/**
* Get the signup required settings and profile fields.
*
* @return array settings and possible warnings
* @since Moodle 3.2
* @throws moodle_exception
*/
public static function get_signup_settings()
{
global $CFG, $PAGE;
$context = context_system::instance();
// We need this to make work the format text functions.
$PAGE->set_context($context);
self::check_signup_enabled();
$result = array();
$result['namefields'] = useredit_get_required_name_fields();
if (!empty($CFG->passwordpolicy)) {
$result['passwordpolicy'] = print_password_policy();
}
if (!empty($CFG->sitepolicy)) {
$result['sitepolicy'] = $CFG->sitepolicy;
}
if (!empty($CFG->defaultcity)) {
$result['defaultcity'] = $CFG->defaultcity;
}
if (!empty($CFG->country)) {
$result['country'] = $CFG->country;
}
if ($fields = profile_get_signup_fields()) {
$result['profilefields'] = array();
foreach ($fields as $field) {
$fielddata = $field->object->get_field_config_for_external();
$fielddata['categoryname'] = external_format_string($field->categoryname, $context->id);
$fielddata['name'] = external_format_string($fielddata['name'], $context->id);
list($fielddata['defaultdata'], $fielddata['defaultdataformat']) = external_format_text($fielddata['defaultdata'], $fielddata['defaultdataformat'], $context->id);
$result['profilefields'][] = $fielddata;
}
}
if (signup_captcha_enabled()) {
require_once $CFG->libdir . '/recaptchalib.php';
// We return the public key, maybe we want to use the javascript api to get the image.
$result['recaptchapublickey'] = $CFG->recaptchapublickey;
list($result['recaptchachallengehash'], $result['recaptchachallengeimage'], $result['recaptchachallengejs']) = recaptcha_get_challenge_hash_and_urls(RECAPTCHA_API_SECURE_SERVER, $CFG->recaptchapublickey);
}
$result['warnings'] = array();
return $result;
}
/**
* Gets the challenge HTML (javascript and non-javascript version).
* This is called from the browser, and the resulting reCAPTCHA HTML widget
* is embedded within the HTML form it was called from.
*
* @global object
* @param string $pubkey A public key for reCAPTCHA
* @param string $error The error given by reCAPTCHA (optional, default is null)
* @param boolean $use_ssl Should the request be made over ssl? (optional, default is false)
* @return string - The HTML to be embedded in the user's form.
*/
function recaptcha_get_html($pubkey, $error = null, $use_ssl = false)
{
global $PAGE;
$recaptchatype = optional_param('recaptcha', 'image', PARAM_TEXT);
if ($pubkey == null || $pubkey == '') {
die("To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>");
}
if ($use_ssl) {
$server = RECAPTCHA_API_SECURE_SERVER;
} else {
$server = RECAPTCHA_API_SERVER;
}
$errorpart = "";
if ($error) {
$errorpart = "&error=" . $error;
}
list($challengehash, $imageurl, $jsurl) = recaptcha_get_challenge_hash_and_urls($server, $pubkey, $errorpart);
$strincorrectpleasetryagain = get_string('incorrectpleasetryagain', 'auth');
$strenterthewordsabove = get_string('enterthewordsabove', 'auth');
$strenterthenumbersyouhear = get_string('enterthenumbersyouhear', 'auth');
$strgetanothercaptcha = get_string('getanothercaptcha', 'auth');
$strgetanaudiocaptcha = get_string('getanaudiocaptcha', 'auth');
$strgetanimagecaptcha = get_string('getanimagecaptcha', 'auth');
$return = html_writer::script('', $jsurl);
$return .= '<noscript>
<div id="recaptcha_widget_noscript">
<div id="recaptcha_image_noscript"><img src="' . $imageurl . '" alt="reCAPTCHA"/></div>';
if ($error == 'incorrect-captcha-sol') {
$return .= '<div class="recaptcha_only_if_incorrect_sol" style="color:red">' . $strincorrectpleasetryagain . '</div>';
}
if ($recaptchatype == 'image') {
$return .= '<span class="recaptcha_only_if_image">' . $strenterthewordsabove . '</span>';
} elseif ($recaptchatype == 'audio') {
$return .= '<span class="recaptcha_only_if_audio">' . $strenterthenumbersyouhear . '</span>';
}
$return .= '<input type="text" id="recaptcha_response_field_noscript" name="recaptcha_response_field" />';
$return .= '<input type="hidden" id="recaptcha_challenge_field_noscript" name="recaptcha_challenge_field" value="' . $challengehash . '" />';
$return .= '<div><a href="signup.php">' . $strgetanothercaptcha . '</a></div>';
// Disabling audio recaptchas for now: not language-independent
/*
if ($recaptchatype == 'image') {
$return .= '<div class="recaptcha_only_if_image"><a href="signup.php?recaptcha=audio">' . $strgetanaudiocaptcha . '</a></div>';
} elseif ($recaptchatype == 'audio') {
$return .= '<div class="recaptcha_only_if_audio"><a href="signup.php?recaptcha=image">' . $strgetanimagecaptcha . '</a></div>';
}
*/
$return .= '
</div>
</noscript>';
return $return;
}
