5.3 KiB
About Jitsi
Several server components:
- prosody XMPP (ext)
- jitsi videobridge aka JVB
- jitsi conference focus aka jicofo aka focus
- jitsi meet
- octo
- jigasi
- jibri
- etc.
Some libs:
- libjitsi seems deprecated
- jicoco contains some parent classes to handle Jitsi's Configuration
- jitsi-utils contains the Logger definition for example
- ice4j contains jitsi's implementation of WebRTC
- etc.
Client components:
- jitsi meet electron
- jitsi android/ios
- etc.
Conf
Base conf:
the following is used in videobridge.conf: jicoco/MucClientConfiguration
How the new configuration is read in jicoco:
https://github.com/jitsi/jicoco/blob/master/jicoco-config/src/main/kotlin/org/jitsi/config/JitsiConfig.kt#L83-L91
They use this library: https://github.com/lightbend/config
We are particularly interested by: https://github.com/lightbend/config#standard-behavior
Using 'application.conf' with classpath does not seem to work.
But, specifying the file path as -Dconfig.file=/etc/jitsi/jicofo.conf works!
Some parameters are also set independently of lightbend hocon config.
They are seen in jicofo entrypoint:
https://github.com/jitsi/jicofo/blob/master/src/main/java/org/jitsi/jicofo/Main.java
Many of these parameters can be in fact read from the HOCON file except one: the --secret parameter or the JICOFO_SECRET env variable.
But we can see this is a deprecated thing, it has been already removed from master: c9e5b50a8b
For now (as per v5390) we will keep JICOFO_SECRET environment variable but will assume no other environment variable is set
But maybe this value is deprecated: the check is still here but it is not used anymore?!
Generate certs with prosody
prosodyctl cert generate auth.jitsi
prosodyctl cert generate jitsi
An example prosody configuration file
https://github.com/jitsi/jitsi-meet/blob/master/doc/example-config-files/prosody.cfg.lua.example
but this one is not the one used by the debian postinst script instead, we should look at this one: https://github.com/jitsi/jitsi-meet/blob/master/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example
Jitsi can be configured to authenticated through tokens, the postinst file is here: https://github.com/jitsi/jitsi-meet/blob/master/debian/jitsi-meet-tokens.postinst
Remote debug
Add this parameter to the java process you want to debug (either jicofo or jvb). It must be added by modifying the entrypoint script, next to the respective Dockerfile of each container.
-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:5005
Be careful
jiti-videobridge (jvb) does not start to listen on ICE ports (both TCP and UDP) at boot. Instead, listening is triggered on the creation of the first conference (a 2 people P2P conference is enough). A nice entrypoint to check with your debugger is:
- Videobridge.java#XmppConnectionEventHandle.colibriConferenceIqReceived
- VideobridgeShim.java#VideobridgeShim.handleColibriConferenceIQ
- ConferenceShim.java#ConferenceShim.initializeSignaledEndpoints
- ConferenceShim.java#ConferenceShim.ensureEndpointCreated
- Conference.java#Conference.createLocalEndpoint
- Endpoint.java#Endpoint.new
- IceTransport.kt#IceTransport.iceAgent(init)
- IceTransport.kt#companionObject.appendHarvesters