Class CsrfComponent
Provides CSRF protection & validation.
This component adds a CSRF token to a cookie. The cookie value is compared to request data, or the X-CSRF-Token header on each PATCH, POST, PUT, or DELETE request.
If the request data is missing or does not match the cookie data, an InvalidCsrfTokenException will be raised.
This component integrates with the FormHelper automatically and when used together your forms will have CSRF tokens automatically added when $this->Form->create(...)
is used in a view.
- Cake\Controller\Component implements Cake\Event\EventListenerInterface uses Cake\Core\InstanceConfigTrait, Cake\Log\LogTrait
- Cake\Controller\Component\CsrfComponent
Method Detail
_setCookiesource protected
_setCookie( Cake\Network\Request $request , Cake\Network\Response $response )
Set the cookie in the response.
Also sets the request->params['_csrfToken'] so the newly minted token is available in the request data.
Parameters
-
Cake\Network\Request
$request
- The request object.
-
Cake\Network\Response
$response
- The response object.
_validateTokensource protected
_validateToken( Cake\Network\Request $request )
Validate the request data against the cookie token.
Parameters
-
Cake\Network\Request
$request
- The request to validate against.
Throws
Cake\Network\Exception\InvalidCsrfTokenException
when the CSRF token is invalid or missing.
implementedEventssource public
implementedEvents( )
Events supported by this component.
Returns
array
array
Overrides
Cake\Controller\Component::implementedEvents()
startupsource public
startup( Cake\Event\Event $event )
Startup callback.
Validates the CSRF token for POST data. If the request is a GET request, and the cookie value is absent a cookie will be set.
Once a cookie is set it will be copied into request->params['_csrfToken'] so that application and framework code can easily access the csrf token.
RequestAction requests do not get checked, nor will they set a cookie should it be missing.
Parameters
-
Cake\Event\Event
$event
- Event instance.
Methods inherited from Cake\Controller\Component
__constructsource public
__construct( Cake\Controller\ComponentRegistry $registry , array $config [] )
Constructor
Parameters
-
Cake\Controller\ComponentRegistry
$registry
- A ComponentRegistry this component can use to lazy load its components
- array
$config
optional [] - Array of configuration settings.
__debugInfosource public
__debugInfo( )
Returns an array that can be used to describe the internal state of this object.
Returns
array
array
__getsource public
__get( string $name )
Magic method for lazy loading $components.
Parameters
- string
$name
- Name of component to get.
Returns
mixed
A Component object or null.
initializesource public
initialize( array $config )
Constructor hook method.
Implement this method to avoid having to overwrite the constructor and call parent.
Parameters
- array
$config
- The configuration settings provided to this component.
Methods used from Cake\Core\InstanceConfigTrait
_configDeletesource protected
_configDelete( string $key )
Delete a single config key
Parameters
- string
$key
- Key to delete.
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
_configReadsource protected
_configRead( string|null $key )
Read a config variable
Parameters
- string|null
$key
- Key to read.
Returns
mixed
mixed
_configWritesource protected
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
Write a config variable
Parameters
- string|array
$key
- Key to write to.
- mixed
$value
- Value to write.
- boolean|string
$merge
optional false - 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
configsource public
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
Usage
Reading the whole config:
$this->config();
Reading a specific value:
$this->config('key');
Reading a nested value:
$this->config('some.nested.key');
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Parameters
- string|array|null
$key
optional null - The key to get/set, or a complete array of configs.
- mixed|null
$value
optional null - The value to set.
- boolean
$merge
optional true - Whether to recursively merge or overwrite existing config, defaults to true.
Returns
mixed
Config value being read, or the object itself on write operations.
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
configShallowsource public
configShallow( string|array $key , mixed|null $value null )
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->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Parameters
- string|array
$key
- The key to set, or a complete array of configs.
- mixed|null
$value
optional null - The value to set.
Returns
mixed
$this The object itself.
Methods used from Cake\Log\LogTrait
logsource public
log( mixed $msg , integer|string $level LogLevel::ERROR , string|array $context [] )
Convenience method to write a message to Log. See Log::write() for more information on writing to logs.
Parameters
- mixed
$msg
- Log message.
- integer|string
$level
optional LogLevel::ERROR - Error level.
- string|array
$context
optional [] - Additional log data relevant to this message.
Returns
boolean
Success of log write.
Properties summary
Properties inherited from Cake\Controller\Component
$_componentMapsource
protected array
A component lookup table used to lazy load component objects.
[]
$_registrysource
protected Cake\Controller\ComponentRegistry
Component registry class used to lazy load components.
Properties used from Cake\Core\InstanceConfigTrait
$_configInitializedsource
protected boolean
Whether the config property has already been configured with defaults
false
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Licensed under the MIT License.
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http://api.cakephp.org/3.1/class-Cake.Controller.Component.CsrfComponent.html