Quote ' in attachment filename also must encoded to hex string.

Also skip encoded slashes in the path.

Author: landy2005

README

@@ -71,7 +71,7 @@ Transform texts to textile format:
 Components:      23/23
 Milestones:      35/35
 Tickets:         2203/2203
-Ticket files:    262/263
+Ticket files:    263/263
 Custom values:   4200/4200
-Wiki edits:      4380/4380
-Wiki files:      36/75
+Wiki edits:      4379/4379
+Wiki files:      75/75

migrate_from_trac.rake

@@ -153,8 +153,8 @@ namespace :redmine do
       private
         def trac_fullpath
           attachment_type = read_attribute(:type)
-          trac_file = filename.gsub( /[^a-zA-Z0-9\-_\.!~*']/n ) {|x| sprintf('%%%02X', x[0]) }
-          trac_dir = id.gsub( /[^a-zA-Z0-9\-_\.!~*']/n ) {|x| sprintf('%%%02X', x[0]) }
+          trac_file = filename.gsub( /[^a-zA-Z0-9\-_\.!~*]/n ) {|x| sprintf('%%%02X', x[0]) }
+          trac_dir = id.gsub( /[^a-zA-Z0-9\-_\.!~*\\\/]/n ) {|x| sprintf('%%%02X', x[0]) }
           "#{TracMigrate.trac_attachments_directory}/#{attachment_type}/#{trac_dir}/#{trac_file}"
         end
       end