Add Authentication Required and Proxy Authentication Required.

[ssether-usinternet]

I found this fork of Sippy Cup that adds these two very useful features. Authentation and Proxy Auth are difficult enough in sipp that (previously) I just gave up and didn't require authentication in my test infrastructure. This addition makes the auth effortless.

Auth becomes as simple as:

require 'sippy_cup'
scenario = SippyCup::Scenario.new 'Sippy Cup',from_user: "theUsername" do |s|
  s.invite
  s.auth_required
  s.ack_answer
  s.invite headers: ["[authentication username=theUsername password=thePassword]"]
  s.wait_for_answer
  s.ack_answer
  s.sleep 20
  s.hangup
end

Proxy auth would mean using
s.proxy_auth_required
instead of
s.auth_required

This isn't my code, and I don't know why a pull request was ever created for this, but the only real potential problem as I see it is the method signature for adding a header is now an array, not a string to allow for multiple headers. If necessary to accept this merge request, it could be removed. The following commit is where it was added:
Enflick@6ae9db5

[bklang]

@Karn Wanted to bring this PR to your attention. Someone else in the community opened it. Are you willing to have us merge this back into the main SippyCup repo?

[bklang]

@Karn Would you let us know if you are willing to have your work merged into the upstream Sippy Cup code base?

[Karn]

Hey @bklang, apologies for the late reply. We can totally look at merging this back upstream, give me a few days to clean up the code and get it into a reviewing state!