Class luya\web\GroupUser

Inheritanceluya\web\GroupUser » yii\web\User » yii\base\Component » yii\base\BaseObject
Implementsyii\base\Configurable
Available since version1.0.0

Group User Component.

User class to login based on {{yii\web\User}}, but allows you to check whether a user is in this group or not.

The {{luya\web\GroupUserIdentityInterface}} Interface must be implemented by the User Model used in {{yii\web\User::$identityClass}}.

Assume we have made 3 groups:

  • group-a
  • group-b
  • group-c

And we assume we have different users login forms which have access only to the defined groups.

class app\UserCustomers implements GroupUserIdentityInterface
{
    public function getGroups()
    {
        return ['group-a', 'group-c'];
    }
}
class app\UserCompanys implements GroupUserIdentityInterface
{
    public function getGroups()
    {
        return ['group-b'];
    }
}

Lets perform the login on the IdentiyInterface base:

Yii::$app->user->login(\app\UserCompanys);

Lets say the validation of the UserCompanys was successfull based on the validation rules of the same class (IdentityInterface). Now we can quickly check if the the user is allowed in the current group:

if (Yii::$app->user->inGroup('group-b')) {
    // this user can see those parts of the Website.
}

THE BELOW CODE REQUIRES IMPLEMENTATIONS FIRST AND IS STILL PART OF THE CONCEPT!

The above usecase is very straight forward in templates, a more common scenario are the useaccess of access restricting filters. The below example will show how action1 and action2 will have seperate allowed groups. while action3 can be access as guest. If there is no gues defined all actions which are not in the allowed list for the groups are denied automatically.

public function behaviors()
{
    return [
        'access' => [
            'class' => 'authadmin\filters\GroupAuth',
            'allow' => [
                'action1' => ['group-b'],
                'action2' => ['group-a', 'group-c'],
             ],
             'guest' => ['action3'],
        ],
    ];
}

Another use case is to make sure some files are only by access by the allowed group, for this scenario. Therefore you can assign groups to a file which will be allowed to download/see this file. To make sure the defined group can acces the file is a global event which happens before file download, as the bootstrap proccess of luya modules can particpate on.

public function init()
{
    parent::init();
    Yii::$app->on(Admin::EVENT_BEFORE_FILE_DOWNLOAD, [$this, 'verifyUserGroup']);
}

public function verifyUserGroup($event)
{
    $event->isValid = (!$event->hasPermissions() || Yii::$app->user->inGroup($event->getFileGroups()));
}

Public Properties

Hide inherited properties

Property Type Description Defined By
$absoluteAuthTimeout integer|null The number of seconds in which the user will be logged out automatically regardless of activity. yii\web\User
$absoluteAuthTimeoutParam string The session variable name used to store the value of absolute expiration timestamp of the authenticated state. yii\web\User
$acceptableRedirectTypes array MIME types for which this component should redirect to the $loginUrl. yii\web\User
$accessChecker yii\rbac\CheckAccessInterface|string|array|null The access checker object to use for checking access or the application component ID of the access checker. yii\web\User
$authKeyParam string The session variable name used to store authentication key. yii\web\User
$authTimeout integer|null The number of seconds in which the user will be logged out automatically if the user remains inactive. yii\web\User
$authTimeoutParam string The session variable name used to store the value of expiration timestamp of the authenticated state. yii\web\User
$autoRenewCookie boolean Whether to automatically renew the identity cookie each time a page is requested. yii\web\User
$behaviors yii\base\Behavior[] List of behaviors attached to this component. yii\base\Component
$enableAutoLogin boolean Whether to enable cookie-based login. yii\web\User
$enableSession boolean Whether to use session to persist authentication status across multiple requests. yii\web\User
$id string|integer|null The unique identifier for the user. yii\web\User
$idParam string The session variable name used to store the value of $id. yii\web\User
$identity yii\web\IdentityInterface|null The identity object associated with the currently logged-in user. yii\web\User
$identityClass string The class name of the $identity object. yii\web\User
$identityCookie array The configuration of the identity cookie. yii\web\User
$isGuest boolean Whether the current user is a guest. yii\web\User
$loginUrl string|array|null The URL for login when loginRequired() is called. yii\web\User
$returnUrl string The URL that the user should be redirected to after login. yii\web\User
$returnUrlParam string The session variable name used to store the value of $returnUrl. yii\web\User

Public Methods

Hide inherited methods

Method Description Defined By
__call() Calls the named method which is not a class method. yii\base\Component
__clone() This method is called after the object is created by cloning an existing one. yii\base\Component
__construct() Constructor. yii\base\BaseObject
__get() Returns the value of a component property. yii\base\Component
__isset() Checks if a property is set, i.e. defined and not null. yii\base\Component
__set() Sets the value of a component property. yii\base\Component
__unset() Sets a component property to be null. yii\base\Component
attachBehavior() Attaches a behavior to this component. yii\base\Component
attachBehaviors() Attaches a list of behaviors to the component. yii\base\Component
behaviors() Returns a list of behaviors that this component should behave as. yii\base\Component
can() Checks if the user can perform the operation as specified by the given permission. yii\web\User
canGetProperty() Returns a value indicating whether a property can be read. yii\base\Component
canSetProperty() Returns a value indicating whether a property can be set. yii\base\Component
checkRedirectAcceptable() Checks if the Accept header contains a content type that allows redirection to the login page. yii\web\User
className() Returns the fully qualified name of this class. yii\base\BaseObject
detachBehavior() Detaches a behavior from the component. yii\base\Component
detachBehaviors() Detaches all behaviors from the component. yii\base\Component
ensureBehaviors() Makes sure that the behaviors declared in behaviors() are attached to this component. yii\base\Component
getBehavior() Returns the named behavior object. yii\base\Component
getBehaviors() Returns all behaviors attached to this component. yii\base\Component
getId() Returns a value that uniquely represents the user. yii\web\User
getIdentity() Returns the identity object associated with the currently logged-in user. yii\web\User
getIsGuest() Returns a value indicating whether the user is a guest (not authenticated). yii\web\User
getReturnUrl() Returns the URL that the browser should be redirected to after successful login. yii\web\User
hasEventHandlers() Returns a value indicating whether there is any handler attached to the named event. yii\base\Component
hasMethod() Returns a value indicating whether a method is defined. yii\base\Component
hasProperty() Returns a value indicating whether a property is defined for this component. yii\base\Component
inGroup() Checks whether a user exists for the provided group based on the GroupUserIdentityInterface implementation luya\web\GroupUser
init() Initializes the application component. yii\web\User
login() Logs in a user. yii\web\User
loginByAccessToken() Logs in a user by the given access token. yii\web\User
loginRequired() Redirects the user browser to the login page. yii\web\User
logout() Logs out the current user. yii\web\User
off() Detaches an existing event handler from this component. yii\base\Component
on() Attaches an event handler to an event. yii\base\Component
setIdentity() Sets the user identity object. yii\web\User
setReturnUrl() Remembers the URL in the session so that it can be retrieved back later by getReturnUrl(). yii\web\User
switchIdentity() Switches to a new identity for the current user. yii\web\User
trigger() Triggers an event. yii\base\Component

Protected Methods

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Method Description Defined By
afterLogin() This method is called after the user is successfully logged in. yii\web\User
afterLogout() This method is invoked right after a user is logged out via logout(). yii\web\User
beforeLogin() This method is called before logging in a user. yii\web\User
beforeLogout() This method is invoked when calling logout() to log out a user. yii\web\User
getAccessChecker() Returns the access checker used for checking access. yii\web\User
getAuthManager() Returns auth manager associated with the user component. yii\web\User
getIdentityAndDurationFromCookie() Determines if an identity cookie has a valid format and contains a valid auth key. yii\web\User
loginByCookie() Logs in a user by cookie. yii\web\User
regenerateCsrfToken() Regenerates CSRF token yii\web\User
removeIdentityCookie() Removes the identity cookie. yii\web\User
renewAuthStatus() Updates the authentication status using the information from session and cookie. yii\web\User
renewIdentityCookie() Renews the identity cookie. yii\web\User
sendIdentityCookie() Sends an identity cookie. yii\web\User

Constants

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Constant Value Description Defined By
EVENT_AFTER_LOGIN 'afterLogin' yii\web\User
EVENT_AFTER_LOGOUT 'afterLogout' yii\web\User
EVENT_BEFORE_LOGIN 'beforeLogin' yii\web\User
EVENT_BEFORE_LOGOUT 'beforeLogout' yii\web\User

Method Details

Hide inherited methods

__call() public method

Defined in: yii\base\Component::__call()

Calls the named method which is not a class method.

This method will check if any attached behavior has the named method and will execute it if available.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

public mixed __call ( $name, $params )
$name string

The method name

$params array

Method parameters

return mixed

The method return value

throws yii\base\UnknownMethodException

when calling unknown method

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            
__clone() public method

Defined in: yii\base\Component::__clone()

This method is called after the object is created by cloning an existing one.

It removes all behaviors because they are attached to the old object.

public void __clone ( )

                public function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

            
__construct() public method

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

  • Initializes the object with the given configuration $config.
  • Call init().

If this method is overridden in a child class, it is recommended that

  • the last parameter of the constructor is a configuration array, like $config here.
  • call the parent implementation at the end of the constructor.
public void __construct ( $config = [] )
$config array

Name-value pairs that will be used to initialize the object properties

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

            
__get() public method

Defined in: yii\base\Component::__get()

Returns the value of a component property.

This method will check in the following order and act accordingly:

  • a property defined by a getter: return the getter result
  • a property of a behavior: return the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $component->property;.

See also __set().

public mixed __get ( $name )
$name string

The property name

return mixed

The property value or the value of a behavior's property

throws yii\base\UnknownPropertyException

if the property is not defined

throws yii\base\InvalidCallException

if the property is write-only.

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        // read property, e.g. getName()
        return $this->$getter();
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name;
        }
    }
    if (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}

            
__isset() public method

Defined in: yii\base\Component::__isset()

Checks if a property is set, i.e. defined and not null.

This method will check in the following order and act accordingly:

  • a property defined by a setter: return whether the property is set
  • a property of a behavior: return whether the property is set
  • return false for non existing properties

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($component->property).

See also https://www.php.net/manual/en/function.isset.php.

public boolean __isset ( $name )
$name string

The property name or the event name

return boolean

Whether the named property is set

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name !== null;
        }
    }
    return false;
}

            
__set() public method

Defined in: yii\base\Component::__set()

Sets the value of a component property.

This method will check in the following order and act accordingly:

  • a property defined by a setter: set the property value
  • an event in the format of "on xyz": attach the handler to the event "xyz"
  • a behavior in the format of "as xyz": attach the behavior named as "xyz"
  • a property of a behavior: set the behavior property value

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $component->property = $value;.

See also __get().

public void __set ( $name, $value )
$name string

The property name or the event name

$value mixed

The property value

throws yii\base\UnknownPropertyException

if the property is not defined

throws yii\base\InvalidCallException

if the property is read-only.

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        // set property
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        // on event: attach event handler
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        // as behavior: attach behavior
        $name = trim(substr($name, 3));
        $this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = $value;
            return;
        }
    }
    if (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}

            
__unset() public method

Defined in: yii\base\Component::__unset()

Sets a component property to be null.

This method will check in the following order and act accordingly:

  • a property defined by a setter: set the property value to be null
  • a property of a behavior: set the property value to be null

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($component->property).

See also https://www.php.net/manual/en/function.unset.php.

public void __unset ( $name )
$name string

The property name

throws yii\base\InvalidCallException

if the property is read only.

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = null;
            return;
        }
    }
    throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}

            
afterLogin() protected method

Defined in: yii\web\User::afterLogin()

This method is called after the user is successfully logged in.

The default implementation will trigger the EVENT_AFTER_LOGIN event. If you override this method, make sure you call the parent implementation so that the event is triggered.

protected void afterLogin ( $identity, $cookieBased, $duration )
$identity yii\web\IdentityInterface

The user identity information

$cookieBased boolean

Whether the login is cookie-based

$duration integer

Number of seconds that the user can remain in logged-in status. If 0, it means login till the user closes the browser or the session is manually destroyed.

                protected function afterLogin($identity, $cookieBased, $duration)
{
    $this->trigger(self::EVENT_AFTER_LOGIN, new UserEvent([
        'identity' => $identity,
        'cookieBased' => $cookieBased,
        'duration' => $duration,
    ]));
}

            
afterLogout() protected method

Defined in: yii\web\User::afterLogout()

This method is invoked right after a user is logged out via logout().

The default implementation will trigger the EVENT_AFTER_LOGOUT event. If you override this method, make sure you call the parent implementation so that the event is triggered.

protected void afterLogout ( $identity )
$identity yii\web\IdentityInterface

The user identity information

                protected function afterLogout($identity)
{
    $this->trigger(self::EVENT_AFTER_LOGOUT, new UserEvent([
        'identity' => $identity,
    ]));
}

            
attachBehavior() public method

Defined in: yii\base\Component::attachBehavior()

Attaches a behavior to this component.

This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the yii\base\Behavior::attach() method.

See also detachBehavior().

public yii\base\Behavior attachBehavior ( $name, $behavior )
$name string

The name of the behavior.

$behavior string|array|yii\base\Behavior

The behavior configuration. This can be one of the following:

return yii\base\Behavior

The behavior object

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            
attachBehaviors() public method

Defined in: yii\base\Component::attachBehaviors()

Attaches a list of behaviors to the component.

Each behavior is indexed by its name and should be a yii\base\Behavior object, a string specifying the behavior class, or an configuration array for creating the behavior.

See also attachBehavior().

public void attachBehaviors ( $behaviors )
$behaviors array

List of behaviors to be attached to the component

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            
beforeLogin() protected method

Defined in: yii\web\User::beforeLogin()

This method is called before logging in a user.

The default implementation will trigger the EVENT_BEFORE_LOGIN event. If you override this method, make sure you call the parent implementation so that the event is triggered.

protected boolean beforeLogin ( $identity, $cookieBased, $duration )
$identity yii\web\IdentityInterface

The user identity information

$cookieBased boolean

Whether the login is cookie-based

$duration integer

Number of seconds that the user can remain in logged-in status. If 0, it means login till the user closes the browser or the session is manually destroyed.

return boolean

Whether the user should continue to be logged in

                protected function beforeLogin($identity, $cookieBased, $duration)
{
    $event = new UserEvent([
        'identity' => $identity,
        'cookieBased' => $cookieBased,
        'duration' => $duration,
    ]);
    $this->trigger(self::EVENT_BEFORE_LOGIN, $event);
    return $event->isValid;
}

            
beforeLogout() protected method

Defined in: yii\web\User::beforeLogout()

This method is invoked when calling logout() to log out a user.

The default implementation will trigger the EVENT_BEFORE_LOGOUT event. If you override this method, make sure you call the parent implementation so that the event is triggered.

protected boolean beforeLogout ( $identity )
$identity yii\web\IdentityInterface

The user identity information

return boolean

Whether the user should continue to be logged out

                protected function beforeLogout($identity)
{
    $event = new UserEvent([
        'identity' => $identity,
    ]);
    $this->trigger(self::EVENT_BEFORE_LOGOUT, $event);
    return $event->isValid;
}

            
behaviors() public method

Defined in: yii\base\Component::behaviors()

Returns a list of behaviors that this component should behave as.

Child classes may override this method to specify the behaviors they want to behave as.

The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:

'behaviorName' => [
    'class' => 'BehaviorClass',
    'property1' => 'value1',
    'property2' => 'value2',
]

Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.

Behaviors declared in this method will be attached to the component automatically (on demand).

public array behaviors ( )
return array

The behavior configurations.

                public function behaviors()
{
    return [];
}

            
can() public method

Defined in: yii\web\User::can()

Checks if the user can perform the operation as specified by the given permission.

Note that you must configure "authManager" application component in order to use this method. Otherwise it will always return false.

public boolean can ( $permissionName, $params = [], $allowCaching true )
$permissionName string

The name of the permission (e.g. "edit post") that needs access check.

$params array

Name-value pairs that would be passed to the rules associated with the roles and permissions assigned to the user.

$allowCaching boolean

Whether to allow caching the result of access check. When this parameter is true (default), if the access check of an operation was performed before, its result will be directly returned when calling this method to check the same operation. If this parameter is false, this method will always call yii\rbac\CheckAccessInterface::checkAccess() to obtain the up-to-date access result. Note that this caching is effective only within the same request and only works when $params = [].

return boolean

Whether the user can perform the operation as specified by the given permission.

                public function can($permissionName, $params = [], $allowCaching = true)
{
    if ($allowCaching && empty($params) && isset($this->_access[$permissionName])) {
        return $this->_access[$permissionName];
    }
    if (($accessChecker = $this->getAccessChecker()) === null) {
        return false;
    }
    $access = $accessChecker->checkAccess($this->getId(), $permissionName, $params);
    if ($allowCaching && empty($params)) {
        $this->_access[$permissionName] = $access;
    }
    return $access;
}

            
canGetProperty() public method

Defined in: yii\base\Component::canGetProperty()

Returns a value indicating whether a property can be read.

A property can be read if:

  • the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a readable property of the given name (when $checkBehaviors is true).

See also canSetProperty().

public boolean canGetProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property can be read

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            
canSetProperty() public method

Defined in: yii\base\Component::canSetProperty()

Returns a value indicating whether a property can be set.

A property can be written if:

  • the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a writable property of the given name (when $checkBehaviors is true).

See also canGetProperty().

public boolean canSetProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property can be written

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canSetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            
checkRedirectAcceptable() public method (available since version 2.0.8)

Defined in: yii\web\User::checkRedirectAcceptable()

Checks if the Accept header contains a content type that allows redirection to the login page.

The login page is assumed to serve text/html or application/xhtml+xml by default. You can change acceptable content types by modifying $acceptableRedirectTypes property.

See also $acceptableRedirectTypes.

public boolean checkRedirectAcceptable ( )
return boolean

Whether this request may be redirected to the login page.

                public function checkRedirectAcceptable()
{
    $acceptableTypes = Yii::$app->getRequest()->getAcceptableContentTypes();
    if (empty($acceptableTypes) || (count($acceptableTypes) === 1 && array_keys($acceptableTypes)[0] === '*/*')) {
        return true;
    }
    foreach ($acceptableTypes as $type => $params) {
        if (in_array($type, $this->acceptableRedirectTypes, true)) {
            return true;
        }
    }
    return false;
}

            
className() public static method
Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

Defined in: yii\base\BaseObject::className()

Returns the fully qualified name of this class.

public static string className ( )
return string

The fully qualified name of this class.

                public static function className()
{
    return get_called_class();
}

            
detachBehavior() public method

Defined in: yii\base\Component::detachBehavior()

Detaches a behavior from the component.

The behavior's yii\base\Behavior::detach() method will be invoked.

public yii\base\Behavior|null detachBehavior ( $name )
$name string

The behavior's name.

return yii\base\Behavior|null

The detached behavior. Null if the behavior does not exist.

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            
detachBehaviors() public method

Defined in: yii\base\Component::detachBehaviors()

Detaches all behaviors from the component.

public void detachBehaviors ( )

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            
ensureBehaviors() public method

Defined in: yii\base\Component::ensureBehaviors()

Makes sure that the behaviors declared in behaviors() are attached to this component.

public void ensureBehaviors ( )

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            
getAccessChecker() protected method (available since version 2.0.9)

Defined in: yii\web\User::getAccessChecker()

Returns the access checker used for checking access.

protected yii\rbac\CheckAccessInterface getAccessChecker ( )

                protected function getAccessChecker()
{
    return $this->accessChecker !== null ? $this->accessChecker : $this->getAuthManager();
}

            
getAuthManager() protected method (available since version 2.0.6)
Deprecated since version 2.0.9, to be removed in 2.1. Use getAccessChecker() instead.

Defined in: yii\web\User::getAuthManager()

Returns auth manager associated with the user component.

By default this is the authManager application component. You may override this method to return a different auth manager instance if needed.

protected yii\rbac\ManagerInterface getAuthManager ( )

                protected function getAuthManager()
{
    return Yii::$app->getAuthManager();
}

            
getBehavior() public method

Defined in: yii\base\Component::getBehavior()

Returns the named behavior object.

public yii\base\Behavior|null getBehavior ( $name )
$name string

The behavior name

return yii\base\Behavior|null

The behavior object, or null if the behavior does not exist

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            
getBehaviors() public method

Defined in: yii\base\Component::getBehaviors()

Returns all behaviors attached to this component.

public yii\base\Behavior[] getBehaviors ( )
return yii\base\Behavior[]

List of behaviors attached to this component

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            
getId() public method

Defined in: yii\web\User::getId()

Returns a value that uniquely represents the user.

See also getIdentity().

public string|integer|null getId ( )
return string|integer|null

The unique identifier for the user. If null, it means the user is a guest.

                public function getId()
{
    $identity = $this->getIdentity();
    return $identity !== null ? $identity->getId() : null;
}

            
getIdentity() public method

Defined in: yii\web\User::getIdentity()

Returns the identity object associated with the currently logged-in user.

When $enableSession is true, this method may attempt to read the user's authentication data stored in session and reconstruct the corresponding identity object, if it has not done so before.

See also:

public yii\web\IdentityInterface|null getIdentity ( $autoRenew true )
$autoRenew boolean

Whether to automatically renew authentication status if it has not been done so before. This is only useful when $enableSession is true.

return yii\web\IdentityInterface|null

The identity object associated with the currently logged-in user. null is returned if the user is not logged in (not authenticated).

                public function getIdentity($autoRenew = true)
{
    if ($this->_identity === false) {
        if ($this->enableSession && $autoRenew) {
            try {
                $this->_identity = null;
                $this->renewAuthStatus();
            } catch (\Exception $e) {
                $this->_identity = false;
                throw $e;
            } catch (\Throwable $e) {
                $this->_identity = false;
                throw $e;
            }
        } else {
            return null;
        }
    }
    return $this->_identity;
}

            
getIdentityAndDurationFromCookie() protected method (available since version 2.0.9)

Defined in: yii\web\User::getIdentityAndDurationFromCookie()

Determines if an identity cookie has a valid format and contains a valid auth key.

This method is used when $enableAutoLogin is true. This method attempts to authenticate a user using the information in the identity cookie.

See also loginByCookie().

protected array|null getIdentityAndDurationFromCookie ( )
return array|null

Returns an array of 'identity' and 'duration' if valid, otherwise null.

                protected function getIdentityAndDurationFromCookie()
{
    $value = Yii::$app->getRequest()->getCookies()->getValue($this->identityCookie['name']);
    if ($value === null) {
        return null;
    }
    $data = json_decode($value, true);
    if (is_array($data) && count($data) == 3) {
        list($id, $authKey, $duration) = $data;
        /* @var $class IdentityInterface */
        $class = $this->identityClass;
        $identity = $class::findIdentity($id);
        if ($identity !== null) {
            if (!$identity instanceof IdentityInterface) {
                throw new InvalidValueException("$class::findIdentity() must return an object implementing IdentityInterface.");
            } elseif (!$identity->validateAuthKey($authKey)) {
                $ip = Yii::$app->getRequest()->getUserIP();
                Yii::warning("Invalid cookie auth key attempted for user '$id' from $ip: $authKey", __METHOD__);
            } else {
                return ['identity' => $identity, 'duration' => $duration];
            }
        }
    }
    $this->removeIdentityCookie();
    return null;
}

            
getIsGuest() public method

Defined in: yii\web\User::getIsGuest()

Returns a value indicating whether the user is a guest (not authenticated).

See also getIdentity().

public boolean getIsGuest ( )
return boolean

Whether the current user is a guest.

                public function getIsGuest()
{
    return $this->getIdentity() === null;
}

            
getReturnUrl() public method

Defined in: yii\web\User::getReturnUrl()

Returns the URL that the browser should be redirected to after successful login.

This method reads the return URL from the session. It is usually used by the login action which may call this method to redirect the browser to where it goes after successful authentication.

See also loginRequired().

public string getReturnUrl ( $defaultUrl null )
$defaultUrl string|array|null

The default return URL in case it was not set previously. If this is null and the return URL was not set previously, yii\web\Application::$homeUrl will be redirected to. Please refer to setReturnUrl() on accepted format of the URL.

return string

The URL that the user should be redirected to after login.

                public function getReturnUrl($defaultUrl = null)
{
    $url = Yii::$app->getSession()->get($this->returnUrlParam, $defaultUrl);
    if (is_array($url)) {
        if (isset($url[0])) {
            return Yii::$app->getUrlManager()->createUrl($url);
        }
        $url = null;
    }
    return $url === null ? Yii::$app->getHomeUrl() : $url;
}

            
hasEventHandlers() public method

Defined in: yii\base\Component::hasEventHandlers()

Returns a value indicating whether there is any handler attached to the named event.

public boolean hasEventHandlers ( $name )
$name string

The event name

return boolean

Whether there is any handler attached to the event.

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            
hasMethod() public method

Defined in: yii\base\Component::hasMethod()

Returns a value indicating whether a method is defined.

A method is defined if:

  • the class has a method with the specified name
  • an attached behavior has a method with the given name (when $checkBehaviors is true).
public boolean hasMethod ( $name, $checkBehaviors true )
$name string

The property name

$checkBehaviors boolean

Whether to treat behaviors' methods as methods of this component

return boolean

Whether the method is defined

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            
hasProperty() public method

Defined in: yii\base\Component::hasProperty()

Returns a value indicating whether a property is defined for this component.

A property is defined if:

  • the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a property of the given name (when $checkBehaviors is true).

See also:

public boolean hasProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property is defined

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            
inGroup() public method

Checks whether a user exists for the provided group based on the GroupUserIdentityInterface implementation

public boolean inGroup ( $alias )
$alias string|array
throws yii\base\InvalidConfigException

                public function inGroup($alias)
{
    if ($this->isGuest) {
        return false;
    }
    
    $identity = $this->identity;
    
    if (!$identity instanceof GroupUserIdentityInterface) {
        throw new InvalidConfigException('The $identityClass must be instance of luya\web\GroupUserIdentityInterface.');
    }
    
    
    $groups = (array) $alias;
    foreach ($groups as $groupAlias) {
        if (in_array($groupAlias, $identity->authGroups())) {
            return true;
        }
    }
    
    return false;
}

            
init() public method

Defined in: yii\web\User::init()

Initializes the application component.

public void init ( )

                public function init()
{
    parent::init();
    if ($this->identityClass === null) {
        throw new InvalidConfigException('User::identityClass must be set.');
    }
    if ($this->enableAutoLogin && !isset($this->identityCookie['name'])) {
        throw new InvalidConfigException('User::identityCookie must contain the "name" element.');
    }
    if ($this->accessChecker !== null) {
        $this->accessChecker = Instance::ensure($this->accessChecker, '\yii\rbac\CheckAccessInterface');
    }
}

            
login() public method

Defined in: yii\web\User::login()

Logs in a user.

After logging in a user:

  • the user's identity information is obtainable from the $identity property

If $enableSession is true:

  • the identity information will be stored in session and be available in the next requests
  • in case of $duration == 0: as long as the session remains active or till the user closes the browser
  • in case of $duration > 0: as long as the session remains active or as long as the cookie remains valid by it's $duration in seconds when $enableAutoLogin is set true.

If $enableSession is false:

  • the $duration parameter will be ignored
public boolean login ( yii\web\IdentityInterface $identity, $duration 0 )
$identity yii\web\IdentityInterface

The user identity (which should already be authenticated)

$duration integer

Number of seconds that the user can remain in logged-in status, defaults to 0

return boolean

Whether the user is logged in

                public function login(IdentityInterface $identity, $duration = 0)
{
    if ($this->beforeLogin($identity, false, $duration)) {
        $this->switchIdentity($identity, $duration);
        $id = $identity->getId();
        $ip = Yii::$app->getRequest()->getUserIP();
        if ($this->enableSession) {
            $log = "User '$id' logged in from $ip with duration $duration.";
        } else {
            $log = "User '$id' logged in from $ip. Session not enabled.";
        }
        $this->regenerateCsrfToken();
        Yii::info($log, __METHOD__);
        $this->afterLogin($identity, false, $duration);
    }
    return !$this->getIsGuest();
}

            
loginByAccessToken() public method

Defined in: yii\web\User::loginByAccessToken()

Logs in a user by the given access token.

This method will first authenticate the user by calling yii\web\IdentityInterface::findIdentityByAccessToken() with the provided access token. If successful, it will call login() to log in the authenticated user. If authentication fails or login() is unsuccessful, it will return null.

public yii\web\IdentityInterface|null loginByAccessToken ( $token, $type null )
$token string

The access token

$type mixed

The type of the token. The value of this parameter depends on the implementation. For example, yii\filters\auth\HttpBearerAuth will set this parameter to be yii\filters\auth\HttpBearerAuth.

return yii\web\IdentityInterface|null

The identity associated with the given access token. Null is returned if the access token is invalid or login() is unsuccessful.

                public function loginByAccessToken($token, $type = null)
{
    /* @var $class IdentityInterface */
    $class = $this->identityClass;
    $identity = $class::findIdentityByAccessToken($token, $type);
    if ($identity && $this->login($identity)) {
        return $identity;
    }
    return null;
}

            
loginByCookie() protected method

Defined in: yii\web\User::loginByCookie()

Logs in a user by cookie.

This method attempts to log in a user using the ID and authKey information provided by the identity cookie.

protected void loginByCookie ( )

                protected function loginByCookie()
{
    $data = $this->getIdentityAndDurationFromCookie();
    if (isset($data['identity'], $data['duration'])) {
        $identity = $data['identity'];
        $duration = $data['duration'];
        if ($this->beforeLogin($identity, true, $duration)) {
            $this->switchIdentity($identity, $this->autoRenewCookie ? $duration : 0);
            $id = $identity->getId();
            $ip = Yii::$app->getRequest()->getUserIP();
            Yii::info("User '$id' logged in from $ip via cookie.", __METHOD__);
            $this->afterLogin($identity, true, $duration);
        }
    }
}

            
loginRequired() public method

Defined in: yii\web\User::loginRequired()

Redirects the user browser to the login page.

Before the redirection, the current URL (if it's not an AJAX url) will be kept as $returnUrl so that the user browser may be redirected back to the current page after successful login.

Make sure you set $loginUrl so that the user browser can be redirected to the specified login URL after calling this method.

Note that when $loginUrl is set, calling this method will NOT terminate the application execution.

public yii\web\Response loginRequired ( $checkAjax true, $checkAcceptHeader true )
$checkAjax boolean

Whether to check if the request is an AJAX request. When this is true and the request is an AJAX request, the current URL (for AJAX request) will NOT be set as the return URL.

$checkAcceptHeader boolean

Whether to check if the request accepts HTML responses. Defaults to true. When this is true and the request does not accept HTML responses the current URL will not be SET as the return URL. Also instead of redirecting the user an ForbiddenHttpException is thrown. This parameter is available since version 2.0.8.

return yii\web\Response

The redirection response if $loginUrl is set

throws yii\web\ForbiddenHttpException

the "Access Denied" HTTP exception if $loginUrl is not set or a redirect is not applicable.

                public function loginRequired($checkAjax = true, $checkAcceptHeader = true)
{
    $request = Yii::$app->getRequest();
    $canRedirect = !$checkAcceptHeader || $this->checkRedirectAcceptable();
    if ($this->enableSession
        && $request->getIsGet()
        && (!$checkAjax || !$request->getIsAjax())
        && $canRedirect
    ) {
        $this->setReturnUrl($request->getAbsoluteUrl());
    }
    if ($this->loginUrl !== null && $canRedirect) {
        $loginUrl = (array) $this->loginUrl;
        if ($loginUrl[0] !== Yii::$app->requestedRoute) {
            return Yii::$app->getResponse()->redirect($this->loginUrl);
        }
    }
    throw new ForbiddenHttpException(Yii::t('yii', 'Login Required'));
}

            
logout() public method

Defined in: yii\web\User::logout()

Logs out the current user.

This will remove authentication-related session data. If $destroySession is true, all session data will be removed.

public boolean logout ( $destroySession true )
$destroySession boolean

Whether to destroy the whole session. Defaults to true. This parameter is ignored if $enableSession is false.

return boolean

Whether the user is logged out

                public function logout($destroySession = true)
{
    $identity = $this->getIdentity();
    if ($identity !== null && $this->beforeLogout($identity)) {
        $this->switchIdentity(null);
        $id = $identity->getId();
        $ip = Yii::$app->getRequest()->getUserIP();
        Yii::info("User '$id' logged out from $ip.", __METHOD__);
        if ($destroySession && $this->enableSession) {
            Yii::$app->getSession()->destroy();
        }
        $this->afterLogout($identity);
    }
    return $this->getIsGuest();
}

            
off() public method

Defined in: yii\base\Component::off()

Detaches an existing event handler from this component.

This method is the opposite of on().

Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.

See also on().

public boolean off ( $name, $handler null )
$name string

Event name

$handler callable|null

The event handler to be removed. If it is null, all handlers attached to the named event will be removed.

return boolean

If a handler is found and detached

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    // plain event names
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    // wildcard event names
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            // remove empty wildcards to save future redundant regex checks:
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            
on() public method

Defined in: yii\base\Component::on()

Attaches an event handler to an event.

The event handler must be a valid PHP callback. The following are some examples:

function ($event) { ... }         // anonymous function
[$object, 'handleClick']          // $object->handleClick()
['Page', 'handleClick']           // Page::handleClick()
'handleClick'                     // global function handleClick()

The event handler must be defined with the following signature,

function ($event)

where $event is an yii\base\Event object which includes parameters associated with the event.

Since 2.0.14 you can specify event name as a wildcard pattern:

$component->on('event.group.*', function ($event) {
    Yii::trace($event->name . ' is triggered.');
});

See also off().

public void on ( $name, $handler, $data null, $append true )
$name string

The event name

$handler callable

The event handler

$data mixed

The data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data.

$append boolean

Whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list.

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            
regenerateCsrfToken() protected method (available since version 2.0.14.2)

Defined in: yii\web\User::regenerateCsrfToken()

Regenerates CSRF token

protected void regenerateCsrfToken ( )

                protected function regenerateCsrfToken()
{
    $request = Yii::$app->getRequest();
    if ($request->enableCsrfCookie || $this->enableSession) {
        $request->getCsrfToken(true);
    }
}

            
removeIdentityCookie() protected method (available since version 2.0.9)

Defined in: yii\web\User::removeIdentityCookie()

Removes the identity cookie.

This method is used when $enableAutoLogin is true.

protected void removeIdentityCookie ( )

                protected function removeIdentityCookie()
{
    Yii::$app->getResponse()->getCookies()->remove(Yii::createObject(array_merge($this->identityCookie, [
        'class' => 'yii\web\Cookie',
    ])));
}

            
renewAuthStatus() protected method

Defined in: yii\web\User::renewAuthStatus()

Updates the authentication status using the information from session and cookie.

This method will try to determine the user identity using the $idParam session variable.

If $authTimeout is set, this method will refresh the timer.

If the user identity cannot be determined by session, this method will try to login by cookie if $enableAutoLogin is true.

protected void renewAuthStatus ( )

                protected function renewAuthStatus()
{
    $session = Yii::$app->getSession();
    $id = $session->getHasSessionId() || $session->getIsActive() ? $session->get($this->idParam) : null;
    if ($id === null) {
        $identity = null;
    } else {
        /* @var $class IdentityInterface */
        $class = $this->identityClass;
        $identity = $class::findIdentity($id);
        if ($identity === null) {
            $this->switchIdentity(null);
        }
    }
    if ($identity !== null) {
        $authKey = $session->get($this->authKeyParam);
        if ($authKey !== null && !$identity->validateAuthKey($authKey)) {
            $identity = null;
            $ip = Yii::$app->getRequest()->getUserIP();
            Yii::warning("Invalid session auth key attempted for user '$id' from $ip: $authKey", __METHOD__);
        }
    }
    $this->setIdentity($identity);
    if ($identity !== null && ($this->authTimeout !== null || $this->absoluteAuthTimeout !== null)) {
        $expire = $this->authTimeout !== null ? $session->get($this->authTimeoutParam) : null;
        $expireAbsolute = $this->absoluteAuthTimeout !== null ? $session->get($this->absoluteAuthTimeoutParam) : null;
        if ($expire !== null && $expire < time() || $expireAbsolute !== null && $expireAbsolute < time()) {
            $this->logout(false);
        } elseif ($this->authTimeout !== null) {
            $session->set($this->authTimeoutParam, time() + $this->authTimeout);
        }
    }
    if ($this->enableAutoLogin) {
        if ($this->getIsGuest()) {
            $this->loginByCookie();
        } elseif ($this->autoRenewCookie) {
            $this->renewIdentityCookie();
        }
    }
}

            
renewIdentityCookie() protected method

Defined in: yii\web\User::renewIdentityCookie()

Renews the identity cookie.

This method will set the expiration time of the identity cookie to be the current time plus the originally specified cookie duration.

protected void renewIdentityCookie ( )

                protected function renewIdentityCookie()
{
    $name = $this->identityCookie['name'];
    $value = Yii::$app->getRequest()->getCookies()->getValue($name);
    if ($value !== null) {
        $data = json_decode($value, true);
        if (is_array($data) && isset($data[2])) {
            $cookie = Yii::createObject(array_merge($this->identityCookie, [
                'class' => 'yii\web\Cookie',
                'value' => $value,
                'expire' => time() + (int) $data[2],
            ]));
            Yii::$app->getResponse()->getCookies()->add($cookie);
        }
    }
}

            
sendIdentityCookie() protected method

Defined in: yii\web\User::sendIdentityCookie()

Sends an identity cookie.

This method is used when $enableAutoLogin is true. It saves $id, auth key, and the duration of cookie-based login information in the cookie.

See also loginByCookie().

protected void sendIdentityCookie ( $identity, $duration )
$identity yii\web\IdentityInterface
$duration integer

Number of seconds that the user can remain in logged-in status.

                protected function sendIdentityCookie($identity, $duration)
{
    $cookie = Yii::createObject(array_merge($this->identityCookie, [
        'class' => 'yii\web\Cookie',
        'value' => json_encode([
            $identity->getId(),
            $identity->getAuthKey(),
            $duration,
        ], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE),
        'expire' => time() + $duration,
    ]));
    Yii::$app->getResponse()->getCookies()->add($cookie);
}

            
setIdentity() public method

Defined in: yii\web\User::setIdentity()

Sets the user identity object.

Note that this method does not deal with session or cookie. You should usually use switchIdentity() to change the identity of the current user.

public void setIdentity ( $identity )
$identity yii\web\IdentityInterface|null

The identity object associated with the currently logged user. If null, it means the current user will be a guest without any associated identity.

throws yii\base\InvalidValueException

if $identity object does not implement yii\web\IdentityInterface.

                public function setIdentity($identity)
{
    if ($identity instanceof IdentityInterface) {
        $this->_identity = $identity;
    } elseif ($identity === null) {
        $this->_identity = null;
    } else {
        throw new InvalidValueException('The identity object must implement IdentityInterface.');
    }
    $this->_access = [];
}

            
setReturnUrl() public method

Defined in: yii\web\User::setReturnUrl()

Remembers the URL in the session so that it can be retrieved back later by getReturnUrl().

public void setReturnUrl ( $url )
$url string|array

The URL that the user should be redirected to after login. If an array is given, yii\web\UrlManager::createUrl() will be called to create the corresponding URL. The first element of the array should be the route, and the rest of the name-value pairs are GET parameters used to construct the URL. For example,

['admin/index', 'ref' => 1]

                public function setReturnUrl($url)
{
    Yii::$app->getSession()->set($this->returnUrlParam, $url);
}

            
switchIdentity() public method

Defined in: yii\web\User::switchIdentity()

Switches to a new identity for the current user.

When $enableSession is true, this method may use session and/or cookie to store the user identity information, according to the value of $duration. Please refer to login() for more details.

This method is mainly called by login(), logout() and loginByCookie() when the current user needs to be associated with the corresponding identity information.

public void switchIdentity ( $identity, $duration 0 )
$identity yii\web\IdentityInterface|null

The identity information to be associated with the current user. If null, it means switching the current user to be a guest.

$duration integer

Number of seconds that the user can remain in logged-in status. This parameter is used only when $identity is not null.

                public function switchIdentity($identity, $duration = 0)
{
    $this->setIdentity($identity);
    if (!$this->enableSession) {
        return;
    }
    /* Ensure any existing identity cookies are removed. */
    if ($this->enableAutoLogin && ($this->autoRenewCookie || $identity === null)) {
        $this->removeIdentityCookie();
    }
    $session = Yii::$app->getSession();
    $session->regenerateID(true);
    $session->remove($this->idParam);
    $session->remove($this->authTimeoutParam);
    $session->remove($this->authKeyParam);
    if ($identity) {
        $session->set($this->idParam, $identity->getId());
        $session->set($this->authKeyParam, $identity->getAuthKey());
        if ($this->authTimeout !== null) {
            $session->set($this->authTimeoutParam, time() + $this->authTimeout);
        }
        if ($this->absoluteAuthTimeout !== null) {
            $session->set($this->absoluteAuthTimeoutParam, time() + $this->absoluteAuthTimeout);
        }
        if ($this->enableAutoLogin && $duration > 0) {
            $this->sendIdentityCookie($identity, $duration);
        }
    }
}

            
trigger() public method

Defined in: yii\base\Component::trigger()

Triggers an event.

This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.

public void trigger ( $name, yii\base\Event $event null )
$name string

The event name

$event yii\base\Event|null

The event instance. If not set, a default yii\base\Event object will be created.

                public function trigger($name, Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            // stop further handling if the event is handled
            if ($event->handled) {
                return;
            }
        }
    }
    // invoke class-level attached handlers
    Event::trigger($this, $name, $event);
}