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363 lines
8.3 KiB
PHP
363 lines
8.3 KiB
PHP
<?php
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use OTPHP\TOTP;
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class UserHelper {
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const HASH_ALGO_SSHA512 = 'SSHA-512';
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const HASH_ALGO_SSHA256 = 'SSHA-256';
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const HASH_ALGO_MODE2 = 'MODE2';
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const HASH_ALGO_SHA1X = 'SHA1X';
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const HASH_ALGO_SHA1 = 'SHA1';
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const HASH_ALGOS = [
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self::HASH_ALGO_SSHA512,
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self::HASH_ALGO_SSHA256,
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self::HASH_ALGO_MODE2,
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self::HASH_ALGO_SHA1X,
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self::HASH_ALGO_SHA1
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];
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static function authenticate(string $login = null, string $password = null, bool $check_only = false, string $service = null) {
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if (!Config::get(Config::SINGLE_USER_MODE)) {
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$user_id = false;
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$auth_module = false;
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PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_AUTH_USER,
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function ($result, $plugin) use (&$user_id, &$auth_module) {
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if ($result) {
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$user_id = (int)$result;
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$auth_module = strtolower(get_class($plugin));
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return true;
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}
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},
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$login, $password, $service);
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if ($user_id && !$check_only) {
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if (session_status() != PHP_SESSION_ACTIVE)
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session_start();
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session_regenerate_id(true);
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$user = ORM::for_table('ttrss_users')->find_one($user_id);
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if ($user) {
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$_SESSION["uid"] = $user_id;
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$_SESSION["auth_module"] = $auth_module;
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$_SESSION["name"] = $user->login;
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$_SESSION["access_level"] = $user->access_level;
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$_SESSION["csrf_token"] = bin2hex(get_random_bytes(16));
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$_SESSION["ip_address"] = UserHelper::get_user_ip();
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$_SESSION["pwd_hash"] = $user->pwd_hash;
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$user->last_login = Db::NOW();
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$user->save();
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return true;
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}
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return false;
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}
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if ($login && $password && !$user_id && !$check_only)
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Logger::log(E_USER_WARNING, "Failed login attempt for $login (service: $service) from " . UserHelper::get_user_ip());
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return false;
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} else {
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$_SESSION["uid"] = 1;
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$_SESSION["name"] = "admin";
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$_SESSION["access_level"] = 10;
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$_SESSION["hide_hello"] = true;
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$_SESSION["hide_logout"] = true;
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$_SESSION["auth_module"] = false;
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if (empty($_SESSION["csrf_token"]))
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$_SESSION["csrf_token"] = bin2hex(get_random_bytes(16));
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$_SESSION["ip_address"] = UserHelper::get_user_ip();
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return true;
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}
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}
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static function load_user_plugins(int $owner_uid, PluginHost $pluginhost = null) {
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if (!$pluginhost) $pluginhost = PluginHost::getInstance();
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if ($owner_uid && Config::get_schema_version() >= 100 && empty($_SESSION["safe_mode"])) {
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$plugins = get_pref(Prefs::_ENABLED_PLUGINS, $owner_uid);
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$pluginhost->load((string)$plugins, PluginHost::KIND_USER, $owner_uid);
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/*if (get_schema_version() > 100) {
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$pluginhost->load_data();
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}*/
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}
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}
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static function login_sequence() {
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$pdo = Db::pdo();
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if (Config::get(Config::SINGLE_USER_MODE)) {
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if (session_status() != PHP_SESSION_ACTIVE)
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session_start();
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self::authenticate("admin", null);
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startup_gettext();
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self::load_user_plugins($_SESSION["uid"]);
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} else {
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if (!\Sessions\validate_session())
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$_SESSION["uid"] = null;
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if (empty($_SESSION["uid"])) {
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if (Config::get(Config::AUTH_AUTO_LOGIN) && self::authenticate(null, null)) {
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$_SESSION["ref_schema_version"] = get_schema_version();
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} else {
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self::authenticate(null, null, true);
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}
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if (empty($_SESSION["uid"])) {
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UserHelper::logout();
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Handler_Public::_render_login_form();
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exit;
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}
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} else {
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/* bump login timestamp */
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$user = ORM::for_table('ttrss_users')->find_one($_SESSION["uid"]);
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$user->last_login = Db::NOW();
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$user->save();
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$_SESSION["last_login_update"] = time();
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}
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if ($_SESSION["uid"]) {
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startup_gettext();
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self::load_user_plugins($_SESSION["uid"]);
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}
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}
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}
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static function print_user_stylesheet() {
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$value = get_pref(Prefs::USER_STYLESHEET);
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if ($value) {
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print "<style type='text/css' id='user_css_style'>";
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print str_replace("<br/>", "\n", $value);
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print "</style>";
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}
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}
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static function get_user_ip() {
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foreach (["HTTP_X_REAL_IP", "REMOTE_ADDR"] as $hdr) {
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if (isset($_SERVER[$hdr]))
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return $_SERVER[$hdr];
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}
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return null;
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}
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static function get_login_by_id(int $id) {
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$user = ORM::for_table('ttrss_users')
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->find_one($id);
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if ($user)
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return $user->login;
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else
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return null;
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}
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static function find_user_by_login(string $login) {
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$user = ORM::for_table('ttrss_users')
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->where('login', $login)
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->find_one();
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if ($user)
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return $user->id;
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else
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return null;
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}
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static function logout() {
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if (session_status() === PHP_SESSION_ACTIVE)
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session_destroy();
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if (isset($_COOKIE[session_name()])) {
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setcookie(session_name(), '', time()-42000, '/');
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}
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session_commit();
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}
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static function get_salt() {
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return substr(bin2hex(get_random_bytes(125)), 0, 250);
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}
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static function reset_password($uid, $format_output = false, $new_password = "") {
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$user = ORM::for_table('ttrss_users')->find_one($uid);
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$message = "";
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if ($user) {
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$login = $user->login;
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$new_salt = self::get_salt();
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$tmp_user_pwd = $new_password ? $new_password : make_password();
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$pwd_hash = self::hash_password($tmp_user_pwd, $new_salt, self::HASH_ALGOS[0]);
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$user->pwd_hash = $pwd_hash;
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$user->salt = $new_salt;
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$user->save();
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$message = T_sprintf("Changed password of user %s to %s", "<strong>$login</strong>", "<strong>$tmp_user_pwd</strong>");
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} else {
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$message = __("User not found");
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}
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if ($format_output)
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print_notice($message);
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else
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print $message;
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}
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static function check_otp(int $owner_uid, int $otp_check) : bool {
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$otp = TOTP::create(self::get_otp_secret($owner_uid, true));
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return $otp->now() == $otp_check;
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}
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static function disable_otp(int $owner_uid) : bool {
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$user = ORM::for_table('ttrss_users')->find_one($owner_uid);
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if ($user) {
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$user->otp_enabled = false;
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// force new OTP secret when next enabled
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if (Config::get_schema_version() >= 143) {
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$user->otp_secret = null;
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}
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$user->save();
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return true;
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} else {
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return false;
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}
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}
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static function enable_otp(int $owner_uid, int $otp_check) : bool {
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$secret = self::get_otp_secret($owner_uid);
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if ($secret) {
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$otp = TOTP::create($secret);
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$user = ORM::for_table('ttrss_users')->find_one($owner_uid);
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if ($otp->now() == $otp_check && $user) {
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$user->otp_enabled = true;
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$user->save();
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return true;
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}
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}
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return false;
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}
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static function is_otp_enabled(int $owner_uid) : bool {
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$user = ORM::for_table('ttrss_users')->find_one($owner_uid);
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if ($user) {
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return $user->otp_enabled;
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} else {
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return false;
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}
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}
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static function get_otp_secret(int $owner_uid, bool $show_if_enabled = false) {
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$user = ORM::for_table('ttrss_users')->find_one($owner_uid);
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if ($user) {
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$salt_based_secret = mb_substr(sha1($user->salt), 0, 12);
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if (Config::get_schema_version() >= 143) {
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$secret = $user->otp_secret;
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if (empty($secret)) {
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/* migrate secret if OTP is already enabled, otherwise make a new one */
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if ($user->otp_enabled) {
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$user->otp_secret = $salt_based_secret;
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} else {
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$user->otp_secret = bin2hex(get_random_bytes(10));
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}
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$user->save();
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$secret = $user->otp_secret;
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}
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} else {
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$secret = $salt_based_secret;
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}
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if (!$user->otp_enabled || $show_if_enabled) {
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return \ParagonIE\ConstantTime\Base32::encodeUpperUnpadded($secret);
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}
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}
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return null;
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}
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static function is_default_password() {
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$authenticator = PluginHost::getInstance()->get_plugin($_SESSION["auth_module"]);
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if ($authenticator &&
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method_exists($authenticator, "check_password") &&
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$authenticator->check_password($_SESSION["uid"], "password")) {
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return true;
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}
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return false;
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}
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static function hash_password(string $pass, string $salt, string $algo = "") {
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if (!$algo) $algo = self::HASH_ALGOS[0];
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$pass_hash = "";
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switch ($algo) {
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case self::HASH_ALGO_SHA1:
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$pass_hash = sha1($pass);
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break;
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case self::HASH_ALGO_SHA1X:
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$pass_hash = sha1("$salt:$pass");
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break;
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case self::HASH_ALGO_MODE2:
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case self::HASH_ALGO_SSHA256:
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$pass_hash = hash('sha256', $salt . $pass);
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break;
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case self::HASH_ALGO_SSHA512:
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$pass_hash = hash('sha512', $salt . $pass);
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break;
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default:
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user_error("hash_password: unknown hash algo: $algo", E_USER_ERROR);
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}
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if ($pass_hash)
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return "$algo:$pass_hash";
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else
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return false;
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}
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}
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