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Telegram/SourceFiles/storage/storage_domain.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+namespace MTP {
+class Config;
+class AuthKey;
+using AuthKeyPtr = std::shared_ptr<AuthKey>;
+} // namespace MTP
+
+namespace Main {
+class Account;
+class Domain;
+} // namespace Main
+
+namespace Storage {
+
+enum class StartResult : uchar {
+	Success,
+	IncorrectPasscode,
+	IncorrectPasscodeLegacy,
+};
+
+class Domain final {
+public:
+	Domain(not_null<Main::Domain*> owner, const QString &dataName);
+	~Domain();
+
+	[[nodiscard]] StartResult start(const QByteArray &passcode);
+	void startAdded(
+		not_null<Main::Account*> account,
+		std::unique_ptr<MTP::Config> config);
+	void writeAccounts();
+	void startFromScratch();
+
+	[[nodiscard]] bool checkPasscode(const QByteArray &passcode) const;
+	void setPasscode(const QByteArray &passcode);
+
+	[[nodiscard]] int oldVersion() const;
+	void clearOldVersion();
+
+	[[nodiscard]] rpl::producer<> localPasscodeChanged() const;
+	[[nodiscard]] bool hasLocalPasscode() const;
+
+private:
+	enum class StartModernResult {
+		Success,
+		IncorrectPasscode,
+		Failed,
+		Empty,
+	};
+
+	[[nodiscard]] StartModernResult startModern(const QByteArray &passcode);
+	void startWithSingleAccount(
+		const QByteArray &passcode,
+		std::unique_ptr<Main::Account> account);
+	void generateLocalKey();
+	void encryptLocalKey(const QByteArray &passcode);
+
+	const not_null<Main::Domain*> _owner;
+	const QString _dataName;
+
+	MTP::AuthKeyPtr _localKey;
+	MTP::AuthKeyPtr _passcodeKey;
+	QByteArray _passcodeKeySalt;
+	QByteArray _passcodeKeyEncrypted;
+	int _oldVersion = 0;
+
+	bool _hasLocalPasscode = false;
+	rpl::event_stream<> _passcodeKeyChanged;
+
+};
+
+} // namespace Storage