FtpServerConnection.h

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/****
 * Sming Framework Project - Open Source framework for high efficiency native ESP8266 development.
 * Created 2015 by Skurydin Alexey
 * http://github.com/SmingHub/Sming
 * All files of the Sming Core are provided under the LGPL v3 license.
 *
 * FtpServerConnection.h
 *
 ****/

#pragma once

#include "Network/TcpConnection.h"
#include "IpAddress.h"
#include "WString.h"

class FtpServer;

class FtpServerConnection : public TcpConnection
{
    friend class FtpDataStream;
    friend class FtpServer;

public:
    static constexpr size_t MAX_FTP_CMD{255};

    FtpServerConnection(FtpServer& parentServer, tcp_pcb* clientTcp)
        : TcpConnection(clientTcp, true), server(parentServer)
    {
    }

    err_t onReceive(pbuf* buf) override;
    err_t onSent(uint16_t len) override;
    void onReadyToSendData(TcpConnectionEvent sourceEvent) override;

    void dataTransferFinished(TcpConnection* connection);

protected:
    virtual void onCommand(String cmd, String data);
    virtual void response(int code, String text = "");

    void cmdPort(const String& data);
    void createDataConnection(TcpConnection* connection);

    bool isCanTransfer()
    {
        return canTransfer;
    }

private:
    enum class State {
        Ready,
        Authorization,
        Active,
    };

    FtpServer& server;
    State state{State::Ready};
    String userName;
    String renameFrom;

    IpAddress ip;
    int port{0};
    TcpConnection* dataConnection{nullptr};
    bool canTransfer{true};
};

typedef FtpServerConnection FTPServerConnection SMING_DEPRECATED; // @deprecated Use `FtpServerConnection` instead