[sr-dev] HTTP/WS support for rtpengine

[Richard Fuchs]

Hi gang,

As of today, rtpengine adds support for HTTP and WebSocket interfaces 
(as well as HTTPS and WSS). Currently supported operations are accessing 
the CLI commands provided by the `rtpengine-ctl` CLI tool, and accessing 
the "NG" control protocol. These are both 1-to-1 mappings on top of the 
existing interfaces, just with a different transport protocol on top, 
which doesn't make for a pretty RESTful interface, but should otherwise 
be perfectly usable. It can also be further extended if necessary, with 
some additional operations already planned. There's a bit more detail at 
https://github.com/sipwise/rtpengine#httpwebsocket-support

The "NG" protocol support in particular should be interesting to those 
who keep having problems with the UDP transport of the existing 
protocol, due to packet loss or MTU issues or otherwise. This makes it 
possible to switch the transport protocol to HTTP or WS while retaining 
full compatibility with the existing control protocol. This isn't 
currently implemented in the Kamailio module for rtpengine, but if 
someone feels like giving it a shot, then by all means feel free. It may 
also be of interest to those who want to control rtpengine from JS etc 
for example.

Cheers

Richard