Manages data for an an authenticated session. More...

Inheritance diagram for MediaWiki\Session\Session:

[legend]

Collaboration diagram for MediaWiki\Session\Session:

[legend]

Public Member Functions
	__construct (SessionBackend $backend, $index, LoggerInterface $logger)

	__destruct ()

	canSetUser ()
	Indicate whether the session user info can be changed. More...

	clear ()
	Delete all session data and clear the user (if possible) More...

	delaySave ()
	Delay automatic saving while multiple updates are being made. More...

	exists ( $key)
	Test if a value exists in the session. More...

	get ( $key, $default=null)
	Fetch a value from the session. More...

	getAllowedUserRights ()
	Fetch the rights allowed the user when this session is active. More...

	getId ()
	Returns the session ID. More...

	getLoggedOutTimestamp ()
	Fetch the "logged out" timestamp. More...

	getProvider ()
	Fetch the SessionProvider for this session. More...

	getProviderMetadata ()
	Fetch provider metadata. More...

	getRequest ()
	Returns the request associated with this session. More...

	getSecret ( $key, $default=null)
	Fetch a value from the session that was set with self::setSecret() More...

	getSessionId ()
	Returns the SessionId object. More...

	getToken ( $salt='', $key='default')
	Fetch a CSRF token from the session. More...

	getUser ()
	Returns the authenticated user for this session. More...

	isPersistent ()
	Indicate whether this session is persisted across requests. More...

	persist ()
	Make this session persisted across requests. More...

	remove ( $key)
	Remove a value from the session. More...

	renew ()
	Renew the session. More...

	resetAllTokens ()
	Remove all CSRF tokens from the session. More...

	resetId ()
	Changes the session ID. More...

	resetToken ( $key='default')
	Remove a CSRF token from the session. More...

	save ()
	Save the session. More...

	sessionWithRequest (WebRequest $request)
	Fetch a copy of this session attached to an alternative WebRequest. More...

	set ( $key, $value)
	Set a value in the session. More...

	setForceHTTPS ( $force)
	Set whether HTTPS should be forced. More...

	setLoggedOutTimestamp ( $ts)
	Set the "logged out" timestamp. More...

	setRememberUser ( $remember)
	Set whether the user should be remembered independently of the session ID. More...

	setSecret ( $key, $value)
	Set a value in the session, encrypted. More...

	setUser ( $user)
	Set a new user for this session. More...

	shouldForceHTTPS ()
	Whether HTTPS should be forced. More...

	shouldRememberUser ()
	Indicate whether the user should be remembered independently of the session ID. More...

	suggestLoginUsername ()
	Get a suggested username for the login form. More...

	unpersist ()
	Make this session not be persisted across requests. More...

Interface methods
	count ()

	current ()

	key ()

	next ()

	rewind ()

	valid ()

	offsetExists ( $offset)

&	offsetGet ( $offset)

	offsetSet ( $offset, $value)

	offsetUnset ( $offset)

Private Member Functions
	getSecretKeys ()
	Fetch the secret keys for self::setSecret() and self::getSecret(). More...

Static Private Member Functions
static	getEncryptionAlgorithm ()
	Decide what type of encryption to use, based on system capabilities. More...

Private Attributes
SessionBackend	$backend
	Session backend. More...

int	$index
	Session index. More...

LoggerInterface	$logger

Static Private Attributes
static null string[]	$encryptionAlgorithm = null
	Encryption algorithm to use. More...

Detailed Description

Manages data for an an authenticated session.

A Session represents the fact that the current HTTP request is part of a session. There are two broad types of Sessions, based on whether they return true or false from self::canSetUser():

When true (mutable), the Session identifies multiple requests as part of a session generically, with no tie to a particular user.
When false (immutable), the Session identifies multiple requests as part of a session by identifying and authenticating the request itself as belonging to a particular user.

The Session object also serves as a replacement for PHP's $_SESSION, managing access to per-session data.

Since: 1.27

Definition at line 48 of file Session.php.

Constructor & Destructor Documentation

◆ __construct()

MediaWiki\Session\Session::__construct	(	SessionBackend	$backend,
			$index,
		LoggerInterface	$logger
	)

Parameters

SessionBackend	$backend
int	$index
LoggerInterface	$logger

Definition at line 66 of file Session.php.

References MediaWiki\Session\Session\$backend, MediaWiki\Session\Session\$index, and MediaWiki\Session\Session\$logger.

◆ __destruct()

MediaWiki\Session\Session::__destruct ( )

Definition at line 72 of file Session.php.

Member Function Documentation

◆ canSetUser()

MediaWiki\Session\Session::canSetUser ( )

Indicate whether the session user info can be changed.

Returns: bool

Definition at line 188 of file Session.php.

◆ clear()

MediaWiki\Session\Session::clear ( )

Delete all session data and clear the user (if possible)

Definition at line 255 of file Session.php.

◆ count()

MediaWiki\Session\Session::count ( )

Definition at line 587 of file Session.php.

Referenced by MediaWiki\Session\Session\getSecret().

◆ current()

MediaWiki\Session\Session::current ( )

Definition at line 593 of file Session.php.

◆ delaySave()

MediaWiki\Session\Session::delaySave ( )

Delay automatic saving while multiple updates are being made.

Calls to save() or clear() will not be delayed.

Returns: \Wikimedia\ScopedCallback When this goes out of scope, a save will be triggered

Definition at line 567 of file Session.php.

◆ exists()

MediaWiki\Session\Session::exists ( $key )

Test if a value exists in the session.

Note: Unlike isset(), null values are considered to exist.

Parameters

string | int $key

Returns: bool

Definition at line 308 of file Session.php.

◆ get()

MediaWiki\Session\Session::get	(	$key,
		$default = `null`
	)

Fetch a value from the session.

Parameters

string \| int	$key
mixed \| null	$default	Returned if $this->exists( $key ) would be false

Returns: mixed

Definition at line 297 of file Session.php.

◆ getAllowedUserRights()

MediaWiki\Session\Session::getAllowedUserRights ( )

Fetch the rights allowed the user when this session is active.

Returns: null|string[] Allowed user rights, or null to allow all.

Definition at line 180 of file Session.php.

◆ getEncryptionAlgorithm()

static MediaWiki\Session\Session::getEncryptionAlgorithm ( )

staticprivate

Decide what type of encryption to use, based on system capabilities.

Returns: array

Definition at line 420 of file Session.php.

References MediaWiki\Session\Session\$encryptionAlgorithm, and $wgSessionInsecureSecrets.

Referenced by MediaWiki\Session\Session\getSecret(), and MediaWiki\Session\Session\setSecret().

◆ getId()

MediaWiki\Session\Session::getId ( )

Returns the session ID.

Returns: string

Definition at line 80 of file Session.php.

◆ getLoggedOutTimestamp()

MediaWiki\Session\Session::getLoggedOutTimestamp ( )

Fetch the "logged out" timestamp.

Returns: int

Definition at line 231 of file Session.php.

◆ getProvider()

MediaWiki\Session\Session::getProvider ( )

Fetch the SessionProvider for this session.

Returns: SessionProviderInterface

Definition at line 105 of file Session.php.

◆ getProviderMetadata()

MediaWiki\Session\Session::getProviderMetadata ( )

Fetch provider metadata.

Access:\n protected For use by SessionProvider subclasses only

Returns: mixed

Definition at line 248 of file Session.php.

◆ getRequest()

MediaWiki\Session\Session::getRequest ( )

Returns the request associated with this session.

Returns: WebRequest

Definition at line 164 of file Session.php.

◆ getSecret()

MediaWiki\Session\Session::getSecret	(	$key,
		$default = `null`
	)

Fetch a value from the session that was set with self::setSecret()

Parameters

string \| int	$key
mixed \| null	$default	Returned if $this->exists( $key ) would be false or decryption fails

Returns: mixed

Definition at line 503 of file Session.php.

References $serialized, MediaWiki\Session\Session\count(), MediaWiki\Session\Session\getEncryptionAlgorithm(), MediaWiki\Session\Session\getSecretKeys(), serialize(), and unserialize().

◆ getSecretKeys()

MediaWiki\Session\Session::getSecretKeys ( )

private

Fetch the secret keys for self::setSecret() and self::getSecret().

Returns: string[] Encryption key, HMAC key

Definition at line 394 of file Session.php.

References $wgSecretKey, $wgSessionPbkdf2Iterations, $wgSessionSecret, and MWCryptRand\generateHex().

Referenced by MediaWiki\Session\Session\getSecret(), and MediaWiki\Session\Session\setSecret().

◆ getSessionId()

MediaWiki\Session\Session::getSessionId ( )

Returns the SessionId object.

Access:\n private For internal use by WebRequest

Returns: SessionId

Definition at line 89 of file Session.php.

◆ getToken()

MediaWiki\Session\Session::getToken	(	$salt = `''`,
		$key = `'default'`
	)

Fetch a CSRF token from the session.

Note that this does not persist the session, which you'll probably want to do if you want the token to actually be useful.

Parameters

string \| string[]	$salt	Token salt
string	$key	Token key

Returns: Token

Definition at line 348 of file Session.php.

References MWCryptRand\generateHex().

◆ getUser()

MediaWiki\Session\Session::getUser ( )

Returns the authenticated user for this session.

Returns: User

Definition at line 172 of file Session.php.

◆ isPersistent()

MediaWiki\Session\Session::isPersistent ( )

Indicate whether this session is persisted across requests.

For example, if cookies are set.

Returns: bool

Definition at line 116 of file Session.php.

◆ key()

MediaWiki\Session\Session::key ( )

Definition at line 599 of file Session.php.

Referenced by MediaWiki\Session\Session\valid().

◆ next()

MediaWiki\Session\Session::next ( )

Definition at line 605 of file Session.php.

◆ offsetExists()

MediaWiki\Session\Session::offsetExists ( $offset )

Note: Despite the name, this seems to be intended to implement isset() rather than array_key_exists(). So do that.

Definition at line 627 of file Session.php.

◆ offsetGet()

& MediaWiki\Session\Session::offsetGet ( $offset )

Note: This supports indirect modifications but can't mark the session dirty when those happen. SessionBackend::save() checks the hash of the data to detect such changes.; Accessing a nonexistent key via this mechanism causes that key to be created with a null value, and does not raise a PHP warning.

Definition at line 640 of file Session.php.

◆ offsetSet()

MediaWiki\Session\Session::offsetSet	(	$offset,
		$value
	)

Definition at line 650 of file Session.php.

◆ offsetUnset()

MediaWiki\Session\Session::offsetUnset ( $offset )

Definition at line 655 of file Session.php.

◆ persist()

MediaWiki\Session\Session::persist ( )

Make this session persisted across requests.

If the session is already persistent, equivalent to calling $this->renew().

Definition at line 126 of file Session.php.

◆ remove()

MediaWiki\Session\Session::remove ( $key )

Remove a value from the session.

Parameters

string | int $key

Definition at line 330 of file Session.php.

◆ renew()

MediaWiki\Session\Session::renew ( )

Renew the session.

Resets the TTL in the backend store if the session is near expiring, and re-persists the session to any active WebRequests if persistent.

Definition at line 273 of file Session.php.

◆ resetAllTokens()

MediaWiki\Session\Session::resetAllTokens ( )

Remove all CSRF tokens from the session.

Definition at line 386 of file Session.php.

◆ resetId()

MediaWiki\Session\Session::resetId ( )

Changes the session ID.

Returns: string New ID (might be the same as the old)

Definition at line 97 of file Session.php.

◆ resetToken()

MediaWiki\Session\Session::resetToken ( $key = 'default' )

Remove a CSRF token from the session.

The next call to self::getToken() with $key will generate a new secret.

Parameters

string $key Token key

Definition at line 375 of file Session.php.

◆ rewind()

MediaWiki\Session\Session::rewind ( )

Definition at line 611 of file Session.php.

◆ save()

MediaWiki\Session\Session::save ( )

Save the session.

This will update the backend data and might re-persist the session if needed.

Definition at line 577 of file Session.php.

◆ sessionWithRequest()

MediaWiki\Session\Session::sessionWithRequest ( WebRequest $request )

Fetch a copy of this session attached to an alternative WebRequest.

Actions on the copy will affect this session too, and vice versa.

Parameters

WebRequest $request Any existing session associated with this WebRequest object will be overwritten.

Returns: Session

Definition at line 286 of file Session.php.

References WebRequest\setSessionId().

◆ set()

MediaWiki\Session\Session::set	(	$key,
		$value
	)

Set a value in the session.

Parameters

string \| int	$key
mixed	$value

Definition at line 318 of file Session.php.

◆ setForceHTTPS()

MediaWiki\Session\Session::setForceHTTPS ( $force )

Set whether HTTPS should be forced.

Parameters

bool $force

Definition at line 223 of file Session.php.

◆ setLoggedOutTimestamp()

MediaWiki\Session\Session::setLoggedOutTimestamp ( $ts )

Set the "logged out" timestamp.

Parameters

int $ts

Definition at line 239 of file Session.php.

◆ setRememberUser()

MediaWiki\Session\Session::setRememberUser ( $remember )

Set whether the user should be remembered independently of the session ID.

Parameters

bool $remember

Definition at line 156 of file Session.php.

◆ setSecret()

MediaWiki\Session\Session::setSecret	(	$key,
		$value
	)

Set a value in the session, encrypted.

This relies on the secrecy of $wgSecretKey (by default), or $wgSessionSecret.

Parameters

string \| int	$key
mixed	$value

Definition at line 461 of file Session.php.

References $serialized, MediaWiki\Session\Session\getEncryptionAlgorithm(), MediaWiki\Session\Session\getSecretKeys(), and serialize().

◆ setUser()

MediaWiki\Session\Session::setUser ( $user )

Set a new user for this session.

Note: This should only be called when the user has been authenticated

Parameters

User $user User to set on the session. This may become a "UserValue" in the future, or User may be refactored into such.

Definition at line 199 of file Session.php.

◆ shouldForceHTTPS()

MediaWiki\Session\Session::shouldForceHTTPS ( )

Whether HTTPS should be forced.

Returns: bool

Definition at line 215 of file Session.php.

◆ shouldRememberUser()

MediaWiki\Session\Session::shouldRememberUser ( )

Indicate whether the user should be remembered independently of the session ID.

Returns: bool

Definition at line 147 of file Session.php.

◆ suggestLoginUsername()

MediaWiki\Session\Session::suggestLoginUsername ( )

Get a suggested username for the login form.

Returns: string|null

Definition at line 207 of file Session.php.

◆ unpersist()

MediaWiki\Session\Session::unpersist ( )

Make this session not be persisted across requests.

This will remove persistence information (e.g. delete cookies) from the associated WebRequest(s), and delete session data in the backend. The session data will still be available via get() until the end of the request.

Definition at line 138 of file Session.php.

◆ valid()

MediaWiki\Session\Session::valid ( )

Definition at line 617 of file Session.php.

References MediaWiki\Session\Session\key().

Member Data Documentation

◆ $backend

SessionBackend MediaWiki\Session\Session::$backend

private

Session backend.

Definition at line 53 of file Session.php.

Referenced by MediaWiki\Session\Session\__construct().

◆ $encryptionAlgorithm

null string [] MediaWiki\Session\Session::$encryptionAlgorithm = null

staticprivate

Encryption algorithm to use.

Definition at line 50 of file Session.php.

Referenced by MediaWiki\Session\Session\getEncryptionAlgorithm().

◆ $index

int MediaWiki\Session\Session::$index

private

Session index.

Definition at line 56 of file Session.php.

Referenced by MediaWiki\Session\Session\__construct().

◆ $logger

LoggerInterface MediaWiki\Session\Session::$logger

private

Definition at line 59 of file Session.php.

Referenced by MediaWiki\Session\Session\__construct().

The documentation for this class was generated from the following file:

includes/session/Session.php

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

◆ __destruct()

Member Function Documentation

◆ canSetUser()

◆ clear()

◆ count()

◆ current()

◆ delaySave()

◆ exists()

◆ get()

◆ getAllowedUserRights()

◆ getEncryptionAlgorithm()

◆ getId()

◆ getLoggedOutTimestamp()

◆ getProvider()

◆ getProviderMetadata()

◆ getRequest()

◆ getSecret()

◆ getSecretKeys()

◆ getSessionId()

◆ getToken()

◆ getUser()

◆ isPersistent()

◆ key()

◆ next()

◆ offsetExists()

◆ offsetGet()

◆ offsetSet()

◆ offsetUnset()

◆ persist()

◆ remove()

◆ renew()

◆ resetAllTokens()

◆ resetId()

◆ resetToken()

◆ rewind()

◆ save()

◆ sessionWithRequest()

◆ set()

◆ setForceHTTPS()

◆ setLoggedOutTimestamp()

◆ setRememberUser()

◆ setSecret()

◆ setUser()

◆ shouldForceHTTPS()

◆ shouldRememberUser()

◆ suggestLoginUsername()

◆ unpersist()

◆ valid()

Member Data Documentation

◆ $backend

◆ $encryptionAlgorithm

◆ $index

◆ $logger