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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Adam Williamson <awilliam@redhat.com>
* @author Andreas Fischer <bantu@owncloud.com>
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Björn Schießle <bjoern@schiessle.org>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Damjan Georgievski <gdamjan@gmail.com>
* @author Daniel Kesselberg <mail@danielkesselberg.de>
* @author davidgumberg <davidnoizgumberg@gmail.com>
* @author Eric Masseran <rico.masseran@gmail.com>
* @author Florin Peter <github@florin-peter.de>
* @author Greta Doci <gretadoci@gmail.com>
* @author Jakob Sack <mail@jakobsack.de>
* @author jaltek <jaltek@mailbox.org>
* @author Jan-Christoph Borchardt <hey@jancborchardt.net>
* @author Joachim Sokolowski <github@sokolowski.org>
* @author Joas Schilling <coding@schilljs.com>
* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Jose Quinteiro <github@quinteiro.org>
* @author Juan Pablo Villafáñez <jvillafanez@solidgear.es>
* @author Julius Härtl <jus@bitgrid.net>
* @author Ko- <k.stoffelen@cs.ru.nl>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author MartB <mart.b@outlook.de>
* @author Michael Gapczynski <GapczynskiM@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Owen Winkler <a_github@midnightcircus.com>
* @author Phil Davis <phil.davis@inf.org>
* @author Ramiro Aparicio <rapariciog@gmail.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Sebastian Wessalowski <sebastian@wessalowski.org>
* @author Stefan Weil <sw@weilnetz.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Thomas Tanghus <thomas@tanghus.net>
* @author Tobia De Koninck <tobia@ledfan.be>
* @author Vincent Petry <pvince81@owncloud.com>
* @author Volkan Gezer <volkangezer@gmail.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Group\Events\UserRemovedEvent;
use OCP\ILogger;
use OCP\Share;
use OC\Encryption\HookManager;
use OC\Files\Filesystem;
use OC\Share20\Hooks;
require_once 'public/Constants.php';
/**
* Class that is a namespace for all global OC variables
* No, we can not put this class in its own file because it is used by
* OC_autoload!
*/
class OC {
/**
* Associative array for autoloading. classname => filename
*/
public static $CLASSPATH = [];
/**
* The installation path for Nextcloud on the server (e.g. /srv/http/nextcloud)
*/
public static $SERVERROOT = '';
/**
* the current request path relative to the Nextcloud root (e.g. files/index.php)
*/
private static $SUBURI = '';
/**
* the Nextcloud root path for http requests (e.g. nextcloud/)
*/
public static $WEBROOT = '';
/**
* The installation path array of the apps folder on the server (e.g. /srv/http/nextcloud) 'path' and
* web path in 'url'
*/
public static $APPSROOTS = [];
/**
* @var string
*/
public static $configDir;
/**
* requested app
*/
public static $REQUESTEDAPP = '';
/**
* check if Nextcloud runs in cli mode
*/
public static $CLI = false;
/**
* @var \OC\Autoloader $loader
*/
public static $loader = null;
/** @var \Composer\Autoload\ClassLoader $composerAutoloader */
public static $composerAutoloader = null;
/**
* @var \OC\Server
*/
public static $server = null;
/**
* @var \OC\Config
*/
private static $config = null;
/**
* @throws \RuntimeException when the 3rdparty directory is missing or
* the app path list is empty or contains an invalid path
*/
public static function initPaths() {
if (defined('PHPUNIT_CONFIG_DIR')) {
self::$configDir = OC::$SERVERROOT . '/' . PHPUNIT_CONFIG_DIR . '/';
} elseif (defined('PHPUNIT_RUN') and PHPUNIT_RUN and is_dir(OC::$SERVERROOT . '/tests/config/')) {
self::$configDir = OC::$SERVERROOT . '/tests/config/';
} elseif ($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
self::$configDir = rtrim($dir, '/') . '/';
} else {
self::$configDir = OC::$SERVERROOT . '/config/';
}
self::$config = new \OC\Config(self::$configDir);
OC::$SUBURI = str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT)));
/**
* FIXME: The following lines are required because we can't yet instantiate
* \OC::$server->getRequest() since \OC::$server does not yet exist.
*/
$params = [
'server' => [
'SCRIPT_NAME' => $_SERVER['SCRIPT_NAME'],
'SCRIPT_FILENAME' => $_SERVER['SCRIPT_FILENAME'],
],
];
$fakeRequest = new \OC\AppFramework\Http\Request($params, null, new \OC\AllConfig(new \OC\SystemConfig(self::$config)));
$scriptName = $fakeRequest->getScriptName();
if (substr($scriptName, -1) == '/') {
$scriptName .= 'index.php';
//make sure suburi follows the same rules as scriptName
if (substr(OC::$SUBURI, -9) != 'index.php') {
if (substr(OC::$SUBURI, -1) != '/') {
OC::$SUBURI = OC::$SUBURI . '/';
}
OC::$SUBURI = OC::$SUBURI . 'index.php';
}
}
if (OC::$CLI) {
OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
} else {
if (substr($scriptName, 0 - strlen(OC::$SUBURI)) === OC::$SUBURI) {
OC::$WEBROOT = substr($scriptName, 0, 0 - strlen(OC::$SUBURI));
if (OC::$WEBROOT != '' && OC::$WEBROOT[0] !== '/') {
OC::$WEBROOT = '/' . OC::$WEBROOT;
}
} else {
// The scriptName is not ending with OC::$SUBURI
// This most likely means that we are calling from CLI.
// However some cron jobs still need to generate
// a web URL, so we use overwritewebroot as a fallback.
OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
}
// Resolve /nextcloud to /nextcloud/ to ensure to always have a trailing
// slash which is required by URL generation.
if (isset($_SERVER['REQUEST_URI']) && $_SERVER['REQUEST_URI'] === \OC::$WEBROOT &&
substr($_SERVER['REQUEST_URI'], -1) !== '/') {
header('Location: '.\OC::$WEBROOT.'/');
exit();
}
}
// search the apps folder
$config_paths = self::$config->getValue('apps_paths', []);
if (!empty($config_paths)) {
foreach ($config_paths as $paths) {
if (isset($paths['url']) && isset($paths['path'])) {
$paths['url'] = rtrim($paths['url'], '/');
$paths['path'] = rtrim($paths['path'], '/');
OC::$APPSROOTS[] = $paths;
}
}
} elseif (file_exists(OC::$SERVERROOT . '/apps')) {
OC::$APPSROOTS[] = ['path' => OC::$SERVERROOT . '/apps', 'url' => '/apps', 'writable' => true];
} elseif (file_exists(OC::$SERVERROOT . '/../apps')) {
OC::$APPSROOTS[] = [
'path' => rtrim(dirname(OC::$SERVERROOT), '/') . '/apps',
'url' => '/apps',
'writable' => true
];
}
if (empty(OC::$APPSROOTS)) {
throw new \RuntimeException('apps directory not found! Please put the Nextcloud apps folder in the Nextcloud folder'
. ' or the folder above. You can also configure the location in the config.php file.');
}
$paths = [];
foreach (OC::$APPSROOTS as $path) {
$paths[] = $path['path'];
if (!is_dir($path['path'])) {
throw new \RuntimeException(sprintf('App directory "%s" not found! Please put the Nextcloud apps folder in the'
. ' Nextcloud folder or the folder above. You can also configure the location in the'
. ' config.php file.', $path['path']));
}
}
// set the right include path
set_include_path(
implode(PATH_SEPARATOR, $paths)
);
}
public static function checkConfig() {
$l = \OC::$server->getL10N('lib');
// Create config if it does not already exist
$configFilePath = self::$configDir .'/config.php';
if (!file_exists($configFilePath)) {
@touch($configFilePath);
}
// Check if config is writable
$configFileWritable = is_writable($configFilePath);
if (!$configFileWritable && !OC_Helper::isReadOnlyConfigEnabled()
|| !$configFileWritable && \OCP\Util::needUpgrade()) {
$urlGenerator = \OC::$server->getURLGenerator();
if (self::$CLI) {
echo $l->t('Cannot write into "config" directory!')."\n";
echo $l->t('This can usually be fixed by giving the webserver write access to the config directory')."\n";
echo "\n";
echo $l->t('Or, if you prefer to keep config.php file read only, set the option "config_is_read_only" to true in it.')."\n";
echo $l->t('See %s', [ $urlGenerator->linkToDocs('admin-config') ])."\n";
exit;
} else {
OC_Template::printErrorPage(
$l->t('Cannot write into "config" directory!'),
$l->t('This can usually be fixed by giving the webserver write access to the config directory.') . '. '
. $l->t('Or, if you prefer to keep config.php file read only, set the option "config_is_read_only" to true in it. See %s',
[ $urlGenerator->linkToDocs('admin-config') ]),
503
);
}
}
}
public static function checkInstalled() {
if (defined('OC_CONSOLE')) {
return;
}
// Redirect to installer if not installed
if (!\OC::$server->getSystemConfig()->getValue('installed', false) && OC::$SUBURI !== '/index.php' && OC::$SUBURI !== '/status.php') {
if (OC::$CLI) {
throw new Exception('Not installed');
} else {
$url = OC::$WEBROOT . '/index.php';
header('Location: ' . $url);
}
exit();
}
}
public static function checkMaintenanceMode() {
// Allow ajax update script to execute without being stopped
if (((bool) \OC::$server->getSystemConfig()->getValue('maintenance', false)) && OC::$SUBURI != '/core/ajax/update.php') {
// send http status 503
http_response_code(503);
header('Retry-After: 120');
// render error page
$template = new OC_Template('', 'update.user', 'guest');
OC_Util::addScript('dist/maintenance');
OC_Util::addStyle('core', 'guest');
$template->printPage();
die();
}
}
/**
* Prints the upgrade page
*
* @param \OC\SystemConfig $systemConfig
*/
private static function printUpgradePage(\OC\SystemConfig $systemConfig) {
$disableWebUpdater = $systemConfig->getValue('upgrade.disable-web', false);
$tooBig = false;
if (!$disableWebUpdater) {
$apps = \OC::$server->getAppManager();
if ($apps->isInstalled('user_ldap')) {
$qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
$result = $qb->select($qb->func()->count('*', 'user_count'))
->from('ldap_user_mapping')
->execute();
$row = $result->fetch();
$result->closeCursor();
$tooBig = ($row['user_count'] > 50);
}
if (!$tooBig && $apps->isInstalled('user_saml')) {
$qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
$result = $qb->select($qb->func()->count('*', 'user_count'))
->from('user_saml_users')
->execute();
$row = $result->fetch();
$result->closeCursor();
$tooBig = ($row['user_count'] > 50);
}
if (!$tooBig) {
// count users
$stats = \OC::$server->getUserManager()->countUsers();
$totalUsers = array_sum($stats);
$tooBig = ($totalUsers > 50);
}
}
$ignoreTooBigWarning = isset($_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup']) &&
$_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup'] === 'IAmSuperSureToDoThis';
if ($disableWebUpdater || ($tooBig && !$ignoreTooBigWarning)) {
// send http status 503
http_response_code(503);
header('Retry-After: 120');
// render error page
$template = new OC_Template('', 'update.use-cli', 'guest');
$template->assign('productName', 'nextcloud'); // for now
$template->assign('version', OC_Util::getVersionString());
$template->assign('tooBig', $tooBig);
$template->printPage();
die();
}
// check whether this is a core update or apps update
$installedVersion = $systemConfig->getValue('version', '0.0.0');
$currentVersion = implode('.', \OCP\Util::getVersion());
// if not a core upgrade, then it's apps upgrade
$isAppsOnlyUpgrade = version_compare($currentVersion, $installedVersion, '=');
$oldTheme = $systemConfig->getValue('theme');
$systemConfig->setValue('theme', '');
OC_Util::addScript('update');
/** @var \OC\App\AppManager $appManager */
$appManager = \OC::$server->getAppManager();
$tmpl = new OC_Template('', 'update.admin', 'guest');
$tmpl->assign('version', OC_Util::getVersionString());
$tmpl->assign('isAppsOnlyUpgrade', $isAppsOnlyUpgrade);
// get third party apps
$ocVersion = \OCP\Util::getVersion();
$ocVersion = implode('.', $ocVersion);
$incompatibleApps = $appManager->getIncompatibleApps($ocVersion);
$incompatibleShippedApps = [];
foreach ($incompatibleApps as $appInfo) {
if ($appManager->isShipped($appInfo['id'])) {
$incompatibleShippedApps[] = $appInfo['name'] . ' (' . $appInfo['id'] . ')';
}
}
if (!empty($incompatibleShippedApps)) {
$l = \OC::$server->getL10N('core');
$hint = $l->t('The files of the app %1$s were not replaced correctly. Make sure it is a version compatible with the server.', [implode(', ', $incompatibleShippedApps)]);
throw new \OC\HintException('The files of the app ' . implode(', ', $incompatibleShippedApps) . ' were not replaced correctly. Make sure it is a version compatible with the server.', $hint);
}
$tmpl->assign('appsToUpgrade', $appManager->getAppsNeedingUpgrade($ocVersion));
$tmpl->assign('incompatibleAppsList', $incompatibleApps);
$tmpl->assign('productName', 'Nextcloud'); // for now
$tmpl->assign('oldTheme', $oldTheme);
$tmpl->printPage();
}
public static function initSession() {
if (self::$server->getRequest()->getServerProtocol() === 'https') {
ini_set('session.cookie_secure', true);
}
// prevents javascript from accessing php session cookies
ini_set('session.cookie_httponly', 'true');
// set the cookie path to the Nextcloud directory
$cookie_path = OC::$WEBROOT ? : '/';
ini_set('session.cookie_path', $cookie_path);
// Let the session name be changed in the initSession Hook
$sessionName = OC_Util::getInstanceId();
try {
// set the session name to the instance id - which is unique
$session = new \OC\Session\Internal($sessionName);
$cryptoWrapper = \OC::$server->getSessionCryptoWrapper();
$session = $cryptoWrapper->wrapSession($session);
self::$server->setSession($session);
// if session can't be started break with http 500 error
} catch (Exception $e) {
\OC::$server->getLogger()->logException($e, ['app' => 'base']);
//show the user a detailed error page
OC_Template::printExceptionErrorPage($e, 500);
die();
}
$sessionLifeTime = self::getSessionLifeTime();
// session timeout
if ($session->exists('LAST_ACTIVITY') && (time() - $session->get('LAST_ACTIVITY') > $sessionLifeTime)) {
if (isset($_COOKIE[session_name()])) {
setcookie(session_name(), '', -1, self::$WEBROOT ? : '/');
}
\OC::$server->getUserSession()->logout();
}
$session->set('LAST_ACTIVITY', time());
}
/**
* @return string
*/
private static function getSessionLifeTime() {
return \OC::$server->getConfig()->getSystemValue('session_lifetime', 60 * 60 * 24);
}
/**
* Try to set some values to the required Nextcloud default
*/
public static function setRequiredIniValues() {
@ini_set('default_charset', 'UTF-8');
@ini_set('gd.jpeg_ignore_warning', '1');
}
/**
* Send the same site cookies
*/
private static function sendSameSiteCookies() {
$cookieParams = session_get_cookie_params();
$secureCookie = ($cookieParams['secure'] === true) ? 'secure; ' : '';
$policies = [
'lax',
'strict',
];
// Append __Host to the cookie if it meets the requirements
$cookiePrefix = '';
if ($cookieParams['secure'] === true && $cookieParams['path'] === '/') {
$cookiePrefix = '__Host-';
}
foreach ($policies as $policy) {
header(
sprintf(
'Set-Cookie: %snc_sameSiteCookie%s=true; path=%s; httponly;' . $secureCookie . 'expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=%s',
$cookiePrefix,
$policy,
$cookieParams['path'],
$policy
),
false
);
}
}
/**
* Same Site cookie to further mitigate CSRF attacks. This cookie has to
* be set in every request if cookies are sent to add a second level of
* defense against CSRF.
*
* If the cookie is not sent this will set the cookie and reload the page.
* We use an additional cookie since we want to protect logout CSRF and
* also we can't directly interfere with PHP's session mechanism.
*/
private static function performSameSiteCookieProtection() {
$request = \OC::$server->getRequest();
// Some user agents are notorious and don't really properly follow HTTP
// specifications. For those, have an automated opt-out. Since the protection
// for remote.php is applied in base.php as starting point we need to opt out
// here.
$incompatibleUserAgents = \OC::$server->getConfig()->getSystemValue('csrf.optout');
// Fallback, if csrf.optout is unset
if (!is_array($incompatibleUserAgents)) {
$incompatibleUserAgents = [
// OS X Finder
'/^WebDAVFS/',
// Windows webdav drive
'/^Microsoft-WebDAV-MiniRedir/',
];
}
if ($request->isUserAgent($incompatibleUserAgents)) {
return;
}
if (count($_COOKIE) > 0) {
$requestUri = $request->getScriptName();
$processingScript = explode('/', $requestUri);
$processingScript = $processingScript[count($processingScript)-1];
// index.php routes are handled in the middleware
if ($processingScript === 'index.php') {
return;
}
// All other endpoints require the lax and the strict cookie
if (!$request->passesStrictCookieCheck()) {
self::sendSameSiteCookies();
// Debug mode gets access to the resources without strict cookie
// due to the fact that the SabreDAV browser also lives there.
if (!\OC::$server->getConfig()->getSystemValue('debug', false)) {
http_response_code(\OCP\AppFramework\Http::STATUS_SERVICE_UNAVAILABLE);
exit();
}
}
} elseif (!isset($_COOKIE['nc_sameSiteCookielax']) || !isset($_COOKIE['nc_sameSiteCookiestrict'])) {
self::sendSameSiteCookies();
}
}
public static function init() {
// calculate the root directories
OC::$SERVERROOT = str_replace("\\", '/', substr(__DIR__, 0, -4));
// register autoloader
$loaderStart = microtime(true);
require_once __DIR__ . '/autoloader.php';
self::$loader = new \OC\Autoloader([
OC::$SERVERROOT . '/lib/private/legacy',
]);
if (defined('PHPUNIT_RUN')) {
self::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
}
spl_autoload_register([self::$loader, 'load']);
$loaderEnd = microtime(true);
self::$CLI = (php_sapi_name() == 'cli');
// Add default composer PSR-4 autoloader
self::$composerAutoloader = require_once OC::$SERVERROOT . '/lib/composer/autoload.php';
try {
self::initPaths();
// setup 3rdparty autoloader
$vendorAutoLoad = OC::$SERVERROOT. '/3rdparty/autoload.php';
if (!file_exists($vendorAutoLoad)) {
throw new \RuntimeException('Composer autoloader not found, unable to continue. Check the folder "3rdparty". Running "git submodule update --init" will initialize the git submodule that handles the subfolder "3rdparty".');
}
require_once $vendorAutoLoad;
} catch (\RuntimeException $e) {
if (!self::$CLI) {
http_response_code(503);
}
// we can't use the template error page here, because this needs the
// DI container which isn't available yet
print($e->getMessage());
exit();
}
// setup the basic server
self::$server = new \OC\Server(\OC::$WEBROOT, self::$config);
self::$server->boot();
\OC::$server->getEventLogger()->log('autoloader', 'Autoloader', $loaderStart, $loaderEnd);
\OC::$server->getEventLogger()->start('boot', 'Initialize');
// Override php.ini and log everything if we're troubleshooting
if (self::$config->getValue('loglevel') === ILogger::DEBUG) {
error_reporting(E_ALL);
}
// Don't display errors and log them
@ini_set('display_errors', '0');
@ini_set('log_errors', '1');
if (!date_default_timezone_set('UTC')) {
throw new \RuntimeException('Could not set timezone to UTC');
}
//try to configure php to enable big file uploads.
//this doesn´t work always depending on the webserver and php configuration.
//Let´s try to overwrite some defaults anyway
//try to set the maximum execution time to 60min
if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
@set_time_limit(3600);
}
@ini_set('max_execution_time', '3600');
@ini_set('max_input_time', '3600');
//try to set the maximum filesize to 10G
@ini_set('upload_max_filesize', '10G');
@ini_set('post_max_size', '10G');
@ini_set('file_uploads', '50');
self::setRequiredIniValues();
self::handleAuthHeaders();
self::registerAutoloaderCache();
// initialize intl fallback is necessary
\Patchwork\Utf8\Bootup::initIntl();
OC_Util::isSetLocaleWorking();
if (!defined('PHPUNIT_RUN')) {
OC\Log\ErrorHandler::setLogger(\OC::$server->getLogger());
$debug = \OC::$server->getConfig()->getSystemValue('debug', false);
OC\Log\ErrorHandler::register($debug);
}
/** @var \OC\AppFramework\Bootstrap\Coordinator $bootstrapCoordinator */
$bootstrapCoordinator = \OC::$server->query(\OC\AppFramework\Bootstrap\Coordinator::class);
$bootstrapCoordinator->runRegistration();
\OC::$server->getEventLogger()->start('init_session', 'Initialize session');
OC_App::loadApps(['session']);
if (!self::$CLI) {
self::initSession();
}
\OC::$server->getEventLogger()->end('init_session');
self::checkConfig();
self::checkInstalled();
OC_Response::addSecurityHeaders();
self::performSameSiteCookieProtection();
if (!defined('OC_CONSOLE')) {
$errors = OC_Util::checkServer(\OC::$server->getSystemConfig());
if (count($errors) > 0) {
if (!self::$CLI) {
http_response_code(503);
OC_Util::addStyle('guest');
try {
OC_Template::printGuestPage('', 'error', ['errors' => $errors]);
exit;
} catch (\Exception $e) {
// In case any error happens when showing the error page, we simply fall back to posting the text.
// This might be the case when e.g. the data directory is broken and we can not load/write SCSS to/from it.
}
}
// Convert l10n string into regular string for usage in database
$staticErrors = [];
foreach ($errors as $error) {
echo $error['error'] . "\n";
echo $error['hint'] . "\n\n";
$staticErrors[] = [
'error' => (string)$error['error'],
'hint' => (string)$error['hint'],
];
}
try {
\OC::$server->getConfig()->setAppValue('core', 'cronErrors', json_encode($staticErrors));
} catch (\Exception $e) {
echo('Writing to database failed');
}
exit(1);
} elseif (self::$CLI && \OC::$server->getConfig()->getSystemValue('installed', false)) {
\OC::$server->getConfig()->deleteAppValue('core', 'cronErrors');
}
}
//try to set the session lifetime
$sessionLifeTime = self::getSessionLifeTime();
@ini_set('gc_maxlifetime', (string)$sessionLifeTime);
$systemConfig = \OC::$server->getSystemConfig();
// User and Groups
if (!$systemConfig->getValue("installed", false)) {
self::$server->getSession()->set('user_id', '');
}
OC_User::useBackend(new \OC\User\Database());
\OC::$server->getGroupManager()->addBackend(new \OC\Group\Database());
// Subscribe to the hook
\OCP\Util::connectHook(
'\OCA\Files_Sharing\API\Server2Server',
'preLoginNameUsedAsUserName',
'\OC\User\Database',
'preLoginNameUsedAsUserName'
);
//setup extra user backends
if (!\OCP\Util::needUpgrade()) {
OC_User::setupBackends();
} else {
// Run upgrades in incognito mode
OC_User::setIncognitoMode(true);
}
self::registerCleanupHooks();
self::registerFilesystemHooks();
self::registerShareHooks();
self::registerEncryptionWrapper();
self::registerEncryptionHooks();
self::registerAccountHooks();
self::registerResourceCollectionHooks();
self::registerAppRestrictionsHooks();
// Make sure that the application class is not loaded before the database is setup
if ($systemConfig->getValue("installed", false)) {
OC_App::loadApp('settings');
}
//make sure temporary files are cleaned up
$tmpManager = \OC::$server->getTempManager();
register_shutdown_function([$tmpManager, 'clean']);
$lockProvider = \OC::$server->getLockingProvider();
register_shutdown_function([$lockProvider, 'releaseAll']);
// Check whether the sample configuration has been copied
if ($systemConfig->getValue('copied_sample_config', false)) {
$l = \OC::$server->getL10N('lib');
OC_Template::printErrorPage(
$l->t('Sample configuration detected'),
$l->t('It has been detected that the sample configuration has been copied. This can break your installation and is unsupported. Please read the documentation before performing changes on config.php'),
503
);
return;
}
$request = \OC::$server->getRequest();
$host = $request->getInsecureServerHost();
/**
* if the host passed in headers isn't trusted
* FIXME: Should not be in here at all :see_no_evil:
*/
if (!OC::$CLI
&& !\OC::$server->getTrustedDomainHelper()->isTrustedDomain($host)
&& self::$server->getConfig()->getSystemValue('installed', false)
) {
// Allow access to CSS resources
$isScssRequest = false;
if (strpos($request->getPathInfo(), '/css/') === 0) {
$isScssRequest = true;
}
if (substr($request->getRequestUri(), -11) === '/status.php') {
http_response_code(400);
header('Content-Type: application/json');
echo '{"error": "Trusted domain error.", "code": 15}';
exit();
}
if (!$isScssRequest) {
http_response_code(400);
\OC::$server->getLogger()->info(
'Trusted domain error. "{remoteAddress}" tried to access using "{host}" as host.',
[
'app' => 'core',
'remoteAddress' => $request->getRemoteAddress(),
'host' => $host,
]
);
$tmpl = new OCP\Template('core', 'untrustedDomain', 'guest');
$tmpl->assign('docUrl', \OC::$server->getURLGenerator()->linkToDocs('admin-trusted-domains'));
$tmpl->printPage();
exit();
}
}
\OC::$server->getEventLogger()->end('boot');
}
/**
* register hooks for the cleanup of cache and bruteforce protection
*/
public static function registerCleanupHooks() {
//don't try to do this before we are properly setup
if (\OC::$server->getSystemConfig()->getValue('installed', false) && !\OCP\Util::needUpgrade()) {
// NOTE: This will be replaced to use OCP
$userSession = self::$server->getUserSession();
$userSession->listen('\OC\User', 'postLogin', function () use ($userSession) {
if (!defined('PHPUNIT_RUN') && $userSession->isLoggedIn()) {
// reset brute force delay for this IP address and username
$uid = \OC::$server->getUserSession()->getUser()->getUID();
$request = \OC::$server->getRequest();
$throttler = \OC::$server->getBruteForceThrottler();
$throttler->resetDelay($request->getRemoteAddress(), 'login', ['user' => $uid]);
}
try {
$cache = new \OC\Cache\File();
$cache->gc();
} catch (\OC\ServerNotAvailableException $e) {
// not a GC exception, pass it on
throw $e;
} catch (\OC\ForbiddenException $e) {
// filesystem blocked for this request, ignore
} catch (\Exception $e) {
// a GC exception should not prevent users from using OC,
// so log the exception
\OC::$server->getLogger()->logException($e, [
'message' => 'Exception when running cache gc.',
'level' => ILogger::WARN,
'app' => 'core',
]);
}
});
}
}
private static function registerEncryptionWrapper() {
$manager = self::$server->getEncryptionManager();
\OCP\Util::connectHook('OC_Filesystem', 'preSetup', $manager, 'setupStorage');
}
private static function registerEncryptionHooks() {
$enabled = self::$server->getEncryptionManager()->isEnabled();
if ($enabled) {
\OCP\Util::connectHook(Share::class, 'post_shared', HookManager::class, 'postShared');
\OCP\Util::connectHook(Share::class, 'post_unshare', HookManager::class, 'postUnshared');
\OCP\Util::connectHook('OC_Filesystem', 'post_rename', HookManager::class, 'postRename');
\OCP\Util::connectHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', HookManager::class, 'postRestore');
}
}
private static function registerAccountHooks() {
$hookHandler = new \OC\Accounts\Hooks(\OC::$server->getLogger());
\OCP\Util::connectHook('OC_User', 'changeUser', $hookHandler, 'changeUserHook');
}
private static function registerAppRestrictionsHooks() {
$groupManager = self::$server->query(\OCP\IGroupManager::class);
$groupManager->listen('\OC\Group', 'postDelete', function (\OCP\IGroup $group) {
$appManager = self::$server->getAppManager();
$apps = $appManager->getEnabledAppsForGroup($group);
foreach ($apps as $appId) {
$restrictions = $appManager->getAppRestriction($appId);
if (empty($restrictions)) {
continue;
}
$key = array_search($group->getGID(), $restrictions);
unset($restrictions[$key]);
$restrictions = array_values($restrictions);
if (empty($restrictions)) {
$appManager->disableApp($appId);
} else {
$appManager->enableAppForGroups($appId, $restrictions);
}
}
});
}
private static function registerResourceCollectionHooks() {
\OC\Collaboration\Resources\Listener::register(\OC::$server->getEventDispatcher());
}
/**
* register hooks for the filesystem
*/
public static function registerFilesystemHooks() {
// Check for blacklisted files
OC_Hook::connect('OC_Filesystem', 'write', Filesystem::class, 'isBlacklisted');
OC_Hook::connect('OC_Filesystem', 'rename', Filesystem::class, 'isBlacklisted');
}
/**
* register hooks for sharing
*/
public static function registerShareHooks() {
if (\OC::$server->getSystemConfig()->getValue('installed')) {
OC_Hook::connect('OC_User', 'post_deleteUser', Hooks::class, 'post_deleteUser');
OC_Hook::connect('OC_User', 'post_deleteGroup', Hooks::class, 'post_deleteGroup');
/** @var IEventDispatcher $dispatcher */
$dispatcher = \OC::$server->get(IEventDispatcher::class);
$dispatcher->addServiceListener(UserRemovedEvent::class, \OC\Share20\UserRemovedListener::class);
}
}
protected static function registerAutoloaderCache() {
// The class loader takes an optional low-latency cache, which MUST be
// namespaced. The instanceid is used for namespacing, but might be
// unavailable at this point. Furthermore, it might not be possible to
// generate an instanceid via \OC_Util::getInstanceId() because the
// config file may not be writable. As such, we only register a class
// loader cache if instanceid is available without trying to create one.
$instanceId = \OC::$server->getSystemConfig()->getValue('instanceid', null);
if ($instanceId) {
try {
$memcacheFactory = \OC::$server->getMemCacheFactory();
self::$loader->setMemoryCache($memcacheFactory->createLocal('Autoloader'));
} catch (\Exception $ex) {
}
}
}
/**
* Handle the request
*/
public static function handleRequest() {
\OC::$server->getEventLogger()->start('handle_request', 'Handle request');
$systemConfig = \OC::$server->getSystemConfig();
// Check if Nextcloud is installed or in maintenance (update) mode
if (!$systemConfig->getValue('installed', false)) {
\OC::$server->getSession()->clear();
$setupHelper = new OC\Setup(
$systemConfig,
\OC::$server->get(\bantu\IniGetWrapper\IniGetWrapper::class),
\OC::$server->getL10N('lib'),
\OC::$server->query(\OCP\Defaults::class),
\OC::$server->getLogger(),
\OC::$server->getSecureRandom(),
\OC::$server->query(\OC\Installer::class)
);
$controller = new OC\Core\Controller\SetupController($setupHelper);
$controller->run($_POST);
exit();
}
$request = \OC::$server->getRequest();
$requestPath = $request->getRawPathInfo();
if ($requestPath === '/heartbeat') {
return;
}
if (substr($requestPath, -3) !== '.js') { // we need these files during the upgrade
self::checkMaintenanceMode();
if (\OCP\Util::needUpgrade()) {
if (function_exists('opcache_reset')) {
opcache_reset();
}
if (!((bool) $systemConfig->getValue('maintenance', false))) {
self::printUpgradePage($systemConfig);
exit();
}
}
}
// emergency app disabling
if ($requestPath === '/disableapp'
&& $request->getMethod() === 'POST'
&& ((array)$request->getParam('appid')) !== ''
) {
\OC_JSON::callCheck();
\OC_JSON::checkAdminUser();
$appIds = (array)$request->getParam('appid');
foreach ($appIds as $appId) {
$appId = \OC_App::cleanAppId($appId);
\OC::$server->getAppManager()->disableApp($appId);
}
\OC_JSON::success();
exit();
}
// Always load authentication apps
OC_App::loadApps(['authentication']);
// Load minimum set of apps
if (!\OCP\Util::needUpgrade()
&& !((bool) $systemConfig->getValue('maintenance', false))) {
// For logged-in users: Load everything
if (\OC::$server->getUserSession()->isLoggedIn()) {
OC_App::loadApps();
} else {
// For guests: Load only filesystem and logging
OC_App::loadApps(['filesystem', 'logging']);
self::handleLogin($request);
}
}
if (!self::$CLI) {
try {
if (!((bool) $systemConfig->getValue('maintenance', false)) && !\OCP\Util::needUpgrade()) {
OC_App::loadApps(['filesystem', 'logging']);
OC_App::loadApps();
}
OC_Util::setupFS();
OC::$server->getRouter()->match(\OC::$server->getRequest()->getRawPathInfo());
return;
} catch (Symfony\Component\Routing\Exception\ResourceNotFoundException $e) {
//header('HTTP/1.0 404 Not Found');
} catch (Symfony\Component\Routing\Exception\MethodNotAllowedException $e) {
http_response_code(405);
return;
}
}
// Handle WebDAV
if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
// not allowed any more to prevent people
// mounting this root directly.
// Users need to mount remote.php/webdav instead.
http_response_code(405);
return;
}
// Someone is logged in
if (\OC::$server->getUserSession()->isLoggedIn()) {
OC_App::loadApps();
OC_User::setupBackends();
OC_Util::setupFS();
// FIXME
// Redirect to default application
OC_Util::redirectToDefaultPage();
} else {
// Not handled and not logged in
header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute('core.login.showLoginForm'));
}
}
/**
* Check login: apache auth, auth token, basic auth
*
* @param OCP\IRequest $request
* @return boolean
*/
public static function handleLogin(OCP\IRequest $request) {
$userSession = self::$server->getUserSession();
if (OC_User::handleApacheAuth()) {
return true;
}
if ($userSession->tryTokenLogin($request)) {
return true;
}
if (isset($_COOKIE['nc_username'])
&& isset($_COOKIE['nc_token'])
&& isset($_COOKIE['nc_session_id'])
&& $userSession->loginWithCookie($_COOKIE['nc_username'], $_COOKIE['nc_token'], $_COOKIE['nc_session_id'])) {
return true;
}
if ($userSession->tryBasicAuthLogin($request, \OC::$server->getBruteForceThrottler())) {
return true;
}
return false;
}
protected static function handleAuthHeaders() {
//copy http auth headers for apache+php-fcgid work around
if (isset($_SERVER['HTTP_XAUTHORIZATION']) && !isset($_SERVER['HTTP_AUTHORIZATION'])) {
$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['HTTP_XAUTHORIZATION'];
}
// Extract PHP_AUTH_USER/PHP_AUTH_PW from other headers if necessary.
$vars = [
'HTTP_AUTHORIZATION', // apache+php-cgi work around
'REDIRECT_HTTP_AUTHORIZATION', // apache+php-cgi alternative
];
foreach ($vars as $var) {
if (isset($_SERVER[$var]) && preg_match('/Basic\s+(.*)$/i', $_SERVER[$var], $matches)) {
$credentials = explode(':', base64_decode($matches[1]), 2);
if (count($credentials) === 2) {
$_SERVER['PHP_AUTH_USER'] = $credentials[0];
$_SERVER['PHP_AUTH_PW'] = $credentials[1];
break;
}
}
}
}
}
OC::init();
|