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Re: [tor-bugs] #11683 [Tor]: Stop caching extra-info documents on directory mirrors

#11683: Stop caching extra-info documents on directory mirrors
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     Reporter:  karsten      |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:  Tor: 0.2.???
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by karsten):

 You're right, this wouldn't remove as much code as I had expected.  But
 it's going to remove the need for directory mirrors to keep their extra-
 info caches recent.  And it's going to make the spec slightly simpler.

 So, while going through the code, I found that clients currently rely on
 `"caches-extra-info"` when selecting a directory to fetch extra-info
 documents from.  I believe that's a bug.  Clients should always expect the
 directory authorities to support extra infos, regardless of whether they
 contain that line in their descriptor or not.  (One might argue whether
 clients should prefer non-authorities over authorities for downloads, but
 believing that authorities don't serve extra-infos is just not correct.)

 How about we add a patch for that to 0.2.5 and postpone possibly taking
 away the `"caches-extra-info"` line from directory mirrors until 0.2.6 and
 from directory authorities until 0.2.7?

 Please find
 [https://gitweb.torproject.org/karsten/tor.git/shortlog/refs/heads/bug11683
 my branch bug11683].

 (Unrelated to this, I'm not 100% certain whether the use of `is_trusted`
 is correct in that function.  The bridge authority is trusted, too, but we
 wouldn't want to ask it for microdescriptors, would we?)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11683#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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