WebRTC recording via Kurento media server

Official guide

I encountered some errors while following the Official guide.
Lucky, I fixed all the errors and make it work finally.
Notes my workaround here, hope it work for you if you have the same problem.

gpg: keyserver receive failed: keyserver error

local install guide

solution from stackoverflow

sudo apt-key adv --keyserver hkp://keys.gnupg.net:80 --recv-keys 5AFA7A83

WebSocket connection to 'wss://<local_ip>:8433/kurento' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED


the application server is started with https if you follow the guide:

http-server -p 8443 -S -C keys/server.crt -K keys/server.key

but kurento media server start without ssl by default config.
You can get from the config and the default port is 8888.


modify kurento media server config to enable ssl and use the same cert that used for your application server. it is a little complex.
but we have a easy solution, just start your application without ssl and test with firefox(if use chrome, you will got a dom exception, then you have to enable ssl for kms).

modify js/index.js
ws_uri: 'ws://' + location.hostname + ':8888/kurento'

start application server with
http-server -p 8443

record callback not triggered

if you use kurento-hello-world-recorder-generator as the example, then everything works well.
but if you use kurento-tutorial-js/kurento-recorder, you might found record not work.


Below patch is work solution for it, but it was not accepted, strange thing.

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