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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/networking/sdl_net/client.h"
#include "backends/networking/sdl_net/localwebserver.h"
#include "common/memstream.h"
#include <SDL_net.h>
namespace Networking {
Client::Client():
_state(INVALID), _set(nullptr), _socket(nullptr), _handler(nullptr),
_previousHandler(nullptr), _stream(nullptr), _buffer(new byte[CLIENT_BUFFER_SIZE]) {}
Client::Client(SDLNet_SocketSet set, TCPsocket socket):
_state(INVALID), _set(nullptr), _socket(nullptr), _handler(nullptr),
_previousHandler(nullptr), _stream(nullptr), _buffer(new byte[CLIENT_BUFFER_SIZE]) {
open(set, socket);
}
Client::~Client() {
close();
delete[] _buffer;
}
void Client::open(SDLNet_SocketSet set, TCPsocket socket) {
if (_state != INVALID)
close();
_state = READING_HEADERS;
_socket = socket;
_set = set;
Reader cleanReader;
_reader = cleanReader;
if (_handler)
delete _handler;
_handler = nullptr;
if (_previousHandler)
delete _previousHandler;
_previousHandler = nullptr;
_stream = new Common::MemoryReadWriteStream(DisposeAfterUse::YES);
if (set) {
int numused = SDLNet_TCP_AddSocket(set, socket);
if (numused == -1) {
error("Client: SDLNet_AddSocket: %s\n", SDLNet_GetError());
}
}
}
bool Client::readMoreIfNeeded() {
if (_stream == nullptr)
return false; //nothing to read into
if (_stream->size() - _stream->pos() > 0)
return true; //not needed, some data left in the stream
if (!_socket)
return false;
if (!SDLNet_SocketReady(_socket))
return false;
int bytes = SDLNet_TCP_Recv(_socket, _buffer, CLIENT_BUFFER_SIZE);
if (bytes <= 0) {
warning("Client::readMoreIfNeeded: recv fail");
close();
return false;
}
if (_stream->write(_buffer, bytes) != bytes) {
warning("Client::readMoreIfNeeded: failed to write() into MemoryReadWriteStream");
close();
return false;
}
return true;
}
void Client::readHeaders() {
if (!readMoreIfNeeded())
return;
_reader.setContent(_stream);
if (_reader.readFirstHeaders())
_state = (_reader.badRequest() ? BAD_REQUEST : READ_HEADERS);
}
bool Client::readContent(Common::WriteStream *stream) {
if (!readMoreIfNeeded())
return false;
_reader.setContent(_stream);
return _reader.readFirstContent(stream);
}
bool Client::readBlockHeaders(Common::WriteStream *stream) {
if (!readMoreIfNeeded())
return false;
_reader.setContent(_stream);
return _reader.readBlockHeaders(stream);
}
bool Client::readBlockContent(Common::WriteStream *stream) {
if (!readMoreIfNeeded())
return false;
_reader.setContent(_stream);
return _reader.readBlockContent(stream);
}
void Client::setHandler(ClientHandler *handler) {
if (_handler) {
if (_previousHandler)
delete _previousHandler;
_previousHandler = _handler; //can't just delete it, as setHandler() could've been called by handler itself
}
_state = BEING_HANDLED;
_handler = handler;
}
void Client::handle() {
if (_state != BEING_HANDLED)
warning("handle() called in a wrong Client's state");
if (!_handler)
warning("Client doesn't have handler to be handled by");
if (_handler)
_handler->handle(this);
}
void Client::close() {
if (_set) {
if (_socket) {
int numused = SDLNet_TCP_DelSocket(_set, _socket);
if (numused == -1)
error("Client: SDLNet_DelSocket: %s\n", SDLNet_GetError());
}
_set = nullptr;
}
if (_socket) {
SDLNet_TCP_Close(_socket);
_socket = nullptr;
}
if (_stream) {
delete _stream;
_stream = nullptr;
}
_state = INVALID;
}
ClientState Client::state() const { return _state; }
Common::String Client::headers() const { return _reader.headers(); }
Common::String Client::method() const { return _reader.method(); }
Common::String Client::path() const { return _reader.path(); }
Common::String Client::query() const { return _reader.query(); }
Common::String Client::queryParameter(Common::String name) const { return _reader.queryParameter(name); }
Common::String Client::anchor() const { return _reader.anchor(); }
bool Client::noMoreContent() const { return _reader.noMoreContent(); }
bool Client::socketIsReady() { return SDLNet_SocketReady(_socket); }
int Client::recv(void *data, int maxlen) { return SDLNet_TCP_Recv(_socket, data, maxlen); }
int Client::send(void *data, int len) { return SDLNet_TCP_Send(_socket, data, len); }
} // End of namespace Networking
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