return result;
}
}
int getServerPid()
{
QDir dir("/proc",QString::null,QDir::Name,QDir::Dirs);
for (uint i=0;i<dir.count();i++)
{
if (dir[i] == "." || dir[i] == ".." || dir[i] == "self") continue;
QFile f("/proc/" + dir[i] + "/cmdline");
if (f.exists() && f.open(IO_ReadOnly))
{
QTextStream t(&f);
QString line;
t >> line;
f.close();
if (line.right(5) == "cupsd" ||
line.right(6).left(5) == "cupsd") // second condition for 2.4.x kernels
// which add a null byte at the end
return dir[i].toInt();
}
}
return (-1);
}
const char* getPassword(const char*)
{
QString user(cupsUser());
QString pass;
if (KIO::PasswordDialog::getNameAndPassword(user, pass, NULL) == QDialog::Accepted)
{
cupsSetUser(user.latin1());
pass_string = pass;
if (pass_string.isEmpty())
return "";
else
return pass_string.latin1();
}
else
return NULL;
}
//---------------------------------------------------
CupsdDialog::CupsdDialog(QWidget *parent, const char *name)
: KDialogBase(IconList, "", Ok|Cancel|User1, Ok, parent, name, true, true, KGuiItem(i18n("Short Help"), "help"))
{
KGlobal::iconLoader()->addAppDir("kdeprint");
KGlobal::locale()->insertCatalogue("cupsdconf");
setShowIconsInTreeList(true);
setRootIsDecorated(false);
pagelist_.setAutoDelete(false);
filename_ = "";
conf_ = 0;
constructDialog();
setCaption(i18n("CUPS Server Configuration"));
//resize(500, 400);
}
CupsdDialog::~CupsdDialog()
{
delete conf_;
}
void CupsdDialog::addConfPage(CupsdPage *page)
{
QPixmap icon = KGlobal::instance()->iconLoader()->loadIcon(
page->pixmap(),
KIcon::NoGroup,
KIcon::SizeMedium
);
QVBox *box = addVBoxPage(page->pageLabel(), page->header(), icon);
page->reparent(box, QPoint(0,0));
pagelist_.append(page);
}
void CupsdDialog::constructDialog()
{
addConfPage(new CupsdSplash(0));
addConfPage(new CupsdServerPage(0));
addConfPage(new CupsdNetworkPage(0));
addConfPage(new CupsdSecurityPage(0));
addConfPage(new CupsdLogPage(0));
addConfPage(new CupsdJobsPage(0));
addConfPage(new CupsdFilterPage(0));
addConfPage(new CupsdDirPage(0));
addConfPage(new CupsdBrowsingPage(0));
conf_ = new CupsdConf();
for (pagelist_.first();pagelist_.current();pagelist_.next())
{
pagelist_.current()->setInfos(conf_);
}
}
bool CupsdDialog::setConfigFile(const QString& filename)
{
filename_ = filename;
if (!conf_->loadFromFile(filename_))
{
KMessageBox::error(this, i18n("Error while loading configuration file!"), i18n("CUPS Configuration Error"));
return false;
}
if (conf_->unknown_.count() > 0)
{
// there were some unknown options, warn the user
QString msg;
for (QValueList< QPair<QString,QString> >::ConstIterator it=conf_->unknown_.begin(); it!=conf_->unknown_.end(); ++it)
msg += ((*it).first + " = " + (*it).second + "<br>");
msg.prepend("<p>" + i18n("Some options were not recognized by this configuration tool. "
"They will be left untouched and you won't be able to change them.") + "</p>");
KMessageBox::sorry(this, msg, i18n("Unrecognized Options"));
}
bool ok(true);
QString msg;
for (pagelist_.first();pagelist_.current() && ok;pagelist_.next())
ok = pagelist_.current()->loadConfig(conf_, msg);
if (!ok)
{
KMessageBox::error(this, msg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
return false;
}
return true;
}
bool CupsdDialog::restartServer(QString& msg)
{
int serverPid = getServerPid();
msg.truncate(0);
if (serverPid <= 0)
{
msg = i18n("Unable to find a running CUPS server");
}
else
{
bool success = false;
if (getuid() == 0 )
success = (::kill(serverPid, SIGHUP) == 0);
else
{
KProcess proc;
proc << "kdesu" << "-c" << "kill -SIGHUP " + QString::number( serverPid );
success = proc.start( KProcess::Block ) && proc.normalExit();
}
if( !success )
msg = i18n("Unable to restart CUPS server (pid = %1)").arg(serverPid);
}
return (msg.isEmpty());
}
bool CupsdDialog::configure(const QString& filename, QWidget *parent, QString *msg)
{
bool needUpload(false);
QString errormsg;
bool result = true;
// init password dialog if needed
if (!dynamically_loaded)
cupsSetPasswordCB(getPassword);
// load config file from server
QString fn(filename);
if (fn.isEmpty())
{
fn = cupsGetConf();
if (fn.isEmpty())
errormsg = i18n("Unable to retrieve configuration file from the CUPS server. "
"You probably don't have the access permissions to perform this operation.");
else needUpload = true;
}
// check read state (only if needed)
if (!fn.isEmpty())
{
QFileInfo fi(fn);
if (!fi.exists() || !fi.isReadable() || !fi.isWritable())
errormsg = i18n("Internal error: file '%1' not readable/writable!").arg(fn);
// check file size
if (fi.size() == 0)
errormsg = i18n("Internal error: empty file '%1'!").arg(fn);
}
if (!errormsg.isEmpty())
{
if ( !dynamically_loaded )
KMessageBox::error(parent, errormsg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
result = false;
}
else
{
KGlobal::locale()->insertCatalogue("cupsdconf"); // Must be before dialog is created to translate "Short Help"
CupsdDialog dlg(parent);
if (dlg.setConfigFile(fn) && dlg.exec())
{
QCString encodedFn = QFile::encodeName(fn);
if (!needUpload)
KMessageBox::information(parent,
i18n("The config file has not been uploaded to the "
"CUPS server. The daemon will not be restarted."));
else if (!cupsPutConf(encodedFn.data()))
{
errormsg = i18n("Unable to upload the configuration file to CUPS server. "
"You probably don't have the access permissions to perform this operation.");
if ( !dynamically_loaded )
KMessageBox::error(parent, errormsg, i18n("CUPS configuration error"));
result = false;
}
}
}
if (needUpload)
QFile::remove(fn);
if ( msg )
*msg = errormsg;
return result;
}
void CupsdDialog::slotOk()
{
if (conf_ && !filename_.isEmpty())
{ // try to save the file
bool ok(true);
QString msg;
CupsdConf newconf_;
for (pagelist_.first();pagelist_.current() && ok;pagelist_.next())
ok = pagelist_.current()->saveConfig(&newconf_, msg);
// copy unknown options
newconf_.unknown_ = conf_->unknown_;
if (!ok)
{
; // do nothing
}
else if (!newconf_.saveToFile(filename_))
{
msg = i18n("Unable to write configuration file %1").arg(filename_);
ok = false;
}
if (!ok)
{
KMessageBox::error(this, msg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
}
else
KDialogBase::slotOk();
}
}
void CupsdDialog::slotUser1()
{
QWhatsThis::enterWhatsThisMode();
}
int CupsdDialog::serverPid()
{
return getServerPid();
}
int CupsdDialog::serverOwner()
{
int pid = getServerPid();
if (pid > 0)
{
QString str;
str.sprintf("/proc/%d/status",pid);
QFile f(str);
if (f.exists() && f.open(IO_ReadOnly))
{
QTextStream t(&f);
while (!t.eof())
{
str = t.readLine();
if (str.find("Uid:",0,false) == 0)
{
QStringList list = QStringList::split('\t', str, false);
if (list.count() >= 2)
{
bool ok;
int u = list[1].toInt(&ok);
if (ok) return u;
}
}
}
}
}
return (-1);
}
#include "cupsddialog.moc"

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