switch to email_reply_trimmer from discourse

1 files changed, 4 insertions, 26 deletions

diff --git a/lib/gitlab/email/reply_parser.rb b/lib/gitlab/email/reply_parser.rb
index f586c5ab062..e53a99cd8e0 100644
--- a/lib/gitlab/email/reply_parser.rb
+++ b/lib/gitlab/email/reply_parser.rb
@@ -13,9 +13,11 @@ module Gitlab
 
         encoding = body.encoding
 
-        body = discourse_email_trimmer(body)
+        body = EmailReplyTrimmer.trim(body)
 
-        body = EmailReplyParser.parse_reply(body)
+        # TODO [jneen]: do we want to allow empty-quoting? (replies only containing a blockquote)
+        # EmailReplyTrimmer allows this as a special case, so we detect it manually here.
+        return "" if body.lines.all? { |l| l.strip.empty? || l.start_with?('>') }
 
         body.force_encoding(encoding).encode("UTF-8")
       end
@@ -57,30 +59,6 @@ module Gitlab
       rescue
         nil
       end
-
-      REPLYING_HEADER_LABELS = %w(From Sent To Subject Reply To Cc Bcc Date)
-      REPLYING_HEADER_REGEX = Regexp.union(REPLYING_HEADER_LABELS.map { |label| "#{label}:" })
-
-      def discourse_email_trimmer(body)
-        lines = body.scrub.lines.to_a
-        range_end = 0
-
-        lines.each_with_index do |l, idx|
-          # This one might be controversial but so many reply lines have years, times and end with a colon.
-          # Let's try it and see how well it works.
-          break if (l =~ /\d{4}/ && l =~ /\d:\d\d/ && l =~ /\:$/) ||
-              (l =~ /On \w+ \d+,? \d+,?.*wrote:/)
-
-          # Headers on subsequent lines
-          break if (0..2).all? { |off| lines[idx + off] =~ REPLYING_HEADER_REGEX }
-          # Headers on the same line
-          break if REPLYING_HEADER_LABELS.count { |label| l.include?(label) } >= 3
-
-          range_end = idx
-        end
-
-        lines[0..range_end].join.strip
-      end
     end
   end
 end