[tor-bugs] #29734 [Obfuscation/Snowflake]: Broker should receive country stats information from Proxy and Client

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#29734: Broker should receive country stats information from Proxy and Client
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 Reporter:  cohosh                   |          Owner:  cohosh
     Type:  enhancement              |         Status:  assigned
 Priority:  Medium                   |      Milestone:
Component:  Obfuscation/Snowflake    |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:  snowflake, geoip, stats  |  Actual Points:
Parent ID:  #29207                   |         Points:  1
 Reviewer:                           |        Sponsor:  Sponsor19
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Comment (by cohosh):

 Replying to [comment:1 ahf]:

 > Once the broker is able to update per-country stats for the domain-
 fronted client connection it should also be able to relay information
 about which database it is using to the Snowflake proxies, such that they
 can keep stats about incoming proxy connections from clients and where
 these are coming from. This would (maybe?) allow us to notice if WebRTC
 filtering is happening in a country in that the Broker will see multiple
 connections from the given country, but the proxies reports no incoming
 clients from the given country.
 >
 Are we already collecting per-country usage stats for snowflake bridges
 (as we do for other types of bridges)? If so, this might give us what we
 need automatically for noticing WebRTC filtering. Especially at the moment
 where there is one broker and one bridge, if clients are able to connect
 to snowflake proxies, there shouldn't be any '''censorship''' related
 reason that they cannot connect to bridges.

 I think per-country usage stats at the broker side are still useful of
 course, it gives us extra information if clients are able to connect to
 the broker but not able to connect to the snowflake bridge eventually.

 On a different note, it might also be useful to us to collect per-country
 stats on where the proxies are being run from.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29734#comment:3>
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