| 1 |
<?php |
| 2 |
/** |
| 3 |
* Captcha utilities. |
| 4 |
* |
| 5 |
* Copyright: © 2009-2011 |
| 6 |
* {@link http://www.websharks-inc.com/ WebSharks, Inc.} |
| 7 |
* ( coded in the USA ) |
| 8 |
* |
| 9 |
* Released under the terms of the GNU General Public License. |
| 10 |
* You should have received a copy of the GNU General Public License, |
| 11 |
* along with this software. In the main directory, see: /licensing/ |
| 12 |
* If not, see: {@link http://www.gnu.org/licenses/}. |
| 13 |
* |
| 14 |
* @package s2Member\Utilities |
| 15 |
* @since 3.5 |
| 16 |
*/ |
| 17 |
if (realpath (__FILE__) === realpath ($_SERVER["SCRIPT_FILENAME"])) |
| 18 |
exit("Do not access this file directly."); |
| 19 |
/**/ |
| 20 |
if (!class_exists ("c_ws_plugin__s2member_utils_captchas")) |
| 21 |
{ |
| 22 |
/** |
| 23 |
* Captcha utilities. |
| 24 |
* |
| 25 |
* @package s2Member\Utilities |
| 26 |
* @since 3.5 |
| 27 |
*/ |
| 28 |
class c_ws_plugin__s2member_utils_captchas |
| 29 |
{ |
| 30 |
/** |
| 31 |
* Verifies a reCaptcha code though a connection to Google®. |
| 32 |
* |
| 33 |
* @package s2Member\Utilities |
| 34 |
* @since 3.5 |
| 35 |
* |
| 36 |
* @param str $challenge The value of `recaptcha_challenge_field` during form submisson. |
| 37 |
* @param str $response The value of `recaptcha_response_field` during form submission. |
| 38 |
* @return bool True if ``$response`` is valid, else false. |
| 39 |
*/ |
| 40 |
public static function recaptcha_code_validates ($challenge = FALSE, $response = FALSE) |
| 41 |
{ |
| 42 |
$post_vars = array ("privatekey" => $GLOBALS["WS_PLUGIN__"]["s2member"]["c"]["recaptcha"]["private_key"], "remoteip" => $_SERVER["REMOTE_ADDR"], "challenge" => $challenge, "response" => $response); |
| 43 |
/**/ |
| 44 |
return preg_match ("/^true/i", trim (c_ws_plugin__s2member_utils_urls::remote ("http://www.google.com/recaptcha/api/verify", $post_vars))); |
| 45 |
} |
| 46 |
/** |
| 47 |
* Builds a reCaptcha JavaScript `script` tag for display. |
| 48 |
* |
| 49 |
* @package s2Member\Utilities |
| 50 |
* @since 3.5 |
| 51 |
* |
| 52 |
* @param str $theme Optional. The theme used in display. Defaults to `clean`. |
| 53 |
* @param str $tabindex Optional. Value of `tabindex=""` attribute. Defaults to `-1`. |
| 54 |
* @param str $error Optional. An error message to display. |
| 55 |
* @return str HTML markup for JavaScript tag. |
| 56 |
*/ |
| 57 |
public static function recaptcha_script_tag ($theme = FALSE, $tabindex = FALSE, $error = FALSE) |
| 58 |
{ |
| 59 |
$theme = ($theme) ? $theme : "clean"; /* Defaults to the `clean` theme style. */ |
| 60 |
$tabindex = (strlen ($tabindex)) ? (int)$tabindex : -1; /* -1 default. */ |
| 61 |
/**/ |
| 62 |
$options = '<script type="text/javascript">' . "if(typeof RecaptchaOptions !== 'object'){ var RecaptchaOptions = {theme: '" . c_ws_plugin__s2member_utils_strings::esc_sq ($theme) . "', lang: '" . c_ws_plugin__s2member_utils_strings::esc_sq ($GLOBALS["WS_PLUGIN__"]["s2member"]["c"]["recaptcha"]["lang"]) . "', tabindex: " . $tabindex . " }; }" . '</script>' . "\n"; |
| 63 |
$adjustments = '<script type="text/javascript">' . "if(typeof jQuery === 'function'){ jQuery('td a[id^=\"recaptcha\"]').removeAttr('tabindex'); }" . '</script>'; |
| 64 |
/**/ |
| 65 |
return $options . '<script type="text/javascript" src="' . esc_attr ('https://www.google.com/recaptcha/api/challenge?k=' . urlencode ($GLOBALS["WS_PLUGIN__"]["s2member"]["c"]["recaptcha"]["public_key"])) . '' . (($error) ? '&error=' . urlencode ($error) : '') . '"></script>' . $adjustments; |
| 66 |
} |
| 67 |
} |
| 68 |
} |
| 69 |
?> |
