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<?php
/* AutoScript-Protection
* - Codeimage
*
* @author: Dominik Paulus, [email]mail@dpaulus.de[/email]
* @date: 05/25/06
* @version: 3.4b
* @modified by: EasyJoomla.org
*/
// Imagetype: JPEG, PNG, GIF
$type = "JPEG";
$codeid = $_GET['captcha_id'];
$codeid = mysql_escape_string($codeid);
// Imagecolors
function hex2rgb ( $hex )
{
$hex = preg_replace("/[^a-fA-F0-9]/", "", $hex);
$rgb = array();
if ( strlen ( $hex ) == 3 )
{
$rgb[0] = hexdec ( $hex[0] . $hex[0] );
$rgb[1] = hexdec ( $hex[1] . $hex[1] );
$rgb[2] = hexdec ( $hex[2] . $hex[2] );
}
elseif ( strlen ( $hex ) == 6 )
{
$rgb[0] = hexdec ( $hex[0] . $hex[1] );
$rgb[1] = hexdec ( $hex[2] . $hex[3] );
$rgb[2] = hexdec ( $hex[4] . $hex[5] );
}
else
{
return "ERR: Incorrect colorcode, expecting 3 or 6 chars (a-f, A-F, 0-9)";
}
return $rgb;
}
$back_rgb = hex2rgb("fafafa");
$code_rgb = hex2rgb("333333");
$line_rgb = hex2rgb("787777");
$border_rgb = hex2rgb("333333");
$colors = array(
// R G B // Only values between 0-255!
$back_rgb[0], $back_rgb[1], $back_rgb[2], // Background
$code_rgb[0], $code_rgb[1], $code_rgb[2], // Code
$line_rgb[0], $line_rgb[1], $line_rgb[2], // Vertical Lines
$border_rgb[0], $border_rgb[1], $border_rgb[2] // Border (Last value without ',')
);
// Imagesize
$x = 250; // width
$y = 70; // height
// ============== Do not change anything below this line! ============
$y2 = $y/2; $x2 = $x/2;
// Codetype
$numeric = true; // true = numeric, false = alphanumeric
mt_srand((double)microtime()*1000000);
// Fontsetup
$fonts = array();
$fd = opendir('./fonts/');
while (false !== ($filename = readdir($fd)))
$fonts[] = $filename;
rsort($fonts);
if(count($fonts) < 3) die('No fonts found!');
$font = './fonts/'.$fonts[mt_rand(0,(count($fonts)-3))];
// Numerical code
if($numeric)
$seccode = strval(mt_rand(10000, 99999));
else {
// $string = "abcdefghijklmnopqrstuvwxyz0123456789";
$string = "abcdefghjkmnpqrstuvwxyz2345689"; // better
$stringlen = strlen($string);
$seccode = "";
for($i = 0; $i < 5; $i++)
$seccode .= $string{mt_rand(0, $stringlen)};
}
$clen = strlen($seccode);
include_once("../../../../configuration.php");
if(class_exists('JConfig'))
{
$config = new JConfig;
mysql_connect($config->host, $config->user, $config->password);
mysql_select_db($config->db);
$mosConfig_dbprefix = $config->dbprefix;
}
else
{
die("Could not find Config class!");
}
$sqlab = "select * from ".$mosConfig_dbprefix."easycaptchas_dpaulus";
$res = mysql_query($sqlab);
while ($code = mysql_fetch_assoc($res))
{
$age = time() - $code["codedate"];
if($age > 600)
{
$sqlab = "delete from ".$mosConfig_dbprefix."easycaptchas_dpaulus where CodeID = '".$code["CodeID"]."'";
mysql_query($sqlab);
}
}
$seccode = strtolower($seccode);
$sqlab = "select * from ".$mosConfig_dbprefix."easycaptchas_dpaulus where CodeID = '$codeid'";
$res = mysql_query($sqlab);
if (!mysql_num_rows($res))
{
$sqlab = "insert ".$mosConfig_dbprefix."easycaptchas_dpaulus (CodeID, CodeMD5, codedate) values ('$codeid', '".md5($seccode)."','".time()."')";
mysql_query($sqlab);
}
else
{
$sqlab = "UPDATE ".$mosConfig_dbprefix."easycaptchas_dpaulus SET CodeMD5 = '".md5($seccode)."', codedate = '".time()."' WHERE CodeID = '$codeid'";
mysql_query($sqlab);
}
// create image
$im = ImageCreateTrueColor($x, $y) or die('ImageCreate error!');
// Image colors
$bgcolor = ImageColorAllocate($im, $colors[0], $colors[1], $colors[2]);
$fontcolor = ImageColorAllocate($im, $colors[3], $colors[4], $colors[5]);
$linecolor = ImageColorAllocate($im, $colors[6], $colors[7], $colors[8]);
$bordercolor = ImageColorAllocate($im, $colors[9], $colors[10], $colors[11]);
$alphacolor = ImageColorAllocate($im, 0, 255, 0);
ImageFill($im, 0, 0, $bgcolor);
//ImageColorTransparent($im, $bgcolor);
/**/
// Code
$xspace =70;
$yspace = 60;
$size = 25;
$angle = 20;
$ttfborders = array();
for($i = 0; $i < $clen; $i++) {
$tmp = ImageCreateTrueColor($xspace,$yspace);
ImageFill($tmp, 0, 0, $bgcolor);
$ttfborders[] = ImageTTFText($tmp, $size+mt_rand(0, 8), mt_rand(-$angle, $angle), 20, $yspace-10, $fontcolor, $font, $seccode{$i});
morph($tmp, 0, 0, 50, 50);
ImageColorTransparent($tmp, $bgcolor);
ImageCopyMerge($im, $tmp, ($i)*50, 2, 0, 0, $xspace, $yspace, 100);
ImageDestroy($tmp);
}
// Morph
function morph($im, $sx, $sy, $w, $h) {
$morphx = $h;
$morphy = mt_rand(3.5,5.2);
$mx = $sx;
$my = $sy;
$mvalues = array();
for($i = 0; $i < $morphx/2; $i++) {
$mvalues[] = $mx-(log($i+1)*$morphy);
// dx dy sx sy w h
ImageCopyMerge($im, $im, $mvalues[$i], $my+$i, $mx, $my+$i, $w+20, 1, 0);
}
$mvalues = array_reverse($mvalues);
$mvcount = count($mvalues);
for($i = 0; $i < $mvcount; $i++) {
// dx dy sx sy w h
ImageCopyMerge($im, $im, $mvalues[$i], $my+$i+$mvcount, $mx, $my+$i+$mvcount, $w+20, 1, 0);
}
}
// Wave
ImageSetThickness($im, 3);
$ux = $uy = 0;
$vx = 0; //mt_rand(10,15);
$vy = mt_rand($y2-3, $y2+3);
for($i = 0; $i < 10; $i++) {
$ux = $vx + mt_rand(20,30);
$uy = mt_rand($y2-8,$y2+8);
ImageSetThickness($im, mt_rand(1,2));
ImageLine($im, $vx, $vy, $ux, $uy, $linecolor);
$vx = $ux;
$vy = $uy;
}
ImageLine($im, $vx, $vy, $x, $y2, $linecolor);
// Triangle
ImageSetThickness($im, 3);
$ux = mt_rand($x2-10, $x2+10);
$uy = mt_rand($y2-10, $y2-30);
ImageLine($im, mt_rand(10,$x2-20), $y, $ux, $uy, $linecolor);
ImageSetThickness($im, 1);
ImageLine($im, mt_rand($x2+20,$x-10), $y, $ux, $uy, $linecolor);
ImageSetThickness($im, 1);
// Border
ImageSetThickness($im, 1);
ImageLine($im, 0, 0, 0, $y, $bordercolor); // left
ImageLine($im, 0, 0, $x, 0, $bordercolor); // top
ImageLine($im, 0, $y-1, $x, $y-1, $bordercolor); // bottom
ImageLine($im, $x-1, 0, $x-1, $y-1, $bordercolor); // right
for($i = $x/$clen; $i < $x; $i+=$x/$clen)
ImageLine($im, $i, 0, $i, $y, $bordercolor);
// Debug
//ImageString($im, 8, 0, $y-20, $font, $fontcolor);
// Create Image
switch($type) {
///////////////////////////////////////////
case 'JPEG':
// JPEG output
Header("Content-Type: image/jpeg");
ImageJPEG($im,"",75);
break;
///////////////////////////////////////////
case 'PNG':
// PNG output
Header("Content-Type: image/png");
ImagePNG($im);
break;
///////////////////////////////////////////
case 'GIF':
// GIF output
Header("Content-Type: image/gif");
ImageGIF($im);
break;
///////////////////////////////////////////
default:
die("Wrong \$type in img.php (should be JPEG, PNG or GIF)\n");
///////////////////////////////////////////
}
ImageDestroy($im);
?>