tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form. * @param JForm $form The form object for which the field is being tested. * * @return boolean True if the value is valid, false otherwise. * * @since 11.1 * @link http://www.w3.org/Addressing/URL/url-spec.txt * @see Jstring */ public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null) { // If the field is empty and not required, the field is valid. $required = ((string) $element['required'] == 'true' || (string) $element['required'] == 'required'); if (!$required && empty($value)) { return true; } $urlParts = JString::parse_url($value); // See http://www.w3.org/Addressing/URL/url-spec.txt // Use the full list or optionally specify a list of permitted schemes. if ($element['schemes'] == '') { $scheme = array('http', 'https', 'ftp', 'ftps', 'gopher', 'mailto', 'news', 'prospero', 'telnet', 'rlogin', 'tn3270', 'wais', 'url', 'mid', 'cid', 'nntp', 'tel', 'urn', 'ldap', 'file', 'fax', 'modem', 'git'); } else { $scheme = explode(',', $element['schemes']); } /* * This rule is only for full URLs with schemes because parse_url does not parse * accurately without a scheme. * @see http://php.net/manual/en/function.parse-url.php */ if ($urlParts && !array_key_exists('scheme', $urlParts)) { return false; } $urlScheme = (string) $urlParts['scheme']; $urlScheme = strtolower($urlScheme); if (in_array($urlScheme, $scheme) == false) { return false; } // For some schemes here must be two slashes. if (($urlScheme == 'http' || $urlScheme == 'https' || $urlScheme == 'ftp' || $urlScheme == 'sftp' || $urlScheme == 'gopher' || $urlScheme == 'wais' || $urlScheme == 'gopher' || $urlScheme == 'prospero' || $urlScheme == 'telnet' || $urlScheme == 'git') && ((substr($value, strlen($urlScheme), 3)) !== '://')) { return false; } // The best we can do for the rest is make sure that the strings are valid UTF-8 // and the port is an integer. if (array_key_exists('host', $urlParts) && !JString::valid((string) $urlParts['host'])) { return false; } if (array_key_exists('port', $urlParts) && !is_int((int) $urlParts['port'])) { return false; } if (array_key_exists('path', $urlParts) && !JString::valid((string) $urlParts['path'])) { return false; } return true; } }