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path: root/lib/e2ee/qolmsession.cpp
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2022-09-26Trample Sonar warningsAlexey Rusakov
2022-09-26Wrap error reporting into facility macrosAlexey Rusakov
Facility macros to report Olm errors: QOLM_INTERNAL_ERROR[_X], QOLM_FAIL_OR_LOG[_X]
2022-09-26RandomBufferAlexey Rusakov
A convenient abstraction swallowing all the type casts and, more importantly, cleanup on destruction (previous code only cleaned up the buffer upon a successful call to Olm API but not upon an error).
2022-09-26Cleanup across E2EE codeAlexey Rusakov
Notably: - simplified unnecessarily verbose constructs; - formally aligned (no re-numeration was necessary) QOlmMessage::Type with corresponding OLM_ constants; - dropped QOlmSession::encryptMessageType() because it's very sensitive to the order of calling with QOlmSession::encrypt() (and encrypt() itself already calls it and returns the message type); - simplify the return type of pickle() calls that can only fail due to an internal error; - replace const QString& with QStringView or const QByteArray& where appropriate; - use '\0' where it was meant to be instead of '0'.
2022-09-26Replace QOlmError with OlmErrorCodeAlexey Rusakov
QOlmError represents a subset of OlmErrorCode, and the associated fromString() function uses undocumented strings produced inside Olm; meanwhile OlmErrorCode is documented in its own header file. Each QOlm* class now has lastErrorCode() next to lastError() (that, from now, returns a textual representation straight from Olm, not QOlmError enum). Also: including olm/error.h in e2ee/e2ee.h required some rearrangement of the code to make sure non-E2EE configuration still builds.
2022-05-29Move some Meg/Olm session logic from Room::Private to Connection::PrivateAlexey Rusakov
Functions (Room::Private::)createOlmSession, payloadForUserDevice and sendRoomKeyToDevices don't have a lot to do with the given Room object but deal with quite a few things stored in Connection. This commit moves them to Connection::Private, exposing sendSessionKeyToDevices (the new name for sendRoomKeyToDevices) in Connection so that Room could call it from Room::P::sendMegolmSession(). While moving these over, a few additional things were adjusted: - more functions marked as const - a few functions could be moved now from Connection to Connection::Private - false slots in Connection (such as picklingMode) are moved out of the slots block - keys.yml in Matrix CS API definitions has been adjusted to match the real structure of `/claim` response (see quotient-im/matrix-spec repo); csapi/keys.h has been regenerated accordingly.
2022-05-16QOlmExpected and associated refactoringAlexey Rusakov
As mentioned in the commit introducing `Expected`, `QOlmExpected` is simply an alias for `Expected<T, QOlmError>`. This simplifies quite a few function signatures in `QOlm*` classes and collapses unwieldy `std::holds_alternative<>`/`std::get<>` constructs into a neat contextual bool cast and an invocation of `operator*` or `value()`/`error()` accessors that don't need to specify the type. While refactoring the code, I found a couple of cases of mismatching `uint32_t` and `qint32_t` in return values; a couple of cases where `decrypt()` returns `QString` which is in fact `QByteArray` (e.g., in `QOlmSession::decrypt()`); there's a repetitive algorithm in `Connection::Private::sessionDecryptPrekey()` and `sessionDecryptGeneral()`
2022-05-16Simplify QOlmSession::matchesInboundSession*()Alexey Rusakov
There's no particular use in letting `QOlmError` out, only to confirm that, well, `QOlmError` is just another form of no-match.
2022-05-16Optimise #includes for QOlm* classesAlexey Rusakov
2021-12-25Apply suggestionsTobias Fella
2021-12-24Apply suggestionsTobias Fella
2021-12-07Rename "crypto" -> "e2ee"Tobias Fella