diff options
author | Alexander Tkachev | 2016-07-06 19:09:29 +0600 |
---|---|---|
committer | Alexander Tkachev | 2016-08-24 16:07:55 +0600 |
commit | b40bfaa046370a2eeadcce1236f518315e8ada01 (patch) | |
tree | f845449a173a05bbf86ac94974a8d6575c68164c /backends/networking/sdl_net/handlers | |
parent | 8a9d126152f3e0ed1e91daa15dd90f0c18060492 (diff) | |
download | scummvm-rg350-b40bfaa046370a2eeadcce1236f518315e8ada01.tar.gz scummvm-rg350-b40bfaa046370a2eeadcce1236f518315e8ada01.tar.bz2 scummvm-rg350-b40bfaa046370a2eeadcce1236f518315e8ada01.zip |
CLOUD: Add "/download" handler
Now one can download files from the device through browser!
Diffstat (limited to 'backends/networking/sdl_net/handlers')
4 files changed, 165 insertions, 3 deletions
diff --git a/backends/networking/sdl_net/handlers/downloadfilehandler.cpp b/backends/networking/sdl_net/handlers/downloadfilehandler.cpp new file mode 100644 index 0000000000..59eb7dfcb3 --- /dev/null +++ b/backends/networking/sdl_net/handlers/downloadfilehandler.cpp @@ -0,0 +1,111 @@ +/* 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. +* +*/ + +#include "backends/networking/sdl_net/handlers/downloadfilehandler.h" +#include "backends/networking/sdl_net/localwebserver.h" +#include "backends/fs/fs-factory.h" +#include "common/file.h" +#include "common/translation.h" +#include "../getclienthandler.h" + +namespace Networking { + +#define INDEX_PAGE_NAME ".index.html" + +DownloadFileHandler::DownloadFileHandler() {} + +DownloadFileHandler::~DownloadFileHandler() {} + +void DownloadFileHandler::handle(Client &client) { + Common::String path = client.queryParameter("path"); + Common::String errorMessage = ""; + + // show an error message if failed to download the file + if (!downloadFile(client, path, errorMessage)) { + handleErrorMessage( + client, + Common::String::format( + "%s<br/><a href=\"files?path=/\">%s</a>", + errorMessage.c_str(), + _("Back to the files manager") + ) + ); + } +} + +void DownloadFileHandler::handleErrorMessage(Client &client, Common::String message) { + Common::String response = "<html><head><title>ScummVM</title></head><body>{message}</body></html>"; + + // load stylish response page from the archive + Common::SeekableReadStream *const stream = getArchiveFile(INDEX_PAGE_NAME); + if (stream) response = readEverythingFromStream(stream); + + replace(response, "{message}", message); + LocalWebserver::setClientGetHandler(client, response); +} + +bool DownloadFileHandler::downloadFile(Client &client, Common::String path, Common::String &errorMessage) { + // check that <path> is not an absolute root + if (path == "" || path == "/") { + errorMessage = _("Invalid path!"); + return false; + } + + // transform virtual path to actual file system one + Common::String prefixToRemove = "", prefixToAdd = ""; + if (!transformPath(path, prefixToRemove, prefixToAdd, false) || path.empty()) { + errorMessage = _("Invalid path!"); + return false; + } + + // check that <path> exists and is directory + AbstractFSNode *node = g_system->getFilesystemFactory()->makeFileNodePath(path); + if (!node->exists()) { + errorMessage = _("The file doesn't exist!"); + return false; + } + if (node->isDirectory()) { + errorMessage = _("Can't download a directory!"); + return false; + } + Common::SeekableReadStream *stream = node->createReadStream(); + if (stream == nullptr) { + errorMessage = _("Failed to read the file!"); + return false; + } + + GetClientHandler *handler = new GetClientHandler(stream); + handler->setResponseCode(200); + handler->setHeader("Content-Type", "application/force-download"); + handler->setHeader("Content-Disposition", "attachment; filename=\"" + node->getDisplayName() + "\""); + handler->setHeader("Content-Transfer-Encoding", "binary"); + client.setHandler(handler); + return true; +} + +/// public + +ClientHandlerCallback DownloadFileHandler::getHandler() { + return new Common::Callback<DownloadFileHandler, Client &>(this, &DownloadFileHandler::handle); +} + +} // End of namespace Networking diff --git a/backends/networking/sdl_net/handlers/downloadfilehandler.h b/backends/networking/sdl_net/handlers/downloadfilehandler.h new file mode 100644 index 0000000000..6b6966435c --- /dev/null +++ b/backends/networking/sdl_net/handlers/downloadfilehandler.h @@ -0,0 +1,51 @@ +/* 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_DOWNLOADFILEHANDLER_H +#define BACKENDS_NETWORKING_SDL_NET_DOWNLOADFILEHANDLER_H + +#include "backends/networking/sdl_net/handlers/filesbasehandler.h" + +namespace Networking { + +class DownloadFileHandler: public FilesBaseHandler { + void handle(Client &client); + void handleErrorMessage(Client &client, Common::String message); + + /** + * Creates a client handler for downloading file <path>. + * + * Fills <errorMessage> on failure. + * + * Returns true on success. + */ + bool downloadFile(Client &client, Common::String path, Common::String &errorMessage); +public: + DownloadFileHandler(); + virtual ~DownloadFileHandler(); + + virtual ClientHandlerCallback getHandler(); +}; + +} // End of namespace Networking + +#endif diff --git a/backends/networking/sdl_net/handlers/filesbasehandler.cpp b/backends/networking/sdl_net/handlers/filesbasehandler.cpp index 4575e4d7e4..d4b5c3b9e8 100644 --- a/backends/networking/sdl_net/handlers/filesbasehandler.cpp +++ b/backends/networking/sdl_net/handlers/filesbasehandler.cpp @@ -44,9 +44,9 @@ Common::String FilesBaseHandler::parentPath(Common::String path) { return path; } -bool FilesBaseHandler::transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd) { +bool FilesBaseHandler::transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd, bool isDirectory) { // <path> is not empty, but could lack the trailing slash - if (path.lastChar() != '/' && path.lastChar() != '\\') path += '/'; + if (isDirectory && path.lastChar() != '/' && path.lastChar() != '\\') path += '/'; if (path.hasPrefix("/root")) { prefixToAdd = "/root/"; diff --git a/backends/networking/sdl_net/handlers/filesbasehandler.h b/backends/networking/sdl_net/handlers/filesbasehandler.h index 3b631a998b..a960181ad1 100644 --- a/backends/networking/sdl_net/handlers/filesbasehandler.h +++ b/backends/networking/sdl_net/handlers/filesbasehandler.h @@ -39,7 +39,7 @@ protected: * * Returns true on success. */ - bool transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd); + bool transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd, bool isDirectory = true); public: FilesBaseHandler(); virtual ~FilesBaseHandler(); |