client.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef BACKENDS_NETWORKING_SDL_NET_CLIENT_H
#define BACKENDS_NETWORKING_SDL_NET_CLIENT_H

#include "backends/networking/sdl_net/reader.h"
#include "common/str.h"

namespace Common {
class MemoryReadWriteStream;
}

typedef struct _SDLNet_SocketSet *SDLNet_SocketSet;
typedef struct _TCPsocket *TCPsocket;

namespace Networking {

enum ClientState {
    INVALID,
    READING_HEADERS,
    READ_HEADERS,
    BAD_REQUEST,
    BEING_HANDLED
};

class Client;

#define CLIENT_BUFFER_SIZE 1 * 1024 * 1024

class ClientHandler {
public:
    virtual ~ClientHandler() {};
    virtual void handle(Client *client) = 0;
};

class Client {
    ClientState _state;
    SDLNet_SocketSet _set;
    TCPsocket _socket;
    Reader _reader;
    ClientHandler *_handler, *_previousHandler;
    Common::MemoryReadWriteStream *_stream;
    byte *_buffer;

    bool readMoreIfNeeded();

public:
    Client();
    Client(SDLNet_SocketSet set, TCPsocket socket);
    virtual ~Client();

    void open(SDLNet_SocketSet set, TCPsocket socket);
    void readHeaders();
    bool readContent(Common::WriteStream *stream);
    bool readFirstContent(Common::WriteStream *stream);
    bool readBlockHeaders(Common::WriteStream *stream);
    bool readBlockContent(Common::WriteStream *stream);
    void setHandler(ClientHandler *handler);
    void handle();
    void close();

    ClientState state() const;
    Common::String headers() const;
    Common::String method() const;
    Common::String path() const;
    Common::String query() const;
    Common::String queryParameter(const Common::String &name) const;
    Common::String anchor() const;

    bool noMoreContent() const;

    bool socketIsReady();
    int recv(void *data, int maxlen);
    int send(void *data, int len);
};

} // End of namespace Networking

#endif