ElggPAM.php

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<?php

use Elgg\Exceptions\AuthenticationException;

class ElggPAM {

    protected $policy;

    protected $message;

    public function __construct($policy) {
        $this->policy = $policy;
    }

    public function authenticate($credentials = []) {
        
        try {
            return elgg_pam_authenticate($this->policy, $credentials);
        } catch (AuthenticationException $e) {
            $this->message = $e->getMessage();
        }
        
        return false;
    }

    public function getFailureMessage() {
        $message = _elgg_services()->translator->translate('auth:nopams');
        if (!empty($this->message)) {
            $message = $this->message;
        }

        return _elgg_services()->hooks->triggerDeprecated('fail', 'auth', $this->message, $message, "The 'fail', 'auth' hook is deprecated", '4.3');
    }
}