Tested against Sonos PLAY:5.
Added URI type to the SOAP library.
The latest upnpresources.zip does not contain older versions of the
specifications, so to be able to generate the bindings I had to create
a fake one:
wget http://upnp.org/specs/av/UPnP-av-TestFiles-20070927.zip
install -d 'standardizeddcps/MediaServer_1 and MediaRenderer_1'
mv UPnP-av-TestFiles-20070927.zip 'standardizeddcps/MediaServer_1 and MediaRenderer_1/'
zip -r fake.zip 'standardizeddcps/MediaServer_1 and MediaRenderer_1'
gotask specgen -s fake.zip -o ../dcps