silverstripe-framework/security/BasicAuth.php

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<?php
/**
* @package sapphire
* @subpackage security
*/
/**
* Provides an interface to HTTP basic authentication.
* @package sapphire
* @subpackage security
*/
class BasicAuth extends Object {
/**
* Used on test-environments by default,
* but can be explicitly disabled.
*
* @var boolean
*/
static protected $disabled;
/**
* Require basic authentication. Will request a username and password if none is given.
*
* @usedby Controller::init()
* @param string $realm
* @param string|array $permissionCode
* @return Member $member
*/
static function requireLogin($realm, $permissionCode) {
if(self::$disabled) return true;
if(!Security::database_is_ready()) return true;
if(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
$member = MemberAuthenticator::authenticate(array(
'Email' => $_SERVER['PHP_AUTH_USER'],
'Password' => $_SERVER['PHP_AUTH_PW'],
), null);
if($member) {
$authenticated = true;
}
}
// If we've failed the authentication mechanism, then show the login form
if(!isset($authenticated)) {
header("WWW-Authenticate: Basic realm=\"$realm\"");
header('HTTP/1.0 401 Unauthorized');
if(isset($_SERVER['PHP_AUTH_USER'])) {
echo _t('BasicAuth.ERRORNOTREC', "That username / password isn't recognised");
} else {
echo _t('BasicAuth.ENTERINFO', "Please enter a username and password.");
}
die();
}
if(!Permission::checkMember($member->ID, $permissionCode)) {
header("WWW-Authenticate: Basic realm=\"$realm\"");
header('HTTP/1.0 401 Unauthorized');
if(isset($_SERVER['PHP_AUTH_USER'])) {
echo _t('BasicAuth.ERRORNOTADMIN', "That user is not an administrator.");
}
die();
}
return $member;
}
static function disable() {
self::$disabled = true;
}
}