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<?php
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// $Id: calc_image.php 915 2009-01-21 19:27:01Z Ruebenwurzel $
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/*
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Website Baker Project <http://www.websitebaker.org/>
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Copyright (C) 2004-2009, Ryan Djurovich
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Website Baker is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Website Baker is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Website Baker; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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require_once("../../../config.php");
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require_once(WB_PATH.'/include/captcha/captcha.php');
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if(!isset($_SESSION['captcha_time']))
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exit;
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unset($_SESSION['captcha_time']);
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// Captcha
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$_SESSION['captcha'] = '';
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mt_srand((double)microtime()*1000000);
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$n = mt_rand(1,3);
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switch ($n) {
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case 1:
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$x = mt_rand(1,9);
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$y = mt_rand(1,9);
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$_SESSION['captcha'] = $x + $y;
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$cap = "$x+$y";
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break;
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case 2:
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$x = mt_rand(10,20);
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$y = mt_rand(1,9);
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$_SESSION['captcha'] = $x - $y;
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$cap = "$x-$y";
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break;
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case 3:
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$x = mt_rand(2,10);
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$y = mt_rand(2,5);
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$_SESSION['captcha'] = $x * $y;
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$cap = "$x*$y";
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break;
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}
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// create reload-image
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$reload = ImageCreateFromPNG(WB_PATH.'/include/captcha/reload_120_30.png'); // reload-overlay
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$image = imagecreate(120, 30);
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$white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
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$gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0);
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$darkgray = imagecolorallocate($image, 0x30, 0x30, 0x30);
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for($i = 0; $i < 30; $i++) {
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$x1 = mt_rand(0,120);
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$y1 = mt_rand(0,30);
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$x2 = mt_rand(0,120);
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$y2 = mt_rand(0,30);
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imageline($image, $x1, $y1, $x2, $y2 , $gray);
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}
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$x = 10;
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$l = strlen($cap);
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for($i = 0; $i < $l; $i++) {
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$fnt = mt_rand(3,5);
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$x = $x + mt_rand(12 , 20);
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$y = mt_rand(7 , 12);
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imagestring($image, $fnt, $x, $y, substr($cap, $i, 1), $darkgray);
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}
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imagealphablending($reload, TRUE);
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imagesavealpha($reload, TRUE);
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// overlay
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imagecopy($reload, $image, 0,0,0,0, 120,30);
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imagedestroy($image);
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$image = $reload;
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captcha_header();
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imagepng($image);
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imagedestroy($image);
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?>
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