[tor-bugs] #24432 [Obfuscation/BridgeDB]: The meek<->moat tunneling isn't set up correctly

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Nov 27 21:02:20 UTC 2017


#24432: The meek<->moat tunneling isn't set up correctly
----------------------------------+--------------------------
 Reporter:  isis                  |          Owner:  isis
     Type:  defect                |         Status:  new
 Priority:  High                  |      Milestone:
Component:  Obfuscation/BridgeDB  |        Version:
 Severity:  Normal                |     Resolution:
 Keywords:  moat bridgedb-dist    |  Actual Points:
Parent ID:                        |         Points:  2
 Reviewer:                        |        Sponsor:  SponsorM
----------------------------------+--------------------------

Comment (by dcf):

 It works for me with a few changes.
 {{{
 $ ./externalize-pt-client.sh meek/meek-client/meek-client -url https
 ://tor-bridges-hyphae-channel.appspot.com/ -front www.google.com
 $ curl --proxy socks5://127.0.0.1:10000/
 https://bridges.torproject.org/moat/fetch
 {"errors": [{"status": "Not Implemented", "code": 501, "detail": "moat
 version 0.1.0 does not implement GET /moat/fetch", "version": "0.1.0",
 "type": "", "id": 0}]}
 }}}

 4-dot-tor-bridges-hyphae-channel.appspot.com indeed seems to be
 misconfigured (giving the redirect you described), but tor-bridges-hyphae-
 channel.appspot.com seems to work.

 Going to https://tor-bridges-hyphae-channel.appspot.com/moat/fetch in a
 browser is not going to work, because the `/moat/fetch` is at the wrong
 layer. The appspot.com domain is just a tunneling mechanism and doesn't
 use any URL paths. The moat communication, including URL paths, has to
 happen inside the tunnel. In other words,
  * meek-client (outside of tunnel) uses !https://tor-bridges-hyphae-
 channel.appspot.com/
  * curl (inside of tunnel) uses !https://bridges.torproject.org/moat/fetch
 (which indeed it is tunneling to)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24432#comment:3>
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