PHP Classes

File: contrib/MultiotpQrcode.php

Recommend this page to a friend!
  Classes of André Liechti   multiOTP PHP class   contrib/MultiotpQrcode.php   Download  
File: contrib/MultiotpQrcode.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: multiOTP PHP class
Authenticate and manage OTP strong user tokens
Author: By
Last change: Update of contrib/MultiotpQrcode.php
Date: 9 months ago
Size: 26,174 bytes
 

Contents

Class file image Download
<?php ////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////// // // // Custom function providing qrcode generation, based on the library from // // Y. Swetake (http://www.swetake.com/qr/index-e.html) // // Last update of the original library: 2013-05-18 // // Last update of the modified library: 2014-10-24 // // // // A better library from Dominik Dzienia exists // // (http://phpqrcode.sourceforge.net/), but it is not compatible with PHP 4.x // // and can have incompatibilities if used with TCPDF // // // // Enhancements made by SysCo/al // // If $file_name = "binary", send binary content without header // // Some additional parameters // // Fix when calling image functions for a NULL file // // // ////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////// function MultiotpQrcode($data = '', $file_name = '', $image_type = "P", $ecc_level = "Q", $module_size = 4, $version = 0, $structure_m = 0, $structure_n = 0, $parity = 0, $original_data = '', $path = 'qrcode/data', $image_path = 'qrcode/image') { /* # # QRcode image PHP scripts version 0.50j (C)2000-2013,Y.Swetake # # # # This program outputs a png image of "QRcode model 2". # You cannot use a several functions of QRcode in this version. # See README.txt . # # This version supports QRcode model2 version 1-40. # # # This program requires PHP4.1 and gd 1.6 or higher. # # You must set $path & $image_path the path to QRcode data file. # # # [usage] # qr_img.php?d=[data]&e=[(L,M,Q,H)]&s=[int]&v=[(1-40)] # (&m=[(1-16)]&n=[(2-16)](&p=[(0-255)],&o=[data])) # # d= data URL encoded data. # e= ECC level L or M or Q or H (default M) # Low (L): Up to 7% of errors can be corrected. // Info added for multiOTP # Medium-Low (M): Up to 15% of errors can be corrected. // Info added for multiOTP # Medium-High (Q): Up to 25% of errors can be corrected. // Info added for multiOTP # High (H): Up to 30% of errors can be corrected. // Info added for multiOTP # s= module size (default PNG:4 JPEG:8) # v= version 1-40 or Auto select if you do not set. # t= image type J:jpeg image , other: PNG image # # structured append m of n (experimental) # n= structure append n (2-16) # m= structure append m (1-16) # p= parity # o= original data (URL encoded data) for calculating parity # # # # THIS SOFTWARE IS PROVIDED BY Y.Swetake ``AS IS'' AND ANY EXPRESS OR # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. # IN NO EVENT SHALL Y.Swetake OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # */ /* ------ setting area ------ */ $output_name = $file_name; $qrcode_image_size = 0; // Initialized for multiOTP $qrcode_result = NULL; // Added for multiOTP $version_ul=40; /* upper limit for version */ /* ------ setting area end ------ */ // Adapted for multiOTP (method parameters instead of URL parameters) $qrcode_data_string=$data; $qrcode_error_correct=$ecc_level; $qrcode_module_size=$module_size; $qrcode_version=$version; $qrcode_image_type=$image_type; $qrcode_structureappend_n=$structure_n; $qrcode_structureappend_m=$structure_m; $qrcode_structureappend_parity=$parity; $qrcode_structureappend_originaldata=$original_data; if (strtolower($qrcode_image_type)=="j") // Adapted for multiOTP { $qrcode_image_type="jpeg"; } else { $qrcode_image_type="png"; } if ($qrcode_module_size>0) { } else { if ($qrcode_image_type=="jpeg"){ $qrcode_module_size=8; } else { $qrcode_module_size=4; } } $qrcode_data_string=($qrcode_data_string); // SysCo/al no rawurldecode here, because we are calling the function directly $data_length=strlen($qrcode_data_string); if ($data_length<=0) { trigger_error("QRcode : Data do not exist.",E_USER_ERROR); exit; } $data_counter=0; if ($qrcode_structureappend_n>1 && $qrcode_structureappend_n<=16 && $qrcode_structureappend_m>0 && $qrcode_structureqppend_m<=16){ $data_value[0]=3; $data_bits[0]=4; $data_value[1]=$qrcode_structureappend_m-1; $data_bits[1]=4; $data_value[2]=$qrcode_structureappend_n-1; $data_bits[2]=4; $originaldata_length=strlen($qrcode_structureappend_originaldata); if ($originaldata_length>1){ $qrcode_structureappend_parity=0; $i=0; while ($i<$originaldata_length){ $qrcode_structureappend_parity=($qrcode_structureappend_parity ^ ord(substr($qrcode_structureappend_originaldata,$i,1))); $i++; } } $data_value[3]=$qrcode_structureappend_parity; $data_bits[3]=8; $data_counter=4; } $data_bits[$data_counter]=4; /* --- determine encode mode */ if (preg_match("/[^0-9]/",$qrcode_data_string)!=0){ if (preg_match("/[^0-9A-Z \$\*\%\+\.\/\:\-]/",$qrcode_data_string)!=0) { /* --- 8bit byte mode */ $codeword_num_plus=array(0,0,0,0,0,0,0,0,0,0, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8); $data_value[$data_counter]=4; $data_counter++; $data_value[$data_counter]=$data_length; $data_bits[$data_counter]=8; /* #version 1-9 */ $codeword_num_counter_value=$data_counter; $data_counter++; $i=0; while ($i<$data_length){ $data_value[$data_counter]=ord(substr($qrcode_data_string,$i,1)); $data_bits[$data_counter]=8; $data_counter++; $i++; } } else { /* ---- alphanumeric mode */ $codeword_num_plus=array(0,0,0,0,0,0,0,0,0,0, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 4,4,4,4,4,4,4,4,4,4,4,4,4,4); $data_value[$data_counter]=2; $data_counter++; $data_value[$data_counter]=$data_length; $data_bits[$data_counter]=9; /* #version 1-9 */ $codeword_num_counter_value=$data_counter; $alphanumeric_character_hash=array("0"=>0,"1"=>1,"2"=>2,"3"=>3,"4"=>4, "5"=>5,"6"=>6,"7"=>7,"8"=>8,"9"=>9,"A"=>10,"B"=>11,"C"=>12,"D"=>13,"E"=>14, "F"=>15,"G"=>16,"H"=>17,"I"=>18,"J"=>19,"K"=>20,"L"=>21,"M"=>22,"N"=>23, "O"=>24,"P"=>25,"Q"=>26,"R"=>27,"S"=>28,"T"=>29,"U"=>30,"V"=>31, "W"=>32,"X"=>33,"Y"=>34,"Z"=>35," "=>36,"$"=>37,"%"=>38,"*"=>39, "+"=>40,"-"=>41,"."=>42,"/"=>43,":"=>44); $i=0; $data_counter++; while ($i<$data_length){ if (($i %2)==0){ $data_value[$data_counter]=$alphanumeric_character_hash[substr($qrcode_data_string,$i,1)]; $data_bits[$data_counter]=6; } else { $data_value[$data_counter]=$data_value[$data_counter]*45+$alphanumeric_character_hash[substr($qrcode_data_string,$i,1)]; $data_bits[$data_counter]=11; $data_counter++; } $i++; } } } else { /* ---- numeric mode */ $codeword_num_plus=array(0,0,0,0,0,0,0,0,0,0, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 4,4,4,4,4,4,4,4,4,4,4,4,4,4); $data_value[$data_counter]=1; $data_counter++; $data_value[$data_counter]=$data_length; $data_bits[$data_counter]=10; /* #version 1-9 */ $codeword_num_counter_value=$data_counter; $i=0; $data_counter++; while ($i<$data_length){ if (($i % 3)==0){ $data_value[$data_counter]=substr($qrcode_data_string,$i,1); $data_bits[$data_counter]=4; } else { $data_value[$data_counter]=$data_value[$data_counter]*10+substr($qrcode_data_string,$i,1); if (($i % 3)==1){ $data_bits[$data_counter]=7; } else { $data_bits[$data_counter]=10; $data_counter++; } } $i++; } } if (@$data_bits[$data_counter]>0) { $data_counter++; } $i=0; $total_data_bits=0; while($i<$data_counter){ $total_data_bits+=$data_bits[$i]; $i++; } $ecc_character_hash=array("L"=>"1", "l"=>"1", "M"=>"0", "m"=>"0", "Q"=>"3", "q"=>"3", "H"=>"2", "h"=>"2"); $ec=@$ecc_character_hash[$qrcode_error_correct]; if (!$ec){$ec=0;} $max_data_bits_array=array( 0,128,224,352,512,688,864,992,1232,1456,1728, 2032,2320,2672,2920,3320,3624,4056,4504,5016,5352, 5712,6256,6880,7312,8000,8496,9024,9544,10136,10984, 11640,12328,13048,13800,14496,15312,15936,16816,17728,18672, 152,272,440,640,864,1088,1248,1552,1856,2192, 2592,2960,3424,3688,4184,4712,5176,5768,6360,6888, 7456,8048,8752,9392,10208,10960,11744,12248,13048,13880, 14744,15640,16568,17528,18448,19472,20528,21616,22496,23648, 72,128,208,288,368,480,528,688,800,976, 1120,1264,1440,1576,1784,2024,2264,2504,2728,3080, 3248,3536,3712,4112,4304,4768,5024,5288,5608,5960, 6344,6760,7208,7688,7888,8432,8768,9136,9776,10208, 104,176,272,384,496,608,704,880,1056,1232, 1440,1648,1952,2088,2360,2600,2936,3176,3560,3880, 4096,4544,4912,5312,5744,6032,6464,6968,7288,7880, 8264,8920,9368,9848,10288,10832,11408,12016,12656,13328 ); if (!is_numeric($qrcode_version)){ $qrcode_version=0; } if (!$qrcode_version){ /* #--- auto version select */ $i=1+40*$ec; $j=$i+39; $qrcode_version=1; while ($i<=$j){ if (($max_data_bits_array[$i])>=$total_data_bits+$codeword_num_plus[$qrcode_version] ){ $max_data_bits=$max_data_bits_array[$i]; break; } $i++; $qrcode_version++; } } else { $max_data_bits=$max_data_bits_array[$qrcode_version+40*$ec]; } if ($qrcode_version>$version_ul){ trigger_error("QRcode : too large version.",E_USER_ERROR); } $total_data_bits+=$codeword_num_plus[$qrcode_version]; $data_bits[$codeword_num_counter_value]+=$codeword_num_plus[$qrcode_version]; $max_codewords_array=array(0,26,44,70,100,134,172,196,242, 292,346,404,466,532,581,655,733,815,901,991,1085,1156, 1258,1364,1474,1588,1706,1828,1921,2051,2185,2323,2465, 2611,2761,2876,3034,3196,3362,3532,3706); $max_codewords=$max_codewords_array[$qrcode_version]; $max_modules_1side=17+($qrcode_version <<2); $matrix_remain_bit=array(0,0,7,7,7,7,7,0,0,0,0,0,0,0,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,3,3,3,3,3,3,3,0,0,0,0,0,0); /* ---- read version ECC data file */ $byte_num=$matrix_remain_bit[$qrcode_version]+($max_codewords << 3); $filename=$path."/qrv".$qrcode_version."_".$ec.".dat"; $fp1 = fopen ($filename, "rb"); $matx=fread($fp1,$byte_num); $maty=fread($fp1,$byte_num); $masks=fread($fp1,$byte_num); $fi_x=fread($fp1,15); $fi_y=fread($fp1,15); $rs_ecc_codewords=ord(fread($fp1,1)); $rso=fread($fp1,128); fclose($fp1); $matrix_x_array=unpack("C*",$matx); $matrix_y_array=unpack("C*",$maty); $mask_array=unpack("C*",$masks); $rs_block_order=unpack("C*",$rso); $format_information_x2=unpack("C*",$fi_x); $format_information_y2=unpack("C*",$fi_y); $format_information_x1=array(0,1,2,3,4,5,7,8,8,8,8,8,8,8,8); $format_information_y1=array(8,8,8,8,8,8,8,8,7,5,4,3,2,1,0); $max_data_codewords=($max_data_bits >>3); $filename = $path."/rsc".$rs_ecc_codewords.".dat"; $fp0 = fopen ($filename, "rb"); $i=0; while ($i<256) { $rs_cal_table_array[$i]=fread ($fp0,$rs_ecc_codewords); $i++; } fclose ($fp0); /* --- set terminator */ if ($total_data_bits<=$max_data_bits-4){ $data_value[$data_counter]=0; $data_bits[$data_counter]=4; } else { if ($total_data_bits<$max_data_bits){ $data_value[$data_counter]=0; $data_bits[$data_counter]=$max_data_bits-$total_data_bits; } else { if ($total_data_bits>$max_data_bits){ trigger_error("QRcode : Overflow error",E_USER_ERROR); exit; } } } /* ----divide data by 8bit */ $i=0; $codewords_counter=0; $codewords[0]=0; $remaining_bits=8; while ($i<=$data_counter) { $buffer=@$data_value[$i]; $buffer_bits=@$data_bits[$i]; $flag=1; while ($flag) { if ($remaining_bits>$buffer_bits){ $codewords[$codewords_counter]=((@$codewords[$codewords_counter]<<$buffer_bits) | $buffer); $remaining_bits-=$buffer_bits; $flag=0; } else { $buffer_bits-=$remaining_bits; $codewords[$codewords_counter]=(($codewords[$codewords_counter] << $remaining_bits) | ($buffer >> $buffer_bits)); if ($buffer_bits==0) { $flag=0; } else { $buffer= ($buffer & ((1 << $buffer_bits)-1) ); $flag=1; } $codewords_counter++; if ($codewords_counter<$max_data_codewords-1){ $codewords[$codewords_counter]=0; } $remaining_bits=8; } } $i++; } if ($remaining_bits!=8) { $codewords[$codewords_counter]=$codewords[$codewords_counter] << $remaining_bits; } else { $codewords_counter--; } /* ---- set padding character */ if ($codewords_counter<$max_data_codewords-1){ $flag=1; while ($codewords_counter<$max_data_codewords-1){ $codewords_counter++; if ($flag==1) { $codewords[$codewords_counter]=236; } else { $codewords[$codewords_counter]=17; } $flag=$flag*(-1); } } /* ---- RS-ECC prepare */ $i=0; $j=0; $rs_block_number=0; $rs_temp[0]=""; while($i<$max_data_codewords){ $rs_temp[$rs_block_number].=chr($codewords[$i]); $j++; if ($j>=$rs_block_order[$rs_block_number+1]-$rs_ecc_codewords){ $j=0; $rs_block_number++; $rs_temp[$rs_block_number]=""; } $i++; } /* # # RS-ECC main # */ $rs_block_number=0; $rs_block_order_num=count($rs_block_order); while ($rs_block_number<$rs_block_order_num){ $rs_codewords=$rs_block_order[$rs_block_number+1]; $rs_data_codewords=$rs_codewords-$rs_ecc_codewords; $rstemp=$rs_temp[$rs_block_number].str_repeat(chr(0),$rs_ecc_codewords); $padding_data=str_repeat(chr(0),$rs_data_codewords); $j=$rs_data_codewords; while($j>0){ $first=ord(substr($rstemp,0,1)); if ($first){ $left_chr=substr($rstemp,1); $cal=$rs_cal_table_array[$first].$padding_data; $rstemp=$left_chr ^ $cal; } else { $rstemp=substr($rstemp,1); } $j--; } $codewords=array_merge($codewords,unpack("C*",$rstemp)); $rs_block_number++; } /* ---- flash matrix */ $i=0; while ($i<$max_modules_1side){ $j=0; while ($j<$max_modules_1side){ $matrix_content[$j][$i]=0; $j++; } $i++; } /* --- attach data */ $i=0; while ($i<$max_codewords){ $codeword_i=$codewords[$i]; $j=8; while ($j>=1){ $codeword_bits_number=($i << 3) + $j; $matrix_content[ $matrix_x_array[$codeword_bits_number] ][ $matrix_y_array[$codeword_bits_number] ]=((255*($codeword_i & 1)) ^ $mask_array[$codeword_bits_number] ); $codeword_i= $codeword_i >> 1; $j--; } $i++; } $matrix_remain=$matrix_remain_bit[$qrcode_version]; while ($matrix_remain){ $remain_bit_temp = $matrix_remain + ( $max_codewords <<3); $matrix_content[ $matrix_x_array[$remain_bit_temp] ][ $matrix_y_array[$remain_bit_temp] ] = ( 0 ^ $mask_array[$remain_bit_temp] ); $matrix_remain--; } #--- mask select $min_demerit_score=0; $hor_master=""; $ver_master=""; $k=0; while($k<$max_modules_1side){ $l=0; while($l<$max_modules_1side){ $hor_master=$hor_master.chr($matrix_content[$l][$k]); $ver_master=$ver_master.chr($matrix_content[$k][$l]); $l++; } $k++; } $i=0; $all_matrix=$max_modules_1side * $max_modules_1side; while ($i<8){ $demerit_n1=0; $ptn_temp=array(); $bit= 1<< $i; $bit_r=(~$bit)&255; $bit_mask=str_repeat(chr($bit),$all_matrix); $hor = $hor_master & $bit_mask; $ver = $ver_master & $bit_mask; $ver_shift1=$ver.str_repeat(chr(170),$max_modules_1side); $ver_shift2=str_repeat(chr(170),$max_modules_1side).$ver; $ver_shift1_0=$ver.str_repeat(chr(0),$max_modules_1side); $ver_shift2_0=str_repeat(chr(0),$max_modules_1side).$ver; $ver_or=chunk_split(~($ver_shift1 | $ver_shift2),$max_modules_1side,chr(170)); $ver_and=chunk_split(~($ver_shift1_0 & $ver_shift2_0),$max_modules_1side,chr(170)); $hor=chunk_split(~$hor,$max_modules_1side,chr(170)); $ver=chunk_split(~$ver,$max_modules_1side,chr(170)); $hor=$hor.chr(170).$ver; $n1_search="/".str_repeat(chr(255),5)."+|".str_repeat(chr($bit_r),5)."+/"; $n3_search=chr($bit_r).chr(255).chr($bit_r).chr($bit_r).chr($bit_r).chr(255).chr($bit_r); $demerit_n3=substr_count($hor,$n3_search)*40; $demerit_n4=floor(abs(( (100* (substr_count($ver,chr($bit_r))/($byte_num)) )-50)/5))*10; $n2_search1="/".chr($bit_r).chr($bit_r)."+/"; $n2_search2="/".chr(255).chr(255)."+/"; $demerit_n2=0; preg_match_all($n2_search1,$ver_and,$ptn_temp); foreach($ptn_temp[0] as $str_temp){ $demerit_n2+=(strlen($str_temp)-1); } $ptn_temp=array(); preg_match_all($n2_search2,$ver_or,$ptn_temp); foreach($ptn_temp[0] as $str_temp){ $demerit_n2+=(strlen($str_temp)-1); } $demerit_n2*=3; $ptn_temp=array(); preg_match_all($n1_search,$hor,$ptn_temp); foreach($ptn_temp[0] as $str_temp){ $demerit_n1+=(strlen($str_temp)-2); } $demerit_score=$demerit_n1+$demerit_n2+$demerit_n3+$demerit_n4; if ($demerit_score<=$min_demerit_score || $i==0){ $mask_number=$i; $min_demerit_score=$demerit_score; } $i++; } $mask_content=1 << $mask_number; # --- format information $format_information_value=(($ec << 3) | $mask_number); $format_information_array=array("101010000010010","101000100100101", "101111001111100","101101101001011","100010111111001","100000011001110", "100111110010111","100101010100000","111011111000100","111001011110011", "111110110101010","111100010011101","110011000101111","110001100011000", "110110001000001","110100101110110","001011010001001","001001110111110", "001110011100111","001100111010000","000011101100010","000001001010101", "000110100001100","000100000111011","011010101011111","011000001101000", "011111100110001","011101000000110","010010010110100","010000110000011", "010111011011010","010101111101101"); $i=0; while ($i<15){ $content=substr($format_information_array[$format_information_value],$i,1); $matrix_content[$format_information_x1[$i]][$format_information_y1[$i]]=$content * 255; $matrix_content[$format_information_x2[$i+1]][$format_information_y2[$i+1]]=$content * 255; $i++; } $mib=$max_modules_1side+8; $qrcode_image_size=$mib*$qrcode_module_size; if ($qrcode_image_size>1480){ trigger_error("QRcode : Too large image size",E_USER_ERROR); } $output_image =ImageCreate($qrcode_image_size,$qrcode_image_size); $image_path=$image_path."/qrv".$qrcode_version.".png"; $base_image=ImageCreateFromPNG($image_path); $col[1]=ImageColorAllocate($base_image,0,0,0); $col[0]=ImageColorAllocate($base_image,255,255,255); $i=4; $mxe=4+$max_modules_1side; $ii=0; while ($i<$mxe){ $j=4; $jj=0; while ($j<$mxe){ if ($matrix_content[$ii][$jj] & $mask_content){ ImageSetPixel($base_image,$i,$j,$col[1]); } $j++; $jj++; } $i++; $ii++; } /* #--- output image # */ // Adapted for multiOTP in order to choose either display output or file output ImageCopyResized($output_image,$base_image,0,0,0,0,$qrcode_image_size,$qrcode_image_size,$mib,$mib); if ('' == trim($file_name)) { Header("Content-type: image/".$qrcode_image_type); $output_name = NULL; } if ('binary' == trim($file_name)) { $output_name = NULL; ob_start(); } if ($qrcode_image_type == "jpeg") { if (NULL == $output_name) { ImageJpeg($output_image); } else { ImageJpeg($output_image, $output_name); } } else { if (NULL == $output_name) { ImagePng($output_image); } else { ImagePng($output_image, $output_name); } } if ('binary' == trim($file_name)) { $qrcode_result = ob_get_clean(); } else { $qrcode_result = $qrcode_image_size; } imagedestroy($base_image); imagedestroy($output_image); return $qrcode_result; } ?>