From b9a0aa7ee24364a2fe025f9482fcff969b2a133d Mon Sep 17 00:00:00 2001
From: Alex Shulgin <ash@commandprompt.com>
Date: Mon, 25 Feb 2013 13:26:07 -0800
Subject: [PATCH] Only try to strip HTML tags from email when actually parsing
 text/html MIME part.

---
 app/models/mail_handler.rb |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/app/models/mail_handler.rb b/app/models/mail_handler.rb
index f8fea89..c04d3c6 100644
--- a/app/models/mail_handler.rb
+++ b/app/models/mail_handler.rb
@@ -386,8 +386,11 @@ def plain_text_body
     @plain_text_body = Redmine::CodesetUtil.to_utf8(part.body.decoded, part.charset)
 
     # strip html tags and remove doctype directive
-    @plain_text_body = strip_tags(@plain_text_body.strip)
-    @plain_text_body.sub! %r{^<!DOCTYPE .*$}, ''
+    if part.mime_type == 'text/html'
+      @plain_text_body = strip_tags(@plain_text_body.strip)
+      @plain_text_body.sub! %r{^<!DOCTYPE .*$}, ''
+    end
+
     @plain_text_body
   end
 
-- 
1.7.10