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admin-bar.php
atomlib.php
author-template.php
blocks.php
bookmark-template.php
bookmark.php
cache.php
canonical.php
capabilities.php
category-template.php
category.php
class-IXR.php
class-feed.php
class-http.php
class-json.php
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class-phpass.php
class-phpmailer.php
class-pop3.php
class-requests.php
class-simplepie.php
class-smtp.php
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class-walker-category-dropdown.php
class-walker-category.php
class-walker-comment.php
class-walker-nav-menu.php
class-walker-page-dropdown.php
class-walker-page.php
class-wp-admin-bar.php
class-wp-ajax-response.php
class-wp-block-parser.php
class-wp-block-styles-registry.php
class-wp-block-type-registry.php
class-wp-block-type.php
class-wp-comment-query.php
class-wp-comment.php
class-wp-customize-control.php
class-wp-customize-manager.php
class-wp-customize-nav-menus.php
class-wp-customize-panel.php
class-wp-customize-section.php
class-wp-customize-setting.php
class-wp-customize-widgets.php
class-wp-date-query.php
class-wp-dependency.php
class-wp-editor.php
class-wp-embed.php
class-wp-error.php
class-wp-fatal-error-handler.php
class-wp-feed-cache-transient.php
class-wp-feed-cache.php
class-wp-hook.php
class-wp-http-cookie.php
class-wp-http-curl.php
class-wp-http-encoding.php
class-wp-http-ixr-client.php
class-wp-http-proxy.php
class-wp-http-requests-hooks.php
class-wp-http-requests-response.php
class-wp-http-response.php
class-wp-http-streams.php
class-wp-image-editor-gd.php
class-wp-image-editor-imagick.php
class-wp-image-editor.php
class-wp-list-util.php
class-wp-locale-switcher.php
class-wp-locale.php
class-wp-matchesmapregex.php
class-wp-meta-query.php
class-wp-metadata-lazyloader.php
class-wp-network-query.php
class-wp-network.php
class-wp-oembed-controller.php
class-wp-oembed.php
class-wp-paused-extensions-storage.php
class-wp-post-type.php
class-wp-post.php
class-wp-query.php
class-wp-recovery-mode-cookie-service.php
class-wp-recovery-mode-email-service.php
class-wp-recovery-mode-key-service.php
class-wp-recovery-mode-link-service.php
class-wp-recovery-mode.php
class-wp-rewrite.php
class-wp-role.php
class-wp-roles.php
class-wp-session-tokens.php
class-wp-simplepie-file.php
class-wp-simplepie-sanitize-kses.php
class-wp-site-query.php
class-wp-site.php
class-wp-tax-query.php
class-wp-taxonomy.php
class-wp-term-query.php
class-wp-term.php
class-wp-text-diff-renderer-inline.php
class-wp-text-diff-renderer-table.php
class-wp-theme.php
class-wp-user-meta-session-tokens.php
class-wp-user-query.php
class-wp-user-request.php
class-wp-user.php
class-wp-walker.php
class-wp-widget-factory.php
class-wp-widget.php
class-wp-xmlrpc-server.php
class-wp.php
class.wp-dependencies.php
class.wp-scripts.php
class.wp-styles.php
comment-template.php
comment.php
compat.php
cron.php
date.php
default-constants.php
default-filters.php
default-widgets.php
deprecated.php
embed-template.php
embed.php
error-protection.php
feed-atom-comments.php
feed-atom.php
feed-rdf.php
feed-rss.php
feed-rss2-comments.php
feed-rss2.php
feed.php
formatting.php
functions.php
functions.wp-scripts.php
functions.wp-styles.php
general-template.php
http.php
kses.php
l10n.php
link-template.php
load.php
locale.php
media-template.php
media.php
meta.php
ms-blogs.php
ms-default-constants.php
ms-default-filters.php
ms-deprecated.php
ms-files.php
ms-functions.php
ms-load.php
ms-network.php
ms-settings.php
ms-site.php
nav-menu-template.php
nav-menu.php
option.php
pluggable-deprecated.php
pluggable.php
plugin.php
post-formats.php
post-template.php
post-thumbnail-template.php
post.php
query.php
registration-functions.php
registration.php
rest-api.php
revision.php
rewrite.php
rss-functions.php
rss.php
script-loader.php
session.php
shortcodes.php
spl-autoload-compat.php
taxonomy.php
template-loader.php
template.php
theme.php
update.php
user.php
vars.php
version.php
widgets.php
wp-db.php
wp-diff.php
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Edit File: class-wp-session-tokens.php
<?php /** * Session API: WP_Session_Tokens class * * @package WordPress * @subpackage Session * @since 4.7.0 */ /** * Abstract class for managing user session tokens. * * @since 4.0.0 */ abstract class WP_Session_Tokens { /** * User ID. * * @since 4.0.0 * @var int User ID. */ protected $user_id; /** * Protected constructor. Use the `get_instance()` method to get the instance. * * @since 4.0.0 * * @param int $user_id User whose session to manage. */ protected function __construct( $user_id ) { $this->user_id = $user_id; } /** * Retrieves a session manager instance for a user. * * This method contains a {@see 'session_token_manager'} filter, allowing a plugin to swap out * the session manager for a subclass of `WP_Session_Tokens`. * * @since 4.0.0 * * @param int $user_id User whose session to manage. * @return WP_Session_Tokens The session object, which is by default an instance of * the `WP_User_Meta_Session_Tokens` class. */ final public static function get_instance( $user_id ) { /** * Filters the class name for the session token manager. * * @since 4.0.0 * * @param string $session Name of class to use as the manager. * Default 'WP_User_Meta_Session_Tokens'. */ $manager = apply_filters( 'session_token_manager', 'WP_User_Meta_Session_Tokens' ); return new $manager( $user_id ); } /** * Hashes the given session token for storage. * * @since 4.0.0 * * @param string $token Session token to hash. * @return string A hash of the session token (a verifier). */ final private function hash_token( $token ) { // If ext/hash is not present, use sha1() instead. if ( function_exists( 'hash' ) ) { return hash( 'sha256', $token ); } else { return sha1( $token ); } } /** * Retrieves a user's session for the given token. * * @since 4.0.0 * * @param string $token Session token. * @return array|null The session, or null if it does not exist. */ final public function get( $token ) { $verifier = $this->hash_token( $token ); return $this->get_session( $verifier ); } /** * Validates the given session token for authenticity and validity. * * Checks that the given token is present and hasn't expired. * * @since 4.0.0 * * @param string $token Token to verify. * @return bool Whether the token is valid for the user. */ final public function verify( $token ) { $verifier = $this->hash_token( $token ); return (bool) $this->get_session( $verifier ); } /** * Generates a session token and attaches session information to it. * * A session token is a long, random string. It is used in a cookie * to link that cookie to an expiration time and to ensure the cookie * becomes invalidated when the user logs out. * * This function generates a token and stores it with the associated * expiration time (and potentially other session information via the * {@see 'attach_session_information'} filter). * * @since 4.0.0 * * @param int $expiration Session expiration timestamp. * @return string Session token. */ final public function create( $expiration ) { /** * Filters the information attached to the newly created session. * * Can be used to attach further information to a session. * * @since 4.0.0 * * @param array $session Array of extra data. * @param int $user_id User ID. */ $session = apply_filters( 'attach_session_information', array(), $this->user_id ); $session['expiration'] = $expiration; // IP address. if ( ! empty( $_SERVER['REMOTE_ADDR'] ) ) { $session['ip'] = $_SERVER['REMOTE_ADDR']; } // User-agent. if ( ! empty( $_SERVER['HTTP_USER_AGENT'] ) ) { $session['ua'] = wp_unslash( $_SERVER['HTTP_USER_AGENT'] ); } // Timestamp $session['login'] = time(); $token = wp_generate_password( 43, false, false ); $this->update( $token, $session ); return $token; } /** * Updates the data for the session with the given token. * * @since 4.0.0 * * @param string $token Session token to update. * @param array $session Session information. */ final public function update( $token, $session ) { $verifier = $this->hash_token( $token ); $this->update_session( $verifier, $session ); } /** * Destroys the session with the given token. * * @since 4.0.0 * * @param string $token Session token to destroy. */ final public function destroy( $token ) { $verifier = $this->hash_token( $token ); $this->update_session( $verifier, null ); } /** * Destroys all sessions for this user except the one with the given token (presumably the one in use). * * @since 4.0.0 * * @param string $token_to_keep Session token to keep. */ final public function destroy_others( $token_to_keep ) { $verifier = $this->hash_token( $token_to_keep ); $session = $this->get_session( $verifier ); if ( $session ) { $this->destroy_other_sessions( $verifier ); } else { $this->destroy_all_sessions(); } } /** * Determines whether a session is still valid, based on its expiration timestamp. * * @since 4.0.0 * * @param array $session Session to check. * @return bool Whether session is valid. */ final protected function is_still_valid( $session ) { return $session['expiration'] >= time(); } /** * Destroys all sessions for a user. * * @since 4.0.0 */ final public function destroy_all() { $this->destroy_all_sessions(); } /** * Destroys all sessions for all users. * * @since 4.0.0 */ final public static function destroy_all_for_all_users() { /** This filter is documented in wp-includes/class-wp-session-tokens.php */ $manager = apply_filters( 'session_token_manager', 'WP_User_Meta_Session_Tokens' ); call_user_func( array( $manager, 'drop_sessions' ) ); } /** * Retrieves all sessions for a user. * * @since 4.0.0 * * @return array Sessions for a user. */ final public function get_all() { return array_values( $this->get_sessions() ); } /** * Retrieves all sessions of the user. * * @since 4.0.0 * * @return array Sessions of the user. */ abstract protected function get_sessions(); /** * Retrieves a session based on its verifier (token hash). * * @since 4.0.0 * * @param string $verifier Verifier for the session to retrieve. * @return array|null The session, or null if it does not exist. */ abstract protected function get_session( $verifier ); /** * Updates a session based on its verifier (token hash). * * Omitting the second argument destroys the session. * * @since 4.0.0 * * @param string $verifier Verifier for the session to update. * @param array $session Optional. Session. Omitting this argument destroys the session. */ abstract protected function update_session( $verifier, $session = null ); /** * Destroys all sessions for this user, except the single session with the given verifier. * * @since 4.0.0 * * @param string $verifier Verifier of the session to keep. */ abstract protected function destroy_other_sessions( $verifier ); /** * Destroys all sessions for the user. * * @since 4.0.0 */ abstract protected function destroy_all_sessions(); /** * Destroys all sessions for all users. * * @since 4.0.0 */ public static function drop_sessions() {} }
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