Your IP : 216.73.216.95
<?php
defined('ABSPATH') || exit;
class NewsletterUnsubscription extends NewsletterModule {
static $instance;
/**
* @return NewsletterUnsubscription
*/
static function instance() {
if (self::$instance == null) {
self::$instance = new self();
}
return self::$instance;
}
function __construct() {
parent::__construct('unsubscription');
add_filter('newsletter_replace', [$this, 'hook_newsletter_replace'], 10, 4);
add_filter('newsletter_page_text', [$this, 'hook_newsletter_page_text'], 10, 3);
add_filter('newsletter_message_headers', [$this, 'hook_add_unsubscribe_headers_to_email'], 10, 3);
add_action('newsletter_action', [$this, 'hook_newsletter_action'], 11, 3);
}
function hook_newsletter_action($action, $user, $email) {
if (isset($_SERVER['HTTP_USER_AGENT'])) {
$agent = strtolower($_SERVER['HTTP_USER_AGENT']);
if (strpos($agent, 'yahoomailproxy') !== false) {
return;
}
if (strpos($agent, 'googlebot') !== false) {
return;
}
if (strpos($agent, 'yandexbot') !== false) {
return;
}
if (strpos($agent, 'bingbot') !== false) {
return;
}
if (strpos($agent, 'bingpreview') !== false) {
return;
}
if (strpos($agent, 'microsoftpreview') !== false) {
return;
}
}
if (in_array($action, ['u', 'uc', 'lu', 'reactivate'])) {
if (!$user) {
$this->dienow(__('Subscriber not found', 'newsletter'), 'Already deleted or using the wrong subscriber key in the URL', 404);
}
}
// if ($action === 'u' && empty($this->options['optout'])) {
// $action = 'uc';
// }
switch ($action) {
case 'u':
$url = $this->build_message_url(null, 'unsubscribe', $user, $email);
wp_redirect($url);
die();
break;
case 'lu': //Left for backwards compatibility, could be removed after some time
case 'uc':
if (isset($_POST['List-Unsubscribe']) && 'One-Click' === $_POST['List-Unsubscribe']) {
$this->unsubscribe($user, $email);
} else if ($this->antibot_form_check()) {
$this->unsubscribe($user, $email);
$url = $this->build_message_url(null, 'unsubscribed', $user, $email);
wp_redirect($url);
} else {
$this->request_to_antibot_form('Unsubscribe');
}
die();
break;
case 'reactivate':
if ($this->antibot_form_check()) {
$this->reactivate($user);
$url = $this->build_message_url(null, 'reactivated', $user);
setcookie('newsletter', $user->id . '-' . $user->token, time() + 60 * 60 * 24 * 365, '/');
wp_redirect($url);
} else {
$this->request_to_antibot_form('Reactivate');
}
die();
break;
}
}
/**
* Unsubscribes the subscriber from the request. Die on subscriber extraction failure.
*
* @return TNP_User
*/
function unsubscribe($user, $email = null) {
global $wpdb;
if ($user->status === TNP_User::STATUS_UNSUBSCRIBED) {
return $user;
}
$this->refresh_user_token($user);
$this->set_user_status($user, TNP_User::STATUS_UNSUBSCRIBED);
$this->add_user_log($user, 'unsubscribe');
do_action('newsletter_user_unsubscribed', $user);
if ($email) {
$wpdb->update(NEWSLETTER_USERS_TABLE, array('unsub_email_id' => (int) $email->id, 'unsub_time' => time()), array('id' => $user->id));
}
$this->send_unsubscribed_email($user);
$this->notify_admin($user);
return $user;
}
function send_unsubscribed_email($user, $force = false) {
if (!$force && !empty($this->get_option('unsubscribed_disabled'))) {
return true;
}
$message = do_shortcode($this->get_text('unsubscribed_message'));
$subject = $this->get_text('unsubscribed_subject');
return NewsletterSubscription::instance()->mail($user, $subject, $message);
}
function notify_admin($user) {
if (empty($this->get_option('notify'))) {
return;
}
$message = $this->generate_admin_notification_message($user);
$email = trim($this->get_option('notify_email'));
$subject = $this->generate_admin_notification_subject('New cancellation');
Newsletter::instance()->mail($email, $subject, ['html' => $message]);
}
/**
* Reactivate the subscriber extracted from the request setting his status
* to confirmed and logging. No email are sent. Dies on subscriber extraction failure.
*
* @return TNP_User
*/
function reactivate($user = null) {
// For compatibility, to be removed
if (!$user) {
$user = $this->get_user_from_request(true);
}
$this->set_user_status($user, TNP_User::STATUS_CONFIRMED);
$this->add_user_log($user, 'reactivate');
do_action('newsletter_user_reactivated', $user);
}
function hook_newsletter_replace($text, $user, $email, $html = true) {
if ($user) {
$text = $this->replace_url($text, 'unsubscription_confirm_url', $this->build_action_url('uc', $user, $email));
$text = $this->replace_url($text, 'unsubscription_url', $this->build_action_url('u', $user, $email));
$text = $this->replace_url($text, 'reactivate_url', $this->build_action_url('reactivate', $user, $email));
} else {
$text = $this->replace_url($text, 'unsubscription_confirm_url', $this->build_action_url('nul'));
$text = $this->replace_url($text, 'unsubscription_url', $this->build_action_url('nul'));
}
return $text;
}
/**
* Language and locale are already defined in this hook.
*
* @param type $text
* @param type $key
* @param type $user
* @return type
*/
function hook_newsletter_page_text($text, $key, $user = null) {
// For tests
if ($key === 'unsubscription_error') {
return $this->get_text('error_text');
}
if ($key == 'unsubscribe') {
if (!$user) {
return $this->get_text('error_text');
}
return $this->get_text('unsubscribe_text');
}
if ($key == 'unsubscribed') {
if (!$user) {
return $this->get_text('error_text');
}
return $this->get_text('unsubscribed_text');
}
if ($key == 'reactivated') {
if (!$user) {
return $this->get_text('error_text');
}
return $this->get_text('reactivated_text');
}
return $text;
}
/**
* @param array $headers
* @param TNP_Email $email
* @param TNP_User $user
*
* @return array
*/
function hook_add_unsubscribe_headers_to_email($headers, $email, $user) {
if (!empty($this->get_option('disable_unsubscribe_headers'))) {
return $headers;
}
$list_unsubscribe_values = [];
if (!empty($this->get_option('list_unsubscribe_mailto_header'))) {
$unsubscribe_address = $this->get_option('list_unsubscribe_mailto_header');
$list_unsubscribe_values[] = "<mailto:$unsubscribe_address?subject=unsubscribe>";
}
$unsubscribe_action_url = $this->build_action_url('uc', $user, $email);
$list_unsubscribe_values[] = "<$unsubscribe_action_url>";
$headers['List-Unsubscribe'] = implode(', ', $list_unsubscribe_values);
$headers['List-Unsubscribe-Post'] = 'List-Unsubscribe=One-Click';
return $headers;
}
}
NewsletterUnsubscription::instance();