Basic.php

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<?php
 
namespace Sabre\HTTP\Auth;
 
class Basic extends AbstractAuth {
 
    function getCredentials() {
 
        $auth = $this->request->getHeader('Authorization');
 
        if (!$auth) {
            return null;
        }
 
        if (strtolower(substr($auth, 0, 6)) !== 'basic ') {
            return null;
        }
 
        $credentials = explode(':', base64_decode(substr($auth, 6)), 2);
 
        if (2 !== count($credentials)) {
            return null;
        }
 
        return $credentials;
 
    }
 
    function requireLogin() {
 
        $this->response->addHeader('WWW-Authenticate', 'Basic realm="' . $this->realm . '", charset="UTF-8"');
        $this->response->setStatus(401);
 
    }
 
}