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Properly block modified signal during Database destruction (#6438)

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fixes #6393
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Aetf 2021-05-27 21:50:15 -04:00 • committed by GitHub
parent 66c3026cf5
commit 81a66c439c
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GPG key ID: 4AEE18F83AFDEB23
34 changed files with 370 additions and 179 deletions
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22
src/gui/DatabaseWidget.cpp
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@ -99,6 +99,7 @@ DatabaseWidget::DatabaseWidget(QSharedPointer<Database> db, QWidget* parent)
, m_opVaultOpenWidget(new OpVaultOpenWidget(this))
, m_groupView(new GroupView(m_db.data(), m_mainSplitter))
, m_saveAttempts(0)
, m_entrySearcher(new EntrySearcher(false))
{
Q_ASSERT(m_db);
@ -211,7 +212,6 @@ DatabaseWidget::DatabaseWidget(QSharedPointer<Database> db, QWidget* parent)
m_blockAutoSave = false;
m_EntrySearcher = new EntrySearcher(false);
m_searchLimitGroup = config()->get(Config::SearchLimitGroup).toBool();
#ifdef WITH_XC_KEESHARE
@ -234,7 +234,13 @@ DatabaseWidget::DatabaseWidget(const QString& filePath, QWidget* parent)
DatabaseWidget::~DatabaseWidget()
{
delete m_EntrySearcher;
// Trigger any Database deletion related signals manually by
// explicitly clearing the Database pointer, instead of leaving it to ~QSharedPointer.
// QSharedPointer may behave differently depending on whether it is cleared by the `clear` method
// or by its destructor. In the latter case, the ref counter may not be correctly maintained
// if a copy of the QSharedPointer is created in any slots activated by the Database destructor.
// More details: https://github.com/keepassxreboot/keepassxc/issues/6393.
m_db.clear();
}
QSharedPointer<Database> DatabaseWidget::database() const
@ -1061,10 +1067,10 @@ void DatabaseWidget::connectDatabaseSignals()
SIGNAL(filePathChanged(QString, QString)),
SIGNAL(databaseFilePathChanged(QString, QString)));
connect(m_db.data(), SIGNAL(databaseModified()), SIGNAL(databaseModified()));
connect(m_db.data(), SIGNAL(databaseModified()), SLOT(onDatabaseModified()));
connect(m_db.data(), SIGNAL(databaseSaved()), SIGNAL(databaseSaved()));
connect(m_db.data(), SIGNAL(databaseFileChanged()), this, SLOT(reloadDatabaseFile()));
connect(m_db.data(), &Database::modified, this, &DatabaseWidget::databaseModified);
connect(m_db.data(), &Database::modified, this, &DatabaseWidget::onDatabaseModified);
connect(m_db.data(), &Database::databaseSaved, this, &DatabaseWidget::databaseSaved);
connect(m_db.data(), &Database::databaseFileChanged, this, &DatabaseWidget::reloadDatabaseFile);
}
void DatabaseWidget::loadDatabase(bool accepted)
@ -1366,7 +1372,7 @@ void DatabaseWidget::search(const QString& searchtext)
Group* searchGroup = m_searchLimitGroup ? currentGroup() : m_db->rootGroup();
QList<Entry*> searchResult = m_EntrySearcher->search(searchtext, searchGroup);
QList<Entry*> searchResult = m_entrySearcher->search(searchtext, searchGroup);
m_entryView->displaySearch(searchResult);
m_lastSearchText = searchtext;
@ -1388,7 +1394,7 @@ void DatabaseWidget::search(const QString& searchtext)
void DatabaseWidget::setSearchCaseSensitive(bool state)
{
m_EntrySearcher->setCaseSensitive(state);
m_entrySearcher->setCaseSensitive(state);
refreshSearch();
}