112 lines
2.8 KiB
C++
112 lines
2.8 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/dc_options.h"
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#include "base/bytes.h"
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namespace MTP {
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namespace internal {
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struct ConnectionOptions;
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class AbstractConnection;
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class ConnectionPointer {
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public:
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ConnectionPointer();
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ConnectionPointer(std::nullptr_t);
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explicit ConnectionPointer(AbstractConnection *value);
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ConnectionPointer(ConnectionPointer &&other);
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ConnectionPointer &operator=(ConnectionPointer &&other);
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AbstractConnection *get() const;
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void reset(AbstractConnection *value = nullptr);
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operator AbstractConnection*() const;
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AbstractConnection *operator->() const;
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AbstractConnection &operator*() const;
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explicit operator bool() const;
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~ConnectionPointer();
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private:
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AbstractConnection *_value = nullptr;
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};
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class AbstractConnection : public QObject {
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Q_OBJECT
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public:
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AbstractConnection(QThread *thread);
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AbstractConnection(const AbstractConnection &other) = delete;
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AbstractConnection &operator=(const AbstractConnection &other) = delete;
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virtual ~AbstractConnection() = 0;
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// virtual constructor
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static ConnectionPointer create(
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DcOptions::Variants::Protocol protocol,
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QThread *thread);
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void setSentEncrypted() {
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_sentEncrypted = true;
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}
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virtual void setProxyOverride(const ProxyData &proxy) = 0;
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virtual TimeMs pingTime() const = 0;
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virtual void sendData(mtpBuffer &buffer) = 0; // has size + 3, buffer[0] = len, buffer[1] = packetnum, buffer[last] = crc32
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virtual void disconnectFromServer() = 0;
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virtual void connectToServer(
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const QString &ip,
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int port,
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const bytes::vector &protocolSecret,
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int16 protocolDcId) = 0;
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virtual bool isConnected() const = 0;
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virtual bool usingHttpWait() {
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return false;
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}
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virtual bool needHttpWait() {
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return false;
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}
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virtual int32 debugState() const = 0;
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virtual QString transport() const = 0;
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virtual QString tag() const = 0;
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using BuffersQueue = std::deque<mtpBuffer>;
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BuffersQueue &received() {
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return _receivedQueue;
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}
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// Used to emit error(...) with no real code from the server.
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static constexpr auto kErrorCodeOther = -499;
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signals:
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void receivedData();
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void receivedSome(); // to stop restart timer
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void error(qint32 errorCodebool);
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void connected();
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void disconnected();
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protected:
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BuffersQueue _receivedQueue; // list of received packets, not processed yet
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bool _sentEncrypted = false;
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int _pingTime = 0;
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// first we always send fake MTPReq_pq to see if connection works at all
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// we send them simultaneously through TCP/HTTP/IPv4/IPv6 to choose the working one
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static mtpBuffer preparePQFake(const MTPint128 &nonce);
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static MTPResPQ readPQFakeReply(const mtpBuffer &buffer);
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};
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} // namespace internal
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} // namespace MTP
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