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/*
Copyright (c) 2010 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Copyright (c) 2010 Andras Mantia <andras@kdab.com>
Copyright (c) 2012 Dan Vrátil <dvratil@redhat.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "removeduplicatesjob.h"
#include "akonadi_mime_debug.h"
#include <itemfetchjob.h>
#include <itemdeletejob.h>
#include <itemfetchscope.h>
#include <kmime/kmime_message.h>
#include <KLocalizedString>
class Q_DECL_HIDDEN Akonadi::RemoveDuplicatesJob::Private
{
public:
Private(RemoveDuplicatesJob *parent)
: mCurrentJob(nullptr)
, mJobCount(0)
, mKilled(false)
, mParent(parent)
{
}
void fetchItem()
{
Akonadi::Collection collection = mFolders.value(mJobCount - 1);
qCDebug(AKONADIMIME_LOG) << "Processing collection" << collection.name() << "(" << collection.id() << ")";
Akonadi::ItemFetchJob *job = new Akonadi::ItemFetchJob(collection, mParent);
job->fetchScope().setAncestorRetrieval(Akonadi::ItemFetchScope::Parent);
job->fetchScope().fetchFullPayload();
job->fetchScope().setIgnoreRetrievalErrors(true);
mParent->connect(job, &ItemFetchJob::result, mParent, [this](KJob *job) {
slotFetchDone(job);
});
mCurrentJob = job;
Q_EMIT mParent->description(mParent, i18n("Retrieving items..."));
}
void slotFetchDone(KJob *job)
{
mJobCount--;
if (job->error()) {
mParent->setError(job->error());
mParent->setErrorText(job->errorText());
mParent->emitResult();
return;
}
if (mKilled) {
mParent->emitResult();
return;
}
Q_EMIT mParent->description(mParent, i18n("Searching for duplicates..."));
Akonadi::ItemFetchJob *fjob = static_cast<Akonadi::ItemFetchJob *>(job);
Akonadi::Item::List items = fjob->items();
//find duplicate mails with the same messageid
//if duplicates are found, check the content as well to be sure they are the same
QMap<QByteArray, uint> messageIds;
QMap<uint, QList<uint> > duplicates;
QMap<uint, uint> bodyHashes;
const int numberOfItems(items.size());
for (int i = 0; i < numberOfItems; ++i) {
Akonadi::Item item = items.at(i);
if (item.hasPayload<KMime::Message::Ptr>()) {
KMime::Message::Ptr message = item.payload<KMime::Message::Ptr>();
QByteArray idStr = message->messageID()->as7BitString(false);
//TODO: Maybe do some more check in case of idStr.isEmpty()
//like when the first message's body is different from the 2nd,
//but the 2nd is the same as the 3rd, etc.
//if ( !idStr.isEmpty() )
{
if (messageIds.contains(idStr)) {
uint mainId = messageIds.value(idStr);
if (!bodyHashes.contains(mainId)) {
bodyHashes.insert(mainId, qHash(items.value(mainId).payload<KMime::Message::Ptr>()->encodedContent()));
}
uint hash = qHash(message->encodedContent());
qCDebug(AKONADIMIME_LOG) << idStr << bodyHashes.value(mainId) << hash;
if (bodyHashes.value(mainId) == hash) {
duplicates[mainId].append(i);
}
} else {
messageIds.insert(idStr, i);
}
}
}
}
QMap<uint, QList<uint> >::ConstIterator end(duplicates.constEnd());
for (QMap<uint, QList<uint> >::ConstIterator it = duplicates.constBegin(); it != end; ++it) {
QList<uint>::ConstIterator dupEnd(it.value().constEnd());
for (QList<uint>::ConstIterator dupIt = it.value().constBegin(); dupIt != dupEnd; ++dupIt) {
mDuplicateItems.append(items.value(*dupIt));
}
}
if (mKilled) {
mParent->emitResult();
return;
}
if (mJobCount > 0) {
fetchItem();
} else {
if (mDuplicateItems.isEmpty()) {
qCDebug(AKONADIMIME_LOG) << "No duplicates, I'm done here";
mParent->emitResult();
return;
} else {
Q_EMIT mParent->description(mParent, i18n("Removing duplicates..."));
Akonadi::ItemDeleteJob *delCmd = new Akonadi::ItemDeleteJob(mDuplicateItems, mParent);
mParent->connect(delCmd, &ItemDeleteJob::result, mParent, [this](KJob *job) {
slotDeleteDone(job);
});
}
}
}
void slotDeleteDone(KJob *job)
{
qCDebug(AKONADIMIME_LOG) << "Job done";
mParent->setError(job->error());
mParent->setErrorText(job->errorText());
mParent->emitResult();
}
Akonadi::Collection::List mFolders;
Akonadi::Item::List mDuplicateItems;
Akonadi::Job *mCurrentJob = nullptr;
int mJobCount;
bool mKilled = false;
private:
RemoveDuplicatesJob *mParent = nullptr;
};
using namespace Akonadi;
RemoveDuplicatesJob::RemoveDuplicatesJob(const Akonadi::Collection &folder, QObject *parent)
: Job(parent)
, d(new Private(this))
{
d->mJobCount = 1;
d->mFolders << folder;
}
RemoveDuplicatesJob::RemoveDuplicatesJob(const Akonadi::Collection::List &folders, QObject *parent)
: Job(parent)
, d(new Private(this))
{
d->mFolders = folders;
d->mJobCount = d->mFolders.length();
}
RemoveDuplicatesJob::~RemoveDuplicatesJob()
{
delete d;
}
void RemoveDuplicatesJob::doStart()
{
qCDebug(AKONADIMIME_LOG) << " void RemoveDuplicatesJob::doStart()";
if (d->mFolders.isEmpty()) {
qCWarning(AKONADIMIME_LOG) << "No collections to process";
emitResult();
return;
}
d->fetchItem();
}
bool RemoveDuplicatesJob::doKill()
{
qCDebug(AKONADIMIME_LOG) << "Killed!";
d->mKilled = true;
if (d->mCurrentJob) {
d->mCurrentJob->kill(EmitResult);
}
return true;
}
#include "moc_removeduplicatesjob.cpp"
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