Project

General

Profile

1 2 Manuela
<?php
2
/**
3
 *
4
 * @category        captcha
5
 * @package         include
6
 * @subpackage
7
 * @author          Ryan Djurovich,WebsiteBaker Project
8
 * @copyright       WebsiteBaker Org. e.V.
9
 * @link            http://websitebaker.org/
10
 * @license         http://www.gnu.org/licenses/gpl.html
11
 * @platform        WebsiteBaker 2.8.3
12
 * @requirements    PHP 5.3.6 and higher
13
 * @version         $Id$
14
 * @filesource      $HeadURL$
15
 * @lastmodified    $Date$
16
 *
17
 */
18
19
// displays the image or text inside an <iframe>
20
if(!function_exists('display_captcha_real')) {
21
    function display_captcha_real($kind='image') {
22
        $t = time();
23
/*
24
        $output  = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" ";
25
        $output .= "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
26
        $output .= "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"";
27
        $output .= strtolower(LANGUAGE)."\" lang=\"".strtolower(LANGUAGE)."\">\n";
28
        $output .= "\t<head>\n\t\t<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>\n";
29
        $output .= "\t\t<title>captcha</title>\n\t</head>\n\t<body style=\"margin: 0.925em auto;\">\n";
30
*/
31
        $output  = '
32
<!DOCTYPE HTML>
33
<html lang="en">
34
<head>
35
<meta charset="utf-8">
36
<title>captcha</title>
37
</head>
38
<body style="margin: 0.925em auto;">
39
';
40
41
        $_SESSION['captcha_time'] = $t;
42
        if($kind=='image') {
43
            $output .= "\t\t<a title=\"reload\" href=\"".WB_URL."/include/captcha/captcha.php?display_captcha_X986E21=2\">";
44
            $output .= "<img style=\"border: none;\" src=\"".WB_URL."/include/captcha/captchas/";
45
            $output .= CAPTCHA_TYPE.".php?t=".$t."\" alt=\"Captcha\" /></a>\n";
46
        } else {
47
        $output .= '
48
<h2>error</h2>
49
';
50
        }
51
        $output .= '
52
</body>
53
</html>
54
';
55
        echo $output;
56
    }
57
}
58
59
// called from an <iframe>
60
if(isset($_GET['display_captcha_X986E21'])) {
61
    require('../../config.php');
62
    switch(CAPTCHA_TYPE) {
63
    case 'calc_image':
64
    case 'calc_ttf_image':
65
    case 'ttf_image':
66
    case 'old_image':
67
        display_captcha_real('image');
68
        break;
69
    }
70
    exit(0);
71
}
72
73
74
// Make sure page cannot be accessed directly
75
if(!defined('WB_PATH')) { exit("Cannot access this file directly"); }
76
77
// check if module language file exists for the language set by the user (e.g. DE, EN)
78
global $MOD_CAPTCHA;
79
if(!file_exists(WB_PATH.'/modules/captcha_control/languages/'.LANGUAGE .'.php')) {
80
    // no module language file exists for the language set by the user, include default module language file EN.php
81
    require_once(WB_PATH.'/modules/captcha_control/languages/EN.php');
82
} else {
83
    // a module language file exists for the language defined by the user, load it
84
    require_once(WB_PATH.'/modules/captcha_control/languages/'.LANGUAGE .'.php');
85
}
86
87
// output-handler for image-captchas to determine size of image
88
if(!function_exists('captcha_header')) {
89
    function captcha_header() {
90
        header("Expires: Mon, 1 Jan 1990 05:00:00 GMT");
91
        header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
92
        header("Cache-Control: no-store, no-cache, must-revalidate, proxy-revalidate");
93
        header("Pragma: no-cache");
94
        header("Content-type: image/png");
95
        return;
96
    }
97
}
98
99
// get list of available CAPTCHAS for the dropdown-listbox in admin-tools
100
if(extension_loaded('gd') && function_exists('imagepng') && function_exists('imagettftext')) {
101
    $useable_captchas = array(
102
        'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
103
        'calc_image'=>$MOD_CAPTCHA_CONTROL['CALC_IMAGE'],
104
        'calc_ttf_image'=>$MOD_CAPTCHA_CONTROL['CALC_TTF_IMAGE'],
105
        'ttf_image'=>$MOD_CAPTCHA_CONTROL['TTF_IMAGE'],
106
        'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],
107
        'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
108
    );
109
} elseif(extension_loaded('gd') && function_exists('imagepng')) {
110
    $useable_captchas = array(
111
        'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
112
        'calc_image'=>$MOD_CAPTCHA_CONTROL['CALC_IMAGE'],
113
        'old_image'=>$MOD_CAPTCHA_CONTROL['OLD_IMAGE'],
114
        'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
115
    );
116
} else {
117
    $useable_captchas = array(
118
        'calc_text'=>$MOD_CAPTCHA_CONTROL['CALC_TEXT'],
119
        'text'=>$MOD_CAPTCHA_CONTROL['TEXT']
120
    );
121
}
122
123
if(!function_exists('call_captcha')) {
124
    function call_captcha($action='all', $style='', $sec_id='') {
125
        global $MOD_CAPTCHA, $section_id;
126
        $t = time();
127
        $_SESSION['captcha_time'] = $t;
128
129
        // get width and height of captcha image for use in <iframe>
130
        switch(CAPTCHA_TYPE) {
131
        case 'calc_image':
132
            $captcha_width = 185;
133
            $captcha_height = 70;
134
            break;
135
        case 'calc_ttf_image':
136
            $captcha_width = 185;
137
            $captcha_height = 80;
138
            break;
139
        case 'ttf_image':
140
            $captcha_width = 185;
141
            $captcha_height = 80;
142
            break;
143
        case 'old_image':
144
            $captcha_width = 185;
145
            $captcha_height = 70;
146
            break;
147
        default:
148
            $captcha_width = 250;
149
            $captcha_height = 100;
150
        }
151
        if($action=='all') {
152
            switch(CAPTCHA_TYPE) {
153
              case 'text': // text-captcha
154
                    ?><div class="captcha_table" style="width: 100%; margin-top: 0.125em;" >
155
                      <div class="text_captcha" ><?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?></div>
156
                      <div style="width:50%"><input type="text" name="captcha" maxlength="50"  /></div>
157
                      <div class="captcha_expl" ><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST']; ?></div>
158
                    </div><?php
159
                    break;
160
                case 'calc_text': // calculation as text
161
                    ?><div class="captcha_table" style="width:100%; margin-top: 0.125em;">
162
                    <div class="text_captcha" >
163
                        <?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>
164
                    </div>
165
                    <div style="width:50%;"><input type="text" name="captcha" maxlength="10" /></div>
166
                    <div class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></div>
167
                    </div><?php
168
                    break;
169
                case 'calc_image': // calculation with image (old captcha)
170
                case 'calc_ttf_image': // calculation with varying background and ttf-font
171
                  $sIframeUrl = WB_URL . '/include/captcha/captcha.php?display_captcha_X986E21=1&amp;s='.$sec_id;
172
                  ?><div class="captcha_table" style="width: 100%; margin-top: 0.125em; ">
173
                    <div class="image_captcha" style="width: 50%; max-width: <?php echo $captcha_width+20;?>px; ">
174
                        <iframe width="<?php echo $captcha_width; ?>" height="<?php echo $captcha_height;?>" name="captcha_iframe_<?php echo $sec_id;?>" src="<?php echo $sIframeUrl;?>">
175
                        </iframe>
176
                    </div>
177
                    <div style="width: 50%;"><input type="text" name="captcha" maxlength="10" />
178
                    <label class="captcha_expl" style="display: block;"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></label></div>
179
                   </div><?php
180
                    break;
181
                // normal images
182
                case 'ttf_image': // captcha with varying background and ttf-font
183
                case 'old_image': // old captcha
184
                  $sIframeUrl = WB_URL . '/include/captcha/captcha.php?display_captcha_X986E21=1&amp;s='.$sec_id;
185
                  ?><div class="captcha_table" style="width: 100%; margin-top: 0.125em;">
186
                    <div class="image_captcha" style="width: 50%; max-width: <?php echo $captcha_width+20;?>px; ">
187
                        <iframe width="<?php echo $captcha_width; ?>" height="<?php echo $captcha_height;?>" name="captcha_iframe_<?php echo $sec_id;?>" src="<?php echo $sIframeUrl;?>">
188
                        </iframe>
189
                    </div>
190
                    <div style="width: 50%;"><input type="text" name="captcha" maxlength="10" />
191
                    <label class="captcha_expl" style="display: block;"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT']; ?></label></div>
192
                   </div><?php
193
                    break;
194
            }
195
        } elseif($action=='image') {
196
            switch(CAPTCHA_TYPE) {
197
                case 'text': // text-captcha
198
                case 'calc_text': // calculation as text
199
                    echo ($style?"<span $style>":'');
200
                    include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
201
                    echo ($style?'</span>':'');
202
                    break;
203
                case 'calc_image': // calculation with image (old captcha)
204
                case 'calc_ttf_image': // calculation with varying background and ttf-font
205
                case 'ttf_image': // captcha with varying background and ttf-font
206
                case 'old_image': // old captcha
207
                    echo "<img $style src=\"".WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&amp;s=$sec_id\" />";
208
                    break;
209
            }
210
        } elseif($action=='image_iframe') {
211
            switch(CAPTCHA_TYPE) {
212
                case 'text': // text-captcha
213
                    echo ($style?"<span $style>":'');
214
                    include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
215
                    echo ($style?'</span>':'');
216
                    break;
217
                case 'calc_text': // calculation as text
218
                    include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');
219
                    break;
220
                case 'calc_image': // calculation with image (old captcha)
221
                case 'calc_ttf_image': // calculation with varying background and ttf-font
222
                case 'ttf_image': // captcha with varying background and ttf-font
223
                case 'old_image': // old captcha
224
                    ?>
225
                    <?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&amp;s=$sec_id"; ?>">
226
                    <?php
227
                    echo "<img $style alt=\"Captcha\" src=\"".WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t\" />";
228
                    ?></iframe><?php
229
                    break;
230
            }
231
        } elseif($action=='input') {
232
            switch(CAPTCHA_TYPE) {
233
                case 'text': // text-captcha
234
                    echo '<input type="text" name="captcha" '.($style?$style:'style="width:150px;" maxlength="50"').' />';
235
                    break;
236
                case 'calc_text': // calculation as text
237
                case 'calc_image': // calculation with image (old captcha)
238
                case 'calc_ttf_image': // calculation with varying background and ttf-font
239
                    echo '<input type="text" name="captcha" '.($style?$style:'style="width:20px;" maxlength="10"').' />';
240
                    break;
241
                case 'ttf_image': // captcha with varying background and ttf-font
242
                case 'old_image': // old captcha
243
                    echo '<input type="text" name="captcha" '.($style?$style:'style="width:50px;" maxlength="10"').' />';
244
                    break;
245
            }
246
        } elseif($action=='text') {
247
            echo ($style?"<span $style>":'');
248
            switch(CAPTCHA_TYPE) {
249
                case 'text': // text-captcha
250
                    echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST'];
251
                    break;
252
                case 'calc_text': // calculation as text
253
                case 'calc_image': // calculation with image (old captcha)
254
                case 'calc_ttf_image': // calculation with varying background and ttf-font
255
                    echo $MOD_CAPTCHA['VERIFICATION_INFO_RES'];
256
                    break;
257
                case 'ttf_image': // captcha with varying background and ttf-font
258
                case 'old_image': // old captcha
259
                    echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT'];
260
                    break;
261
            }
262
            echo ($style?'</span>':'');
263
        }
264
    }
265
}