<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Validator\Barcode;
use Zend\Stdlib\StringUtils;
use Zend\Stdlib\StringWrapper\StringWrapperInterface;
use Zend\Validator\Exception;
class Code128 extends AbstractAdapter
{
/**
* The used string wrapper used for basic UTF-8 string functions
*
* @var StringWrapperInterface
*/
protected $utf8StringWrapper;
/**
* Constructor for this barcode adapter
*/
public function __construct()
{
$this->setLength(-1);
$this->setCharacters(array(
'A' => array(
0 => ' ', 1 => '!', 2 => '"', 3 => '#', 4 => '$', 5 => '%', 6 => '&', 7 => "'",
8 => '(', 9 => ')', 10 => '*', 11 => '+', 12 => ',', 13 => '-', 14 => '.', 15 => '/',
16 => '0', 17 => '1', 18 => '2', 19 => '3', 20 => '4', 21 => '5', 22 => '6', 23 => '7',
24 => '8', 25 => '9', 26 => ':', 27 => ';', 28 => '<', 29 => '=', 30 => '>', 31 => '?',
32 => '@', 33 => 'A', 34 => 'B', 35 => 'C', 36 => 'D', 37 => 'E', 38 => 'F', 39 => 'G',
40 => 'H', 41 => 'I', 42 => 'J', 43 => 'K', 44 => 'L', 45 => 'M', 46 => 'N', 47 => 'O',
48 => 'P', 49 => 'Q', 50 => 'R', 51 => 'S', 52 => 'T', 53 => 'U', 54 => 'V', 55 => 'W',
56 => 'X', 57 => 'Y', 58 => 'Z', 59 => '[', 60 => '\\',61 => ']', 62 => '^', 63 => '_',
64 =>0x00, 65 =>0x01, 66 =>0x02, 67 =>0x03, 68 =>0x04, 69 =>0x05, 70 =>0x06, 71 =>0x07,
72 =>0x08, 73 =>0x09, 74 =>0x0A, 75 =>0x0B, 76 =>0x0C, 77 =>0x0D, 78 =>0x0E, 79 =>0x0F,
80 =>0x10, 81 =>0x11, 82 =>0x12, 83 =>0x13, 84 =>0x14, 85 =>0x15, 86 =>0x16, 87 =>0x17,
88 =>0x18, 89 =>0x19, 90 =>0x1A, 91 =>0x1B, 92 =>0x1C, 93 =>0x1D, 94 =>0x1E, 95 =>0x1F,
96 => 'Ç', 97 => 'ü', 98 => 'é', 99 => 'â',100 => 'ä',101 => 'à',102 => 'å',103 => '‡',
104 => 'ˆ',105 => '‰',106 => 'Š'),
'B' => array(
0 => ' ', 1 => '!', 2 => '"', 3 => '#', 4 => '$', 5 => '%', 6 => '&', 7 => "'",
8 => '(', 9 => ')', 10 => '*', 11 => '+', 12 => ',', 13 => '-', 14 => '.', 15 => '/',
16 => '0', 17 => '1', 18 => '2', 19 => '3', 20 => '4', 21 => '5', 22 => '6', 23 => '7',
24 => '8', 25 => '9', 26 => ':', 27 => ';', 28 => '<', 29 => '=', 30 => '>', 31 => '?',
32 => '@', 33 => 'A', 34 => 'B', 35 => 'C', 36 => 'D', 37 => 'E', 38 => 'F', 39 => 'G',
40 => 'H', 41 => 'I', 42 => 'J', 43 => 'K', 44 => 'L', 45 => 'M', 46 => 'N', 47 => 'O',
48 => 'P', 49 => 'Q', 50 => 'R', 51 => 'S', 52 => 'T', 53 => 'U', 54 => 'V', 55 => 'W',
56 => 'X', 57 => 'Y', 58 => 'Z', 59 => '[', 60 => '\\',61 => ']', 62 => '^', 63 => '_',
64 => '`', 65 => 'a', 66 => 'b', 67 => 'c', 68 => 'd', 69 => 'e', 70 => 'f', 71 => 'g',
72 => 'h', 73 => 'i', 74 => 'j', 75 => 'k', 76 => 'l', 77 => 'm', 78 => 'n', 79 => 'o',
80 => 'p', 81 => 'q', 82 => 'r', 83 => 's', 84 => 't', 85 => 'u', 86 => 'v', 87 => 'w',
88 => 'x', 89 => 'y', 90 => 'z', 91 => '{', 92 => '|', 93 => '}', 94 => '~', 95 =>0x7F,
96 => 'Ç', 97 => 'ü', 98 => 'é', 99 => 'â',100 => 'ä',101 => 'à',102 => 'å',103 => '‡',
104 => 'ˆ',105 => '‰',106 => 'Š'),
'C' => array(
0 => '00', 1 => '01', 2 => '02', 3 => '03', 4 => '04', 5 => '05', 6 => '06', 7 => '07',
8 => '08', 9 => '09', 10 => '10', 11 => '11', 12 => '12', 13 => '13', 14 => '14', 15 => '15',
16 => '16', 17 => '17', 18 => '18', 19 => '19', 20 => '20', 21 => '21', 22 => '22', 23 => '23',
24 => '24', 25 => '25', 26 => '26', 27 => '27', 28 => '28', 29 => '29', 30 => '30', 31 => '31',
32 => '32', 33 => '33', 34 => '34', 35 => '35', 36 => '36', 37 => '37', 38 => '38', 39 => '39',
40 => '40', 41 => '41', 42 => '42', 43 => '43', 44 => '44', 45 => '45', 46 => '46', 47 => '47',
48 => '48', 49 => '49', 50 => '50', 51 => '51', 52 => '52', 53 => '53', 54 => '54', 55 => '55',
56 => '56', 57 => '57', 58 => '58', 59 => '59', 60 => '60', 61 => '61', 62 => '62', 63 => '63',
64 => '64', 65 => '65', 66 => '66', 67 => '67', 68 => '68', 69 => '69', 70 => '70', 71 => '71',
72 => '72', 73 => '73', 74 => '74', 75 => '75', 76 => '76', 77 => '77', 78 => '78', 79 => '79',
80 => '80', 81 => '81', 82 => '82', 83 => '83', 84 => '84', 85 => '85', 86 => '86', 87 => '87',
88 => '88', 89 => '89', 90 => '90', 91 => '91', 92 => '92', 93 => '93', 94 => '94', 95 => '95',
96 => '96', 97 => '97', 98 => '98', 99 => '99',100 => 'ä', 101 => 'à', 102 => 'å', 103 => '‡',
104 => 'ˆ', 105 => '‰', 106 => 'Š')));
$this->setChecksum('code128');
}
public function setUtf8StringWrapper(StringWrapperInterface $utf8StringWrapper)
{
if (!$utf8StringWrapper->isSupported('UTF-8')) {
throw new Exception\InvalidArgumentException(
"The string wrapper needs to support UTF-8 character encoding"
);
}
$this->utf8StringWrapper = $utf8StringWrapper;
}
/**
* Get the string wrapper supporting UTF-8 character encoding
*
* @return StringWrapperInterface
*/
public function getUtf8StringWrapper()
{
if (!$this->utf8StringWrapper) {
$this->utf8StringWrapper = StringUtils::getWrapper('UTF-8');
}
return $this->utf8StringWrapper;
}
/**
* Checks for allowed characters within the barcode
*
* @param string $value The barcode to check for allowed characters
* @return bool
*/
public function hasValidCharacters($value)
{
if (!is_string($value)) {
return false;
}
// get used string wrapper for UTF-8 character encoding
$strWrapper = $this->getUtf8StringWrapper();
// detect starting charset
$set = $this->getCodingSet($value);
$read = $set;
if ($set != '') {
$value = $strWrapper->substr($value, 1, null);
}
// process barcode
while ($value != '') {
$char = $strWrapper->substr($value, 0, 1);
switch ($char) {
// Function definition
case 'Ç' :
case 'ü' :
case 'å' :
break;
// Switch 1 char between A and B
case 'é' :
if ($set == 'A') {
$read = 'B';
} elseif ($set == 'B') {
$read = 'A';
}
break;
// Switch to C
case 'â' :
$set = 'C';
$read = 'C';
break;
// Switch to B
case 'ä' :
$set = 'B';
$read = 'B';
break;
// Switch to A
case 'à' :
$set = 'A';
$read = 'A';
break;
// Doubled start character
case '‡' :
case 'ˆ' :
case '‰' :
return false;
break;
// Chars after the stop character
case 'Š' :
break 2;
default:
// Does the char exist within the charset to read?
if ($this->ord128($char, $read) == -1) {
return false;
}
break;
}
$value = $strWrapper->substr($value, 1, null);
$read = $set;
}
if (($value != '') && ($strWrapper->strlen($value) != 1)) {
return false;
}
return true;
}
/**
* Validates the checksum ()
*
* @param string $value The barcode to validate
* @return bool
*/
protected function code128($value)
{
$sum = 0;
$pos = 1;
$set = $this->getCodingSet($value);
$read = $set;
$usecheck = $this->useChecksum(null);
$strWrapper = $this->getUtf8StringWrapper();
$char = $strWrapper->substr($value, 0, 1);
if ($char == '‡') {
$sum = 103;
} elseif ($char == 'ˆ') {
$sum = 104;
} elseif ($char == '‰') {
$sum = 105;
} elseif ($usecheck == true) {
// no start value, unable to detect an proper checksum
return false;
}
$value = $strWrapper->substr($value, 1, null);
while ($strWrapper->strpos($value, 'Š') || ($value != '')) {
$char = $strWrapper->substr($value, 0, 1);
if ($read == 'C') {
$char = $strWrapper->substr($value, 0, 2);
}
switch ($char) {
// Function definition
case 'Ç' :
case 'ü' :
case 'å' :
$sum += ($pos * $this->ord128($char, $set));
break;
case 'é' :
$sum += ($pos * $this->ord128($char, $set));
if ($set == 'A') {
$read = 'B';
} elseif ($set == 'B') {
$read = 'A';
}
break;
// Switch to C
case 'â' :
$sum += ($pos * $this->ord128($char, $set));
$set = 'C';
$read = 'C';
break;
// Switch to B
case 'ä' :
$sum += ($pos * $this->ord128($char, $set));
$set = 'B';
$read = 'B';
break;
// Switch to A
case 'à' :
$sum += ($pos * $this->ord128($char, $set));
$set = 'A';
$read = 'A';
break;
case '‡' :
case 'ˆ' :
case '‰' :
return false;
break;
default:
// Does the char exist within the charset to read?
if ($this->ord128($char, $read) == -1) {
return false;
}
$sum += ($pos * $this->ord128($char, $set));
break;
}
$value = $strWrapper->substr($value, 1);
++$pos;
if (($strWrapper->strpos($value, 'Š') == 1) && ($strWrapper->strlen($value) == 2)) {
// break by stop and checksum char
break;
}
$read = $set;
}
if (($strWrapper->strpos($value, 'Š') != 1) || ($strWrapper->strlen($value) != 2)) {
// return false if checksum is not readable and true if no startvalue is detected
return (!$usecheck);
}
$mod = $sum % 103;
if ($strWrapper->substr($value, 0, 1) == $this->chr128($mod, $set)) {
return true;
}
return false;
}
/**
* Returns the coding set for a barcode
*
* @param string $value Barcode
* @return string
*/
protected function getCodingSet($value)
{
$value = $this->getUtf8StringWrapper()->substr($value, 0, 1);
switch ($value) {
case '‡' :
return 'A';
break;
case 'ˆ' :
return 'B';
break;
case '‰' :
return 'C';
break;
}
return '';
}
/**
* Internal method to return the code128 integer from an ascii value
*
* Table A
* ASCII CODE128
* 32 to 95 == 0 to 63
* 0 to 31 == 64 to 95
* 128 to 138 == 96 to 106
*
* Table B
* ASCII CODE128
* 32 to 138 == 0 to 106
*
* Table C
* ASCII CODE128
* "00" to "99" == 0 to 99
* 132 to 138 == 100 to 106
*
* @param string $value
* @param string $set
* @return int
*/
protected function ord128($value, $set)
{
$ord = ord($value);
if ($set == 'A') {
if ($ord < 32) {
return ($ord + 64);
} elseif ($ord < 96) {
return ($ord - 32);
} elseif ($ord > 138) {
return -1;
} else {
return ($ord - 32);
}
} elseif ($set == 'B') {
if ($ord < 32) {
return -1;
} elseif ($ord <= 138) {
return ($ord - 32);
} else {
return -1;
}
} elseif ($set == 'C') {
$val = (int) $value;
if (($val >= 0) && ($val <= 99)) {
return $val;
} elseif (($ord >= 132) && ($ord <= 138)) {
return ($ord - 32);
} else {
return -1;
}
} else {
if ($ord < 32) {
return ($ord +64);
} elseif ($ord <= 138) {
return ($ord - 32);
} else {
return -1;
}
}
}
/**
* Internal Method to return the ascii value from an code128 integer
*
* Table A
* ASCII CODE128
* 32 to 95 == 0 to 63
* 0 to 31 == 64 to 95
* 128 to 138 == 96 to 106
*
* Table B
* ASCII CODE128
* 32 to 138 == 0 to 106
*
* Table C
* ASCII CODE128
* "00" to "99" == 0 to 99
* 132 to 138 == 100 to 106
*
* @param int $value
* @param string $set
* @return string
*/
protected function chr128($value, $set)
{
if ($set == 'A') {
if ($value < 64) {
return chr($value + 32);
} elseif ($value < 96) {
return chr($value - 64);
} elseif ($value > 106) {
return -1;
} else {
return chr($value + 32);
}
} elseif ($set == 'B') {
if ($value > 106) {
return -1;
} else {
return chr($value + 32);
}
} elseif ($set == 'C') {
if (($value >= 0) && ($value <= 9)) {
return "0" . (string) $value;
} elseif ($value <= 99) {
return (string) $value;
} elseif ($value <= 106) {
return chr($value + 32);
} else {
return -1;
}
} else {
if ($value <= 106) {
return ($value + 32);
} else {
return -1;
}
}
}
}