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-rw-r--r--plugins/upnp/upnpdescriptionparser.cpp220
1 files changed, 220 insertions, 0 deletions
diff --git a/plugins/upnp/upnpdescriptionparser.cpp b/plugins/upnp/upnpdescriptionparser.cpp
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+++ b/plugins/upnp/upnpdescriptionparser.cpp
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+/***************************************************************************
+ * Copyright (C) 2005 by Joris Guisson *
+ * *
+ * 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 <qxml.h>
+#include <qvaluestack.h>
+#include <util/fileops.h>
+#include <util/log.h>
+#include <torrent/globals.h>
+#include "upnprouter.h"
+#include "upnpdescriptionparser.h"
+
+using namespace bt;
+
+namespace kt
+{
+
+ class XMLContentHandler : public QXmlDefaultHandler
+ {
+ enum Status
+ {
+ TOPLEVEL,ROOT,DEVICE,SERVICE,FIELD,OTHER
+ };
+
+ QString tmp;
+ UPnPRouter* router;
+ UPnPService curr_service;
+ QValueStack<Status> status_stack;
+ public:
+ XMLContentHandler(UPnPRouter* router);
+ virtual ~XMLContentHandler();
+
+
+ bool startDocument();
+ bool endDocument();
+ bool startElement(const QString &, const QString & localName, const QString &,
+ const QXmlAttributes & atts);
+ bool endElement(const QString & , const QString & localName, const QString & );
+ bool characters(const QString & ch);
+
+ bool interestingDeviceField(const QString & name);
+ bool interestingServiceField(const QString & name);
+ };
+
+
+ UPnPDescriptionParser::UPnPDescriptionParser()
+ {}
+
+
+ UPnPDescriptionParser::~UPnPDescriptionParser()
+ {}
+
+ bool UPnPDescriptionParser::parse(const QString & file,UPnPRouter* router)
+ {
+ bool ret = true;
+ {
+ QFile fptr(file);
+ if (!fptr.open(IO_ReadOnly))
+ return false;
+
+ QXmlInputSource input(&fptr);
+ XMLContentHandler chandler(router);
+ QXmlSimpleReader reader;
+
+ reader.setContentHandler(&chandler);
+ ret = reader.parse(&input,false);
+ }
+
+ if (!ret)
+ {
+ Out(SYS_PNP|LOG_IMPORTANT) << "Error parsing XML" << endl;
+ return false;
+ }
+ return true;
+ }
+
+ /////////////////////////////////////////////////////////////////////////////////
+
+
+ XMLContentHandler::XMLContentHandler(UPnPRouter* router) : router(router)
+ {}
+
+ XMLContentHandler::~XMLContentHandler()
+ {}
+
+
+ bool XMLContentHandler::startDocument()
+ {
+ status_stack.push(TOPLEVEL);
+ return true;
+ }
+
+ bool XMLContentHandler::endDocument()
+ {
+ status_stack.pop();
+ return true;
+ }
+
+ bool XMLContentHandler::interestingDeviceField(const QString & name)
+ {
+ return name == "friendlyName" || name == "manufacturer" || name == "modelDescription" ||
+ name == "modelName" || name == "modelNumber";
+ }
+
+
+ bool XMLContentHandler::interestingServiceField(const QString & name)
+ {
+ return name == "serviceType" || name == "serviceId" || name == "SCPDURL" ||
+ name == "controlURL" || name == "eventSubURL";
+ }
+
+ bool XMLContentHandler::startElement(const QString &, const QString & localName, const QString &,
+ const QXmlAttributes & )
+ {
+ tmp = "";
+ switch (status_stack.top())
+ {
+ case TOPLEVEL:
+ // from toplevel we can only go to root
+ if (localName == "root")
+ status_stack.push(ROOT);
+ else
+ return false;
+ break;
+ case ROOT:
+ // from the root we can go to device or specVersion
+ // we are not interested in the specVersion
+ if (localName == "device")
+ status_stack.push(DEVICE);
+ else
+ status_stack.push(OTHER);
+ break;
+ case DEVICE:
+ // see if it is a field we are interested in
+ if (interestingDeviceField(localName))
+ status_stack.push(FIELD);
+ else
+ status_stack.push(OTHER);
+ break;
+ case SERVICE:
+ if (interestingServiceField(localName))
+ status_stack.push(FIELD);
+ else
+ status_stack.push(OTHER);
+ break;
+ case OTHER:
+ if (localName == "service")
+ status_stack.push(SERVICE);
+ else if (localName == "device")
+ status_stack.push(DEVICE);
+ else
+ status_stack.push(OTHER);
+ break;
+ case FIELD:
+ break;
+ }
+ return true;
+ }
+
+ bool XMLContentHandler::endElement(const QString & , const QString & localName, const QString & )
+ {
+ switch (status_stack.top())
+ {
+ case FIELD:
+ // we have a field so set it
+ status_stack.pop();
+ if (status_stack.top() == DEVICE)
+ {
+ // if we are in a device
+ router->getDescription().setProperty(localName,tmp);
+ }
+ else if (status_stack.top() == SERVICE)
+ {
+ // set a property of a service
+ curr_service.setProperty(localName,tmp);
+ }
+ break;
+ case SERVICE:
+ // add the service
+ router->addService(curr_service);
+ curr_service.clear();
+ // pop the stack
+ status_stack.pop();
+ break;
+ default:
+ status_stack.pop();
+ break;
+ }
+
+ // reset tmp
+ tmp = "";
+ return true;
+ }
+
+
+ bool XMLContentHandler::characters(const QString & ch)
+ {
+ if (ch.length() > 0)
+ {
+ tmp += ch;
+ }
+ return true;
+ }
+
+}