[tor-bugs] #24774 [Core Tor]: Edit prop279 to support alternative name representations and non-English languages

[Tor Bug Tracker & Wiki]

#24774: Edit prop279 to support alternative name representations and non-English
languages
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     Reporter:  nullius      |      Owner:  (none)
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Core Tor     |    Version:
     Severity:  Normal       |   Keywords:  prop279
Actual Points:               |  Parent ID:  #10747
       Points:               |   Reviewer:
      Sponsor:               |
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 Attached is a `git diff` patch with edits to torspec.git/proposals/279
 -naming-layer-api.txt (patch on 13cbcbc).  Inspired by discussion on tor-
 dev:

 https://lists.torproject.org/pipermail/tor-dev/2017-December/012743.html

 https://lists.torproject.org/pipermail/tor-dev/2017-December/012746.html

 Brief conceptual overview of the most significant changes:

 * Support Name System API plugins which transform self-contained
 alternative representations of the data in .onion names.  These can be
 safely configured for a global wildcard '*', then sandboxed with neither
 network nor filesystem access.

 * Add UTF-8 support, so as not restrict the Name System API to users of
 American English.

 * Specify failure status codes which will cause name resolution attempts
 to stop, even if the name may match the TLD for other plugins at a lower
 priority.  This is useful if a plugin configured for a '*' TLD
 definitively recognizes that a name is invalid, ''e.g.'' due to checksum
 failure.

 * Other changes which support the foregoing objectives.

 Please review and commit.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24774>
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