- Add the `txtorcon` optional dependency, used with `tor` extra.
- Add settings for Tor.
- Use Tor endpoint when an `.onion` XMPP domain is used, of when Tor is explicitely
enabled in conf.
- Disable WebRTC, for now it's the safer option as WebRTC can leak IP. It should be
possible to use it over Tor by forcing the use of a .onion relay, but this is to be
explored later (A/V should be to slow to be usable, but that stay relevant for file
transfer or other WebRTC powered things).
- A new `treq` instance using Tor WebAgent is used when Tor is enabled. Properties has
been added to SatXMPPEntity to conveniently get the right instance.
- Another `tor_mode` property has been added with corresponding bridge methods, to see if
Tor is activated and in which mode for a given profile. For now there are only two modes
(disabled, and enabled with WebRTC disabled), but in the future it may be possible to
activate WebRTC over Tor, or to use Tor only to connect to XMPP server, while using
clearnet for other connections.
- Tor dedicated models have been added, and bridge methods have been added to build and
get them.
- Fix tests.
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