You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
729 lines
24 KiB
729 lines
24 KiB
<?php
|
|
/*
|
|
* PHP QR Code encoder
|
|
*
|
|
* Input encoding class
|
|
*
|
|
* Based on libqrencode C library distributed under LGPL 2.1
|
|
* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
|
|
*
|
|
* PHP QR Code is distributed under LGPL 3
|
|
* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
define('STRUCTURE_HEADER_BITS', 20);
|
|
define('MAX_STRUCTURED_SYMBOLS', 16);
|
|
|
|
class QRinputItem {
|
|
|
|
public $mode;
|
|
public $size;
|
|
public $data;
|
|
public $bstream;
|
|
|
|
public function __construct($mode, $size, $data, $bstream = null)
|
|
{
|
|
$setData = array_slice($data, 0, $size);
|
|
|
|
if (count($setData) < $size) {
|
|
$setData = array_merge($setData, array_fill(0,$size-count($setData),0));
|
|
}
|
|
|
|
if(!QRinput::check($mode, $size, $setData)) {
|
|
throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
|
|
return null;
|
|
}
|
|
|
|
$this->mode = $mode;
|
|
$this->size = $size;
|
|
$this->data = $setData;
|
|
$this->bstream = $bstream;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeModeNum($version)
|
|
{
|
|
try {
|
|
|
|
$words = (int)($this->size / 3);
|
|
$bs = new QRbitstream();
|
|
|
|
$val = 0x1;
|
|
$bs->appendNum(4, $val);
|
|
$bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
|
|
|
|
for($i=0; $i<$words; $i++) {
|
|
$val = (ord($this->data[$i*3 ]) - ord('0')) * 100;
|
|
$val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
|
|
$val += (ord($this->data[$i*3+2]) - ord('0'));
|
|
$bs->appendNum(10, $val);
|
|
}
|
|
|
|
if($this->size - $words * 3 == 1) {
|
|
$val = ord($this->data[$words*3]) - ord('0');
|
|
$bs->appendNum(4, $val);
|
|
} else if($this->size - $words * 3 == 2) {
|
|
$val = (ord($this->data[$words*3 ]) - ord('0')) * 10;
|
|
$val += (ord($this->data[$words*3+1]) - ord('0'));
|
|
$bs->appendNum(7, $val);
|
|
}
|
|
|
|
$this->bstream = $bs;
|
|
return 0;
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeModeAn($version)
|
|
{
|
|
try {
|
|
$words = (int)($this->size / 2);
|
|
$bs = new QRbitstream();
|
|
|
|
$bs->appendNum(4, 0x02);
|
|
$bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
|
|
|
|
for($i=0; $i<$words; $i++) {
|
|
$val = (int)QRinput::lookAnTable(ord($this->data[$i*2 ])) * 45;
|
|
$val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
|
|
|
|
$bs->appendNum(11, $val);
|
|
}
|
|
|
|
if($this->size & 1) {
|
|
$val = QRinput::lookAnTable(ord($this->data[$words * 2]));
|
|
$bs->appendNum(6, $val);
|
|
}
|
|
|
|
$this->bstream = $bs;
|
|
return 0;
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeMode8($version)
|
|
{
|
|
try {
|
|
$bs = new QRbitstream();
|
|
|
|
$bs->appendNum(4, 0x4);
|
|
$bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
|
|
|
|
for($i=0; $i<$this->size; $i++) {
|
|
$bs->appendNum(8, ord($this->data[$i]));
|
|
}
|
|
|
|
$this->bstream = $bs;
|
|
return 0;
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeModeKanji($version)
|
|
{
|
|
try {
|
|
|
|
$bs = new QRbitrtream();
|
|
|
|
$bs->appendNum(4, 0x8);
|
|
$bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
|
|
|
|
for($i=0; $i<$this->size; $i+=2) {
|
|
$val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
|
|
if($val <= 0x9ffc) {
|
|
$val -= 0x8140;
|
|
} else {
|
|
$val -= 0xc140;
|
|
}
|
|
|
|
$h = ($val >> 8) * 0xc0;
|
|
$val = ($val & 0xff) + $h;
|
|
|
|
$bs->appendNum(13, $val);
|
|
}
|
|
|
|
$this->bstream = $bs;
|
|
return 0;
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeModeStructure()
|
|
{
|
|
try {
|
|
$bs = new QRbitstream();
|
|
|
|
$bs->appendNum(4, 0x03);
|
|
$bs->appendNum(4, ord($this->data[1]) - 1);
|
|
$bs->appendNum(4, ord($this->data[0]) - 1);
|
|
$bs->appendNum(8, ord($this->data[2]));
|
|
|
|
$this->bstream = $bs;
|
|
return 0;
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function estimateBitStreamSizeOfEntry($version)
|
|
{
|
|
$bits = 0;
|
|
|
|
if($version == 0)
|
|
$version = 1;
|
|
|
|
switch($this->mode) {
|
|
case QR_MODE_NUM: $bits = QRinput::estimateBitsModeNum($this->size); break;
|
|
case QR_MODE_AN: $bits = QRinput::estimateBitsModeAn($this->size); break;
|
|
case QR_MODE_8: $bits = QRinput::estimateBitsMode8($this->size); break;
|
|
case QR_MODE_KANJI: $bits = QRinput::estimateBitsModeKanji($this->size);break;
|
|
case QR_MODE_STRUCTURE: return STRUCTURE_HEADER_BITS;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
$l = QRspec::lengthIndicator($this->mode, $version);
|
|
$m = 1 << $l;
|
|
$num = (int)(($this->size + $m - 1) / $m);
|
|
|
|
$bits += $num * (4 + $l);
|
|
|
|
return $bits;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function encodeBitStream($version)
|
|
{
|
|
try {
|
|
|
|
unset($this->bstream);
|
|
$words = QRspec::maximumWords($this->mode, $version);
|
|
|
|
if($this->size > $words) {
|
|
|
|
$st1 = new QRinputItem($this->mode, $words, $this->data);
|
|
$st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
|
|
|
|
$st1->encodeBitStream($version);
|
|
$st2->encodeBitStream($version);
|
|
|
|
$this->bstream = new QRbitstream();
|
|
$this->bstream->append($st1->bstream);
|
|
$this->bstream->append($st2->bstream);
|
|
|
|
unset($st1);
|
|
unset($st2);
|
|
|
|
} else {
|
|
|
|
$ret = 0;
|
|
|
|
switch($this->mode) {
|
|
case QR_MODE_NUM: $ret = $this->encodeModeNum($version); break;
|
|
case QR_MODE_AN: $ret = $this->encodeModeAn($version); break;
|
|
case QR_MODE_8: $ret = $this->encodeMode8($version); break;
|
|
case QR_MODE_KANJI: $ret = $this->encodeModeKanji($version);break;
|
|
case QR_MODE_STRUCTURE: $ret = $this->encodeModeStructure(); break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if($ret < 0)
|
|
return -1;
|
|
}
|
|
|
|
return $this->bstream->size();
|
|
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
};
|
|
|
|
//##########################################################################
|
|
|
|
class QRinput {
|
|
|
|
public $items;
|
|
|
|
private $version;
|
|
private $level;
|
|
|
|
//----------------------------------------------------------------------
|
|
public function __construct($version = 0, $level = QR_ECLEVEL_L)
|
|
{
|
|
if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
|
|
throw new Exception('Invalid version no');
|
|
return NULL;
|
|
}
|
|
|
|
$this->version = $version;
|
|
$this->level = $level;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function getVersion()
|
|
{
|
|
return $this->version;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function setVersion($version)
|
|
{
|
|
if($version < 0 || $version > QRSPEC_VERSION_MAX) {
|
|
throw new Exception('Invalid version no');
|
|
return -1;
|
|
}
|
|
|
|
$this->version = $version;
|
|
|
|
return 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function getErrorCorrectionLevel()
|
|
{
|
|
return $this->level;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function setErrorCorrectionLevel($level)
|
|
{
|
|
if($level > QR_ECLEVEL_H) {
|
|
throw new Exception('Invalid ECLEVEL');
|
|
return -1;
|
|
}
|
|
|
|
$this->level = $level;
|
|
|
|
return 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function appendEntry(QRinputItem $entry)
|
|
{
|
|
$this->items[] = $entry;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function append($mode, $size, $data)
|
|
{
|
|
try {
|
|
$entry = new QRinputItem($mode, $size, $data);
|
|
$this->items[] = $entry;
|
|
return 0;
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
public function insertStructuredAppendHeader($size, $index, $parity)
|
|
{
|
|
if( $size > MAX_STRUCTURED_SYMBOLS ) {
|
|
throw new Exception('insertStructuredAppendHeader wrong size');
|
|
}
|
|
|
|
if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
|
|
throw new Exception('insertStructuredAppendHeader wrong index');
|
|
}
|
|
|
|
$buf = array($size, $index, $parity);
|
|
|
|
try {
|
|
$entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
|
|
array_unshift($this->items, $entry);
|
|
return 0;
|
|
} catch (Exception $e) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function calcParity()
|
|
{
|
|
$parity = 0;
|
|
|
|
foreach($this->items as $item) {
|
|
if($item->mode != QR_MODE_STRUCTURE) {
|
|
for($i=$item->size-1; $i>=0; $i--) {
|
|
$parity ^= $item->data[$i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $parity;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function checkModeNum($size, $data)
|
|
{
|
|
for($i=0; $i<$size; $i++) {
|
|
if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function estimateBitsModeNum($size)
|
|
{
|
|
$w = (int)$size / 3;
|
|
$bits = $w * 10;
|
|
|
|
switch($size - $w * 3) {
|
|
case 1:
|
|
$bits += 4;
|
|
break;
|
|
case 2:
|
|
$bits += 7;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return $bits;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static $anTable = array(
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1,
|
|
-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
|
|
25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
|
|
);
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function lookAnTable($c)
|
|
{
|
|
return (($c > 127)?-1:self::$anTable[$c]);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function checkModeAn($size, $data)
|
|
{
|
|
for($i=0; $i<$size; $i++) {
|
|
if (self::lookAnTable(ord($data[$i])) == -1) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function estimateBitsModeAn($size)
|
|
{
|
|
$w = (int)($size / 2);
|
|
$bits = $w * 11;
|
|
|
|
if($size & 1) {
|
|
$bits += 6;
|
|
}
|
|
|
|
return $bits;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function estimateBitsMode8($size)
|
|
{
|
|
return $size * 8;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function estimateBitsModeKanji($size)
|
|
{
|
|
return (int)(($size / 2) * 13);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function checkModeKanji($size, $data)
|
|
{
|
|
if($size & 1)
|
|
return false;
|
|
|
|
for($i=0; $i<$size; $i+=2) {
|
|
$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
|
|
if( $val < 0x8140
|
|
|| ($val > 0x9ffc && $val < 0xe040)
|
|
|| $val > 0xebbf) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* Validation
|
|
**********************************************************************/
|
|
|
|
public static function check($mode, $size, $data)
|
|
{
|
|
if($size <= 0)
|
|
return false;
|
|
|
|
switch($mode) {
|
|
case QR_MODE_NUM: return self::checkModeNum($size, $data); break;
|
|
case QR_MODE_AN: return self::checkModeAn($size, $data); break;
|
|
case QR_MODE_KANJI: return self::checkModeKanji($size, $data); break;
|
|
case QR_MODE_8: return true; break;
|
|
case QR_MODE_STRUCTURE: return true; break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
public function estimateBitStreamSize($version)
|
|
{
|
|
$bits = 0;
|
|
|
|
foreach($this->items as $item) {
|
|
$bits += $item->estimateBitStreamSizeOfEntry($version);
|
|
}
|
|
|
|
return $bits;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function estimateVersion()
|
|
{
|
|
$version = 0;
|
|
$prev = 0;
|
|
do {
|
|
$prev = $version;
|
|
$bits = $this->estimateBitStreamSize($prev);
|
|
$version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|
if ($version < 0) {
|
|
return -1;
|
|
}
|
|
} while ($version > $prev);
|
|
|
|
return $version;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public static function lengthOfCode($mode, $version, $bits)
|
|
{
|
|
$payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
|
|
switch($mode) {
|
|
case QR_MODE_NUM:
|
|
$chunks = (int)($payload / 10);
|
|
$remain = $payload - $chunks * 10;
|
|
$size = $chunks * 3;
|
|
if($remain >= 7) {
|
|
$size += 2;
|
|
} else if($remain >= 4) {
|
|
$size += 1;
|
|
}
|
|
break;
|
|
case QR_MODE_AN:
|
|
$chunks = (int)($payload / 11);
|
|
$remain = $payload - $chunks * 11;
|
|
$size = $chunks * 2;
|
|
if($remain >= 6)
|
|
$size++;
|
|
break;
|
|
case QR_MODE_8:
|
|
$size = (int)($payload / 8);
|
|
break;
|
|
case QR_MODE_KANJI:
|
|
$size = (int)(($payload / 13) * 2);
|
|
break;
|
|
case QR_MODE_STRUCTURE:
|
|
$size = (int)($payload / 8);
|
|
break;
|
|
default:
|
|
$size = 0;
|
|
break;
|
|
}
|
|
|
|
$maxsize = QRspec::maximumWords($mode, $version);
|
|
if($size < 0) $size = 0;
|
|
if($size > $maxsize) $size = $maxsize;
|
|
|
|
return $size;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function createBitStream()
|
|
{
|
|
$total = 0;
|
|
|
|
foreach($this->items as $item) {
|
|
$bits = $item->encodeBitStream($this->version);
|
|
|
|
if($bits < 0)
|
|
return -1;
|
|
|
|
$total += $bits;
|
|
}
|
|
|
|
return $total;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function convertData()
|
|
{
|
|
$ver = $this->estimateVersion();
|
|
if($ver > $this->getVersion()) {
|
|
$this->setVersion($ver);
|
|
}
|
|
|
|
for(;;) {
|
|
$bits = $this->createBitStream();
|
|
|
|
if($bits < 0)
|
|
return -1;
|
|
|
|
$ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|
if($ver < 0) {
|
|
throw new Exception('WRONG VERSION');
|
|
return -1;
|
|
} else if($ver > $this->getVersion()) {
|
|
$this->setVersion($ver);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function appendPaddingBit(&$bstream)
|
|
{
|
|
$bits = $bstream->size();
|
|
$maxwords = QRspec::getDataLength($this->version, $this->level);
|
|
$maxbits = $maxwords * 8;
|
|
|
|
if ($maxbits == $bits) {
|
|
return 0;
|
|
}
|
|
|
|
if ($maxbits - $bits < 5) {
|
|
return $bstream->appendNum($maxbits - $bits, 0);
|
|
}
|
|
|
|
$bits += 4;
|
|
$words = (int)(($bits + 7) / 8);
|
|
|
|
$padding = new QRbitstream();
|
|
$ret = $padding->appendNum($words * 8 - $bits + 4, 0);
|
|
|
|
if($ret < 0)
|
|
return $ret;
|
|
|
|
$padlen = $maxwords - $words;
|
|
|
|
if($padlen > 0) {
|
|
|
|
$padbuf = array();
|
|
for($i=0; $i<$padlen; $i++) {
|
|
$padbuf[$i] = ($i&1)?0x11:0xec;
|
|
}
|
|
|
|
$ret = $padding->appendBytes($padlen, $padbuf);
|
|
|
|
if($ret < 0)
|
|
return $ret;
|
|
|
|
}
|
|
|
|
$ret = $bstream->append($padding);
|
|
|
|
return $ret;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function mergeBitStream()
|
|
{
|
|
if($this->convertData() < 0) {
|
|
return null;
|
|
}
|
|
|
|
$bstream = new QRbitstream();
|
|
|
|
foreach($this->items as $item) {
|
|
$ret = $bstream->append($item->bstream);
|
|
if($ret < 0) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return $bstream;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function getBitStream()
|
|
{
|
|
|
|
$bstream = $this->mergeBitStream();
|
|
|
|
if($bstream == null) {
|
|
return null;
|
|
}
|
|
|
|
$ret = $this->appendPaddingBit($bstream);
|
|
if($ret < 0) {
|
|
return null;
|
|
}
|
|
|
|
return $bstream;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
public function getByteStream()
|
|
{
|
|
$bstream = $this->getBitStream();
|
|
if($bstream == null) {
|
|
return null;
|
|
}
|
|
|
|
return $bstream->toByte();
|
|
}
|
|
}
|
|
|
|
|
|
|