From 3fd785654372d493c031d9b541ab33a881023a32 Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Fri, 26 Feb 2021 19:16:17 +0300 Subject: * switch to composer for qrcode and otp dependencies * move most OTP-related stuff into userhelper * remove old phpqrcode and otphp libraries --- lib/phpqrcode/qrmask.php | 328 ----------------------------------------------- 1 file changed, 328 deletions(-) delete mode 100644 lib/phpqrcode/qrmask.php (limited to 'lib/phpqrcode/qrmask.php') diff --git a/lib/phpqrcode/qrmask.php b/lib/phpqrcode/qrmask.php deleted file mode 100644 index 43d653ce3..000000000 --- a/lib/phpqrcode/qrmask.php +++ /dev/null @@ -1,328 +0,0 @@ - - * - * PHP QR Code is distributed under LGPL 3 - * Copyright (C) 2010 Dominik Dzienia - * - * 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('N1', 3); - define('N2', 3); - define('N3', 40); - define('N4', 10); - - class QRmask { - - public $runLength = array(); - - //---------------------------------------------------------------------- - public function __construct() - { - $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0); - } - - //---------------------------------------------------------------------- - public function writeFormatInformation($width, &$frame, $mask, $level) - { - $blacks = 0; - $format = QRspec::getFormatInfo($mask, $level); - - for($i=0; $i<8; $i++) { - if($format & 1) { - $blacks += 2; - $v = 0x85; - } else { - $v = 0x84; - } - - $frame[8][$width - 1 - $i] = chr($v); - if($i < 6) { - $frame[$i][8] = chr($v); - } else { - $frame[$i + 1][8] = chr($v); - } - $format = $format >> 1; - } - - for($i=0; $i<7; $i++) { - if($format & 1) { - $blacks += 2; - $v = 0x85; - } else { - $v = 0x84; - } - - $frame[$width - 7 + $i][8] = chr($v); - if($i == 0) { - $frame[8][7] = chr($v); - } else { - $frame[8][6 - $i] = chr($v); - } - - $format = $format >> 1; - } - - return $blacks; - } - - //---------------------------------------------------------------------- - public function mask0($x, $y) { return ($x+$y)&1; } - public function mask1($x, $y) { return ($y&1); } - public function mask2($x, $y) { return ($x%3); } - public function mask3($x, $y) { return ($x+$y)%3; } - public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; } - public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3; } - public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1; } - public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1; } - - //---------------------------------------------------------------------- - private function generateMaskNo($maskNo, $width, $frame) - { - $bitMask = array_fill(0, $width, array_fill(0, $width, 0)); - - for($y=0; $y<$width; $y++) { - for($x=0; $x<$width; $x++) { - if(ord($frame[$y][$x]) & 0x80) { - $bitMask[$y][$x] = 0; - } else { - $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y); - $bitMask[$y][$x] = ($maskFunc == 0)?1:0; - } - - } - } - - return $bitMask; - } - - //---------------------------------------------------------------------- - public static function serial($bitFrame) - { - $codeArr = array(); - - foreach ($bitFrame as $line) - $codeArr[] = join('', $line); - - return gzcompress(join("\n", $codeArr), 9); - } - - //---------------------------------------------------------------------- - public static function unserial($code) - { - $codeArr = array(); - - $codeLines = explode("\n", gzuncompress($code)); - foreach ($codeLines as $line) - $codeArr[] = str_split($line); - - return $codeArr; - } - - //---------------------------------------------------------------------- - public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) - { - $b = 0; - $bitMask = array(); - - $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat'; - - if (QR_CACHEABLE) { - if (file_exists($fileName)) { - $bitMask = self::unserial(file_get_contents($fileName)); - } else { - $bitMask = $this->generateMaskNo($maskNo, $width, $s); - if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo)) - mkdir(QR_CACHE_DIR.'mask_'.$maskNo); - file_put_contents($fileName, self::serial($bitMask)); - } - } else { - $bitMask = $this->generateMaskNo($maskNo, $width, $s); - } - - if ($maskGenOnly) - return; - - $d = $s; - - for($y=0; $y<$width; $y++) { - for($x=0; $x<$width; $x++) { - if($bitMask[$y][$x] == 1) { - $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]); - } - $b += (int)(ord($d[$y][$x]) & 1); - } - } - - return $b; - } - - //---------------------------------------------------------------------- - public function makeMask($width, $frame, $maskNo, $level) - { - $masked = array_fill(0, $width, str_repeat("\0", $width)); - $this->makeMaskNo($maskNo, $width, $frame, $masked); - $this->writeFormatInformation($width, $masked, $maskNo, $level); - - return $masked; - } - - //---------------------------------------------------------------------- - public function calcN1N3($length) - { - $demerit = 0; - - for($i=0; $i<$length; $i++) { - - if($this->runLength[$i] >= 5) { - $demerit += (N1 + ($this->runLength[$i] - 5)); - } - if($i & 1) { - if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) { - $fact = (int)($this->runLength[$i] / 3); - if(($this->runLength[$i-2] == $fact) && - ($this->runLength[$i-1] == $fact) && - ($this->runLength[$i+1] == $fact) && - ($this->runLength[$i+2] == $fact)) { - if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) { - $demerit += N3; - } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) { - $demerit += N3; - } - } - } - } - } - return $demerit; - } - - //---------------------------------------------------------------------- - public function evaluateSymbol($width, $frame) - { - $head = 0; - $demerit = 0; - - for($y=0; $y<$width; $y++) { - $head = 0; - $this->runLength[0] = 1; - - $frameY = $frame[$y]; - - if ($y>0) - $frameYM = $frame[$y-1]; - - for($x=0; $x<$width; $x++) { - if(($x > 0) && ($y > 0)) { - $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]); - $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]); - - if(($b22 | ($w22 ^ 1))&1) { - $demerit += N2; - } - } - if(($x == 0) && (ord($frameY[$x]) & 1)) { - $this->runLength[0] = -1; - $head = 1; - $this->runLength[$head] = 1; - } else if($x > 0) { - if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) { - $head++; - $this->runLength[$head] = 1; - } else { - $this->runLength[$head]++; - } - } - } - - $demerit += $this->calcN1N3($head+1); - } - - for($x=0; $x<$width; $x++) { - $head = 0; - $this->runLength[0] = 1; - - for($y=0; $y<$width; $y++) { - if($y == 0 && (ord($frame[$y][$x]) & 1)) { - $this->runLength[0] = -1; - $head = 1; - $this->runLength[$head] = 1; - } else if($y > 0) { - if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) { - $head++; - $this->runLength[$head] = 1; - } else { - $this->runLength[$head]++; - } - } - } - - $demerit += $this->calcN1N3($head+1); - } - - return $demerit; - } - - - //---------------------------------------------------------------------- - public function mask($width, $frame, $level) - { - $minDemerit = PHP_INT_MAX; - $bestMaskNum = 0; - $bestMask = array(); - - $checked_masks = array(0,1,2,3,4,5,6,7); - - if (QR_FIND_FROM_RANDOM !== false) { - - $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9); - for ($i = 0; $i < $howManuOut; $i++) { - $remPos = rand (0, count($checked_masks)-1); - unset($checked_masks[$remPos]); - $checked_masks = array_values($checked_masks); - } - - } - - $bestMask = $frame; - - foreach($checked_masks as $i) { - $mask = array_fill(0, $width, str_repeat("\0", $width)); - - $demerit = 0; - $blacks = 0; - $blacks = $this->makeMaskNo($i, $width, $frame, $mask); - $blacks += $this->writeFormatInformation($width, $mask, $i, $level); - $blacks = (int)(100 * $blacks / ($width * $width)); - $demerit = (int)((int)(abs($blacks - 50) / 5) * N4); - $demerit += $this->evaluateSymbol($width, $mask); - - if($demerit < $minDemerit) { - $minDemerit = $demerit; - $bestMask = $mask; - $bestMaskNum = $i; - } - } - - return $bestMask; - } - - //---------------------------------------------------------------------- - } -- cgit v1.2.3