109 lines
2.7 KiB
PHP
109 lines
2.7 KiB
PHP
<?php
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/**
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* Handle data for the current customers session.
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* Implements the WC_Session abstract class
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*
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* @class WC_Session_Transients
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* @version 2.0.0
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* @package WooCommerce/Classes
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* @author WooThemes
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*/
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
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class WC_Session_Transients extends WC_Session {
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/** customer_id */
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private $_customer_id;
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/** cookie name */
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private $_cookie;
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/** cookie expiration time */
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private $_cookie_expires;
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/**
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* Constructor for the session class.
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*
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* @access public
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* @return void
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*/
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public function __construct() {
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parent::__construct();
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$this->_cookie = 'wc_session_cookie_' . COOKIEHASH;
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$this->_cookie_expiration = apply_filters( 'wc_session_transients_expiration', 172800 ); // 48 hours default
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$this->_customer_id = $this->get_customer_id();
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$this->_data = maybe_unserialize( get_transient( 'wc_session_' . $this->_customer_id ) );
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if ( false === $this->_data )
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$this->_data = array();
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}
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/**
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* get_customer_id function.
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*
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* @access private
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* @return mixed
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*/
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private function get_customer_id() {
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if ( $customer_id = $this->get_session_cookie() ) {
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return $customer_id;
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} elseif ( is_user_logged_in() ) {
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return get_current_user_id();
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} else {
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return $this->create_customer_id();
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}
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}
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/**
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* get_session_cookie function.
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*
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* @access private
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* @return mixed
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*/
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private function get_session_cookie() {
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if ( ! isset( $_COOKIE[ $this->_cookie ] ) )
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return false;
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list( $customer_id, $expires, $hash ) = explode( '|', $_COOKIE[ $this->_cookie ] );
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// Validate hash
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$data = $customer_id . $expires;
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$rehash = hash_hmac( 'md5', $data, wp_hash( $data ) );
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if ( $hash != $rehash )
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return false;
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return $customer_id;
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}
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/**
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* Create a unqiue customer ID and store it in a cookie, along with its hashed value and expirey date. Stored for 48hours.
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*
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* @access private
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* @return void
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*/
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private function create_customer_id() {
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$customer_id = wp_generate_password( 32 ); // Ensure this and the transient is < 45 chars. wc_session_ leaves 34.
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$expires = time() + $this->_cookie_expiration;
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$data = $customer_id . $expires;
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$hash = hash_hmac( 'md5', $data, wp_hash( $data ) );
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$value = $customer_id . '|' . $expires . '|' . $hash;
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setcookie( $this->_cookie, $value, $expires, COOKIEPATH, COOKIE_DOMAIN, false, true );
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return $customer_id;
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}
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/**
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* save_data function.
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*
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* @access public
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* @return void
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*/
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public function save_data() {
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if ( ! empty( $this->_data ) )
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set_transient( 'wc_session_' . $this->_customer_id, $this->_data, $this->_cookie_expiration );
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}
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} |