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client.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef BACKENDS_NETWORKING_SDL_NET_CLIENT_H
00024 #define BACKENDS_NETWORKING_SDL_NET_CLIENT_H
00025 
00026 #include "backends/networking/sdl_net/reader.h"
00027 #include "common/str.h"
00028 
00029 namespace Common {
00030 class MemoryReadWriteStream;
00031 }
00032 
00033 typedef struct _SDLNet_SocketSet *SDLNet_SocketSet;
00034 typedef struct _TCPsocket *TCPsocket;
00035 
00036 namespace Networking {
00037 
00038 enum ClientState {
00039     INVALID,
00040     READING_HEADERS,
00041     READ_HEADERS,
00042     BAD_REQUEST,
00043     BEING_HANDLED
00044 };
00045 
00046 class Client;
00047 
00048 #define CLIENT_BUFFER_SIZE 1 * 1024 * 1024
00049 
00050 class ClientHandler {
00051 public:
00052     virtual ~ClientHandler() {};
00053     virtual void handle(Client *client) = 0;
00054 };
00055 
00076 class Client {
00077     ClientState _state;
00078     SDLNet_SocketSet _set;
00079     TCPsocket _socket;
00080     Reader _reader;
00081     ClientHandler *_handler, *_previousHandler;
00082     Common::MemoryReadWriteStream *_stream;
00083     byte *_buffer;
00084 
00085     bool readMoreIfNeeded();
00086 
00087 public:
00088     Client();
00089     Client(SDLNet_SocketSet set, TCPsocket socket);
00090     virtual ~Client();
00091 
00092     void open(SDLNet_SocketSet set, TCPsocket socket);
00093     void readHeaders();
00094     bool readContent(Common::WriteStream *stream);
00095     bool readBlockHeaders(Common::WriteStream *stream);
00096     bool readBlockContent(Common::WriteStream *stream);
00097     void setHandler(ClientHandler *handler);
00098     void handle();
00099     void close();
00100 
00101     ClientState state() const;
00102     Common::String headers() const;
00103     Common::String method() const;
00104     Common::String path() const;
00105     Common::String query() const;
00106     Common::String queryParameter(Common::String name) const;
00107     Common::String anchor() const;
00108 
00109     bool noMoreContent() const;
00110 
00118     bool socketIsReady();
00119     int recv(void *data, int maxlen);
00120     int send(void *data, int len);
00121 };
00122 
00123 } // End of namespace Networking
00124 
00125 #endif


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