Merge pull request #788 from Tkachov/cloud

ALL: Add Cloud storage support

1 files changed, 190 insertions, 0 deletions

diff --git a/backends/networking/sdl_net/client.cpp b/backends/networking/sdl_net/client.cpp
new file mode 100644
index 0000000000..dab38ba5c0
--- /dev/null
+++ b/backends/networking/sdl_net/client.cpp
@@ -0,0 +1,190 @@
+/* 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/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