1 | <?php |
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2 | |
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3 | if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!'); |
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4 | |
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5 | include(CAPTCHA_PATH.'recaptchalib.php'); |
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6 | add_event_handler('display_contactform', 'add_captcha'); |
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7 | add_event_handler('check_contactform_params', 'check_captcha'); |
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8 | |
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9 | function add_captcha() |
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10 | { |
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11 | global $template, $conf; |
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12 | |
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13 | if (!is_a_guest()) return; |
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14 | |
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15 | $template->set_prefilter('cf_form', 'captcha_prefilter'); |
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16 | $template->set_filename('captcha', realpath(CAPTCHA_PATH.'captcha.tpl')); |
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17 | $template->assign(array( |
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18 | 'CAPTCHA_HTML' => recaptcha_get_html($conf['captcha_publickey'], get_plugin_data('captcha')), |
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19 | 'CAPTCHA_THEME' => $conf['captcha_theme'], |
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20 | ) |
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21 | ); |
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22 | $template->assign_var_from_handle('CAPTCHA', 'captcha'); |
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23 | } |
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24 | |
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25 | function captcha_prefilter($content, $smarty) |
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26 | { |
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27 | $search = ' |
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28 | <tr> |
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29 | <td class="contact-form-left"> </td> |
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30 | <td class="contact-form-right"><input class="submit" type="submit" value="{\'cf_submit\'|@translate}"></td> |
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31 | </tr>'; |
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32 | return str_replace($search, '<tr><td></td><td class="contact-form-right">{$CAPTCHA}</td></tr>'."\n".$search, $content); |
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33 | } |
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34 | |
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35 | function check_captcha($infos) |
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36 | { |
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37 | global $conf; |
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38 | |
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39 | if (!is_a_guest()) return $infos; |
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40 | |
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41 | $resp = recaptcha_check_answer( |
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42 | $conf['captcha_privatekey'], |
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43 | $_SERVER["REMOTE_ADDR"], |
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44 | $_POST["recaptcha_challenge_field"], |
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45 | $_POST["recaptcha_response_field"] |
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46 | ); |
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47 | |
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48 | if (!$resp->is_valid) |
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49 | { |
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50 | load_language('plugin.lang', CAPTCHA_PATH); |
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51 | array_push($infos['errors'], l10n('Invalid Captcha')); |
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52 | set_plugin_data('captcha', $resp->error); |
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53 | } |
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54 | |
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55 | return $infos; |
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56 | } |
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57 | |
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58 | ?> |
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