SessionCSRF class

Provides an API for cross site request forgery protection.

// output somewhere in form markup when rendering a form
echo $session->CSRF->renderInput();
// when processing form (POST request), check to see if token is present
if($session->CSRF->hasValidToken()) {
  // form submission is valid
  // okay to process
} else {
  // form submission is NOT valid
  throw new WireException('CSRF check failed!');
}
// this alternative to hasValidToken() throws WireCSRFException when invalid
$session->CSRF->validate(); 

Click any linked item for full usage details and examples. Hookable methods are indicated with the icon. In addition to those shown below, the SessionCSRF class also inherits all the methods and properties of: Wire.

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Initiating

NameReturnSummary 
SessionCSRF::getSingleUseToken()
array

Get a CSRF Token name and value that can only be used once

 
SessionCSRF::getToken()
array

Get a CSRF Token name and value

 
SessionCSRF::getTokenName()
string

Get a CSRF Token name, or create one if it doesn't yet exist

 
SessionCSRF::getTokenTime()
int

Get a CSRF Token timestamp

 
SessionCSRF::getTokenValue()
string

Get a CSRF Token value as stored in the session, or create one if it doesn't yet exist

 
SessionCSRF::renderInput()
string

Render a form input[hidden] containing the token name and value, as looked for by hasValidToken()

 

Validating

NameReturnSummary 
SessionCSRF::hasValidToken()
bool

Returns true if the current POST request contains a valid CSRF token, false if not

 
SessionCSRF::validate()
bool

Throws an exception if the token is invalid

 

Additional methods and properties

In addition to the methods and properties above, SessionCSRF also inherits the methods and properties of these classes:

API reference based on ProcessWire core version 3.0.252