/**
* Validate a Credit Card Number
*
* Strips out unwanted characters, then applies a simple length test (13-16
* digits) and the MOD 10 algorithm.
*
* @param string $data Field data
* @return string Credit card number (digits only)
* @throws FieldException
*/
public function validate($data)
{
$data = parent::validate($data);
// Strip out unwanted characters
$data = preg_replace("|[^0-9]|", "", $data);
// Test the number's length
if (strlen($data) < 13 || strlen($data) > 16) {
throw new FieldException();
}
// Apply the MOD 10 algorithm
$revNumber = strrev($data);
$numSum = 0;
for ($i = 0; $i < strlen($revNumber); $i++) {
$currentNum = substr($revNumber, $i, 1);
// Double every second digit
$currentNum = $i % 2 == 1 ? $currentNum * 2 : $currentNum;
// Add digits of 2-digit numbers together
if ($currentNum > 9) {
$firstNum = $currentNum % 10;
$secondNum = ($currentNum - $firstNum) / 10;
$currentNum = $firstNum + $secondNum;
}
$numSum += $currentNum;
}
if ($numSum % 10 != 0) {
// The CC number failed the MOD 10 test
throw new FieldException();
}
return $data;
}
/**
* Validate a Credit Card Expiration date
*
* Expects a date in the following format: MM/YY.
*
* @param string $data Field data
* @return int Date as a timestamp value
* @throws InvalidDateException
*/
public function validate($data)
{
$data = parent::validate($data);
// Seperate the components of the expiration date
$components = explode("/", $data);
if ($components[0] == $data) {
// Seperator not found
throw new FieldException();
}
// Test the length of the components
if (strlen($components[0]) > 2 || strlen($components[1]) > 2) {
throw new FieldException();
}
// Construct a timestamp that is exactly 1 second before midnight on the last
// day of the expiration month
$month = intval($components[0]) + 1 == 13 ? 1 : intval($components[0]);
$year = 2000 + intval($components[1]);
$day = 1;
$expireTS = mktime(0, 0, 0, $month, $day, $year) - 1;
if ($expiraTS === false || $expireTS == -1 || $expireTS < time()) {
// The expire date is either invalid or already past
throw new FieldException();
}
return $data;
}
/**
* Validates a given value thereby considering the state of the field
* that a specific validator instance is related to.
*
* @param mixed $value
*
* @return boolean
*/
public function validate($value)
{
$is_valid = parent::validate($value);
if (true === $is_valid) {
$is_valid = 1 === preg_match('/^\\{?[0-9a-f]{8}\\-?[0-9a-f]{4}\\-?[0-9a-f]{4}\\-?' . '[0-9a-f]{4}\\-?[0-9a-f]{12}\\}?$/i', $value);
}
return $is_valid;
}
/**
* Validate a Email Field
*
* Email fields are text fields that must contain a legal e-mail address.
*
* @param string $data Field data
* @return string Data in MD5 form
* @throws FieldException, FieldSizeException
*/
public function validate($data)
{
$data = parent::validate($data);
if (!preg_match('"^[-!#$%&\'*+\\\\./0-9=?A-Z^_`a-z{|}~]+' . '@' . '[-!#$%&\'*+\\\\/0-9=?A-Z^_`a-z{|}~]+\\.' . '[-!#$%&\'*+\\\\./0-9=?A-Z^_`a-z{|}~]+$"', $data)) {
// Not a valid email address
throw new EmailFieldException();
}
return $data;
}
public function validate($value)
{
if (!parent::validate($value)) {
return false;
}
if (!empty($value)) {
return filter_var((string) $value, FILTER_VALIDATE_EMAIL);
}
return true;
}
/**
* Validates a given value thereby considering the state of the field
* that a specific validator instance is related to.
*
* @param mixed $value
*
* @return boolean
*/
public function validate($value)
{
if (is_array($value)) {
foreach ($value as $text) {
if (!parent::validate($text)) {
return false;
}
}
} elseif (!is_null($value)) {
return false;
}
return true;
}
/**
* Validate a Telephone Field
*
* A telephone numbers may only contain numbers, the following charaters, and a space:
* + ( ) -
* Any other characters will throw an InvalidTelephoneException. Any of the above
* characters will be thrown out and the resulting string will be in the following
* format:
* +y-x
* Where 'y' is the international calling code and 'x' is the phone number. If
* there is no '+y' in the string then the international calling code is assumed
* to be +1 (United States). If there is a '+y' in the string, it must be followed
* by either a '-' or a ' ', then a telephone number.
*
* @param string $data Field data
* @return string This function may alter data before validating it, if so this is the result
* @throws InvalidTelephoneException
*/
public function validate($data)
{
$data = parent::validate($data);
$data = $this->validatePhoneNumber($data);
return $data;
}
/**
* Validate a Password Field
*
* A password field is the same as a text except that the data is returned as
* a MD5 hash.
*
* @param string $data Field data
* @return string Data in MD5 form
* @throws FieldException, FieldSizeException
*/
public function validate($data)
{
return md5(parent::validate($data));
}
/**
* Validate a Date Field
*
* Date's may only contain numbers, seperated by a '/' or a '-', be in one of
* the following formats: MM/DD/YYYY, DD/MM/YYYY (the year may also be 2 digits
* instead of 4), and must be a legal date.
*
* @param string $data Field data
* @return int Date as a timestamp value
* @throws InvalidDateException
*/
public function validate($data)
{
$data = parent::validate($data);
$data = $this->validateDate($data);
return $data;
}
