433 lines
12 KiB
PHP
433 lines
12 KiB
PHP
<?php
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/**
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* @file src/Module/Login.php
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*/
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namespace Friendica\Module;
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use Exception;
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use Friendica\BaseModule;
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use Friendica\Core\Authentication;
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use Friendica\Core\Config;
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use Friendica\Core\Hook;
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use Friendica\Core\L10n;
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use Friendica\Core\Logger;
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use Friendica\Core\Renderer;
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use Friendica\Core\Session;
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use Friendica\Core\System;
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use Friendica\Database\DBA;
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use Friendica\Model\User;
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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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/**
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* Login module
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*
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* @author Hypolite Petovan <hypolite@mrpetovan.com>
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*/
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class Login extends BaseModule
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{
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public static function content(array $parameters = [])
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{
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$a = self::getApp();
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if (local_user()) {
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$a->internalRedirect();
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}
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return self::form(Session::get('return_path'), intval(Config::get('config', 'register_policy')) !== \Friendica\Module\Register::CLOSED);
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}
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public static function post(array $parameters = [])
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{
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$openid_identity = Session::get('openid_identity');
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$openid_server = Session::get('openid_server');
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$return_path = Session::get('return_path');
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session_unset();
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Session::set('return_path', $return_path);
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// OpenId Login
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if (
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empty($_POST['password'])
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&& (!empty($_POST['openid_url'])
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|| !empty($_POST['username']))
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) {
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$openid_url = trim(($_POST['openid_url'] ?? '') ?: $_POST['username']);
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self::openIdAuthentication($openid_url, !empty($_POST['remember']));
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}
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if (!empty($_POST['auth-params']) && $_POST['auth-params'] === 'login') {
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self::passwordAuthentication(
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trim($_POST['username']),
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trim($_POST['password']),
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!empty($_POST['remember']),
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$openid_identity,
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$openid_server
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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 $remember Whether to set the session remember flag
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function openIdAuthentication($openid_url, $remember)
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{
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$noid = Config::get('system', 'no_openid');
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$a = self::getApp();
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// if it's an email address or doesn't resolve to a URL, fail.
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if ($noid || strpos($openid_url, '@') || !Network::isUrlValid($openid_url)) {
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notice(L10n::t('Login failed.') . EOL);
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$a->internalRedirect();
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// NOTREACHED
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}
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// Otherwise it's probably an openid.
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try {
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$openid = new LightOpenID($a->getHostName());
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$openid->identity = $openid_url;
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Session::set('openid', $openid_url);
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Session::set('remember', $remember);
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$openid->returnUrl = $a->getBaseURL(true) . '/openid';
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$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(L10n::t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.') . '<br /><br >' . 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 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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* @param string $openid_identity OpenID identity
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* @param string $openid_server OpenID URL
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function passwordAuthentication($username, $password, $remember, $openid_identity, $openid_server)
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{
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$record = null;
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$addon_auth = [
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'username' => $username,
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'password' => $password,
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'authenticated' => 0,
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'user_record' => null
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];
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$a = self::getApp();
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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(L10n::t('Login failed.'));
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}
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} else {
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$record = DBA::selectFirst(
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'user',
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[],
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['uid' => User::getIdFromPasswordAuthentication($username, $password)]
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);
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}
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} catch (Exception $e) {
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Logger::warning('authenticate: failed login attempt', ['action' => 'login', 'username' => Strings::escapeTags($username), 'ip' => $_SERVER['REMOTE_ADDR']]);
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info('Login failed. Please check your credentials.' . EOL);
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$a->internalRedirect();
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}
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if (!$remember) {
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Authentication::setCookie(0); // 0 means delete on browser exit
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}
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// if we haven't failed up this point, log them in.
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Session::set('remember', $remember);
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Session::set('last_login_date', DateTimeFormat::utcNow());
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if (!empty($openid_identity) || !empty($openid_server)) {
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DBA::update('user', ['openid' => $openid_identity, 'openidserver' => $openid_server], ['uid' => $record['uid']]);
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}
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Session::setAuthenticatedForUser($a, $record, true, true);
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$return_path = Session::get('return_path', '');
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Session::remove('return_path');
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$a->internalRedirect($return_path);
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}
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/**
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* @brief Tries to auth the user from the cookie or session
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*
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* @todo Should be moved to Friendica\Core\Session when it's created
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*/
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public static function sessionAuth()
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{
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$a = self::getApp();
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// When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
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if (isset($_COOKIE["Friendica"])) {
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$data = json_decode($_COOKIE["Friendica"]);
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if (isset($data->uid)) {
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$user = DBA::selectFirst(
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'user',
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[],
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[
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'uid' => $data->uid,
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'blocked' => false,
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'account_expired' => false,
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'account_removed' => false,
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'verified' => true,
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]
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);
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if (DBA::isResult($user)) {
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if (!hash_equals(
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Authentication::getCookieHashForUser($user),
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$data->hash
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)) {
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Logger::log("Hash for user " . $data->uid . " doesn't fit.");
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Authentication::deleteSession();
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$a->internalRedirect();
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}
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// Renew the cookie
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// Expires after 7 days by default,
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// can be set via system.auth_cookie_lifetime
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$authcookiedays = Config::get('system', 'auth_cookie_lifetime', 7);
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Authentication::setCookie($authcookiedays * 24 * 60 * 60, $user);
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// Do the authentification if not done by now
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if (!isset($_SESSION) || !isset($_SESSION['authenticated'])) {
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Session::setAuthenticatedForUser($a, $user);
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if (Config::get('system', 'paranoia')) {
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$_SESSION['addr'] = $data->ip;
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}
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}
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}
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}
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}
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if (!empty($_SESSION['authenticated'])) {
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if (!empty($_SESSION['visitor_id']) && empty($_SESSION['uid'])) {
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$contact = DBA::selectFirst('contact', [], ['id' => $_SESSION['visitor_id']]);
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if (DBA::isResult($contact)) {
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self::getApp()->contact = $contact;
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}
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}
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if (!empty($_SESSION['uid'])) {
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// already logged in user returning
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$check = Config::get('system', 'paranoia');
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// extra paranoia - if the IP changed, log them out
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if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
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Logger::log('Session address changed. Paranoid setting in effect, blocking session. ' .
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$_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
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Authentication::deleteSession();
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$a->internalRedirect();
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}
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$user = DBA::selectFirst(
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'user',
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[],
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[
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'uid' => $_SESSION['uid'],
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'blocked' => false,
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'account_expired' => false,
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'account_removed' => false,
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'verified' => true,
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]
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);
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if (!DBA::isResult($user)) {
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Authentication::deleteSession();
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$a->internalRedirect();
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}
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// Make sure to refresh the last login time for the user if the user
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// stays logged in for a long time, e.g. with "Remember Me"
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$login_refresh = false;
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if (empty($_SESSION['last_login_date'])) {
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$_SESSION['last_login_date'] = DateTimeFormat::utcNow();
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}
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if (strcmp(DateTimeFormat::utc('now - 12 hours'), $_SESSION['last_login_date']) > 0) {
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$_SESSION['last_login_date'] = DateTimeFormat::utcNow();
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$login_refresh = true;
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}
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Session::setAuthenticatedForUser($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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* @brief Wrapper for adding a login box.
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*
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* @param string $return_path The path relative to the base the user should be sent
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* back to after login completes
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* @param bool $register If $register == true provide a registration link.
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* This will most always depend on the value of config.register_policy.
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* @param array $hiddens optional
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*
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* @return string Returns the complete html for inserting into the page
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*
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @hooks 'login_hook' string $o
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*/
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public static function form($return_path = null, $register = false, $hiddens = [])
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{
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$a = self::getApp();
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$o = '';
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$noid = Config::get('system', 'no_openid');
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if ($noid) {
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Session::remove('openid_identity');
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Session::remove('openid_attributes');
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}
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$reg = false;
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if ($register && intval($a->getConfig()->get('config', 'register_policy')) !== Register::CLOSED) {
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$reg = [
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'title' => L10n::t('Create a New Account'),
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'desc' => L10n::t('Register'),
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'url' => self::getRegisterURL()
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];
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}
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if (is_null($return_path)) {
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$return_path = $a->query_string;
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}
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if (local_user()) {
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$tpl = Renderer::getMarkupTemplate('logout.tpl');
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} else {
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$a->page['htmlhead'] .= Renderer::replaceMacros(
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Renderer::getMarkupTemplate('login_head.tpl'),
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[
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'$baseurl' => $a->getBaseURL(true)
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]
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);
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$tpl = Renderer::getMarkupTemplate('login.tpl');
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$_SESSION['return_path'] = $return_path;
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}
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if (!empty(Session::get('openid_identity'))) {
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$openid_title = L10n::t('Your OpenID: ');
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$openid_readonly = true;
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$identity = Session::get('openid_identity');
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$username_desc = L10n::t('Please enter your username and password to add the OpenID to your existing account.');
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} else {
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$openid_title = L10n::t('Or login using OpenID: ');
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$openid_readonly = false;
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$identity = '';
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$username_desc = '';
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}
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$o .= Renderer::replaceMacros(
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$tpl,
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[
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'$dest_url' => self::getApp()->getBaseURL(true) . '/login',
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'$logout' => L10n::t('Logout'),
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'$login' => L10n::t('Login'),
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'$lname' => ['username', L10n::t('Nickname or Email: '), '', $username_desc],
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'$lpassword' => ['password', L10n::t('Password: '), '', ''],
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'$lremember' => ['remember', L10n::t('Remember me'), 0, ''],
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'$openid' => !$noid,
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'$lopenid' => ['openid_url', $openid_title, $identity, '', $openid_readonly],
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'$hiddens' => $hiddens,
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'$register' => $reg,
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'$lostpass' => L10n::t('Forgot your password?'),
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'$lostlink' => L10n::t('Password Reset'),
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'$tostitle' => L10n::t('Website Terms of Service'),
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'$toslink' => L10n::t('terms of service'),
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'$privacytitle' => L10n::t('Website Privacy Policy'),
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'$privacylink' => L10n::t('privacy policy'),
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]
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);
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Hook::callAll('login_hook', $o);
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return $o;
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}
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/**
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* Get the URL to the register page and add OpenID parameters to it
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*/
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private static function getRegisterURL()
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{
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if (empty(Session::get('openid_identity'))) {
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return 'register';
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}
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$args = [];
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$attr = Session::get('openid_attributes', []);
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if (is_array($attr) && count($attr)) {
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foreach ($attr as $k => $v) {
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if ($k === 'namePerson/friendly') {
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$nick = Strings::escapeTags(trim($v));
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}
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if ($k === 'namePerson/first') {
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$first = Strings::escapeTags(trim($v));
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}
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if ($k === 'namePerson') {
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$args['username'] = Strings::escapeTags(trim($v));
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}
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if ($k === 'contact/email') {
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$args['email'] = Strings::escapeTags(trim($v));
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}
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if ($k === 'media/image/aspect11') {
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$photosq = bin2hex(trim($v));
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}
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if ($k === 'media/image/default') {
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$photo = bin2hex(trim($v));
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}
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}
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}
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if (!empty($nick)) {
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$args['nickname'] = $nick;
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} elseif (!empty($first)) {
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$args['nickname'] = $first;
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}
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if (!empty($photosq)) {
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$args['photo'] = $photosq;
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} elseif (!empty($photo)) {
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$args['photo'] = $photo;
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}
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$args['openid_url'] = Strings::escapeTags(trim(Session::get('openid_identity')));
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return 'register?' . http_build_query($args);
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}
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}
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