Previous Replies separator is not RFC-compliant

rriemann · 2016 年2 月 11 日 16:36

Continuing the discussion from Imdb embeds broken on other sites:

I just received two mails with practically the same content (that’s weird) due to a response linked above and noticed:

My mail application KMail doesn’t strip off the signature when I reply. The issue seems to be the separator.

KMail claims that RFC compliant is -- (dash dash space on a single line).

I think I found the source: https://www.ietf.org/rfc/rfc3676.txt (4.3)

However, Discourse uses “—” (triple dash without space) as a separator.

github.com/discourse/discourse

lib/email/receiver.rb

cad7fc106


      
            try_to_encode(string, "UTF-8")
          end
          
          def try_to_encode(string, encoding)
            string.encode("UTF-8", encoding)
          rescue Encoding::InvalidByteSequenceError, Encoding::UndefinedConversionError
            nil
          end
          
          def previous_replies_regex
            @previous_replies_regex ||= /^---\n\*#{I18n.t("user_notifications.previous_discussion")}\*\n/im
          end
          
          def trim_discourse_markers(reply)
            reply.split(previous_replies_regex)[0]
          end
          
          def from
            @from ||= @mail[:from].address_list.addresses.first
          end

This issue has been raised before:

zogstrip · 2016 年2 月 11 日 17:49

I guess it doesn’t really matter since most people (except geeks) use HTML views

https://github.com/discourse/discourse/commit/86819f08c3294313b9b414f3c38644e4a60284c8

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Previous Replies separator is not RFC-compliant

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