|
1
|
<?php
|
|
2
|
|
|
3
|
// $Id: captcha.php 1444 2011-04-21 23:46:56Z Luisehahne $
|
|
4
|
|
|
5
|
/*
|
|
6
|
|
|
7
|
Website Baker Project <http://www.websitebaker.org/>
|
|
8
|
Copyright (C) 2004-2009, 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
|
// displays the image or text inside an <iframe>
|
|
27
|
if(!function_exists('display_captcha_real')) {
|
|
28
|
function display_captcha_real($kind='image') {
|
|
29
|
$t = time();
|
|
30
|
$output = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" ";
|
|
31
|
$output .= "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
|
|
32
|
$output .= "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"";
|
|
33
|
$output .= strtolower(LANGUAGE)."\" lang=\"".strtolower(LANGUAGE)."\">\n";
|
|
34
|
$output .= "\t<head>\n\t\t<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>\n";
|
|
35
|
$output .= "\t\t<title>captcha</title>\n\t</head>\n\t<body>\n";
|
|
36
|
$_SESSION['captcha_time'] = $t;
|
|
37
|
if($kind=='image') {
|
|
38
|
$output .= "\t\t<a title=\"reload\" href=\"".WB_URL."/include/captcha/captcha.php?display_captcha_X986E21=2\">";
|
|
39
|
$output .= "<img style=\"border: none;\" src=\"".WB_URL."/include/captcha/captchas/";
|
|
40
|
$output .= CAPTCHA_TYPE.".php?t=".$t."\" alt=\"Captcha\" /></a>\n";
|
|
41
|
} else {
|
|
42
|
$output .= "\t\t<h2>error</h2>";
|
|
43
|
}
|
|
44
|
$output .= "\t</body>\n</html>";
|
|
45
|
echo $output;
|
|
46
|
}
|
|
47
|
}
|
|
48
|
|
|
49
|
// called from an <iframe>
|
|
50
|
if(isset($_GET['display_captcha_X986E21'])) {
|
|
51
|
require('../../config.php');
|
|
52
|
switch(CAPTCHA_TYPE) {
|
|
53
|
case 'calc_image':
|
|
54
|
case 'calc_ttf_image':
|
|
55
|
case 'ttf_image':
|
|
56
|
case 'old_image':
|
|
57
|
display_captcha_real('image');
|
|
58
|
break;
|
|
59
|
}
|
|
60
|
exit(0);
|
|
61
|
}
|
|
62
|
|
|
63
|
|
|
64
|
// Make sure page cannot be accessed directly
|
|
65
|
if(!defined('WB_PATH')) { exit("Cannot access this file directly"); }
|
|
66
|
|
|
67
|
// check if module language file exists for the language set by the user (e.g. DE, EN)
|
|
68
|
global $MOD_CAPTCHA;
|
|
69
|
if(!file_exists(WB_PATH.'/modules/captcha_control/languages/'.LANGUAGE .'.php')) {
|
|
70
|
// no module language file exists for the language set by the user, include default module language file EN.php
|
|
71
|
require_once(WB_PATH.'/modules/captcha_control/languages/EN.php');
|
|
72
|
} else {
|
|
73
|
// a module language file exists for the language defined by the user, load it
|
|
74
|
require_once(WB_PATH.'/modules/captcha_control/languages/'.LANGUAGE .'.php');
|
|
75
|
}
|
|
76
|
|
|
77
|
// output-handler for image-captchas to determine size of image
|
|
78
|
if(!function_exists('captcha_header')) {
|
|
79
|
function captcha_header() {
|
|
80
|
header("Expires: Mon, 1 Jan 1990 05:00:00 GMT");
|
|
81
|
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
|
|
82
|
header("Cache-Control: no-store, no-cache, must-revalidate, proxy-revalidate");
|
|
83
|
header("Pragma: no-cache");
|
|
84
|
header("Content-type: image/png");
|
|
85
|
return;
|
|
86
|
}
|
|
87
|
}
|
|
88
|
|
|
89
|
// get list of available CAPTCHAS for the dropdown-listbox in admin-tools
|
|
90
|
if(extension_loaded('gd') && function_exists('imagepng') && function_exists('imagettftext')) {
|
|
91
|
$useable_captchas = array(
|
|
92
|
'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
|
|
93
|
'calc_image'=>$MOD_CAPTCHA_CONTROL['CALC_IMAGE'],
|
|
94
|
'calc_ttf_image'=>$MOD_CAPTCHA_CONTROL['CALC_TTF_IMAGE'],
|
|
95
|
'ttf_image'=>$MOD_CAPTCHA_CONTROL['TTF_IMAGE'],
|
|
96
|
'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],
|
|
97
|
'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
|
|
98
|
);
|
|
99
|
} elseif(extension_loaded('gd') && function_exists('imagepng')) {
|
|
100
|
$useable_captchas = array(
|
|
101
|
'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
|
|
102
|
'calc_image'=>$MOD_CAPTCHA_CONTROL['CALC_IMAGE'],
|
|
103
|
'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],
|
|
104
|
'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
|
|
105
|
);
|
|
106
|
} else {
|
|
107
|
$useable_captchas = array(
|
|
108
|
'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
|
|
109
|
'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
|
|
110
|
);
|
|
111
|
}
|
|
112
|
|
|
113
|
if(!function_exists('call_captcha')) {
|
|
114
|
function call_captcha($action='all', $style='', $sec_id='') {
|
|
115
|
global $MOD_CAPTCHA;
|
|
116
|
$t = time();
|
|
117
|
$_SESSION['captcha_time'] = $t;
|
|
118
|
|
|
119
|
// get width and height of captcha image for use in <iframe>
|
|
120
|
switch(CAPTCHA_TYPE) {
|
|
121
|
case 'calc_image':
|
|
122
|
$captcha_width = 142;
|
|
123
|
$captcha_height = 30;
|
|
124
|
break;
|
|
125
|
case 'calc_ttf_image':
|
|
126
|
$captcha_width = 162;
|
|
127
|
$captcha_height = 40;
|
|
128
|
break;
|
|
129
|
case 'ttf_image':
|
|
130
|
$captcha_width = 162;
|
|
131
|
$captcha_height = 40;
|
|
132
|
break;
|
|
133
|
case 'old_image':
|
|
134
|
$captcha_width = 142;
|
|
135
|
$captcha_height = 30;
|
|
136
|
break;
|
|
137
|
default:
|
|
138
|
$captcha_width = 250;
|
|
139
|
$captcha_height = 100;
|
|
140
|
}
|
|
141
|
|
|
142
|
if($action=='all') {
|
|
143
|
switch(CAPTCHA_TYPE) {
|
|
144
|
case 'text': // text-captcha
|
|
145
|
?><table class="captcha_table" summary="captcha control"><tr>
|
|
146
|
<td class="text_captcha">
|
|
147
|
<?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>
|
|
148
|
</td>
|
|
149
|
<td></td>
|
|
150
|
<td><input type="text" name="captcha" maxlength="50" style="width:150px;" /></td>
|
|
151
|
<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST']; ?></td>
|
|
152
|
</tr></table><?php
|
|
153
|
break;
|
|
154
|
case 'calc_text': // calculation as text
|
|
155
|
?><table class="captcha_table" summary="captcha control"><tr>
|
|
156
|
<td class="text_captcha">
|
|
157
|
<?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>
|
|
158
|
</td>
|
|
159
|
<td> = </td>
|
|
160
|
<td><input type="text" name="captcha" maxlength="10" style="width:20px;" /></td>
|
|
161
|
<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></td>
|
|
162
|
</tr></table><?php
|
|
163
|
break;
|
|
164
|
case 'calc_image': // calculation with image (old captcha)
|
|
165
|
case 'calc_ttf_image': // calculation with varying background and ttf-font
|
|
166
|
?><table class="captcha_table" summary="captcha control"><tr>
|
|
167
|
<td class="image_captcha">
|
|
168
|
<?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&s=$sec_id"; ?>">
|
|
169
|
<img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&s=$sec_id"; ?>" alt="Captcha" />
|
|
170
|
</iframe>
|
|
171
|
</td>
|
|
172
|
<td> = </td>
|
|
173
|
<td><input type="text" name="captcha" maxlength="10" style="width:20px;" /></td>
|
|
174
|
<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></td>
|
|
175
|
</tr></table><?php
|
|
176
|
break;
|
|
177
|
// normal images
|
|
178
|
case 'ttf_image': // captcha with varying background and ttf-font
|
|
179
|
case 'old_image': // old captcha
|
|
180
|
?><table class="captcha_table" summary="captcha control"><tr>
|
|
181
|
<td class="image_captcha">
|
|
182
|
<?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&s=$sec_id"; ?>">
|
|
183
|
<img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&s=$sec_id"; ?>" alt="Captcha" />
|
|
184
|
</iframe>
|
|
185
|
</td>
|
|
186
|
<td></td>
|
|
187
|
<td><input type="text" name="captcha" maxlength="10" style="width:50px;" /></td>
|
|
188
|
<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT']; ?></td>
|
|
189
|
</tr></table><?php
|
|
190
|
break;
|
|
191
|
}
|
|
192
|
} elseif($action=='image') {
|
|
193
|
switch(CAPTCHA_TYPE) {
|
|
194
|
case 'text': // text-captcha
|
|
195
|
case 'calc_text': // calculation as text
|
|
196
|
echo ($style?"<span $style>":'');
|
|
197
|
include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
|
|
198
|
echo ($style?'</span>':'');
|
|
199
|
break;
|
|
200
|
case 'calc_image': // calculation with image (old captcha)
|
|
201
|
case 'calc_ttf_image': // calculation with varying background and ttf-font
|
|
202
|
case 'ttf_image': // captcha with varying background and ttf-font
|
|
203
|
case 'old_image': // old captcha
|
|
204
|
echo "<img $style src=\"".WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&s=$sec_id\" />";
|
|
205
|
break;
|
|
206
|
}
|
|
207
|
} elseif($action=='image_iframe') {
|
|
208
|
switch(CAPTCHA_TYPE) {
|
|
209
|
case 'text': // text-captcha
|
|
210
|
echo ($style?"<span $style>":'');
|
|
211
|
include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
|
|
212
|
echo ($style?'</span>':'');
|
|
213
|
break;
|
|
214
|
case 'calc_text': // calculation as text
|
|
215
|
include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
|
|
216
|
break;
|
|
217
|
case 'calc_image': // calculation with image (old captcha)
|
|
218
|
case 'calc_ttf_image': // calculation with varying background and ttf-font
|
|
219
|
case 'ttf_image': // captcha with varying background and ttf-font
|
|
220
|
case 'old_image': // old captcha
|
|
221
|
?>
|
|
222
|
<?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&s=$sec_id"; ?>">
|
|
223
|
<?php
|
|
224
|
echo "<img $style alt=\"Captcha\" src=\"".WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t\" />";
|
|
225
|
?></iframe><?php
|
|
226
|
break;
|
|
227
|
}
|
|
228
|
} elseif($action=='input') {
|
|
229
|
switch(CAPTCHA_TYPE) {
|
|
230
|
case 'text': // text-captcha
|
|
231
|
echo '<input type="text" name="captcha" '.($style?$style:'style="width:150px;" maxlength="50"').' />';
|
|
232
|
break;
|
|
233
|
case 'calc_text': // calculation as text
|
|
234
|
case 'calc_image': // calculation with image (old captcha)
|
|
235
|
case 'calc_ttf_image': // calculation with varying background and ttf-font
|
|
236
|
echo '<input type="text" name="captcha" '.($style?$style:'style="width:20px;" maxlength="10"').' />';
|
|
237
|
break;
|
|
238
|
case 'ttf_image': // captcha with varying background and ttf-font
|
|
239
|
case 'old_image': // old captcha
|
|
240
|
echo '<input type="text" name="captcha" '.($style?$style:'style="width:50px;" maxlength="10"').' />';
|
|
241
|
break;
|
|
242
|
}
|
|
243
|
} elseif($action=='text') {
|
|
244
|
echo ($style?"<span $style>":'');
|
|
245
|
switch(CAPTCHA_TYPE) {
|
|
246
|
case 'text': // text-captcha
|
|
247
|
echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST'];
|
|
248
|
break;
|
|
249
|
case 'calc_text': // calculation as text
|
|
250
|
case 'calc_image': // calculation with image (old captcha)
|
|
251
|
case 'calc_ttf_image': // calculation with varying background and ttf-font
|
|
252
|
echo $MOD_CAPTCHA['VERIFICATION_INFO_RES'];
|
|
253
|
break;
|
|
254
|
case 'ttf_image': // captcha with varying background and ttf-font
|
|
255
|
case 'old_image': // old captcha
|
|
256
|
echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT'];
|
|
257
|
break;
|
|
258
|
}
|
|
259
|
echo ($style?'</span>':'');
|
|
260
|
}
|
|
261
|
}
|
|
262
|
}
|
|
263
|
|
