Файл: cap/captcha-gen.php
Строк: 91
<?php
require_once("captcha-config.php");
class DMTcaptcha{
function DMTcaptcha($keystring){
require(dirname(__FILE__).'/captcha-config.php');
while(true){
if(!preg_match('/cb|rn|rm|mm|co|do|db|qp|qb|dp|ww|vw|wv/', $keystring)) break;
}
$im=imagecreatefrompng(dirname(__FILE__)."/fonts/back1.png");
$width = imagesx($im);
$height = imagesy($im);
$font_color = imagecolorallocate($im, $scolor[$simbol_color][0], $scolor[$simbol_color][1],$scolor[$simbol_color][2]);
$angle=0;
$px=$margin_left;
mgradient_region($im,array ( mt_rand(0,200), mt_rand(0,200), mt_rand(0,200), mt_rand(0,200), mt_rand(0,200), mt_rand(0,200) ));
imagettftext($im, mt_rand($font_size_min,$font_size_max),$angle, $px, $margin_top, $font_color,dirname(__FILE__)."/fonts/rotos_$font_ttf.ttf",$keystring);
$rand=mt_rand(0,1);
if ($rand) $rand=-1; else $rand=1;
wave_region($im,0,0,$width,$height,$rand*mt_rand($amplitude_min,$amplitude_max),mt_rand(40,50));
header('Expires: Sat, 29 May 2008 00:00:00 GMT');
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', FALSE);
header('Pragma: no-cache');
if(function_exists("imagepng")){
header("Content-Type: image/x-png");
imagepng($im);
}else if(function_exists("imagegif")){
header("Content-Type: image/gif");
imagegif($im);
}elseif(function_exists("imagejpeg")){
header("Content-Type: image/jpeg");
imagejpeg($im, null, $jpeg_quality);
}
}
function getKeyString(){
return $keystring;
}
}
function mgradient_region($im,$array_grad){
list ( $r1, $g1, $b1, $r2, $g2, $b2 ) = $array_grad;
$h=imagesy($im)+130;
$w=imagesx($im);
$vector[0]=mt_rand(2,10)/10;
$vector[1]=mt_rand(2,10)/10;
$x1 = 0;
$y1 = -mt_rand(10,200)*$vector[1];
$x2 = $w;
$y2 = -mt_rand(10,200)*$vector[1];
$inc=-130;
while ($y1<$h || $y2<$h){
$r = ( $r2 - $r1 != 0 ) ? $r1 + ( $r2 - $r1 ) * ( $inc / $h ) : $r1;
$g = ( $g2 - $g1 != 0 ) ? $g1 + ( $g2 - $g1 ) * ( $inc / $h ) : $g1;
$b = ( $b2 - $b1 != 0 ) ? $b1 + ( $b2 - $b1 ) * ( $inc / $h ) : $b1;
//$color = imagecolorallocate( $im, $r, $g, $b );
$color = imagecolorresolve( $im, $r, $g, $b );
imageline($im, $x1, $y1, $x2, $y2, $color );
imageline($im, $x1-2, $y1, $x2, $y2+1, $color );
$y1+=$vector[0];
$y2+=$vector[1];
$inc++;
}
}
function wave_region($img, $x, $y, $width, $height,$amplitude = 4.5,$period = 30){
$mult = 2;
$img2 = imagecreatetruecolor($width * $mult, $height * $mult);
imagecopyresampled ($img2,$img,0,0,$x,$y,$width * $mult,$height * $mult,$width, $height);
for ($i = 0;$i < ($width * $mult);$i += 2)
imagecopy($img2,$img2,$x + $i - 2,$y + sin($i / $period) * $amplitude,$x + $i,$y, 2,($height * $mult));
imagecopyresampled($img,$img2,$x,$y,0,0,$width, $height,$width * $mult,$height * $mult);
imagedestroy($img2);
}
?>