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Try to avoid loading a corrupted configuration file. Also log errors encountered while saving/loading the configuration. Closes #3503.

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This commit is contained in:
sledgehammer999 2015-09-14 02:23:13 +03:00
parent 0b2b07e98e
commit 8bde7d45b8
1 changed files with 15 additions and 4 deletions
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19
src/core/preferences.cpp
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@ -32,6 +32,7 @@
#include "preferences.h"
#include "qinisettings.h"
#include "logger.h"
#include <QCryptographicHash>
#include <QPair>
@ -68,12 +69,12 @@ Preferences::Preferences()
QStringList keys = settings_new->allKeys();
bool use_new = false;
// This means that the PC closed either due to power outage
// or because the disk was full. In any case the settings weren't transfered
// in their final position. So assume that qbittorrent_new.ini/qbittorrent_new.conf
// contains the most recent settings.
if (!keys.isEmpty()) {
Logger::instance()->addMessage(tr("Detected unclean program exit. Using fallback file to restore settings."), Log::WARNING);
use_new = true;
dirty = true;
}
@ -101,7 +102,9 @@ Preferences::Preferences()
//Ensures sync to disk before we attempt to manipulate the files from save().
delete settings;
#ifndef Q_OS_MAC
QString new_path = settings_new->fileName();
delete settings_new;
Utils::Fs::forceRemove(new_path);
if (use_new)
save();
@ -138,7 +141,7 @@ void Preferences::freeInstance()
bool Preferences::save()
{
QReadLocker locker(&lock);
QWriteLocker locker(&lock);
if (!dirty) return false;
@ -161,11 +164,19 @@ bool Preferences::save()
#ifndef Q_OS_MAC
settings->sync(); // Important to get error status
if (settings->status() == QSettings::AccessError) {
QString new_path = settings->fileName();
QSettings::Status status = settings->status();
if (status != QSettings::NoError) {
if (status == QSettings::AccessError)
Logger::instance()->addMessage(tr("An access error occurred while trying to write the configuration file."), Log::CRITICAL);
else
Logger::instance()->addMessage(tr("A format error occurred while trying to write the configuration file."), Log::CRITICAL);
delete settings;
Utils::Fs::forceRemove(new_path);
return false;
}
QString new_path = settings->fileName();
delete settings;
QString final_path = new_path;
int index = final_path.lastIndexOf("_new", -1, Qt::CaseInsensitive);