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Telegram/SourceFiles/mtproto/details/mtproto_bound_key_creator.cpp

@@ -0,0 +1,92 @@
+/*
+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
+*/
+#include "mtproto/details/mtproto_bound_key_creator.h"
+
+#include "mtproto/details/mtproto_serialized_request.h"
+
+namespace MTP::details {
+
+BoundKeyCreator::BoundKeyCreator(DcKeyRequest request, Delegate delegate)
+: _request(request)
+, _delegate(std::move(delegate)) {
+}
+
+void BoundKeyCreator::start(
+		DcId dcId,
+		int16 protocolDcId,
+		not_null<AbstractConnection*> connection,
+		not_null<DcOptions*> dcOptions) {
+	Expects(!_creator.has_value());
+
+	auto delegate = DcKeyCreator::Delegate();
+	delegate.done = _delegate.unboundReady;
+	delegate.sentSome = _delegate.sentSome;
+	delegate.receivedSome = _delegate.receivedSome;
+
+	_creator.emplace(
+		dcId,
+		protocolDcId,
+		connection,
+		dcOptions,
+		std::move(delegate),
+		_request);
+}
+
+void BoundKeyCreator::stop() {
+	_creator = std::nullopt;
+}
+
+void BoundKeyCreator::bind(AuthKeyPtr &&persistentKey) {
+	stop();
+	_binder.emplace(std::move(persistentKey));
+}
+
+void BoundKeyCreator::restartBinder() {
+	if (_binder) {
+		_binder.emplace(_binder->persistentKey());
+	}
+}
+
+bool BoundKeyCreator::readyToBind() const {
+	return _binder.has_value();
+}
+
+SerializedRequest BoundKeyCreator::prepareBindRequest(
+		const AuthKeyPtr &temporaryKey,
+		uint64 sessionId) {
+	Expects(_binder.has_value());
+
+	return _binder->prepareRequest(temporaryKey, sessionId);
+}
+
+DcKeyBindState BoundKeyCreator::handleBindResponse(
+		const mtpBuffer &response) {
+	Expects(_binder.has_value());
+
+	return _binder->handleResponse(response);
+}
+
+AuthKeyPtr BoundKeyCreator::bindPersistentKey() const {
+	Expects(_binder.has_value());
+
+	return _binder->persistentKey();
+}
+
+bool IsDestroyedTemporaryKeyError(const mtpBuffer &buffer) {
+	auto from = buffer.data();
+	auto error = MTPRpcError();
+	if (!error.read(from, from + buffer.size())) {
+		return false;
+	}
+	return error.match([&](const MTPDrpc_error &data) {
+		return (data.verror_code().v == 401)
+			&& (data.verror_message().v == "AUTH_KEY_PERM_EMPTY");
+	});
+}
+
+} // namespace MTP::details