<?php
/*
[UCenter Home] (C) 2007-2008 Comsenz Inc.
$Id: do_seccode.php 8531 2008-08-20 07:27:23Z liguode $
*/
if(!defined('IN_UCHOME')) {
exit('Access Denied');
}
//ÅäÖÃ
$seccodedata = array (
'width' => 100,
'height' => 40,
'adulterate' => '1',//Ëæ»ú±³¾°Í¼ÐÎ
'angle' => '0',//Ëæ»úÇãб¶È
'shadow' => '1',//ÒõÓ°
);
//ÑéÖ¤Âë
$seccode = mkseccode();
//É趨cookie
ssetcookie('seccode', authcode($seccode, 'ENCODE'));
if(function_exists('imagecreate') && function_exists('imagecolorset') && function_exists('imagecopyresized') &&
function_exists('imagecolorallocate') && function_exists('imagechar') && function_exists('imagecolorsforindex') &&
function_exists('imageline') && function_exists('imagecreatefromstring') && (function_exists('imagegif') || function_exists('imagepng') || function_exists('imagejpeg'))) {
$bgcontent = seccode_background();
$im = imagecreatefromstring($bgcontent);
if($seccodedata['adulterate']) {
seccode_adulterate();
}
seccode_giffont();
if(function_exists('imagepng')) {
header('Content-type: image/png');
imagepng($im);
} else {
header('Content-type: image/jpeg');
imagejpeg($im, '', 100);
}
imagedestroy($im);
} else {
$numbers = array
(
'B' => array('00','fc','66','66','66','7c','66','66','fc','00'),
'C' => array('00','38','64','c0','c0','c0','c4','64','3c','00'),
'E' => array('00','fe','62','62','68','78','6a','62','fe','00'),
'F' => array('00','f8','60','60','68','78','6a','62','fe','00'),
'G' => array('00','78','cc','cc','de','c0','c4','c4','7c','00'),
'H' => array('00','e7','66','66','66','7e','66','66','e7','00'),
'J' => array('00','f8','cc','cc','cc','0c','0c','0c','7f','00'),
'K' => array('00','f3','66','66','7c','78','6c','66','f7','00'),
'M' => array('00','f7','63','6b','6b','77','77','77','e3','00'),
'P' => array('00','f8','60','60','7c','66','66','66','fc','00'),
'Q' => array('00','78','cc','cc','cc','cc','cc','cc','78','00'),
'R' => array('00','f3','66','6c','7c','66','66','66','fc','00'),
'T' => array('00','78','30','30','30','30','b4','b4','fc','00'),
'V' => array('00','1c','1c','36','36','36','63','63','f7','00'),
'W' => array('00','36','36','36','77','7f','6b','63','f7','00'),
'X' => array('00','f7','66','3c','18','18','3c','66','ef','00'),
'Y' => array('00','7e','18','18','18','3c','24','66','ef','00'),
'2' => array('fc','c0','60','30','18','0c','cc','cc','78','00'),
'3' => array('78','8c','0c','0c','38','0c','0c','8c','78','00'),
'4' => array('00','3e','0c','fe','4c','6c','2c','3c','1c','1c'),
'6' => array('78','cc','cc','cc','ec','d8','c0','60','3c','00'),
'7' => array('30','30','38','18','18','18','1c','8c','fc','00'),
'8' => array('78','cc','cc','cc','78','cc','cc','cc','78','00'),
'9' => array('f0','18','0c','6c','dc','cc','cc','cc','78','00')
);
foreach($numbers as $i => $number) {
for($j = 0; $j < 6; $j++) {
$a1 = substr('012', mt_rand(0, 2), 1).substr('012345', mt_rand(0, 5), 1);
$a2 = substr('012345', mt_rand(0, 5), 1).substr('0123', mt_rand(0, 3), 1);
mt_rand(0, 1) == 1 ? array_push($numbers[$i], $a1) : array_unshift($numbers[$i], $a1);
mt_rand(0, 1) == 0 ? array_push($numbers[$i], $a1) : array_unshift($numbers[$i], $a2);
}
}
$bitmap = array();
for($i = 0; $i < 20; $i++) {
for($j = 0; $j < 4; $j++) {
$n = substr($seccode, $j, 1);
$bytes = $numbers[$n][$i];
$a = mt_rand(0, 14);
array_push($bitmap, $bytes);
}
}
for($i = 0; $i < 8; $i++) {
$a = substr('012345', mt_rand(0, 2), 1) . substr('012345', mt_rand(0, 5), 1);
array_unshift($bitmap, $a);
array_push($bitmap, $a);
}
$image = pack('H*', '424d9e000000000000003e000000280000002000000018000000010001000000'.
'0000600000000000000000000000000000000000000000000000FFFFFF00'.implode('', $bitmap));
header('Content-Type: image/bmp');
echo $image;
}
//Éú³ÉËæ»ú
function mkseccode() {
$seccode = random(6, 1);
$s = sprintf('%04s', base_convert($seccode, 10, 24));
$seccode = '';
$seccodeunits = 'BCEFGHJKMPQRTVWXY2346789';
for($i = 0; $i < 4; $i++) {
$unit = ord($s{$i});
$seccode .= ($unit >= 0x30 && $unit <= 0x39) ? $seccodeunits[$unit - 0x30] : $seccodeunits[$unit - 0x57];
}
return $seccode;
}
//±³¾°
function seccode_background() {
global $seccodedata, $c;
$im = imagecreatetruecolor($seccodedata['width'], $seccodedata['height']);
$backgroundcolor = imagecolorallocate($im, 255, 255, 255);
for($i = 0;$i < 3;$i++) {
$start[$i] = mt_rand(200, 255);
$end[$i] = mt_rand(100, 245);
$step[$i] = ($end[$i] - $start[$i]) / $seccodedata['width'];
$c[$i] = $start[$i];
}
//$color = imagecolorallocate($im, 235, 235, 235);
for($i = 0;$i < $seccodedata['width'];$i++) {
$color = imagecolorallocate($im, $c[0], $c[1], $c[2]);
imageline($im, $i, 0, $i-$angle, $seccodedata['height'], $color);
$c[0] += $step[0];
$c[1] += $step[1];
$c[2] += $step[2];
}
$c[0] -= 20;
$c[1] -= 20;
$c[2] -= 20;
obclean();
if(function_exists('imagepng')) {
imagepng($im);
} else {
imagejpeg($im, '', 100);
}
imagedestroy($im);
$bgcontent = ob_get_contents();
obclean();
return $bgcontent;
}
function seccode_adulterate() {
global $seccodedata, $im, $c;
$linenums = $seccodedata['height'] / 10;
for($i=0; $i <= $linenums; $i++) {
$color = imagecolorallocate($im, $c[0], $c[1], $c[2]);
$x = mt_rand(0, $seccodedata['width']);
$y = mt_rand(0, $seccodedata['height']);
if(mt_rand(0, 1)) {
imagearc($im, $x, $y, mt_rand(0, $seccodedata['width']), mt_rand(0, $seccodedata['height']), mt_rand(0, 360), mt_rand(0, 360), $color);
} else {
imageline($im, $x, $y, $linex + mt_rand(0, 20), $liney + mt_rand(0, mt_rand($seccodedata['height'], $seccodedata['width'])), $color);
}
}
}
function seccode_giffont() {
global $seccode, $seccodedata, $im, $c;
$seccodedir = array();
if(function_exists('imagecreatefromgif')) {
$seccoderoot = 'image/seccode/';
$dirs = opendir($seccoderoot);
while($dir = readdir($dirs)) {
if($dir != '.' && $dir != '..' && file_exists($seccoderoot.$dir.'/9.gif')) {
$seccodedir[] = $dir;
}
}
}
$widthtotal = 0;
for($i = 0; $i <= 3; $i++) {
$imcodefile = $seccodedir ? $seccoderoot.$seccodedir[array_rand($seccodedir)].'/'.strtolower($seccode[$i]).'.gif' : '';
if(!empty($imcodefile) && file_exists($imcodefile)) {
$font[$i]['file'] = $imcodefile;
$font[$i]['data'] = getimagesize($imcodefile);
$font[$i]['width'] = $font[$i]['data'][0] + mt_rand(0, 6) - 4;
$font[$i]['height'] = $font[$i]['data'][1] + mt_rand(0, 6) - 4;
$font[$i]['width'] += mt_rand(0, $seccodedata['width'] / 5 - $font[$i]['width']);
$widthtotal += $font[$i]['width'];
} else {
$font[$i]['file'] = '';
$font[$i]['width'] = 8 + mt_rand(0, $seccodedata['width'] / 5 - 5);
$widthtotal += $font[$i]['width'];
}
}
$x = mt_rand(1, $seccodedata['width'] - $widthtotal);
for($i = 0; $i <= 3; $i++) {
if($font[$i]['file']) {
$imcode = imagecreatefromgif($font[$i]['file']);
$y = mt_rand(0, $seccodedata['height'] - $font[$i]['height']);
if($seccodedata['shadow']) {
$imcodeshadow = $imcode;
imagecolorset($imcodeshadow, 0 , 255 - $c[0], 255 - $c[1], 255 - $c[2]);
imagecopyresized($im, $imcodeshadow, $x + 1, $y + 1, 0, 0, $font[$i]['width'], $font[$i]['height'], $font[$i]['data'][0], $font[$i]['data'][1]);
}
imagecolorset($imcode, 0 , $c[0], $c[1], $c[2]);
imagecopyresized($im, $imcode, $x, $y, 0, 0, $font[$i]['width'], $font[$i]['height'], $font[$i]['data'][0], $font[$i]['data'][1]);
} else {
$y = mt_rand(0, $seccodedata['height'] - 20);
if($seccodedata['shadow']) {
$text_shadowcolor = imagecolorallocate($im, 255 - $c[0], 255 - $c[1], 255 - $c[2]);
imagechar($im, 5, $x + 1, $y + 1, $seccode[$i], $text_shadowcolor);
}
$text_color = imagecolorallocate($im, $c[0], $c[1], $c[2]);
imagechar($im, 5, $x, $y, $seccode[$i], $text_color);
}
$x += $font[$i]['width'];
}
}
?>