Update auth_helper.rb

app/helpers/auth_helper.rb

@@ -11,8 +11,17 @@
 module AuthHelper
 
   def require_user
-    if !User.current.logged?
-      render :file => "public/401.html.erb", :status => :unauthorized, :layout =>true
+    if params[:token]
+      token = CustomerToken.where("token = ? and expires_at > ?", params[:token], Time.now)
+      if token.nil?
+        redirect_to :back, :flash => {:error => "Bad link"} 
+      else
+        render :issue => Issue.find token.issue_id
+      end
+    else
+      if !User.current.logged?
+        render :file => "public/401.html.erb", :status => :unauthorized, :layout =>true
+      end
     end
   end
 end