Class CsrfProtectionMiddleware
Provides CSRF protection & validation.
This middleware 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 middleware 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.
Properties summary
-
$_configprotectedarrayConfiguration -
$_defaultConfigprotectedarrayDefault config for the CSRF handling.
Method Summary
-
__construct() public
Constructor -
__invoke() public
Checks and sets the CSRF token depending on the HTTP verb. -
_addTokenCookie() protected
Add a CSRF token to the response cookies. -
_addTokenToRequest() protected
Add a CSRF token to the request parameters. -
_createToken() protected
Create a new token to be used for CSRF protection -
_validateAndUnsetTokenField() protected
Checks if the request is POST, PUT, DELETE or PATCH and validates the CSRF token -
_validateToken() protected
Validate the request data against the cookie token.
Method Detail
__construct() public ¶
__construct( array $config [] )
Constructor
Parameters
- array $config optional []
- Config options. See $_defaultConfig for valid keys.
__invoke() public ¶
__invoke( Cake\Http\ServerRequest $request , Cake\Http\Response $response , callable $next )
Checks and sets the CSRF token depending on the HTTP verb.
Parameters
-
Cake\Http\ServerRequest$request - The request.
-
Cake\Http\Response$response - The response.
- callable $next
- Callback to invoke the next middleware.
Returns
_addTokenCookie() protected ¶
_addTokenCookie( string $token , Cake\Http\ServerRequest $request , Cake\Http\Response $response )
Add a CSRF token to the response cookies.
Parameters
- string $token
- The token to add.
-
Cake\Http\ServerRequest$request - The request to validate against.
-
Cake\Http\Response$response - The response.
Returns
_addTokenToRequest() protected ¶
_addTokenToRequest( string $token , Cake\Http\ServerRequest $request )
Add a CSRF token to the request parameters.
Parameters
- string $token
- The token to add.
-
Cake\Http\ServerRequest$request - The request to augment
Returns
_createToken() protected ¶
_createToken( )
Create a new token to be used for CSRF protection
Returns
_validateAndUnsetTokenField() protected ¶
_validateAndUnsetTokenField( Cake\Http\ServerRequest $request )
Checks if the request is POST, PUT, DELETE or PATCH and validates the CSRF token
Parameters
-
Cake\Http\ServerRequest$request - The request object.
Returns
_validateToken() protected ¶
_validateToken( Cake\Http\ServerRequest $request )
Validate the request data against the cookie token.
Parameters
-
Cake\Http\ServerRequest$request - The request to validate against.
Throws
Properties detail
$_defaultConfig ¶
Default config for the CSRF handling.
cookieNameThe name of the cookie to send.expiryA strotime compatible value of how long the CSRF token should last. Defaults to browser session.secureWhether or not the cookie will be set with the Secure flag. Defaults to false.httpOnlyWhether or not the cookie will be set with the HttpOnly flag. Defaults to false.fieldThe form field to check. Changing this will also require configuring FormHelper.
[
'cookieName' => 'csrfToken',
'expiry' => 0,
'secure' => false,
'httpOnly' => false,
'field' => '_csrfToken',
]