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Add a new database settings wizard

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This patch implements a new database wizard to guide users through the process
of setting up a new database and choosing sane encryption settings.

It also reimplements the master key settings to be more
user-friendly. Users can now add, change, or remove individual composite
key components instead of having to set all components at once. This
avoids confusion about a password being reset if the user only wants to
add a key file.

With these changes comes a major refactor of how database composite keys and key
components are handled. Copying of keys is prohibited and each key
exists only once in memory and is referenced via shared pointers. GUI
components for changing individual keys are encapsulated into separate
classes to be more reusable. The password edit and generator widgets
have also been refactored to be more reusable.
This commit is contained in:
Janek Bevendorff 2018-05-13 23:21:43 +02:00
parent e4ded388b4
commit e443cde452
116 changed files with 5054 additions and 1692 deletions
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54
src/core/Database.cpp
View file

@ -98,6 +98,16 @@ const Metadata* Database::metadata() const
return m_metadata;
}
QString Database::filePath() const
{
return m_filePath;
}
void Database::setFilePath(const QString& filePath)
{
m_filePath = filePath;
}
Entry* Database::resolveEntry(const QUuid& uuid)
{
return findEntryRecursive(uuid, m_rootGroup);
@ -244,7 +254,7 @@ QByteArray Database::challengeResponseKey() const
bool Database::challengeMasterSeed(const QByteArray& masterSeed)
{
m_data.masterSeed = masterSeed;
return m_data.key.challenge(masterSeed, m_data.challengeResponseKey);
return m_data.key->challenge(masterSeed, m_data.challengeResponseKey);
}
void Database::setCipher(const QUuid& cipher)
@ -264,13 +274,20 @@ void Database::setCompressionAlgo(Database::CompressionAlgorithm algo)
/**
* Set and transform a new encryption key.
*
* @param key key to set and transform
* @param key key to set and transform or nullptr to reset the key
* @param updateChangedTime true to update database change time
* @param updateTransformSalt true to update the transform salt
* @return true on success
*/
bool Database::setKey(const CompositeKey& key, bool updateChangedTime, bool updateTransformSalt)
bool Database::setKey(QSharedPointer<const CompositeKey> key, bool updateChangedTime, bool updateTransformSalt)
{
if (!key) {
m_data.key.reset();
m_data.transformedMasterKey = {};
m_data.hasKey = false;
return true;
}
if (updateTransformSalt) {
m_data.kdf->randomizeSeed();
Q_ASSERT(!m_data.kdf->seed().isEmpty());
@ -278,7 +295,7 @@ bool Database::setKey(const CompositeKey& key, bool updateChangedTime, bool upda
QByteArray oldTransformedMasterKey = m_data.transformedMasterKey;
QByteArray transformedMasterKey;
if (!key.transform(*m_data.kdf, transformedMasterKey)) {
if (!key->transform(*m_data.kdf, transformedMasterKey)) {
return false;
}
@ -301,14 +318,14 @@ bool Database::hasKey() const
return m_data.hasKey;
}
bool Database::verifyKey(const CompositeKey& key) const
bool Database::verifyKey(QSharedPointer<CompositeKey> key) const
{
Q_ASSERT(hasKey());
if (!m_data.challengeResponseKey.isEmpty()) {
QByteArray result;
if (!key.challenge(m_data.masterSeed, result)) {
if (!key->challenge(m_data.masterSeed, result)) {
// challenge failed, (YubiKey?) removed?
return false;
}
@ -319,7 +336,7 @@ bool Database::verifyKey(const CompositeKey& key) const
}
}
return (m_data.key.rawKey() == key.rawKey());
return (m_data.key->rawKey() == key->rawKey());
}
QVariantMap& Database::publicCustomData()
@ -430,12 +447,12 @@ void Database::startModifiedTimer()
m_timer->start(150);
}
const CompositeKey& Database::key() const
QSharedPointer<const CompositeKey> Database::key() const
{
return m_data.key;
}
Database* Database::openDatabaseFile(QString fileName, CompositeKey key)
Database* Database::openDatabaseFile(const QString& fileName, QSharedPointer<const CompositeKey> key)
{
QFile dbFile(fileName);
@ -461,7 +478,7 @@ Database* Database::openDatabaseFile(QString fileName, CompositeKey key)
Database* Database::unlockFromStdin(QString databaseFilename, QString keyFilename)
{
CompositeKey compositeKey;
auto compositeKey = QSharedPointer<CompositeKey>::create();
QTextStream outputTextStream(stdout);
QTextStream errorTextStream(stderr);
@ -469,19 +486,19 @@ Database* Database::unlockFromStdin(QString databaseFilename, QString keyFilenam
outputTextStream.flush();
QString line = Utils::getPassword();
PasswordKey passwordKey;
passwordKey.setPassword(line);
compositeKey.addKey(passwordKey);
auto passwordKey = QSharedPointer<PasswordKey>::create();
passwordKey->setPassword(line);
compositeKey->addKey(passwordKey);
if (!keyFilename.isEmpty()) {
FileKey fileKey;
auto fileKey = QSharedPointer<FileKey>::create();
QString errorMessage;
if (!fileKey.load(keyFilename, &errorMessage)) {
if (!fileKey->load(keyFilename, &errorMessage)) {
errorTextStream << QObject::tr("Failed to load key file %1: %2").arg(keyFilename, errorMessage);
errorTextStream << endl;
return nullptr;
}
compositeKey.addKey(fileKey);
compositeKey->addKey(fileKey);
}
return Database::openDatabaseFile(databaseFilename, compositeKey);
@ -607,7 +624,10 @@ bool Database::changeKdf(QSharedPointer<Kdf> kdf)
{
kdf->randomizeSeed();
QByteArray transformedMasterKey;
if (!m_data.key.transform(*kdf, transformedMasterKey)) {
if (!m_data.key) {
m_data.key = QSharedPointer<CompositeKey>::create();
}
if (!m_data.key->transform(*kdf, transformedMasterKey)) {
return false;
}