fix inconsistent image filename extensions (#9638)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7891 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -537,7 +537,7 @@ module ApplicationHelper
     # when using an image link, try to use an attachment, if possible
     if options[:attachments] || (obj && obj.respond_to?(:attachments))
       attachments = nil
-      text.gsub!(/src="([^\/"]+\.(bmp|gif|jpg|jpeg|png))"(\s+alt="([^"]*)")?/i) do |m|
+      text.gsub!(/src="([^\/"]+\.(bmp|gif|jpg|jpe|jpeg|png))"(\s+alt="([^"]*)")?/i) do |m|
         filename, ext, alt, alttext = $1.downcase, $2, $3, $4
         attachments ||= (options[:attachments] || obj.attachments).sort_by(&:created_on).reverse
         # search for the picture in attachments

app/models/attachment.rb

@@ -123,7 +123,7 @@ class Attachment < ActiveRecord::Base
   end
 
   def image?
-    self.filename =~ /\.(jpe?g|gif|png)$/i
+    self.filename =~ /\.(bmp|gif|jpg|jpe|jpeg|png)$/i
   end
 
   def is_text?