/
auth.php
1053 lines (929 loc) · 32.1 KB
/
auth.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?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.');
// 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);
/**
* Initialize the auth system.
*
* This function is automatically called at the end of init.php
*
* This used to be the main() of the auth.php
*
* @todo backend loading maybe should be handled by the class autoloader
* @todo maybe split into multiple functions at the XXX marked positions
*/
function auth_setup(){
global $conf;
global $auth;
global $AUTH_ACL;
global $lang;
global $config_cascade;
$AUTH_ACL = array();
if(!$conf['useacl']) return false;
// load the the backend auth functions and instantiate the auth object XXX
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']);
}
if(!$auth) return;
// do the login either by cookie or provided credentials XXX
if (!isset($_REQUEST['u'])) $_REQUEST['u'] = '';
if (!isset($_REQUEST['p'])) $_REQUEST['p'] = '';
if (!isset($_REQUEST['r'])) $_REQUEST['r'] = '';
$_REQUEST['http_credentials'] = false;
if (!$conf['rememberme']) $_REQUEST['r'] = false;
// handle renamed HTTP_AUTHORIZATION variable (can happen when a fix like
// the one presented at
// http://www.besthostratings.com/articles/http-auth-php-cgi.html is used
// for enabling HTTP authentication with CGI/SuExec)
if(isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']))
$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
// streamline HTTP auth credentials (IIS/rewrite -> mod_php)
if(isset($_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'],
);
trigger_event('AUTH_LOGIN_CHECK', $evdata, 'auth_login_wrapper');
}
//load ACL into a global array XXX
$AUTH_ACL = auth_loadACL();
}
/**
* Loads the ACL setup and handle user wildcards
*
* @author Andreas Gohr <andi@splitbrain.org>
* @returns array
*/
function auth_loadACL(){
global $config_cascade;
if(!is_readable($config_cascade['acl']['default'])) return array();
$acl = file($config_cascade['acl']['default']);
//support user wildcard
if(isset($_SERVER['REMOTE_USER'])){
$len = count($acl);
for($i=0; $i<$len; $i++){
if($acl[$i]{0} == '#') continue;
list($id,$rest) = preg_split('/\s+/',$acl[$i],2);
$id = str_replace('%USER%',cleanID($_SERVER['REMOTE_USER']),$id);
$rest = str_replace('%USER%',auth_nameencode($_SERVER['REMOTE_USER']),$rest);
$acl[$i] = "$id\t$rest";
}
}
return $acl;
}
function auth_login_wrapper($evdata) {
return auth_login($evdata['user'],
$evdata['password'],
$evdata['sticky'],
$evdata['silent']);
}
/**
* 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;
$secret = auth_cookiesalt(!$sticky); //bind non-sticky to session
auth_setCookie($user,PMA_blowfish_encrypt($pass,$secret),$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,$pass) = auth_getCookie();
if($user && $pass){
// we got a cookie - see if we can trust it
// get session info
$session = $_SESSION[DOKU_COOKIE]['auth'];
if(isset($session) &&
$auth->useSessionCache($user) &&
($session['time'] >= time()-$conf['auth_security_timeout']) &&
($session['user'] == $user) &&
($session['pass'] == sha1($pass)) && //still crypted
($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
$secret = auth_cookiesalt(!$sticky); //bind non-sticky to session
$pass = PMA_blowfish_decrypt($pass,$secret);
return auth_login($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>
* @param bool $addsession if true, the sessionid is added to the salt
* @return string
*/
function auth_cookiesalt($addsession=false){
global $conf;
$file = $conf['metadir'].'/_htcookiesalt';
$salt = io_readFile($file);
if(empty($salt)){
$salt = uniqid(rand(),true);
io_saveFile($file,$salt);
}
if($addsession){
$salt .= session_id();
}
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
$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
if (version_compare(PHP_VERSION, '5.2.0', '>')) {
setcookie(DOKU_COOKIE,'',time()-600000,$cookieDir,'',($conf['securecookie'] && is_ssl()),true);
}else{
setcookie(DOKU_COOKIE,'',time()-600000,$cookieDir,'',($conf['securecookie'] && is_ssl()));
}
if($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 $INFO['ismanager'], too
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see auth_isadmin
* @param string user - Username
* @param array groups - List of groups the user is in
* @param bool adminonly - when true checks if user is admin
*/
function auth_ismanager($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 = $_SERVER['REMOTE_USER'];
}
}
if(is_null($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 $INFO['isadmin'], too
*
* @author Andreas Gohr <andi@splitbrain.org>
* @see auth_ismanager
*/
function auth_isadmin($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 $memberlist string commaseparated list of allowed users and groups
* @param $user string user to match against
* @param $groups array groups the user is member of
* @return bool true for membership acknowledged
*/
function auth_isMember($memberlist,$user,array $groups){
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 $member){
if(!$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 $USERINFO;
# if no ACL is used always return upload rights
if(!$conf['useacl']) return AUTH_UPLOAD;
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;
}else{
$groups[] = '@ALL';
}
//check exact match first
$matches = preg_grep('/^'.preg_quote($id,'/').'\s+(\S+)\s+/'.$ci,$AUTH_ACL);
if(count($matches)){
foreach($matches as $match){
$match = preg_replace('/#.*$/','',$match); //ignore comments
$acl = preg_split('/\s+/',$match);
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 $perm;
}
}
//still here? do the namespace checks
if($ns){
$path = $ns.':*';
}else{
$path = '*'; //root document
}
do{
$matches = preg_grep('/^'.preg_quote($path,'/').'\s+(\S+)\s+/'.$ci,$AUTH_ACL);
if(count($matches)){
foreach($matches as $match){
$match = preg_replace('/#.*$/','',$match); //ignore comments
$acl = preg_split('/\s+/',$match);
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 $perm;
}
}
//get next higher namespace
$ns = getNS($ns);
if($path != '*'){
$path = $ns.':*';
if($path == ':*') $path = '*';
}else{
//we did this already
//looks like there is something wrong with the ACL
//break here
msg('No ACL setup yet! Denying access to everyone.');
return AUTH_NONE;
}
}while(1); //this should never loop endless
}
/**
* Encode ASCII special chars
*
* Some auth backends allow special chars in their user and groupnames
* The special chars are encoded with this function. Only ASCII chars
* are encoded UTF-8 multibyte are left as is (different from usual
* urlencoding!).
*
* Decoding can be done with rawurldecode
*
* @author Andreas Gohr <gohr@cosmocode.de>
* @see rawurldecode()
*/
function auth_nameencode($name,$skip_group=false){
global $cache_authname;
$cache =& $cache_authname;
$name = (string) $name;
// never encode wildcard FS#1955
if($name == '%USER%') return $name;
if (!isset($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'],$text);
if(empty($conf['mailprefix'])) {
$subject = $lang['regpwmail'];
} else {
$subject = '['.$conf['mailprefix'].'] '.$lang['regpwmail'];
}
return mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
$subject,
$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 $auth;
if(!$_POST['save']) return false;
if(!actionOK('register')) 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 $auth;
if(empty($_POST['save'])) return false;
if(!checkSecurityToken()) return false;
if(!actionOK('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'], $changes))) {
// update cookie and session with the changed data
if ($changes['pass']){
list($user,$sticky,$pass) = auth_getCookie();
$pass = PMA_blowfish_encrypt($changes['pass'],auth_cookiesalt(!$sticky));
auth_setCookie($_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 $auth;
if(!actionOK('resendpwd')) {
msg($lang['resendna'],-1);
return false;
}
$token = preg_replace('/[^a-f0-9]+/','',$_REQUEST['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($lang['resendpwdbadauth'],-1);
unset($_REQUEST['pwauth']);
return false;
}
// token is only valid for 3 days
if( (time() - filemtime($tfile)) > (3*60*60*24) ){
msg($lang['resendpwdbadauth'],-1);
unset($_REQUEST['pwauth']);
@unlink($tfile);
return false;
}
$user = io_readfile($tfile);
$userinfo = $auth->getUserData($user);
if(!$userinfo['mail']) {
msg($lang['resendpwdnouser'], -1);
return false;
}
if(!$conf['autopasswd']){ // we let the user choose a password
// password given correctly?
if(!isset($_REQUEST['pass']) || $_REQUEST['pass'] == '') return false;
if($_REQUEST['pass'] != $_REQUEST['passchk']){
msg($lang['regbadpass'],-1);
return false;
}
$pass = $_REQUEST['pass'];
if (!$auth->triggerUserMod('modify', array($user,array('pass' => $pass)))) {
msg('error modifying user data',-1);
return false;
}
}else{ // autogenerate the password and send by mail
$pass = auth_pwgen();
if (!$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($lang['regmailfail'],-1);
}
}
@unlink($tfile);
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,$text);
if(empty($conf['mailprefix'])) {
$subject = $lang['regpwmail'];
} else {
$subject = '['.$conf['mailprefix'].'] '.$lang['regpwmail'];
}
if(mail_send($userinfo['name'].' <'.$userinfo['mail'].'>',
$subject,
$text,
$conf['mailfrom'])){
msg($lang['resendpwdconfirm'],1);
}else{
msg($lang['regmailfail'],-1);
}
return true;
}
return false; // never reached
}
/**
* Encrypts a password using the given method and salt
*
* If the selected method needs a salt and none was given, a random one
* is chosen.
*
* @author Andreas Gohr <andi@splitbrain.org>
* @return string The crypted password
*/
function auth_cryptPassword($clear,$method='',$salt=null){
global $conf;
if(empty($method)) $method = $conf['passcrypt'];
$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>
* @return bool
*/
function auth_verifyPassword($clear,$crypt){