Initial commit. State 04.2021.

wp-content/plugins/wpclef/includes/class.clef-session.php

@@ -0,0 +1,159 @@
+<?php
+/**
+ * Clef Session
+ *
+ * This is a wrapper class for WP_Session / PHP $_SESSION.
+ *
+ */
+
+// Exit if accessed directly
+if ( ! defined( 'ABSPATH' ) ) exit;
+
+class ClefSession {
+
+    private static $instance = null;
+
+    /**
+     * Holds our session data
+     *
+     * @var array
+     * @access private
+     * @since 1.5
+     */
+    private $session = array();
+
+
+    /**
+     * Whether to use PHP $_SESSION or WP_Session
+     *
+     * PHP $_SESSION is opt-in only by defining the CLEF_USE_PHP_SESSIONS constant
+     *
+     * @var bool
+     * @access private
+     * @since 1.5,1
+     */
+    private $use_php_sessions = false;
+
+
+    /**
+     * Get things started
+     *
+     * Defines our WP_Session constants, includes the necessary libraries and
+     * retrieves the WP Session instance
+     *
+     * @since 1.5
+     */
+    public function __construct() {
+
+        $this->use_php_sessions = defined( 'CLEF_USE_PHP_SESSIONS' ) && CLEF_USE_PHP_SESSIONS;
+
+        if( $this->use_php_sessions ) {
+
+            if( ! session_id() )
+                add_action( 'init', 'session_start', -2 );
+
+        } else {
+
+            // Use WP_Session (default)
+            if ( ! defined( 'WP_SESSION_COOKIE' ) )
+                define( 'WP_SESSION_COOKIE', 'clef_wp_session' );
+
+            if ( ! class_exists( 'Recursive_ArrayAccess' ) )
+                require_once CLEF_PATH . 'includes/lib/wp-session/class-recursive-arrayaccess.php';
+
+            if ( ! class_exists( 'WP_Session' ) ) {
+                require_once CLEF_PATH . 'includes/lib/wp-session/class-wp-session.php';
+                require_once CLEF_PATH . 'includes/lib/wp-session/wp-session.php';
+            }
+
+            add_filter( 'wp_session_expiration', array( $this, 'set_expiration_time' ), 99999 );
+        }
+
+        $this->init();
+    }
+
+
+    /**
+     * Setup the WP_Session instance
+     *
+     * @access public
+     * @since 1.5
+     * @return void
+     */
+    public function init() {
+        if( $this->use_php_sessions )
+            $this->session = isset( $_SESSION['clef'] ) && is_array( $_SESSION['clef'] ) ? $_SESSION['clef'] : array();
+        else
+            $this->session = WP_Session::get_instance();
+
+        return $this->session;
+    }
+
+
+    /**
+     * Retrieve session ID
+     *
+     * @access public
+     * @since 1.6
+     * @return string Session ID
+     */
+    public function get_id() {
+        return $this->session->session_id;
+    }
+
+
+    /**
+     * Retrieve a session variable
+     *
+     * @access public
+     * @since 1.5
+     * @param string $key Session key
+     * @return string Session variable
+     */
+    public function get( $key ) {
+        $key = sanitize_key( $key );
+        return isset( $this->session[ $key ] ) ? maybe_unserialize( $this->session[ $key ] ) : false;
+    }
+
+    /**
+     * Set a session variable
+     *
+     * @since 1.5
+     *
+     * @param $key Session key
+     * @param $value Session variable
+     * @return mixed Session variable
+     */
+    public function set( $key, $value ) {
+        $key = sanitize_key( $key );
+
+        if ( is_array( $value ) )
+            $this->session[ $key ] = serialize( $value );
+        else
+            $this->session[ $key ] = $value;
+
+        if( $this->use_php_sessions )
+            $_SESSION['clef'] = $this->session;
+
+        return $this->session[ $key ];
+    }
+
+    /**
+     * Force the cookie expiration time to 365 days
+     *
+     * @access public
+     * @since 1.9
+     * @param int $exp Default expiration (1 hour)
+     * @return int
+     */
+    public function set_expiration_time( $exp ) {
+        return current_time( 'timestamp' ) + ( 60 * 60 * 24 * 365 );
+    }
+
+    public static function start() {
+        if (!isset(self::$instance) || self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+}