[tor-bugs] #20699 [Core Tor/Tor]: prop224: Add control port events and commands

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#20699: prop224: Add control port events and commands
-------------------------------------------------+-------------------------
 Reporter:  dgoulet                              |          Owner:  dgoulet
     Type:  enhancement                          |         Status:
                                                 |  accepted
 Priority:  Very High                            |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, needs-proposal,              |  Actual Points:
  prop224-extra, tor-control                     |
Parent ID:                                       |         Points:  6
 Reviewer:                                       |        Sponsor:
                                                 |  SponsorR-must
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Comment (by asn):

 Replying to [comment:14 dgoulet]:
 > Replying to [comment:13 dgoulet]:
 > > The `HS_DESC` event now implemented. Remains: `HS_DESC_CONTENT`,
 `HSFETCH` and `HSPOST`.
 >
 > I'm getting skeptical of the need to implement `HSFETCH`. The two main
 use of that command that I can recall is (1) our bad HSDir scanner and (2)
 OnionBalance.
 >
 > However, I spoke with Donnacha and onion balance won't be using HSFETCH
 for v3 because it is a bit more complicated since keys are cross certified
 and signed.

 Makes sense. Let's de-prioritize HSFETCH then. I can think of some
 diagnostic/debugging reasons for having it, but definitely not that useful
 now that OnionBalance doesn't need to use it. We can do it in the future
 when/if the need arrives.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20699#comment:15>
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