/**
* Validate email based on user settings.
*
* First, verify email using `is_email()` WordPress function (required)
*
* Then, process email validation based on settings.
*
* @param KWSContact $Contact Contact object
*
* @return WP_Error|boolean|void If valid, return `true`, otherwise return a WP_Error object.
*/
function validateEmail(KWSContact &$Contact)
{
if (!class_exists('DataValidation')) {
include_once CTCT_DIR_PATH . 'lib/class.datavalidation.php';
}
if (!class_exists('SMTP_validateEmail')) {
include_once CTCT_DIR_PATH . 'lib/mail/smtp_validateEmail.class.php';
}
$email = $Contact->get('email');
$is_valid = array();
// 1: Check if it's an email at all
if (empty($email)) {
do_action('ctct_activity', 'Empty email address', $email);
$this->errors[] = new WP_Error('empty_email', __('Please enter your email address.', 'ctct'), 'email_address');
return;
} elseif (!is_email($email)) {
do_action('ctct_activity', 'Invalid email address', $email);
$this->errors[] = new WP_Error('not_email', __('Invalid email address.', 'ctct'), 'email_address');
return;
}
$methods = (array) CTCT_Settings::get('spam_methods');
// 2: Akismet validation
if (in_array('akismet', $methods)) {
$akismetCheck = $this->akismetCheck($Contact);
if (is_wp_error($akismetCheck)) {
$this->errors[] = $akismetCheck;
return;
}
}
// 3: WangGuard validation
if (in_array('wangguard', $methods) && function_exists('wangguard_verify_email') && wangguard_server_connectivity_ok()) {
global $wangguard_api_host;
// If WangGuard isn't set up yet, set'er up!
if (empty($wangguard_api_host)) {
wangguard_init();
}
$return = wangguard_verify_email($email, wangguard_getRemoteIP(), wangguard_getRemoteProxyIP());
if ($return == 'checked' || $return == 'not-checked') {
do_action('ctct_activity', 'WangGuard validation passed.', $email, $return);
} else {
$this->errors[] = new WP_Error('wangguard', __('Email validation failed.', 'ctct'), $email, $return);
return;
}
}
// 4: DataValidation.com validation
if (in_array('datavalidation', $methods) && class_exists('DataValidation')) {
$Validate = new DataValidation(CTCT_Settings::get('datavalidation_api_key'));
$validation = $Validate->validate($email);
$process_inconclusive = apply_filters('ctct_process_inconclusive_emails', true);
if (is_wp_error($validation)) {
do_action('ctct_activity', 'DataValidation.com error', 'The email was not processed because of the error: ' . $validation->get_error_message());
return;
} elseif ($validation === false || $validation === NULL && !$process_inconclusive) {
do_action('ctct_activity', 'DataValidation validation failed.', $email, $Validate);
$message = isset($Validate->message) ? $Validate->message : __('Not a valid email.', 'ctct');
$this->errors[] = new WP_Error('datavalidation', $message, $email, $Validate);
return;
}
if ($validation === NULL) {
do_action('ctct_activity', 'DataValidation validation inconclusive.', $email, $Validate);
} elseif ($validation === true) {
do_action('ctct_activity', 'DataValidation validation passed.', $email, $Validate);
}
}
// 5: SMTP validation
if (in_array('smtp', $methods) && class_exists('SMTP_validateEmail')) {
try {
$SMTP_Validator = new SMTP_validateEmail();
// Timeout after 1 second
$SMTP_Validator->max_conn_time = 1;
$SMTP_Validator->max_read_time = 1;
$SMTP_Validator->debug = 0;
// Prevent PHP notices about timeouts
ob_start();
$results = $SMTP_Validator->validate(array($email), get_option('admin_email'));
ob_clean();
if (isset($results[$email])) {
// True = passed
if ($results[$email]) {
do_action('ctct_activity', 'SMTP validation passed.', $email, $results);
return true;
} else {
do_action('ctct_activity', 'SMTP validation failed.', $email, $results);
$this->errors[] = new WP_Error('smtp', __('Email validation failed.', 'ctct'), $email, $results);
return false;
}
} else {
do_action('ctct_activity', 'SMTP validation did not work', 'Returned empty results. Maybe it timed out?');
return true;
}
} catch (Exception $e) {
do_action('ctct_error', 'SMTP validation broke.', $e);
return;
}
}
return true;
}
function wangguard_admin_warnings()
{
global $wangguard_api_key, $wangguard_is_network_admin;
if (!$wangguard_api_key && !isset($_POST['submit'])) {
function wangguard_warning()
{
global $wangguard_is_network_admin;
$urlFunc = "admin_url";
if ($wangguard_is_network_admin && function_exists("network_admin_url")) {
$urlFunc = "network_admin_url";
}
$confURL = $urlFunc("admin.php?page=wangguard_conf");
echo "\n\t\t\t<div id='wangguard-warning' class='updated fade'><p><strong>" . __('WangGuard is almost ready.', 'wangguard') . "</strong> " . sprintf(__('You must <a href="%1$s">enter your WangGuard API key</a> for it to work.', 'wangguard'), $confURL) . "</p></div>";
}
add_action('admin_notices', 'wangguard_warning');
return;
} elseif (get_site_option('wangguard_connectivity_time') && empty($_POST) && is_admin() && !wangguard_server_connectivity_ok()) {
function wangguard_warning()
{
global $wangguard_is_network_admin;
$urlFunc = "admin_url";
if ($wangguard_is_network_admin && function_exists("network_admin_url")) {
$urlFunc = "network_admin_url";
}
$confURL = $urlFunc("admin.php?page=wangguard_conf");
echo "\n\t\t\t<div id='wangguard-warning' class='updated fade'><p><strong>" . __('WangGuard has detected a problem.', 'wangguard') . "</strong> " . sprintf(__('A server or network problem is preventing WangGuard from working correctly. <a href="%1$s">Click here for more information</a> about how to fix the problem.', 'wangguard'), $confURL) . "</p></div>\n\t\t\t";
}
add_action('admin_notices', 'wangguard_warning');
return;
}
}
