Class AuthComponent
Authentication control component class
Binds access control with user authentication and session management.
- CakeObject
- Component
- AuthComponent
Link: https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html
Copyright: Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
License: MIT License
Location: Cake/Controller/Component/AuthComponent.php
Constants summary
-
string
'all'
Properties summary
-
$_authenticateObjects
protected -
$_authorizeObjects
protected -
$_methods
protectedMethod list for bound controller.array
-
array
The current user, used for stateless authentication when sessions are not available.
-
$ajaxLogin
publicstring
The name of an optional view element to render when an Ajax request is made with an invalid or expired session
-
$allowedActions
publicController actions for which user validation is not required.array
-
$authError
publicstring|boolean
Error to display when user attempts to access an object or action to which they do not have access.
-
$authenticate
publicarray
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.
-
$authorize
publicmixed
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.
-
$components
publicOther components utilized by AuthComponentarray
-
$flash
publicarray
Settings to use when Auth needs to do a flash message with SessionComponent::setFlash(). Available keys are:
-
$loginAction
publicmixed
A URL (defined as a string or array) to the controller action that handles logins. Defaults to
/users/login
. -
$loginRedirect
publicmixed
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.
-
$logoutRedirect
publicmixed
The default action to redirect to after the user is logged out. While AuthComponent does not handle post-logout redirection, a redirect URL will be returned from AuthComponent::logout(). Defaults to AuthComponent::$loginAction.
-
$request
public -
$response
public -
string
The session key name where the record of the current user is stored. Default key is "Auth.User". If you are using only stateless authenticators set this to false to ensure session is not started.
-
$unauthorizedRedirect
publicmixed
Controls handling of unauthorized access. - For default value
true
unauthorized user is redirected to the referrer URL or AuthComponent::$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.
Inherited Properties
Method Summary
- _getUser() protected
Similar to AuthComponent::user() except if the session user cannot be found, connected authentication objects will have their getUser() methods called. This lets stateless authentication methods function correctly.
- _isAllowed() protectedChecks whether current action is accessible without authentication.
- _isLoginAction() protectedNormalizes $loginAction and checks if current request URL is same as login action.
- _setDefaults() protectedAttempts to introspect the correct values for object properties.
- _unauthenticated() protected
Handles unauthenticated access attempt. First the
unathenticated()
method of the last authenticator in the chain will be called. The authenticator can handle sending response or redirection as appropriate and returntrue
to indicate no furthur action is necessary. If authenticator returns null this method redirects user to login action. If it's an ajax request and $ajaxLogin is specified that element is rendered else a 403 http status code is returned. - _unauthorized() protectedHandle unauthorized access attempt
- allow() public
Takes a list of actions in the current controller for which authentication is not required, or no parameters to allow all actions.
- constructAuthenticate() publicLoads the configured authentication objects.
- constructAuthorize() publicLoads the authorization objects configured.
- deny() publicRemoves items from the list of allowed/no authentication required actions.
- flash() publicSet a flash message. Uses the Session component, and values from AuthComponent::$flash.
- identify() public
Use the configured authentication adapters, and attempt to identify the user by credentials contained in $request.
- initialize() publicInitializes AuthComponent for use in the controller.
- isAuthorized() publicCheck if the provided user is authorized for the request.
- loggedIn() publicCheck whether or not the current user has data in the session, and is considered logged in.
- login() publicLog a user in.
- logout() publicLog a user out.
- mapActions() publicMaps action names to CRUD operations.
- Hash a password with the application's salt value (as defined with Configure::write('Security.salt');
- redirect() publicBackwards compatible alias for AuthComponent::redirectUrl().
- redirectUrl() publicGet the URL a user should be redirected to upon login.
- startup() public
Main execution method. Handles redirecting of invalid users, and processing of login form data.
- Get the current user.
Method Detail
_getUser()source protected
_getUser( )
Similar to AuthComponent::user() except if the session user cannot be found, connected authentication objects will have their getUser() methods called. This lets stateless authentication methods function correctly.
Returns
booleanTrue if a user can be found, false if one cannot.
_isAllowed()source protected
_isAllowed( Controller $controller )
Checks whether current action is accessible without authentication.
Parameters
-
Controller
$controller
- A reference to the instantiating controller object
Returns
booleanTrue if action is accessible without authentication else false
_isLoginAction()source protected
_isLoginAction( Controller $controller )
Normalizes $loginAction and checks if current request URL is same as login action.
Parameters
-
Controller
$controller
- A reference to the controller object.
Returns
booleanTrue if current action is login action else false.
_setDefaults()source protected
_setDefaults( )
Attempts to introspect the correct values for object properties.
Returns
booleanTrue
_unauthenticated()source protected
_unauthenticated( Controller $controller )
Handles unauthenticated access attempt. First the unathenticated()
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 furthur action is necessary. If authenticator returns null this method redirects user to login action. If it's an ajax request and $ajaxLogin is specified that element is rendered else a 403 http status code is returned.
Parameters
-
Controller
$controller
- A reference to the controller object.
Returns
booleanTrue if current action is login action else false.
_unauthorized()source protected
_unauthorized( Controller $controller )
Handle unauthorized access attempt
Parameters
-
Controller
$controller
- A reference to the controller object
Returns
booleanReturns false
Throws
ForbiddenException
See
AuthComponent::$unauthorizedRedirectallow()source public
allow( string|array|null $action null )
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 var args.
$this->Auth->allow(array('edit', 'add'));
or $this->Auth->allow('edit', 'add');
or $this->Auth->allow();
to allow all actions
Parameters
- string|array|null
$action
optional null - Controller action name or array of actions
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#making-actions-publicconstructAuthenticate()source public
constructAuthenticate( )
Loads the configured authentication objects.
Returns
mixedEither null on empty authenticate value, or an array of loaded objects.
Throws
CakeException
constructAuthorize()source public
constructAuthorize( )
Loads the authorization objects configured.
Returns
mixedEither null when authorize is empty, or the loaded authorization objects.
Throws
CakeException
deny()source public
deny( string|array|null $action null )
Removes items from the list of allowed/no authentication required actions.
You can use deny with either an array, or var args.
$this->Auth->deny(array('edit', 'add'));
or $this->Auth->deny('edit', 'add');
or $this->Auth->deny();
to remove all items from the allowed list
Parameters
- string|array|null
$action
optional null - Controller action name or array of actions
See
AuthComponent::allow()Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#making-actions-require-authorizationflash()source public
flash( string $message )
Set a flash message. Uses the Session component, and values from AuthComponent::$flash.
Parameters
- string
$message
- The message to set.
identify()source public
identify( CakeRequest $request , CakeResponse $response )
Use the configured authentication adapters, and attempt to identify the user by credentials contained in $request.
Parameters
-
CakeRequest
$request
- The request that contains authentication data.
-
CakeResponse
$response
- The response
Returns
arrayUser record data, or false, if the user could not be identified.
initialize()source public
initialize( Controller $controller )
Initializes AuthComponent for use in the controller.
Parameters
-
Controller
$controller
- A reference to the instantiating controller object
Overrides
Component::initialize()
isAuthorized()source public
isAuthorized( array|null $user null , CakeRequest $request null )
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|null
$user
optional null - The user to check the authorization of. If empty the user in the session will be used.
-
CakeRequest
$request
optional null - The request to authenticate for. If empty, the current request will be used.
Returns
booleanTrue if $user is authorized, otherwise false
loggedIn()source public
loggedIn( )
Check whether or not the current user has data in the session, and is considered logged in.
Deprecated
3.0.0 Since 2.5. Use AuthComponent::user() directly.Returns
booleantrue if the user is logged in, false otherwise
login()source public
login( array|null $user null )
Log a user in.
If a $user is provided that data will be stored as the logged in user. If $user
is empty or not specified, the request will be used to identify a user. If the identification was successful, the user record is written to the session key specified in AuthComponent::$sessionKey. Logging in will also change the session id in order to help mitigate session replays.
Parameters
- array|null
$user
optional null - Either an array of user data, or null to identify a user using the current request.
Returns
booleanTrue on login success, false on failure
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#identifying-users-and-logging-them-inlogout()source public
logout( )
Log a user out.
Returns the logout action to redirect to. Triggers the logout() method of all the authenticate objects, so they can perform custom logout logic. AuthComponent will remove the session data, so there is no need to do that in an authentication object. Logging out will also renew the session id. This helps mitigate issues with session replays.
Returns
stringAuthComponent::$logoutRedirect
See
AuthComponent::$logoutRedirectLink
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#logging-users-outmapActions()source public
mapActions( array $map array() )
Maps action names to CRUD operations.
Used for controller-based authentication. Make sure to configure the authorize property before calling this method. As it delegates $map to all the attached authorize objects.
Deprecated
3.0.0 Map actions usingactionMap
config key on authorize objects insteadParameters
- array
$map
optional array() - Actions to map
Returns
arraySee
BaseAuthorize::mapActions()Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#mapping-actions-when-using-crudauthorizepassword()source public static
password( string $password )
Hash a password with the application's salt value (as defined with Configure::write('Security.salt');
This method is intended as a convenience wrapper for Security::hash(). If you want to use a hashing/encryption system not supported by that method, do not use this method.
Deprecated
3.0.0 Since 2.4. Use Security::hash() directly or a password hasher object.Parameters
- string
$password
- Password to hash
Returns
stringHashed password
redirect()source public
redirect( string|array|null $url null )
Backwards compatible alias for AuthComponent::redirectUrl().
Deprecated
3.0.0 Since 2.3.0, use AuthComponent::redirectUrl() insteadParameters
- string|array|null
$url
optional null - Optional URL to write as the login redirect URL.
Returns
stringRedirect URL
redirectUrl()source public
redirectUrl( string|array|null $url null )
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 URL from session Auth.redirect value if it is present and for the same domain the current app is running on.
- If there is no session value and there is a $loginRedirect, the $loginRedirect value is returned.
- If there is no session and no $loginRedirect, / is returned.
Parameters
- string|array|null
$url
optional null - Optional URL to write as the login redirect URL.
Returns
stringRedirect URL
startup()source public
startup( Controller $controller )
Main execution method. Handles redirecting of invalid users, and processing of login form data.
Parameters
-
Controller
$controller
- A reference to the instantiating controller object
Returns
booleanOverrides
Component::startup()
user()source public static
user( string|null $key null )
Get the current user.
Will prefer the static user cache over sessions. The static user cache is primarily used for stateless authentication. For stateful authentication, cookies + sessions will be used.
Parameters
- string|null
$key
optional null - field to retrieve. Leave null to get entire User record
Returns
mixed|nullUser record. or null if no user is logged in.
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#accessing-the-logged-in-userMethods inherited from Component
__construct()source public
__construct( ComponentCollection $collection , array $settings array() )
Constructor
Parameters
-
ComponentCollection
$collection
- A ComponentCollection this component can use to lazy load its components
- array
$settings
optional array() - Array of configuration settings.
Overrides
CakeObject::__construct()
__get()source public
__get( string $name )
Magic method for lazy loading $components.
Parameters
- string
$name
- Name of component to get.
Returns
mixedA Component object or null.
beforeRedirect()source public
beforeRedirect( Controller $controller , string|array $url , integer $status null , boolean $exit true )
Called before Controller::redirect(). Allows you to replace the URL that will be redirected to with a new URL. The return of this method can either be an array or a string.
If the return is an array and contains a 'url' key. You may also supply the following:
-
status
The status code for the redirect -
exit
Whether or not the redirect should exit.
If your response is a string or an array that does not contain a 'url' key it will be used as the new URL to redirect to.
Parameters
-
Controller
$controller
- Controller with components to beforeRedirect
- string|array
$url
- Either the string or URL array that is being redirected to.
- integer
$status
optional null - The status code of the redirect
- boolean
$exit
optional true - Will the script exit.
Returns
array|nullEither an array or null.
Link
https://book.cakephp.org/2.0/en/controllers/components.html#Component::beforeRedirectbeforeRender()source public
beforeRender( Controller $controller )
Called before the Controller::beforeRender(), and before the view class is loaded, and before Controller::render()
Parameters
-
Controller
$controller
- Controller with components to beforeRender
Link
https://book.cakephp.org/2.0/en/controllers/components.html#Component::beforeRendershutdown()source public
shutdown( Controller $controller )
Called after Controller::render() and before the output is printed to the browser.
Parameters
-
Controller
$controller
- Controller with components to shutdown
Link
https://book.cakephp.org/2.0/en/controllers/components.html#Component::shutdownMethods inherited from CakeObject
_mergeVars()source protected
_mergeVars( array $properties , string $class , boolean $normalize true )
Merges this objects $property with the property in $class' definition. This classes value for the property will be merged on top of $class'
This provides some of the DRY magic CakePHP provides. If you want to shut it off, redefine this method as an empty function.
Parameters
- array
$properties
- The name of the properties to merge.
- string
$class
- The class to merge the property with.
- boolean
$normalize
optional true - Set to true to run the properties through Hash::normalize() before merging.
_set()source protected
_set( array $properties array() )
Allows setting of multiple properties of the object in a single line of code. Will only set properties that are part of a class declaration.
Parameters
- array
$properties
optional array() - An associative array containing properties and corresponding values.
_stop()source protected
_stop( integer|string $status 0 )
Stop execution of the current script. Wraps exit() making testing easier.
Parameters
- integer|string
$status
optional 0 - see http://php.net/exit for values
dispatchMethod()source public
dispatchMethod( string $method , array $params array() )
Calls a method on this object with the given parameters. Provides an OO wrapper for call_user_func_array
Parameters
- string
$method
- Name of the method to call
- array
$params
optional array() - Parameter list to use when calling $method
Returns
mixedReturns the result of the method call
log()source public
log( string $msg , integer $type LOG_ERR , null|string|array $scope null )
Convenience method to write a message to CakeLog. See CakeLog::write() for more information on writing to logs.
Parameters
- string
$msg
- Log message
- integer
$type
optional LOG_ERR - Error type constant. Defined in app/Config/core.php.
- null|string|array
$scope
optional null The scope(s) a log message is being created in. See CakeLog::config() for more information on logging scopes.
Returns
booleanSuccess of log write
requestAction()source public
requestAction( string|array $url , array $extra array() )
Calls a controller's method from any location. Can be used to connect controllers together or tie plugins into a main application. requestAction can be used to return rendered views or fetch the return value from controller actions.
Under the hood this method uses Router::reverse() to convert the $url parameter into a string URL. You should use URL formats that are compatible with Router::reverse()
Passing POST and GET data
POST and GET data can be simulated in requestAction. Use $extra['url']
for GET data. The $extra['data']
parameter allows POST data simulation.
Parameters
- string|array
$url
String or array-based URL. Unlike other URL arrays in CakePHP, this URL will not automatically handle passed and named arguments in the $url parameter.
- array
$extra
optional array() if array includes the key "return" it sets the AutoRender to true. Can also be used to submit GET/POST data, and named/passed arguments.
Returns
mixedBoolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.
toString()source public
toString( )
CakeObject-to-string conversion. Each class can override this method as necessary.
Returns
stringThe name of this class
Properties detail
$_authenticateObjectssource
protected BaseAuthenticate[]
Objects that will be used for authentication checks.
array()
$_authorizeObjectssource
protected BaseAuthorize[]
Objects that will be used for authorization checks.
array()
$_usersource
protected static array
The current user, used for stateless authentication when sessions are not available.
array()
$ajaxLoginsource
public string
The name of an optional view element to render when an Ajax request is made with an invalid or expired session
null
$allowedActionssource
public array
Controller actions for which user validation is not required.
See
AuthComponent::allow()array()
$authErrorsource
public string|boolean
Error to display when user attempts to access an object or action to which they do not have access.
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#AuthComponent::$authErrornull
$authenticatesource
public array
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->authenticate = array( 'Form' => array( 'userModel' => 'Users.User' ) );
Using the class name without 'Authenticate' as the key, you can pass in an array of settings for each authentication object. Additionally you can define settings that should be set to all authentications objects using the 'all' key:
$this->Auth->authenticate = array( 'all' => array( 'userModel' => 'Users.User', 'scope' => array('User.active' => 1) ), 'Form', 'Basic' );
You can also use AuthComponent::ALL instead of the string 'all'.
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.htmlarray('Form')
$authorizesource
public mixed
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->authorize = array( 'Crud' => array( 'actionPath' => 'controllers/' ) );
Using the class name without 'Authorize' as the key, you can pass in an array of settings for each authorization object. Additionally you can define settings that should be set to all authorization objects using the 'all' key:
$this->Auth->authorize = array( 'all' => array( 'actionPath' => 'controllers/' ), 'Crud', 'CustomAuth' );
You can also use AuthComponent::ALL instead of the string 'all'
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#authorizationfalse
$componentssource
public array
Other components utilized by AuthComponent
array('Session', 'Flash', 'RequestHandler')
$flashsource
public array
Settings to use when Auth needs to do a flash message with SessionComponent::setFlash(). Available keys are:
-
element
- The element to use, defaults to 'default'. -
key
- The key to use, defaults to 'auth' -
params
- The array of additional params to use, defaults to array()
array( 'element' => 'default', 'key' => 'auth', 'params' => array() )
$loginActionsource
public mixed
A URL (defined as a string or array) to the controller action that handles logins. Defaults to /users/login
.
array( 'controller' => 'users', 'action' => 'login', 'plugin' => null )
$loginRedirectsource
public mixed
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 $loginRedirect.
Link
https://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#AuthComponent::$loginRedirectnull
$logoutRedirectsource
public mixed
The default action to redirect to after the user is logged out. While AuthComponent does not handle post-logout redirection, a redirect URL will be returned from AuthComponent::logout(). Defaults to AuthComponent::$loginAction.
See
AuthComponent::$loginActionAuthComponent::logout()
null
$sessionKeysource
public static string
The session key name where the record of the current user is stored. Default key is "Auth.User". If you are using only stateless authenticators set this to false to ensure session is not started.
'Auth.User'
$unauthorizedRedirectsource
public mixed
Controls handling of unauthorized access. - For default value true
unauthorized user is redirected to the referrer URL or AuthComponent::$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.
true
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https://api.cakephp.org/2.10/class-AuthComponent.html