1262 lines
37 KiB
PHP
1262 lines
37 KiB
PHP
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<?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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if(!defined('DOKU_INC')) die('meh.');
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// some ACL level defines
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define('AUTH_NONE', 0);
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define('AUTH_READ', 1);
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define('AUTH_EDIT', 2);
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define('AUTH_CREATE', 4);
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define('AUTH_UPLOAD', 8);
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define('AUTH_DELETE', 16);
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define('AUTH_ADMIN', 255);
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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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global $conf;
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/* @var DokuWiki_Auth_Plugin $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 Doku_Plugin_Controller $plugin_controller */
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global $plugin_controller;
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$AUTH_ACL = array();
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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', $plugin);
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break;
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}
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}
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if(!isset($auth) || !$auth){
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msg($lang['authtempfail'], -1);
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return false;
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}
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if ($auth->success == false) {
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// degrade to unauthenticated user
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unset($auth);
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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']) $INPUT->set('r', false);
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// handle renamed HTTP_AUTHORIZATION variable (can happen when a fix like
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// the one presented at
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// http://www.besthostratings.com/articles/http-auth-php-cgi.html is used
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// for enabling HTTP authentication with CGI/SuExec)
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if(isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']))
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$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
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// streamline HTTP auth credentials (IIS/rewrite -> mod_php)
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if(isset($_SERVER['HTTP_AUTHORIZATION'])) {
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list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) =
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explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
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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($_SERVER['PHP_AUTH_USER'])) {
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$INPUT->set('u', $_SERVER['PHP_AUTH_USER']);
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$INPUT->set('p', $_SERVER['PHP_AUTH_PW']);
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$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(!is_null($auth) && $auth->canDo('external')) {
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// external trust mechanism in place
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$auth->trustExternal($INPUT->str('u'), $INPUT->str('p'), $INPUT->bool('r'));
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} else {
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$evdata = array(
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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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trigger_event('AUTH_LOGIN_CHECK', $evdata, 'auth_login_wrapper');
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}
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//load ACL into a global array XXX
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$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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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 array();
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$acl = file($config_cascade['acl']['default']);
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$out = array();
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foreach($acl as $line) {
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$line = trim($line);
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if(empty($line) || ($line{0} == '#')) continue; // skip blank lines & comments
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list($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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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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} 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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* Event hook callback for AUTH_LOGIN_CHECK
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*
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* @param array $evdata
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* @return bool
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*/
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function auth_login_wrapper($evdata) {
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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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* @author Andreas Gohr <andi@splitbrain.org>
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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 $silent Don't show error on bad auth
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* @return bool true on successful auth
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*/
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function auth_login($user, $pass, $sticky = false, $silent = false) {
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global $USERINFO;
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global $conf;
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global $lang;
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/* @var DokuWiki_Auth_Plugin $auth */
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global $auth;
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/* @var Input $INPUT */
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global $INPUT;
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$sticky ? $sticky = true : $sticky = false; //sanity check
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if(!$auth) 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) msg($lang['badlogin'], -1);
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auth_logoff();
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return false;
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}
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} else {
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// read cookie information
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list($user, $sticky, $pass) = auth_getCookie();
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if($user && $pass) {
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// we got a cookie - see if we can trust it
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// get session info
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$session = $_SESSION[DOKU_COOKIE]['auth'];
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if(isset($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 = $session['info']; //FIXME move all references to session
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return true;
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}
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// no we don't trust it yet - recheck pass but silent
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$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 MD5 sum of various browser headers
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*/
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function auth_browseruid() {
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/* @var Input $INPUT */
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global $INPUT;
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$ip = clientIP(true);
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$uid = '';
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$uid .= $INPUT->server->str('HTTP_USER_AGENT');
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$uid .= $INPUT->server->str('HTTP_ACCEPT_CHARSET');
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$uid .= substr($ip, 0, strpos($ip, '.'));
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$uid = strtolower($uid);
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return md5($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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* @author Andreas Gohr <andi@splitbrain.org>
|
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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 $secure if security is more important than keeping the old value
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* @return string
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*/
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function auth_cookiesalt($addsession = false, $secure = false) {
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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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/**
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* Return cryptographically secure random bytes.
|
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*
|
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* @author Niklas Keller <me@kelunik.com>
|
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*
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* @param int $length number of bytes
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* @return string cryptographically secure random bytes
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*/
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function auth_randombytes($length) {
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return random_bytes($length);
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}
|
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|
|
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/**
|
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* Cryptographically secure random number generator.
|
||
|
*
|
||
|
* @author Niklas Keller <me@kelunik.com>
|
||
|
*
|
||
|
* @param int $min
|
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|
* @param int $max
|
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* @return int
|
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*/
|
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function auth_random($min, $max) {
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return random_int($min, $max);
|
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}
|
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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.
|
||
|
*
|
||
|
* @param string $data The data that shall be encrypted
|
||
|
* @param string $secret The secret/password that shall be used
|
||
|
* @return string The ciphertext
|
||
|
*/
|
||
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function auth_encrypt($data, $secret) {
|
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$iv = auth_randombytes(16);
|
||
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$cipher = new \phpseclib\Crypt\AES();
|
||
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$cipher->setPassword($secret);
|
||
|
|
||
|
/*
|
||
|
this uses the encrypted IV as IV as suggested in
|
||
|
http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf, Appendix C
|
||
|
for unique but necessarily random IVs. The resulting ciphertext is
|
||
|
compatible to ciphertext that was created using a "normal" IV.
|
||
|
*/
|
||
|
return $cipher->encrypt($iv.$data);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Decrypt the given AES ciphertext
|
||
|
*
|
||
|
* The mode is CBC, the key is derived using pbkdf2
|
||
|
*
|
||
|
* @param string $ciphertext The encrypted data
|
||
|
* @param string $secret The secret/password that shall be used
|
||
|
* @return string The decrypted data
|
||
|
*/
|
||
|
function auth_decrypt($ciphertext, $secret) {
|
||
|
$iv = substr($ciphertext, 0, 16);
|
||
|
$cipher = new \phpseclib\Crypt\AES();
|
||
|
$cipher->setPassword($secret);
|
||
|
$cipher->setIV($iv);
|
||
|
|
||
|
return $cipher->decrypt(substr($ciphertext, 16));
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Log out the current user
|
||
|
*
|
||
|
* This clears all authentication data and thus log the user
|
||
|
* off. It also clears session data.
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
*
|
||
|
* @param bool $keepbc - when true, the breadcrumb data is not cleared
|
||
|
*/
|
||
|
function auth_logoff($keepbc = false) {
|
||
|
global $conf;
|
||
|
global $USERINFO;
|
||
|
/* @var DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
/* @var Input $INPUT */
|
||
|
global $INPUT;
|
||
|
|
||
|
// make sure the session is writable (it usually is)
|
||
|
@session_start();
|
||
|
|
||
|
if(isset($_SESSION[DOKU_COOKIE]['auth']['user']))
|
||
|
unset($_SESSION[DOKU_COOKIE]['auth']['user']);
|
||
|
if(isset($_SESSION[DOKU_COOKIE]['auth']['pass']))
|
||
|
unset($_SESSION[DOKU_COOKIE]['auth']['pass']);
|
||
|
if(isset($_SESSION[DOKU_COOKIE]['auth']['info']))
|
||
|
unset($_SESSION[DOKU_COOKIE]['auth']['info']);
|
||
|
if(!$keepbc && isset($_SESSION[DOKU_COOKIE]['bc']))
|
||
|
unset($_SESSION[DOKU_COOKIE]['bc']);
|
||
|
$INPUT->server->remove('REMOTE_USER');
|
||
|
$USERINFO = null; //FIXME
|
||
|
|
||
|
$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
|
||
|
setcookie(DOKU_COOKIE, '', time() - 600000, $cookieDir, '', ($conf['securecookie'] && is_ssl()), true);
|
||
|
|
||
|
if($auth) $auth->logOff();
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
* @see auth_isadmin
|
||
|
*
|
||
|
* @param string $user Username
|
||
|
* @param array $groups List of groups the user is in
|
||
|
* @param bool $adminonly when true checks if user is admin
|
||
|
* @return bool
|
||
|
*/
|
||
|
function auth_ismanager($user = null, $groups = null, $adminonly = false) {
|
||
|
global $conf;
|
||
|
global $USERINFO;
|
||
|
/* @var DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
/* @var Input $INPUT */
|
||
|
global $INPUT;
|
||
|
|
||
|
|
||
|
if(!$auth) 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)) {
|
||
|
$groups = (array) $USERINFO['grps'];
|
||
|
}
|
||
|
|
||
|
// check superuser match
|
||
|
if(auth_isMember($conf['superuser'], $user, $groups)) return true;
|
||
|
if($adminonly) return false;
|
||
|
// check managers
|
||
|
if(auth_isMember($conf['manager'], $user, $groups)) return true;
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Check if a user is admin
|
||
|
*
|
||
|
* Alias to auth_ismanager with adminonly=true
|
||
|
*
|
||
|
* The info is available through $INFO['isadmin'], too
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
* @see auth_ismanager()
|
||
|
*
|
||
|
* @param string $user Username
|
||
|
* @param array $groups List of groups the user is in
|
||
|
* @return bool
|
||
|
*/
|
||
|
function auth_isadmin($user = null, $groups = null) {
|
||
|
return auth_ismanager($user, $groups, true);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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 DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
if(!$auth) return false;
|
||
|
|
||
|
// clean user and groups
|
||
|
if(!$auth->isCaseSensitive()) {
|
||
|
$user = utf8_strtolower($user);
|
||
|
$groups = array_map('utf8_strtolower', $groups);
|
||
|
}
|
||
|
$user = $auth->cleanUser($user);
|
||
|
$groups = array_map(array($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()) $member = utf8_strtolower($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'), $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 = array(
|
||
|
'id' => $id,
|
||
|
'user' => $user,
|
||
|
'groups' => $groups
|
||
|
);
|
||
|
|
||
|
return trigger_event('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 DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
|
||
|
// if no ACL is used always return upload rights
|
||
|
if(!$conf['useacl']) return AUTH_UPLOAD;
|
||
|
if(!$auth) return AUTH_NONE;
|
||
|
|
||
|
//make sure groups is an array
|
||
|
if(!is_array($groups)) $groups = array();
|
||
|
|
||
|
//if user is superuser or in superusergroup return 255 (acl_admin)
|
||
|
if(auth_isadmin($user, $groups)) {
|
||
|
return AUTH_ADMIN;
|
||
|
}
|
||
|
|
||
|
if(!$auth->isCaseSensitive()) {
|
||
|
$user = utf8_strtolower($user);
|
||
|
$groups = array_map('utf8_strtolower', $groups);
|
||
|
}
|
||
|
$user = auth_nameencode($auth->cleanUser($user));
|
||
|
$groups = array_map(array($auth, 'cleanGroup'), (array) $groups);
|
||
|
|
||
|
//prepend groups with @ and nameencode
|
||
|
foreach($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') {
|
||
|
$acl[1] = utf8_strtolower($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') {
|
||
|
$acl[1] = utf8_strtolower($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
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
* @link http://www.phpbuilder.com/annotate/message.php3?id=1014451
|
||
|
* @triggers AUTH_PASSWORD_GENERATE
|
||
|
*
|
||
|
* @param string $foruser username for which the password is generated
|
||
|
* @return string pronouncable password
|
||
|
*/
|
||
|
function auth_pwgen($foruser = '') {
|
||
|
$data = array(
|
||
|
'password' => '',
|
||
|
'foruser' => $foruser
|
||
|
);
|
||
|
|
||
|
$evt = new Doku_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
|
||
|
$data['password'] .= auth_random(10, 99).$s[auth_random(0, strlen($s) - 1)];
|
||
|
}
|
||
|
$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 DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
if(!$auth) return false;
|
||
|
|
||
|
$user = $auth->cleanUser($user);
|
||
|
$userinfo = $auth->getUserData($user, $requireGroups = false);
|
||
|
|
||
|
if(!$userinfo['mail']) return false;
|
||
|
|
||
|
$text = rawLocale('password');
|
||
|
$trep = array(
|
||
|
'FULLNAME' => $userinfo['name'],
|
||
|
'LOGIN' => $user,
|
||
|
'PASSWORD' => $password
|
||
|
);
|
||
|
|
||
|
$mail = new Mailer();
|
||
|
$mail->to($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
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
*
|
||
|
* @return bool true on success, false on any error
|
||
|
*/
|
||
|
function register() {
|
||
|
global $lang;
|
||
|
global $conf;
|
||
|
/* @var DokuWiki_Auth_Plugin $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(!$auth->triggerUserMod('create', array($login, $pass, $fullname, $email))) {
|
||
|
msg($lang['regfail'], -1);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// send notification about the new user
|
||
|
$subscription = new Subscription();
|
||
|
$subscription->send_register($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
|
||
|
*
|
||
|
* @author Christopher Smith <chris@jalakai.co.uk>
|
||
|
*/
|
||
|
function updateprofile() {
|
||
|
global $conf;
|
||
|
global $lang;
|
||
|
/* @var DokuWiki_Auth_Plugin $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 = array();
|
||
|
$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(!count($changes)) {
|
||
|
msg($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(!$auth->triggerUserMod('modify', array($INPUT->server->str('REMOTE_USER'), &$changes))) {
|
||
|
msg($lang['proffail'], -1);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if($changes['pass']) {
|
||
|
// update cookie and session with the changed data
|
||
|
list( /*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 DokuWiki_Auth_Plugin $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 = array();
|
||
|
$deleted[] = $INPUT->server->str('REMOTE_USER');
|
||
|
if($auth->triggerUserMod('delete', array($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
|
||
|
*
|
||
|
* @author Benoit Chesneau <benoit@bchesneau.info>
|
||
|
* @author Chris Smith <chris@jalakai.co.uk>
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
*
|
||
|
* @return bool true on success, false on any error
|
||
|
*/
|
||
|
function act_resendpwd() {
|
||
|
global $lang;
|
||
|
global $conf;
|
||
|
/* @var DokuWiki_Auth_Plugin $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, $requireGroups = false);
|
||
|
if(!$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(!$auth->triggerUserMod('modify', array($user, array('pass' => $pass)))) {
|
||
|
msg($lang['proffail'], -1);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
} else { // autogenerate the password and send by mail
|
||
|
|
||
|
$pass = auth_pwgen($user);
|
||
|
if(!$auth->triggerUserMod('modify', array($user, array('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, $requireGroups = false);
|
||
|
if(!$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('', array('do'=> 'resendpwd', 'pwauth'=> $token), true, '&');
|
||
|
|
||
|
io_saveFile($tfile, $user);
|
||
|
|
||
|
$text = rawLocale('pwconfirm');
|
||
|
$trep = array(
|
||
|
'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
|
||
|
*
|
||
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
*
|
||
|
* @param string $clear The clear text password
|
||
|
* @param string $crypt The hash to compare with
|
||
|
* @return bool true if both match
|
||
|
*/
|
||
|
function auth_verifyPassword($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 DokuWiki_Auth_Plugin $auth */
|
||
|
global $auth;
|
||
|
global $USERINFO;
|
||
|
|
||
|
if(!$auth) 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, $time, $cookieDir, '', ($conf['securecookie'] && is_ssl()), true);
|
||
|
|
||
|
// 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 array(null, null, null);
|
||
|
}
|
||
|
list($user, $sticky, $pass) = explode('|', $_COOKIE[DOKU_COOKIE], 3);
|
||
|
$sticky = (bool) $sticky;
|
||
|
$pass = base64_decode($pass);
|
||
|
$user = base64_decode($user);
|
||
|
return array($user, $sticky, $pass);
|
||
|
}
|
||
|
|
||
|
//Setup VIM: ex: et ts=2 :
|