[tor-bugs] #23549 [Metrics/Website]: Move ExoneraTorServlet to metrics-web

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#23549: Move ExoneraTorServlet to metrics-web
-----------------------------+------------------------------
 Reporter:  karsten          |          Owner:  karsten
     Type:  enhancement      |         Status:  needs_review
 Priority:  Medium           |      Milestone:
Component:  Metrics/Website  |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:  metrics-2018     |  Actual Points:
Parent ID:                   |         Points:
 Reviewer:                   |        Sponsor:
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Changes (by karsten):

 * status:  accepted => needs_review


Comment:

 Alright, please review
 [https://gitweb.torproject.org/user/karsten/exonerator.git/commit/?h=task-23549&id=bd235118ebe2505c571fd028f981dd3481dcfedd
 commit bd23511 in my exonerator task-23549 branch] and
 [https://gitweb.torproject.org/karsten/metrics-
 web.git/commit/?h=task-23549&id=a7ad91aa0f4a619fc3ffb1eda43cba1708a4006a
 commit a7ad91a in my metrics-web task-23549 branch].

 Note on deployment:
  1. We'll first have to merge the ExoneraTor patch and put out a new
 ExoneraTor release, but without deploying yet.
  2. Then we'll have to update the metrics-web patch to include the
 released ExoneraTor thin jar, which we can deploy at the same time.
  3. Finally, we can deploy the ExoneraTor release, which will then
 redirect all requests (including parameters) to Tor Metrics.
  4. We should keep the redirect in place for a longer time than usual,
 because all earlier printouts of the ExoneraTor page still contain the
 permanent link to exonerator.tp.o, and we should make sure they still work
 for at least 6 months if not even 12 months or longer.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23549#comment:18>
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