96 lines
2.2 KiB
PHP
96 lines
2.2 KiB
PHP
<?php
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/**
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* @file /src/Core/Authentication.php
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*/
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namespace Friendica\Core;
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use Friendica\App;
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use Friendica\BaseObject;
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use Friendica\Network\HTTPException\ForbiddenException;
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/**
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* Handle Authentification, Session and Cookies
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*/
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class Authentication extends BaseObject
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{
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/**
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* @brief Calculate the hash that is needed for the "Friendica" cookie
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*
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* @param array $user Record from "user" table
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*
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* @return string Hashed data
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function getCookieHashForUser($user)
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{
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return hash_hmac(
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"sha256",
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hash_hmac("sha256", $user["password"], $user["prvkey"]),
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Config::get("system", "site_prvkey")
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);
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}
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/**
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* @brief Set the "Friendica" cookie
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*
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* @param int $time
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* @param array $user Record from "user" table
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function setCookie($time, $user = [])
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{
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if ($time != 0) {
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$time = $time + time();
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}
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if ($user) {
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$value = json_encode([
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"uid" => $user["uid"],
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"hash" => self::getCookieHashForUser($user),
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"ip" => ($_SERVER['REMOTE_ADDR'] ?? '') ?: '0.0.0.0'
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]);
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} else {
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$value = "";
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}
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setcookie("Friendica", $value, $time, "/", "", (Config::get('system', 'ssl_policy') == App\BaseURL::SSL_POLICY_FULL), true);
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}
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/**
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* @brief Kills the "Friendica" cookie and all session data
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*/
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public static function deleteSession()
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{
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self::setCookie(-3600); // make sure cookie is deleted on browser close, as a security measure
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session_unset();
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session_destroy();
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}
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public static function twoFactorCheck($uid, App $a)
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{
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// Check user setting, if 2FA disabled return
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if (!PConfig::get($uid, '2fa', 'verified')) {
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return;
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}
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// Check current path, if 2fa authentication 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 1: 2FA session present and valid: return
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if (Session::get('2fa')) {
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return;
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}
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// Case 2: No valid 2FA session: redirect to code verification page
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if ($a->isAjax()) {
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throw new ForbiddenException();
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} else {
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$a->internalRedirect('2fa');
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}
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}
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}
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