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# cupsddialog.cpp

    00001 /*
    00002  *  This file is part of the KDE libraries
    00003  *  Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
    00004  *
    00005  *  This library is free software; you can redistribute it and/or
    00006  *  modify it under the terms of the GNU Library General Public
    00007  *  License version 2 as published by the Free Software Foundation.
    00008  *
    00009  *  This library is distributed in the hope that it will be useful,
    00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012  *  Library General Public License for more details.
    00013  *
    00014  *  You should have received a copy of the GNU Library General Public License
    00015  *  along with this library; see the file COPYING.LIB.  If not, write to
    00016  *  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00017  *  Boston, MA 02111-1307, USA.
    00018  **/
    00019
    00020 #include "cupsddialog.h"
    00021
    00022 #include "cupsdpage.h"
    00023 #include "cupsdconf.h"
    00024 #include "cupsdsplash.h"
    00025 #include "cupsdserverpage.h"
    00026 #include "cupsdlogpage.h"
    00027 #include "cupsdjobspage.h"
    00028 #include "cupsdfilterpage.h"
    00029 #include "cupsddirpage.h"
    00030 #include "cupsdnetworkpage.h"
    00031 #include "cupsdbrowsingpage.h"
    00032 #include "cupsdsecuritypage.h"
    00033
    00034 #include <qdir.h>
    00035 #include <qvbox.h>
    00036 #include <kmessagebox.h>
    00037 #include <klocale.h>
    00038 #include <qfile.h>
    00039 #include <qfileinfo.h>
    00040 #include <kglobal.h>
    00041 #include <kiconloader.h>
    00042 #include <qstringlist.h>
    00043 #include <qwhatsthis.h>
    00044 #include <kio/passdlg.h>
    00045 #include <kguiitem.h>
    00046 #include <kprocess.h>
    00047
    00048 #include <signal.h>
    00049 #include <cups/cups.h>
    00050
    00051 static bool dynamically_loaded = false;
    00052 static QString  pass_string;
    00053
    00054 extern "C"
    00055 {
    00056 #include "cups-util.h"
    00057     KDEPRINT_EXPORT bool restartServer(QString& msg)
    00058     {
    00059         return CupsdDialog::restartServer(msg);
    00060     }
    00061     KDEPRINT_EXPORT bool configureServer(QWidget *parent, QString& msg)
    00062     {
    00063         dynamically_loaded = true;
    00064         bool result = CupsdDialog::configure(QString::null, parent, &msg);
    00065         dynamically_loaded = false;
    00066         return result;
    00067     }
    00068 }
    00069
    00070 int getServerPid()
    00071 {
    00072     QDir    dir("/proc",QString::null,QDir::Name,QDir::Dirs);
    00073     for (uint i=0;i<dir.count();i++)
    00074     {
    00075         if (dir[i] == "." || dir[i] == ".." || dir[i] == "self") continue;
    00076         QFile   f("/proc/" + dir[i] + "/cmdline");
    00077         if (f.exists() && f.open(IO_ReadOnly))
    00078         {
    00079             QTextStream t(&f);
    00080             QString line;
    00081             t >> line;
    00082             f.close();
    00083             if (line.right(5) == "cupsd" ||
    00084                 line.right(6).left(5) == "cupsd")   // second condition for 2.4.x kernels
    00085                                 // which add a null byte at the end
    00086                 return dir[i].toInt();
    00087         }
    00088     }
    00089     return (-1);
    00090 }
    00091
    00092 const char* getPassword(const char*)
    00093 {
    00094     QString user(cupsUser());
    00095     QString pass;
    00096
    00097     if (KIO::PasswordDialog::getNameAndPassword(user, pass, NULL) == QDialog::Accepted)
    00098     {
    00099         cupsSetUser(user.latin1());
    00100         pass_string = pass;
    00101         if (pass_string.isEmpty())
    00102             return "";
    00103         else
    00104             return pass_string.latin1();
    00105     }
    00106     else
    00107         return NULL;
    00108 }
    00109
    00110 //---------------------------------------------------
    00111
    00112 CupsdDialog::CupsdDialog(QWidget *parent, const char *name)
    00113     : KDialogBase(IconList, "", Ok|Cancel|User1, Ok, parent, name, true, true, KGuiItem(i18n("Short Help"), "help"))
    00114 {
    00115     KGlobal::iconLoader()->addAppDir("kdeprint");
    00116     KGlobal::locale()->insertCatalogue("cupsdconf");
    00117
    00118     setShowIconsInTreeList(true);
    00119     setRootIsDecorated(false);
    00120
    00121     pagelist_.setAutoDelete(false);
    00122     filename_ = "";
    00123     conf_ = 0;
    00124     constructDialog();
    00125
    00126         setCaption(i18n("CUPS Server Configuration"));
    00127
    00128         //resize(500, 400);
    00129 }
    00130
    00131 CupsdDialog::~CupsdDialog()
    00132 {
    00133         delete conf_;
    00134 }
    00135
    00136 void CupsdDialog::addConfPage(CupsdPage *page)
    00137 {
    00138     QPixmap icon = KGlobal::instance()->iconLoader()->loadIcon(
    00139                                                                page->pixmap(),
    00140                                                                    KIcon::NoGroup,
    00141                                                                    KIcon::SizeMedium
    00142                                                               );
    00143
    00144     QVBox   *box = addVBoxPage(page->pageLabel(), page->header(), icon);
    00145     page->reparent(box, QPoint(0,0));
    00146     pagelist_.append(page);
    00147 }
    00148
    00149 void CupsdDialog::constructDialog()
    00150 {
    00151     addConfPage(new CupsdSplash(0));
    00152     addConfPage(new CupsdServerPage(0));
    00153     addConfPage(new CupsdNetworkPage(0));
    00154     addConfPage(new CupsdSecurityPage(0));
    00155     addConfPage(new CupsdLogPage(0));
    00156     addConfPage(new CupsdJobsPage(0));
    00157     addConfPage(new CupsdFilterPage(0));
    00158     addConfPage(new CupsdDirPage(0));
    00159     addConfPage(new CupsdBrowsingPage(0));
    00160
    00161     conf_ = new CupsdConf();
    00162     for (pagelist_.first();pagelist_.current();pagelist_.next())
    00163         {
    00164                 pagelist_.current()->setInfos(conf_);
    00165         }
    00166 }
    00167
    00168 bool CupsdDialog::setConfigFile(const QString& filename)
    00169 {
    00170     filename_ = filename;
    00171     if (!conf_->loadFromFile(filename_))
    00172     {
    00173         KMessageBox::error(this, i18n("Error while loading configuration file!"), i18n("CUPS Configuration Error"));
    00174         return false;
    00175     }
    00176     if (conf_->unknown_.count() > 0)
    00177     {
    00178         // there were some unknown options, warn the user
    00179         QString msg;
    00180         for (QValueList< QPair<QString,QString> >::ConstIterator it=conf_->unknown_.begin(); it!=conf_->unknown_.end(); ++it)
    00181             msg += ((*it).first + " = " + (*it).second + "<br>");
    00182         msg.prepend("<p>" + i18n("Some options were not recognized by this configuration tool. "
    00183                                   "They will be left untouched and you won't be able to change them.") + "</p>");
    00184         KMessageBox::sorry(this, msg, i18n("Unrecognized Options"));
    00185     }
    00186     bool    ok(true);
    00187     QString msg;
    00188     for (pagelist_.first();pagelist_.current() && ok;pagelist_.next())
    00189         ok = pagelist_.current()->loadConfig(conf_, msg);
    00190     if (!ok)
    00191     {
    00192         KMessageBox::error(this, msg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
    00193         return false;
    00194     }
    00195     return true;
    00196 }
    00197
    00198 bool CupsdDialog::restartServer(QString& msg)
    00199 {
    00200     int serverPid = getServerPid();
    00201         msg.truncate(0);
    00202     if (serverPid <= 0)
    00203     {
    00204         msg = i18n("Unable to find a running CUPS server");
    00205     }
    00206     else
    00207     {
    00208                 bool success = false;
    00209                 if (getuid() == 0 )
    00210                         success = (::kill(serverPid, SIGHUP) == 0);
    00211                 else
    00212                 {
    00213                         KProcess proc;
    00214                         proc << "kdesu" << "-c" << "kill -SIGHUP " + QString::number( serverPid );
    00215                         success = proc.start( KProcess::Block ) && proc.normalExit();
    00216                 }
    00217                 if( !success )
    00218             msg = i18n("Unable to restart CUPS server (pid = %1)").arg(serverPid);
    00219     }
    00220         return (msg.isEmpty());
    00221 }
    00222
    00223 bool CupsdDialog::configure(const QString& filename, QWidget *parent, QString *msg)
    00224 {
    00225     bool needUpload(false);
    00226     QString errormsg;
    00227     bool result = true;
    00228
    00229     // init password dialog if needed
    00230     if (!dynamically_loaded)
    00231         cupsSetPasswordCB(getPassword);
    00232
    00233     // load config file from server
    00234     QString fn(filename);
    00235     if (fn.isEmpty())
    00236     {
    00237         fn = cupsGetConf();
    00238         if (fn.isEmpty())
    00239             errormsg = i18n("Unable to retrieve configuration file from the CUPS server. "
    00240                         "You probably don't have the access permissions to perform this operation.");
    00241         else needUpload = true;
    00242     }
    00243
    00244     // check read state (only if needed)
    00245     if (!fn.isEmpty())
    00246     {
    00247         QFileInfo   fi(fn);
    00248         if (!fi.exists() || !fi.isReadable() || !fi.isWritable())
    00249             errormsg = i18n("Internal error: file '%1' not readable/writable!").arg(fn);
    00250         // check file size
    00251         if (fi.size() == 0)
    00252             errormsg = i18n("Internal error: empty file '%1'!").arg(fn);
    00253     }
    00254
    00255     if (!errormsg.isEmpty())
    00256     {
    00257         if ( !dynamically_loaded )
    00258             KMessageBox::error(parent, errormsg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
    00259         result = false;
    00260     }
    00261     else
    00262     {
    00263         KGlobal::locale()->insertCatalogue("cupsdconf"); // Must be before dialog is created to translate "Short Help"
    00264         CupsdDialog dlg(parent);
    00265         if (dlg.setConfigFile(fn) && dlg.exec())
    00266         {
    00267             QCString    encodedFn = QFile::encodeName(fn);
    00268             if (!needUpload)
    00269                 KMessageBox::information(parent,
    00270                     i18n("The config file has not been uploaded to the "
    00271                          "CUPS server. The daemon will not be restarted."));
    00272             else if (!cupsPutConf(encodedFn.data()))
    00273             {
    00274                 errormsg = i18n("Unable to upload the configuration file to CUPS server. "
    00275                          "You probably don't have the access permissions to perform this operation.");
    00276                 if ( !dynamically_loaded )
    00277                     KMessageBox::error(parent, errormsg, i18n("CUPS configuration error"));
    00278                 result = false;
    00279             }
    00280         }
    00281
    00282     }
    00283     if (needUpload)
    00284         QFile::remove(fn);
    00285
    00286     if ( msg )
    00287         *msg = errormsg;
    00288     return result;
    00289 }
    00290
    00291 void CupsdDialog::slotOk()
    00292 {
    00293     if (conf_ && !filename_.isEmpty())
    00294     { // try to save the file
    00295         bool    ok(true);
    00296         QString msg;
    00297         CupsdConf   newconf_;
    00298         for (pagelist_.first();pagelist_.current() && ok;pagelist_.next())
    00299             ok = pagelist_.current()->saveConfig(&newconf_, msg);
    00300         // copy unknown options
    00301         newconf_.unknown_ = conf_->unknown_;
    00302         if (!ok)
    00303         {
    00304             ; // do nothing
    00305         }
    00306         else if (!newconf_.saveToFile(filename_))
    00307         {
    00308             msg = i18n("Unable to write configuration file %1").arg(filename_);
    00309                 ok = false;
    00310         }
    00311         if (!ok)
    00312         {
    00313             KMessageBox::error(this, msg.prepend("<qt>").append("</qt>"), i18n("CUPS Configuration Error"));
    00314         }
    00315         else
    00316             KDialogBase::slotOk();
    00317     }
    00318 }
    00319
    00320 void CupsdDialog::slotUser1()
    00321 {
    00322     QWhatsThis::enterWhatsThisMode();
    00323 }
    00324
    00325 int CupsdDialog::serverPid()
    00326 {
    00327     return getServerPid();
    00328 }
    00329
    00330 int CupsdDialog::serverOwner()
    00331 {
    00332     int pid = getServerPid();
    00333     if (pid > 0)
    00334     {
    00335         QString str;
    00336         str.sprintf("/proc/%d/status",pid);
    00337         QFile   f(str);
    00338         if (f.exists() && f.open(IO_ReadOnly))
    00339         {
    00340             QTextStream t(&f);
    00341             while (!t.eof())
    00342             {
    00343                 str = t.readLine();
    00344                 if (str.find("Uid:",0,false) == 0)
    00345                 {
    00346                     QStringList list = QStringList::split('\t', str, false);
    00347                     if (list.count() >= 2)
    00348                     {
    00349                         bool    ok;
    00350                         int u = list[1].toInt(&ok);
    00351                         if (ok) return u;
    00352                     }
    00353                 }
    00354             }
    00355         }
    00356     }
    00357     return (-1);
    00358 }
    00359
    00360 #include "cupsddialog.moc"

This file is part of the documentation for kdeprint Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Sat Jun 11 20:31:00 2005 by doxygen 1.4.1 written by Dimitri van Heesch, © 1997-2003