UPnP devices coming to the network:/ kioslave

Since the Coherence/KDE sprint (Spain, 26 °C, sun), where work was done for some UPnP bindings for KDE, a week has passed (Germany, 4 °C, rain/hail). Besides the weather some other things have changed that week, too, but for the good 🙂

While on Day 1 of the sprint I already managed to have first UPnP devices show up in the network:/ kioslave, it was done with hacky prototype code, to have some things working to start from. Day 2 didn’t change much in that regard.

The days since then Frank Scholz, the main developer of Coherence, has been very supportive and has continued adding needed features to the D-Bus API, and I have hammered a little more onto the code for the UPnP backend to the network:/ kioslave. To much success! UPnP devices are now coming and going in the network:/ listing, matching the real devices’ behaviour, with proper name and type.

All that is missing to my full pleasure is the usage of each UPnP device’s custom icon (So if you know how to set custom icons (i.e. not by name, but delivered from remote, cmp. favicons) for UDSEntries in a kioslave, please tell me!). And forwarding to the presentation url of the UPnP device, if available, but that looks like it needs some discussions with the KIO developers, because of the “abuse” of KIO for the network:/ kioslave.

No screenshot today, if you are interested please try it yourself:
The UPnP backend for the network:/ kioslave is based on the utility libkupnp which cares for the wrapping of the D-Bus connection to Coherence. So fetch both
libkupnp at
http://websvn.kde.org/trunk/playground/network/kupnp/
and the UPnP backend at
http://websvn.kde.org/branches/work/network-kioslave/adding-upnp-backend/
and compile as usual.

You also need a current version (>=#1440) from trunk of Coherence:

svn co https://coherence.beebits.net/svn/trunk/Coherence
sudo python ./setup.py install

(No idea how to install Coherence to a user-only prefix, hints welcome!)

If you are interested in Bart's work on UPnP support for Amarok, do not miss his last blog entry (which seems to have missed planet KDE).

The coming weeks I will see if libkupnp can be extended to be useful for other code interacting with UPnP devices (at least from a UPnP control point's view). For a start I will try a InternetGatewayDevice proxy class, which could be used by programs wanting NAT traversal (Konversation and KTorrent already have some custom implementation, but this could help others). Next would be a MediaServer proxy class, perhaps that could simplify Bart's upnp:/ kioslave.

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