dolibarr  18.0.0
antispamimage.php
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1 <?php
2 /* Copyright (C) 2005-2007 Laurent Destailleur <eldy@users.sourceforge.net>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <https://www.gnu.org/licenses/>.
16  * or see https://www.gnu.org/
17  */
18 
24 define('NOLOGIN', 1);
25 
26 if (!defined('NOREQUIREUSER')) {
27  define('NOREQUIREUSER', 1);
28 }
29 if (!defined('NOREQUIREDB')) {
30  define('NOREQUIREDB', 1);
31 }
32 if (!defined('NOREQUIRETRAN')) {
33  define('NOREQUIRETRAN', 1);
34 }
35 if (!defined('NOREQUIREMENU')) {
36  define('NOREQUIREMENU', 1);
37 }
38 if (!defined('NOREQUIRESOC')) {
39  define('NOREQUIRESOC', 1);
40 }
41 if (!defined('NOTOKENRENEWAL')) {
42  define('NOTOKENRENEWAL', 1);
43 }
44 
45 require_once '../main.inc.php';
46 
47 
48 /*
49  * View
50  */
51 
52 $length = 5;
53 $letters = 'aAbBCDeEFgGhHJKLmMnNpPqQRsStTuVwWXYZz2345679';
54 $number = strlen($letters);
55 $string = '';
56 for ($i = 0; $i < $length; $i++) {
57  $string .= $letters[mt_rand(0, $number - 1)];
58 }
59 //print $string;
60 
61 
62 $sessionkey = 'dol_antispam_value';
63 $_SESSION[$sessionkey] = $string;
64 
65 $img = imagecreate(80, 32);
66 if (empty($img)) {
67  dol_print_error('', "Problem with GD creation");
68  exit;
69 }
70 
71 // Define mime type
72 top_httphead('image/png', 1);
73 
74 $background_color = imagecolorallocate($img, 250, 250, 250);
75 $ecriture_color = imagecolorallocate($img, 0, 0, 0);
76 imagestring($img, 4, 24, 8, $string, $ecriture_color);
77 imagepng($img);
dol_print_error($db='', $error='', $errors=null)
Displays error message system with all the information to facilitate the diagnosis and the escalation...
if(!defined('NOREQUIREMENU')) if(!empty(GETPOST('seteventmessages', 'alpha'))) if(!function_exists("llxHeader")) top_httphead($contenttype='text/html', $forcenocache=0)
Show HTTP header.
Definition: main.inc.php:1494