1 |
596
|
thorn
|
<?php
|
2 |
|
|
|
3 |
|
|
// $Id$
|
4 |
|
|
|
5 |
|
|
/*
|
6 |
|
|
|
7 |
|
|
Website Baker Project <http://www.websitebaker.org/>
|
8 |
|
|
Copyright (C) 2004-2008, Ryan Djurovich
|
9 |
|
|
|
10 |
|
|
Website Baker is free software; you can redistribute it and/or modify
|
11 |
|
|
it under the terms of the GNU General Public License as published by
|
12 |
|
|
the Free Software Foundation; either version 2 of the License, or
|
13 |
|
|
(at your option) any later version.
|
14 |
|
|
|
15 |
|
|
Website Baker is distributed in the hope that it will be useful,
|
16 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
17 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
18 |
|
|
GNU General Public License for more details.
|
19 |
|
|
|
20 |
|
|
You should have received a copy of the GNU General Public License
|
21 |
|
|
along with Website Baker; if not, write to the Free Software
|
22 |
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
23 |
|
|
|
24 |
|
|
*/
|
25 |
|
|
|
26 |
|
|
require_once("../../../config.php");
|
27 |
|
|
require_once(WB_PATH.'/include/captcha/captcha.php');
|
28 |
|
|
|
29 |
|
|
// get lists of fonts and backgrounds
|
30 |
|
|
require_once(WB_PATH.'/search/search_modext.php');
|
31 |
|
|
list($fonts, $dirs) = list_files_dirs(WB_PATH.'/include/captcha/fonts', false);
|
32 |
|
|
list($bgs, $dirs) = list_files_dirs(WB_PATH.'/include/captcha/backgrounds', false);
|
33 |
598
|
thorn
|
$fonts = clear_filelist($fonts, '\.ttf$');
|
34 |
|
|
$bgs = clear_filelist($bgs, '\.png$');
|
35 |
596
|
thorn
|
|
36 |
|
|
// make random string
|
37 |
|
|
if(!function_exists('randomString')) {
|
38 |
|
|
function randomString($len) {
|
39 |
|
|
list($usec, $sec) = explode(' ', microtime());
|
40 |
|
|
srand((float)$sec + ((float)$usec * 100000));
|
41 |
|
|
//$possible="ABCDEFGHJKLMNPRSTUVWXYZabcdefghkmnpqrstuvwxyz23456789";
|
42 |
|
|
$possible="abdfhkrsvwxyz23456789";
|
43 |
|
|
$str="";
|
44 |
|
|
while(strlen($str)<$len) {
|
45 |
|
|
$str.=substr($possible,(rand()%(strlen($possible))),1);
|
46 |
|
|
}
|
47 |
|
|
return($str);
|
48 |
|
|
}
|
49 |
|
|
}
|
50 |
|
|
$text = randomString(5); // number of characters
|
51 |
|
|
$_SESSION['captcha'] = $text;
|
52 |
|
|
|
53 |
|
|
// choose a font and background
|
54 |
|
|
$font = $fonts[array_rand($fonts)];
|
55 |
|
|
$bg = $bgs[array_rand($bgs)];
|
56 |
|
|
// get image-dimensions
|
57 |
|
|
list($width, $height, $type, $attr) = getimagesize($bg);
|
58 |
|
|
|
59 |
|
|
// create image
|
60 |
|
|
$image_failed = true;
|
61 |
|
|
do {
|
62 |
|
|
$image = ImageCreateFromPNG($bg); // backgroundimage
|
63 |
|
|
$grey = rand(0,50);
|
64 |
|
|
$color = ImageColorAllocate($image, $grey, $grey, $grey); // Farbe
|
65 |
|
|
$ttf = $font;
|
66 |
|
|
$ttfsize = 25; // fontsize
|
67 |
|
|
$angle = rand(0,5);
|
68 |
|
|
$t_x = rand(5,30);
|
69 |
|
|
$t_y = rand($height-10,$height-2);
|
70 |
|
|
$res = imagettftext($image, $ttfsize, $angle, $t_x, $t_y, $color, $ttf, $text);
|
71 |
|
|
// check if text fits into the image
|
72 |
598
|
thorn
|
if(($res[0]>0 && $res[0]<$width) && ($res[1]>0 && $res[1]<$height) &&
|
73 |
|
|
($res[2]>0 && $res[2]<$width) && ($res[3]>0 && $res[3]<$height) &&
|
74 |
|
|
($res[4]>0 && $res[4]<$width) && ($res[5]>0 && $res[5]<$height) &&
|
75 |
|
|
($res[6]>0 && $res[6]<$width) && ($res[7]>0 && $res[7]<$height)
|
76 |
|
|
) {
|
77 |
596
|
thorn
|
$image_failed = false;
|
78 |
598
|
thorn
|
}
|
79 |
596
|
thorn
|
} while($image_failed);
|
80 |
|
|
|
81 |
|
|
captcha_header();
|
82 |
|
|
ob_start();
|
83 |
|
|
imagepng($image);
|
84 |
|
|
header("Content-Length: ".ob_get_length());
|
85 |
|
|
ob_end_flush();
|
86 |
|
|
imagedestroy($image);
|
87 |
|
|
|
88 |
598
|
thorn
|
?>
|