Question

I have a bug to fix in work where the UK Pound symbol, £, is allowed in the domain name.

I checked the EmailValidator source and can see that it is not a disallowed symbol, whereas things like the dollar sign are:

public class EmailValidator extends Validator
{
    include "../core/Version.as";

    //--------------------------------------------------------------------------
    //
    //  Class constants
    //
    //--------------------------------------------------------------------------

    /**
     *  @private
     */
    private static const DISALLOWED_LOCALNAME_CHARS:String =
                                "()<>,;:\\\"[] `~!#$%^&*={}|/?'";
    /**
     *  @private
     */                         
    private static const DISALLOWED_DOMAIN_CHARS:String =
                                "()<>,;:\\\"[] `~!#$%^&*+={}|/?'";

As you can see DISALLOWED_DOMAIN_CHARS string does not include the £ sign. Was thinking of monkey patching (basically copying the entire class, editing it, and adding it to my src – for those not in the know), but we use RSL’s, so that would be problematic.

Any ideas folks?

Answer 1

I think You should override the method doValidation of Class mx.validators.EmailValidator like this rather than clone a Class

override protected function doValidation(value:Object):Array
        {
            var results:Array =  super.doValidation(value);

            var emailStr:String = String(value);
            var poundPos:int = emailStr.indexOf("£");
            if (poundPos != -1)
            {
                results.push(new ValidationResult(
                    true, null, "invalidChar",
                    this.invalidCharError));

            }

            return results;                      
        }

Hopes that helps