CLOUD: Add UploadFileClientHandler

Now Client reads the first headers block, then LocalWebserver decides
which Handler to use. In case of "/upload", UploadFileHandler is used.

But now it only knows the "path" parameter. If that's valid, actual
UploadFileClientHandler is created, which reads the contents of the
request and, when finds there  an "upload_file" field, starts saving it
in the directory specified by "path".

With that we don't need temp files approach from Reader class.

1 files changed, 57 insertions, 0 deletions

diff --git a/backends/networking/sdl_net/uploadfileclienthandler.h b/backends/networking/sdl_net/uploadfileclienthandler.h
new file mode 100644
index 0000000000..4f2ce621fb
--- /dev/null
+++ b/backends/networking/sdl_net/uploadfileclienthandler.h
@@ -0,0 +1,57 @@
+/* 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.
+*
+*/
+
+#ifndef BACKENDS_NETWORKING_SDL_NET_UPLOADFILECLIENTHANDLER_H
+#define BACKENDS_NETWORKING_SDL_NET_UPLOADFILECLIENTHANDLER_H
+
+#include "backends/networking/sdl_net/client.h"
+#include "common/stream.h"
+
+namespace Networking {
+
+enum UploadFileHandlerState {
+	UFH_READING_CONTENT,
+	UFH_READING_BLOCK_HEADERS,
+	UFH_READING_BLOCK_CONTENT,
+	UFH_ERROR
+};
+
+class UploadFileClientHandler: public ClientHandler {
+	UploadFileHandlerState _state;
+	Common::MemoryReadWriteStream *_headersStream;
+	Common::WriteStream *_contentStream;
+	Common::String _parentDirectoryPath;
+
+	void handleBlockHeaders(Client *client);
+	bool validFilename(Client &client, Common::String filename, Common::String &errorMessage);
+	void setErrorMessageHandler(Client &client, Common::String message);
+
+public:
+	UploadFileClientHandler(Common::String parentDirectoryPath);
+	virtual ~UploadFileClientHandler();
+
+	virtual void handle(Client *client);
+};
+
+} // End of namespace Networking
+
+#endif