[tor-bugs] #22214 [Core Tor/Tor]: Certificate downloads are broken

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#22214: Certificate downloads are broken
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.1.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Major         |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 On master, I have a test directory authority on i386 macOS 10.12 which
 can't download certificates. The directory authority had been down
 (asleep) for a while, and on update to the new master, it said:

 {{{
 May 10 19:02:28.645 [notice] Tor 0.3.1.0-alpha-dev (git-0266c4ac819d9c83)
 running on Darwin with Libevent 2.1.8-stable, OpenSSL 1.0.2k, Zlib 1.2.11,
 Liblzma N/A, and Libzstd N/A.
 ...
 May 10 19:03:15.000 [warn] Got a certificate for lemonpeasy, but we
 already have it. Maybe they haven't updated it. Waiting for a while.
 May 10 19:03:15.000 [warn] Got a certificate for triplepeak, but we
 already have it. Maybe they haven't updated it. Waiting for a while.
 May 10 19:03:15.000 [warn] Got a certificate for Betty, but we already
 have it. Maybe they haven't updated it. Waiting for a while.
 May 10 19:03:15.000 [warn] Got a certificate for Evelyn, but we already
 have it. Maybe they haven't updated it. Waiting for a while.
 May 10 19:03:15.000 [warn] Got a certificate for albert, but we already
 have it. Maybe they haven't updated it. Waiting for a while.
 May 10 19:03:15.000 [warn] Got a certificate for missionary, but we
 already have it. Maybe they haven't updated it. Waiting for a while.
 ...
 May 10 19:04:16.000 [warn] Looks like we need to download a new
 certificate from authority 'triplepeak' at ...
 May 10 19:04:16.000 [warn] Looks like we need to download a new
 certificate from authority 'Betty' at ...
 }}}

 I suspect this bug might have been introduced in 0.3.1. Or, it might be
 due to the fact our test network consensus is broken. Or it could be
 because we're on mixed versions (which should work).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22214>
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