[tor-bugs] #25423 [Core Tor/Stem]: Treat 'ExitRelay 0' as a reject-all policy

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#25423: Treat 'ExitRelay 0' as a reject-all policy
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     Reporter:  atagar         |      Owner:  atagar
         Type:  defect         |     Status:  new
     Priority:  Medium         |  Milestone:
    Component:  Core Tor/Stem  |    Version:
     Severity:  Normal         |   Keywords:
Actual Points:                 |  Parent ID:
       Points:                 |   Reviewer:
      Sponsor:                 |
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 Oops! Most folks use 'ExitPolicy reject *:*' to flag their relay as being
 a non-exit, but turns out that tor has another option that does the same
 thing...

 https://www.torproject.org/docs/tor-manual.html.en#ExitRelay

 We should change the Controller's get_exit_policy() method to provide a
 reject-all policy when this is set. Caught thanks to Gary on tor-relays...

 https://lists.torproject.org/pipermail/tor-relays/2018-March/014741.html

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25423>
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