156 lines
4.1 KiB
C++
156 lines
4.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "mtproto/details/mtproto_tcp_socket.h"
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#include "base/invoke_queued.h"
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namespace MTP::details {
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TcpSocket::TcpSocket(not_null<QThread*> thread, const QNetworkProxy &proxy)
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: AbstractSocket(thread) {
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_socket.moveToThread(thread);
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_socket.setProxy(proxy);
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const auto wrap = [&](auto handler) {
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return [=](auto &&...args) {
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InvokeQueued(this, [=] { handler(args...); });
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};
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};
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using Error = QAbstractSocket::SocketError;
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connect(
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&_socket,
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&QTcpSocket::connected,
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wrap([=] { _connected.fire({}); }));
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connect(
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&_socket,
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&QTcpSocket::disconnected,
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wrap([=] { _disconnected.fire({}); }));
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connect(
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&_socket,
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&QTcpSocket::readyRead,
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wrap([=] { _readyRead.fire({}); }));
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using ErrorSignal = void(QTcpSocket::*)(QAbstractSocket::SocketError);
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const auto QTcpSocket_error = ErrorSignal(&QAbstractSocket::error);
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connect(
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&_socket,
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QTcpSocket_error,
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wrap([=](Error e) { handleError(e); }));
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}
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void TcpSocket::connectToHost(const QString &address, int port) {
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_socket.connectToHost(address, port);
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}
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bool TcpSocket::isGoodStartNonce(bytes::const_span nonce) {
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Expects(nonce.size() >= 2 * sizeof(uint32));
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const auto bytes = nonce.data();
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const auto zero = *reinterpret_cast<const uchar*>(bytes);
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const auto first = *reinterpret_cast<const uint32*>(bytes);
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const auto second = *(reinterpret_cast<const uint32*>(bytes) + 1);
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const auto reserved01 = 0x000000EFU;
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const auto reserved11 = 0x44414548U;
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const auto reserved12 = 0x54534F50U;
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const auto reserved13 = 0x20544547U;
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const auto reserved14 = 0xEEEEEEEEU;
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const auto reserved15 = 0xDDDDDDDDU;
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const auto reserved16 = 0x02010316U;
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const auto reserved21 = 0x00000000U;
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return (zero != reserved01)
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&& (first != reserved11)
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&& (first != reserved12)
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&& (first != reserved13)
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&& (first != reserved14)
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&& (first != reserved15)
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&& (first != reserved16)
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&& (second != reserved21);
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}
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void TcpSocket::timedOut() {
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}
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bool TcpSocket::isConnected() {
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return (_socket.state() == QAbstractSocket::ConnectedState);
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}
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bool TcpSocket::hasBytesAvailable() {
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return _socket.bytesAvailable() > 0;
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}
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int64 TcpSocket::read(bytes::span buffer) {
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return _socket.read(
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reinterpret_cast<char*>(buffer.data()),
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buffer.size());
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}
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void TcpSocket::write(bytes::const_span prefix, bytes::const_span buffer) {
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Expects(!buffer.empty());
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if (!prefix.empty()) {
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_socket.write(
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reinterpret_cast<const char*>(prefix.data()),
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prefix.size());
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}
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_socket.write(
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reinterpret_cast<const char*>(buffer.data()),
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buffer.size());
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}
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int32 TcpSocket::debugState() {
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return _socket.state();
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}
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void TcpSocket::LogError(int errorCode, const QString &errorText) {
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switch (errorCode) {
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case QAbstractSocket::ConnectionRefusedError:
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LOG(("TCP Error: socket connection refused - %1").arg(errorText));
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break;
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case QAbstractSocket::RemoteHostClosedError:
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TCP_LOG(("TCP Info: remote host closed socket connection - %1"
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).arg(errorText));
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break;
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case QAbstractSocket::HostNotFoundError:
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LOG(("TCP Error: host not found - %1").arg(errorText));
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break;
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case QAbstractSocket::SocketTimeoutError:
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LOG(("TCP Error: socket timeout - %1").arg(errorText));
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break;
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case QAbstractSocket::NetworkError:
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LOG(("TCP Error: network - %1").arg(errorText));
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break;
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case QAbstractSocket::ProxyAuthenticationRequiredError:
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case QAbstractSocket::ProxyConnectionRefusedError:
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case QAbstractSocket::ProxyConnectionClosedError:
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case QAbstractSocket::ProxyConnectionTimeoutError:
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case QAbstractSocket::ProxyNotFoundError:
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case QAbstractSocket::ProxyProtocolError:
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LOG(("TCP Error: proxy (%1) - %2").arg(errorCode).arg(errorText));
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break;
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default:
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LOG(("TCP Error: other (%1) - %2").arg(errorCode).arg(errorText));
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break;
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}
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TCP_LOG(("TCP Error %1, restarting! - %2"
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).arg(errorCode
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).arg(errorText));
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}
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void TcpSocket::handleError(int errorCode) {
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LogError(errorCode, _socket.errorString());
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_error.fire({});
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}
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} // namespace MTP::details
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