Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file /src/Core/Authentication.php
*/
namespace Friendica\App;
use Exception;
use Friendica\App;
use Friendica\Core\Config\IConfiguration;
use Friendica\Core\Config\IPConfiguration;
use Friendica\Core\Hook;
use Friendica\Core\Session;
use Friendica\Core\System;
use Friendica\Database\Database;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Network\HTTPException;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\Strings;
use LightOpenID;
use Friendica\Core\L10n\L10n;
use Psr\Log\LoggerInterface;
/**
* Handle Authentification, Session and Cookies
*/
class Authentication
{
/** @var IConfiguration */
private $config;
/** @var App\Mode */
private $mode;
/** @var App\BaseURL */
private $baseUrl;
/** @var L10n */
private $l10n;
/** @var Database */
private $dba;
/** @var LoggerInterface */
private $logger;
/** @var User\Cookie */
private $cookie;
/** @var Session\ISession */
private $session;
/** @var IPConfiguration */
private $pConfig;
/**
* Authentication constructor.
*
* @param IConfiguration $config
* @param App\Mode $mode
* @param App\BaseURL $baseUrl
* @param L10n $l10n
* @param Database $dba
* @param LoggerInterface $logger
* @param User\Cookie $cookie
* @param Session\ISession $session
* @param IPConfiguration $pConfig
*/
public function __construct(IConfiguration $config, App\Mode $mode, App\BaseURL $baseUrl, L10n $l10n, Database $dba, LoggerInterface $logger, User\Cookie $cookie, Session\ISession $session, IPConfiguration $pConfig)
{
$this->config = $config;
$this->mode = $mode;
$this->baseUrl = $baseUrl;
$this->l10n = $l10n;
$this->dba = $dba;
$this->logger = $logger;
$this->cookie = $cookie;
$this->session = $session;
$this->pConfig = $pConfig;
}
/**
* @brief Tries to auth the user from the cookie or session
*
* @param App $a The Friendica Application context
*
* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
* @throws Exception In case of general exceptions (like SQL Grammar)
*/
public function withSession(App $a)
{
$data = $this->cookie->getData();
// When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
if (isset($data->uid)) {
$user = $this->dba->selectFirst(
'user',
[],
[
'uid' => $data->uid,
'blocked' => false,
'account_expired' => false,
'account_removed' => false,
'verified' => true,
]
);
if ($this->dba->isResult($user)) {
if (!$this->cookie->check($data->hash,
$user['password'] ?? '',
$user['prvkey'] ?? '')) {
$this->logger->notice("Hash doesn't fit.", ['user' => $data->uid]);
$this->session->clear();
$this->cookie->clear();
$this->baseUrl->redirect();
}
// Renew the cookie
$this->cookie->set($user['uid'], $user['password'], $user['prvkey']);
// Do the authentification if not done by now
if (!$this->session->get('authenticated')) {
$this->setForUser($a, $user);
if ($this->config->get('system', 'paranoia')) {
$this->session->set('addr', $data->ip);
}
}
}
}
if ($this->session->get('authenticated')) {
if ($this->session->get('visitor_id') && !$this->session->get('uid')) {
$contact = $this->dba->selectFirst('contact', [], ['id' => $this->session->get('visitor_id')]);
if ($this->dba->isResult($contact)) {
$a->contact = $contact;
}
}
if ($this->session->get('uid')) {
// already logged in user returning
$check = $this->config->get('system', 'paranoia');
// extra paranoia - if the IP changed, log them out
if ($check && ($this->session->get('addr') != $_SERVER['REMOTE_ADDR'])) {
$this->logger->notice('Session address changed. Paranoid setting in effect, blocking session. ', [
'addr' => $this->session->get('addr'),
'remote_addr' => $_SERVER['REMOTE_ADDR']]
);
$this->session->clear();
$this->baseUrl->redirect();
}
$user = $this->dba->selectFirst(
'user',
[],
[
'uid' => $this->session->get('uid'),
'blocked' => false,
'account_expired' => false,
'account_removed' => false,
'verified' => true,
]
);
if (!$this->dba->isResult($user)) {
$this->session->clear();
$this->baseUrl->redirect();
}
// Make sure to refresh the last login time for the user if the user
// stays logged in for a long time, e.g. with "Remember Me"
$login_refresh = false;
if (!$this->session->get('last_login_date')) {
$this->session->set('last_login_date', DateTimeFormat::utcNow());
}
if (strcmp(DateTimeFormat::utc('now - 12 hours'), $this->session->get('last_login_date')) > 0) {
$this->session->set('last_login_date', DateTimeFormat::utcNow());
$login_refresh = true;
}
$this->setForUser($a, $user, false, false, $login_refresh);
}
}
}
/**
* Attempts to authenticate using OpenId
*
* @param string $openid_url OpenID URL string
* @param bool $remember Whether to set the session remember flag
*
* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
*/
public function withOpenId(string $openid_url, bool $remember)
{
$noid = $this->config->get('system', 'no_openid');
// if it's an email address or doesn't resolve to a URL, fail.
if ($noid || strpos($openid_url, '@') || !Network::isUrlValid($openid_url)) {
notice($this->l10n->t('Login failed.') . EOL);
$this->baseUrl->redirect();
}
// Otherwise it's probably an openid.
try {
$openid = new LightOpenID($this->baseUrl->getHostname());
$openid->identity = $openid_url;
$this->session->set('openid', $openid_url);
$this->session->set('remember', $remember);
$openid->returnUrl = $this->baseUrl->get(true) . '/openid';
$openid->optional = ['namePerson/friendly', 'contact/email', 'namePerson', 'namePerson/first', 'media/image/aspect11', 'media/image/default'];
System::externalRedirect($openid->authUrl());
} catch (Exception $e) {
notice($this->l10n->t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.') . '<br /><br >' . $this->l10n->t('The error message was:') . ' ' . $e->getMessage());
}
}
/**
* Attempts to authenticate using login/password
*
* @param App $a The Friendica Application context
* @param string $username User name
* @param string $password Clear password
* @param bool $remember Whether to set the session remember flag
*
* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
* @throws Exception A general Exception (like SQL Grammar exceptions)
*/
public function withPassword(App $a, string $username, string $password, bool $remember)
{
$record = null;
$addon_auth = [
'username' => $username,
'password' => $password,
'authenticated' => 0,
'user_record' => null
];
/*
* An addon indicates successful login by setting 'authenticated' to non-zero value and returning a user record
* Addons should never set 'authenticated' except to indicate success - as hooks may be chained
* and later addons should not interfere with an earlier one that succeeded.
*/
Hook::callAll('authenticate', $addon_auth);
try {
if ($addon_auth['authenticated']) {
$record = $addon_auth['user_record'];
if (empty($record)) {
throw new Exception($this->l10n->t('Login failed.'));
}
} else {
$record = $this->dba->selectFirst(
'user',
[],
['uid' => User::getIdFromPasswordAuthentication($username, $password)]
);
}
} catch (Exception $e) {
$this->logger->warning('authenticate: failed login attempt', ['action' => 'login', 'username' => Strings::escapeTags($username), 'ip' => $_SERVER['REMOTE_ADDR']]);
info($this->l10n->t('Login failed. Please check your credentials.' . EOL));
$this->baseUrl->redirect();
}
if (!$remember) {
$this->cookie->clear();
}
// if we haven't failed up this point, log them in.
$this->session->set('remember', $remember);
$this->session->set('last_login_date', DateTimeFormat::utcNow());
$openid_identity = $this->session->get('openid_identity');
$openid_server = $this->session->get('openid_server');
if (!empty($openid_identity) || !empty($openid_server)) {
$this->dba->update('user', ['openid' => $openid_identity, 'openidserver' => $openid_server], ['uid' => $record['uid']]);
}
$this->setForUser($a, $record, true, true);
$return_path = $this->session->get('return_path', '');
$this->session->remove('return_path');
$this->baseUrl->redirect($return_path);
}
/**
* @brief Sets the provided user's authenticated session
*
* @param App $a The Friendica application context
* @param array $user_record The current "user" record
* @param bool $login_initial
* @param bool $interactive
* @param bool $login_refresh
*
* @throws HTTPException\InternalServerErrorException In case of Friendica specific exceptions
* @throws Exception In case of general Exceptions (like SQL Grammar exceptions)
*/
public function setForUser(App $a, array $user_record, bool $login_initial = false, bool $interactive = false, bool $login_refresh = false)
{
$this->session->setMultiple([
'uid' => $user_record['uid'],
'theme' => $user_record['theme'],
'mobile-theme' => $this->pConfig->get($user_record['uid'], 'system', 'mobile_theme'),
'authenticated' => 1,
'page_flags' => $user_record['page-flags'],
'my_url' => $this->baseUrl->get() . '/profile/' . $user_record['nickname'],
'my_address' => $user_record['nickname'] . '@' . substr($this->baseUrl->get(), strpos($this->baseUrl->get(), '://') + 3),
'addr' => ($_SERVER['REMOTE_ADDR'] ?? '') ?: '0.0.0.0'
]);
Session::setVisitorsContacts();
$member_since = strtotime($user_record['register_date']);
$this->session->set('new_member', time() < ($member_since + (60 * 60 * 24 * 14)));
if (strlen($user_record['timezone'])) {
date_default_timezone_set($user_record['timezone']);
$a->timezone = $user_record['timezone'];
}
$masterUid = $user_record['uid'];
if ($this->session->get('submanage')) {
$user = $this->dba->selectFirst('user', ['uid'], ['uid' => $this->session->get('submanage')]);
if ($this->dba->isResult($user)) {
$masterUid = $user['uid'];
}
}
$a->identities = User::identities($masterUid);
if ($login_initial) {
$this->logger->info('auth_identities: ' . print_r($a->identities, true));
}
if ($login_refresh) {
$this->logger->info('auth_identities refresh: ' . print_r($a->identities, true));
}
$contact = $this->dba->selectFirst('contact', [], ['uid' => $user_record['uid'], 'self' => true]);
if ($this->dba->isResult($contact)) {
$a->contact = $contact;
$a->cid = $contact['id'];
$this->session->set('cid', $a->cid);
}
header('X-Account-Management-Status: active; name="' . $user_record['username'] . '"; id="' . $user_record['nickname'] . '"');
if ($login_initial || $login_refresh) {
$this->dba->update('user', ['login_date' => DateTimeFormat::utcNow()], ['uid' => $user_record['uid']]);
// Set the login date for all identities of the user
$this->dba->update('user', ['login_date' => DateTimeFormat::utcNow()],
['parent-uid' => $masterUid, 'account_removed' => false]);
}
if ($login_initial) {
/*
* If the user specified to remember the authentication, then set a cookie
* that expires after one week (the default is when the browser is closed).
* The cookie will be renewed automatically.
* The week ensures that sessions will expire after some inactivity.
*/;
if ($this->session->get('remember')) {
$this->logger->info('Injecting cookie for remembered user ' . $user_record['nickname']);
$this->cookie->set($user_record['uid'], $user_record['password'], $user_record['prvkey']);
$this->session->remove('remember');
}
}
$this->twoFactorCheck($user_record['uid'], $a);
if ($interactive) {
if ($user_record['login_date'] <= DBA::NULL_DATETIME) {
info($this->l10n->t('Welcome %s', $user_record['username']));
info($this->l10n->t('Please upload a profile photo.'));
$this->baseUrl->redirect('profile_photo/new');
} else {
info($this->l10n->t("Welcome back %s", $user_record['username']));
}
}
$a->user = $user_record;
if ($login_initial) {
Hook::callAll('logged_in', $a->user);
if (DI::module()->getName() !== 'home' && $this->session->exists('return_path')) {
$this->baseUrl->redirect($this->session->get('return_path'));
}
}
}
/**
* @param int $uid The User Identified
* @param App $a The Friendica Application context
*
* @throws HTTPException\ForbiddenException In case the two factor authentication is forbidden (e.g. for AJAX calls)
*/
private function twoFactorCheck(int $uid, App $a)
{
// Check user setting, if 2FA disabled return
if (!$this->pConfig->get($uid, '2fa', 'verified')) {
return;
}
// Check current path, if 2fa authentication module return
if ($a->argc > 0 && in_array($a->argv[0], ['2fa', 'view', 'help', 'api', 'proxy', 'logout'])) {
return;
}
// Case 1: 2FA session present and valid: return
if ($this->session->get('2fa')) {
return;
}
// Case 2: No valid 2FA session: redirect to code verification page
if ($this->mode->isAjax()) {
throw new HTTPException\ForbiddenException();
} else {
$this->baseUrl->redirect('2fa');
}
}
}