8a2a605f45
Possibilité de générer un code QR depuis la barre de recherche, en ajoutant le générateur comme moteur de recherche.
726 lines
No EOL
24 KiB
PHP
Executable file
726 lines
No EOL
24 KiB
PHP
Executable file
<?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));
|
|
}
|
|
|
|
$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');
|
|
}
|
|
|
|
$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');
|
|
} 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();
|
|
}
|
|
}
|
|
|
|
|
|
|