[sup-devel] [Heliotrope/Turnsole] RMail's parsing leads to SystemStackError

* [sup-devel] [Heliotrope/Turnsole] RMail's parsing leads to SystemStackError
@ 2012-03-12 18:24 Michael Stapelberg
  2012-03-23 19:17 ` Matthieu Rakotojaona
  0 siblings, 1 reply; 2+ messages in thread
From: Michael Stapelberg @ 2012-03-12 18:24 UTC (permalink / raw)
  To: sup-devel

Hi,

while working on the GPG signature verification, I noticed that RMail’s MIME
parsing sucks, at least with Ruby 1.9.3:

When encountering a boundary, such as "--=_libri-22937-1314886853-0001-2--",
RMail turns that into a regular expression which matches any amount of
characters or the whole thing, that looks like this:

\-(?:\-(?:=(?:_(?:l(?:i(?:b(?:r(?:i(?:\-(?:2(?:2(?:9(?:3(?:7(?:\-(?:1(?:3(?:1(?:4(?:8(?:8(?:6(?:8(?:5(?:3(?:\-(?:0(?:0(?:0(?:1(?:\-(?:2|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)|\z)

Running this regular expression leads to a SystemStackError. What is an
appropriate way to handle this? As far as I understand, RMail is unmaintained.
And we wanted to switch away from it. Should we monkey-patch?

Best regards,
Michael
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