CLOUD: Refactor LocalWebserver

Its handlers are now more compact. This commit moves Handler classes in handlers\ directory. ResourceHandler ignores "hidden" files in the archive, and these are used as markup templates in IndexPageHandler and FilesPageHandler.
author: Alexander Tkachev 2016-07-06 16:48:56 +0600
committer: Alexander Tkachev 2016-08-24 16:07:55 +0600
commit: 48e3fff6bcea94da5bd46ee2def17eb6bdca716c (patch)
tree: 959135f29269c36b3b4c413716e9ab6ebcedc659 /backends/networking/sdl_net/handlers/filespagehandler.cpp
parent: 627bda9d82c178641e5b5253379c21ce556eb3c2 (diff)
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1 files changed, 146 insertions, 0 deletions
diff --git a/backends/networking/sdl_net/handlers/filespagehandler.cpp b/backends/networking/sdl_net/handlers/filespagehandler.cpp
new file mode 100644
index 0000000000..360fe201b8
--- /dev/null
+++ b/backends/networking/sdl_net/handlers/filespagehandler.cpp
@@ -0,0 +1,146 @@
+/* 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/filespagehandler.h"
+#include "backends/networking/sdl_net/localwebserver.h"
+#include "common/file.h"
+#include "common/translation.h"
+
+namespace Networking {
+
+#define INDEX_PAGE_NAME ".index.html"
+#define FILES_PAGE_NAME ".files.html"
+
+FilesPageHandler::FilesPageHandler() {}
+
+FilesPageHandler::~FilesPageHandler() {}
+
+void FilesPageHandler::handle(Client &client) {
+	Common::String response = "<html><head><title>ScummVM</title></head><body><table>{content}</table></body></html>"; //TODO: add controls
+	Common::String itemTemplate = "<tr><td><a href=\"{link}\">{name}</a></td><td>{size}</td></tr>\n"; //TODO: load this template too?
+
+	// load stylish response page from the archive
+	Common::SeekableReadStream *const stream = getArchiveFile(FILES_PAGE_NAME);
+	if (stream) response = readEverythingFromStream(stream);
+
+	Common::String path = client.queryParameter("path");
+	Common::String content = "";
+	
+	// show an error message if failed to list directory
+	if (!listDirectory(path, content, itemTemplate)) {
+		handleErrorMessage(
+			client,
+			Common::String::format(
+				"%s<br/><a href=\"files?path=/\">%s</a>",
+				_("ScummVM couldn't list the directory you specified."),
+				_("Back to the files manager")
+			)
+		);
+		return;
+	}
+
+	//these occur twice:
+	replace(response, "{create_directory_button}", _("Create directory"));
+	replace(response, "{create_directory_button}", _("Create directory"));
+	replace(response, "{upload_files_button}", _("Upload files")); //tab
+	replace(response, "{upload_file_button}", _("Upload files")); //button in the tab
+	replace(response, "{create_directory_desc}", _("Type new directory name:"));
+	replace(response, "{upload_file_desc}", _("Select a file to upload:"));
+	replace(response, "{content}", content);	
+	LocalWebserver::setClientGetHandler(client, response);
+}
+
+void FilesPageHandler::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 FilesPageHandler::listDirectory(Common::String path, Common::String &content, const Common::String &itemTemplate) {
+	if (path == "" || path == "/") {
+		addItem(content, itemTemplate, true, "/root/", _("File system root"));
+		addItem(content, itemTemplate, true, "/saves/", _("Saved games"));
+		return true;
+	}
+
+	Common::String prefixToRemove = "", prefixToAdd = "";
+	if (!transformPath(path, prefixToRemove, prefixToAdd)) return false;
+
+	Common::FSNode node = Common::FSNode(path);
+	if (path == "/") node = node.getParent(); // absolute root
+	if (!node.isDirectory()) return false;
+
+	// list directory
+	Common::FSList _nodeContent;
+	if (!node.getChildren(_nodeContent, Common::FSNode::kListAll, false)) // do not show hidden files
+		_nodeContent.clear();
+	else
+		Common::sort(_nodeContent.begin(), _nodeContent.end());
+
+	// add parent directory link
+	{
+		Common::String filePath = path;
+		if (filePath.hasPrefix(prefixToRemove))
+			filePath.erase(0, prefixToRemove.size());
+		if (filePath == "" || filePath == "/" || filePath == "\\")
+			filePath = "/";
+		else
+			filePath = parentPath(prefixToAdd + filePath);
+		addItem(content, itemTemplate, true, filePath, _("Parent directory"));
+	}
+
+	// fill the content
+	for (Common::FSList::iterator i = _nodeContent.begin(); i != _nodeContent.end(); ++i) {
+		Common::String name = i->getDisplayName();
+		if (i->isDirectory()) name += "/";
+
+		Common::String filePath = i->getPath();
+		if (filePath.hasPrefix(prefixToRemove))
+			filePath.erase(0, prefixToRemove.size());
+		filePath = prefixToAdd + filePath;
+
+		addItem(content, itemTemplate, i->isDirectory(), filePath, name);
+	}
+
+	return true;
+}
+
+void FilesPageHandler::addItem(Common::String &content, const Common::String &itemTemplate, bool isDirectory, Common::String path, Common::String name, Common::String size) {
+	Common::String item = itemTemplate;
+	replace(item, "{link}", (isDirectory ? "files?path=" : "download?path=") + path);
+	replace(item, "{name}", name);
+	replace(item, "{size}", size);
+	content += item;
+}
+
+/// public
+
+ClientHandlerCallback FilesPageHandler::getHandler() {
+	return new Common::Callback<FilesPageHandler, Client &>(this, &FilesPageHandler::handle);
+}
+
+} // End of namespace Networking
author	Alexander Tkachev	2016-07-06 16:48:56 +0600
committer	Alexander Tkachev	2016-08-24 16:07:55 +0600
commit	48e3fff6bcea94da5bd46ee2def17eb6bdca716c (patch)
tree	959135f29269c36b3b4c413716e9ab6ebcedc659 /backends/networking/sdl_net/handlers/filespagehandler.cpp
parent	627bda9d82c178641e5b5253379c21ce556eb3c2 (diff)
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