1402 lines
41 KiB
PHP
1402 lines
41 KiB
PHP
<?php
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/**
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* Authentication library
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*
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* Including this file will automatically try to login
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* a user by calling auth_login()
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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use dokuwiki\ErrorHandler;
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use dokuwiki\JWT;
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use dokuwiki\Utf8\PhpString;
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use dokuwiki\Extension\AuthPlugin;
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use dokuwiki\Extension\Event;
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use dokuwiki\Extension\PluginController;
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use dokuwiki\PassHash;
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use dokuwiki\Subscriptions\RegistrationSubscriptionSender;
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use phpseclib3\Crypt\AES;
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use phpseclib3\Crypt\Common\SymmetricKey;
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use phpseclib3\Exception\BadDecryptionException;
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/**
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* Initialize the auth system.
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*
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* This function is automatically called at the end of init.php
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*
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* This used to be the main() of the auth.php
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*
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* @todo backend loading maybe should be handled by the class autoloader
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* @todo maybe split into multiple functions at the XXX marked positions
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* @triggers AUTH_LOGIN_CHECK
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* @return bool
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*/
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function auth_setup()
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{
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global $conf;
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/* @var AuthPlugin $auth */
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global $auth;
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/* @var Input $INPUT */
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global $INPUT;
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global $AUTH_ACL;
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global $lang;
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/* @var PluginController $plugin_controller */
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global $plugin_controller;
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$AUTH_ACL = [];
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if (!$conf['useacl']) return false;
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// try to load auth backend from plugins
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foreach ($plugin_controller->getList('auth') as $plugin) {
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if ($conf['authtype'] === $plugin) {
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$auth = $plugin_controller->load('auth', $plugin);
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break;
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}
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}
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if (!$auth instanceof AuthPlugin) {
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msg($lang['authtempfail'], -1);
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return false;
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}
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if ($auth->success == false) {
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// degrade to unauthenticated user
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$auth = null;
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auth_logoff();
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msg($lang['authtempfail'], -1);
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return false;
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}
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// do the login either by cookie or provided credentials XXX
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$INPUT->set('http_credentials', false);
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if (!$conf['rememberme']) $INPUT->set('r', false);
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// Populate Basic Auth user/password from Authorization header
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// Note: with FastCGI, data is in REDIRECT_HTTP_AUTHORIZATION instead of HTTP_AUTHORIZATION
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$header = $INPUT->server->str('HTTP_AUTHORIZATION') ?: $INPUT->server->str('REDIRECT_HTTP_AUTHORIZATION');
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if (preg_match('~^Basic ([a-z\d/+]*={0,2})$~i', $header, $matches)) {
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$userpass = explode(':', base64_decode($matches[1]));
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[$_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']] = $userpass;
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}
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// if no credentials were given try to use HTTP auth (for SSO)
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if (!$INPUT->str('u') && empty($_COOKIE[DOKU_COOKIE]) && !empty($INPUT->server->str('PHP_AUTH_USER'))) {
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$INPUT->set('u', $INPUT->server->str('PHP_AUTH_USER'));
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$INPUT->set('p', $INPUT->server->str('PHP_AUTH_PW'));
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$INPUT->set('http_credentials', true);
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}
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// apply cleaning (auth specific user names, remove control chars)
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if (true === $auth->success) {
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$INPUT->set('u', $auth->cleanUser(stripctl($INPUT->str('u'))));
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$INPUT->set('p', stripctl($INPUT->str('p')));
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}
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if (!auth_tokenlogin()) {
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$ok = null;
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if ($auth instanceof AuthPlugin && $auth->canDo('external')) {
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$ok = $auth->trustExternal($INPUT->str('u'), $INPUT->str('p'), $INPUT->bool('r'));
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}
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if ($ok === null) {
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// external trust mechanism not in place, or returns no result,
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// then attempt auth_login
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$evdata = [
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'user' => $INPUT->str('u'),
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'password' => $INPUT->str('p'),
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'sticky' => $INPUT->bool('r'),
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'silent' => $INPUT->bool('http_credentials')
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];
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Event::createAndTrigger('AUTH_LOGIN_CHECK', $evdata, 'auth_login_wrapper');
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}
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}
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//load ACL into a global array XXX
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$AUTH_ACL = auth_loadACL();
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return true;
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}
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/**
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* Loads the ACL setup and handle user wildcards
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @return array
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*/
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function auth_loadACL()
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{
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global $config_cascade;
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global $USERINFO;
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/* @var Input $INPUT */
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global $INPUT;
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if (!is_readable($config_cascade['acl']['default'])) return [];
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$acl = file($config_cascade['acl']['default']);
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$out = [];
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foreach ($acl as $line) {
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$line = trim($line);
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if (empty($line) || ($line[0] == '#')) continue; // skip blank lines & comments
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[$id, $rest] = preg_split('/[ \t]+/', $line, 2);
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// substitute user wildcard first (its 1:1)
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if (strstr($line, '%USER%')) {
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// if user is not logged in, this ACL line is meaningless - skip it
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if (!$INPUT->server->has('REMOTE_USER')) continue;
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$id = str_replace('%USER%', cleanID($INPUT->server->str('REMOTE_USER')), $id);
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$rest = str_replace('%USER%', auth_nameencode($INPUT->server->str('REMOTE_USER')), $rest);
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}
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// substitute group wildcard (its 1:m)
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if (strstr($line, '%GROUP%')) {
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// if user is not logged in, grps is empty, no output will be added (i.e. skipped)
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if (isset($USERINFO['grps'])) {
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foreach ((array) $USERINFO['grps'] as $grp) {
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$nid = str_replace('%GROUP%', cleanID($grp), $id);
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$nrest = str_replace('%GROUP%', '@' . auth_nameencode($grp), $rest);
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$out[] = "$nid\t$nrest";
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}
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}
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} else {
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$out[] = "$id\t$rest";
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}
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}
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return $out;
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}
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/**
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* Try a token login
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*
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* @return bool true if token login succeeded
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*/
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function auth_tokenlogin()
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{
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global $USERINFO;
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global $INPUT;
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/** @var DokuWiki_Auth_Plugin $auth */
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global $auth;
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if (!$auth) return false;
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// see if header has token
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$header = '';
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if (function_exists('getallheaders')) {
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// Authorization headers are not in $_SERVER for mod_php
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$headers = array_change_key_case(getallheaders());
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if (isset($headers['authorization'])) $header = $headers['authorization'];
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} else {
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$header = $INPUT->server->str('HTTP_AUTHORIZATION');
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}
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if (!$header) return false;
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[$type, $token] = sexplode(' ', $header, 2);
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if ($type !== 'Bearer') return false;
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// check token
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try {
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$authtoken = JWT::validate($token);
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} catch (Exception $e) {
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msg(hsc($e->getMessage()), -1);
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return false;
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}
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// fetch user info from backend
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$user = $authtoken->getUser();
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$USERINFO = $auth->getUserData($user);
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if (!$USERINFO) return false;
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// the code is correct, set up user
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$INPUT->server->set('REMOTE_USER', $user);
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$_SESSION[DOKU_COOKIE]['auth']['user'] = $user;
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$_SESSION[DOKU_COOKIE]['auth']['pass'] = 'nope';
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$_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO;
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return true;
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}
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/**
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* Event hook callback for AUTH_LOGIN_CHECK
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*
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* @param array $evdata
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* @return bool
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* @throws Exception
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*/
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function auth_login_wrapper($evdata)
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{
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return auth_login(
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$evdata['user'],
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$evdata['password'],
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$evdata['sticky'],
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$evdata['silent']
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);
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}
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/**
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* This tries to login the user based on the sent auth credentials
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*
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* The authentication works like this: if a username was given
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* a new login is assumed and user/password are checked. If they
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* are correct the password is encrypted with blowfish and stored
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* together with the username in a cookie - the same info is stored
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* in the session, too. Additonally a browserID is stored in the
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* session.
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*
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* If no username was given the cookie is checked: if the username,
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* crypted password and browserID match between session and cookie
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* no further testing is done and the user is accepted
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*
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* If a cookie was found but no session info was availabe the
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* blowfish encrypted password from the cookie is decrypted and
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* together with username rechecked by calling this function again.
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*
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* On a successful login $_SERVER[REMOTE_USER] and $USERINFO
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* are set.
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*
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* @param string $user Username
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* @param string $pass Cleartext Password
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* @param bool $sticky Cookie should not expire
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* @param bool $silent Don't show error on bad auth
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* @return bool true on successful auth
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* @throws Exception
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function auth_login($user, $pass, $sticky = false, $silent = false)
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{
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global $USERINFO;
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global $conf;
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global $lang;
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/* @var AuthPlugin $auth */
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global $auth;
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/* @var Input $INPUT */
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global $INPUT;
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if (!$auth instanceof AuthPlugin) return false;
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if (!empty($user)) {
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//usual login
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if (!empty($pass) && $auth->checkPass($user, $pass)) {
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// make logininfo globally available
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$INPUT->server->set('REMOTE_USER', $user);
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$secret = auth_cookiesalt(!$sticky, true); //bind non-sticky to session
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auth_setCookie($user, auth_encrypt($pass, $secret), $sticky);
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return true;
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} else {
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//invalid credentials - log off
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if (!$silent) {
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http_status(403, 'Login failed');
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msg($lang['badlogin'], -1);
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}
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auth_logoff();
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return false;
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}
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} else {
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// read cookie information
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[$user, $sticky, $pass] = auth_getCookie();
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if ($user && $pass) {
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// we got a cookie - see if we can trust it
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// get session info
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if (isset($_SESSION[DOKU_COOKIE])) {
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$session = $_SESSION[DOKU_COOKIE]['auth'];
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if (
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isset($session) &&
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$auth->useSessionCache($user) &&
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($session['time'] >= time() - $conf['auth_security_timeout']) &&
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($session['user'] == $user) &&
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($session['pass'] == sha1($pass)) && //still crypted
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($session['buid'] == auth_browseruid())
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) {
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// he has session, cookie and browser right - let him in
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$INPUT->server->set('REMOTE_USER', $user);
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$USERINFO = $session['info']; //FIXME move all references to session
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return true;
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}
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}
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// no we don't trust it yet - recheck pass but silent
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$secret = auth_cookiesalt(!$sticky, true); //bind non-sticky to session
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$pass = auth_decrypt($pass, $secret);
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return auth_login($user, $pass, $sticky, true);
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}
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}
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//just to be sure
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auth_logoff(true);
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return false;
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}
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/**
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* Builds a pseudo UID from browser and IP data
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*
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* This is neither unique nor unfakable - still it adds some
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* security. Using the first part of the IP makes sure
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* proxy farms like AOLs are still okay.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @return string a SHA256 sum of various browser headers
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*/
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function auth_browseruid()
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{
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/* @var Input $INPUT */
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global $INPUT;
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$ip = clientIP(true);
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// convert IP string to packed binary representation
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$pip = inet_pton($ip);
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$uid = implode("\n", [
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$INPUT->server->str('HTTP_USER_AGENT'),
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$INPUT->server->str('HTTP_ACCEPT_LANGUAGE'),
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substr($pip, 0, strlen($pip) / 2), // use half of the IP address (works for both IPv4 and IPv6)
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]);
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return hash('sha256', $uid);
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}
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/**
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* Creates a random key to encrypt the password in cookies
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*
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* This function tries to read the password for encrypting
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* cookies from $conf['metadir'].'/_htcookiesalt'
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* if no such file is found a random key is created and
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* and stored in this file.
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*
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* @param bool $addsession if true, the sessionid is added to the salt
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* @param bool $secure if security is more important than keeping the old value
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* @return string
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* @throws Exception
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function auth_cookiesalt($addsession = false, $secure = false)
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{
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if (defined('SIMPLE_TEST')) {
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return 'test';
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}
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global $conf;
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$file = $conf['metadir'] . '/_htcookiesalt';
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if ($secure || !file_exists($file)) {
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$file = $conf['metadir'] . '/_htcookiesalt2';
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}
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$salt = io_readFile($file);
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if (empty($salt)) {
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$salt = bin2hex(auth_randombytes(64));
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io_saveFile($file, $salt);
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}
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if ($addsession) {
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$salt .= session_id();
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}
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return $salt;
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}
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/**
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* Return cryptographically secure random bytes.
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*
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* @param int $length number of bytes
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* @return string cryptographically secure random bytes
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* @throws Exception
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*
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* @author Niklas Keller <me@kelunik.com>
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*/
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function auth_randombytes($length)
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{
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return random_bytes($length);
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}
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/**
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* Cryptographically secure random number generator.
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*
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* @param int $min
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* @param int $max
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* @return int
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* @throws Exception
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*
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* @author Niklas Keller <me@kelunik.com>
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*/
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function auth_random($min, $max)
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{
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return random_int($min, $max);
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}
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/**
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* Encrypt data using the given secret using AES
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*
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* The mode is CBC with a random initialization vector, the key is derived
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* using pbkdf2.
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*
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* @param string $data The data that shall be encrypted
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* @param string $secret The secret/password that shall be used
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* @return string The ciphertext
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* @throws Exception
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*/
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function auth_encrypt($data, $secret)
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{
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$iv = auth_randombytes(16);
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$cipher = new AES('cbc');
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$cipher->setPassword($secret, 'pbkdf2', 'sha1', 'phpseclib');
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$cipher->setIV($iv);
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/*
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this uses the encrypted IV as IV as suggested in
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http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf, Appendix C
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for unique but necessarily random IVs. The resulting ciphertext is
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compatible to ciphertext that was created using a "normal" IV.
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*/
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return $cipher->encrypt($iv . $data);
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}
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/**
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* Decrypt the given AES ciphertext
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*
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* The mode is CBC, the key is derived using pbkdf2
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*
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* @param string $ciphertext The encrypted data
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* @param string $secret The secret/password that shall be used
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* @return string|null The decrypted data
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*/
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function auth_decrypt($ciphertext, $secret)
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{
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$iv = substr($ciphertext, 0, 16);
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$cipher = new AES('cbc');
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$cipher->setPassword($secret, 'pbkdf2', 'sha1', 'phpseclib');
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$cipher->setIV($iv);
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try {
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return $cipher->decrypt(substr($ciphertext, 16));
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} catch (BadDecryptionException $e) {
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ErrorHandler::logException($e);
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return null;
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}
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}
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|
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/**
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* Log out the current user
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*
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* This clears all authentication data and thus log the user
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* off. It also clears session data.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param bool $keepbc - when true, the breadcrumb data is not cleared
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*/
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function auth_logoff($keepbc = false)
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{
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global $conf;
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global $USERINFO;
|
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/* @var AuthPlugin $auth */
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global $auth;
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/* @var Input $INPUT */
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global $INPUT;
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// make sure the session is writable (it usually is)
|
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@session_start();
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|
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if (isset($_SESSION[DOKU_COOKIE]['auth']['user']))
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unset($_SESSION[DOKU_COOKIE]['auth']['user']);
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if (isset($_SESSION[DOKU_COOKIE]['auth']['pass']))
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unset($_SESSION[DOKU_COOKIE]['auth']['pass']);
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if (isset($_SESSION[DOKU_COOKIE]['auth']['info']))
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unset($_SESSION[DOKU_COOKIE]['auth']['info']);
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if (!$keepbc && isset($_SESSION[DOKU_COOKIE]['bc']))
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unset($_SESSION[DOKU_COOKIE]['bc']);
|
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$INPUT->server->remove('REMOTE_USER');
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$USERINFO = null; //FIXME
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$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
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setcookie(DOKU_COOKIE, '', [
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'expires' => time() - 600000,
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'path' => $cookieDir,
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'secure' => ($conf['securecookie'] && is_ssl()),
|
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'httponly' => true,
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'samesite' => $conf['samesitecookie'] ?: null, // null means browser default
|
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]);
|
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|
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if ($auth instanceof AuthPlugin) {
|
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$auth->logOff();
|
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}
|
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}
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|
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/**
|
|
* Check if a user is a manager
|
|
*
|
|
* Should usually be called without any parameters to check the current
|
|
* user.
|
|
*
|
|
* The info is available through $INFO['ismanager'], too
|
|
*
|
|
* @param string $user Username
|
|
* @param array $groups List of groups the user is in
|
|
* @param bool $adminonly when true checks if user is admin
|
|
* @param bool $recache set to true to refresh the cache
|
|
* @return bool
|
|
* @see auth_isadmin
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*/
|
|
function auth_ismanager($user = null, $groups = null, $adminonly = false, $recache = false)
|
|
{
|
|
global $conf;
|
|
global $USERINFO;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
|
|
if (!$auth instanceof AuthPlugin) return false;
|
|
if (is_null($user)) {
|
|
if (!$INPUT->server->has('REMOTE_USER')) {
|
|
return false;
|
|
} else {
|
|
$user = $INPUT->server->str('REMOTE_USER');
|
|
}
|
|
}
|
|
if (is_null($groups)) {
|
|
// checking the logged in user, or another one?
|
|
if ($USERINFO && $user === $INPUT->server->str('REMOTE_USER')) {
|
|
$groups = (array) $USERINFO['grps'];
|
|
} else {
|
|
$groups = $auth->getUserData($user);
|
|
$groups = $groups ? $groups['grps'] : [];
|
|
}
|
|
}
|
|
|
|
// prefer cached result
|
|
static $cache = [];
|
|
$cachekey = serialize([$user, $adminonly, $groups]);
|
|
if (!isset($cache[$cachekey]) || $recache) {
|
|
// check superuser match
|
|
$ok = auth_isMember($conf['superuser'], $user, $groups);
|
|
|
|
// check managers
|
|
if (!$ok && !$adminonly) {
|
|
$ok = auth_isMember($conf['manager'], $user, $groups);
|
|
}
|
|
|
|
$cache[$cachekey] = $ok;
|
|
}
|
|
|
|
return $cache[$cachekey];
|
|
}
|
|
|
|
/**
|
|
* Check if a user is admin
|
|
*
|
|
* Alias to auth_ismanager with adminonly=true
|
|
*
|
|
* The info is available through $INFO['isadmin'], too
|
|
*
|
|
* @param string $user Username
|
|
* @param array $groups List of groups the user is in
|
|
* @param bool $recache set to true to refresh the cache
|
|
* @return bool
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @see auth_ismanager()
|
|
*
|
|
*/
|
|
function auth_isadmin($user = null, $groups = null, $recache = false)
|
|
{
|
|
return auth_ismanager($user, $groups, true, $recache);
|
|
}
|
|
|
|
/**
|
|
* Match a user and his groups against a comma separated list of
|
|
* users and groups to determine membership status
|
|
*
|
|
* Note: all input should NOT be nameencoded.
|
|
*
|
|
* @param string $memberlist commaseparated list of allowed users and groups
|
|
* @param string $user user to match against
|
|
* @param array $groups groups the user is member of
|
|
* @return bool true for membership acknowledged
|
|
*/
|
|
function auth_isMember($memberlist, $user, array $groups)
|
|
{
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
if (!$auth instanceof AuthPlugin) return false;
|
|
|
|
// clean user and groups
|
|
if (!$auth->isCaseSensitive()) {
|
|
$user = PhpString::strtolower($user);
|
|
$groups = array_map([PhpString::class, 'strtolower'], $groups);
|
|
}
|
|
$user = $auth->cleanUser($user);
|
|
$groups = array_map([$auth, 'cleanGroup'], $groups);
|
|
|
|
// extract the memberlist
|
|
$members = explode(',', $memberlist);
|
|
$members = array_map('trim', $members);
|
|
$members = array_unique($members);
|
|
$members = array_filter($members);
|
|
|
|
// compare cleaned values
|
|
foreach ($members as $member) {
|
|
if ($member == '@ALL') return true;
|
|
if (!$auth->isCaseSensitive()) $member = PhpString::strtolower($member);
|
|
if ($member[0] == '@') {
|
|
$member = $auth->cleanGroup(substr($member, 1));
|
|
if (in_array($member, $groups)) return true;
|
|
} else {
|
|
$member = $auth->cleanUser($member);
|
|
if ($member == $user) return true;
|
|
}
|
|
}
|
|
|
|
// still here? not a member!
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Convinience function for auth_aclcheck()
|
|
*
|
|
* This checks the permissions for the current user
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $id page ID (needs to be resolved and cleaned)
|
|
* @return int permission level
|
|
*/
|
|
function auth_quickaclcheck($id)
|
|
{
|
|
global $conf;
|
|
global $USERINFO;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
# if no ACL is used always return upload rights
|
|
if (!$conf['useacl']) return AUTH_UPLOAD;
|
|
return auth_aclcheck($id, $INPUT->server->str('REMOTE_USER'), is_array($USERINFO) ? $USERINFO['grps'] : []);
|
|
}
|
|
|
|
/**
|
|
* Returns the maximum rights a user has for the given ID or its namespace
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @triggers AUTH_ACL_CHECK
|
|
* @param string $id page ID (needs to be resolved and cleaned)
|
|
* @param string $user Username
|
|
* @param array|null $groups Array of groups the user is in
|
|
* @return int permission level
|
|
*/
|
|
function auth_aclcheck($id, $user, $groups)
|
|
{
|
|
$data = [
|
|
'id' => $id ?? '',
|
|
'user' => $user,
|
|
'groups' => $groups
|
|
];
|
|
|
|
return Event::createAndTrigger('AUTH_ACL_CHECK', $data, 'auth_aclcheck_cb');
|
|
}
|
|
|
|
/**
|
|
* default ACL check method
|
|
*
|
|
* DO NOT CALL DIRECTLY, use auth_aclcheck() instead
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param array $data event data
|
|
* @return int permission level
|
|
*/
|
|
function auth_aclcheck_cb($data)
|
|
{
|
|
$id =& $data['id'];
|
|
$user =& $data['user'];
|
|
$groups =& $data['groups'];
|
|
|
|
global $conf;
|
|
global $AUTH_ACL;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
|
|
// if no ACL is used always return upload rights
|
|
if (!$conf['useacl']) return AUTH_UPLOAD;
|
|
if (!$auth instanceof AuthPlugin) return AUTH_NONE;
|
|
if (!is_array($AUTH_ACL)) return AUTH_NONE;
|
|
|
|
//make sure groups is an array
|
|
if (!is_array($groups)) $groups = [];
|
|
|
|
//if user is superuser or in superusergroup return 255 (acl_admin)
|
|
if (auth_isadmin($user, $groups)) {
|
|
return AUTH_ADMIN;
|
|
}
|
|
|
|
if (!$auth->isCaseSensitive()) {
|
|
$user = PhpString::strtolower($user);
|
|
$groups = array_map([PhpString::class, 'strtolower'], $groups);
|
|
}
|
|
$user = auth_nameencode($auth->cleanUser($user));
|
|
$groups = array_map([$auth, 'cleanGroup'], $groups);
|
|
|
|
//prepend groups with @ and nameencode
|
|
foreach ($groups as &$group) {
|
|
$group = '@' . auth_nameencode($group);
|
|
}
|
|
|
|
$ns = getNS($id);
|
|
$perm = -1;
|
|
|
|
//add ALL group
|
|
$groups[] = '@ALL';
|
|
|
|
//add User
|
|
if ($user) $groups[] = $user;
|
|
|
|
//check exact match first
|
|
$matches = preg_grep('/^' . preg_quote($id, '/') . '[ \t]+([^ \t]+)[ \t]+/', $AUTH_ACL);
|
|
if (count($matches)) {
|
|
foreach ($matches as $match) {
|
|
$match = preg_replace('/#.*$/', '', $match); //ignore comments
|
|
$acl = preg_split('/[ \t]+/', $match);
|
|
if (!$auth->isCaseSensitive() && $acl[1] !== '@ALL') {
|
|
$acl[1] = PhpString::strtolower($acl[1]);
|
|
}
|
|
if (!in_array($acl[1], $groups)) {
|
|
continue;
|
|
}
|
|
if ($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL!
|
|
if ($acl[2] > $perm) {
|
|
$perm = $acl[2];
|
|
}
|
|
}
|
|
if ($perm > -1) {
|
|
//we had a match - return it
|
|
return (int) $perm;
|
|
}
|
|
}
|
|
|
|
//still here? do the namespace checks
|
|
if ($ns) {
|
|
$path = $ns . ':*';
|
|
} else {
|
|
$path = '*'; //root document
|
|
}
|
|
|
|
do {
|
|
$matches = preg_grep('/^' . preg_quote($path, '/') . '[ \t]+([^ \t]+)[ \t]+/', $AUTH_ACL);
|
|
if (count($matches)) {
|
|
foreach ($matches as $match) {
|
|
$match = preg_replace('/#.*$/', '', $match); //ignore comments
|
|
$acl = preg_split('/[ \t]+/', $match);
|
|
if (!$auth->isCaseSensitive() && $acl[1] !== '@ALL') {
|
|
$acl[1] = PhpString::strtolower($acl[1]);
|
|
}
|
|
if (!in_array($acl[1], $groups)) {
|
|
continue;
|
|
}
|
|
if ($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL!
|
|
if ($acl[2] > $perm) {
|
|
$perm = $acl[2];
|
|
}
|
|
}
|
|
//we had a match - return it
|
|
if ($perm != -1) {
|
|
return (int) $perm;
|
|
}
|
|
}
|
|
//get next higher namespace
|
|
$ns = getNS($ns);
|
|
|
|
if ($path != '*') {
|
|
$path = $ns . ':*';
|
|
if ($path == ':*') $path = '*';
|
|
} else {
|
|
//we did this already
|
|
//looks like there is something wrong with the ACL
|
|
//break here
|
|
msg('No ACL setup yet! Denying access to everyone.');
|
|
return AUTH_NONE;
|
|
}
|
|
} while (1); //this should never loop endless
|
|
return AUTH_NONE;
|
|
}
|
|
|
|
/**
|
|
* Encode ASCII special chars
|
|
*
|
|
* Some auth backends allow special chars in their user and groupnames
|
|
* The special chars are encoded with this function. Only ASCII chars
|
|
* are encoded UTF-8 multibyte are left as is (different from usual
|
|
* urlencoding!).
|
|
*
|
|
* Decoding can be done with rawurldecode
|
|
*
|
|
* @author Andreas Gohr <gohr@cosmocode.de>
|
|
* @see rawurldecode()
|
|
*
|
|
* @param string $name
|
|
* @param bool $skip_group
|
|
* @return string
|
|
*/
|
|
function auth_nameencode($name, $skip_group = false)
|
|
{
|
|
global $cache_authname;
|
|
$cache =& $cache_authname;
|
|
$name = (string) $name;
|
|
|
|
// never encode wildcard FS#1955
|
|
if ($name == '%USER%') return $name;
|
|
if ($name == '%GROUP%') return $name;
|
|
|
|
if (!isset($cache[$name][$skip_group])) {
|
|
if ($skip_group && $name[0] == '@') {
|
|
$cache[$name][$skip_group] = '@' . preg_replace_callback(
|
|
'/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/',
|
|
'auth_nameencode_callback',
|
|
substr($name, 1)
|
|
);
|
|
} else {
|
|
$cache[$name][$skip_group] = preg_replace_callback(
|
|
'/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/',
|
|
'auth_nameencode_callback',
|
|
$name
|
|
);
|
|
}
|
|
}
|
|
|
|
return $cache[$name][$skip_group];
|
|
}
|
|
|
|
/**
|
|
* callback encodes the matches
|
|
*
|
|
* @param array $matches first complete match, next matching subpatterms
|
|
* @return string
|
|
*/
|
|
function auth_nameencode_callback($matches)
|
|
{
|
|
return '%' . dechex(ord(substr($matches[1], -1)));
|
|
}
|
|
|
|
/**
|
|
* Create a pronouncable password
|
|
*
|
|
* The $foruser variable might be used by plugins to run additional password
|
|
* policy checks, but is not used by the default implementation
|
|
*
|
|
* @param string $foruser username for which the password is generated
|
|
* @return string pronouncable password
|
|
* @throws Exception
|
|
*
|
|
* @link http://www.phpbuilder.com/annotate/message.php3?id=1014451
|
|
* @triggers AUTH_PASSWORD_GENERATE
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*/
|
|
function auth_pwgen($foruser = '')
|
|
{
|
|
$data = [
|
|
'password' => '',
|
|
'foruser' => $foruser
|
|
];
|
|
|
|
$evt = new Event('AUTH_PASSWORD_GENERATE', $data);
|
|
if ($evt->advise_before(true)) {
|
|
$c = 'bcdfghjklmnprstvwz'; //consonants except hard to speak ones
|
|
$v = 'aeiou'; //vowels
|
|
$a = $c . $v; //both
|
|
$s = '!$%&?+*~#-_:.;,'; // specials
|
|
|
|
//use thre syllables...
|
|
for ($i = 0; $i < 3; $i++) {
|
|
$data['password'] .= $c[auth_random(0, strlen($c) - 1)];
|
|
$data['password'] .= $v[auth_random(0, strlen($v) - 1)];
|
|
$data['password'] .= $a[auth_random(0, strlen($a) - 1)];
|
|
}
|
|
//... and add a nice number and special
|
|
$data['password'] .= $s[auth_random(0, strlen($s) - 1)] . auth_random(10, 99);
|
|
}
|
|
$evt->advise_after();
|
|
|
|
return $data['password'];
|
|
}
|
|
|
|
/**
|
|
* Sends a password to the given user
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $user Login name of the user
|
|
* @param string $password The new password in clear text
|
|
* @return bool true on success
|
|
*/
|
|
function auth_sendPassword($user, $password)
|
|
{
|
|
global $lang;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
if (!$auth instanceof AuthPlugin) return false;
|
|
|
|
$user = $auth->cleanUser($user);
|
|
$userinfo = $auth->getUserData($user, false);
|
|
|
|
if (!$userinfo['mail']) return false;
|
|
|
|
$text = rawLocale('password');
|
|
$trep = [
|
|
'FULLNAME' => $userinfo['name'],
|
|
'LOGIN' => $user,
|
|
'PASSWORD' => $password
|
|
];
|
|
|
|
$mail = new Mailer();
|
|
$mail->to($mail->getCleanName($userinfo['name']) . ' <' . $userinfo['mail'] . '>');
|
|
$mail->subject($lang['regpwmail']);
|
|
$mail->setBody($text, $trep);
|
|
return $mail->send();
|
|
}
|
|
|
|
/**
|
|
* Register a new user
|
|
*
|
|
* This registers a new user - Data is read directly from $_POST
|
|
*
|
|
* @return bool true on success, false on any error
|
|
* @throws Exception
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*/
|
|
function register()
|
|
{
|
|
global $lang;
|
|
global $conf;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
global $INPUT;
|
|
|
|
if (!$INPUT->post->bool('save')) return false;
|
|
if (!actionOK('register')) return false;
|
|
|
|
// gather input
|
|
$login = trim($auth->cleanUser($INPUT->post->str('login')));
|
|
$fullname = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/', '', $INPUT->post->str('fullname')));
|
|
$email = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/', '', $INPUT->post->str('email')));
|
|
$pass = $INPUT->post->str('pass');
|
|
$passchk = $INPUT->post->str('passchk');
|
|
|
|
if (empty($login) || empty($fullname) || empty($email)) {
|
|
msg($lang['regmissing'], -1);
|
|
return false;
|
|
}
|
|
|
|
if ($conf['autopasswd']) {
|
|
$pass = auth_pwgen($login); // automatically generate password
|
|
} elseif (empty($pass) || empty($passchk)) {
|
|
msg($lang['regmissing'], -1); // complain about missing passwords
|
|
return false;
|
|
} elseif ($pass != $passchk) {
|
|
msg($lang['regbadpass'], -1); // complain about misspelled passwords
|
|
return false;
|
|
}
|
|
|
|
//check mail
|
|
if (!mail_isvalid($email)) {
|
|
msg($lang['regbadmail'], -1);
|
|
return false;
|
|
}
|
|
|
|
//okay try to create the user
|
|
if (!$auth->triggerUserMod('create', [$login, $pass, $fullname, $email])) {
|
|
msg($lang['regfail'], -1);
|
|
return false;
|
|
}
|
|
|
|
// send notification about the new user
|
|
$subscription = new RegistrationSubscriptionSender();
|
|
$subscription->sendRegister($login, $fullname, $email);
|
|
|
|
// are we done?
|
|
if (!$conf['autopasswd']) {
|
|
msg($lang['regsuccess2'], 1);
|
|
return true;
|
|
}
|
|
|
|
// autogenerated password? then send password to user
|
|
if (auth_sendPassword($login, $pass)) {
|
|
msg($lang['regsuccess'], 1);
|
|
return true;
|
|
} else {
|
|
msg($lang['regmailfail'], -1);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update user profile
|
|
*
|
|
* @throws Exception
|
|
*
|
|
* @author Christopher Smith <chris@jalakai.co.uk>
|
|
*/
|
|
function updateprofile()
|
|
{
|
|
global $conf;
|
|
global $lang;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if (!$INPUT->post->bool('save')) return false;
|
|
if (!checkSecurityToken()) return false;
|
|
|
|
if (!actionOK('profile')) {
|
|
msg($lang['profna'], -1);
|
|
return false;
|
|
}
|
|
|
|
$changes = [];
|
|
$changes['pass'] = $INPUT->post->str('newpass');
|
|
$changes['name'] = $INPUT->post->str('fullname');
|
|
$changes['mail'] = $INPUT->post->str('email');
|
|
|
|
// check misspelled passwords
|
|
if ($changes['pass'] != $INPUT->post->str('passchk')) {
|
|
msg($lang['regbadpass'], -1);
|
|
return false;
|
|
}
|
|
|
|
// clean fullname and email
|
|
$changes['name'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/', '', $changes['name']));
|
|
$changes['mail'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/', '', $changes['mail']));
|
|
|
|
// no empty name and email (except the backend doesn't support them)
|
|
if (
|
|
(empty($changes['name']) && $auth->canDo('modName')) ||
|
|
(empty($changes['mail']) && $auth->canDo('modMail'))
|
|
) {
|
|
msg($lang['profnoempty'], -1);
|
|
return false;
|
|
}
|
|
if (!mail_isvalid($changes['mail']) && $auth->canDo('modMail')) {
|
|
msg($lang['regbadmail'], -1);
|
|
return false;
|
|
}
|
|
|
|
$changes = array_filter($changes);
|
|
|
|
// check for unavailable capabilities
|
|
if (!$auth->canDo('modName')) unset($changes['name']);
|
|
if (!$auth->canDo('modMail')) unset($changes['mail']);
|
|
if (!$auth->canDo('modPass')) unset($changes['pass']);
|
|
|
|
// anything to do?
|
|
if ($changes === []) {
|
|
msg($lang['profnochange'], -1);
|
|
return false;
|
|
}
|
|
|
|
if ($conf['profileconfirm']) {
|
|
if (!$auth->checkPass($INPUT->server->str('REMOTE_USER'), $INPUT->post->str('oldpass'))) {
|
|
msg($lang['badpassconfirm'], -1);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!$auth->triggerUserMod('modify', [$INPUT->server->str('REMOTE_USER'), &$changes])) {
|
|
msg($lang['proffail'], -1);
|
|
return false;
|
|
}
|
|
|
|
if (array_key_exists('pass', $changes) && $changes['pass']) {
|
|
// update cookie and session with the changed data
|
|
[/* user */, $sticky, /* pass */] = auth_getCookie();
|
|
$pass = auth_encrypt($changes['pass'], auth_cookiesalt(!$sticky, true));
|
|
auth_setCookie($INPUT->server->str('REMOTE_USER'), $pass, (bool) $sticky);
|
|
} else {
|
|
// make sure the session is writable
|
|
@session_start();
|
|
// invalidate session cache
|
|
$_SESSION[DOKU_COOKIE]['auth']['time'] = 0;
|
|
session_write_close();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Delete the current logged-in user
|
|
*
|
|
* @return bool true on success, false on any error
|
|
*/
|
|
function auth_deleteprofile()
|
|
{
|
|
global $conf;
|
|
global $lang;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if (!$INPUT->post->bool('delete')) return false;
|
|
if (!checkSecurityToken()) return false;
|
|
|
|
// action prevented or auth module disallows
|
|
if (!actionOK('profile_delete') || !$auth->canDo('delUser')) {
|
|
msg($lang['profnodelete'], -1);
|
|
return false;
|
|
}
|
|
|
|
if (!$INPUT->post->bool('confirm_delete')) {
|
|
msg($lang['profconfdeletemissing'], -1);
|
|
return false;
|
|
}
|
|
|
|
if ($conf['profileconfirm']) {
|
|
if (!$auth->checkPass($INPUT->server->str('REMOTE_USER'), $INPUT->post->str('oldpass'))) {
|
|
msg($lang['badpassconfirm'], -1);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$deleted = [];
|
|
$deleted[] = $INPUT->server->str('REMOTE_USER');
|
|
if ($auth->triggerUserMod('delete', [$deleted])) {
|
|
// force and immediate logout including removing the sticky cookie
|
|
auth_logoff();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Send a new password
|
|
*
|
|
* This function handles both phases of the password reset:
|
|
*
|
|
* - handling the first request of password reset
|
|
* - validating the password reset auth token
|
|
*
|
|
* @return bool true on success, false on any error
|
|
* @throws Exception
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @author Benoit Chesneau <benoit@bchesneau.info>
|
|
* @author Chris Smith <chris@jalakai.co.uk>
|
|
*/
|
|
function act_resendpwd()
|
|
{
|
|
global $lang;
|
|
global $conf;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
/* @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if (!actionOK('resendpwd')) {
|
|
msg($lang['resendna'], -1);
|
|
return false;
|
|
}
|
|
|
|
$token = preg_replace('/[^a-f0-9]+/', '', $INPUT->str('pwauth'));
|
|
|
|
if ($token) {
|
|
// we're in token phase - get user info from token
|
|
|
|
$tfile = $conf['cachedir'] . '/' . $token[0] . '/' . $token . '.pwauth';
|
|
if (!file_exists($tfile)) {
|
|
msg($lang['resendpwdbadauth'], -1);
|
|
$INPUT->remove('pwauth');
|
|
return false;
|
|
}
|
|
// token is only valid for 3 days
|
|
if ((time() - filemtime($tfile)) > (3 * 60 * 60 * 24)) {
|
|
msg($lang['resendpwdbadauth'], -1);
|
|
$INPUT->remove('pwauth');
|
|
@unlink($tfile);
|
|
return false;
|
|
}
|
|
|
|
$user = io_readfile($tfile);
|
|
$userinfo = $auth->getUserData($user, false);
|
|
if (!$userinfo['mail']) {
|
|
msg($lang['resendpwdnouser'], -1);
|
|
return false;
|
|
}
|
|
|
|
if (!$conf['autopasswd']) { // we let the user choose a password
|
|
$pass = $INPUT->str('pass');
|
|
|
|
// password given correctly?
|
|
if (!$pass) return false;
|
|
if ($pass != $INPUT->str('passchk')) {
|
|
msg($lang['regbadpass'], -1);
|
|
return false;
|
|
}
|
|
|
|
// change it
|
|
if (!$auth->triggerUserMod('modify', [$user, ['pass' => $pass]])) {
|
|
msg($lang['proffail'], -1);
|
|
return false;
|
|
}
|
|
} else { // autogenerate the password and send by mail
|
|
$pass = auth_pwgen($user);
|
|
if (!$auth->triggerUserMod('modify', [$user, ['pass' => $pass]])) {
|
|
msg($lang['proffail'], -1);
|
|
return false;
|
|
}
|
|
|
|
if (auth_sendPassword($user, $pass)) {
|
|
msg($lang['resendpwdsuccess'], 1);
|
|
} else {
|
|
msg($lang['regmailfail'], -1);
|
|
}
|
|
}
|
|
|
|
@unlink($tfile);
|
|
return true;
|
|
} else {
|
|
// we're in request phase
|
|
|
|
if (!$INPUT->post->bool('save')) return false;
|
|
|
|
if (!$INPUT->post->str('login')) {
|
|
msg($lang['resendpwdmissing'], -1);
|
|
return false;
|
|
} else {
|
|
$user = trim($auth->cleanUser($INPUT->post->str('login')));
|
|
}
|
|
|
|
$userinfo = $auth->getUserData($user, false);
|
|
if (!$userinfo['mail']) {
|
|
msg($lang['resendpwdnouser'], -1);
|
|
return false;
|
|
}
|
|
|
|
// generate auth token
|
|
$token = md5(auth_randombytes(16)); // random secret
|
|
$tfile = $conf['cachedir'] . '/' . $token[0] . '/' . $token . '.pwauth';
|
|
$url = wl('', ['do' => 'resendpwd', 'pwauth' => $token], true, '&');
|
|
|
|
io_saveFile($tfile, $user);
|
|
|
|
$text = rawLocale('pwconfirm');
|
|
$trep = ['FULLNAME' => $userinfo['name'], 'LOGIN' => $user, 'CONFIRM' => $url];
|
|
|
|
$mail = new Mailer();
|
|
$mail->to($userinfo['name'] . ' <' . $userinfo['mail'] . '>');
|
|
$mail->subject($lang['regpwmail']);
|
|
$mail->setBody($text, $trep);
|
|
if ($mail->send()) {
|
|
msg($lang['resendpwdconfirm'], 1);
|
|
} else {
|
|
msg($lang['regmailfail'], -1);
|
|
}
|
|
return true;
|
|
}
|
|
// never reached
|
|
}
|
|
|
|
/**
|
|
* Encrypts a password using the given method and salt
|
|
*
|
|
* If the selected method needs a salt and none was given, a random one
|
|
* is chosen.
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $clear The clear text password
|
|
* @param string $method The hashing method
|
|
* @param string $salt A salt, null for random
|
|
* @return string The crypted password
|
|
*/
|
|
function auth_cryptPassword($clear, $method = '', $salt = null)
|
|
{
|
|
global $conf;
|
|
if (empty($method)) $method = $conf['passcrypt'];
|
|
|
|
$pass = new PassHash();
|
|
$call = 'hash_' . $method;
|
|
|
|
if (!method_exists($pass, $call)) {
|
|
msg("Unsupported crypt method $method", -1);
|
|
return false;
|
|
}
|
|
|
|
return $pass->$call($clear, $salt);
|
|
}
|
|
|
|
/**
|
|
* Verifies a cleartext password against a crypted hash
|
|
*
|
|
* @param string $clear The clear text password
|
|
* @param string $crypt The hash to compare with
|
|
* @return bool true if both match
|
|
* @throws Exception
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*/
|
|
function auth_verifyPassword($clear, $crypt)
|
|
{
|
|
$pass = new PassHash();
|
|
return $pass->verify_hash($clear, $crypt);
|
|
}
|
|
|
|
/**
|
|
* Set the authentication cookie and add user identification data to the session
|
|
*
|
|
* @param string $user username
|
|
* @param string $pass encrypted password
|
|
* @param bool $sticky whether or not the cookie will last beyond the session
|
|
* @return bool
|
|
*/
|
|
function auth_setCookie($user, $pass, $sticky)
|
|
{
|
|
global $conf;
|
|
/* @var AuthPlugin $auth */
|
|
global $auth;
|
|
global $USERINFO;
|
|
|
|
if (!$auth instanceof AuthPlugin) return false;
|
|
$USERINFO = $auth->getUserData($user);
|
|
|
|
// set cookie
|
|
$cookie = base64_encode($user) . '|' . ((int) $sticky) . '|' . base64_encode($pass);
|
|
$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
|
|
$time = $sticky ? (time() + 60 * 60 * 24 * 365) : 0; //one year
|
|
setcookie(DOKU_COOKIE, $cookie, [
|
|
'expires' => $time,
|
|
'path' => $cookieDir,
|
|
'secure' => ($conf['securecookie'] && is_ssl()),
|
|
'httponly' => true,
|
|
'samesite' => $conf['samesitecookie'] ?: null, // null means browser default
|
|
]);
|
|
|
|
// set session
|
|
$_SESSION[DOKU_COOKIE]['auth']['user'] = $user;
|
|
$_SESSION[DOKU_COOKIE]['auth']['pass'] = sha1($pass);
|
|
$_SESSION[DOKU_COOKIE]['auth']['buid'] = auth_browseruid();
|
|
$_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO;
|
|
$_SESSION[DOKU_COOKIE]['auth']['time'] = time();
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns the user, (encrypted) password and sticky bit from cookie
|
|
*
|
|
* @returns array
|
|
*/
|
|
function auth_getCookie()
|
|
{
|
|
if (!isset($_COOKIE[DOKU_COOKIE])) {
|
|
return [null, null, null];
|
|
}
|
|
[$user, $sticky, $pass] = sexplode('|', $_COOKIE[DOKU_COOKIE], 3, '');
|
|
$sticky = (bool) $sticky;
|
|
$pass = base64_decode($pass);
|
|
$user = base64_decode($user);
|
|
return [$user, $sticky, $pass];
|
|
}
|
|
|
|
//Setup VIM: ex: et ts=2 :
|