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<?php
class SwpmAuth {
public $protected; public $permitted; private $isLoggedIn; private $lastStatusMsg; private static $_this; public $userData;
private function __construct() { //check if we need to display custom message on the login form $custom_msg = filter_input(INPUT_COOKIE, 'swpm-login-form-custom-msg', FILTER_SANITIZE_STRING); if (!empty($custom_msg)) { $this->lastStatusMsg = $custom_msg; //let's 'unset' the cookie setcookie('swpm-login-form-custom-msg', '', time() - 3600, COOKIEPATH, COOKIE_DOMAIN); } $this->isLoggedIn = false; $this->userData = null; $this->protected = SwpmProtection::get_instance(); }
private function init() { $valid = $this->validate(); //SwpmLog::log_auth_debug("init:". ($valid? "valid": "invalid"), true); if (!$valid) { $this->authenticate(); } }
public static function get_instance() { if (empty(self::$_this)) { self::$_this = new SwpmAuth(); self::$_this->init(); } return self::$_this; }
private function authenticate($user = null, $pass = null) { global $wpdb; $swpm_password = empty($pass) ? filter_input(INPUT_POST, 'swpm_password') : $pass; $swpm_user_name = empty($user) ? apply_filters('swpm_user_name', filter_input(INPUT_POST, 'swpm_user_name')) : $user;
if (!empty($swpm_user_name) && !empty($swpm_password)) { //SWPM member login request. //Trigger action hook that can be used to check stuff before the login request is processed by the plugin. $args = array('username' => $swpm_user_name, 'password' => $swpm_password); do_action('swpm_before_login_request_is_processed', $args);
//First, lets make sure this user is not already logged into the site as an "Admin" user. We don't want to override that admin login session. if (current_user_can('administrator')) { //This user is logged in as ADMIN then trying to do another login as a member. Stop the login request processing (we don't want to override your admin login session). $wp_profile_page = SIMPLE_WP_MEMBERSHIP_SITE_HOME_URL . '/wp-admin/profile.php'; $error_msg = ''; $error_msg .= '<p>' . SwpmUtils::_('Warning! Simple Membership plugin cannot process this login request to prevent you from getting logged out of WP Admin accidentally.') . '</p>'; $error_msg .= '<p><a href="' . $wp_profile_page . '" target="_blank">' . SwpmUtils::_('Click here') . '</a>' . SwpmUtils::_(' to see the profile you are currently logged into in this browser.') . '</p>'; $error_msg .= '<p>' . SwpmUtils::_('You are logged into the site as an ADMIN user in this browser. First, logout from WP Admin then you will be able to log in as a normal member.') . '</p>'; $error_msg .= '<p>' . SwpmUtils::_('Alternatively, you can use a different browser (where you are not logged-in as ADMIN) to test the membership login.') . '</p>'; $error_msg .= '<p>' . SwpmUtils::_('Your normal visitors or members will never see this message. This message is ONLY for ADMIN user.') . '</p>'; wp_die($error_msg); }
//If captcha is present and validation failed, it returns an error string. If validation succeeds, it returns an empty string. $captcha_validation_output = apply_filters('swpm_validate_login_form_submission', ''); if (!empty($captcha_validation_output)) { $this->lastStatusMsg = SwpmUtils::_('Captcha validation failed on login form.'); return; }
if (is_email($swpm_user_name)) {//User is trying to log-in using an email address $email = sanitize_email($swpm_user_name); $query = $wpdb->prepare("SELECT user_name FROM " . $wpdb->prefix . "swpm_members_tbl WHERE email = %s", $email); $username = $wpdb->get_var($query); if ($username) {//Found a user record $swpm_user_name = $username; //Grab the usrename value so it can be used in the authentication process. SwpmLog::log_auth_debug("Authentication request using email address: " . $email . ', Found a user record with username: ' . $swpm_user_name, true); } }
//Lets process the request. Check username and password $user = sanitize_user($swpm_user_name); $pass = trim($swpm_password); SwpmLog::log_auth_debug("Authentication request - Username: " . $swpm_user_name, true);
$query = "SELECT * FROM " . $wpdb->prefix . "swpm_members_tbl WHERE user_name = %s"; $userData = $wpdb->get_row($wpdb->prepare($query, $user)); $this->userData = $userData; if (!$userData) { $this->isLoggedIn = false; $this->userData = null; $this->lastStatusMsg = SwpmUtils::_("User Not Found."); return false; } $check = $this->check_password($pass, $userData->password); if (!$check) { $this->isLoggedIn = false; $this->userData = null; $this->lastStatusMsg = SwpmUtils::_("Password Empty or Invalid."); return false; } if ($this->check_constraints()) { $rememberme = filter_input(INPUT_POST, 'rememberme'); $remember = empty($rememberme) ? false : true; $this->set_cookie($remember); $this->isLoggedIn = true; $this->lastStatusMsg = "Logged In."; SwpmLog::log_auth_debug("Authentication successful for username: " . $user . ". Executing swpm_login action hook.", true); do_action('swpm_login', $user, $pass, $remember); return true; } } return false; }
private function check_constraints() { if (empty($this->userData)) { return false; } global $wpdb; $enable_expired_login = SwpmSettings::get_instance()->get_value('enable-expired-account-login', '');
//Update the last accessed date and IP address for this login attempt. $wpdb->update(table, data, where, format, where format) $last_accessed_date = current_time('mysql'); $last_accessed_ip = SwpmUtils::get_user_ip_address(); $wpdb->update($wpdb->prefix . 'swpm_members_tbl', array('last_accessed' => $last_accessed_date, 'last_accessed_from_ip' => $last_accessed_ip), array('member_id' => $this->userData->member_id), array('%s', '%s'), array('%d') );
//Check the member's account status. $can_login = true; if ($this->userData->account_state == 'inactive' && empty($enable_expired_login)) { $this->lastStatusMsg = SwpmUtils::_('Account is inactive.'); $can_login = false; } else if (($this->userData->account_state == 'expired') && empty($enable_expired_login)) { $this->lastStatusMsg = SwpmUtils::_('Account has expired.'); $can_login = false; } else if ($this->userData->account_state == 'pending') { $this->lastStatusMsg = SwpmUtils::_('Account is pending.'); $can_login = false; } else if ($this->userData->account_state == 'activation_required') { $resend_email_url = add_query_arg(array( 'swpm_resend_activation_email' => '1', 'swpm_member_id' => $this->userData->member_id, ), get_home_url()); $msg = sprintf(SwpmUtils::_('You need to activate your account. If you didn\'t receive an email then %s to resend the activation email.'), '<a href="' . $resend_email_url . '">' . SwpmUtils::_('click here') . '</a>'); $this->lastStatusMsg = $msg; $can_login = false; }
if (!$can_login) { $this->isLoggedIn = false; $this->userData = null; return false; }
if (SwpmUtils::is_subscription_expired($this->userData)) { if ($this->userData->account_state == 'active') { $wpdb->update($wpdb->prefix . 'swpm_members_tbl', array('account_state' => 'expired'), array('member_id' => $this->userData->member_id), array('%s'), array('%d')); } if (empty($enable_expired_login)) { $this->lastStatusMsg = SwpmUtils::_('Account has expired.'); $this->isLoggedIn = false; $this->userData = null; return false; } }
$this->permitted = SwpmPermission::get_instance($this->userData->membership_level); $this->lastStatusMsg = SwpmUtils::_("You are logged in as:") . $this->userData->user_name; $this->isLoggedIn = true; return true; }
private function check_password($plain_password, $hashed_pw) { global $wp_hasher; if (empty($plain_password)) { return false; } if (empty($wp_hasher)) { require_once( ABSPATH . 'wp-includes/class-phpass.php'); $wp_hasher = new PasswordHash(8, TRUE); } return $wp_hasher->CheckPassword($plain_password, $hashed_pw); }
public function match_password($password) { if (!$this->is_logged_in()) { return false; } return $this->check_password($password, $this->get('password')); }
public function login_to_swpm_using_wp_user($user) { if ($this->isLoggedIn) { return false; } $email = $user->user_email; $member = SwpmMemberUtils::get_user_by_email($email); if (empty($member)) { //There is no swpm profile with this email. return false; } $this->userData = $member; $this->isLoggedIn = true; $this->set_cookie(); SwpmLog::log_auth_debug('Member has been logged in using WP User object.', true); $this->check_constraints(); return true; }
public function login($user, $pass, $remember = '', $secure = '') { SwpmLog::log_auth_debug("SwpmAuth::login()", true); if ($this->isLoggedIn) { return; } if ($this->authenticate($user, $pass) && $this->validate()) { $this->set_cookie($remember, $secure); } else { $this->isLoggedIn = false; $this->userData = null; } return $this->lastStatusMsg; }
public function logout() { if (!$this->isLoggedIn) { return; } setcookie(SIMPLE_WP_MEMBERSHIP_AUTH, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN); setcookie(SIMPLE_WP_MEMBERSHIP_SEC_AUTH, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN); $this->userData = null; $this->isLoggedIn = false; $this->lastStatusMsg = SwpmUtils::_("Logged Out Successfully."); do_action('swpm_logout'); }
private function set_cookie($remember = '', $secure = '') { if ($remember) { $expiration = time() + 1209600; //14 days $expire = $expiration + 43200; //12 hours grace period } else { $expiration = time() + 259200; //3 days. $expire = $expiration; //The minimum cookie expiration should be at least a few days. }
$expire = apply_filters('swpm_auth_cookie_expiry_value', $expire);
setcookie("swpm_in_use", "swpm_in_use", $expire, COOKIEPATH, COOKIE_DOMAIN);
$expiration_timestamp = SwpmUtils::get_expiration_timestamp($this->userData); $enable_expired_login = SwpmSettings::get_instance()->get_value('enable-expired-account-login', ''); // make sure cookie doesn't live beyond account expiration date. // but if expired account login is enabled then ignore if account is expired $expiration = empty($enable_expired_login) ? min($expiration, $expiration_timestamp) : $expiration; $pass_frag = substr($this->userData->password, 8, 4); $scheme = 'auth'; if (!$secure) { $secure = is_ssl(); } $key = SwpmAuth::b_hash($this->userData->user_name . $pass_frag . '|' . $expiration, $scheme); $hash = hash_hmac('md5', $this->userData->user_name . '|' . $expiration, $key); $auth_cookie = $this->userData->user_name . '|' . $expiration . '|' . $hash; $auth_cookie_name = $secure ? SIMPLE_WP_MEMBERSHIP_SEC_AUTH : SIMPLE_WP_MEMBERSHIP_AUTH; setcookie($auth_cookie_name, $auth_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure, true); }
private function validate() { $auth_cookie_name = is_ssl() ? SIMPLE_WP_MEMBERSHIP_SEC_AUTH : SIMPLE_WP_MEMBERSHIP_AUTH; if (!isset($_COOKIE[$auth_cookie_name]) || empty($_COOKIE[$auth_cookie_name])) { return false; } $cookie_elements = explode('|', $_COOKIE[$auth_cookie_name]); if (count($cookie_elements) != 3) { return false; }
//SwpmLog::log_auth_debug("validate() - " . $_COOKIE[$auth_cookie_name], true); list($username, $expiration, $hmac) = $cookie_elements; $expired = $expiration; // Allow a grace period for POST and AJAX requests if (defined('DOING_AJAX') || 'POST' == $_SERVER['REQUEST_METHOD']) { $expired += HOUR_IN_SECONDS; } // Quick check to see if an honest cookie has expired if ($expired < time()) { $this->lastStatusMsg = SwpmUtils::_("Session Expired."); //do_action('auth_cookie_expired', $cookie_elements); SwpmLog::log_auth_debug("validate() - Session Expired", true); return false; }
global $wpdb; $query = " SELECT * FROM " . $wpdb->prefix . "swpm_members_tbl WHERE user_name = %s"; $user = $wpdb->get_row($wpdb->prepare($query, $username)); if (empty($user)) { $this->lastStatusMsg = SwpmUtils::_("Invalid Username"); return false; }
$pass_frag = substr($user->password, 8, 4); $key = SwpmAuth::b_hash($username . $pass_frag . '|' . $expiration); $hash = hash_hmac('md5', $username . '|' . $expiration, $key); if ($hmac != $hash) { $this->lastStatusMsg = SwpmUtils::_("Please login again."); SwpmLog::log_auth_debug("validate() - Bad Hash", true); wp_logout(); //Force logout of WP user session to clear the bad hash. return false; }
if ($expiration < time()) { $GLOBALS['login_grace_period'] = 1; } $this->userData = $user; return $this->check_constraints(); }
public static function b_hash($data, $scheme = 'auth') { $salt = wp_salt($scheme) . 'j4H!B3TA,J4nIn4.'; return hash_hmac('md5', $data, $salt); }
public function is_logged_in() { return $this->isLoggedIn; }
public function get($key, $default = "") { if (isset($this->userData->$key)) { return $this->userData->$key; } if (isset($this->permitted->$key)) { return $this->permitted->$key; } if (!empty($this->permitted)) { return $this->permitted->get($key, $default); } return $default; }
public function get_message() { return $this->lastStatusMsg; }
public function get_expire_date() { if ($this->isLoggedIn) { return SwpmUtils::get_formatted_expiry_date($this->get('subscription_starts'), $this->get('subscription_period'), $this->get('subscription_duration_type')); } return ""; }
public function delete() { if (!$this->is_logged_in()) { return; } $user_name = $this->get('user_name'); $user_id = $this->get('member_id'); $subscr_id = $this->get('subscr_id'); $email = $this->get('email'); // let's check if Stripe subscription needs to be cancelled as well global $wpdb; $q = $wpdb->prepare('SELECT * FROM `' . $wpdb->prefix . 'swpm_payments_tbl` WHERE email = %s AND gateway = "stripe" AND subscr_id = %s LIMIT 1', array($email, $subscr_id));
$member = $wpdb->get_row($q, ARRAY_A); if (!is_null($member)) { //looks like we need to cancel Stripe subscription $pieces = explode('|', $subscr_id); if (!empty($pieces)) { $subscr_id = $pieces[0]; $button_id = $pieces[1]; SwpmLog::log_simple_debug("Attempting to cancel Stripe Subscription #" . $subscr_id, true); //check if button exists if (get_post($button_id)) { $settings = SwpmSettings::get_instance(); $sandbox_enabled = $settings->get_value('enable-sandbox-testing'); if ($sandbox_enabled) { SwpmLog::log_simple_debug("Sandbox payment mode is enabled. Using test API key details.", true); $secret_key = get_post_meta($button_id, 'stripe_test_secret_key', true); ; //Use sandbox API key } else { $secret_key = get_post_meta($button_id, 'stripe_live_secret_key', true); ; //Use live API key } //Include the Stripe library. include(SIMPLE_WP_MEMBERSHIP_PATH . 'lib/stripe-gateway/init.php'); \Stripe\Stripe::setApiKey($secret_key); // Let's try to cancel subscription try { $sub = \Stripe\Subscription::retrieve($subscr_id); $sub->cancel(); } catch (Exception $e) { SwpmLog::log_simple_debug("Error occurred during Stripe Subscription cancellation. " . $e->getMessage(), false); $body = $e->getJsonBody(); $error = $body['error']; $error_string = print_r($error, true); SwpmLog::log_simple_debug("Error details: " . $error_string, false); } if (!isset($error)) { SwpmLog::log_simple_debug("Stripe Subscription has been cancelled.", true); } } } }
wp_clear_auth_cookie(); $this->logout(); SwpmMembers::delete_swpm_user_by_id($user_id); SwpmMembers::delete_wp_user($user_name); }
public function reload_user_data() { if (!$this->is_logged_in()) { return; } global $wpdb; $query = "SELECT * FROM " . $wpdb->prefix . "swpm_members_tbl WHERE member_id = %d"; $this->userData = $wpdb->get_row($wpdb->prepare($query, $this->userData->member_id)); }
public function is_expired_account() { if (!$this->is_logged_in()) { return null; } $account_status = $this->get('account_state'); if ($account_status == 'expired' || $account_status == 'inactive') { //Expired or Inactive accounts are both considered to be expired. return true; } return false; }
}
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