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Hacky fix to cancelling a switch to an encrypted profile closing

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It's either this or some fairly major refactoring, which is preferable,
but I've got another even bigger refactoring in mind, and fixing this
will be rolled into that.
Closes dubslow/qTox#4
This commit is contained in:
Dubslow 2015-01-27 14:16:28 -06:00
parent ed22dc9ca5
commit 60e819baee
No known key found for this signature in database
GPG Key ID: 3DB8E05315C220AA
3 changed files with 71 additions and 13 deletions
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11
src/core.cpp
View File

@ -222,11 +222,21 @@ void Core::start()
while (!loadConfiguration(loadPath))
{
if (loadPath.isEmpty())
{
QString profile;
if ((profile = loadOldInformation()).isEmpty())
{
qCritical() << "Core: loadConfiguration failed, exiting now";
emit failedToStart();
return;
}
else
{
loadPath = QDir(Settings::getSettingsDirPath()).filePath(profile + TOX_EXT);
Settings::getInstance().switchProfile(profile);
HistoryKeeper::resetInstance(); // I'm not actually sure if this is necessary
}
}
}
// loadPath is meaningless after this
loadPath = "";
@ -1255,6 +1265,7 @@ void Core::switchConfiguration(const QString& profile)
qDebug() << "Core: switching from" << Settings::getInstance().getCurrentProfile() << "to" << profile;
saveConfiguration();
saveCurrentInformation(); // part of a hack, see core.h
ready = false;
Widget::getInstance()->setEnabledThreadsafe(false);

12
src/core.h
View File

@ -299,7 +299,17 @@ private:
QMutex fileSendMutex, messageSendMutex;
bool ready;
uint8_t* pwsaltedkeys[PasswordType::ptCounter]; // use the pw's hash as the "pw"
uint8_t* pwsaltedkeys[PasswordType::ptCounter] = {nullptr}; // use the pw's hash as the "pw"
// Hack for reloading current profile if switching to an encrypted one fails.
// Testing the passwords before killing the current profile is perfectly doable,
// however it would require major refactoring;
// the Core class as a whole also requires major refactoring (especially to support multiple IDs at once),
// so I'm punting on this until then, when it would get fixed anyways
uint8_t* backupkeys[PasswordType::ptCounter] = {nullptr};
QString* backupProfile = nullptr;
void saveCurrentInformation();
QString loadOldInformation();
static const int videobufsize;
static uint8_t* videobuf;

37
src/coreencryption.cpp
View File

@ -65,6 +65,43 @@ void Core::clearPassword(PasswordType passtype)
pwsaltedkeys[passtype] = nullptr;
}
// part of a hack, see core.h
void Core::saveCurrentInformation()
{
if (pwsaltedkeys[ptMain])
{
backupkeys[ptMain] = new uint8_t[tox_pass_key_length()];
std::copy(pwsaltedkeys[ptMain], pwsaltedkeys[ptMain]+tox_pass_key_length(), backupkeys[ptMain]);
}
if (pwsaltedkeys[ptHistory])
{
backupkeys[ptHistory] = new uint8_t[tox_pass_key_length()];
std::copy(pwsaltedkeys[ptHistory], pwsaltedkeys[ptHistory]+tox_pass_key_length(), backupkeys[ptHistory]);
}
backupProfile = new QString(Settings::getInstance().getCurrentProfile());
}
QString Core::loadOldInformation()
{
QString out;
if (backupProfile)
{
out = *backupProfile;
delete backupProfile;
backupProfile = nullptr;
}
backupProfile = nullptr;
clearPassword(ptMain);
clearPassword(ptHistory);
// we can just copy the pointer, as long as we null out backupkeys
// (if backupkeys was null anyways, then this is a null-op)
pwsaltedkeys[ptMain] = backupkeys[ptMain];
pwsaltedkeys[ptHistory] = backupkeys[ptHistory];
backupkeys[ptMain] = nullptr;
backupkeys[ptHistory] = nullptr;
return out;
}
QByteArray Core::encryptData(const QByteArray& data, PasswordType passtype)
{
if (!pwsaltedkeys[passtype])