How to configure Big Blue Button for Xirsys TURN server?

Question

I run an self-hosted instance of BigBlueButton and signed up for Xirsys TURN server services because we need to serve clients behind (pretty restrictive) firewalls. Before I had been running my own instance of coturn, but as this led to problems recently, I thought I will got someone who does this for a living a try.

Now the configuration in BBB is explained here:

https://docs.bigbluebutton.org/2.2/setup-turn-server.html

Yet so far I completely failed to match the parameters I receive from Xirsys with what I have to put into the /usr/share/bbb-web/WEB-INF/classes/spring/turn-stun-servers.xml file in the place of the <turn.example.com> and <secret_value>.

Did anyone ever make this work? I did try and find a tutorial but also failed.

Answer 1

bbb_web, is returning this the turn uris. passwords to the html5 client, that the client is using in sip.js

so you can either get bbb-web to send valid username/passwords is same method is used, or modify the html5 client to make a Xirsys api call, to get access to the turn candidates.

Would need to look at api docs. twilio has a similar service.

regards, Stephen

Answer 2

not the most elegant solution but the easiest one for me:

modify the final bbb js bundle to load the stunturn info from a fixed url in e.g.

/usr/share/meteor/bundle/programs/web.browser/f30716b2b57e2862c4db2325                                                                                                                                                             b7aac63f4622842b.js

the minified part should then look somewhat like:

const r=Meteor.settings.public.media,i='https://<yourbbburl>/html5client/stunturn.json',a=r.cacheStunTurnServers,s=r.fallbackStunServer;

and put either the static credentials or generated ones in a file stunturn.json besides the js bundle.