[tor-bugs] #28942 [Circumvention/Snowflake]: Evaluate pion WebRTC

[Tor Bug Tracker & Wiki]

#28942: Evaluate pion WebRTC
--------------------------------------------+------------------------------
 Reporter:  backkem                         |          Owner:  cohosh
     Type:  enhancement                     |         Status:  merge_ready
 Priority:  Medium                          |      Milestone:
Component:  Circumvention/Snowflake         |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  anti-censorship-roadmap-august  |  Actual Points:
Parent ID:                                  |         Points:  5
 Reviewer:                                  |        Sponsor:
                                            |  Sponsor28-must
--------------------------------------------+------------------------------
Changes (by dcf):

 * status:  needs_review => merge_ready


Comment:

 Replying to [comment:64 cohosh]:
 > I'll put this into needs_review now. Here's a commit that bumps the
 version of webrtc and removes the need for the patch:
 https://github.com/cohosh/tor-browser-
 build/commit/873685ba2a4756176bf2a680563f09d297cd3a50
 >
 > And the rebased pion branch of snowflake:
 https://github.com/cohosh/snowflake/compare/pion

 I think this is ready to merge into master.

 > While being able to
 [https://github.com/cohosh/snowflake/commit/ef59d09f7cef7970e34efa18da0612e38f8f5002
 being able to use the pion logs] would be nice, we need Go 1.13 to do it
 nicely, and we haven't yet bumped the version for Tor Browser builds. I
 would like to cherry-pick
 [https://github.com/cohosh/snowflake/commit/f370a4f296de432c392c6fc2f204fd3877a60429
 adding locks to safelog] though.
 >
 > Note also that starting with
 [https://github.com/pion/webrtc/releases/tag/v2.1.4 v2.1.4], pion/webrtc
 is moving to Go 1.13. I'm not sure yet if it can still be built with Go
 1.12.

 I think we'll need to file a ticket to upgrade to Go 1.13 (actually 1.13.1
 now) in Tor Browser. The thing to watch out for is
 [https://golang.org/doc/go1.13#modules changed defaults relating to
 modules]. Now `$GOPATH` will be ignored in any directory that contains a
 go.mod file--so we'll have to make sure that the libraries we stage in
 `$GOPATH` are being used, and separate copies not being downloaded
 implicitly by `go build`.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28942#comment:66>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online