Re: [tor-bugs] #2461 [Tor Weather]: Notify people about relays that recently qualified for a Tor t-shirt

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#2461: Notify people about relays that recently qualified for a Tor t-shirt
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 Reporter:  karsten      |          Owner:  kaner
     Type:  enhancement  |         Status:  new  
 Priority:  normal       |      Milestone:       
Component:  Tor Weather  |        Version:       
 Keywords:               |         Parent:       
   Points:               |   Actualpoints:       
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Comment(by StalkR):

 Oops, reading the spec
 (https://gitweb.torproject.org/torspec.git/blob/HEAD:/dir-spec.txt)
 uptime, unlike bandwidth, is not part of the consensus, so we need to
 calculate it differently and it's not immediate (we need a list of
 consensuses as arma said).

 Knowing:

  * we cannot rely on router descriptors for uptime as they can be faked
  * a node marked Running in consensus can be considered up
  * node bandwidth in consensus can be trusted
  * we do not want to reset uptime if a router is down, we want to resume
 increasing uptime next time it is up

 I propose we can calculate the uptime of a given node by adding delays
 between consecutive consensuses in which we have seen the node was up.
 Also when incrementing the uptime, maintain node average bandwidth using
 node bandwidth in consensus (as done currently).

 That way, we can calculate if a node owned a t-shirt by importing old
 consensuses.


 Now do we prefer a script? (a)
 + can be run offline, on an archive of consensuses
 - need to run it manually/cron somewhere and some logic to distinguish
 which ones are new

 or a quick solution integrated to TOR weather? (b)
 + automated
 + can easily have a page "did I win a t-shirt" #8999
 - no uptime accounting if weather is down/not maintaining its database,
 delaying t-shirts

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2461#comment:3>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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