public CsrfTokenGenerator::get($value = '')
Generates a token based on $value, the user session, and the private key.
The generated token is based on the session of the current user. Normally, anonymous users do not have a session, so the generated token will be different on every page request. To generate a token for users without a session, manually start a session prior to calling this function.
Parameters
string $value: (optional) An additional value to base the token on.
Return value
string A 43-character URL-safe token for validation, based on the token seed, the hash salt provided by Settings::getHashSalt(), and the 'drupal_private_key' configuration variable.
See also
\Drupal\Core\Site\Settings::getHashSalt()
\Symfony\Component\HttpFoundation\Session\SessionInterface::start()
File
- core/lib/Drupal/Core/Access/CsrfTokenGenerator.php, line 63
Class
- CsrfTokenGenerator
- Generates and validates CSRF tokens.
Namespace
Drupal\Core\Access
Code
public function get($value = '') { $seed = $this->sessionMetadata->getCsrfTokenSeed(); if (empty($seed)) { $seed = Crypt::randomBytesBase64(); $this->sessionMetadata->setCsrfTokenSeed($seed); } return $this->computeToken($seed, $value); }
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