fixes #2198

app/logical/alias_and_implication_importer.rb

@@ -8,7 +8,7 @@ class AliasAndImplicationImporter
   end
 
   def process!
-    tokens = tokenize(text)
+    tokens = AliasAndImplicationImporter.tokenize(text)
     parse(tokens)
   end
 
@@ -16,9 +16,8 @@ class AliasAndImplicationImporter
     @rename_aliased_pages == "1"
   end
 
-private
+  def self.tokenize(text)
-
+    text = text.dup
-  def tokenize(text)
     text.gsub!(/^\s+/, "")
     text.gsub!(/\s+$/, "")
     text.gsub!(/ {2,}/, " ")
@@ -41,6 +40,8 @@ private
     end
   end
 
+private
+
   def parse(tokens)
     ActiveRecord::Base.transaction do
       tokens.map do |token|

app/models/bulk_update_request.rb

@@ -8,6 +8,7 @@ class BulkUpdateRequest < ActiveRecord::Base
   validates_presence_of :script
   validates_presence_of :title
   validates_inclusion_of :status, :in => %w(pending approved rejected)
+  validate :script_formatted_correctly
   attr_accessible :user_id, :forum_topic_id, :script, :title, :reason
   attr_accessible :status, :as => [:admin]
   before_validation :initialize_attributes, :on => :create
@@ -35,4 +36,12 @@ class BulkUpdateRequest < ActiveRecord::Base
     self.user_id = CurrentUser.user.id unless self.user_id
     self.status = "pending"
   end
+
+  def script_formatted_correctly
+    AliasAndImplicationImporter.tokenize(script)
+    return true
+  rescue StandardError => e
+    errors.add(:base, e.message)
+    return false
+  end
 end