// public $db
// A PDO database object for interaction.
//
+ // public $running_on_localhost
+ // A boolean telling if the system is running on localhost (where https is not required).
+ //
// private $pwd_cost
// The cost parameter for use with PHP password_hash function.
//
// function log($code, $additional_info)
// Log an entry for admin purposes, with a code and some additional info.
//
+ // function checkForSecureConnection()
+ // Check is the connection is secure and return an array of error messages (empty if it's secure).
+ //
+ // function initSession()
+ // Initialize a session. Returns an associative array of all the DB fields of the session.
+ //
// function checkPasswordConstraints($new_password, $user_email)
// Check password constraints and return an array of error messages (empty if all constraints are met).
//
function __construct($settings, $db) {
// *** constructor ***
$this->db = $db;
+ $this->db->exec("SET time_zone='+00:00';"); // Execute directly on PDO object, set session to UTC to make our gmdate() values match correctly.
+ $this->running_on_localhost = preg_match('/^((.+\.)?localhost|127\.0\.0\.\d+)$/', $_SERVER['SERVER_NAME']);
if (array_key_exists('pwd_cost', $settings)) {
$this->pwd_cost = $settings['pwd_cost'];
}
}
public $db = null;
+ public $running_on_localhost = false;
private $pwd_cost = 10;
private $pwd_nonces = array();
}
}
+ function checkForSecureConnection() {
+ $errors = array();
+ if (($_SERVER['SERVER_PORT'] != 443) && !$this->running_on_localhost) {
+ $errors[] = _('You are not accessing this site on a secure connection, so authentication doesn\'t work.');
+ }
+ return $errors;
+ }
+
+ function initSession() {
+ $session = null;
+ if (strlen(@$_COOKIE['sessionkey'])) {
+ // Fetch the session - or at least try to.
+ $result = $this->db->prepare('SELECT * FROM `auth_sessions` WHERE `sesskey` = :sesskey AND `time_expire` > :expire;');
+ $result->execute(array(':sesskey' => $_COOKIE['sessionkey'], ':expire' => gmdate('Y-m-d H:i:s')));
+ $row = $result->fetch(PDO::FETCH_ASSOC);
+ if ($row) {
+ $session = $row;
+ }
+ }
+ if (is_null($session)) {
+ // Create new session and set cookie.
+ $sesskey = $this->createSessionKey();
+ setcookie('sessionkey', $sesskey, 0, "", "", !$this->running_on_localhost, true); // Last two params are secure and httponly, secure is not set on localhost.
+ $result = $this->db->prepare('INSERT INTO `auth_sessions` (`sesskey`, `time_expire`) VALUES (:sesskey, :expire);');
+ $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s', strtotime('+5 minutes'))));
+ // After insert, actually fetch the session row from the DB so we have all values.
+ $result = $this->db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;');
+ $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s')));
+ $row = $result->fetch(PDO::FETCH_ASSOC);
+ if ($row) {
+ $session = $row;
+ }
+ else {
+ $this->log('session_create_failure', 'key: '.$sesskey);
+ }
+ }
+ return $session;
+ }
+
function checkPasswordConstraints($new_password, $user_email) {
$errors = array();
if ($new_password != trim($new_password)) {