int CalDavClient::removeCommonIncidences(KCalCore::Incidence::List *firstList, KCalCore::Incidence::List *secondList)
{
QSet<QString> firstListUids;
for (int i=0; i<firstList->count(); i++) {
firstListUids.insert(firstList->at(i)->uid());
}
QSet<QString> commonUids;
for (KCalCore::Incidence::List::iterator it = secondList->begin(); it != secondList->end();) {
KCalCore::Incidence::Ptr incidence = *it;
if (firstListUids.contains(incidence->uid())) {
commonUids.insert(incidence->uid());
it = secondList->erase(it);
} else {
++it;
}
}
int removed = commonUids.count();
if (removed > 0) {
for (KCalCore::Incidence::List::iterator it = firstList->begin(); it != firstList->end();) {
KCalCore::Incidence::Ptr incidence = *it;
if (commonUids.contains(incidence->uid())) {
commonUids.remove(incidence->uid());
it = firstList->erase(it);
} else {
++it;
}
}
}
return removed;
}
static bool incidenceLessThan(const KCalCore::Incidence::Ptr e1,
const KCalCore::Incidence::Ptr e2)
{
if (e1->dtStart() == e2->dtStart()) {
int cmp = QString::compare(e1->summary(),
e2->summary(),
Qt::CaseInsensitive);
if (cmp == 0)
return QString::compare(e1->uid(), e2->uid()) < 0;
else
return cmp < 0;
} else {
return e1->dtStart() < e2->dtStart();
}
}
bool NotebookSyncAgent::discardRemoteChanges(KCalCore::Incidence::List *localInserted,
KCalCore::Incidence::List *localModified,
KCalCore::Incidence::List *localDeleted)
{
NOTEBOOK_FUNCTION_CALL_TRACE;
// Go through the local inserted, modified and deletions list and:
// - Discard from them respectively the additions, modifications and deletions that were
// created as a result of the last remote sync.
// - Discard any incidences that have already been deleted on the server. (These will be
// deleted locally when the current sync finishes.)
// - Discard any local modifications that were modified on the server, as the server
// modifications take precedence.
if (!mNotebook) {
LOG_CRITICAL("no notebook");
return false;
}
bool ok = false;
QSet<QString> remoteDeletedIncidences = QSet<QString>::fromList(mIncidenceUidsToDelete);
QStringList additions = mDatabase->additions(mNotebook->uid(), &ok);
if (!ok) {
LOG_CRITICAL("Unable to look up last sync additions for notebook:" << mNotebook->uid());
return false;
}
QHash<QString,QString> modifications = mDatabase->modifications(mNotebook->uid(), &ok);
if (!ok) {
LOG_CRITICAL("Unable to look up last sync modifications for notebook:" << mNotebook->uid());
return false;
}
for (KCalCore::Incidence::List::iterator it = localInserted->begin(); it != localInserted->end();) {
const KCalCore::Incidence::Ptr &incidence = *it;
const QString &uid = incidence->uid();
if (remoteDeletedIncidences.contains(uid)) {
LOG_DEBUG("Discarding addition deleted on server:" << uid);
it = localInserted->erase(it);
} else if (additions.indexOf(uid) >= 0) {
if (incidence->lastModified().isValid() && incidence->lastModified() > incidence->created()) {
// This incidence has been modified since it was added from the server in the last sync,
// so it's a modification rather than an addition.
LOG_DEBUG("Moving to modified:" << uid);
KCalCore::Incidence::Ptr savedIncidence = fetchIncidence(mCalendar, uid);
if (savedIncidence) {
localModified->append(savedIncidence);
it = localInserted->erase(it);
} else {
++it;
}
} else {
LOG_DEBUG("Discarding addition from previous sync:" << uid);
it = localInserted->erase(it);
}
} else {
++it;
}
}
QSet<QString> serverModifiedUids;
for (int i=0; i<mReceivedCalendarResources.count(); i++) {
serverModifiedUids.insert(Reader::hrefToUid(mReceivedCalendarResources[i].href));
}
for (KCalCore::Incidence::List::iterator it = localModified->begin(); it != localModified->end();) {
KCalCore::Incidence::Ptr sourceIncidence = *it;
const QString &uid = sourceIncidence->uid();
if (remoteDeletedIncidences.contains(uid) || serverModifiedUids.contains(uid)) {
LOG_DEBUG("Discarding modification,"
<< (remoteDeletedIncidences.contains(uid) ? "was already deleted on server" : "")
<< (serverModifiedUids.contains(uid) ? "was already modified on server": ""));
it = localModified->erase(it);
continue;
} else if (modifications.contains(uid)) {
KCalCore::ICalFormat iCalFormat;
KCalCore::Incidence::Ptr receivedIncidence = iCalFormat.fromString(modifications[uid]);
if (receivedIncidence.isNull()) {
LOG_WARNING("Not sending modification, cannot parse the received incidence:" << modifications[uid]);
it = localModified->erase(it);
continue;
}
// If incidences are the same, then we assume the local incidence was not changed after
// the remote incidence was received, and thus there are no modifications to report.
IncidenceHandler::prepareImportedIncidence(receivedIncidence); // ensure fields are updated as per imported incidences
if (IncidenceHandler::copiedPropertiesAreEqual(sourceIncidence, receivedIncidence)) {
LOG_DEBUG("Discarding modification" << uid);
it = localModified->erase(it);
continue;
}
}
// The default storage implementation applies the organizer as an attendee by default. Don't do this
// as it turns the incidence into a scheduled event requiring acceptance/rejection/etc.
const KCalCore::Person::Ptr organizer = sourceIncidence->organizer();
if (organizer) {
Q_FOREACH (const KCalCore::Attendee::Ptr &attendee, sourceIncidence->attendees()) {
if (attendee->email() == organizer->email() && attendee->fullName() == organizer->fullName()) {
LOG_DEBUG("Discarding organizer as attendee" << attendee->fullName());
sourceIncidence->deleteAttendee(attendee);
break;
}
}
}
++it;
}
QStringList deletions = mDatabase->deletions(mNotebook->uid(), &ok);
if (!ok) {
LOG_CRITICAL("Unable to look up last sync deletions for notebook:" << mNotebook->uid());
return false;
}
for (KCalCore::Incidence::List::iterator it = localDeleted->begin(); it != localDeleted->end();) {
const QString &uid = (*it)->uid();
mLocalDeletedUids.insert(uid);
if (remoteDeletedIncidences.contains(uid) || deletions.indexOf(uid) >= 0) {
LOG_DEBUG("Discarding deletion" << uid);
it = localDeleted->erase(it);
} else {
++it;
}
}
return true;
}