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Fix lock file handling in saveDatabaseAs().

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This commit is contained in:
Felix Geyer 2015-07-18 22:45:53 +02:00
parent 1226d1dbd5
commit df5da2fcef
1 changed files with 46 additions and 25 deletions
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71
src/gui/DatabaseTabWidget.cpp
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@ -329,36 +329,57 @@ bool DatabaseTabWidget::saveDatabaseAs(Database* db)
QString fileName = fileDialog()->getSaveFileName(this, tr("Save database as"),
oldFileName, tr("KeePass 2 Database").append(" (*.kdbx)"));
if (!fileName.isEmpty()) {
bool result = false;
QSaveFile saveFile(fileName);
if (saveFile.open(QIODevice::WriteOnly)) {
m_writer.writeDatabase(&saveFile, db);
result = saveFile.commit();
}
if (result) {
dbStruct.modified = false;
dbStruct.saveToFilename = true;
QFileInfo fileInfo(fileName);
dbStruct.filePath = fileInfo.absoluteFilePath();
dbStruct.canonicalFilePath = fileInfo.canonicalFilePath();
dbStruct.fileName = fileInfo.fileName();
dbStruct.dbWidget->updateFilename(dbStruct.filePath);
QString lockFileName = QString("%1/.%2.lock")
.arg(fileInfo.canonicalPath(), fileInfo.fileName());
dbStruct.lockFile = new QLockFile(lockFileName);
dbStruct.lockFile->setStaleLockTime(0);
dbStruct.lockFile->tryLock();
updateTabName(db);
updateLastDatabases(dbStruct.filePath);
return true;
}
else {
if (!saveFile.open(QIODevice::WriteOnly)) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ saveFile.errorString());
return false;
}
QFileInfo fileInfo(fileName);
QString lockFileName = QString("%1/.%2.lock").arg(fileInfo.canonicalPath(), fileInfo.fileName());
QScopedPointer<QLockFile> lockFile(new QLockFile(lockFileName));
lockFile->setStaleLockTime(0);
if (!lockFile->tryLock()) {
// for now silently ignore if we can't create a lock file
// due to lack of permissions
if (lockFile->error() != QLockFile::PermissionError) {
QMessageBox::StandardButton result = MessageBox::question(this, tr("Save database as"),
tr("The database you are trying to save as is locked by another instance of KeePassX.\n"
"Do you want to save it anyway?"),
QMessageBox::Yes | QMessageBox::No);
if (result == QMessageBox::No) {
return false;
}
else {
// take over the lock file if possible
if (lockFile->removeStaleLockFile()) {
lockFile->tryLock();
}
}
}
}
m_writer.writeDatabase(&saveFile, db);
if (!saveFile.commit()) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ saveFile.errorString());
return false;
}
dbStruct.modified = false;
dbStruct.saveToFilename = true;
dbStruct.readOnly = false;
dbStruct.filePath = fileInfo.absoluteFilePath();
dbStruct.canonicalFilePath = fileInfo.canonicalFilePath();
dbStruct.fileName = fileInfo.fileName();
dbStruct.dbWidget->updateFilename(dbStruct.filePath);
delete dbStruct.lockFile;
dbStruct.lockFile = lockFile.take();
updateTabName(db);
updateLastDatabases(dbStruct.filePath);
return true;
}
else {
return false;