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Refactor Database and Database widgets (#2491)

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The Database, DatabaseWidget, and DatabaseTabWidget classes share many responsibilities in inconsistent ways resulting in impenetrable and unmaintainable code and a diverse set of bugs and architecture restrictions. This patch reworks the architecture, responsibilities of, and dependencies between these classes.

The core changes are:

* Move loading and saving logic from widgets into the Database class
* Get rid of the DatabaseManagerStruct and move all the information contained in it into the Database
* Let database objects keep track of modifications and dirty/clean state instead of handing this to external widgets
* Move GUI interactions for loading and saving from the DatabaseTabWidget into the DatabaseWidget (resolves #2494 as a side-effect)
* Heavily clean up DatabaseTabWidget and degrade it to a slightly glorified QTabWidget
* Use QSharedPointers for all Database objects
* Remove the modifiedImmediate signal and replace it with a markAsModified() method
* Implement proper tabName() method instead of reading back titles from GUI widgets (resolves #1389 and its duplicates #2146 #855)
* Fix unwanted AES-KDF downgrade if database uses Argon2 and has CustomData
* Improve code

This patch is also the first major step towards solving issues #476 and #2322.
This commit is contained in:
Janek Bevendorff 2018-11-22 11:47:31 +01:00 • committed by GitHub
parent 917c4cc18b
commit d612cad09a
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115 changed files with 2116 additions and 2165 deletions
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4
src/format/Kdbx4Writer.cpp
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@ -75,7 +75,7 @@ bool Kdbx4Writer::writeDatabase(QIODevice* device, Database* db)
CHECK_RETURN_FALSE(writeHeaderField<quint32>(&header, KeePass2::HeaderFieldID::CipherID, db->cipher().toRfc4122()));
CHECK_RETURN_FALSE(writeHeaderField<quint32>(&header, KeePass2::HeaderFieldID::CompressionFlags,
Endian::sizedIntToBytes(static_cast<int>(db->compressionAlgo()),
Endian::sizedIntToBytes(static_cast<int>(db->compressionAlgorithm()),
KeePass2::BYTEORDER)));
CHECK_RETURN_FALSE(writeHeaderField<quint32>(&header, KeePass2::HeaderFieldID::MasterSeed, masterSeed));
CHECK_RETURN_FALSE(writeHeaderField<quint32>(&header, KeePass2::HeaderFieldID::EncryptionIV, encryptionIV));
@ -138,7 +138,7 @@ bool Kdbx4Writer::writeDatabase(QIODevice* device, Database* db)
QIODevice* outputDevice = nullptr;
QScopedPointer<QtIOCompressor> ioCompressor;
if (db->compressionAlgo() == Database::CompressionNone) {
if (db->compressionAlgorithm() == Database::CompressionNone) {
outputDevice = cipherStream.data();
} else {
ioCompressor.reset(new QtIOCompressor(cipherStream.data()));