[metrics-bugs] #29448 [Obfuscation/BridgeDB]: Provide a dir-spec implementation that serves sanitised descriptors

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#29448: Provide a dir-spec implementation that serves sanitised descriptors
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 Reporter:  irl                   |          Owner:  sysrqb
     Type:  project               |         Status:  needs_information
 Priority:  Low                   |      Milestone:
Component:  Obfuscation/BridgeDB  |        Version:
 Severity:  Normal                |     Resolution:
 Keywords:                        |  Actual Points:
Parent ID:                        |         Points:
 Reviewer:                        |        Sponsor:
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Comment (by irl):

 Is it currently possible for someone to operate their own CollecTor
 instance and archive bridge descriptors? The answer is no unless they are
 syncing from our CollecTor instance.

 We have access to bridge IPs, which is sensitive information, regardless
 of whether or not we publish that information. This is a violation of not
 handling sensitive information.

 > So, the goal here is basically to extract the sanitizing code from
 CollecTor and put it on the BridgeDB host, probably rewritten in a
 different language. Right?

 Yes.

 > However, I can also see the downsides: code complexity of BridgeDB will
 suddenly increase, and whoever runs BridgeDB has one more complex thing to
 take care of.

 We do get the benefit that we no longer have to handle bridge IPs and
 things are more reproducible. It is also easier for people to run testing
 BridgeDBs with a testing CollecTor instance. It is also easier for people
 to run their own production BridgeDBs that we can see statistics of (which
 is a goal that has been previously discussed, to reduce reliance on the
 single BridgeDB instance and allow orgs to set up their own).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29448#comment:2>
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