[tor-bugs] #33835 [Circumvention/BridgeDB]: Gmail's quoted response confuses BridgeDB's email autoresponder

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Apr 16 15:10:15 UTC 2020


#33835: Gmail's quoted response confuses BridgeDB's email autoresponder
------------------------------------+-------------------------------
 Reporter:  phw                     |          Owner:  agix
     Type:  defect                  |         Status:  assigned
 Priority:  Medium                  |      Milestone:
Component:  Circumvention/BridgeDB  |        Version:
 Severity:  Normal                  |     Resolution:
 Keywords:  s30-o22a2               |  Actual Points:
Parent ID:  #31279                  |         Points:  1
 Reviewer:                          |        Sponsor:  Sponsor30-can
------------------------------------+-------------------------------

Comment (by agix):

 To effectively parse out the requested options via email, I used the
 get_payload() function for EmailMessage objects.
 As pointed out in both answers of
 [https://stackoverflow.com/questions/45124127/unable-to-extract-the-body-
 of-the-email-file-in-python/45124153] there needs to be a certain policy
 defined (policy.compat32 instead the default policy) to be able to use
 get_payload instead of get_body.
 The advantage of get_payload is that it ignores the Content-Type and
 Content-Transfer-Encoding header and therefore solely focuses on the
 actual payload which makes the parsing way easier.
 get_payload(0).get_payload() parses out the plain text, but cant
 differentiate between the actual message and previous responses.
 Thats why this approach just focuses on the first 3 words of an incoming
 email to determine the response action.
 This seems to be one of only few approaches if we don't want to rely on
 regex anymore, but I am open to suggestions.
 Additionally some unittests need to be adjusted for this patch.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33835#comment:2>
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