backport #1465: @site and @navroot endpoints

[erral]

Backport of #1465 to 7.x.x to have it for plone/volto#5185

[mister-roboto]

@erral thanks for creating this Pull Request and helping to improve Plone!

TL;DR: Finish pushing changes, pass all other checks, then paste a comment:

@jenkins-plone-org please run jobs

To ensure that these changes do not break other parts of Plone, the Plone test suite matrix needs to pass, but it takes 30-60 min. Other CI checks are usually much faster and the Plone Jenkins resources are limited, so when done pushing changes and all other checks pass either start all Jenkins PR jobs yourself, or simply add the comment above in this PR to start all the jobs automatically.

Happy hacking!

[erral]

@jenkins-plone-org please run jobs

[erral]

See: plone/volto#5185

[erral]

eh... how are we testing the 7.x.x branch in python 2.7? It is not available on github actions... @plone/restapi-team

[davisagli]

@erral There is still a Jenkins job which tests on Python 2.7

[tisto]

@erral I remember that you can use an old ubuntu image on GHA that still ships with Python 2.7. Not sure if that still is the case though. It gets harder and harder to support Python 2.7 these days :(

[erral]

@erral There is still a Jenkins job which tests on Python 2.7

where all robot tests fail 😒

[davisagli]

@erral There are some syntax errors in Python 2

[davisagli]

@erral I think it would be fine to disable the new endpoints entirely for Plone 4.3 (i.e. with conditional zcml, plus skipping the tests on 4.3)

[erral]

@davisagli the whole point of this PR was to bring @site and @navroot to Plone 4.3 as per plone/volto#5185 (comment)

I will try to fix the issues.

[davisagli]

@erral Oops, right, I forgot. Carry on, then.

[erral]

@jenkins-plone-org please run jobs

[erral]

Green!

[davisagli]

@erral Thanks!

[mauritsvanrees]

I have released this in plone.restapi 7.9.0.