Файл: library/Zend/Validate/Barcode/AdapterAbstract.php
Строк: 207
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: AdapterAbstract.php 20785 2010-01-31 09:43:03Z mikaelkael $
*/
/**
* @see Zend_Validate_Barcode_AdapterInterface
*/
require_once 'Zend/Validate/Barcode/AdapterInterface.php';
/**
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Validate_Barcode_AdapterAbstract
implements Zend_Validate_Barcode_AdapterInterface
{
/**
* Allowed barcode lengths
* @var integer|array|string
*/
protected $_length;
/**
* Allowed barcode characters
* @var string
*/
protected $_characters;
/**
* Callback to checksum function
* @var string|array
*/
protected $_checksum;
/**
* Is a checksum value included?
* @var boolean
*/
protected $_hasChecksum = true;
/**
* Checks the length of a barcode
*
* @param string $value The barcode to check for proper length
* @return boolean
*/
public function checkLength($value)
{
if (!is_string($value)) {
return false;
}
$fixum = strlen($value);
$found = false;
$length = $this->getLength();
if (is_array($length)) {
foreach ($length as $value) {
if ($fixum == $value) {
$found = true;
}
if ($value == -1) {
$found = true;
}
}
} elseif ($fixum == $length) {
$found = true;
} elseif ($length == -1) {
$found = true;
} elseif ($length == 'even') {
$count = $fixum % 2;
$found = ($count == 0) ? true : false;
} elseif ($length == 'odd') {
$count = $fixum % 2;
$found = ($count == 1) ? true : false;
}
return $found;
}
/**
* Checks for allowed characters within the barcode
*
* @param string $value The barcode to check for allowed characters
* @return boolean
*/
public function checkChars($value)
{
if (!is_string($value)) {
return false;
}
$characters = $this->getCharacters();
if ($characters == 128) {
for ($x = 0; $x < 128; ++$x) {
$value = str_replace(chr($x), '', $value);
}
} else {
$chars = str_split($characters);
foreach ($chars as $char) {
$value = str_replace($char, '', $value);
}
}
if (strlen($value) > 0) {
return false;
}
return true;
}
/**
* Validates the checksum
*
* @param string $value The barcode to check the checksum for
* @return boolean
*/
public function checksum($value)
{
$checksum = $this->getChecksum();
if (!empty($checksum)) {
if (method_exists($this, $checksum)) {
return call_user_func(array($this, $checksum), $value);
}
}
return false;
}
/**
* Returns the allowed barcode length
*
* @return string
*/
public function getLength()
{
return $this->_length;
}
/**
* Returns the allowed characters
*
* @return integer|string
*/
public function getCharacters()
{
return $this->_characters;
}
/**
* Returns the checksum function name
*
*/
public function getChecksum()
{
return $this->_checksum;
}
/**
* Returns if barcode uses checksum
*
* @return boolean
*/
public function getCheck()
{
return $this->_hasChecksum;
}
/**
* Sets the checksum validation
*
* @param boolean $check
* @return Zend_Validate_Barcode_AdapterAbstract
*/
public function setCheck($check)
{
$this->_hasChecksum = (boolean) $check;
return $this;
}
/**
* Validates the checksum (Modulo 10)
* GTIN implementation factor 3
*
* @param string $value The barcode to validate
* @return boolean
*/
protected function _gtin($value)
{
$barcode = substr($value, 0, -1);
$sum = 0;
$length = strlen($barcode) - 1;
for ($i = 0; $i <= $length; $i++) {
if (($i % 2) === 0) {
$sum += $barcode[$length - $i] * 3;
} else {
$sum += $barcode[$length - $i];
}
}
$calc = $sum % 10;
$checksum = ($calc === 0) ? 0 : (10 - $calc);
if ($value[$length + 1] != $checksum) {
return false;
}
return true;
}
/**
* Validates the checksum (Modulo 10)
* IDENTCODE implementation factors 9 and 4
*
* @param string $value The barcode to validate
* @return boolean
*/
protected function _identcode($value)
{
$barcode = substr($value, 0, -1);
$sum = 0;
$length = strlen($value) - 2;
for ($i = 0; $i <= $length; $i++) {
if (($i % 2) === 0) {
$sum += $barcode[$length - $i] * 4;
} else {
$sum += $barcode[$length - $i] * 9;
}
}
$calc = $sum % 10;
$checksum = ($calc === 0) ? 0 : (10 - $calc);
if ($value[$length + 1] != $checksum) {
return false;
}
return true;
}
/**
* Validates the checksum (Modulo 10)
* CODE25 implementation factor 3
*
* @param string $value The barcode to validate
* @return boolean
*/
protected function _code25($value)
{
$barcode = substr($value, 0, -1);
$sum = 0;
$length = strlen($barcode) - 1;
for ($i = 0; $i <= $length; $i++) {
if (($i % 2) === 0) {
$sum += $barcode[$i] * 3;
} else {
$sum += $barcode[$i];
}
}
$calc = $sum % 10;
$checksum = ($calc === 0) ? 0 : (10 - $calc);
if ($value[$length + 1] != $checksum) {
return false;
}
return true;
}
/**
* Validates the checksum ()
* POSTNET implementation
*
* @param string $value The barcode to validate
* @return boolean
*/
protected function _postnet($value)
{
$checksum = substr($value, -1, 1);
$values = str_split(substr($value, 0, -1));
$check = 0;
foreach($values as $row) {
$check += $row;
}
$check %= 10;
$check = 10 - $check;
if ($check == $checksum) {
return true;
}
return false;
}
}