/**
* Log the user in if the "remember login" cookie is set
*
* The <i>remember login token</i> will be changed on every successful
* auto-login.
*/
public static function autoLogin()
{
// Don't bother trying this multiple times
if (!class_exists('SapphireTest', false) || !SapphireTest::is_running_test()) {
self::$_already_tried_to_auto_log_in = true;
}
if (strpos(Cookie::get('alc_enc'), ':') === false || Session::get("loggedInAs") || !Security::database_is_ready()) {
return;
}
if (strpos(Cookie::get('alc_enc'), ':') && Cookie::get('alc_device') && !Session::get("loggedInAs")) {
list($uid, $token) = explode(':', Cookie::get('alc_enc'), 2);
if (!$uid || !$token) {
return;
}
$deviceID = Cookie::get('alc_device');
$member = Member::get()->byID($uid);
$rememberLoginHash = null;
// check if autologin token matches
if ($member) {
$hash = $member->encryptWithUserSettings($token);
$rememberLoginHash = RememberLoginHash::get()->filter(array('MemberID' => $member->ID, 'DeviceID' => $deviceID, 'Hash' => $hash))->First();
if (!$rememberLoginHash) {
$member = null;
} else {
// Check for expired token
$expiryDate = new DateTime($rememberLoginHash->ExpiryDate);
$now = DBDatetime::now();
$now = new DateTime($now->Rfc2822());
if ($now > $expiryDate) {
$member = null;
}
}
}
if ($member) {
self::session_regenerate_id();
Session::set("loggedInAs", $member->ID);
// This lets apache rules detect whether the user has logged in
if (Member::config()->login_marker_cookie) {
Cookie::set(Member::config()->login_marker_cookie, 1, 0, null, null, false, true);
}
if ($rememberLoginHash) {
$rememberLoginHash->renew();
$tokenExpiryDays = Config::inst()->get('SilverStripe\\Security\\RememberLoginHash', 'token_expiry_days');
Cookie::set('alc_enc', $member->ID . ':' . $rememberLoginHash->getToken(), $tokenExpiryDays, null, null, false, true);
}
$member->write();
// Audit logging hook
$member->extend('memberAutoLoggedIn');
}
}
}
/**
* Deletes existing tokens for this member
* if logout_across_devices is true, all tokens are deleted, otherwise
* only the token for the provided device ID will be removed
*
* @param Member $member
* @param string $alcDevice
*/
public static function clear(Member $member, $alcDevice = null)
{
if (!$member->exists()) {
return;
}
$filter = array('MemberID' => $member->ID);
if (!static::config()->logout_across_devices && $alcDevice) {
$filter['DeviceID'] = $alcDevice;
}
RememberLoginHash::get()->filter($filter)->removeAll();
}
public function testRememberMeMultipleDevices()
{
$m1 = $this->objFromFixture('SilverStripe\\Security\\Member', 'noexpiry');
// First device
$m1->login(true);
Cookie::set('alc_device', null);
// Second device
$m1->login(true);
// Hash of first device
$firstHash = RememberLoginHash::get()->filter('MemberID', $m1->ID)->First();
$this->assertNotNull($firstHash);
// Hash of second device
$secondHash = RememberLoginHash::get()->filter('MemberID', $m1->ID)->Last();
$this->assertNotNull($secondHash);
// DeviceIDs are different
$this->assertNotEquals($firstHash->DeviceID, $secondHash->DeviceID);
// re-generates the hashes so we can get the tokens
$firstHash->Hash = $firstHash->getNewHash($m1);
$firstToken = $firstHash->getToken();
$firstHash->write();
$secondHash->Hash = $secondHash->getNewHash($m1);
$secondToken = $secondHash->getToken();
$secondHash->write();
// Accessing the login page should show the user's name straight away
$response = $this->get('Security/login', $this->session(), null, array('alc_enc' => $m1->ID . ':' . $firstToken, 'alc_device' => $firstHash->DeviceID));
$message = _t('Member.LOGGEDINAS', "You're logged in as {name}.", array('name' => $m1->FirstName));
$this->assertContains($message, $response->getBody());
$this->session()->inst_set('loggedInAs', null);
// Accessing the login page from the second device
$response = $this->get('Security/login', $this->session(), null, array('alc_enc' => $m1->ID . ':' . $secondToken, 'alc_device' => $secondHash->DeviceID));
$this->assertContains($message, $response->getBody());
$logout_across_devices = Config::inst()->get('SilverStripe\\Security\\RememberLoginHash', 'logout_across_devices');
// Logging out from the second device - only one device being logged out
Config::inst()->update('SilverStripe\\Security\\RememberLoginHash', 'logout_across_devices', false);
$response = $this->get('Security/logout', $this->session(), null, array('alc_enc' => $m1->ID . ':' . $secondToken, 'alc_device' => $secondHash->DeviceID));
$this->assertEquals(RememberLoginHash::get()->filter(array('MemberID' => $m1->ID, 'DeviceID' => $firstHash->DeviceID))->Count(), 1);
// Logging out from any device when all login hashes should be removed
Config::inst()->update('SilverStripe\\Security\\RememberLoginHash', 'logout_across_devices', true);
$m1->login(true);
$response = $this->get('Security/logout', $this->session());
$this->assertEquals(RememberLoginHash::get()->filter('MemberID', $m1->ID)->Count(), 0);
Config::inst()->update('SilverStripe\\Security\\RememberLoginHash', 'logout_across_devices', $logout_across_devices);
}
