www.gusucode.com > ShopEx481 & PHPWind 整合版码程序 > bbs/ck.php
<?php
if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) || !empty($_SERVER['HTTP_IF_NONE_MATCH']) || empty($_COOKIE) && !$_SERVER['HTTP_USER_AGENT']) {
NotModified();exit;
}
define('CK',1);
require_once('global.php');
if ($_GET['admin']) {
$db_ckpath = '/';
$db_ckdomain = '';
}
header('Pragma:no-cache');
header('Cache-control:no-cache');
class CkCode {
var $width;
var $height;
var $num;
var $style;
var $gdtype;
function CkCode() {
list($w,$h,$n) = explode("\t",$GLOBALS['db_gdsize']);
(!is_numeric($w) || $w < 50 || $w > 200) && $w = 150;
(!is_numeric($h) || $h < 20 || $h > 80) && $h = 60;
(!is_numeric($n) || $n < 1) && $n = 4;
$this->width = $w;
$this->height = $h;
$this->num = (int)$n;
$this->style = $GLOBALS['db_gdstyle'];
$this->gdtype = $GLOBALS['db_gdtype'];
$this->gdtype == 3 && $this->gdtype = mt_rand(0,2);
}
function background() {
$im = imagecreatetruecolor($this->width,$this->height);
$bgs = array();
if (($this->style & 8) && function_exists('imagecreatefromjpeg') && function_exists('imagecopymerge')) {
if ($fp = @opendir($GLOBALS['imgdir'].'/ck/bg/')) {
while ($flie = @readdir($fp)) {
if (preg_match('/\.jpg$/i',$flie)) {
$bgs[] = $GLOBALS['imgdir'].'/ck/bg/'.$flie;
}
}
@closedir($fp);
}
}
if ($bgs) {
$imbg = imagecreatefromjpeg($bgs[array_rand($bgs)]);
imagecopymerge($im,$imbg,0,0,mt_rand(0,200-$this->width),mt_rand(0,80-$this->height), $this->width,$this->height,100);
imagedestroy($imbg);
} else {
$c = array();
for ($i = 0; $i < 3; $i++) {
$c[$i] = mt_rand(200, 255);
$step[$i] = (mt_rand(100, 150) - $c[$i]) / $this->width;
}
for ($i = 0; $i < $this->width; $i++) {
imageline($im,$i,0,$i,$this->height,imagecolorallocate($im,$c[0],$c[1],$c[2]));
$c[0] += $step[0];
$c[1] += $step[1];
$c[2] += $step[2];
}
}
return $im;
}
function getColor(&$im) {
if ($this->style & 16) {
$color = imagecolorallocate($im,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
} else {
static $color = null;
if (!isset($color)) {
$c_index = imagecolorat($im, 1, 1);
$c = imagecolorsforindex($im, $c_index);
$color = imagecolorallocate($im,255-$c['red'],255-$c['green'],255-$c['blue']);
}
}
return $color;
}
function getCode($type=null,$set=true) {
empty($type) && $type = $this->gdtype;
$code = '';
switch ($type) {
case 2:
global $db_charset,$lang;
require_once GetLang('ck');
$step = strtoupper($db_charset) == 'UTF-8' ? 3 : 2;
$len = (strlen($lang['ck'])/$step) - 1;
for ($i = 0; $i < $this->num; $i++) {
$code .= substr($lang['ck'],mt_rand(0,$len)*$step,$step);
}
$set && $this->cookie($code);
if (strtoupper($db_charset) <> 'UTF-8') {
$code = $this->convert($code,'UTF-8',$db_charset);
}
$code = explode(',',wordwrap($code,3,',',1));
break;
case 1:
$list = 'BCEFGHJKMPQRTVWXY2346789';
$len = strlen($list) - 1;
for ($i = 0; $i < $this->num; $i++) {
$code .= $list[mt_rand(0,$len)];
}
$set && $this->cookie($code);
break;
default:
$code = num_rand($this->num);
$set && $this->cookie($code);
}
return $code;
}
function ttffont(&$im) {
global $db_gdtype;
$codefont = $GLOBALS['imgdir'].($this->gdtype == 2 ? '/fonts/ch/' : '/fonts/en/');
$dirs = opendir($codefont);
$ttf = array();
while ($file = readdir($dirs)) {
if ($file != '.' && $file != '..' && preg_match('/\.ttf$/i',$file)) {
$ttf[] = $file;
}
}
@closedir($dirs);
if (empty($ttf)) return;
$size = $this->height / ($this->gdtype == 2 ? 2.4 : 2);
$code = $this->getCode();
$width = $this->width / $this->num;
for ($i = 0; $i < $this->num; $i++) {
$dsize = ($this->style & 2) ? mt_rand($size*0.8,$size*1.2) : $size;
$angle = ($this->style & 4) ? mt_rand(-30, 30) : 0;
$color = $this->getColor($im);
$font = $codefont.$ttf[array_rand($ttf)];
$box = N_imagettfbbox($dsize,0,$font,$code[$i]);
$length = $width * $i;
$x = mt_rand($length,$length + $width - (max($box[2], $box[4]) - min($box[0], $box[6])));
$y = mt_rand(max($box[1],$box[3])-min($box[5],$box[7]),$this->height);
imagettftext($im,$dsize,$angle,$x,$y,$color,$font,$code[$i]);
}
}
function imgfont(&$im) {
$img = array();
if (function_exists('imagecreatefromgif')) {
$imgfont = $GLOBALS['imgdir'].'/ck/gif/';
$dirs = opendir($imgfont);
while ($file = readdir($dirs)) {
if ($file != '.' && $file != '..' && file_exists($imgfont.$file.'/2.gif')) {
$img[] = $file;
}
}
@closedir($dirs);
}
$code = $this->getCode();
$width = $this->width / $this->num;
for ($i = 0; $i < $this->num; $i++) {
$filepath = $img ? $imgfont.$img[array_rand($img)].'/'.strtolower($code[$i]).'.gif' : '';
$len = $i * $width;
if ($filepath && file_exists($filepath)) {
$src_im = imagecreatefromgif($filepath);
list($srcW,$srcH) = getimagesize($filepath);
$dstW = $this->height/2;
$dstH = $dstW * $srcH / $srcW;
$x = mt_rand($len,$len + $width - $dstW);
$y = mt_rand(0,$this->height - $dstH);
if ($this->style & 16) {
imagecolorset($src_im,0,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
}
if ($this->style & 2) {
$rate = mt_rand(80,120)/100;
$dstW *= $rate;
$dstH *= $rate;
}
imagecopyresized($im, $src_im, $x, $y, 0, 0, $dstW, $dstH, $srcW, $srcH);
} else {
$color = $this->getColor($im);
$x = mt_rand($len,$len + $width - 10);
$y = mt_rand(10,$this->height - 10);
imagechar($im,5,$x,$y,$code[$i],$color);
}
}
}
function disturbcode(&$im) {
$code = $this->getCode(1,false);
$x = $this->width / $this->num;
$y = $this->height / 10;
$color = $this->getColor($im);
for ($i = 0; $i <= 3; $i++) {
imagechar($im,5,$x*$i+mt_rand(0,$x-10),mt_rand($y,$this->height-10-$y),$code[$i],$color);
}
}
function disturbimg(&$im) {
$nums = $this->height / 10;
for ($i=0; $i <= $nums; $i++) {
$color = $this->getColor($im);
$x = mt_rand(0,$this->width);
$y = mt_rand(0,$this->height);
if (mt_rand(0,1)) {
imagearc($im,$x,$y,mt_rand(0,$this->width),mt_rand(0,$this->height),mt_rand(0,360),mt_rand(0, 360),$color);
} else {
imageline($im,$x,$y,mt_rand(0,$this->width),mt_rand(0,$this->height),$color);
}
}
}
function ckgif() {
require_once R_P.'require/gif.class.php';
$trueframe = mt_rand(1, 9);
$im = $this->background();
imagepng($im);
imagedestroy($im);
$bg = ob_get_contents();
ob_clean();
for ($i = 0; $i <= 9; $i++) {
$im = imagecreatefromstring($bg);
($this->style & 32) && $this->disturbimg($im);
$x[$i] = $y[$i] = 0;
if ($i == $trueframe) {
($this->style & 1 || $this->gdtype == 2) ? $this->ttffont($im) : $this->imgfont($im);
$d[$i] = mt_rand(250, 400);
} else {
$this->disturbcode($im);
$d[$i] = mt_rand(5, 15);
}
imagegif($im);
imagedestroy($im);
$frame[$i] = ob_get_contents();
ob_clean();
}
$anim = new GIFEncoder($frame, $d, 0, 0, 0, 0, 0, 'bin');
header('Content-type: image/gif');
echo $anim->getAnimation();
}
function ckpng() {
$im = $this->background();
($this->style & 32) && $this->disturbimg($im);
($this->style & 1 || $this->gdtype == 2) ? $this->ttffont($im) : $this->imgfont($im);
imagepng($im);
imagedestroy($im);
}
function out() {
if (!function_exists('imagecreatetruecolor') || !function_exists('imagecolorallocate') || !function_exists('imagepng') || !function_exists('imagettftext')) {
header("ContentType: image/bmp");
$code = $this->getCode(4);
echo $this->Codebmp($code,$this->num);
} elseif (empty($_GET['nowtime'])) {
$im = $this->background();
imagepng($im);
imagedestroy($im);
} elseif (($this->style & 64) && function_exists('imagegif')) {
$this->ckgif();
} else {
$this->ckpng();
}
}
function cookie($code) {
global $timestamp;
Cookie('cknum',StrCode($timestamp."\t\t".md5($code.$timestamp)));
}
function Codebmp($nmsg,$num) {
$color = array(
0 => chr(0).chr(0).chr(0),
1 => chr(255).chr(255).chr(255),
);
$numbers = array(
0 => '1110000111110111101111011110111101001011110100101111010010111101001011110111101111011110111110000111',
1 => '1111011111110001111111110111111111011111111101111111110111111111011111111101111111110111111100000111',
2 => '1110000111110111101111011110111111111011111111011111111011111111011111111011111111011110111100000011',
3 => '1110000111110111101111011110111111110111111100111111111101111111111011110111101111011110111110000111',
4 => '1111101111111110111111110011111110101111110110111111011011111100000011111110111111111011111111000011',
5 => '1100000011110111111111011111111101000111110011101111111110111111111011110111101111011110111110000111',
6 => '1111000111111011101111011111111101111111110100011111001110111101111011110111101111011110111110000111',
7 => '1100000011110111011111011101111111101111111110111111110111111111011111111101111111110111111111011111',
8 => '1110000111110111101111011110111101111011111000011111101101111101111011110111101111011110111110000111',
9 => '1110001111110111011111011110111101111011110111001111100010111111111011111111101111011101111110001111'
);
$code = '';
$code .= chr(66).chr(77).chr(230).chr(4).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(54).chr(0).chr(0).chr(0).chr(40).chr(0).chr(0).chr(0).chr(40).chr(0).chr(0).chr(0).chr(10).chr(0).chr(0).chr(0).chr(1).chr(0);
$code .= chr(24).chr(0).chr(0).chr(0).chr(0).chr(0).chr(176).chr(4).chr(0).chr(0).chr(18).chr(11).chr(0).chr(0).chr(18).chr(11).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0);
for ($i=9;$i>=0;$i--){
for ($j=0;$j<$num;$j++){
for ($k=1;$k<=10;$k++){
if (mt_rand(0,7)<1) {
$code .= $color[mt_rand(0,1)];
} else {
$code .= $color[substr($numbers[$nmsg[$j]],$i*10+$k,1)];
}
}
}
}
return $code;
}
function convert($str,$to_encoding,$from_encoding) {
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($str,$to_encoding,$from_encoding);
} else {
require_once(R_P.'wap/chinese.php');
$chs = new Chinese($from_encoding,$to_encoding);
return $chs->Convert($str);
}
}
}
$ck = new CkCode();
$ck->out();
exit;
function NotModified(){
if (php_sapi_name()=='cgi' || php_sapi_name()=='cgi-fcgi') {
header('Status: 304 Not Modified');
} else {
header('HTTP/1.1 304 Not Modified');
}
}
function N_imagettfbbox($size,$angle,$fontfile,$text) {
if (function_exists('imagecreatetruecolor')) {
$im = imagecreatetruecolor(1,1);
} else {
$im = imagecreate(1,1);
}
$bbox = imagettftext($im,$size,$angle,0,0,imagecolorallocate($im,0,0,0),$fontfile,$text);
imagedestroy($im);
return $bbox;
}
?>