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-rw-r--r--mod/dokuwiki/vendors/dokuwiki/inc/auth.php1099
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diff --git a/mod/dokuwiki/vendors/dokuwiki/inc/auth.php b/mod/dokuwiki/vendors/dokuwiki/inc/auth.php
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+++ b/mod/dokuwiki/vendors/dokuwiki/inc/auth.php
@@ -0,0 +1,1099 @@
+<?php
+/**
+ * Authentication library
+ *
+ * Including this file will automatically try to login
+ * a user by calling auth_login()
+ *
+ * @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+
+if(!defined('DOKU_INC')) die('meh.');
+require_once(DOKU_INC.'inc/common.php');
+require_once(DOKU_INC.'inc/io.php');
+
+// some ACL level defines
+define('AUTH_NONE',0);
+define('AUTH_READ',1);
+define('AUTH_EDIT',2);
+define('AUTH_CREATE',4);
+define('AUTH_UPLOAD',8);
+define('AUTH_DELETE',16);
+define('AUTH_ADMIN',255);
+
+global $conf;
+
+if($conf['useacl']){
+ require_once(DOKU_INC.'inc/blowfish.php');
+ require_once(DOKU_INC.'inc/mail.php');
+
+ global $auth;
+
+ // load the the backend auth functions and instantiate the auth object
+ if (@file_exists(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php')) {
+ require_once(DOKU_INC.'inc/auth/basic.class.php');
+ require_once(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php');
+
+ $auth_class = "auth_".$conf['authtype'];
+ if (class_exists($auth_class)) {
+ $auth = new $auth_class();
+ if ($auth->success == false) {
+ // degrade to unauthenticated user
+ unset($auth);
+ auth_logoff();
+ msg($lang['authtempfail'], -1);
+ }
+ } else {
+ nice_die($lang['authmodfailed']);
+ }
+ } else {
+ nice_die($lang['authmodfailed']);
+ }
+}
+
+// do the login either by cookie or provided credentials
+if($conf['useacl']){
+ if($auth){
+ if (!isset($_REQUEST['u'])) $_REQUEST['u'] = '';
+ if (!isset($_REQUEST['p'])) $_REQUEST['p'] = '';
+ if (!isset($_REQUEST['r'])) $_REQUEST['r'] = '';
+ $_REQUEST['http_credentials'] = false;
+ if (!$conf['rememberme']) $_REQUEST['r'] = false;
+
+ // streamline HTTP auth credentials (IIS/rewrite -> mod_php)
+ if(isset($_SERVER['HTTP_AUTHORIZATION'])){
+ list($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW']) =
+ explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
+ }
+
+ // if no credentials were given try to use HTTP auth (for SSO)
+ if(empty($_REQUEST['u']) && empty($_COOKIE[DOKU_COOKIE]) && !empty($_SERVER['PHP_AUTH_USER'])){
+ $_REQUEST['u'] = $_SERVER['PHP_AUTH_USER'];
+ $_REQUEST['p'] = $_SERVER['PHP_AUTH_PW'];
+ $_REQUEST['http_credentials'] = true;
+ }
+
+ // apply cleaning
+ $_REQUEST['u'] = $auth->cleanUser($_REQUEST['u']);
+
+ if(isset($_REQUEST['authtok'])){
+ // when an authentication token is given, trust the session
+ auth_validateToken($_REQUEST['authtok']);
+ }elseif(!is_null($auth) && $auth->canDo('external')){
+ // external trust mechanism in place
+ $auth->trustExternal($_REQUEST['u'],$_REQUEST['p'],$_REQUEST['r']);
+ }else{
+ $evdata = array(
+ 'user' => $_REQUEST['u'],
+ 'password' => $_REQUEST['p'],
+ 'sticky' => $_REQUEST['r'],
+ 'silent' => $_REQUEST['http_credentials'],
+ );
+ $evt = new Doku_Event('AUTH_LOGIN_CHECK',$evdata);
+ if($evt->advise_before()){
+ auth_login($evdata['user'],
+ $evdata['password'],
+ $evdata['sticky'],
+ $evdata['silent']);
+ }
+ }
+ }
+
+ //load ACL into a global array
+ global $AUTH_ACL;
+ if($auth->cando['getACL']) {
+ $AUTH_ACL = $auth->getACL();
+ //support user wildcard
+ if(isset($_SERVER['REMOTE_USER'])){
+ $AUTH_ACL = str_replace('%USER%',$_SERVER['REMOTE_USER'],$AUTH_ACL);
+ $AUTH_ACL = str_replace('@USER@',$_SERVER['REMOTE_USER'],$AUTH_ACL); //legacy
+ }
+ }
+ elseif(is_readable(DOKU_CONF.'acl.auth.php')){
+ $AUTH_ACL = file(DOKU_CONF.'acl.auth.php');
+ //support user wildcard
+ if(isset($_SERVER['REMOTE_USER'])){
+ $AUTH_ACL = str_replace('%USER%',$_SERVER['REMOTE_USER'],$AUTH_ACL);
+ $AUTH_ACL = str_replace('@USER@',$_SERVER['REMOTE_USER'],$AUTH_ACL); //legacy
+ }
+ }else{
+ $AUTH_ACL = array();
+ }
+}
+
+/**
+ * This tries to login the user based on the sent auth credentials
+ *
+ * The authentication works like this: if a username was given
+ * a new login is assumed and user/password are checked. If they
+ * are correct the password is encrypted with blowfish and stored
+ * together with the username in a cookie - the same info is stored
+ * in the session, too. Additonally a browserID is stored in the
+ * session.
+ *
+ * If no username was given the cookie is checked: if the username,
+ * crypted password and browserID match between session and cookie
+ * no further testing is done and the user is accepted
+ *
+ * If a cookie was found but no session info was availabe the
+ * blowfish encrypted password from the cookie is decrypted and
+ * together with username rechecked by calling this function again.
+ *
+ * On a successful login $_SERVER[REMOTE_USER] and $USERINFO
+ * are set.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @param string $user Username
+ * @param string $pass Cleartext Password
+ * @param bool $sticky Cookie should not expire
+ * @param bool $silent Don't show error on bad auth
+ * @return bool true on successful auth
+ */
+function auth_login($user,$pass,$sticky=false,$silent=false){
+ global $USERINFO;
+ global $conf;
+ global $lang;
+ global $auth;
+ $sticky ? $sticky = true : $sticky = false; //sanity check
+
+ if (!$auth) return false;
+
+ if(!empty($user)){
+ //usual login
+ if ($auth->checkPass($user,$pass)){
+ // make logininfo globally available
+ $_SERVER['REMOTE_USER'] = $user;
+ auth_setCookie($user,PMA_blowfish_encrypt($pass,auth_cookiesalt()),$sticky);
+ return true;
+ }else{
+ //invalid credentials - log off
+ if(!$silent) msg($lang['badlogin'],-1);
+ auth_logoff();
+ return false;
+ }
+ }else{
+ // read cookie information
+ list($user,$sticky,$pass) = auth_getCookie();
+ // get session info
+ $session = $_SESSION[DOKU_COOKIE]['auth'];
+ if($user && $pass){
+ // we got a cookie - see if we can trust it
+ if(isset($session) &&
+ $auth->useSessionCache($user) &&
+ ($session['time'] >= time()-$conf['auth_security_timeout']) &&
+ ($session['user'] == $user) &&
+ ($session['pass'] == $pass) && //still crypted
+ ($session['buid'] == auth_browseruid()) ){
+ // he has session, cookie and browser right - let him in
+ $_SERVER['REMOTE_USER'] = $user;
+ $USERINFO = $session['info']; //FIXME move all references to session
+ return true;
+ }
+ // no we don't trust it yet - recheck pass but silent
+ $pass = PMA_blowfish_decrypt($pass,auth_cookiesalt());
+ return auth_login($user,$pass,$sticky,true);
+ }
+ }
+ //just to be sure
+ auth_logoff(true);
+ return false;
+}
+
+/**
+ * Checks if a given authentication token was stored in the session
+ *
+ * Will setup authentication data using data from the session if the
+ * token is correct. Will exit with a 401 Status if not.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @param string $token The authentication token
+ * @return boolean true (or will exit on failure)
+ */
+function auth_validateToken($token){
+ if(!$token || $token != $_SESSION[DOKU_COOKIE]['auth']['token']){
+ // bad token
+ header("HTTP/1.0 401 Unauthorized");
+ print 'Invalid auth token - maybe the session timed out';
+ unset($_SESSION[DOKU_COOKIE]['auth']['token']); // no second chance
+ exit;
+ }
+ // still here? trust the session data
+ global $USERINFO;
+ $_SERVER['REMOTE_USER'] = $_SESSION[DOKU_COOKIE]['auth']['user'];
+ $USERINFO = $_SESSION[DOKU_COOKIE]['auth']['info'];
+ return true;
+}
+
+/**
+ * Create an auth token and store it in the session
+ *
+ * NOTE: this is completely unrelated to the getSecurityToken() function
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @return string The auth token
+ */
+function auth_createToken(){
+ $token = md5(mt_rand());
+ @session_start(); // reopen the session if needed
+ $_SESSION[DOKU_COOKIE]['auth']['token'] = $token;
+ session_write_close();
+ return $token;
+}
+
+/**
+ * Builds a pseudo UID from browser and IP data
+ *
+ * This is neither unique nor unfakable - still it adds some
+ * security. Using the first part of the IP makes sure
+ * proxy farms like AOLs are stil okay.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @return string a MD5 sum of various browser headers
+ */
+function auth_browseruid(){
+ $ip = clientIP(true);
+ $uid = '';
+ $uid .= $_SERVER['HTTP_USER_AGENT'];
+ $uid .= $_SERVER['HTTP_ACCEPT_ENCODING'];
+ $uid .= $_SERVER['HTTP_ACCEPT_LANGUAGE'];
+ $uid .= $_SERVER['HTTP_ACCEPT_CHARSET'];
+ $uid .= substr($ip,0,strpos($ip,'.'));
+ return md5($uid);
+}
+
+/**
+ * Creates a random key to encrypt the password in cookies
+ *
+ * This function tries to read the password for encrypting
+ * cookies from $conf['metadir'].'/_htcookiesalt'
+ * if no such file is found a random key is created and
+ * and stored in this file.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @return string
+ */
+function auth_cookiesalt(){
+ global $conf;
+ $file = $conf['metadir'].'/_htcookiesalt';
+ $salt = io_readFile($file);
+ if(empty($salt)){
+ $salt = uniqid(rand(),true);
+ io_saveFile($file,$salt);
+ }
+ return $salt;
+}
+
+/**
+ * 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;
+ global $INFO, $ID;
+ global $auth;
+
+ // make sure the session is writable (it usually is)
+ @session_start();
+
+ if(isset($_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']);
+ if(isset($_SERVER['REMOTE_USER']))
+ unset($_SERVER['REMOTE_USER']);
+ $USERINFO=null; //FIXME
+
+ if (version_compare(PHP_VERSION, '5.2.0', '>')) {
+ setcookie(DOKU_COOKIE,'',time()-600000,DOKU_REL,'',($conf['securecookie'] && is_ssl()),true);
+ }else{
+ setcookie(DOKU_COOKIE,'',time()-600000,DOKU_REL,'',($conf['securecookie'] && is_ssl()));
+ }
+
+ if($auth && $auth->canDo('logoff')){
+ $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 $INFO['ismanager'], too
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @see auth_isadmin
+ * @param string user - Username
+ * @param array groups - List of groups the user is in
+ * @param bool adminonly - when true checks if user is admin
+ */
+function auth_ismanager($user=null,$groups=null,$adminonly=false){
+ global $conf;
+ global $USERINFO;
+ global $auth;
+
+ if (!$auth) return false;
+ if(is_null($user)) {
+ if (!isset($_SERVER['REMOTE_USER'])) {
+ return false;
+ } else {
+ $user = $_SERVER['REMOTE_USER'];
+ }
+ }
+ $user = $auth->cleanUser($user);
+ if(is_null($groups)) $groups = (array) $USERINFO['grps'];
+ $groups = array_map(array($auth,'cleanGroup'),$groups);
+ $user = auth_nameencode($user);
+
+ // check username against superuser and manager
+ $superusers = explode(',', $conf['superuser']);
+ $superusers = array_unique($superusers);
+ $superusers = array_map('trim', $superusers);
+ // prepare an array containing only true values for array_map call
+ $alltrue = array_fill(0, count($superusers), true);
+ $superusers = array_map('auth_nameencode', $superusers, $alltrue);
+
+ // case insensitive?
+ if(!$auth->isCaseSensitive()){
+ $superusers = array_map('utf8_strtolower',$superusers);
+ $user = utf8_strtolower($user);
+ }
+
+ // check user match
+ if(in_array($user, $superusers)) return true;
+
+ // check managers
+ if(!$adminonly){
+ $managers = explode(',', $conf['manager']);
+ $managers = array_unique($managers);
+ $managers = array_map('trim', $managers);
+ // prepare an array containing only true values for array_map call
+ $alltrue = array_fill(0, count($managers), true);
+ $managers = array_map('auth_nameencode', $managers, $alltrue);
+ if(!$auth->isCaseSensitive()) $managers = array_map('utf8_strtolower',$managers);
+ if(in_array($user, $managers)) return true;
+ }
+
+ // check user's groups against superuser and manager
+ if (!empty($groups)) {
+
+ //prepend groups with @ and nameencode
+ $cnt = count($groups);
+ for($i=0; $i<$cnt; $i++){
+ $groups[$i] = '@'.auth_nameencode($groups[$i]);
+ if(!$auth->isCaseSensitive()){
+ $groups[$i] = utf8_strtolower($groups[$i]);
+ }
+ }
+
+ // check groups against superuser and manager
+ foreach($superusers as $supu)
+ if(in_array($supu, $groups)) return true;
+ if(!$adminonly){
+ foreach($managers as $mana)
+ if(in_array($mana, $groups)) return true;
+ }
+ }
+
+ return false;
+}
+
+/**
+ * Check if a user is admin
+ *
+ * Alias to auth_ismanager with adminonly=true
+ *
+ * The info is available through $INFO['isadmin'], too
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @see auth_ismanager
+ */
+function auth_isadmin($user=null,$groups=null){
+ return auth_ismanager($user,$groups,true);
+}
+
+/**
+ * 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 $USERINFO;
+ # if no ACL is used always return upload rights
+ if(!$conf['useacl']) return AUTH_UPLOAD;
+ //error_log("DOKUWIKI: auth_quickaclcheck:".$_SERVER['REMOTE_USER'].":".$id.json_encode($USERINFO));
+ return auth_aclcheck($id,$_SERVER['REMOTE_USER'],$USERINFO['grps']);
+}
+
+/**
+ * Returns the maximum rights a user has for
+ * the given ID or its namespace
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @param string $id page ID (needs to be resolved and cleaned)
+ * @param string $user Username
+ * @param array $groups Array of groups the user is in
+ * @return int permission level
+ */
+function auth_aclcheck($id,$user,$groups){
+ global $conf;
+ global $AUTH_ACL;
+ 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; }
+
+ $ci = '';
+ if(!$auth->isCaseSensitive()) $ci = 'ui';
+
+ $user = $auth->cleanUser($user);
+ $groups = array_map(array($auth,'cleanGroup'),(array)$groups);
+ $user = auth_nameencode($user);
+
+ //prepend groups with @ and nameencode
+ $cnt = count($groups);
+ for($i=0; $i<$cnt; $i++){
+ $groups[$i] = '@'.auth_nameencode($groups[$i]);
+ }
+
+ $ns = getNS($id);
+ $perm = -1;
+
+ if($user || count($groups)){
+ //add ALL group
+ $groups[] = '@ALL';
+ //add User
+ if($user) $groups[] = $user;
+ //build regexp
+ $regexp = join('|',$groups);
+ }else{
+ $regexp = '@ALL';
+ }
+
+ //check exact match first
+ $matches = preg_grep('/^'.preg_quote($id,'/').'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL);
+ if(count($matches)){
+ foreach($matches as $match){
+ $match = preg_replace('/#.*$/','',$match); //ignore comments
+ $acl = preg_split('/\s+/',$match);
+ 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 $perm;
+ }
+ }
+
+ //still here? do the namespace checks
+ if($ns){
+ $path = $ns.':\*';
+ }else{
+ $path = '\*'; //root document
+ }
+
+ do{
+ $matches = preg_grep('/^'.$path.'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL);
+ if(count($matches)){
+ foreach($matches as $match){
+ $match = preg_replace('/#.*$/','',$match); //ignore comments
+ $acl = preg_split('/\s+/',$match);
+ 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
+ return $perm;
+ }
+
+ //get next higher namespace
+ $ns = getNS($ns);
+
+ if($path != '\*'){
+ $path = $ns.':\*';
+ if($path == ':\*') $path = '\*';
+ }else{
+ //we did this already
+ //looks like there is something wrong with the ACL
+ //break here
+ msg('No ACL setup yet! Denying access to everyone.');
+ return AUTH_NONE;
+ }
+ }while(1); //this should never loop endless
+
+ //still here? return no permissions
+ return AUTH_NONE;
+}
+
+/**
+ * Encode ASCII special chars
+ *
+ * Some auth backends allow special chars in their user and groupnames
+ * The special chars are encoded with this function. Only ASCII chars
+ * are encoded UTF-8 multibyte are left as is (different from usual
+ * urlencoding!).
+ *
+ * Decoding can be done with rawurldecode
+ *
+ * @author Andreas Gohr <gohr@cosmocode.de>
+ * @see rawurldecode()
+ */
+function auth_nameencode($name,$skip_group=false){
+ global $cache_authname;
+ $cache =& $cache_authname;
+ $name = (string) $name;
+
+ if (!isset($cache[$name][$skip_group])) {
+ if($skip_group && $name{0} =='@'){
+ $cache[$name][$skip_group] = '@'.preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e',
+ "'%'.dechex(ord(substr('\\1',-1)))",substr($name,1));
+ }else{
+ $cache[$name][$skip_group] = preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e',
+ "'%'.dechex(ord(substr('\\1',-1)))",$name);
+ }
+ }
+
+ return $cache[$name][$skip_group];
+}
+
+/**
+ * Create a pronouncable password
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @link http://www.phpbuilder.com/annotate/message.php3?id=1014451
+ *
+ * @return string pronouncable password
+ */
+function auth_pwgen(){
+ $pw = '';
+ $c = 'bcdfghjklmnprstvwz'; //consonants except hard to speak ones
+ $v = 'aeiou'; //vowels
+ $a = $c.$v; //both
+
+ //use two syllables...
+ for($i=0;$i < 2; $i++){
+ $pw .= $c[rand(0, strlen($c)-1)];
+ $pw .= $v[rand(0, strlen($v)-1)];
+ $pw .= $a[rand(0, strlen($a)-1)];
+ }
+ //... and add a nice number
+ $pw .= rand(10,99);
+
+ return $pw;
+}
+
+/**
+ * Sends a password to the given user
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ *
+ * @return bool true on success
+ */
+function auth_sendPassword($user,$password){
+ global $conf;
+ global $lang;
+ global $auth;
+ if (!$auth) return false;
+
+ $hdrs = '';
+ $user = $auth->cleanUser($user);
+ $userinfo = $auth->getUserData($user);
+
+ if(!$userinfo['mail']) return false;
+
+ $text = rawLocale('password');
+ $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
+ $text = str_replace('@FULLNAME@',$userinfo['name'],$text);
+ $text = str_replace('@LOGIN@',$user,$text);
+ $text = str_replace('@PASSWORD@',$password,$text);
+ $text = str_replace('@TITLE@',$conf['title'],$text);
+
+ return mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
+ $lang['regpwmail'],
+ $text,
+ $conf['mailfrom']);
+}
+
+/**
+ * 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;
+ global $auth;
+
+ if (!$auth) return false;
+ if(!$_POST['save']) return false;
+ if(!$auth->canDo('addUser')) return false;
+
+ //clean username
+ $_POST['login'] = trim($auth->cleanUser($_POST['login']));
+
+ //clean fullname and email
+ $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname']));
+ $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email']));
+
+ if( empty($_POST['login']) ||
+ empty($_POST['fullname']) ||
+ empty($_POST['email']) ){
+ msg($lang['regmissing'],-1);
+ return false;
+ }
+
+ if ($conf['autopasswd']) {
+ $pass = auth_pwgen(); // automatically generate password
+ } elseif (empty($_POST['pass']) ||
+ empty($_POST['passchk'])) {
+ msg($lang['regmissing'], -1); // complain about missing passwords
+ return false;
+ } elseif ($_POST['pass'] != $_POST['passchk']) {
+ msg($lang['regbadpass'], -1); // complain about misspelled passwords
+ return false;
+ } else {
+ $pass = $_POST['pass']; // accept checked and valid password
+ }
+
+ //check mail
+ if(!mail_isvalid($_POST['email'])){
+ msg($lang['regbadmail'],-1);
+ return false;
+ }
+
+ //okay try to create the user
+ if(!$auth->triggerUserMod('create', array($_POST['login'],$pass,$_POST['fullname'],$_POST['email']))){
+ msg($lang['reguexists'],-1);
+ return false;
+ }
+
+ // create substitutions for use in notification email
+ $substitutions = array(
+ 'NEWUSER' => $_POST['login'],
+ 'NEWNAME' => $_POST['fullname'],
+ 'NEWEMAIL' => $_POST['email'],
+ );
+
+ if (!$conf['autopasswd']) {
+ msg($lang['regsuccess2'],1);
+ notify('', 'register', '', $_POST['login'], false, $substitutions);
+ return true;
+ }
+
+ // autogenerated password? then send him the password
+ if (auth_sendPassword($_POST['login'],$pass)){
+ msg($lang['regsuccess'],1);
+ notify('', 'register', '', $_POST['login'], false, $substitutions);
+ return true;
+ }else{
+ msg($lang['regmailfail'],-1);
+ return false;
+ }
+}
+
+/**
+ * Update user profile
+ *
+ * @author Christopher Smith <chris@jalakai.co.uk>
+ */
+function updateprofile() {
+ global $conf;
+ global $INFO;
+ global $lang;
+ global $auth;
+
+ if (!$auth) return false;
+ if(empty($_POST['save'])) return false;
+ if(!checkSecurityToken()) return false;
+
+ // should not be able to get here without Profile being possible...
+ if(!$auth->canDo('Profile')) {
+ msg($lang['profna'],-1);
+ return false;
+ }
+
+ if ($_POST['newpass'] != $_POST['passchk']) {
+ msg($lang['regbadpass'], -1); // complain about misspelled passwords
+ return false;
+ }
+
+ //clean fullname and email
+ $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname']));
+ $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email']));
+
+ if ((empty($_POST['fullname']) && $auth->canDo('modName')) ||
+ (empty($_POST['email']) && $auth->canDo('modMail'))) {
+ msg($lang['profnoempty'],-1);
+ return false;
+ }
+
+ if (!mail_isvalid($_POST['email']) && $auth->canDo('modMail')){
+ msg($lang['regbadmail'],-1);
+ return false;
+ }
+
+ if ($_POST['fullname'] != $INFO['userinfo']['name'] && $auth->canDo('modName')) $changes['name'] = $_POST['fullname'];
+ if ($_POST['email'] != $INFO['userinfo']['mail'] && $auth->canDo('modMail')) $changes['mail'] = $_POST['email'];
+ if (!empty($_POST['newpass']) && $auth->canDo('modPass')) $changes['pass'] = $_POST['newpass'];
+
+ if (!count($changes)) {
+ msg($lang['profnochange'], -1);
+ return false;
+ }
+
+ if ($conf['profileconfirm']) {
+ if (!$auth->checkPass($_SERVER['REMOTE_USER'], $_POST['oldpass'])) {
+ msg($lang['badlogin'],-1);
+ return false;
+ }
+ }
+
+ if ($result = $auth->triggerUserMod('modify', array($_SERVER['REMOTE_USER'], $changes))) {
+ // update cookie and session with the changed data
+ $cookie = base64_decode($_COOKIE[DOKU_COOKIE]);
+ list($user,$sticky,$pass) = explode('|',$cookie,3);
+ if ($changes['pass']) $pass = PMA_blowfish_encrypt($changes['pass'],auth_cookiesalt());
+
+ auth_setCookie($_SERVER['REMOTE_USER'],$pass,(bool)$sticky);
+ return true;
+ }
+}
+
+/**
+ * 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;
+ global $auth;
+
+ if(!actionOK('resendpwd')) return false;
+ if (!$auth) return false;
+
+ // should not be able to get here without modPass being possible...
+ if(!$auth->canDo('modPass')) {
+ msg($lang['resendna'],-1);
+ return false;
+ }
+
+ $token = preg_replace('/[^a-f0-9]+/','',$_REQUEST['pwauth']);
+
+ if($token){
+ // we're in token phase
+
+ $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth';
+ if(!@file_exists($tfile)){
+ msg($lang['resendpwdbadauth'],-1);
+ return false;
+ }
+ $user = io_readfile($tfile);
+ @unlink($tfile);
+ $userinfo = $auth->getUserData($user);
+ if(!$userinfo['mail']) {
+ msg($lang['resendpwdnouser'], -1);
+ return false;
+ }
+
+ $pass = auth_pwgen();
+ if (!$auth->triggerUserMod('modify', array($user,array('pass' => $pass)))) {
+ msg('error modifying user data',-1);
+ return false;
+ }
+
+ if (auth_sendPassword($user,$pass)) {
+ msg($lang['resendpwdsuccess'],1);
+ } else {
+ msg($lang['regmailfail'],-1);
+ }
+ return true;
+
+ } else {
+ // we're in request phase
+
+ if(!$_POST['save']) return false;
+
+ if (empty($_POST['login'])) {
+ msg($lang['resendpwdmissing'], -1);
+ return false;
+ } else {
+ $user = trim($auth->cleanUser($_POST['login']));
+ }
+
+ $userinfo = $auth->getUserData($user);
+ if(!$userinfo['mail']) {
+ msg($lang['resendpwdnouser'], -1);
+ return false;
+ }
+
+ // generate auth token
+ $token = md5(auth_cookiesalt().$user); //secret but user based
+ $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth';
+ $url = wl('',array('do'=>'resendpwd','pwauth'=>$token),true,'&');
+
+ io_saveFile($tfile,$user);
+
+ $text = rawLocale('pwconfirm');
+ $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
+ $text = str_replace('@FULLNAME@',$userinfo['name'],$text);
+ $text = str_replace('@LOGIN@',$user,$text);
+ $text = str_replace('@TITLE@',$conf['title'],$text);
+ $text = str_replace('@CONFIRM@',$url,$text);
+
+ if(mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
+ $lang['regpwmail'],
+ $text,
+ $conf['mailfrom'])){
+ msg($lang['resendpwdconfirm'],1);
+ }else{
+ msg($lang['regmailfail'],-1);
+ }
+ return true;
+ }
+
+ return false; // never reached
+}
+
+/**
+ * Encrypts a password using the given method and salt
+ *
+ * If the selected method needs a salt and none was given, a random one
+ * is chosen.
+ *
+ * The following methods are understood:
+ *
+ * smd5 - Salted MD5 hashing
+ * apr1 - Apache salted MD5 hashing
+ * md5 - Simple MD5 hashing
+ * sha1 - SHA1 hashing
+ * ssha - Salted SHA1 hashing
+ * crypt - Unix crypt
+ * mysql - MySQL password (old method)
+ * my411 - MySQL 4.1.1 password
+ * kmd5 - Salted MD5 hashing as used by UNB
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @return string The crypted password
+ */
+function auth_cryptPassword($clear,$method='',$salt=null){
+ global $conf;
+ if(empty($method)) $method = $conf['passcrypt'];
+
+ //prepare a salt
+ if(is_null($salt)) $salt = md5(uniqid(rand(), true));
+
+ switch(strtolower($method)){
+ case 'smd5':
+ if(defined('CRYPT_MD5') && CRYPT_MD5) return crypt($clear,'$1$'.substr($salt,0,8).'$');
+ // when crypt can't handle SMD5, falls through to pure PHP implementation
+ $magic = '1';
+ case 'apr1':
+ //from http://de.php.net/manual/en/function.crypt.php#73619 comment by <mikey_nich at hotmail dot com>
+ if(!$magic) $magic = 'apr1';
+ $salt = substr($salt,0,8);
+ $len = strlen($clear);
+ $text = $clear.'$'.$magic.'$'.$salt;
+ $bin = pack("H32", md5($clear.$salt.$clear));
+ for($i = $len; $i > 0; $i -= 16) {
+ $text .= substr($bin, 0, min(16, $i));
+ }
+ for($i = $len; $i > 0; $i >>= 1) {
+ $text .= ($i & 1) ? chr(0) : $clear{0};
+ }
+ $bin = pack("H32", md5($text));
+ for($i = 0; $i < 1000; $i++) {
+ $new = ($i & 1) ? $clear : $bin;
+ if ($i % 3) $new .= $salt;
+ if ($i % 7) $new .= $clear;
+ $new .= ($i & 1) ? $bin : $clear;
+ $bin = pack("H32", md5($new));
+ }
+ $tmp = '';
+ for ($i = 0; $i < 5; $i++) {
+ $k = $i + 6;
+ $j = $i + 12;
+ if ($j == 16) $j = 5;
+ $tmp = $bin[$i].$bin[$k].$bin[$j].$tmp;
+ }
+ $tmp = chr(0).chr(0).$bin[11].$tmp;
+ $tmp = strtr(strrev(substr(base64_encode($tmp), 2)),
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
+ "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+ return '$'.$magic.'$'.$salt.'$'.$tmp;
+ case 'md5':
+ return md5($clear);
+ case 'sha1':
+ return sha1($clear);
+ case 'ssha':
+ $salt=substr($salt,0,4);
+ return '{SSHA}'.base64_encode(pack("H*", sha1($clear.$salt)).$salt);
+ case 'crypt':
+ return crypt($clear,substr($salt,0,2));
+ case 'mysql':
+ //from http://www.php.net/mysql comment by <soren at byu dot edu>
+ $nr=0x50305735;
+ $nr2=0x12345671;
+ $add=7;
+ $charArr = preg_split("//", $clear);
+ foreach ($charArr as $char) {
+ if (($char == '') || ($char == ' ') || ($char == '\t')) continue;
+ $charVal = ord($char);
+ $nr ^= ((($nr & 63) + $add) * $charVal) + ($nr << 8);
+ $nr2 += ($nr2 << 8) ^ $nr;
+ $add += $charVal;
+ }
+ return sprintf("%08x%08x", ($nr & 0x7fffffff), ($nr2 & 0x7fffffff));
+ case 'my411':
+ return '*'.sha1(pack("H*", sha1($clear)));
+ case 'kmd5':
+ $key = substr($salt, 16, 2);
+ $hash1 = strtolower(md5($key . md5($clear)));
+ $hash2 = substr($hash1, 0, 16) . $key . substr($hash1, 16);
+ return $hash2;
+ default:
+ msg("Unsupported crypt method $method",-1);
+ }
+}
+
+/**
+ * Verifies a cleartext password against a crypted hash
+ *
+ * The method and salt used for the crypted hash is determined automatically
+ * then the clear text password is crypted using the same method. If both hashs
+ * match true is is returned else false
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @return bool
+ */
+function auth_verifyPassword($clear,$crypt){
+ $method='';
+ $salt='';
+
+ //determine the used method and salt
+ $len = strlen($crypt);
+ if(preg_match('/^\$1\$([^\$]{0,8})\$/',$crypt,$m)){
+ $method = 'smd5';
+ $salt = $m[1];
+ }elseif(preg_match('/^\$apr1\$([^\$]{0,8})\$/',$crypt,$m)){
+ $method = 'apr1';
+ $salt = $m[1];
+ }elseif(substr($crypt,0,6) == '{SSHA}'){
+ $method = 'ssha';
+ $salt = substr(base64_decode(substr($crypt, 6)),20);
+ }elseif($len == 32){
+ $method = 'md5';
+ }elseif($len == 40){
+ $method = 'sha1';
+ }elseif($len == 16){
+ $method = 'mysql';
+ }elseif($len == 41 && $crypt[0] == '*'){
+ $method = 'my411';
+ }elseif($len == 34){
+ $method = 'kmd5';
+ $salt = $crypt;
+ }else{
+ $method = 'crypt';
+ $salt = substr($crypt,0,2);
+ }
+
+ //crypt and compare
+ if(auth_cryptPassword($clear,$method,$salt) === $crypt){
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Set the authentication cookie and add user identification data to the session
+ *
+ * @param string $user username
+ * @param string $pass encrypted password
+ * @param bool $sticky whether or not the cookie will last beyond the session
+ */
+function auth_setCookie($user,$pass,$sticky) {
+ global $conf;
+ global $auth;
+ global $USERINFO;
+
+ if (!$auth) return false;
+ $USERINFO = $auth->getUserData($user);
+
+ // set cookie
+ $cookie = base64_encode($user).'|'.((int) $sticky).'|'.base64_encode($pass);
+ $time = $sticky ? (time()+60*60*24*365) : 0; //one year
+ if (version_compare(PHP_VERSION, '5.2.0', '>')) {
+ setcookie(DOKU_COOKIE,$cookie,$time,DOKU_REL,'',($conf['securecookie'] && is_ssl()),true);
+ }else{
+ setcookie(DOKU_COOKIE,$cookie,$time,DOKU_REL,'',($conf['securecookie'] && is_ssl()));
+ }
+ // set session
+ $_SESSION[DOKU_COOKIE]['auth']['user'] = $user;
+ $_SESSION[DOKU_COOKIE]['auth']['pass'] = $pass;
+ $_SESSION[DOKU_COOKIE]['auth']['buid'] = auth_browseruid();
+ $_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO;
+ $_SESSION[DOKU_COOKIE]['auth']['time'] = time();
+}
+
+/**
+ * Returns the user, (encrypted) password and sticky bit from cookie
+ *
+ * @returns array
+ */
+function auth_getCookie(){
+ if (!isset($_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 enc=utf-8 :
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-14 08:00:58 +0000