mirror of
https://github.com/friendica/friendica
synced 2024-12-31 23:22:19 +00:00
470 lines
15 KiB
PHP
470 lines
15 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Security;
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use Exception;
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use Friendica\App;
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use Friendica\Core\Config\IConfig;
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use Friendica\Core\PConfig\IPConfig;
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use Friendica\Core\Hook;
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use Friendica\Core\Session;
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use Friendica\Core\System;
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use Friendica\Database\Database;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\User;
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use Friendica\Network\HTTPException;
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use Friendica\Security\TwoFactor\Repository\TrustedBrowser;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\Network;
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use Friendica\Util\Strings;
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use LightOpenID;
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use Friendica\Core\L10n;
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use Friendica\Core\Logger;
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use Psr\Log\LoggerInterface;
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/**
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* Handle Authentication, Session and Cookies
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*/
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class Authentication
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{
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/** @var IConfig */
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private $config;
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/** @var App\Mode */
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private $mode;
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/** @var App\BaseURL */
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private $baseUrl;
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/** @var L10n */
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private $l10n;
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/** @var Database */
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private $dba;
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/** @var LoggerInterface */
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private $logger;
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/** @var User\Cookie */
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private $cookie;
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/** @var Session\ISession */
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private $session;
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/** @var IPConfig */
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private $pConfig;
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/**
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* Authentication constructor.
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*
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* @param IConfig $config
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* @param App\Mode $mode
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* @param App\BaseURL $baseUrl
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* @param L10n $l10n
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* @param Database $dba
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* @param LoggerInterface $logger
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* @param User\Cookie $cookie
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* @param Session\ISession $session
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* @param IPConfig $pConfig
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*/
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public function __construct(IConfig $config, App\Mode $mode, App\BaseURL $baseUrl, L10n $l10n, Database $dba, LoggerInterface $logger, User\Cookie $cookie, Session\ISession $session, IPConfig $pConfig)
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{
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$this->config = $config;
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$this->mode = $mode;
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$this->baseUrl = $baseUrl;
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$this->l10n = $l10n;
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$this->dba = $dba;
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$this->logger = $logger;
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$this->cookie = $cookie;
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$this->session = $session;
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$this->pConfig = $pConfig;
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}
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/**
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* Tries to auth the user from the cookie or session
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*
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* @param App $a The Friendica Application context
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*
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* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
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* @throws Exception In case of general exceptions (like SQL Grammar)
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*/
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public function withSession(App $a)
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{
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// When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
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if ($this->cookie->get('uid')) {
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$user = $this->dba->selectFirst(
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'user',
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[],
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[
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'uid' => $this->cookie->get('uid'),
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'blocked' => false,
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'account_expired' => false,
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'account_removed' => false,
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'verified' => true,
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]
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);
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if ($this->dba->isResult($user)) {
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if (!$this->cookie->comparePrivateDataHash($this->cookie->get('hash'),
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$user['password'] ?? '',
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$user['prvkey'] ?? '')
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) {
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$this->logger->notice("Hash doesn't fit.", ['user' => $this->cookie->get('uid')]);
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$this->session->clear();
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$this->cookie->clear();
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$this->baseUrl->redirect();
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}
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// Renew the cookie
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$this->cookie->send();
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// Do the authentification if not done by now
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if (!$this->session->get('authenticated')) {
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$this->setForUser($a, $user);
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if ($this->config->get('system', 'paranoia')) {
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$this->session->set('addr', $this->cookie->get('ip'));
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}
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}
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}
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}
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if ($this->session->get('authenticated')) {
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if ($this->session->get('visitor_id') && !$this->session->get('uid')) {
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$contact = $this->dba->selectFirst('contact', [], ['id' => $this->session->get('visitor_id')]);
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if ($this->dba->isResult($contact)) {
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$a->contact = $contact;
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}
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}
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if ($this->session->get('uid')) {
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// already logged in user returning
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$check = $this->config->get('system', 'paranoia');
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// extra paranoia - if the IP changed, log them out
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if ($check && ($this->session->get('addr') != $_SERVER['REMOTE_ADDR'])) {
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$this->logger->notice('Session address changed. Paranoid setting in effect, blocking session. ', [
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'addr' => $this->session->get('addr'),
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'remote_addr' => $_SERVER['REMOTE_ADDR']]
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);
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$this->session->clear();
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$this->baseUrl->redirect();
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}
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$user = $this->dba->selectFirst(
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'user',
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[],
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[
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'uid' => $this->session->get('uid'),
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'blocked' => false,
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'account_expired' => false,
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'account_removed' => false,
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'verified' => true,
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]
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);
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if (!$this->dba->isResult($user)) {
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$this->session->clear();
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$this->baseUrl->redirect();
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}
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// Make sure to refresh the last login time for the user if the user
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// stays logged in for a long time, e.g. with "Remember Me"
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$login_refresh = false;
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if (!$this->session->get('last_login_date')) {
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$this->session->set('last_login_date', DateTimeFormat::utcNow());
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}
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if (strcmp(DateTimeFormat::utc('now - 12 hours'), $this->session->get('last_login_date')) > 0) {
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$this->session->set('last_login_date', DateTimeFormat::utcNow());
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$login_refresh = true;
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}
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$this->setForUser($a, $user, false, false, $login_refresh);
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}
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}
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}
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/**
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* Attempts to authenticate using OpenId
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*
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* @param string $openid_url OpenID URL string
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* @param bool $remember Whether to set the session remember flag
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*
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* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
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*/
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public function withOpenId(string $openid_url, bool $remember)
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{
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$noid = $this->config->get('system', 'no_openid');
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// if it's an email address or doesn't resolve to a URL, fail.
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if ($noid || strpos($openid_url, '@') || !Network::isUrlValid($openid_url)) {
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notice($this->l10n->t('Login failed.'));
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$this->baseUrl->redirect();
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}
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// Otherwise it's probably an openid.
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try {
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$openid = new LightOpenID($this->baseUrl->getHostname());
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$openid->identity = $openid_url;
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$this->session->set('openid', $openid_url);
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$this->session->set('remember', $remember);
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$openid->returnUrl = $this->baseUrl->get(true) . '/openid';
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$openid->optional = ['namePerson/friendly', 'contact/email', 'namePerson', 'namePerson/first', 'media/image/aspect11', 'media/image/default'];
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System::externalRedirect($openid->authUrl());
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} catch (Exception $e) {
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notice($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());
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}
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}
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/**
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* Attempts to authenticate using login/password
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*
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* @param App $a The Friendica Application context
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* @param string $username User name
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* @param string $password Clear password
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* @param bool $remember Whether to set the session remember flag
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*
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* @throws HttpException\InternalServerErrorException In case of Friendica internal exceptions
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* @throws Exception A general Exception (like SQL Grammar exceptions)
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*/
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public function withPassword(App $a, string $username, string $password, bool $remember)
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{
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$record = null;
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$addon_auth = [
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'username' => $username,
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'password' => $password,
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'authenticated' => 0,
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'user_record' => null
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];
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/*
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* An addon indicates successful login by setting 'authenticated' to non-zero value and returning a user record
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* Addons should never set 'authenticated' except to indicate success - as hooks may be chained
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* and later addons should not interfere with an earlier one that succeeded.
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*/
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Hook::callAll('authenticate', $addon_auth);
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try {
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if ($addon_auth['authenticated']) {
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$record = $addon_auth['user_record'];
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if (empty($record)) {
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throw new Exception($this->l10n->t('Login failed.'));
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}
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} else {
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$record = $this->dba->selectFirst(
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'user',
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[],
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['uid' => User::getIdFromPasswordAuthentication($username, $password)]
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);
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}
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} catch (Exception $e) {
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$this->logger->warning('authenticate: failed login attempt', ['action' => 'login', 'username' => Strings::escapeTags($username), 'ip' => $_SERVER['REMOTE_ADDR']]);
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notice($this->l10n->t('Login failed. Please check your credentials.'));
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$this->baseUrl->redirect();
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}
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if (!$remember) {
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$this->cookie->clear();
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}
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// if we haven't failed up this point, log them in.
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$this->session->set('remember', $remember);
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$this->session->set('last_login_date', DateTimeFormat::utcNow());
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$openid_identity = $this->session->get('openid_identity');
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$openid_server = $this->session->get('openid_server');
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if (!empty($openid_identity) || !empty($openid_server)) {
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$this->dba->update('user', ['openid' => $openid_identity, 'openidserver' => $openid_server], ['uid' => $record['uid']]);
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}
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$this->setForUser($a, $record, true, true);
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$return_path = $this->session->get('return_path', '');
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$this->session->remove('return_path');
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$this->baseUrl->redirect($return_path);
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}
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/**
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* Sets the provided user's authenticated session
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*
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* @param App $a The Friendica application context
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* @param array $user_record The current "user" record
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* @param bool $login_initial
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* @param bool $interactive
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* @param bool $login_refresh
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*
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* @throws HTTPException\InternalServerErrorException In case of Friendica specific exceptions
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* @throws Exception In case of general Exceptions (like SQL Grammar exceptions)
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*/
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public function setForUser(App $a, array $user_record, bool $login_initial = false, bool $interactive = false, bool $login_refresh = false)
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{
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$this->session->setMultiple([
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'uid' => $user_record['uid'],
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'theme' => $user_record['theme'],
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'mobile-theme' => $this->pConfig->get($user_record['uid'], 'system', 'mobile_theme'),
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'authenticated' => 1,
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'page_flags' => $user_record['page-flags'],
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'my_url' => $this->baseUrl->get() . '/profile/' . $user_record['nickname'],
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'my_address' => $user_record['nickname'] . '@' . substr($this->baseUrl->get(), strpos($this->baseUrl->get(), '://') + 3),
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'addr' => ($_SERVER['REMOTE_ADDR'] ?? '') ?: '0.0.0.0'
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]);
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Session::setVisitorsContacts();
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$member_since = strtotime($user_record['register_date']);
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$this->session->set('new_member', time() < ($member_since + (60 * 60 * 24 * 14)));
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if (strlen($user_record['timezone'])) {
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date_default_timezone_set($user_record['timezone']);
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$a->timezone = $user_record['timezone'];
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}
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$masterUid = $user_record['uid'];
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if ($this->session->get('submanage')) {
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$user = $this->dba->selectFirst('user', ['uid'], ['uid' => $this->session->get('submanage')]);
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if ($this->dba->isResult($user)) {
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$masterUid = $user['uid'];
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}
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}
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$a->identities = User::identities($masterUid);
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if ($login_initial) {
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$this->logger->info('auth_identities: ' . print_r($a->identities, true));
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}
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if ($login_refresh) {
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$this->logger->info('auth_identities refresh: ' . print_r($a->identities, true));
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}
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$contact = $this->dba->selectFirst('contact', [], ['uid' => $user_record['uid'], 'self' => true]);
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if ($this->dba->isResult($contact)) {
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$a->contact = $contact;
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$a->cid = $contact['id'];
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$this->session->set('cid', $a->cid);
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}
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header('X-Account-Management-Status: active; name="' . $user_record['username'] . '"; id="' . $user_record['nickname'] . '"');
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if ($login_initial || $login_refresh) {
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$this->dba->update('user', ['login_date' => DateTimeFormat::utcNow()], ['uid' => $user_record['uid']]);
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// Set the login date for all identities of the user
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$this->dba->update('user', ['login_date' => DateTimeFormat::utcNow()],
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['parent-uid' => $masterUid, 'account_removed' => false]);
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}
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if ($login_initial) {
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/*
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* If the user specified to remember the authentication, then set a cookie
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* that expires after one week (the default is when the browser is closed).
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* The cookie will be renewed automatically.
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* The week ensures that sessions will expire after some inactivity.
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*/
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if ($this->session->get('remember')) {
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$this->logger->info('Injecting cookie for remembered user ' . $user_record['nickname']);
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$this->cookie->setMultiple([
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'uid' => $user_record['uid'],
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'hash' => $this->cookie->hashPrivateData($user_record['password'], $user_record['prvkey']),
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]);
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$this->session->remove('remember');
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}
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}
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$this->redirectForTwoFactorAuthentication($user_record['uid'], $a);
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if ($interactive) {
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if ($user_record['login_date'] <= DBA::NULL_DATETIME) {
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info($this->l10n->t('Welcome %s', $user_record['username']));
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info($this->l10n->t('Please upload a profile photo.'));
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$this->baseUrl->redirect('settings/profile/photo/new');
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}
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}
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$a->user = $user_record;
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if ($login_initial) {
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Hook::callAll('logged_in', $a->user);
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if (DI::module()->getName() !== 'home' && $this->session->exists('return_path')) {
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$this->baseUrl->redirect($this->session->get('return_path'));
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}
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}
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}
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/**
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* Decides whether to redirect the user to two-factor authentication.
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* All return calls in this method skip two-factor authentication
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*
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* @param int $uid The User Identified
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* @param App $a The Friendica Application context
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*
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* @throws HTTPException\ForbiddenException In case the two factor authentication is forbidden (e.g. for AJAX calls)
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* @throws HTTPException\InternalServerErrorException
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*/
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private function redirectForTwoFactorAuthentication(int $uid, App $a)
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{
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// Check user setting, if 2FA disabled return
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if (!$this->pConfig->get($uid, '2fa', 'verified')) {
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return;
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}
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// Check current path, if public or 2fa module return
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if ($a->argc > 0 && in_array($a->argv[0], ['2fa', 'view', 'help', 'api', 'proxy', 'logout'])) {
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return;
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}
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// Case 1a: 2FA session already present: return
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if ($this->session->get('2fa')) {
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return;
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}
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// Case 1b: Check for trusted browser
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if ($this->cookie->get('trusted')) {
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// Retrieve a trusted_browser model based on cookie hash
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$trustedBrowserRepository = new TrustedBrowser($this->dba, $this->logger);
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try {
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$trustedBrowser = $trustedBrowserRepository->selectOneByHash($this->cookie->get('trusted'));
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// Verify record ownership
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if ($trustedBrowser->uid === $uid) {
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// Update last_used date
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$trustedBrowser->recordUse();
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// Save it to the database
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$trustedBrowserRepository->save($trustedBrowser);
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// Set 2fa session key and return
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$this->session->set('2fa', true);
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return;
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} else {
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// Invalid trusted cookie value, removing it
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$this->cookie->unset('trusted');
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}
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} catch (\Throwable $e) {
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// Local trusted browser record was probably removed by the user, we carry on with 2FA
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}
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}
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// Case 2: No valid 2FA session: redirect to code verification page
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if ($this->mode->isAjax()) {
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throw new HTTPException\ForbiddenException();
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} else {
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$this->baseUrl->redirect('2fa');
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}
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}
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}
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