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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 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/>.
*
*/
#include "backends/networking/sdl_net/handlers/downloadfilehandler.h"
#include "backends/networking/sdl_net/getclienthandler.h"
#include "backends/networking/sdl_net/handlerutils.h"
#include "backends/networking/sdl_net/localwebserver.h"
#include "common/translation.h"
namespace Networking {
DownloadFileHandler::DownloadFileHandler() {}
DownloadFileHandler::~DownloadFileHandler() {}
/// public
void DownloadFileHandler::handle(Client &client) {
Common::String path = client.queryParameter("path");
// check that <path> is not an absolute root
if (path == "" || path == "/") {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Invalid path!")));
return;
}
// check that <path> contains no '../'
if (HandlerUtils::hasForbiddenCombinations(path)) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Invalid path!")));
return;
}
// transform virtual path to actual file system one
Common::String basePath;
Common::Path baseFSPath, fsPath;
if (!urlToPath(path, fsPath, basePath, baseFSPath, false) || path.empty()) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Invalid path!")));
return;
}
// check that <path> exists, is directory and isn't forbidden
Common::FSNode node(fsPath);
if (!HandlerUtils::permittedPath(node.getPath())) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Invalid path!")));
return;
}
if (!node.exists()) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("The file doesn't exist!")));
return;
}
if (node.isDirectory()) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Can't download a directory!")));
return;
}
Common::SeekableReadStream *stream = node.createReadStream();
if (stream == nullptr) {
HandlerUtils::setFilesManagerErrorMessageHandler(client, Common::convertFromU32String(_("Failed to read the file!")));
return;
}
GetClientHandler *handler = new GetClientHandler(stream);
handler->setResponseCode(200);
handler->setHeader("Content-Type", "application/force-download");
handler->setHeader("Content-Disposition", "attachment; filename=\"" + node.getName() + "\"");
handler->setHeader("Content-Transfer-Encoding", "binary");
client.setHandler(handler);
}
} // End of namespace Networking
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