[tor-bugs] #20761 [Applications/Tor Launcher]: Tor Browser 6.5a4 is ignoring additional SocksPorts

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#20761: Tor Browser 6.5a4 is ignoring additional SocksPorts
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 Reporter:  gk                         |          Owner:  brade
     Type:  defect                     |         Status:  needs_information
 Priority:  Medium                     |      Milestone:
Component:  Applications/Tor Launcher  |        Version:
 Severity:  Normal                     |     Resolution:
 Keywords:  TorBrowserTeam201612       |  Actual Points:
Parent ID:                             |         Points:
 Reviewer:                             |        Sponsor:
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Comment (by arthuredelstein):

 Replying to [comment:6 mcs]:
 > Replying to [comment:4 arthuredelstein]:
 > > As far as I know, the `+SocksPort ...` command-line argument doesn't
 write anything permanent to the torrc file, but just temporarily adds a
 SocksPort for the lifetime of the tor process being launched. So I don't
 think you will be accumulating more than two SocksPorts at a time.
 >
 > Kathy and I saw that happen yesterday when we experimented with
 +SocksPort. It happens without the + as well, at least with Tor
 0.2.9.5-alpha. If you start Tor Browser and then make a change via Tor
 Launcher's Network Settings window so that torrc gets written to disk
 (e.g., enable allowed ports), you will see that ControlPort and SocksPort
 lines are added. We only tested on OSX so far. I wonder what the intended
 behavior is?

 Oh, that's interesting. I guess that behavior is caused by the `SAVECONF`
 command?

 It seems clear we don't want to save an ephemeral `SocksPort
 /one/time/path` line to the torrc file. So I suppose one (somewhat
 awkward) option, instead of using `SAVECONF`, would be to load the
 settings into a string using `GETINFO CONFIG-TEXT`, remove the line with
 the unix-domain SocksPort (that was created for this session only), and
 then write the torrc file directly from JavaScript.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20761#comment:7>
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