/home/mip/public_html_/old_mip/captcha/code.php
<?
/***************************************************************************\
| |
| Copyright 2007 Image Validator |
| Pavel Tzonkov <pavelc@users.sourceforge.net> |
| |
| Image Validator is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| Image Validator is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with Image Validator; if not, write to the Free Software Foundation, |
| Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
\***************************************************************************/
session_start();
require "_config.php";
$line_colors = preg_split("/,\s*?/", CODE_LINE_COLORS);
$char_colors = preg_split("/,\s*?/", CODE_CHAR_COLORS);
$fonts = collect_files(PATH_TTF, "ttf");
$img = imagecreatetruecolor(CODE_WIDTH, CODE_HEIGHT);
imagefilledrectangle($img, 0, 0, CODE_WIDTH - 1, CODE_HEIGHT - 1, gd_color(CODE_BG_COLOR));
// Draw lines
for ($i = 0; $i < CODE_LINES_COUNT; $i++)
imageline($img,
rand(0, CODE_WIDTH - 1),
rand(0, CODE_HEIGHT - 1),
rand(0, CODE_WIDTH - 1),
rand(0, CODE_HEIGHT - 1),
gd_color($line_colors[rand(0, count($line_colors) - 1)])
);
// Draw code
$code = "";
$y = (CODE_HEIGHT / 2) + (CODE_FONT_SIZE / 2);
for ($i = 0; $i < CODE_CHARS_COUNT; $i++) {
$color = gd_color($char_colors[rand(0, count($char_colors) - 1)]);
$angle = rand(-30, 30);
$char = substr(CODE_ALLOWED_CHARS, rand(0, strlen(CODE_ALLOWED_CHARS) - 1), 1);
$font = PATH_TTF . "/" . $fonts[rand(0, count($fonts) - 1)];
$x = (intval((CODE_WIDTH / CODE_CHARS_COUNT) * $i) + (CODE_FONT_SIZE / 2));
$code .= $char;
//imagettftext($img, CODE_FONT_SIZE, $angle, $x, $y, $color, $font, $char);
//imagefttext($img, CODE_FONT_SIZE, $angle, $x, $y, $font, $char);
imagestring ($img, CODE_FONT_SIZE, $x, $y, $char, $color);
}
$_SESSION['__img_code__'] = md5($code);
header("Content-Type: image/png");
imagepng($img);
imagedestroy($img);
function gd_color($html_color) {
return preg_match('/^#?([\dA-F]{6})$/i', $html_color, $rgb)
? hexdec($rgb[1]) : false;
}
function collect_files($dir, $ext) {
if (false !== ($dir = opendir($dir))) {
$files = array();
while (false !== ($file = readdir($dir)))
if (preg_match("/\\.$ext\$/i", $file))
$files[] = $file;
return $files;
} else
return false;
}
?>