[tor-bugs] #29207 [Circumvention/Snowflake]: New design for broker -- proxy protocol for snowflakes

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#29207: New design for broker -- proxy protocol for snowflakes
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 Reporter:  cohosh                               |          Owner:  ahf
     Type:  task                                 |         Status:
                                                 |  assigned
 Priority:  Very High                            |      Milestone:
Component:  Circumvention/Snowflake              |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  snowflake, design, ex-sponsor-19,    |  Actual Points:
  anti-censorship-roadmap                        |
Parent ID:                                       |         Points:  5
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor28-must
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Comment (by dcf):

 Replying to [comment:13 serna]:
 > Replying to [comment:5 cohosh]:
 > > As referenced in #29426, the broker currently gives proxies a 504
 message if no client is available which is a questionable design
 >
 > I suggest changing the status to 204 No Content, it would represent that
 there's no error but it also no one to connect to.

 I disagree here. It's better not to hide ''any'' necessary information in
 the HTTP layer, because not every way of interacting with the broker will
 have those HTTP features. See for example comment:11:ticket:25985. Even
 assuming HTTP, codes like 204 are probably less likely to pass untouched
 by proxies. I propose to just always use status code 200, unless there is
 a genuine internal server error, and encode ''all'' necessary information
 in the HTTP body. We're not designing a REST interface here.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29207#comment:15>
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