[tor-bugs] #8978 [Tor]: Write server-side pluggable transport options to extra-info descriptor

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#8978: Write server-side pluggable transport options to extra-info descriptor
---------------------------+------------------------------------------------
 Reporter:  asn            |          Owner:                    
     Type:  task           |         Status:  needs_review      
 Priority:  normal         |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor            |        Version:                    
 Keywords:  tor-bridge pt  |         Parent:                    
   Points:                 |   Actualpoints:                    
---------------------------+------------------------------------------------
Changes (by asn):

  * status:  new => needs_review


Comment:

 Please see `bug8978` in `https://git.torproject.org/user/asn/tor.git`.

 As you can see from the branch, I'm just picking up the ARGS provided by
 the pluggable transport and placing them directly to our extra-info
 descriptor. I'm not doing any validation that they are actually key=value
 strings for two reasons:
 a) Our threat model usually trusts the transport proxy.
 b) I didn't want to write an unescape function in C. We will have to write
 such a function anyway for BridgeDB in Python.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8978#comment:4>
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