Method readMapWith

Telegram/SourceFiles/storage/storage_account.cpp:306–583

}

Account::ReadMapResult Account::readMapWith(
		MTP::AuthKeyPtr localKey,
		const QByteArray &legacyPasscode) {
	auto ms = crl::now();

	FileReadDescriptor mapData;
	if (!ReadFile(mapData, u"map"_q, _basePath)) {
		return ReadMapResult::Failed;
	}
	LOG(("App Info: reading map..."));

	QByteArray legacySalt, legacyKeyEncrypted, mapEncrypted;
	mapData.stream >> legacySalt >> legacyKeyEncrypted >> mapEncrypted;
	if (!CheckStreamStatus(mapData.stream)) {
		return ReadMapResult::Failed;
	}
	if (!localKey) {
		if (legacySalt.size() != LocalEncryptSaltSize) {
			LOG(("App Error: bad salt in map file, size: %1").arg(legacySalt.size()));
			return ReadMapResult::Failed;
		}
		auto legacyPasscodeKey = CreateLegacyLocalKey(legacyPasscode, legacySalt);

		EncryptedDescriptor keyData;
		if (!DecryptLocal(keyData, legacyKeyEncrypted, legacyPasscodeKey)) {
			LOG(("App Info: could not decrypt pass-protected key from map file, maybe bad password..."));
			return ReadMapResult::IncorrectPasscode;
		}
		auto key = Serialize::read<MTP::AuthKey::Data>(keyData.stream);
		if (keyData.stream.status() != QDataStream::Ok || !keyData.stream.atEnd()) {
			LOG(("App Error: could not read pass-protected key from map file"));
			return ReadMapResult::Failed;
		}
		localKey = std::make_shared<MTP::AuthKey>(key);
	}

	EncryptedDescriptor map;
	if (!DecryptLocal(map, mapEncrypted, localKey)) {
		LOG(("App Error: could not decrypt map."));
		return ReadMapResult::Failed;
	}
	LOG(("App Info: reading encrypted map..."));

	QByteArray selfSerialized;
	base::flat_map<PeerId, FileKey> draftsMap;
	base::flat_map<PeerId, FileKey> draftCursorsMap;
	base::flat_map<PeerId, bool> draftsNotReadMap;
	base::flat_map<PeerId, FileKey> botStoragesMap;
	base::flat_map<PeerId, bool> botStoragesNotReadMap;
	quint64 prefsKey = 0, locationsKey = 0, reportSpamStatusesKey = 0, trustedPeersKey = 0;
	quint64 recentStickersKeyOld = 0;
	quint64 installedStickersKey = 0, featuredStickersKey = 0, recentStickersKey = 0, favedStickersKey = 0, archivedStickersKey = 0;
	quint64 installedMasksKey = 0, recentMasksKey = 0, archivedMasksKey = 0;
	quint64 installedCustomEmojiKey = 0, featuredCustomEmojiKey = 0, archivedCustomEmojiKey = 0;
	quint64 savedGifsKey = 0;
	quint64 legacyBackgroundKeyDay = 0, legacyBackgroundKeyNight = 0;
	quint64 userSettingsKey = 0, recentHashtagsAndBotsKey = 0, exportSettingsKey = 0;
	quint64 searchSuggestionsKey = 0;