3 * Authentication library
5 * Including this file will automatically try to login
6 * a user by calling auth_login()
8 * @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
9 * @author Andreas Gohr <andi@splitbrain.org>
12 if(!defined('DOKU_INC')) die('meh.');
14 // some ACL level defines
15 define('AUTH_NONE',0);
16 define('AUTH_READ',1);
17 define('AUTH_EDIT',2);
18 define('AUTH_CREATE',4);
19 define('AUTH_UPLOAD',8);
20 define('AUTH_DELETE',16);
21 define('AUTH_ADMIN',255);
24 * Initialize the auth system.
26 * This function is automatically called at the end of init.php
28 * This used to be the main() of the auth.php
30 * @todo backend loading maybe should be handled by the class autoloader
31 * @todo maybe split into multiple functions at the XXX marked positions
33 function auth_setup(){
38 global $config_cascade;
41 if(!$conf['useacl']) return false;
43 // load the the backend auth functions and instantiate the auth object XXX
44 if (@file_exists(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php')) {
45 require_once(DOKU_INC.'inc/auth/basic.class.php');
46 require_once(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php');
48 $auth_class = "auth_".$conf['authtype'];
49 if (class_exists($auth_class)) {
50 $auth = new $auth_class();
51 if ($auth->success == false) {
52 // degrade to unauthenticated user
55 msg($lang['authtempfail'], -1);
58 nice_die($lang['authmodfailed']);
61 nice_die($lang['authmodfailed']);
66 // do the login either by cookie or provided credentials XXX
67 if (!isset($_REQUEST['u'])) $_REQUEST['u'] = '';
68 if (!isset($_REQUEST['p'])) $_REQUEST['p'] = '';
69 if (!isset($_REQUEST['r'])) $_REQUEST['r'] = '';
70 $_REQUEST['http_credentials'] = false;
71 if (!$conf['rememberme']) $_REQUEST['r'] = false;
73 // handle renamed HTTP_AUTHORIZATION variable (can happen when a fix like
74 // the one presented at
75 // http://www.besthostratings.com/articles/http-auth-php-cgi.html is used
76 // for enabling HTTP authentication with CGI/SuExec)
77 if(isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']))
78 $_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
79 // streamline HTTP auth credentials (IIS/rewrite -> mod_php)
80 if(isset($_SERVER['HTTP_AUTHORIZATION'])){
81 list($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW']) =
82 explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
85 // if no credentials were given try to use HTTP auth (for SSO)
86 if(empty($_REQUEST['u']) && empty($_COOKIE[DOKU_COOKIE]) && !empty($_SERVER['PHP_AUTH_USER'])){
87 $_REQUEST['u'] = $_SERVER['PHP_AUTH_USER'];
88 $_REQUEST['p'] = $_SERVER['PHP_AUTH_PW'];
89 $_REQUEST['http_credentials'] = true;
93 $_REQUEST['u'] = $auth->cleanUser($_REQUEST['u']);
95 if(isset($_REQUEST['authtok'])){
96 // when an authentication token is given, trust the session
97 auth_validateToken($_REQUEST['authtok']);
98 }elseif(!is_null($auth) && $auth->canDo('external')){
99 // external trust mechanism in place
100 $auth->trustExternal($_REQUEST['u'],$_REQUEST['p'],$_REQUEST['r']);
103 'user' => $_REQUEST['u'],
104 'password' => $_REQUEST['p'],
105 'sticky' => $_REQUEST['r'],
106 'silent' => $_REQUEST['http_credentials'],
108 trigger_event('AUTH_LOGIN_CHECK', $evdata, 'auth_login_wrapper');
111 //load ACL into a global array XXX
112 $AUTH_ACL = auth_loadACL();
116 * Loads the ACL setup and handle user wildcards
118 * @author Andreas Gohr <andi@splitbrain.org>
121 function auth_loadACL(){
122 global $config_cascade;
124 if(!is_readable($config_cascade['acl']['default'])) return array();
126 $acl = file($config_cascade['acl']['default']);
128 //support user wildcard
129 if(isset($_SERVER['REMOTE_USER'])){
131 for($i=0; $i<$len; $i++){
132 if($acl[$i]{0} == '#') continue;
133 list($id,$rest) = preg_split('/\s+/',$acl[$i],2);
134 $id = str_replace('%USER%',cleanID($_SERVER['REMOTE_USER']),$id);
135 $rest = str_replace('%USER%',auth_nameencode($_SERVER['REMOTE_USER']),$rest);
136 $acl[$i] = "$id\t$rest";
142 function auth_login_wrapper($evdata) {
143 return auth_login($evdata['user'],
150 * This tries to login the user based on the sent auth credentials
152 * The authentication works like this: if a username was given
153 * a new login is assumed and user/password are checked. If they
154 * are correct the password is encrypted with blowfish and stored
155 * together with the username in a cookie - the same info is stored
156 * in the session, too. Additonally a browserID is stored in the
159 * If no username was given the cookie is checked: if the username,
160 * crypted password and browserID match between session and cookie
161 * no further testing is done and the user is accepted
163 * If a cookie was found but no session info was availabe the
164 * blowfish encrypted password from the cookie is decrypted and
165 * together with username rechecked by calling this function again.
167 * On a successful login $_SERVER[REMOTE_USER] and $USERINFO
170 * @author Andreas Gohr <andi@splitbrain.org>
172 * @param string $user Username
173 * @param string $pass Cleartext Password
174 * @param bool $sticky Cookie should not expire
175 * @param bool $silent Don't show error on bad auth
176 * @return bool true on successful auth
178 function auth_login($user,$pass,$sticky=false,$silent=false){
183 $sticky ? $sticky = true : $sticky = false; //sanity check
185 if (!$auth) return false;
189 if ($auth->checkPass($user,$pass)){
190 // make logininfo globally available
191 $_SERVER['REMOTE_USER'] = $user;
192 $secret = auth_cookiesalt(!$sticky); //bind non-sticky to session
193 auth_setCookie($user,PMA_blowfish_encrypt($pass,$secret),$sticky);
196 //invalid credentials - log off
197 if(!$silent) msg($lang['badlogin'],-1);
202 // read cookie information
203 list($user,$sticky,$pass) = auth_getCookie();
205 // we got a cookie - see if we can trust it
208 $session = $_SESSION[DOKU_COOKIE]['auth'];
209 if(isset($session) &&
210 $auth->useSessionCache($user) &&
211 ($session['time'] >= time()-$conf['auth_security_timeout']) &&
212 ($session['user'] == $user) &&
213 ($session['pass'] == sha1($pass)) && //still crypted
214 ($session['buid'] == auth_browseruid()) ){
216 // he has session, cookie and browser right - let him in
217 $_SERVER['REMOTE_USER'] = $user;
218 $USERINFO = $session['info']; //FIXME move all references to session
221 // no we don't trust it yet - recheck pass but silent
222 $secret = auth_cookiesalt(!$sticky); //bind non-sticky to session
223 $pass = PMA_blowfish_decrypt($pass,$secret);
224 return auth_login($user,$pass,$sticky,true);
233 * Checks if a given authentication token was stored in the session
235 * Will setup authentication data using data from the session if the
236 * token is correct. Will exit with a 401 Status if not.
238 * @author Andreas Gohr <andi@splitbrain.org>
239 * @param string $token The authentication token
240 * @return boolean true (or will exit on failure)
242 function auth_validateToken($token){
243 if(!$token || $token != $_SESSION[DOKU_COOKIE]['auth']['token']){
245 header("HTTP/1.0 401 Unauthorized");
246 print 'Invalid auth token - maybe the session timed out';
247 unset($_SESSION[DOKU_COOKIE]['auth']['token']); // no second chance
250 // still here? trust the session data
252 $_SERVER['REMOTE_USER'] = $_SESSION[DOKU_COOKIE]['auth']['user'];
253 $USERINFO = $_SESSION[DOKU_COOKIE]['auth']['info'];
258 * Create an auth token and store it in the session
260 * NOTE: this is completely unrelated to the getSecurityToken() function
262 * @author Andreas Gohr <andi@splitbrain.org>
263 * @return string The auth token
265 function auth_createToken(){
266 $token = md5(mt_rand());
267 @session_start(); // reopen the session if needed
268 $_SESSION[DOKU_COOKIE]['auth']['token'] = $token;
269 session_write_close();
274 * Builds a pseudo UID from browser and IP data
276 * This is neither unique nor unfakable - still it adds some
277 * security. Using the first part of the IP makes sure
278 * proxy farms like AOLs are stil okay.
280 * @author Andreas Gohr <andi@splitbrain.org>
282 * @return string a MD5 sum of various browser headers
284 function auth_browseruid(){
285 $ip = clientIP(true);
287 $uid .= $_SERVER['HTTP_USER_AGENT'];
288 $uid .= $_SERVER['HTTP_ACCEPT_ENCODING'];
289 $uid .= $_SERVER['HTTP_ACCEPT_LANGUAGE'];
290 $uid .= $_SERVER['HTTP_ACCEPT_CHARSET'];
291 $uid .= substr($ip,0,strpos($ip,'.'));
296 * Creates a random key to encrypt the password in cookies
298 * This function tries to read the password for encrypting
299 * cookies from $conf['metadir'].'/_htcookiesalt'
300 * if no such file is found a random key is created and
301 * and stored in this file.
303 * @author Andreas Gohr <andi@splitbrain.org>
304 * @param bool $addsession if true, the sessionid is added to the salt
307 function auth_cookiesalt($addsession=false){
309 $file = $conf['metadir'].'/_htcookiesalt';
310 $salt = io_readFile($file);
312 $salt = uniqid(rand(),true);
313 io_saveFile($file,$salt);
316 $salt .= session_id();
322 * Log out the current user
324 * This clears all authentication data and thus log the user
325 * off. It also clears session data.
327 * @author Andreas Gohr <andi@splitbrain.org>
328 * @param bool $keepbc - when true, the breadcrumb data is not cleared
330 function auth_logoff($keepbc=false){
336 // make sure the session is writable (it usually is)
339 if(isset($_SESSION[DOKU_COOKIE]['auth']['user']))
340 unset($_SESSION[DOKU_COOKIE]['auth']['user']);
341 if(isset($_SESSION[DOKU_COOKIE]['auth']['pass']))
342 unset($_SESSION[DOKU_COOKIE]['auth']['pass']);
343 if(isset($_SESSION[DOKU_COOKIE]['auth']['info']))
344 unset($_SESSION[DOKU_COOKIE]['auth']['info']);
345 if(!$keepbc && isset($_SESSION[DOKU_COOKIE]['bc']))
346 unset($_SESSION[DOKU_COOKIE]['bc']);
347 if(isset($_SERVER['REMOTE_USER']))
348 unset($_SERVER['REMOTE_USER']);
349 $USERINFO=null; //FIXME
351 $cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
352 if (version_compare(PHP_VERSION, '5.2.0', '>')) {
353 setcookie(DOKU_COOKIE,'',time()-600000,$cookieDir,'',($conf['securecookie'] && is_ssl()),true);
355 setcookie(DOKU_COOKIE,'',time()-600000,$cookieDir,'',($conf['securecookie'] && is_ssl()));
358 if($auth) $auth->logOff();
362 * Check if a user is a manager
364 * Should usually be called without any parameters to check the current
367 * The info is available through $INFO['ismanager'], too
369 * @author Andreas Gohr <andi@splitbrain.org>
371 * @param string user - Username
372 * @param array groups - List of groups the user is in
373 * @param bool adminonly - when true checks if user is admin
375 function auth_ismanager($user=null,$groups=null,$adminonly=false){
380 if (!$auth) return false;
382 if (!isset($_SERVER['REMOTE_USER'])) {
385 $user = $_SERVER['REMOTE_USER'];
388 if(is_null($groups)){
389 $groups = (array) $USERINFO['grps'];
392 // check superuser match
393 if(auth_isMember($conf['superuser'],$user, $groups)) return true;
394 if($adminonly) return false;
396 if(auth_isMember($conf['manager'],$user, $groups)) return true;
402 * Check if a user is admin
404 * Alias to auth_ismanager with adminonly=true
406 * The info is available through $INFO['isadmin'], too
408 * @author Andreas Gohr <andi@splitbrain.org>
409 * @see auth_ismanager
411 function auth_isadmin($user=null,$groups=null){
412 return auth_ismanager($user,$groups,true);
417 * Match a user and his groups against a comma separated list of
418 * users and groups to determine membership status
420 * Note: all input should NOT be nameencoded.
422 * @param $memberlist string commaseparated list of allowed users and groups
423 * @param $user string user to match against
424 * @param $groups array groups the user is member of
425 * @returns bool true for membership acknowledged
427 function auth_isMember($memberlist,$user,array $groups){
429 if (!$auth) return false;
431 // clean user and groups
432 if(!$auth->isCaseSensitive()){
433 $user = utf8_strtolower($user);
434 $groups = array_map('utf8_strtolower',$groups);
436 $user = $auth->cleanUser($user);
437 $groups = array_map(array($auth,'cleanGroup'),$groups);
439 // extract the memberlist
440 $members = explode(',',$memberlist);
441 $members = array_map('trim',$members);
442 $members = array_unique($members);
443 $members = array_filter($members);
445 // compare cleaned values
446 foreach($members as $member){
447 if(!$auth->isCaseSensitive()) $member = utf8_strtolower($member);
448 if($member[0] == '@'){
449 $member = $auth->cleanGroup(substr($member,1));
450 if(in_array($member, $groups)) return true;
452 $member = $auth->cleanUser($member);
453 if($member == $user) return true;
457 // still here? not a member!
462 * Convinience function for auth_aclcheck()
464 * This checks the permissions for the current user
466 * @author Andreas Gohr <andi@splitbrain.org>
468 * @param string $id page ID (needs to be resolved and cleaned)
469 * @return int permission level
471 function auth_quickaclcheck($id){
474 # if no ACL is used always return upload rights
475 if(!$conf['useacl']) return AUTH_UPLOAD;
476 return auth_aclcheck($id,$_SERVER['REMOTE_USER'],$USERINFO['grps']);
480 * Returns the maximum rights a user has for
481 * the given ID or its namespace
483 * @author Andreas Gohr <andi@splitbrain.org>
485 * @param string $id page ID (needs to be resolved and cleaned)
486 * @param string $user Username
487 * @param array $groups Array of groups the user is in
488 * @return int permission level
490 function auth_aclcheck($id,$user,$groups){
495 // if no ACL is used always return upload rights
496 if(!$conf['useacl']) return AUTH_UPLOAD;
497 if (!$auth) return AUTH_NONE;
499 //make sure groups is an array
500 if(!is_array($groups)) $groups = array();
502 //if user is superuser or in superusergroup return 255 (acl_admin)
503 if(auth_isadmin($user,$groups)) { return AUTH_ADMIN; }
506 if(!$auth->isCaseSensitive()) $ci = 'ui';
508 $user = $auth->cleanUser($user);
509 $groups = array_map(array($auth,'cleanGroup'),(array)$groups);
510 $user = auth_nameencode($user);
512 //prepend groups with @ and nameencode
513 $cnt = count($groups);
514 for($i=0; $i<$cnt; $i++){
515 $groups[$i] = '@'.auth_nameencode($groups[$i]);
521 if($user || count($groups)){
525 if($user) $groups[] = $user;
527 $regexp = join('|',$groups);
532 //check exact match first
533 $matches = preg_grep('/^'.preg_quote($id,'/').'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL);
535 foreach($matches as $match){
536 $match = preg_replace('/#.*$/','',$match); //ignore comments
537 $acl = preg_split('/\s+/',$match);
538 if($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL!
544 //we had a match - return it
549 //still here? do the namespace checks
553 $path = '*'; //root document
557 $matches = preg_grep('/^'.preg_quote($path,'/').'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL);
559 foreach($matches as $match){
560 $match = preg_replace('/#.*$/','',$match); //ignore comments
561 $acl = preg_split('/\s+/',$match);
562 if($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL!
567 //we had a match - return it
571 //get next higher namespace
576 if($path == ':*') $path = '*';
578 //we did this already
579 //looks like there is something wrong with the ACL
581 msg('No ACL setup yet! Denying access to everyone.');
584 }while(1); //this should never loop endless
586 //still here? return no permissions
591 * Encode ASCII special chars
593 * Some auth backends allow special chars in their user and groupnames
594 * The special chars are encoded with this function. Only ASCII chars
595 * are encoded UTF-8 multibyte are left as is (different from usual
598 * Decoding can be done with rawurldecode
600 * @author Andreas Gohr <gohr@cosmocode.de>
601 * @see rawurldecode()
603 function auth_nameencode($name,$skip_group=false){
604 global $cache_authname;
605 $cache =& $cache_authname;
606 $name = (string) $name;
608 // never encode wildcard FS#1955
609 if($name == '%USER%') return $name;
611 if (!isset($cache[$name][$skip_group])) {
612 if($skip_group && $name{0} =='@'){
613 $cache[$name][$skip_group] = '@'.preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e',
614 "'%'.dechex(ord(substr('\\1',-1)))",substr($name,1));
616 $cache[$name][$skip_group] = preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e',
617 "'%'.dechex(ord(substr('\\1',-1)))",$name);
621 return $cache[$name][$skip_group];
625 * Create a pronouncable password
627 * @author Andreas Gohr <andi@splitbrain.org>
628 * @link http://www.phpbuilder.com/annotate/message.php3?id=1014451
630 * @return string pronouncable password
632 function auth_pwgen(){
634 $c = 'bcdfghjklmnprstvwz'; //consonants except hard to speak ones
635 $v = 'aeiou'; //vowels
638 //use two syllables...
639 for($i=0;$i < 2; $i++){
640 $pw .= $c[rand(0, strlen($c)-1)];
641 $pw .= $v[rand(0, strlen($v)-1)];
642 $pw .= $a[rand(0, strlen($a)-1)];
644 //... and add a nice number
651 * Sends a password to the given user
653 * @author Andreas Gohr <andi@splitbrain.org>
655 * @return bool true on success
657 function auth_sendPassword($user,$password){
661 if (!$auth) return false;
664 $user = $auth->cleanUser($user);
665 $userinfo = $auth->getUserData($user);
667 if(!$userinfo['mail']) return false;
669 $text = rawLocale('password');
670 $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
671 $text = str_replace('@FULLNAME@',$userinfo['name'],$text);
672 $text = str_replace('@LOGIN@',$user,$text);
673 $text = str_replace('@PASSWORD@',$password,$text);
674 $text = str_replace('@TITLE@',$conf['title'],$text);
676 if(empty($conf['mailprefix'])) {
677 $subject = $lang['regpwmail'];
679 $subject = '['.$conf['mailprefix'].'] '.$lang['regpwmail'];
682 return mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
689 * Register a new user
691 * This registers a new user - Data is read directly from $_POST
693 * @author Andreas Gohr <andi@splitbrain.org>
695 * @return bool true on success, false on any error
702 if(!$_POST['save']) return false;
703 if(!actionOK('register')) return false;
706 $_POST['login'] = trim($auth->cleanUser($_POST['login']));
708 //clean fullname and email
709 $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname']));
710 $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email']));
712 if( empty($_POST['login']) ||
713 empty($_POST['fullname']) ||
714 empty($_POST['email']) ){
715 msg($lang['regmissing'],-1);
719 if ($conf['autopasswd']) {
720 $pass = auth_pwgen(); // automatically generate password
721 } elseif (empty($_POST['pass']) ||
722 empty($_POST['passchk'])) {
723 msg($lang['regmissing'], -1); // complain about missing passwords
725 } elseif ($_POST['pass'] != $_POST['passchk']) {
726 msg($lang['regbadpass'], -1); // complain about misspelled passwords
729 $pass = $_POST['pass']; // accept checked and valid password
733 if(!mail_isvalid($_POST['email'])){
734 msg($lang['regbadmail'],-1);
738 //okay try to create the user
739 if(!$auth->triggerUserMod('create', array($_POST['login'],$pass,$_POST['fullname'],$_POST['email']))){
740 msg($lang['reguexists'],-1);
744 // create substitutions for use in notification email
745 $substitutions = array(
746 'NEWUSER' => $_POST['login'],
747 'NEWNAME' => $_POST['fullname'],
748 'NEWEMAIL' => $_POST['email'],
751 if (!$conf['autopasswd']) {
752 msg($lang['regsuccess2'],1);
753 notify('', 'register', '', $_POST['login'], false, $substitutions);
757 // autogenerated password? then send him the password
758 if (auth_sendPassword($_POST['login'],$pass)){
759 msg($lang['regsuccess'],1);
760 notify('', 'register', '', $_POST['login'], false, $substitutions);
763 msg($lang['regmailfail'],-1);
769 * Update user profile
771 * @author Christopher Smith <chris@jalakai.co.uk>
773 function updateprofile() {
779 if(empty($_POST['save'])) return false;
780 if(!checkSecurityToken()) return false;
782 if(!actionOK('profile')) {
783 msg($lang['profna'],-1);
787 if ($_POST['newpass'] != $_POST['passchk']) {
788 msg($lang['regbadpass'], -1); // complain about misspelled passwords
792 //clean fullname and email
793 $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname']));
794 $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email']));
796 if ((empty($_POST['fullname']) && $auth->canDo('modName')) ||
797 (empty($_POST['email']) && $auth->canDo('modMail'))) {
798 msg($lang['profnoempty'],-1);
802 if (!mail_isvalid($_POST['email']) && $auth->canDo('modMail')){
803 msg($lang['regbadmail'],-1);
807 if ($_POST['fullname'] != $INFO['userinfo']['name'] && $auth->canDo('modName')) $changes['name'] = $_POST['fullname'];
808 if ($_POST['email'] != $INFO['userinfo']['mail'] && $auth->canDo('modMail')) $changes['mail'] = $_POST['email'];
809 if (!empty($_POST['newpass']) && $auth->canDo('modPass')) $changes['pass'] = $_POST['newpass'];
811 if (!count($changes)) {
812 msg($lang['profnochange'], -1);
816 if ($conf['profileconfirm']) {
817 if (!$auth->checkPass($_SERVER['REMOTE_USER'], $_POST['oldpass'])) {
818 msg($lang['badlogin'],-1);
823 if ($result = $auth->triggerUserMod('modify', array($_SERVER['REMOTE_USER'], $changes))) {
824 // update cookie and session with the changed data
825 if ($changes['pass']){
826 list($user,$sticky,$pass) = auth_getCookie();
827 $pass = PMA_blowfish_encrypt($changes['pass'],auth_cookiesalt(!$sticky));
828 auth_setCookie($_SERVER['REMOTE_USER'],$pass,(bool)$sticky);
835 * Send a new password
837 * This function handles both phases of the password reset:
839 * - handling the first request of password reset
840 * - validating the password reset auth token
842 * @author Benoit Chesneau <benoit@bchesneau.info>
843 * @author Chris Smith <chris@jalakai.co.uk>
844 * @author Andreas Gohr <andi@splitbrain.org>
846 * @return bool true on success, false on any error
848 function act_resendpwd(){
853 if(!actionOK('resendpwd')) {
854 msg($lang['resendna'],-1);
858 $token = preg_replace('/[^a-f0-9]+/','',$_REQUEST['pwauth']);
861 // we're in token phase
863 $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth';
864 if(!@file_exists($tfile)){
865 msg($lang['resendpwdbadauth'],-1);
868 $user = io_readfile($tfile);
870 $userinfo = $auth->getUserData($user);
871 if(!$userinfo['mail']) {
872 msg($lang['resendpwdnouser'], -1);
876 $pass = auth_pwgen();
877 if (!$auth->triggerUserMod('modify', array($user,array('pass' => $pass)))) {
878 msg('error modifying user data',-1);
882 if (auth_sendPassword($user,$pass)) {
883 msg($lang['resendpwdsuccess'],1);
885 msg($lang['regmailfail'],-1);
890 // we're in request phase
892 if(!$_POST['save']) return false;
894 if (empty($_POST['login'])) {
895 msg($lang['resendpwdmissing'], -1);
898 $user = trim($auth->cleanUser($_POST['login']));
901 $userinfo = $auth->getUserData($user);
902 if(!$userinfo['mail']) {
903 msg($lang['resendpwdnouser'], -1);
907 // generate auth token
908 $token = md5(auth_cookiesalt().$user); //secret but user based
909 $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth';
910 $url = wl('',array('do'=>'resendpwd','pwauth'=>$token),true,'&');
912 io_saveFile($tfile,$user);
914 $text = rawLocale('pwconfirm');
915 $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text);
916 $text = str_replace('@FULLNAME@',$userinfo['name'],$text);
917 $text = str_replace('@LOGIN@',$user,$text);
918 $text = str_replace('@TITLE@',$conf['title'],$text);
919 $text = str_replace('@CONFIRM@',$url,$text);
921 if(empty($conf['mailprefix'])) {
922 $subject = $lang['regpwmail'];
924 $subject = '['.$conf['mailprefix'].'] '.$lang['regpwmail'];
927 if(mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
931 msg($lang['resendpwdconfirm'],1);
933 msg($lang['regmailfail'],-1);
938 return false; // never reached
942 * Encrypts a password using the given method and salt
944 * If the selected method needs a salt and none was given, a random one
947 * @author Andreas Gohr <andi@splitbrain.org>
948 * @return string The crypted password
950 function auth_cryptPassword($clear,$method='',$salt=null){
952 if(empty($method)) $method = $conf['passcrypt'];
954 $pass = new PassHash();
955 $call = 'hash_'.$method;
957 if(!method_exists($pass,$call)){
958 msg("Unsupported crypt method $method",-1);
962 return $pass->$call($clear,$salt);
966 * Verifies a cleartext password against a crypted hash
968 * @author Andreas Gohr <andi@splitbrain.org>
971 function auth_verifyPassword($clear,$crypt){
972 $pass = new PassHash();
973 return $pass->verify_hash($clear,$crypt);
977 * Set the authentication cookie and add user identification data to the session
979 * @param string $user username
980 * @param string $pass encrypted password
981 * @param bool $sticky whether or not the cookie will last beyond the session
983 function auth_setCookie($user,$pass,$sticky) {
988 if (!$auth) return false;
989 $USERINFO = $auth->getUserData($user);
992 $cookie = base64_encode($user).'|'.((int) $sticky).'|'.base64_encode($pass);
993 $cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
994 $time = $sticky ? (time()+60*60*24*365) : 0; //one year
995 if (version_compare(PHP_VERSION, '5.2.0', '>')) {
996 setcookie(DOKU_COOKIE,$cookie,$time,$cookieDir,'',($conf['securecookie'] && is_ssl()),true);
998 setcookie(DOKU_COOKIE,$cookie,$time,$cookieDir,'',($conf['securecookie'] && is_ssl()));
1001 $_SESSION[DOKU_COOKIE]['auth']['user'] = $user;
1002 $_SESSION[DOKU_COOKIE]['auth']['pass'] = sha1($pass);
1003 $_SESSION[DOKU_COOKIE]['auth']['buid'] = auth_browseruid();
1004 $_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO;
1005 $_SESSION[DOKU_COOKIE]['auth']['time'] = time();
1009 * Returns the user, (encrypted) password and sticky bit from cookie
1013 function auth_getCookie(){
1014 if (!isset($_COOKIE[DOKU_COOKIE])) {
1015 return array(null, null, null);
1017 list($user,$sticky,$pass) = explode('|',$_COOKIE[DOKU_COOKIE],3);
1018 $sticky = (bool) $sticky;
1019 $pass = base64_decode($pass);
1020 $user = base64_decode($user);
1021 return array($user,$sticky,$pass);
1024 //Setup VIM: ex: et ts=2 :