Class AuthComponent

Authentication control component class.

Binds access control with user authentication and session management.

Namespace: Cake\Controller\Component

Constants summary

string

ALL

'all'
string

QUERY_STRING_REDIRECT

'redirect'

Properties summary

$Flash public

\Cake\Controller\Component\FlashComponent
$RequestHandler public

\Cake\Controller\Component\RequestHandlerComponent
$_authenticateObjects protected

\Cake\Auth\BaseAuthenticate[]

Objects that will be used for authentication checks.
$_authenticationProvider protected

\Cake\Auth\BaseAuthenticate|null

The instance of the Authenticate provider that was used for successfully logging in the current user after calling login() in the same request
$_authorizationProvider protected

\Cake\Auth\BaseAuthorize|null

The instance of the Authorize provider that was used to grant access to the current user to the URL they are requesting.
$_authorizeObjects protected

\Cake\Auth\BaseAuthorize[]

Objects that will be used for authorization checks.
$_componentMap protected

array

A component lookup table used to lazy load component objects.
$_config protected

array

Runtime config
$_configInitialized protected

bool

Whether the config property has already been configured with defaults
$_defaultConfig protected

array

Default config
$_eventClass protected

string

Default class name for new event objects.
$_eventManager protected

\Cake\Event\EventManagerInterface

Instance of the Cake\Event\EventManager this object is using to dispatch inner events.
$_registry protected

\Cake\Controller\ComponentRegistry

Component registry class used to lazy load components.
$_storage protected

\Cake\Auth\Storage\StorageInterface|null

Storage object.
$allowedActions public

string[]

Controller actions for which user validation is not required.
$components public

array

Other components utilized by AuthComponent

Method Summary

__construct() public

Constructor
__debugInfo() public

Returns an array that can be used to describe the internal state of this object.
__get() public

Magic accessor for backward compatibility for property $sessionKey.
__set() public

Magic setter for backward compatibility for property $sessionKey.
_configDelete() protected

Deletes a single config key.
_configRead() protected

Reads a config key.
_configWrite() protected

Writes a config key.
_getUrlToRedirectBackTo() protected

Returns the URL to redirect back to or / if not possible.
_getUser() protected

Similar to AuthComponent::user() except if user is not found in configured storage, connected authentication objects will have their getUser() methods called.
_isAllowed() protected

Checks whether current action is accessible without authentication.
_isLoginAction() protected

Normalizes config loginAction and checks if current request URL is same as login action.
_loginActionRedirectUrl() protected

Returns the URL of the login action to redirect to.
_setDefaults() protected

Sets defaults for configs.
_unauthenticated() protected

Handles unauthenticated access attempt. First the unauthenticated() method of the last authenticator in the chain will be called. The authenticator can handle sending response or redirection as appropriate and return true to indicate no further action is necessary. If authenticator returns null this method redirects user to login action.
_unauthorized() protected

Handle unauthorized access attempt
allow() public

Takes a list of actions in the current controller for which authentication is not required, or no parameters to allow all actions.
authCheck() public

Main execution method, handles initial authentication check and redirection of invalid users.
authenticationProvider() public

If login was called during this request and the user was successfully authenticated, this function will return the instance of the authentication object that was used for logging the user in.
authorizationProvider() public

If there was any authorization processing for the current request, this function will return the instance of the Authorization object that granted access to the user to the current address.
configShallow() public

Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.
constructAuthenticate() public

Loads the configured authentication objects.
constructAuthorize() public

Loads the authorization objects configured.
deny() public

Removes items from the list of allowed/no authentication required actions.
dispatchEvent() public

Wrapper for creating and dispatching events.
flash() public

Set a flash message. Uses the Flash component with values from flash config.
getAuthenticate() public

Getter for authenticate objects. Will return a particular authenticate object.
getAuthorize() public

Getter for authorize objects. Will return a particular authorize object.
getConfig() public

Returns the config.
getConfigOrFail() public

Returns the config for this specific key.
getController() public

Get the controller this component is bound to.
getEventManager() public

Returns the Cake\Event\EventManager manager instance for this object.
identify() public

Use the configured authentication adapters, and attempt to identify the user by credentials contained in $request.
implementedEvents() public

Events supported by this component.
initialize() public

Initialize properties.
isAuthorized() public

Check if the provided user is authorized for the request.
log() public

Convenience method to write a message to Log. See Log::write() for more information on writing to logs.
logout() public

Log a user out.
redirectUrl() public

Get the URL a user should be redirected to upon login.
setConfig() public

Sets the config.
setEventManager() public

Returns the Cake\Event\EventManagerInterface instance for this object.
setUser() public

Set provided user info to storage as logged in user.
startup() public

Callback for Controller.startup event.
storage() public

Get/set user record storage object.
user() public

Get the current user from storage.

Method Detail

__construct() public

__construct(\Cake\Controller\ComponentRegistry $registry, array $config)

Constructor

Parameters

\Cake\Controller\ComponentRegistry $registry: A component registry this component can use to lazy load its components.
array $config optional: Array of configuration settings.

__debugInfo() public

__debugInfo()

Returns an array that can be used to describe the internal state of this object.

Returns

array

__get() public

__get(string $name)

Magic accessor for backward compatibility for property $sessionKey.

Parameters

string $name: Property name

Returns

mixed

__set() public

__set(string $name, mixed $value)

Magic setter for backward compatibility for property $sessionKey.

Parameters

string $name: Property name.
mixed $value: Value to set.

_configDelete() protected

_configDelete(string $key)

Deletes a single config key.

Parameters

string $key: Key to delete.

Throws

Cake\Core\Exception\Exception
if attempting to clobber existing config

_configRead() protected

_configRead(?string $key)

Reads a config key.

Parameters

string|null $key: Key to read.

Returns

mixed

_configWrite() protected

_configWrite(mixed $key, mixed $value, mixed $merge)

Writes a config key.

Parameters

string|array $key: Key to write to.
mixed $value: Value to write.
bool|string $merge optional: True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.

Throws

Cake\Core\Exception\Exception
if attempting to clobber existing config

_getUrlToRedirectBackTo() protected

_getUrlToRedirectBackTo()

Returns the URL to redirect back to or / if not possible.

This method takes the referrer into account if the request is not of type GET.

Returns

string

_getUser() protected

_getUser()

Similar to AuthComponent::user() except if user is not found in configured storage, connected authentication objects will have their getUser() methods called.

This lets stateless authentication methods function correctly.

Returns

bool

true If a user can be found, false if one cannot.

_isAllowed() protected

_isAllowed(\Cake\Controller\Controller $controller)

Checks whether current action is accessible without authentication.

Parameters

\Cake\Controller\Controller $controller: A reference to the instantiating controller object

Returns

bool

True if action is accessible without authentication else false

_isLoginAction() protected

_isLoginAction(\Cake\Controller\Controller $controller)

Normalizes config loginAction and checks if current request URL is same as login action.

Parameters

\Cake\Controller\Controller $controller: A reference to the controller object.

Returns

bool

True if current action is login action else false.

_loginActionRedirectUrl() protected

_loginActionRedirectUrl()

Returns the URL of the login action to redirect to.

This includes the redirect query string if applicable.

Returns

array|string

_setDefaults() protected

_setDefaults()

Sets defaults for configs.

_unauthenticated() protected

_unauthenticated(\Cake\Controller\Controller $controller)

Handles unauthenticated access attempt. First the unauthenticated() method of the last authenticator in the chain will be called. The authenticator can handle sending response or redirection as appropriate and return true to indicate no further action is necessary. If authenticator returns null this method redirects user to login action.

Parameters

\Cake\Controller\Controller $controller: A reference to the controller object.

Returns

\Cake\Http\Response|null

Null if current action is login action else response object returned by authenticate object or Controller::redirect().

Throws

Cake\Core\Exception\Exception

_unauthorized() protected

_unauthorized(\Cake\Controller\Controller $controller)

Handle unauthorized access attempt

Parameters

\Cake\Controller\Controller $controller: A reference to the controller object

Returns

\Cake\Http\Response|null

Throws

Cake\Http\Exception\ForbiddenException

allow() public

allow(mixed $actions)

Takes a list of actions in the current controller for which authentication is not required, or no parameters to allow all actions.

You can use allow with either an array or a simple string.

$this->Auth->allow('view');
$this->Auth->allow(['edit', 'add']);

or to allow all actions

$this->Auth->allow();

Parameters

string|string[]|null $actions optional: Controller action name or array of actions

Links

https://book.cakephp.org/4/en/controllers/components/authentication.html#making-actions-public

authCheck() public

authCheck(\Cake\Event\EventInterface $event)

Main execution method, handles initial authentication check and redirection of invalid users.

The auth check is done when event name is same as the one configured in checkAuthIn config.

Parameters

\Cake\Event\EventInterface $event: Event instance.

Returns

\Cake\Http\Response|null

Throws

ReflectionException

authenticationProvider() public

authenticationProvider()

If login was called during this request and the user was successfully authenticated, this function will return the instance of the authentication object that was used for logging the user in.

Returns

\Cake\Auth\BaseAuthenticate|null

authorizationProvider() public

authorizationProvider()

If there was any authorization processing for the current request, this function will return the instance of the Authorization object that granted access to the user to the current address.

Returns

\Cake\Auth\BaseAuthorize|null

configShallow() public

configShallow(mixed $key, mixed $value)

Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.

Setting a specific value:

$this->configShallow('key', $value);

Setting a nested value:

$this->configShallow('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->configShallow(['one' => 'value', 'another' => 'value']);

Parameters

string|array $key: The key to set, or a complete array of configs.
mixed|null $value optional: The value to set.

Returns

$this

constructAuthenticate() public

constructAuthenticate()

Loads the configured authentication objects.

Returns

array|null

The loaded authorization objects, or null on empty authenticate value.

Throws

Cake\Core\Exception\Exception

constructAuthorize() public

constructAuthorize()

Loads the authorization objects configured.

Returns

array|null

The loaded authorization objects, or null when authorize is empty.

Throws

Cake\Core\Exception\Exception

deny() public

deny(mixed $actions)

Removes items from the list of allowed/no authentication required actions.

You can use deny with either an array or a simple string.

$this->Auth->deny('view');
$this->Auth->deny(['edit', 'add']);

$this->Auth->deny();

to remove all items from the allowed list

Parameters

string|string[]|null $actions optional: Controller action name or array of actions

Links

https://book.cakephp.org/4/en/controllers/components/authentication.html#making-actions-require-authorization

dispatchEvent() public

dispatchEvent(string $name, ?array $data, ?object $subject)

Wrapper for creating and dispatching events.

Returns a dispatched event.

Parameters

string $name: Name of the event.
array|null $data optional: Any value you wish to be transported with this event to it can be read by listeners.
object|null $subject optional: The object that this event applies to ($this by default).

Returns

\Cake\Event\EventInterface

flash() public

flash(mixed $message)

Set a flash message. Uses the Flash component with values from flash config.

Parameters

string|false $message: The message to set. False to skip.

getAuthenticate() public

getAuthenticate(string $alias)

Getter for authenticate objects. Will return a particular authenticate object.

Parameters

string $alias: Alias for the authenticate object

Returns

\Cake\Auth\BaseAuthenticate|null

getAuthorize() public

getAuthorize(string $alias)

Getter for authorize objects. Will return a particular authorize object.

Parameters

string $alias: Alias for the authorize object

Returns

\Cake\Auth\BaseAuthorize|null

getConfig() public

getConfig(?string $key, mixed $default)

Returns the config.

Usage

Reading the whole config:

$this->getConfig();

Reading a specific value:

$this->getConfig('key');

Reading a nested value:

$this->getConfig('some.nested.key');

Reading with default value:

$this->getConfig('some-key', 'default-value');

Parameters

string|null $key optional: The key to get or null for the whole config.
mixed $default optional: The return value when the key does not exist.

Returns

mixed

Configuration data at the named key or null if the key does not exist.

getConfigOrFail() public

getConfigOrFail(string $key)

Returns the config for this specific key.

The config value for this key must exist, it can never be null.

Parameters

string $key: The key to get.

Returns

mixed

Configuration data at the named key

Throws

InvalidArgumentException

getController() public

getController()

Get the controller this component is bound to.

Returns

\Cake\Controller\Controller

The bound controller.

getEventManager() public

getEventManager()

Returns the Cake\Event\EventManager manager instance for this object.

You can use this instance to register any new listeners or callbacks to the object events, or create your own events and trigger them at will.

Returns

\Cake\Event\EventManagerInterface

identify() public

identify()

Use the configured authentication adapters, and attempt to identify the user by credentials contained in $request.

Triggers Auth.afterIdentify event which the authenticate classes can listen to.

Returns

array|false

User record data, or false, if the user could not be identified.

implementedEvents() public

implementedEvents()

Events supported by this component.

Returns

array

initialize() public

initialize(array $config)

Initialize properties.

Parameters

array $config: The config data.

isAuthorized() public

isAuthorized(mixed $user, ?\Cake\Http\ServerRequest $request)

Check if the provided user is authorized for the request.

Uses the configured Authorization adapters to check whether or not a user is authorized. Each adapter will be checked in sequence, if any of them return true, then the user will be authorized for the request.

Parameters

array|\ArrayAccess|null $user optional: The user to check the authorization of. If empty the user fetched from storage will be used.
\Cake\Http\ServerRequest|null $request optional: The request to authenticate for. If empty, the current request will be used.

Returns

bool

True if $user is authorized, otherwise false

log() public

log(string $message, mixed $level, mixed $context)

Convenience method to write a message to Log. See Log::write() for more information on writing to logs.

Parameters

string $message: Log message.
int|string $level optional: Error level.
string|array $context optional: Additional log data relevant to this message.

Returns

bool

Success of log write.

logout() public

logout()

Log a user out.

Returns the logout action to redirect to. Triggers the Auth.logout event which the authenticate classes can listen for and perform custom logout logic.

Returns

string

Normalized config logoutRedirect

Links

https://book.cakephp.org/4/en/controllers/components/authentication.html#logging-users-out

redirectUrl() public

redirectUrl(mixed $url)

Get the URL a user should be redirected to upon login.

Pass a URL in to set the destination a user should be redirected to upon logging in.

If no parameter is passed, gets the authentication redirect URL. The URL returned is as per following rules:

Returns the normalized redirect URL from storage if it is present and for the same domain the current app is running on.
If there is no URL returned from storage and there is a config loginRedirect, the loginRedirect value is returned.
If there is no session and no loginRedirect, / is returned.

Parameters

string|array|null $url optional: Optional URL to write as the login redirect URL.

Returns

string

Redirect URL

setConfig() public

setConfig(mixed $key, mixed $value, mixed $merge)

Sets the config.

Usage

Setting a specific value:

$this->setConfig('key', $value);

Setting a nested value:

$this->setConfig('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->setConfig(['one' => 'value', 'another' => 'value']);

Parameters

string|array $key: The key to set, or a complete array of configs.
mixed|null $value optional: The value to set.
bool $merge optional: Whether to recursively merge or overwrite existing config, defaults to true.

Returns

$this

Throws

Cake\Core\Exception\Exception
When trying to set a key that is invalid.

setEventManager() public

setEventManager(\Cake\Event\EventManagerInterface $eventManager)

Returns the Cake\Event\EventManagerInterface instance for this object.

You can use this instance to register any new listeners or callbacks to the object events, or create your own events and trigger them at will.

Parameters

\Cake\Event\EventManagerInterface $eventManager: the eventManager to set

Returns

$this

setUser() public

setUser(mixed $user)

Set provided user info to storage as logged in user.

The storage class is configured using storage config key or passing instance to AuthComponent::storage().

Parameters

array|\ArrayAccess $user: User data.

Links

https://book.cakephp.org/4/en/controllers/components/authentication.html#identifying-users-and-logging-them-in

startup() public

startup(\Cake\Event\EventInterface $event)

Callback for Controller.startup event.

Parameters

\Cake\Event\EventInterface $event: Event instance.

Returns

\Cake\Http\Response|null

storage() public

storage(?\Cake\Auth\Storage\StorageInterface $storage)

Get/set user record storage object.

Parameters

\Cake\Auth\Storage\StorageInterface|null $storage optional: Sets provided object as storage or if null returns configured storage object.

Returns

\Cake\Auth\Storage\StorageInterface|null

user() public

user(?string $key)

Get the current user from storage.

Parameters

string|null $key optional: Field to retrieve. Leave null to get entire User record.

Returns

mixed|null

Either User record or null if no user is logged in, or retrieved field if key is specified.

Links

https://book.cakephp.org/4/en/controllers/components/authentication.html#accessing-the-logged-in-user

Property Detail

`$Flash` public

Type

\Cake\Controller\Component\FlashComponent

`$RequestHandler` public

Type

\Cake\Controller\Component\RequestHandlerComponent

`$_authenticateObjects` protected

Objects that will be used for authentication checks.

Type

\Cake\Auth\BaseAuthenticate[]

`$_authenticationProvider` protected

The instance of the Authenticate provider that was used for successfully logging in the current user after calling login() in the same request

Type

\Cake\Auth\BaseAuthenticate|null

`$_authorizationProvider` protected

The instance of the Authorize provider that was used to grant access to the current user to the URL they are requesting.

Type

\Cake\Auth\BaseAuthorize|null

`$_authorizeObjects` protected

Objects that will be used for authorization checks.

Type

\Cake\Auth\BaseAuthorize[]

`$_componentMap` protected

A component lookup table used to lazy load component objects.

Type

array

`$_config` protected

Runtime config

Type

array

`$_configInitialized` protected

Whether the config property has already been configured with defaults

Type

bool

`$_defaultConfig` protected

Default config

authenticate - An array of authentication objects to use for authenticating users. You can configure multiple adapters and they will be checked sequentially when users are identified.
```
$this->Auth->setConfig('authenticate', [
 'Form' => [
    'userModel' => 'Users.Users'
 ]
]);
```
Using the class name without 'Authenticate' as the key, you can pass in an array of config for each authentication object. Additionally you can define config that should be set to all authentications objects using the 'all' key:
```
$this->Auth->setConfig('authenticate', [
  AuthComponent::ALL => [
     'userModel' => 'Users.Users',
     'scope' => ['Users.active' => 1]
 ],
'Form',
'Basic'
]);
```
authorize - An array of authorization objects to use for authorizing users. You can configure multiple adapters and they will be checked sequentially when authorization checks are done.
```
$this->Auth->setConfig('authorize', [
 'Crud' => [
     'actionPath' => 'controllers/'
 ]
]);
```
Using the class name without 'Authorize' as the key, you can pass in an array of config for each authorization object. Additionally you can define config that should be set to all authorization objects using the AuthComponent::ALL key:
```
$this->Auth->setConfig('authorize', [
 AuthComponent::ALL => [
     'actionPath' => 'controllers/'
 ],
 'Crud',
 'CustomAuth'
]);
```
flash - Settings to use when Auth needs to do a flash message with FlashComponent::set(). Available keys are:
- key - The message domain to use for flashes generated by this component, defaults to 'auth'.
- element - Flash element to use, defaults to 'default'.
- params - The array of additional params to use, defaults to ['class' => 'error']
loginAction - A URL (defined as a string or array) to the controller action that handles logins. Defaults to /users/login.
loginRedirect - Normally, if a user is redirected to the loginAction page, the location they were redirected from will be stored in the session so that they can be redirected back after a successful login. If this session value is not set, redirectUrl() method will return the URL specified in loginRedirect.
logoutRedirect - The default action to redirect to after the user is logged out. While AuthComponent does not handle post-logout redirection, a redirect URL will be returned from AuthComponent::logout(). Defaults to loginAction.
authError - Error to display when user attempts to access an object or action to which they do not have access.
unauthorizedRedirect - Controls handling of unauthorized access.
- For default value true unauthorized user is redirected to the referrer URL or $loginRedirect or '/'.
- If set to a string or array the value is used as a URL to redirect to.
- If set to false a ForbiddenException exception is thrown instead of redirecting.
storage - Storage class to use for persisting user record. When using stateless authenticator you should set this to 'Memory'. Defaults to 'Session'.
checkAuthIn - Name of event for which initial auth checks should be done. Defaults to 'Controller.startup'. You can set it to 'Controller.initialize' if you want the check to be done before controller's beforeFilter() is run.

Type

array

`$_eventClass` protected

Default class name for new event objects.

Type

string

`$_eventManager` protected

Instance of the Cake\Event\EventManager this object is using to dispatch inner events.

Type

\Cake\Event\EventManagerInterface

`$_registry` protected

Component registry class used to lazy load components.

Type

\Cake\Controller\ComponentRegistry

`$_storage` protected

Storage object.

Type

\Cake\Auth\Storage\StorageInterface|null

`$allowedActions` public

Controller actions for which user validation is not required.

Type

string[]

`$components` public

Other components utilized by AuthComponent

Type

array

© 2005–present The Cake Software Foundation, Inc.
Licensed under the MIT License.
CakePHP is a registered trademark of Cake Software Foundation, Inc.
We are not endorsed by or affiliated with CakePHP.
https://api.cakephp.org/4.1/class-Cake.Controller.Component.AuthComponent.html

Class AuthComponent

Constants summary

Properties summary

Method Summary

Method Detail

__construct() public

Parameters

__debugInfo() public

Returns

__get() public

Parameters

Returns

__set() public

Parameters

_configDelete() protected

Parameters

Throws

_configRead() protected

Parameters

Returns

_configWrite() protected

Parameters

Throws

_getUrlToRedirectBackTo() protected

Returns

_getUser() protected

Returns

_isAllowed() protected

Parameters

Returns

_isLoginAction() protected

Parameters

Returns

_loginActionRedirectUrl() protected

Returns

_setDefaults() protected

_unauthenticated() protected

Parameters

Returns

Throws

_unauthorized() protected

Parameters

Returns

Throws

allow() public

Parameters

Links

authCheck() public

Parameters

Returns

Throws

authenticationProvider() public

Returns

authorizationProvider() public

Returns

configShallow() public

Parameters

Returns

constructAuthenticate() public

Returns

Throws

constructAuthorize() public

Returns

Throws

deny() public

Parameters

See Also

Links

dispatchEvent() public

Parameters

Returns

flash() public

Parameters

getAuthenticate() public

Parameters

Returns

getAuthorize() public

Parameters

Returns

getConfig() public

`$Flash` public

`$RequestHandler` public

`$_authenticateObjects` protected

`$_authenticationProvider` protected

`$_authorizationProvider` protected

`$_authorizeObjects` protected

`$_componentMap` protected

`$_config` protected

`$_configInitialized` protected

`$_defaultConfig` protected