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176
kirby/src/Session/AutoSession.php
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176
kirby/src/Session/AutoSession.php
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@ -0,0 +1,176 @@
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<?php
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namespace Kirby\Session;
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/**
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* AutoSession - simplified session handler with fully automatic session creation
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*
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* @package Kirby Session
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* @author Lukas Bestle <lukas@getkirby.com>
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* @link https://getkirby.com
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* @copyright Bastian Allgeier
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* @license https://opensource.org/licenses/MIT
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*/
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class AutoSession
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{
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protected Sessions $sessions;
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protected array $options;
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protected Session $createdSession;
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/**
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* Creates a new AutoSession instance
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*
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* @param \Kirby\Session\SessionStore|string $store SessionStore object or a path to the storage directory (uses the FileSessionStore)
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* @param array $options Optional additional options:
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* - `durationNormal`: Duration of normal sessions in seconds; defaults to 2 hours
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* - `durationLong`: Duration of "remember me" sessions in seconds; defaults to 2 weeks
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* - `timeout`: Activity timeout in seconds (integer or false for none); *only* used for normal sessions; defaults to `1800` (half an hour)
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* - `cookieDomain`: Domain to set the cookie to (this disables the cookie path restriction); defaults to none (default browser behavior)
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* - `cookieName`: Name to use for the session cookie; defaults to `kirby_session`
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* - `gcInterval`: How often should the garbage collector be run?; integer or `false` for never; defaults to `100`
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*/
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public function __construct(
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SessionStore|string $store,
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array $options = []
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) {
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// merge options with defaults
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$this->options = [
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'durationNormal' => 7200,
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'durationLong' => 1209600,
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'timeout' => 1800,
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'cookieDomain' => null,
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'cookieName' => 'kirby_session',
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'gcInterval' => 100,
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...$options
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];
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// create an internal instance of the low-level Sessions class
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$this->sessions = new Sessions($store, [
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'cookieDomain' => $this->options['cookieDomain'],
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'cookieName' => $this->options['cookieName'],
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'gcInterval' => $this->options['gcInterval']
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]);
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}
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/**
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* Returns the automatic session
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*
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* @param array $options Optional additional options:
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* - `detect`: Whether to allow sessions in the `Authorization` HTTP header (`true`) or only in the session cookie (`false`); defaults to `false`
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* - `createMode`: When creating a new session, should it be set as a cookie or is it going to be transmitted manually to be used in a header?; defaults to `cookie`
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* - `long`: Whether the session is a long "remember me" session or a normal session; defaults to `false`
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*/
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public function get(array $options = []): Session
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{
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// merge options with defaults
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$options = [
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'detect' => false,
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'createMode' => 'cookie',
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'long' => false,
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...$options
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];
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// determine expiry options based on the session type
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if ($options['long'] === true) {
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$duration = $this->options['durationLong'];
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$timeout = false;
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} else {
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$duration = $this->options['durationNormal'];
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$timeout = $this->options['timeout'];
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}
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// get the current session
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$session = match ($options['detect']) {
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true => $this->sessions->currentDetected(),
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default => $this->sessions->current()
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};
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// create a new session
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if ($session === null) {
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$session = $this->createdSession ?? $this->sessions->create([
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'mode' => $options['createMode'],
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'startTime' => time(),
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'expiryTime' => time() + $duration,
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'timeout' => $timeout,
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'renewable' => true,
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]);
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// cache the newly created session to ensure
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// that we don't create multiple
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$this->createdSession = $session;
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}
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// update the session configuration if the $options changed
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// always use the less strict value for compatibility with features
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// that depend on the less strict behavior
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if ($duration > $session->duration()) {
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// the duration needs to be extended
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$session->duration($duration);
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}
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if ($session->timeout() !== false) {
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// a timeout exists
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if ($timeout === false) {
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// it needs to be completely disabled
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$session->timeout(false);
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} elseif (is_int($timeout) && $timeout > $session->timeout()) {
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// it needs to be extended
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$session->timeout($timeout);
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}
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}
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// if the session has been created and was not yet initialized,
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// update the mode to a custom mode;
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// don't update back to cookie mode because the
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// "special" behavior always wins
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if ($session->token() === null && $options['createMode'] !== 'cookie') {
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$session->mode($options['createMode']);
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}
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return $session;
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}
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/**
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* Creates a new empty session that is *not* automatically
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* transmitted to the client;
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* Useful for custom applications like a password reset link
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* Does *not* affect the automatic session
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*
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* @param array $options Optional additional options:
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* - `startTime`: Time the session starts being valid (date string or timestamp); defaults to `now`
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* - `expiryTime`: Time the session expires (date string or timestamp); defaults to `+ 2 hours`
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* - `timeout`: Activity timeout in seconds (integer or false for none); defaults to `1800` (half an hour)
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* - `renewable`: Should it be possible to extend the expiry date?; defaults to `true`
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*/
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public function createManually(array $options = []): Session
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{
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// only ever allow manual transmission mode
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// to prevent overwriting our "auto" session
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$options['mode'] = 'manual';
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return $this->sessions->create($options);
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}
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/**
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* Returns the specified Session object
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* @since 3.3.1
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*
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* @param string $token Session token, either including or without the key
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*/
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public function getManually(string $token): Session
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{
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return $this->sessions->get($token, 'manual');
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}
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/**
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* Deletes all expired sessions
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*
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* If the `gcInterval` is configured, this is done automatically
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* when initializing the AutoSession class
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*/
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public function collectGarbage(): void
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{
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$this->sessions->collectGarbage();
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}
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}
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480
kirby/src/Session/FileSessionStore.php
Normal file
480
kirby/src/Session/FileSessionStore.php
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@ -0,0 +1,480 @@
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<?php
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namespace Kirby\Session;
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use FilesystemIterator;
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use Kirby\Exception\Exception;
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use Kirby\Exception\LogicException;
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use Kirby\Exception\NotFoundException;
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use Kirby\Filesystem\Dir;
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use Kirby\Filesystem\F;
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use Kirby\Toolkit\Str;
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/**
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* @package Kirby Session
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* @author Lukas Bestle <lukas@getkirby.com>
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* @link https://getkirby.com
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* @copyright Bastian Allgeier
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* @license https://opensource.org/licenses/MIT
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*/
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class FileSessionStore extends SessionStore
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{
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protected string $path;
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// state of the session files
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protected array $handles = [];
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protected array $isLocked = [];
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/**
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* Creates a new instance of the file session store
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*
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* @param string $path Path to the storage directory
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*/
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public function __construct(string $path)
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{
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// create the directory if it doesn't already exist
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Dir::make($path, true);
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// store the canonicalized path
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$this->path = realpath($path);
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// make sure it is usable for storage
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if (is_writable($this->path) === false) {
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throw new Exception(
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key: 'session.filestore.dirNotWritable',
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data: ['path' => $this->path],
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fallback: 'The session storage directory "' . $path . '" is not writable',
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translate: false,
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httpCode: 500
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);
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}
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}
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/**
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* Creates a new session ID with the given expiry time
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*
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* Needs to make sure that the session does not already exist
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* and needs to reserve it by locking it exclusively.
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*
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* @param int $expiryTime Timestamp
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* @return string Randomly generated session ID (without timestamp)
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*/
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public function createId(int $expiryTime): string
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{
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clearstatcache();
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do {
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// use helper from the abstract SessionStore class
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$id = static::generateId();
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$name = $this->name($expiryTime, $id);
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$path = $this->path($name);
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} while (file_exists($path));
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// reserve the file
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touch($path);
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$this->lock($expiryTime, $id);
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// ensure that no other thread already wrote to the same file,
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// otherwise try again (very unlikely scenario!)
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$contents = $this->get($expiryTime, $id);
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if ($contents !== '') {
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// @codeCoverageIgnoreStart
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$this->unlock($expiryTime, $id);
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return $this->createId($expiryTime);
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// @codeCoverageIgnoreEnd
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||||
}
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return $id;
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}
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/**
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* Checks if the given session exists
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*
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* @param int $expiryTime Timestamp
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* @param string $id Session ID
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* @return bool true: session exists,
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* false: session doesn't exist
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*/
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public function exists(int $expiryTime, string $id): bool
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{
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$name = $this->name($expiryTime, $id);
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$path = $this->path($name);
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clearstatcache();
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return is_file($path) === true;
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}
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/**
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* Locks the given session exclusively
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*
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* Needs to throw an Exception on error.
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*
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* @param int $expiryTime Timestamp
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* @param string $id Session ID
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||||
*/
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public function lock(int $expiryTime, string $id): void
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||||
{
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$name = $this->name($expiryTime, $id);
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// check if the file is already locked
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if (isset($this->isLocked[$name]) === true) {
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return;
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||||
}
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// lock it exclusively
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$handle = $this->handle($name);
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||||
$result = flock($handle, LOCK_EX);
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|
||||
// @codeCoverageIgnoreStart
|
||||
if ($result !== true) {
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
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||||
translate: false,
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||||
httpCode: 500
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||||
);
|
||||
}
|
||||
// @codeCoverageIgnoreEnd
|
||||
|
||||
// make a note that the file is now locked
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||||
$this->isLocked[$name] = true;
|
||||
}
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||||
|
||||
/**
|
||||
* Removes all locks on the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
public function unlock(int $expiryTime, string $id): void
|
||||
{
|
||||
$name = $this->name($expiryTime, $id);
|
||||
|
||||
// check if the file is already unlocked or doesn't exist
|
||||
if (isset($this->isLocked[$name]) === false) {
|
||||
return;
|
||||
}
|
||||
|
||||
if ($this->exists($expiryTime, $id) === false) {
|
||||
unset($this->isLocked[$name]);
|
||||
return;
|
||||
}
|
||||
|
||||
// remove the exclusive lock
|
||||
$handle = $this->handle($name);
|
||||
$result = flock($handle, LOCK_UN);
|
||||
|
||||
// @codeCoverageIgnoreStart
|
||||
if ($result !== true) {
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
// @codeCoverageIgnoreEnd
|
||||
|
||||
// make a note that the file is no longer locked
|
||||
unset($this->isLocked[$name]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the stored session data of the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
public function get(int $expiryTime, string $id): string
|
||||
{
|
||||
$name = $this->name($expiryTime, $id);
|
||||
$path = $this->path($name);
|
||||
$handle = $this->handle($name);
|
||||
|
||||
// set read lock to prevent other threads from corrupting
|
||||
// the data while we read it; only if we don't already have
|
||||
// a write lock, which is even better
|
||||
if (isset($this->isLocked[$name]) === false) {
|
||||
$result = flock($handle, LOCK_SH);
|
||||
|
||||
if ($result !== true) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
}
|
||||
|
||||
clearstatcache();
|
||||
$filesize = filesize($path);
|
||||
if ($filesize > 0) {
|
||||
// always read the whole file
|
||||
rewind($handle);
|
||||
$string = fread($handle, $filesize);
|
||||
} else {
|
||||
// we don't need to read empty files
|
||||
$string = '';
|
||||
}
|
||||
|
||||
// remove the shared lock if we set one above
|
||||
if (isset($this->isLocked[$name]) === false) {
|
||||
$result = flock($handle, LOCK_UN);
|
||||
|
||||
if ($result !== true) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
}
|
||||
|
||||
return $string;
|
||||
}
|
||||
|
||||
/**
|
||||
* Stores data to the given session
|
||||
*
|
||||
* Needs to make sure that the session exists.
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
* @param string $data Session data to write
|
||||
*/
|
||||
public function set(int $expiryTime, string $id, string $data): void
|
||||
{
|
||||
$name = $this->name($expiryTime, $id);
|
||||
$handle = $this->handle($name);
|
||||
|
||||
// validate that we have an exclusive lock already
|
||||
if (isset($this->isLocked[$name]) === false) {
|
||||
throw new LogicException(
|
||||
key: 'session.filestore.notLocked',
|
||||
data: ['name' => $name],
|
||||
fallback: 'Cannot write to session "' . $name . '", because it is not locked',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
// delete all file contents first
|
||||
if (rewind($handle) !== true || ftruncate($handle, 0) !== true) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
|
||||
// write the new contents
|
||||
$result = fwrite($handle, $data);
|
||||
|
||||
if (is_int($result) === false || $result === 0) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
public function destroy(int $expiryTime, string $id): void
|
||||
{
|
||||
$name = $this->name($expiryTime, $id);
|
||||
$path = $this->path($name);
|
||||
|
||||
// close the file, otherwise we can't delete it on Windows;
|
||||
// deletion is *not* thread-safe because of this, but
|
||||
// resurrection of the file is prevented in $this->set() because of
|
||||
// the check in $this->handle() every time any method is called
|
||||
$this->unlock($expiryTime, $id);
|
||||
$this->closeHandle($name);
|
||||
|
||||
// we don't need to delete files that don't exist anymore
|
||||
if ($this->exists($expiryTime, $id) === false) {
|
||||
return;
|
||||
}
|
||||
|
||||
// file still exists, delete it
|
||||
if (@F::unlink($path) !== true) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all expired sessions
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*/
|
||||
public function collectGarbage(): void
|
||||
{
|
||||
$iterator = new FilesystemIterator($this->path);
|
||||
|
||||
$currentTime = time();
|
||||
foreach ($iterator as $file) {
|
||||
// make sure that the file is a session file
|
||||
// prevents deleting files like .gitignore or other unrelated files
|
||||
if (preg_match('/^[0-9]+\.[a-z0-9]+\.sess$/', $file->getFilename()) !== 1) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// extract the data from the filename
|
||||
$name = $file->getBasename('.sess');
|
||||
$expiryTime = (int)Str::before($name, '.');
|
||||
$id = Str::after($name, '.');
|
||||
|
||||
if ($expiryTime < $currentTime) {
|
||||
// the session has expired, delete it
|
||||
$this->destroy($expiryTime, $id);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Cleans up the open locks and file handles
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
*/
|
||||
public function __destruct()
|
||||
{
|
||||
// unlock all locked files
|
||||
foreach ($this->isLocked as $name => $locked) {
|
||||
$expiryTime = (int)Str::before($name, '.');
|
||||
$id = Str::after($name, '.');
|
||||
|
||||
$this->unlock($expiryTime, $id);
|
||||
}
|
||||
|
||||
// close all file handles
|
||||
foreach ($this->handles as $name => $handle) {
|
||||
$this->closeHandle($name);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the combined name based on expiry time and ID
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
protected function name(int $expiryTime, string $id): string
|
||||
{
|
||||
// protect against path traversal
|
||||
return $expiryTime . '.' . basename($id);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the full path to the session file
|
||||
*
|
||||
* @param string $name Combined name
|
||||
*/
|
||||
protected function path(string $name): string
|
||||
{
|
||||
return $this->path . '/' . $name . '.sess';
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a PHP file handle for a session
|
||||
*
|
||||
* @param string $name Combined name
|
||||
* @return resource File handle
|
||||
*/
|
||||
protected function handle(string $name)
|
||||
{
|
||||
// always verify that the file still exists, even if we
|
||||
// already have a handle; ensures thread-safeness for
|
||||
// recently deleted sessions, see $this->destroy()
|
||||
$path = $this->path($name);
|
||||
clearstatcache();
|
||||
|
||||
if (is_file($path) === false) {
|
||||
throw new NotFoundException(
|
||||
key: 'session.filestore.notFound',
|
||||
data: ['name' => $name],
|
||||
fallback: 'Session file "' . $name . '" does not exist',
|
||||
translate: false,
|
||||
httpCode: 404
|
||||
);
|
||||
}
|
||||
|
||||
// return from cache
|
||||
if (isset($this->handles[$name]) === true) {
|
||||
return $this->handles[$name];
|
||||
}
|
||||
|
||||
// open a new handle
|
||||
$handle = @fopen($path, 'r+b');
|
||||
|
||||
if (is_resource($handle) === false) {
|
||||
throw new Exception(
|
||||
key: 'session.filestore.notOpened',
|
||||
data: ['name' => $name],
|
||||
fallback: 'Session file "' . $name . '" could not be opened',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
return $this->handles[$name] = $handle;
|
||||
}
|
||||
|
||||
/**
|
||||
* Closes an open file handle
|
||||
*
|
||||
* @param string $name Combined name
|
||||
*/
|
||||
protected function closeHandle(string $name): void
|
||||
{
|
||||
if (isset($this->handles[$name]) === false) {
|
||||
return;
|
||||
}
|
||||
|
||||
$handle = $this->handles[$name];
|
||||
unset($this->handles[$name]);
|
||||
$result = fclose($handle);
|
||||
|
||||
if ($result !== true) {
|
||||
// @codeCoverageIgnoreStart
|
||||
throw new Exception(
|
||||
key: 'session.filestore.unexpectedFilesystemError',
|
||||
fallback: 'Unexpected file system error',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
// @codeCoverageIgnoreEnd
|
||||
}
|
||||
}
|
||||
}
|
||||
832
kirby/src/Session/Session.php
Normal file
832
kirby/src/Session/Session.php
Normal file
|
|
@ -0,0 +1,832 @@
|
|||
<?php
|
||||
|
||||
namespace Kirby\Session;
|
||||
|
||||
use Kirby\Exception\BadMethodCallException;
|
||||
use Kirby\Exception\Exception;
|
||||
use Kirby\Exception\InvalidArgumentException;
|
||||
use Kirby\Exception\LogicException;
|
||||
use Kirby\Exception\NotFoundException;
|
||||
use Kirby\Http\Cookie;
|
||||
use Kirby\Http\Url;
|
||||
use Kirby\Toolkit\Str;
|
||||
use Kirby\Toolkit\SymmetricCrypto;
|
||||
|
||||
/**
|
||||
* @package Kirby Session
|
||||
* @author Lukas Bestle <lukas@getkirby.com>
|
||||
* @link https://getkirby.com
|
||||
* @copyright Bastian Allgeier
|
||||
* @license https://opensource.org/licenses/MIT
|
||||
*/
|
||||
class Session
|
||||
{
|
||||
// parent data
|
||||
protected string $mode;
|
||||
|
||||
// parts of the token
|
||||
protected int|null $tokenExpiry = null;
|
||||
protected string|null $tokenId = null;
|
||||
protected string|null $tokenKey = null;
|
||||
|
||||
// persistent data
|
||||
protected int $startTime;
|
||||
protected int $expiryTime;
|
||||
protected int $duration;
|
||||
protected int|false $timeout = false;
|
||||
protected int|null $lastActivity = null;
|
||||
protected bool $renewable;
|
||||
protected SessionData $data;
|
||||
protected array|null $newSession = null;
|
||||
|
||||
// temporary state flags
|
||||
protected bool $updatingLastActivity = false;
|
||||
protected bool $destroyed = false;
|
||||
protected bool $writeMode = false;
|
||||
protected bool $needsRetransmission = false;
|
||||
|
||||
/**
|
||||
* Creates a new Session instance
|
||||
*
|
||||
* @param \Kirby\Session\Sessions $sessions Parent sessions object
|
||||
* @param string|null $token Session token or null for a new session
|
||||
* @param array $options Optional additional options:
|
||||
* - `mode`: Token transmission mode (cookie or manual); defaults to `cookie`
|
||||
* - `startTime`: Time the session starts being valid (date string or timestamp); defaults to `now`
|
||||
* - `expiryTime`: Time the session expires (date string or timestamp); defaults to `+ 2 hours`
|
||||
* - `timeout`: Activity timeout in seconds (integer or false for none); defaults to `1800` (half an hour)
|
||||
* - `renewable`: Should it be possible to extend the expiry date?; defaults to `true`
|
||||
*/
|
||||
public function __construct(
|
||||
protected Sessions $sessions,
|
||||
string|null $token,
|
||||
array $options
|
||||
) {
|
||||
$this->mode = $options['mode'] ?? 'cookie';
|
||||
|
||||
// ensure that all changes are committed on script termination
|
||||
register_shutdown_function([$this, 'commit']);
|
||||
|
||||
if (is_string($token) === true) {
|
||||
// existing session
|
||||
|
||||
// set the token as instance vars
|
||||
$this->parseToken($token);
|
||||
|
||||
// initialize, but only try to write to the session if not read-only
|
||||
// (only the case for moved sessions)
|
||||
$this->init();
|
||||
|
||||
if ($this->tokenKey !== null) {
|
||||
$this->autoRenew();
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// new session ($token = null)
|
||||
|
||||
// set data based on options
|
||||
$this->startTime = static::timeToTimestamp($options['startTime'] ?? time());
|
||||
$this->expiryTime = static::timeToTimestamp($options['expiryTime'] ?? '+ 2 hours', $this->startTime);
|
||||
$this->duration = $this->expiryTime - $this->startTime;
|
||||
$this->timeout = $options['timeout'] ?? 1800;
|
||||
$this->renewable = $options['renewable'] ?? true;
|
||||
$this->data = new SessionData($this, []);
|
||||
|
||||
// validate persistent data
|
||||
if (time() > $this->expiryTime) {
|
||||
// session must not already be expired, but the start time may be in the future
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::__construct',
|
||||
'argument' => '$options[\'expiryTime\']'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
if ($this->duration < 0) {
|
||||
// expiry time must be after start time
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::__construct',
|
||||
'argument' => '$options[\'startTime\' & \'expiryTime\']'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
// set activity time if a timeout was requested
|
||||
if (is_int($this->timeout) === true) {
|
||||
$this->lastActivity = time();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the session token or null if the session doesn't have a token yet
|
||||
*/
|
||||
public function token(): string|null
|
||||
{
|
||||
if ($this->tokenExpiry !== null) {
|
||||
$token = $this->tokenExpiry . '.' . $this->tokenId;
|
||||
|
||||
if (is_string($this->tokenKey) === true) {
|
||||
$token .= '.' . $this->tokenKey;
|
||||
}
|
||||
|
||||
return $token;
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets or sets the transmission mode
|
||||
* Setting only works for new sessions that haven't been transmitted yet
|
||||
*
|
||||
* @param string|null $mode Optional new transmission mode
|
||||
* @return string Transmission mode
|
||||
*/
|
||||
public function mode(string|null $mode = null): string
|
||||
{
|
||||
if ($mode !== null) {
|
||||
// only allow this if this is a new session, otherwise the change
|
||||
// might not be applied correctly to the current request
|
||||
if ($this->token() !== null) {
|
||||
throw new InvalidArgumentException(
|
||||
data: ['method' => 'Session::mode', 'argument' => '$mode'],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->mode = $mode;
|
||||
}
|
||||
|
||||
return $this->mode;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the session start time
|
||||
*
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function startTime(): int
|
||||
{
|
||||
return $this->startTime;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets or sets the session expiry time
|
||||
* Setting the expiry time also updates the duration and regenerates the session token
|
||||
*
|
||||
* @param string|int|null $expiryTime Optional new expiry timestamp or time string to set
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function expiryTime(string|int|null $expiryTime = null): int
|
||||
{
|
||||
if ($expiryTime !== null) {
|
||||
// convert to a timestamp
|
||||
$expiryTime = static::timeToTimestamp($expiryTime);
|
||||
|
||||
// verify that the expiry time is not in the past
|
||||
if ($expiryTime <= time()) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::expiryTime',
|
||||
'argument' => '$expiryTime'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->prepareForWriting();
|
||||
$this->expiryTime = $expiryTime;
|
||||
$this->duration = $expiryTime - time();
|
||||
$this->regenerateTokenIfNotNew();
|
||||
}
|
||||
|
||||
return $this->expiryTime;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets or sets the session duration
|
||||
* Setting the duration also updates the expiry time and regenerates the session token
|
||||
*
|
||||
* @param int|null $duration Optional new duration in seconds to set
|
||||
* @return int Number of seconds
|
||||
*/
|
||||
public function duration(int|null $duration = null): int
|
||||
{
|
||||
if ($duration !== null) {
|
||||
// verify that the duration is at least 1 second
|
||||
if ($duration < 1) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::duration',
|
||||
'argument' => '$duration'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->prepareForWriting();
|
||||
$this->duration = $duration;
|
||||
$this->expiryTime = time() + $duration;
|
||||
$this->regenerateTokenIfNotNew();
|
||||
}
|
||||
|
||||
return $this->duration;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets or sets the session timeout
|
||||
*
|
||||
* @param int|false|null $timeout Optional new timeout to set or false to disable timeout
|
||||
* @return int|false Number of seconds or false for "no timeout"
|
||||
*/
|
||||
public function timeout(int|false|null $timeout = null): int|false
|
||||
{
|
||||
if ($timeout !== null) {
|
||||
// verify that the timeout is at least 1 second
|
||||
if (is_int($timeout) === true && $timeout < 1) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::timeout',
|
||||
'argument' => '$timeout'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->prepareForWriting();
|
||||
$this->timeout = $timeout;
|
||||
$this->lastActivity = is_int($timeout) ? time() : null;
|
||||
}
|
||||
|
||||
return $this->timeout;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets or sets the renewable flag
|
||||
* Automatically renews the session if renewing gets enabled
|
||||
*
|
||||
* @param bool|null $renewable Optional new renewable flag to set
|
||||
*/
|
||||
public function renewable(bool|null $renewable = null): bool
|
||||
{
|
||||
if ($renewable !== null) {
|
||||
$this->prepareForWriting();
|
||||
$this->renewable = $renewable;
|
||||
$this->autoRenew();
|
||||
}
|
||||
|
||||
return $this->renewable;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the session data object
|
||||
*
|
||||
* @return \Kirby\Session\SessionData
|
||||
*/
|
||||
public function data()
|
||||
{
|
||||
return $this->data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Magic call method that proxies all calls to session data methods
|
||||
*
|
||||
* @param string $name Method name (one of set, increment, decrement, get, pull, remove, clear)
|
||||
* @param array $arguments Method arguments
|
||||
*/
|
||||
public function __call(string $name, array $arguments): mixed
|
||||
{
|
||||
// validate that we can handle the called method
|
||||
$methods = [
|
||||
'clear',
|
||||
'decrement',
|
||||
'get',
|
||||
'increment',
|
||||
'pull',
|
||||
'remove',
|
||||
'set'
|
||||
];
|
||||
|
||||
if (in_array($name, $methods, true) === false) {
|
||||
throw new BadMethodCallException(
|
||||
data: ['method' => 'Session::' . $name],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
return $this->data()->$name(...$arguments);
|
||||
}
|
||||
|
||||
/**
|
||||
* Writes all changes to the session to the session store
|
||||
*/
|
||||
public function commit(): void
|
||||
{
|
||||
// nothing to do if nothing changed or the session
|
||||
// has been just created or destroyed
|
||||
/**
|
||||
* @todo The $this->destroyed check gets flagged by Psalm for unknown reasons
|
||||
* @psalm-suppress ParadoxicalCondition
|
||||
*/
|
||||
if (
|
||||
$this->writeMode !== true ||
|
||||
$this->tokenExpiry === null ||
|
||||
$this->destroyed === true
|
||||
) {
|
||||
return;
|
||||
}
|
||||
|
||||
// collect all data
|
||||
if ($this->newSession !== null) {
|
||||
// the token has changed
|
||||
// we are writing to the old session:
|
||||
// it only gets the reference to the new session
|
||||
// and a shortened expiry time (30 second grace period)
|
||||
$data = [
|
||||
'startTime' => $this->startTime(),
|
||||
'expiryTime' => time() + 30,
|
||||
'newSession' => $this->newSession[0]
|
||||
];
|
||||
|
||||
// include the token key for the new session if we
|
||||
// have access to the PHP `sodium` extension;
|
||||
// otherwise (if no encryption is possible), the token key
|
||||
// is omitted, which makes the new session read-only
|
||||
// when accessed through the old session
|
||||
if ($crypto = $this->crypto()) {
|
||||
// encrypt the new token key with the old token key
|
||||
// so that attackers with read access to the session file
|
||||
// (e.g. via directory traversal) cannot impersonate the new session
|
||||
$data['newSessionKey'] = $crypto->encrypt($this->newSession[1]);
|
||||
}
|
||||
} else {
|
||||
$data = [
|
||||
'startTime' => $this->startTime(),
|
||||
'expiryTime' => $this->expiryTime(),
|
||||
'duration' => $this->duration(),
|
||||
'timeout' => $this->timeout(),
|
||||
'lastActivity' => $this->lastActivity,
|
||||
'renewable' => $this->renewable(),
|
||||
'data' => $this->data()->get()
|
||||
];
|
||||
}
|
||||
|
||||
// encode the data and attach an HMAC
|
||||
$data = serialize($data);
|
||||
$data = hash_hmac('sha256', $data, $this->tokenKey) . "\n" . $data;
|
||||
|
||||
// store the data
|
||||
$this->sessions->store()->set($this->tokenExpiry, $this->tokenId, $data);
|
||||
$this->sessions->store()->unlock($this->tokenExpiry, $this->tokenId);
|
||||
$this->writeMode = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Entirely destroys the session
|
||||
*/
|
||||
public function destroy(): void
|
||||
{
|
||||
// no need to destroy new or destroyed sessions
|
||||
if ($this->tokenExpiry === null || $this->destroyed === true) {
|
||||
return;
|
||||
}
|
||||
|
||||
// remove session file
|
||||
$this->sessions->store()->destroy($this->tokenExpiry, $this->tokenId);
|
||||
$this->destroyed = true;
|
||||
$this->writeMode = false;
|
||||
$this->needsRetransmission = false;
|
||||
|
||||
// remove cookie
|
||||
if ($this->mode === 'cookie') {
|
||||
Cookie::remove($this->sessions->cookieName());
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Renews the session with the same session duration
|
||||
* Renewing also regenerates the session token
|
||||
*/
|
||||
public function renew(): void
|
||||
{
|
||||
if ($this->renewable() !== true) {
|
||||
throw new LogicException(
|
||||
key: 'session.notRenewable',
|
||||
fallback: 'Cannot renew a session that is not renewable, call $session->renewable(true) first',
|
||||
translate: false,
|
||||
);
|
||||
}
|
||||
|
||||
$this->prepareForWriting();
|
||||
$this->expiryTime = time() + $this->duration();
|
||||
$this->regenerateTokenIfNotNew();
|
||||
}
|
||||
|
||||
/**
|
||||
* Regenerates the session token
|
||||
* The old token will keep its validity for a 30 second grace period
|
||||
*/
|
||||
public function regenerateToken(): void
|
||||
{
|
||||
// don't do anything for destroyed sessions
|
||||
if ($this->destroyed === true) {
|
||||
return;
|
||||
}
|
||||
|
||||
$this->prepareForWriting();
|
||||
|
||||
// generate new token
|
||||
$tokenExpiry = $this->expiryTime;
|
||||
$tokenId = $this->sessions->store()->createId($tokenExpiry);
|
||||
$tokenKey = bin2hex(random_bytes(32));
|
||||
|
||||
// mark the old session as moved if there is one
|
||||
if ($this->tokenExpiry !== null) {
|
||||
$this->newSession = [$tokenExpiry . '.' . $tokenId, $tokenKey];
|
||||
$this->commit();
|
||||
|
||||
// we are now in the context of the new session
|
||||
$this->newSession = null;
|
||||
}
|
||||
|
||||
// set new data as instance vars
|
||||
$this->tokenExpiry = $tokenExpiry;
|
||||
$this->tokenId = $tokenId;
|
||||
$this->tokenKey = $tokenKey;
|
||||
|
||||
// the new session needs to be written for the first time
|
||||
$this->writeMode = true;
|
||||
|
||||
// (re)transmit session token
|
||||
if ($this->mode === 'cookie') {
|
||||
$cookieDomain = $this->sessions->cookieDomain();
|
||||
|
||||
Cookie::set($this->sessions->cookieName(), $this->token(), [
|
||||
'lifetime' => $this->tokenExpiry,
|
||||
'path' => $cookieDomain ? '/' : Url::index(['host' => null, 'trailingSlash' => true]),
|
||||
'domain' => $cookieDomain,
|
||||
'secure' => Url::scheme() === 'https',
|
||||
'httpOnly' => true,
|
||||
'sameSite' => 'Lax'
|
||||
]);
|
||||
} else {
|
||||
$this->needsRetransmission = true;
|
||||
}
|
||||
|
||||
// update cache of the Sessions instance with the new token
|
||||
$this->sessions->updateCache($this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the session token needs to be retransmitted to the client
|
||||
* Only relevant in header and manual modes
|
||||
*/
|
||||
public function needsRetransmission(): bool
|
||||
{
|
||||
return $this->needsRetransmission;
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensures that all pending changes are written
|
||||
* to disk before the object is destructed
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function __destruct()
|
||||
{
|
||||
$this->commit();
|
||||
}
|
||||
|
||||
/**
|
||||
* Initially generates the token for new sessions
|
||||
* Used internally
|
||||
*/
|
||||
public function ensureToken(): void
|
||||
{
|
||||
if ($this->tokenExpiry === null) {
|
||||
$this->regenerateToken();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Puts the session into write mode by acquiring a lock
|
||||
* and reloading the data
|
||||
* @unstable
|
||||
*/
|
||||
public function prepareForWriting(): void
|
||||
{
|
||||
// verify that we need to get into write mode:
|
||||
// - new sessions are only written to if the token has explicitly been ensured
|
||||
// using $session->ensureToken() -> lazy session creation
|
||||
// - destroyed sessions are never written to
|
||||
// - no need to lock and re-init if we are already in write mode
|
||||
/**
|
||||
* @todo The $this->destroyed check gets flagged by Psalm for unknown reasons
|
||||
* @psalm-suppress ParadoxicalCondition
|
||||
*/
|
||||
if (
|
||||
$this->tokenExpiry === null ||
|
||||
$this->destroyed === true ||
|
||||
$this->writeMode === true
|
||||
) {
|
||||
return;
|
||||
}
|
||||
|
||||
// don't allow writing for read-only sessions
|
||||
// (only the case for moved sessions when the PHP `sodium` extension is not available)
|
||||
/**
|
||||
* @todo This check gets flagged by Psalm for unknown reasons
|
||||
* @psalm-suppress ParadoxicalCondition
|
||||
*/
|
||||
if ($this->tokenKey === null) {
|
||||
throw new LogicException(
|
||||
key: 'session.readonly',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" is currently read-only because it was accessed via an old session token',
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->sessions->store()->lock($this->tokenExpiry, $this->tokenId);
|
||||
$this->init();
|
||||
$this->writeMode = true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a symmetric crypto instance based on the
|
||||
* token key of the session
|
||||
*/
|
||||
protected function crypto(): SymmetricCrypto|null
|
||||
{
|
||||
if (
|
||||
$this->tokenKey === null ||
|
||||
SymmetricCrypto::isAvailable() === false
|
||||
) {
|
||||
return null; // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
return new SymmetricCrypto(secretKey: hex2bin($this->tokenKey));
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses a token string into its parts and sets them as instance vars
|
||||
*
|
||||
* @param string $token Session token
|
||||
* @param bool $withoutKey If true, $token is passed without key
|
||||
*/
|
||||
protected function parseToken(string $token, bool $withoutKey = false): void
|
||||
{
|
||||
// split the token into its parts
|
||||
$parts = explode('.', $token);
|
||||
|
||||
// only continue if the token has exactly the right amount of parts
|
||||
$expectedParts = ($withoutKey === true) ? 2 : 3;
|
||||
|
||||
if (count($parts) !== $expectedParts) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::parseToken',
|
||||
'argument' => '$token'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$tokenExpiry = (int)$parts[0];
|
||||
$tokenId = $parts[1];
|
||||
$tokenKey = ($withoutKey === true) ? null : $parts[2];
|
||||
|
||||
// verify that all parts were parsed correctly using reassembly
|
||||
$expectedToken = $tokenExpiry . '.' . $tokenId;
|
||||
|
||||
if ($withoutKey === false) {
|
||||
$expectedToken .= '.' . $tokenKey;
|
||||
}
|
||||
|
||||
if ($expectedToken !== $token) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Session::parseToken',
|
||||
'argument' => '$token'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
$this->tokenExpiry = $tokenExpiry;
|
||||
$this->tokenId = $tokenId;
|
||||
$this->tokenKey = $tokenKey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes sure that the given value is a valid timestamp
|
||||
*
|
||||
* @param string|int $time Timestamp or date string (must be supported by `strtotime()`)
|
||||
* @param int|null $now Timestamp to use as a base for the calculation of relative dates
|
||||
* @return int Timestamp value
|
||||
*/
|
||||
protected static function timeToTimestamp(
|
||||
string|int $time,
|
||||
int|null $now = null
|
||||
): int {
|
||||
// default to current time as $now
|
||||
$now ??= time();
|
||||
|
||||
// convert date strings to a timestamp first
|
||||
if (is_string($time) === true) {
|
||||
$time = strtotime($time, $now);
|
||||
}
|
||||
|
||||
return $time;
|
||||
}
|
||||
|
||||
/**
|
||||
* Loads the session data from the session store
|
||||
*/
|
||||
protected function init(): void
|
||||
{
|
||||
// sessions that are new, written to or that have been destroyed should never be initialized
|
||||
if (
|
||||
$this->tokenExpiry === null ||
|
||||
$this->writeMode === true ||
|
||||
$this->destroyed === true
|
||||
) {
|
||||
// unexpected error that shouldn't occur
|
||||
throw new Exception(translate: false); // @codeCoverageIgnore
|
||||
}
|
||||
|
||||
// make sure that the session exists
|
||||
if ($this->sessions->store()->exists($this->tokenExpiry, $this->tokenId) !== true) {
|
||||
throw new NotFoundException(
|
||||
key: 'session.notFound',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" does not exist',
|
||||
translate: false,
|
||||
httpCode: 404
|
||||
);
|
||||
}
|
||||
|
||||
// get the session data from the store
|
||||
$data = $this->sessions->store()->get(
|
||||
$this->tokenExpiry,
|
||||
$this->tokenId
|
||||
);
|
||||
|
||||
// verify HMAC
|
||||
// skip if we don't have the key (only the case for moved sessions)
|
||||
$hmac = Str::before($data, "\n");
|
||||
$data = trim(Str::after($data, "\n"));
|
||||
|
||||
if (
|
||||
$this->tokenKey !== null &&
|
||||
hash_equals(hash_hmac('sha256', $data, $this->tokenKey), $hmac) !== true
|
||||
) {
|
||||
throw new LogicException(
|
||||
key: 'session.invalid',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" is invalid',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
// decode the serialized data
|
||||
$data = @unserialize($data);
|
||||
|
||||
if ($data === false) {
|
||||
throw new LogicException(
|
||||
key: 'session.invalid',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" is invalid',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
// verify start and expiry time
|
||||
if (
|
||||
time() < $data['startTime'] ||
|
||||
time() > $data['expiryTime']
|
||||
) {
|
||||
throw new LogicException(
|
||||
key: 'session.invalid',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" is invalid',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
// follow to the new session if there is one
|
||||
if (isset($data['newSession']) === true) {
|
||||
// decrypt the token key if provided and we have access to
|
||||
// the PHP `sodium` extension for decryption
|
||||
if (
|
||||
isset($data['newSessionKey']) === true &&
|
||||
$crypto = $this->crypto()
|
||||
) {
|
||||
$tokenKey = $crypto->decrypt($data['newSessionKey']);
|
||||
|
||||
$this->parseToken($data['newSession'] . '.' . $tokenKey);
|
||||
$this->init();
|
||||
return;
|
||||
}
|
||||
|
||||
// otherwise initialize without the token key (read-only mode)
|
||||
$this->parseToken($data['newSession'], true);
|
||||
$this->init();
|
||||
return;
|
||||
}
|
||||
|
||||
// verify timeout
|
||||
if (is_int($data['timeout']) === true) {
|
||||
if (time() - $data['lastActivity'] > $data['timeout']) {
|
||||
throw new LogicException(
|
||||
key: 'session.invalid',
|
||||
data: ['token' => $this->token()],
|
||||
fallback: 'Session "' . $this->token() . '" is invalid',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
);
|
||||
}
|
||||
|
||||
// set a new activity timestamp, but only every few minutes for better performance
|
||||
// don't do this if another call to init() is already doing it to prevent endless loops;
|
||||
// also don't do this for read-only sessions
|
||||
if (
|
||||
$this->updatingLastActivity === false &&
|
||||
$this->tokenKey !== null &&
|
||||
time() - $data['lastActivity'] > $data['timeout'] / 15
|
||||
) {
|
||||
$this->updatingLastActivity = true;
|
||||
$this->prepareForWriting();
|
||||
|
||||
// the remaining init steps have been done by prepareForWriting()
|
||||
$this->lastActivity = time();
|
||||
$this->updatingLastActivity = false;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// (re)initialize all instance variables
|
||||
$this->startTime = $data['startTime'];
|
||||
$this->expiryTime = $data['expiryTime'];
|
||||
$this->duration = $data['duration'];
|
||||
$this->timeout = $data['timeout'];
|
||||
$this->lastActivity = $data['lastActivity'];
|
||||
$this->renewable = $data['renewable'];
|
||||
|
||||
// reload data into existing object to avoid breaking memory references
|
||||
if (isset($this->data) === true) {
|
||||
$this->data()->reload($data['data']);
|
||||
} else {
|
||||
$this->data = new SessionData($this, $data['data']);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Regenerate session token, but only if there is already one
|
||||
*/
|
||||
protected function regenerateTokenIfNotNew(): void
|
||||
{
|
||||
if ($this->tokenExpiry !== null) {
|
||||
$this->regenerateToken();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Automatically renews the session if possible and necessary
|
||||
*/
|
||||
protected function autoRenew(): void
|
||||
{
|
||||
// check if the session needs renewal at all
|
||||
if ($this->needsRenewal() !== true) {
|
||||
return;
|
||||
}
|
||||
|
||||
// re-load the session and check again to make sure that no other thread
|
||||
// already renewed the session in the meantime
|
||||
$this->prepareForWriting();
|
||||
|
||||
if ($this->needsRenewal() === true) {
|
||||
$this->renew();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if the session can be renewed and if the last renewal
|
||||
* was more than half a session duration ago
|
||||
*/
|
||||
protected function needsRenewal(): bool
|
||||
{
|
||||
return
|
||||
$this->renewable() === true &&
|
||||
$this->expiryTime() - time() < $this->duration() / 2;
|
||||
}
|
||||
}
|
||||
215
kirby/src/Session/SessionData.php
Normal file
215
kirby/src/Session/SessionData.php
Normal file
|
|
@ -0,0 +1,215 @@
|
|||
<?php
|
||||
|
||||
namespace Kirby\Session;
|
||||
|
||||
use Kirby\Exception\LogicException;
|
||||
use Kirby\Toolkit\A;
|
||||
|
||||
/**
|
||||
* The session object can be used to
|
||||
* store visitor preferences for your
|
||||
* site throughout various requests.
|
||||
*
|
||||
* @package Kirby Session
|
||||
* @author Lukas Bestle <lukas@getkirby.com>
|
||||
* @link https://getkirby.com
|
||||
* @copyright Bastian Allgeier
|
||||
* @license https://opensource.org/licenses/MIT
|
||||
*/
|
||||
class SessionData
|
||||
{
|
||||
/**
|
||||
* Creates a new SessionData instance
|
||||
*
|
||||
* @codeCoverageIgnore
|
||||
* @param \Kirby\Session\Session $session Session object this data belongs to
|
||||
* @param array $data Currently stored session data
|
||||
*/
|
||||
public function __construct(
|
||||
protected Session $session,
|
||||
protected array $data
|
||||
) {
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets one or multiple session values by key
|
||||
*
|
||||
* @param string|array $key The key to define or a key-value array with multiple values
|
||||
* @param mixed $value The value for the passed key (only if one $key is passed)
|
||||
*/
|
||||
public function set(
|
||||
string|array $key,
|
||||
mixed $value = null
|
||||
): void {
|
||||
$this->session->ensureToken();
|
||||
$this->session->prepareForWriting();
|
||||
|
||||
if (is_string($key) === true) {
|
||||
$this->data[$key] = $value;
|
||||
} else {
|
||||
$this->data = array_replace($this->data, $key);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Increments one or multiple session values by a specified amount
|
||||
*
|
||||
* @param string|array $key The key to increment or an array with multiple keys
|
||||
* @param int $by Increment by which amount?
|
||||
* @param int|null $max Maximum amount (value is not incremented further)
|
||||
*/
|
||||
public function increment(
|
||||
string|array $key,
|
||||
int $by = 1,
|
||||
int|null $max = null
|
||||
): void {
|
||||
// if array passed, call method recursively
|
||||
if (is_array($key) === true) {
|
||||
foreach ($key as $k) {
|
||||
$this->increment($k, $by, $max);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// make sure we have the correct values before getting
|
||||
$this->session->prepareForWriting();
|
||||
|
||||
$value = $this->get($key, 0);
|
||||
|
||||
if (is_int($value) === false) {
|
||||
throw new LogicException(
|
||||
key: 'session.data.increment.nonInt',
|
||||
data: ['key' => $key],
|
||||
fallback: 'Session value "' . $key . '" is not an integer and cannot be incremented',
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
// increment the value, but ensure $max constraint
|
||||
if (is_int($max) === true && $value + $by > $max) {
|
||||
// set the value to $max
|
||||
// but not if the current $value is already larger than $max
|
||||
$value = max($value, $max);
|
||||
} else {
|
||||
$value += $by;
|
||||
}
|
||||
|
||||
$this->set($key, $value);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrements one or multiple session values by a specified amount
|
||||
*
|
||||
* @param string|array $key The key to decrement or an array with multiple keys
|
||||
* @param int $by Decrement by which amount?
|
||||
* @param int|null $min Minimum amount (value is not decremented further)
|
||||
*/
|
||||
public function decrement(
|
||||
string|array $key,
|
||||
int $by = 1,
|
||||
int|null $min = null
|
||||
): void {
|
||||
// if array passed, call method recursively
|
||||
if (is_array($key) === true) {
|
||||
foreach ($key as $k) {
|
||||
$this->decrement($k, $by, $min);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// make sure we have the correct values before getting
|
||||
$this->session->prepareForWriting();
|
||||
|
||||
$value = $this->get($key, 0);
|
||||
|
||||
if (is_int($value) === false) {
|
||||
throw new LogicException(
|
||||
key: 'session.data.decrement.nonInt',
|
||||
data: ['key' => $key],
|
||||
fallback: 'Session value "' . $key . '" is not an integer and cannot be decremented',
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
// decrement the value, but ensure $min constraint
|
||||
if (is_int($min) === true && $value - $by < $min) {
|
||||
// set the value to $min
|
||||
// but not if the current $value is already smaller than $min
|
||||
$value = min($value, $min);
|
||||
} else {
|
||||
$value -= $by;
|
||||
}
|
||||
|
||||
$this->set($key, $value);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns one or all session values by key
|
||||
*
|
||||
* @param string|null $key The key to get or null for the entire data array
|
||||
* @param mixed $default Optional default value to return if the key is not defined
|
||||
*/
|
||||
public function get(
|
||||
string|null $key = null,
|
||||
mixed $default = null
|
||||
): mixed {
|
||||
if ($key === null) {
|
||||
return $this->data;
|
||||
}
|
||||
|
||||
return $this->data[$key] ?? $default;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves a value and removes it afterwards
|
||||
*
|
||||
* @param string $key The key to get
|
||||
* @param mixed $default Optional default value to return if the key is not defined
|
||||
*/
|
||||
public function pull(string $key, mixed $default = null): mixed
|
||||
{
|
||||
// make sure we have the correct value before getting
|
||||
// we do this here (but not in get) as we need to write anyway
|
||||
$this->session->prepareForWriting();
|
||||
|
||||
$value = $this->get($key, $default);
|
||||
$this->remove($key);
|
||||
return $value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes one or multiple session values by key
|
||||
*
|
||||
* @param string|array $key The key to remove or an array with multiple keys
|
||||
*/
|
||||
public function remove(string|array $key): void
|
||||
{
|
||||
$this->session->prepareForWriting();
|
||||
|
||||
foreach (A::wrap($key) as $k) {
|
||||
unset($this->data[$k]);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Clears all session data
|
||||
*/
|
||||
public function clear(): void
|
||||
{
|
||||
$this->session->prepareForWriting();
|
||||
$this->data = [];
|
||||
}
|
||||
|
||||
/**
|
||||
* Reloads the data array with the current session data
|
||||
* Only used internally
|
||||
*
|
||||
* @param array $data Currently stored session data
|
||||
*/
|
||||
public function reload(array $data): void
|
||||
{
|
||||
$this->data = $data;
|
||||
}
|
||||
}
|
||||
103
kirby/src/Session/SessionStore.php
Normal file
103
kirby/src/Session/SessionStore.php
Normal file
|
|
@ -0,0 +1,103 @@
|
|||
<?php
|
||||
|
||||
namespace Kirby\Session;
|
||||
|
||||
/**
|
||||
* @package Kirby Session
|
||||
* @author Lukas Bestle <lukas@getkirby.com>
|
||||
* @link https://getkirby.com
|
||||
* @copyright Bastian Allgeier
|
||||
* @license https://opensource.org/licenses/MIT
|
||||
*/
|
||||
abstract class SessionStore
|
||||
{
|
||||
/**
|
||||
* Creates a new session ID with the given expiry time
|
||||
*
|
||||
* Needs to make sure that the session does not already exist
|
||||
* and needs to reserve it by locking it exclusively.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @return string Randomly generated session ID (without timestamp)
|
||||
*/
|
||||
abstract public function createId(int $expiryTime): string;
|
||||
|
||||
/**
|
||||
* Checks if the given session exists
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
* @return bool true: session exists,
|
||||
* false: session doesn't exist
|
||||
*/
|
||||
abstract public function exists(int $expiryTime, string $id): bool;
|
||||
|
||||
/**
|
||||
* Locks the given session exclusively
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
abstract public function lock(int $expiryTime, string $id): void;
|
||||
|
||||
/**
|
||||
* Removes all locks on the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
abstract public function unlock(int $expiryTime, string $id): void;
|
||||
|
||||
/**
|
||||
* Returns the stored session data of the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
abstract public function get(int $expiryTime, string $id): string;
|
||||
|
||||
/**
|
||||
* Stores data to the given session
|
||||
*
|
||||
* Needs to make sure that the session exists.
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
* @param string $data Session data to write
|
||||
*/
|
||||
abstract public function set(int $expiryTime, string $id, string $data): void;
|
||||
|
||||
/**
|
||||
* Deletes the given session
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*
|
||||
* @param int $expiryTime Timestamp
|
||||
* @param string $id Session ID
|
||||
*/
|
||||
abstract public function destroy(int $expiryTime, string $id): void;
|
||||
|
||||
/**
|
||||
* Deletes all expired sessions
|
||||
*
|
||||
* Needs to throw an Exception on error.
|
||||
*/
|
||||
abstract public function collectGarbage(): void;
|
||||
|
||||
/**
|
||||
* Securely generates a random session ID
|
||||
*
|
||||
* @return string Random hex string with 20 bytes
|
||||
*/
|
||||
protected static function generateId(): string
|
||||
{
|
||||
return bin2hex(random_bytes(10));
|
||||
}
|
||||
}
|
||||
274
kirby/src/Session/Sessions.php
Normal file
274
kirby/src/Session/Sessions.php
Normal file
|
|
@ -0,0 +1,274 @@
|
|||
<?php
|
||||
|
||||
namespace Kirby\Session;
|
||||
|
||||
use Kirby\Exception\Exception;
|
||||
use Kirby\Exception\InvalidArgumentException;
|
||||
use Kirby\Exception\LogicException;
|
||||
use Kirby\Http\Cookie;
|
||||
use Kirby\Http\Request;
|
||||
use Kirby\Toolkit\Str;
|
||||
use Throwable;
|
||||
|
||||
/**
|
||||
* Sessions - Base class for all session fiddling
|
||||
*
|
||||
* @package Kirby Session
|
||||
* @author Lukas Bestle <lukas@getkirby.com>
|
||||
* @link https://getkirby.com
|
||||
* @copyright Bastian Allgeier
|
||||
* @license https://opensource.org/licenses/MIT
|
||||
*/
|
||||
class Sessions
|
||||
{
|
||||
protected SessionStore $store;
|
||||
protected string $mode;
|
||||
protected string|null $cookieDomain;
|
||||
protected string $cookieName;
|
||||
|
||||
protected array $cache = [];
|
||||
|
||||
/**
|
||||
* Creates a new Sessions instance
|
||||
*
|
||||
* @param \Kirby\Session\SessionStore|string $store SessionStore object or a path to the storage directory (uses the FileSessionStore)
|
||||
* @param array $options Optional additional options:
|
||||
* - `mode`: Default token transmission mode (cookie, header or manual); defaults to `cookie`
|
||||
* - `cookieDomain`: Domain to set the cookie to (this disables the cookie path restriction); defaults to none (default browser behavior)
|
||||
* - `cookieName`: Name to use for the session cookie; defaults to `kirby_session`
|
||||
* - `gcInterval`: How often should the garbage collector be run?; integer or `false` for never; defaults to `100`
|
||||
*/
|
||||
public function __construct(
|
||||
SessionStore|string $store,
|
||||
array $options = []
|
||||
) {
|
||||
$this->store = match (true) {
|
||||
$store instanceof SessionStore => $store,
|
||||
default => new FileSessionStore($store),
|
||||
};
|
||||
|
||||
$this->mode = $options['mode'] ?? 'cookie';
|
||||
$this->cookieDomain = $options['cookieDomain'] ?? null;
|
||||
$this->cookieName = $options['cookieName'] ?? 'kirby_session';
|
||||
$gcInterval = $options['gcInterval'] ?? 100;
|
||||
|
||||
// validate options
|
||||
if (in_array($this->mode, ['cookie', 'header', 'manual'], true) === false) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Sessions::__construct',
|
||||
'argument' => '$options[\'mode\']'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
|
||||
// trigger automatic garbage collection with the given probability
|
||||
if (is_int($gcInterval) === true && $gcInterval > 0) {
|
||||
// convert the interval into a probability between 0 and 1
|
||||
$gcProbability = 1 / $gcInterval;
|
||||
|
||||
// generate a random number
|
||||
$random = mt_rand(1, 10000);
|
||||
|
||||
// $random will be below or equal $gcProbability * 10000 with a probability of $gcProbability
|
||||
if ($random <= $gcProbability * 10000) {
|
||||
$this->collectGarbage();
|
||||
}
|
||||
} elseif ($gcInterval !== false) {
|
||||
throw new InvalidArgumentException(
|
||||
data: [
|
||||
'method' => 'Sessions::__construct',
|
||||
'argument' => '$options[\'gcInterval\']'
|
||||
],
|
||||
translate: false
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new empty session
|
||||
*
|
||||
* @param array $options Optional additional options:
|
||||
* - `mode`: Token transmission mode (cookie or manual); defaults to default mode of the Sessions instance
|
||||
* - `startTime`: Time the session starts being valid (date string or timestamp); defaults to `now`
|
||||
* - `expiryTime`: Time the session expires (date string or timestamp); defaults to `+ 2 hours`
|
||||
* - `timeout`: Activity timeout in seconds (integer or false for none); defaults to `1800` (half an hour)
|
||||
* - `renewable`: Should it be possible to extend the expiry date?; defaults to `true`
|
||||
*/
|
||||
public function create(array $options = []): Session
|
||||
{
|
||||
// fall back to default mode
|
||||
$options['mode'] ??= $this->mode;
|
||||
|
||||
return new Session($this, null, $options);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the specified Session object
|
||||
*
|
||||
* @param string $token Session token, either including or without the key
|
||||
* @param string|null $mode Optional transmission mode override
|
||||
*/
|
||||
public function get(string $token, string|null $mode = null): Session
|
||||
{
|
||||
return $this->cache[$token] ??= new Session(
|
||||
$this,
|
||||
$token,
|
||||
['mode' => $mode ?? $this->mode]
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the current session based on the configured token transmission mode:
|
||||
* - In `cookie` mode: Gets the session from the cookie
|
||||
* - In `header` mode: Gets the session from the `Authorization` request header
|
||||
* - In `manual` mode: Fails and throws an Exception
|
||||
*
|
||||
* @return \Kirby\Session\Session|null Either the current session or null in case there isn't one
|
||||
* @throws \Kirby\Exception\Exception
|
||||
* @throws \Kirby\Exception\LogicException
|
||||
*/
|
||||
public function current(): Session|null
|
||||
{
|
||||
$token = match ($this->mode) {
|
||||
'cookie' => $this->tokenFromCookie(),
|
||||
'header' => $this->tokenFromHeader(),
|
||||
'manual' => throw new LogicException(
|
||||
key: 'session.sessions.manualMode',
|
||||
fallback: 'Cannot automatically get current session in manual mode',
|
||||
translate: false,
|
||||
httpCode: 500
|
||||
),
|
||||
// unexpected error that shouldn't occur
|
||||
default => throw new Exception(translate: false) // @codeCoverageIgnore
|
||||
};
|
||||
|
||||
// no token was found, no session
|
||||
if (is_string($token) === false) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// token was found, try to get the session
|
||||
try {
|
||||
return $this->get($token);
|
||||
} catch (Throwable) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the current session using the following detection order without using the configured mode:
|
||||
* - Tries to get the session from the `Authorization` request header
|
||||
* - Tries to get the session from the cookie
|
||||
* - Otherwise returns null
|
||||
*
|
||||
* @return \Kirby\Session\Session|null Either the current session or null in case there isn't one
|
||||
*/
|
||||
public function currentDetected(): Session|null
|
||||
{
|
||||
$header = $this->tokenFromHeader();
|
||||
$cookie = $this->tokenFromCookie();
|
||||
|
||||
// prefer header token over cookie token
|
||||
$token = $header ?? $cookie;
|
||||
|
||||
// no token was found, no session
|
||||
if (is_string($token) === false) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// token was found, try to get the session
|
||||
try {
|
||||
return $this->get($token, match (true) {
|
||||
$header !== null => 'header',
|
||||
$cookie !== null => 'cookie'
|
||||
});
|
||||
} catch (Throwable) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Getter for the session store instance
|
||||
*/
|
||||
public function store(): SessionStore
|
||||
{
|
||||
return $this->store;
|
||||
}
|
||||
|
||||
/**
|
||||
* Getter for the cookie domain
|
||||
*/
|
||||
public function cookieDomain(): string|null
|
||||
{
|
||||
return $this->cookieDomain;
|
||||
}
|
||||
|
||||
/**
|
||||
* Getter for the cookie name
|
||||
*/
|
||||
public function cookieName(): string
|
||||
{
|
||||
return $this->cookieName;
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all expired sessions
|
||||
*
|
||||
* If the `gcInterval` is configured, this is done automatically
|
||||
* on init of the Sessions object.
|
||||
*/
|
||||
public function collectGarbage(): void
|
||||
{
|
||||
$this->store()->collectGarbage();
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the instance cache with a newly created
|
||||
* session or a session with a regenerated token
|
||||
*
|
||||
* @internal
|
||||
* @param \Kirby\Session\Session $session Session instance to push to the cache
|
||||
*/
|
||||
public function updateCache(Session $session): void
|
||||
{
|
||||
$this->cache[$session->token()] = $session;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the auth token from the cookie
|
||||
*/
|
||||
protected function tokenFromCookie(): string|null
|
||||
{
|
||||
$value = Cookie::get($this->cookieName());
|
||||
|
||||
if (is_string($value) === false) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the auth token from the Authorization header
|
||||
*/
|
||||
protected function tokenFromHeader(): string|null
|
||||
{
|
||||
$request = new Request();
|
||||
$headers = $request->headers();
|
||||
|
||||
// check if the header exists at all
|
||||
if ($header = $headers['Authorization'] ?? null) {
|
||||
// check if the header uses the "Session" scheme
|
||||
if (Str::startsWith($header, 'Session ', true) !== true) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// return the part after the scheme
|
||||
return substr($header, 8);
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue