libkcal

scheduler.cpp

00001 /*
00002     This file is part of libkcal.
00003 
00004     Copyright (c) 2001,2004 Cornelius Schumacher <schumacher@kde.org>
00005     Copyright (C) 2004 Reinhold Kainhofer <reinhold@kainhofer.com>
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #include <klocale.h>
00024 #include <kdebug.h>
00025 #include <kmessagebox.h>
00026 #include <kstandarddirs.h>
00027 
00028 #include "calhelper.h"
00029 #include "event.h"
00030 #include "todo.h"
00031 #include "freebusy.h"
00032 #include "icalformat.h"
00033 #include "calendar.h"
00034 #include "calendarresources.h"
00035 #include "freebusycache.h"
00036 #include "assignmentvisitor.h"
00037 
00038 #include "scheduler.h"
00039 
00040 using namespace KCal;
00041 
00042 ScheduleMessage::ScheduleMessage(IncidenceBase *incidence,int method,ScheduleMessage::Status status)
00043 {
00044   mIncidence = incidence;
00045   mMethod = method;
00046   mStatus = status;
00047 }
00048 
00049 QString ScheduleMessage::statusName(ScheduleMessage::Status status)
00050 {
00051   switch (status) {
00052     case PublishUpdate:
00053       return i18n("Updated Publish");
00054     case PublishNew:
00055       return i18n("Publish");
00056     case Obsolete:
00057       return i18n("Obsolete");
00058     case RequestNew:
00059       return i18n("New Request");
00060     case RequestUpdate:
00061       return i18n("Updated Request");
00062     default:
00063       return i18n("Unknown Status: %1").arg(QString::number(status));
00064   }
00065 }
00066 
00067 struct Scheduler::Private
00068 {
00069   Private() : mFreeBusyCache( 0 ) {}
00070 
00071   FreeBusyCache *mFreeBusyCache;
00072 };
00073 
00074 Scheduler::Scheduler(Calendar *calendar)
00075 {
00076   mCalendar = calendar;
00077   mFormat = new ICalFormat();
00078   mFormat->setTimeZone( calendar->timeZoneId(), !calendar->isLocalTime() );
00079 
00080   d = new Private;
00081 }
00082 
00083 Scheduler::~Scheduler()
00084 {
00085   delete d;
00086 
00087   delete mFormat;
00088 }
00089 
00090 void Scheduler::setFreeBusyCache( FreeBusyCache *c )
00091 {
00092   d->mFreeBusyCache = c;
00093 }
00094 
00095 FreeBusyCache *Scheduler::freeBusyCache() const
00096 {
00097   return d->mFreeBusyCache;
00098 }
00099 
00100 bool Scheduler::acceptTransaction( IncidenceBase *incidence,
00101                                    Method method,
00102                                    ScheduleMessage::Status status,
00103                                    const QString &attendee )
00104 {
00105   kdDebug(5800) << "Scheduler::acceptTransaction, method="
00106                 << methodName( method ) << endl;
00107 
00108   switch (method) {
00109     case Publish:
00110       return acceptPublish(incidence, status, method);
00111     case Request:
00112       return acceptRequest( incidence, status, attendee );
00113     case Add:
00114       return acceptAdd(incidence, status);
00115     case Cancel:
00116       return acceptCancel(incidence, status,  attendee );
00117     case Declinecounter:
00118       return acceptDeclineCounter(incidence, status);
00119     case Reply:
00120       return acceptReply(incidence, status, method);
00121     case Refresh:
00122       return acceptRefresh(incidence, status);
00123     case Counter:
00124       return acceptCounter(incidence, status);
00125     default:
00126       break;
00127   }
00128   deleteTransaction(incidence);
00129   return false;
00130 }
00131 
00132 QString Scheduler::methodName(Method method)
00133 {
00134   switch (method) {
00135     case Publish:
00136       return QString::fromLatin1("Publish");
00137     case Request:
00138       return QString::fromLatin1("Request");
00139     case Refresh:
00140       return QString::fromLatin1("Refresh");
00141     case Cancel:
00142       return QString::fromLatin1("Cancel");
00143     case Add:
00144       return QString::fromLatin1("Add");
00145     case Reply:
00146       return QString::fromLatin1("Reply");
00147     case Counter:
00148       return QString::fromLatin1("Counter");
00149     case Declinecounter:
00150       return QString::fromLatin1("Decline Counter");
00151     default:
00152       return QString::fromLatin1("Unknown");
00153   }
00154 }
00155 
00156 QString Scheduler::translatedMethodName(Method method)
00157 {
00158   switch (method) {
00159     case Publish:
00160       return i18n("Publish");
00161     case Request:
00162       return i18n("Request");
00163     case Refresh:
00164       return i18n("Refresh");
00165     case Cancel:
00166       return i18n("Cancel");
00167     case Add:
00168       return i18n("Add");
00169     case Reply:
00170       return i18n("Reply");
00171     case Counter:
00172       return i18n("counter proposal","Counter");
00173     case Declinecounter:
00174       return i18n("decline counter proposal","Decline Counter");
00175     default:
00176       return i18n("Unknown");
00177   }
00178 }
00179 
00180 bool Scheduler::deleteTransaction(IncidenceBase *)
00181 {
00182   return true;
00183 }
00184 
00185 bool Scheduler::acceptPublish( IncidenceBase *newIncBase,
00186                                ScheduleMessage::Status status, Method method )
00187 {
00188   if( newIncBase->type() == "FreeBusy" ) {
00189     return acceptFreeBusy( newIncBase, method );
00190   }
00191 
00192   bool res = false;
00193   kdDebug(5800) << "Scheduler::acceptPublish, status="
00194                 << ScheduleMessage::statusName( status ) << endl;
00195   Incidence *newInc = static_cast<Incidence *>( newIncBase );
00196   Incidence *calInc = mCalendar->incidence( newIncBase->uid() );
00197   switch ( status ) {
00198     case ScheduleMessage::Unknown:
00199     case ScheduleMessage::PublishNew:
00200     case ScheduleMessage::PublishUpdate:
00201       if ( calInc && newInc ) {
00202         if ( (newInc->revision() > calInc->revision()) ||
00203              (newInc->revision() == calInc->revision() &&
00204                newInc->lastModified() > calInc->lastModified() ) ) {
00205           AssignmentVisitor visitor;
00206           const QString oldUid = calInc->uid();
00207           if ( !visitor.assign( calInc, newInc ) ) {
00208             kdError(5800) << "assigning different incidence types" << endl;
00209           } else {
00210             calInc->setUid( oldUid );
00211             calInc->setSchedulingID( newInc->uid() );
00212             res = true;
00213           }
00214         }
00215       }
00216       break;
00217     case ScheduleMessage::Obsolete:
00218       res = true;
00219       break;
00220     default:
00221       break;
00222   }
00223   deleteTransaction( newIncBase );
00224   return res;
00225 }
00226 
00227 bool Scheduler::acceptRequest( IncidenceBase *incidence,
00228                                ScheduleMessage::Status status,
00229                                const QString &attendee )
00230 {
00231   Incidence *inc = static_cast<Incidence *>(incidence);
00232   if ( !inc )
00233     return false;
00234   if (inc->type()=="FreeBusy") {
00235     // reply to this request is handled in korganizer's incomingdialog
00236     return true;
00237   }
00238 
00239   const Incidence::List existingIncidences = mCalendar->incidencesFromSchedulingID( inc->uid() );
00240   kdDebug(5800) << "Scheduler::acceptRequest status=" << ScheduleMessage::statusName( status ) << ": found " << existingIncidences.count() << " incidences with schedulingID " << inc->schedulingID() << endl;
00241   Incidence::List::ConstIterator incit = existingIncidences.begin();
00242   for ( ; incit != existingIncidences.end() ; ++incit ) {
00243     Incidence* const i = *incit;
00244     kdDebug(5800) << "Considering this found event ("
00245                   << ( i->isReadOnly() ? "readonly" : "readwrite" )
00246                   << ") :" << mFormat->toString( i ) << endl;
00247     // If it's readonly, we can't possible update it.
00248     if ( i->isReadOnly() )
00249       continue;
00250     if ( i->revision() <= inc->revision() ) {
00251       // The new incidence might be an update for the found one
00252       bool isUpdate = true;
00253       // Code for new invitations:
00254       // If you think we could check the value of "status" to be RequestNew: we can't.
00255       // It comes from a similar check inside libical, where the event is compared to
00256       // other events in the calendar. But if we have another version of the event around
00257       // (e.g. shared folder for a group), the status could be RequestNew, Obsolete or Updated.
00258       kdDebug(5800) << "looking in " << i->uid() << "'s attendees" << endl;
00259       // This is supposed to be a new request, not an update - however we want to update
00260       // the existing one to handle the "clicking more than once on the invitation" case.
00261       // So check the attendee status of the attendee.
00262       const KCal::Attendee::List attendees = i->attendees();
00263       KCal::Attendee::List::ConstIterator ait;
00264       for ( ait = attendees.begin(); ait != attendees.end(); ++ait ) {
00265         if( (*ait)->email() == attendee && (*ait)->status() == Attendee::NeedsAction ) {
00266           // This incidence wasn't created by me - it's probably in a shared folder
00267           // and meant for someone else, ignore it.
00268           kdDebug(5800) << "ignoring " << i->uid() << " since I'm still NeedsAction there" << endl;
00269           isUpdate = false;
00270           break;
00271         }
00272       }
00273       if ( isUpdate ) {
00274         if ( i->revision() == inc->revision() &&
00275              i->lastModified() > inc->lastModified() ) {
00276           // This isn't an update - the found incidence was modified more recently
00277           kdDebug(5800) << "This isn't an update - the found incidence was modified more recently" << endl;
00278           deleteTransaction(incidence);
00279           return false;
00280         }
00281         kdDebug(5800) << "replacing existing incidence " << i->uid() << endl;
00282         bool res = true;
00283         AssignmentVisitor visitor;
00284         const QString oldUid = i->uid();
00285         if ( !visitor.assign( i, inc ) ) {
00286           kdError(5800) << "assigning different incidence types" << endl;
00287           res = false;
00288         } else {
00289           {
00290             // issue4579: DON'T change this order. setUid() emits incidenceUpdated().
00291             // setSchedulingID() doesn't. If you change the order, kolab resource will
00292             // catch the signal and think there isn't any schedulingId.
00293             // Possible kcal improvement: create a setUids( schedulingId, uid )
00294             // that changes both members and emits incidenceuIpdated() at the end.
00295             i->setSchedulingID( inc->uid() );
00296             i->setUid( oldUid );
00297           }
00298         }
00299         deleteTransaction( incidence );
00300         return res;
00301       }
00302     } else {
00303       // This isn't an update - the found incidence has a bigger revision number
00304       kdDebug(5800) << "This isn't an update - the found incidence has a bigger revision number" << endl;
00305       deleteTransaction(incidence);
00306       return false;
00307     }
00308   }
00309 
00310   // Move the uid to be the schedulingID and make a unique UID
00311   inc->setSchedulingID( inc->uid() );
00312   inc->setUid( CalFormat::createUniqueId() );
00313   // notify the user in case this is an update and we didn't find the to-be-updated incidence
00314   if ( existingIncidences.count() == 0 && inc->revision() > 0 ) {
00315     KMessageBox::information(
00316       0,
00317       i18n( "<qt>"
00318             "You accepted an invitation update, but an earlier version of the "
00319             "item could not be found in your calendar.<p>"
00320             "This may have occurred because:<ul>"
00321             "<li>the organizer did not include you in the original invitation</li>"
00322             "<li>you did not accept the original invitation yet</li>"
00323             "<li>you deleted the original invitation from your calendar</li>"
00324             "<li>you no longer have access to the calendar containing the invitation</li>"
00325             "</ul>"
00326             "This is not a problem, but we thought you should know.</qt>" ),
00327       i18n( "Cannot find invitation to be updated" ), "AcceptCantFindIncidence" );
00328   }
00329   kdDebug(5800) << "Storing new incidence with scheduling uid=" << inc->schedulingID()
00330                 << " and uid=" << inc->uid() << endl;
00331 
00332   CalendarResources *stdcal = dynamic_cast<CalendarResources *>( mCalendar );
00333   if( stdcal && !stdcal->hasCalendarResources() ) {
00334     KMessageBox::sorry(
00335       0,
00336       i18n( "No calendars found, unable to save the invitation." ) );
00337     return false;
00338   }
00339 
00340   // FIXME: This is a nasty hack, since we need to set a parent for the
00341   //        resource selection dialog. However, we don't have any UI methods
00342   //        in the calendar, only in the CalendarResources::DestinationPolicy
00343   //        So we need to type-cast it and extract it from the CalendarResources
00344   QWidget *tmpparent = 0;
00345   if ( stdcal ) {
00346     tmpparent = stdcal->dialogParentWidget();
00347     stdcal->setDialogParentWidget( 0 );
00348   }
00349 
00350 TryAgain:
00351   bool success = false;
00352   if ( stdcal ) {
00353     success = stdcal->addIncidence( inc );
00354   } else {
00355     success = mCalendar->addIncidence( inc );
00356   }
00357 
00358   if ( !success ) {
00359     ErrorFormat *e = stdcal ? stdcal->exception() : 0;
00360 
00361     if ( e && e->errorCode() == KCal::ErrorFormat::UserCancel &&
00362          KMessageBox::warningYesNo(
00363            0,
00364            i18n( "You canceled the save operation. Therefore, the appointment will not be "
00365                  "stored in your calendar even though you accepted the invitation. "
00366                  "Are you certain you want to discard this invitation? " ),
00367            i18n( "Discard this invitation?" ),
00368            i18n( "Discard" ), i18n( "Go Back to Folder Selection" ) ) == KMessageBox::Yes ) {
00369       KMessageBox::information(
00370         0,
00371         i18n( "The invitation \"%1\" was not saved to your calendar "
00372               "but you are still listed as an attendee for that appointment.\n"
00373               "If you mistakenly accepted the invitation or do not plan to attend, please notify "
00374               "the organizer %2 and ask them to remove you from the attendee list.").
00375         arg( inc->summary(),  inc->organizer().fullName() ) );
00376       deleteTransaction( incidence );
00377       return true;
00378     } else {
00379       goto TryAgain;
00380     }
00381 
00382     // We can have a failure if the user pressed [cancel] in the resource
00383     // selectdialog, so check the exception.
00384     if ( !e ||
00385          ( e && ( e->errorCode() != KCal::ErrorFormat::UserCancel &&
00386                   e->errorCode() != KCal::ErrorFormat::NoWritableFound ) ) ) {
00387       QString errMessage = i18n( "Unable to save %1 \"%2\"." ).
00388                            arg( i18n( inc->type() ) ).
00389                            arg( inc->summary() );
00390       KMessageBox::sorry( 0, errMessage );
00391     }
00392     return false;
00393   }
00394 
00395   deleteTransaction( incidence );
00396   return true;
00397 }
00398 
00399 bool Scheduler::acceptAdd(IncidenceBase *incidence,ScheduleMessage::Status /* status */)
00400 {
00401   deleteTransaction(incidence);
00402   return false;
00403 }
00404 
00405 bool Scheduler::acceptCancel( IncidenceBase *incidence,
00406                               ScheduleMessage::Status status,
00407                               const QString &attendee )
00408 {
00409   Incidence *inc = static_cast<Incidence *>( incidence );
00410   if ( !inc ) {
00411     return false;
00412   }
00413 
00414   if ( inc->type() == "FreeBusy" ) {
00415     // reply to this request is handled in korganizer's incomingdialog
00416     return true;
00417   }
00418 
00419   const Incidence::List existingIncidences = mCalendar->incidencesFromSchedulingID( inc->uid() );
00420   kdDebug(5800) << "Scheduler::acceptCancel="
00421                 << ScheduleMessage::statusName( status )
00422                 << ": found " << existingIncidences.count()
00423                 << " incidences with schedulingID " << inc->schedulingID()
00424                 << endl;
00425 
00426   // Remove existing incidences that aren't stored in my calendar as we
00427   // will never attempt to remove those -- even if we have write-access.
00428   Incidence::List myExistingIncidences;
00429   Incidence::List::ConstIterator incit = existingIncidences.begin();
00430   for ( ; incit != existingIncidences.end() ; ++incit ) {
00431     Incidence *i = *incit;
00432     if ( CalHelper::isMyCalendarIncidence( mCalendar, i ) ) {
00433       myExistingIncidences.append( i );
00434     }
00435   }
00436 
00437   bool ret = false;
00438   incit = myExistingIncidences.begin();
00439   for ( ; incit != myExistingIncidences.end() ; ++incit ) {
00440     Incidence *i = *incit;
00441     kdDebug(5800) << "Considering this found event ("
00442                   << ( i->isReadOnly() ? "readonly" : "readwrite" )
00443                   << ") :" << mFormat->toString( i ) << endl;
00444 
00445     // If it's readonly, we can't possible remove it.
00446     if ( i->isReadOnly() ) {
00447       continue;
00448     }
00449 
00450     // Code for new invitations:
00451     // We cannot check the value of "status" to be RequestNew because
00452     // "status" comes from a similar check inside libical, where the event
00453     // is compared to other events in the calendar. But if we have another
00454     // version of the event around (e.g. shared folder for a group), the
00455     // status could be RequestNew, Obsolete or Updated.
00456     kdDebug(5800) << "looking in " << i->uid() << "'s attendees" << endl;
00457 
00458     // This is supposed to be a new request, not an update - however we want
00459     // to update the existing one to handle the "clicking more than once
00460     // on the invitation" case. So check the attendee status of the attendee.
00461     bool isMine = true;
00462     const KCal::Attendee::List attendees = i->attendees();
00463     KCal::Attendee::List::ConstIterator ait;
00464     for ( ait = attendees.begin(); ait != attendees.end(); ++ait ) {
00465       if ( (*ait)->email() == attendee &&
00466            (*ait)->status() == Attendee::NeedsAction ) {
00467         // This incidence wasn't created by me - it's probably in a shared
00468         // folder and meant for someone else, ignore it.
00469         kdDebug(5800) << "ignoring " << i->uid()
00470                       << " since I'm still NeedsAction there" << endl;
00471         isMine = false;
00472         break;
00473       }
00474     }
00475 
00476     if ( isMine ) {
00477       kdDebug(5800) << "removing existing incidence " << i->uid() << endl;
00478       if ( i->type() == "Event" ) {
00479         Event *event = mCalendar->event( i->uid() );
00480         ret = ( event && mCalendar->deleteEvent( event ) );
00481       } else if ( i->type() == "Todo" ) {
00482         Todo *todo = mCalendar->todo( i->uid() );
00483         ret = ( todo && mCalendar->deleteTodo( todo ) );
00484       }
00485       deleteTransaction( incidence );
00486       return ret;
00487     }
00488   }
00489 
00490   // in case we didn't find the to-be-removed incidence
00491   if ( myExistingIncidences.count() > 0 && inc->revision() > 0 ) {
00492     KMessageBox::information(
00493       0,
00494       i18n( "The event or task could not be removed from your calendar. "
00495             "Maybe it has already been deleted or is not owned by you. "
00496             "Or it might belong to a read-only or disabled calendar." ) );
00497   }
00498   deleteTransaction( incidence );
00499   return ret;
00500 }
00501 
00502 bool Scheduler::acceptCancel(IncidenceBase *incidence,ScheduleMessage::Status /* status */)
00503 {
00504   const IncidenceBase *toDelete = mCalendar->incidenceFromSchedulingID( incidence->uid() );
00505 
00506   bool ret = true;
00507   if ( toDelete ) {
00508     if ( toDelete->type() == "Event" ) {
00509       Event *event = mCalendar->event( toDelete->uid() );
00510       ret = ( event && mCalendar->deleteEvent( event ) );
00511     } else if ( toDelete->type() == "Todo" ) {
00512       Todo *todo = mCalendar->todo( toDelete->uid() );
00513       ret = ( todo && mCalendar->deleteTodo( todo ) );
00514     }
00515   } else {
00516     // only complain if we failed to determine the toDelete incidence
00517     // on non-initial request.
00518     Incidence *inc = static_cast<Incidence *>( incidence );
00519     if ( inc->revision() > 0 ) {
00520       ret = false;
00521     }
00522   }
00523 
00524   if ( !ret ) {
00525     KMessageBox::information(
00526       0,
00527       i18n( "The event or task to be canceled could not be removed from your calendar. "
00528             "Maybe it has already been deleted or is not owned by you. "
00529             "Or it might belong to a read-only or disabled calendar." ) );
00530   }
00531   deleteTransaction(incidence);
00532   return ret;
00533 }
00534 
00535 bool Scheduler::acceptDeclineCounter(IncidenceBase *incidence,ScheduleMessage::Status /* status */)
00536 {
00537   deleteTransaction(incidence);
00538   return false;
00539 }
00540 
00541 //bool Scheduler::acceptFreeBusy(Incidence *incidence,ScheduleMessage::Status status)
00542 //{
00543 //  deleteTransaction(incidence);
00544 //  return false;
00545 //}
00546 
00547 bool Scheduler::acceptReply(IncidenceBase *incidence,ScheduleMessage::Status /* status */, Method method)
00548 {
00549   if(incidence->type()=="FreeBusy") {
00550     return acceptFreeBusy(incidence, method);
00551   }
00552   bool ret = false;
00553   Event *ev = mCalendar->event(incidence->uid());
00554   Todo *to = mCalendar->todo(incidence->uid());
00555 
00556   // try harder to find the correct incidence
00557   if ( !ev && !to ) {
00558     const Incidence::List list = mCalendar->incidences();
00559     for ( Incidence::List::ConstIterator it = list.begin(), end = list.end(); it != end; ++it ) {
00560       if ( (*it)->schedulingID() == incidence->uid() ) {
00561         ev = dynamic_cast<Event*>( *it );
00562         to = dynamic_cast<Todo*>( *it );
00563         break;
00564       }
00565     }
00566   }
00567 
00568   if (ev || to) {
00569     //get matching attendee in calendar
00570     kdDebug(5800) << "Scheduler::acceptTransaction match found!" << endl;
00571     Attendee::List attendeesIn = incidence->attendees();
00572     Attendee::List attendeesEv;
00573     Attendee::List attendeesNew;
00574     if (ev) attendeesEv = ev->attendees();
00575     if (to) attendeesEv = to->attendees();
00576     Attendee::List::ConstIterator inIt;
00577     Attendee::List::ConstIterator evIt;
00578     for ( inIt = attendeesIn.begin(); inIt != attendeesIn.end(); ++inIt ) {
00579       Attendee *attIn = *inIt;
00580       bool found = false;
00581       for ( evIt = attendeesEv.begin(); evIt != attendeesEv.end(); ++evIt ) {
00582         Attendee *attEv = *evIt;
00583         if (attIn->email().lower()==attEv->email().lower()) {
00584           //update attendee-info
00585           kdDebug(5800) << "Scheduler::acceptTransaction update attendee" << endl;
00586           attEv->setStatus(attIn->status());
00587           attEv->setDelegate(attIn->delegate());
00588           attEv->setDelegator(attIn->delegator());
00589           ret = true;
00590           found = true;
00591         }
00592       }
00593       if ( !found && attIn->status() != Attendee::Declined )
00594         attendeesNew.append( attIn );
00595     }
00596 
00597     bool attendeeAdded = false;
00598     for ( Attendee::List::ConstIterator it = attendeesNew.constBegin(); it != attendeesNew.constEnd(); ++it ) {
00599       Attendee* attNew = *it;
00600       QString msg = i18n("%1 wants to attend %2 but was not invited.").arg( attNew->fullName() )
00601           .arg( ev ? ev->summary() : to->summary() );
00602       if ( !attNew->delegator().isEmpty() )
00603         msg = i18n("%1 wants to attend %2 on behalf of %3.").arg( attNew->fullName() )
00604             .arg( ev ? ev->summary() : to->summary() )
00605             .arg( attNew->delegator() );
00606       if ( KMessageBox::questionYesNo( 0, msg, i18n("Uninvited attendee"),
00607            KGuiItem(i18n("Accept Attendance")), KGuiItem(i18n("Reject Attendance")) )
00608            != KMessageBox::Yes )
00609       {
00610         KCal::Incidence *cancel = dynamic_cast<Incidence*>( incidence );
00611         if ( cancel )
00612           cancel->addComment( i18n( "The organizer rejected your attendance at this meeting." ) );
00613         performTransaction( cancel ? cancel : incidence, Scheduler::Cancel, attNew->fullName() );
00614         delete cancel;
00615         continue;
00616       }
00617 
00618       Attendee *a = new Attendee( attNew->name(), attNew->email(), attNew->RSVP(),
00619                                   attNew->status(), attNew->role(), attNew->uid() );
00620       a->setDelegate( attNew->delegate() );
00621       a->setDelegator( attNew->delegator() );
00622       if ( ev )
00623         ev->addAttendee( a );
00624       else if ( to )
00625         to->addAttendee( a );
00626       ret = true;
00627       attendeeAdded = true;
00628     }
00629 
00630     // send update about new participants
00631     if ( attendeeAdded ) {
00632       bool sendMail = false;
00633       if ( ev || to ) {
00634         if ( KMessageBox::questionYesNo( 0, i18n( "An attendee was added to the incidence. "
00635                                                   "Do you want to email the attendees an update message?" ),
00636                                          i18n( "Attendee Added" ), i18n( "Send Messages" ),
00637                                          i18n( "Do Not Send" ) ) == KMessageBox::Yes ) {
00638           sendMail = true;
00639         }
00640       }
00641 
00642       if ( ev ) {
00643         ev->setRevision( ev->revision() + 1 );
00644         if ( sendMail )
00645           performTransaction( ev, Scheduler::Request );
00646       }
00647       if ( to ) {
00648         to->setRevision( to->revision() + 1 );
00649         if ( sendMail )
00650           performTransaction( to, Scheduler::Request );
00651       }
00652     }
00653 
00654     if ( ret ) {
00655       // We set at least one of the attendees, so the incidence changed
00656       // Note: This should not result in a sequence number bump
00657       if ( ev )
00658         ev->updated();
00659       else if ( to )
00660         to->updated();
00661     }
00662     if ( to ) {
00663       // for VTODO a REPLY can be used to update the completion status of
00664       // a task. see RFC2446 3.4.3
00665       Todo *update = dynamic_cast<Todo*> ( incidence );
00666       Q_ASSERT( update );
00667       if ( update && ( to->percentComplete() != update->percentComplete() ) ) {
00668         to->setPercentComplete( update->percentComplete() );
00669         to->updated();
00670       }
00671     }
00672   } else
00673     kdError(5800) << "No incidence for scheduling\n";
00674   if (ret) deleteTransaction(incidence);
00675   return ret;
00676 }
00677 
00678 bool Scheduler::acceptRefresh(IncidenceBase *incidence,ScheduleMessage::Status /* status */)
00679 {
00680   // handled in korganizer's IncomingDialog
00681   deleteTransaction(incidence);
00682   return false;
00683 }
00684 
00685 bool Scheduler::acceptCounter(IncidenceBase *incidence,ScheduleMessage::Status /* status */)
00686 {
00687   deleteTransaction(incidence);
00688   return false;
00689 }
00690 
00691 bool Scheduler::acceptFreeBusy(IncidenceBase *incidence, Method method)
00692 {
00693   if ( !d->mFreeBusyCache ) {
00694     kdError() << "KCal::Scheduler: no FreeBusyCache." << endl;
00695     return false;
00696   }
00697 
00698   FreeBusy *freebusy = static_cast<FreeBusy *>(incidence);
00699 
00700   kdDebug(5800) << "acceptFreeBusy:: freeBusyDirName: " << freeBusyDir() << endl;
00701 
00702   Person from;
00703   if(method == Scheduler::Publish) {
00704     from = freebusy->organizer();
00705   }
00706   if((method == Scheduler::Reply) && (freebusy->attendeeCount() == 1)) {
00707     Attendee *attendee = freebusy->attendees().first();
00708     from = attendee->email();
00709   }
00710 
00711   if ( !d->mFreeBusyCache->saveFreeBusy( freebusy, from ) ) return false;
00712 
00713   deleteTransaction(incidence);
00714   return true;
00715 }
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