94 lines
2.3 KiB
C++
94 lines
2.3 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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#pragma once
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#include "mtproto/auth_key.h"
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#include "mtproto/connection_abstract.h"
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#include "base/timer.h"
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namespace MTP {
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namespace internal {
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class TcpConnection : public AbstractConnection {
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public:
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TcpConnection(
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QThread *thread,
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const ProxyData &proxy);
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ConnectionPointer clone(const ProxyData &proxy) override;
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TimeMs pingTime() const override;
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TimeMs fullConnectTimeout() const override;
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void sendData(mtpBuffer &buffer) override;
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void disconnectFromServer() override;
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void connectToServer(
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const QString &address,
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int port,
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const bytes::vector &protocolSecret,
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int16 protocolDcId) override;
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bool isConnected() const override;
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int32 debugState() const override;
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QString transport() const override;
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QString tag() const override;
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private:
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enum class Status {
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Waiting = 0,
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Ready,
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Finished,
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};
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static constexpr auto kShortBufferSize = 65535; // Of ints, 256 kb.
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void socketRead();
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void writeConnectionStart();
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void socketPacket(const char *packet, uint32 length);
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void socketConnected();
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void socketDisconnected();
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void socketError(QAbstractSocket::SocketError e);
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mtpBuffer handleResponse(const char *packet, uint32 length);
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static void handleError(QAbstractSocket::SocketError e, QTcpSocket &sock);
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static uint32 fourCharsToUInt(char ch1, char ch2, char ch3, char ch4) {
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char ch[4] = { ch1, ch2, ch3, ch4 };
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return *reinterpret_cast<uint32*>(ch);
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}
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void sendBuffer(mtpBuffer &buffer);
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QTcpSocket _socket;
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uint32 _packetIndex = 0; // sent packet number
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uint32 _packetRead = 0;
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uint32 _packetLeft = 0; // reading from socket
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bool _readingToShort = true;
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mtpBuffer _longBuffer;
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mtpPrime _shortBuffer[kShortBufferSize];
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char *_currentPosition = nullptr;
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uchar _sendKey[CTRState::KeySize];
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CTRState _sendState;
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uchar _receiveKey[CTRState::KeySize];
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CTRState _receiveState;
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int16 _protocolDcId = 0;
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bytes::vector _protocolSecret;
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Status _status = Status::Waiting;
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MTPint128 _checkNonce;
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QString _address;
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int32 _port = 0;
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TimeMs _pingTime = 0;
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};
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} // namespace internal
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} // namespace MTP
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