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
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Derek <derek.kelly27@gmail.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Ko- <k.stoffelen@cs.ru.nl>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @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/>
*
*/
namespace OC\Settings\Controller;
use bantu\IniGetWrapper\IniGetWrapper;
use DirectoryIterator;
use Doctrine\DBAL\DBALException;
use Doctrine\DBAL\Platforms\SqlitePlatform;
use GuzzleHttp\Exception\ClientException;
use OC;
use OC\AppFramework\Http;
use OC\DB\Connection;
use OC\DB\MissingIndexInformation;
use OC\IntegrityCheck\Checker;
use OC\Lock\NoopLockingProvider;
use OC\MemoryInfo;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http\DataDisplayResponse;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\IDateTimeFormatter;
use OCP\IDBConnection;
use OCP\IL10N;
use OCP\ILogger;
use OCP\IRequest;
use OCP\IURLGenerator;
use OCP\Lock\ILockingProvider;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\GenericEvent;
/**
* @package OC\Settings\Controller
*/
class CheckSetupController extends Controller {
/** @var IConfig */
private $config;
/** @var IClientService */
private $clientService;
/** @var \OC_Util */
private $util;
/** @var IURLGenerator */
private $urlGenerator;
/** @var IL10N */
private $l10n;
/** @var Checker */
private $checker;
/** @var ILogger */
private $logger;
/** @var EventDispatcherInterface */
private $dispatcher;
/** @var IDBConnection|Connection */
private $db;
/** @var ILockingProvider */
private $lockingProvider;
/** @var IDateTimeFormatter */
private $dateTimeFormatter;
/** @var MemoryInfo */
private $memoryInfo;
public function __construct($AppName,
IRequest $request,
IConfig $config,
IClientService $clientService,
IURLGenerator $urlGenerator,
\OC_Util $util,
IL10N $l10n,
Checker $checker,
ILogger $logger,
EventDispatcherInterface $dispatcher,
IDBConnection $db,
ILockingProvider $lockingProvider,
IDateTimeFormatter $dateTimeFormatter,
MemoryInfo $memoryInfo) {
parent::__construct($AppName, $request);
$this->config = $config;
$this->clientService = $clientService;
$this->util = $util;
$this->urlGenerator = $urlGenerator;
$this->l10n = $l10n;
$this->checker = $checker;
$this->logger = $logger;
$this->dispatcher = $dispatcher;
$this->db = $db;
$this->lockingProvider = $lockingProvider;
$this->dateTimeFormatter = $dateTimeFormatter;
$this->memoryInfo = $memoryInfo;
}
/**
* Checks if the server can connect to the internet using HTTPS and HTTP
* @return bool
*/
private function isInternetConnectionWorking() {
if ($this->config->getSystemValue('has_internet_connection', true) === false) {
return false;
}
$siteArray = ['www.nextcloud.com',
'www.startpage.com',
'www.eff.org',
'www.edri.org',
];
foreach($siteArray as $site) {
if ($this->isSiteReachable($site)) {
return true;
}
}
return false;
}
/**
* Checks if the Nextcloud server can connect to a specific URL using both HTTPS and HTTP
* @return bool
*/
private function isSiteReachable($sitename) {
$httpSiteName = 'http://' . $sitename . '/';
$httpsSiteName = 'https://' . $sitename . '/';
try {
$client = $this->clientService->newClient();
$client->get($httpSiteName);
$client->get($httpsSiteName);
} catch (\Exception $e) {
$this->logger->logException($e, ['app' => 'internet_connection_check']);
return false;
}
return true;
}
/**
* Checks whether a local memcache is installed or not
* @return bool
*/
private function isMemcacheConfigured() {
return $this->config->getSystemValue('memcache.local', null) !== null;
}
/**
* Whether /dev/urandom is available to the PHP controller
*
* @return bool
*/
private function isUrandomAvailable() {
if(@file_exists('/dev/urandom')) {
$file = fopen('/dev/urandom', 'rb');
if($file) {
fclose($file);
return true;
}
}
return false;
}
/**
* Public for the sake of unit-testing
*
* @return array
*/
protected function getCurlVersion() {
return curl_version();
}
/**
* Check if the used SSL lib is outdated. Older OpenSSL and NSS versions do
* have multiple bugs which likely lead to problems in combination with
* functionality required by ownCloud such as SNI.
*
* @link https://github.com/owncloud/core/issues/17446#issuecomment-122877546
* @link https://bugzilla.redhat.com/show_bug.cgi?id=1241172
* @return string
*/
private function isUsedTlsLibOutdated() {
// Don't run check when:
// 1. Server has `has_internet_connection` set to false
// 2. AppStore AND S2S is disabled
if(!$this->config->getSystemValue('has_internet_connection', true)) {
return '';
}
if(!$this->config->getSystemValue('appstoreenabled', true)
&& $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes') === 'no'
&& $this->config->getAppValue('files_sharing', 'incoming_server2server_share_enabled', 'yes') === 'no') {
return '';
}
$versionString = $this->getCurlVersion();
if(isset($versionString['ssl_version'])) {
$versionString = $versionString['ssl_version'];
} else {
return '';
}
$features = (string)$this->l10n->t('installing and updating apps via the app store or Federated Cloud Sharing');
if(!$this->config->getSystemValue('appstoreenabled', true)) {
$features = (string)$this->l10n->t('Federated Cloud Sharing');
}
// Check if at least OpenSSL after 1.01d or 1.0.2b
if(strpos($versionString, 'OpenSSL/') === 0) {
$majorVersion = substr($versionString, 8, 5);
$patchRelease = substr($versionString, 13, 6);
if(($majorVersion === '1.0.1' && ord($patchRelease) < ord('d')) ||
($majorVersion === '1.0.2' && ord($patchRelease) < ord('b'))) {
return (string) $this->l10n->t('cURL is using an outdated %s version (%s). Please update your operating system or features such as %s will not work reliably.', ['OpenSSL', $versionString, $features]);
}
}
// Check if NSS and perform heuristic check
if(strpos($versionString, 'NSS/') === 0) {
try {
$firstClient = $this->clientService->newClient();
$firstClient->get('https://nextcloud.com/');
$secondClient = $this->clientService->newClient();
$secondClient->get('https://nextcloud.com/');
} catch (ClientException $e) {
if($e->getResponse()->getStatusCode() === 400) {
return (string) $this->l10n->t('cURL is using an outdated %s version (%s). Please update your operating system or features such as %s will not work reliably.', ['NSS', $versionString, $features]);
}
}
}
return '';
}
/**
* Whether the version is outdated
*
* @return bool
*/
protected function isPhpOutdated() {
if (version_compare(PHP_VERSION, '7.0.0', '<')) {
return true;
}
return false;
}
/**
* Whether the php version is still supported (at time of release)
* according to: https://secure.php.net/supported-versions.php
*
* @return array
*/
private function isPhpSupported() {
return ['eol' => $this->isPhpOutdated(), 'version' => PHP_VERSION];
}
/**
* Check if the reverse proxy configuration is working as expected
*
* @return bool
*/
private function forwardedForHeadersWorking() {
$trustedProxies = $this->config->getSystemValue('trusted_proxies', []);
$remoteAddress = $this->request->getRemoteAddress();
if (is_array($trustedProxies) && in_array($remoteAddress, $trustedProxies)) {
return false;
}
// either not enabled or working correctly
return true;
}
/**
* Checks if the correct memcache module for PHP is installed. Only
* fails if memcached is configured and the working module is not installed.
*
* @return bool
*/
private function isCorrectMemcachedPHPModuleInstalled() {
if ($this->config->getSystemValue('memcache.distributed', null) !== '\OC\Memcache\Memcached') {
return true;
}
// there are two different memcached modules for PHP
// we only support memcached and not memcache
// https://code.google.com/p/memcached/wiki/PHPClientComparison
return !(!extension_loaded('memcached') && extension_loaded('memcache'));
}
/**
* Checks if set_time_limit is not disabled.
*
* @return bool
*/
private function isSettimelimitAvailable() {
if (function_exists('set_time_limit')
&& strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
return true;
}
return false;
}
/**
* @return RedirectResponse
*/
public function rescanFailedIntegrityCheck() {
$this->checker->runInstanceVerification();
return new RedirectResponse(
$this->urlGenerator->linkToRoute('settings.AdminSettings.index')
);
}
/**
* @NoCSRFRequired
* @return DataResponse
*/
public function getFailedIntegrityCheckFiles() {
if(!$this->checker->isCodeCheckEnforced()) {
return new DataDisplayResponse('Integrity checker has been disabled. Integrity cannot be verified.');
}
$completeResults = $this->checker->getResults();
if(!empty($completeResults)) {
$formattedTextResponse = 'Technical information
=====================
The following list covers which files have failed the integrity check. Please read
the previous linked documentation to learn more about the errors and how to fix
them.
Results
=======
';
foreach($completeResults as $context => $contextResult) {
$formattedTextResponse .= "- $context\n";
foreach($contextResult as $category => $result) {
$formattedTextResponse .= "\t- $category\n";
if($category !== 'EXCEPTION') {
foreach ($result as $key => $results) {
$formattedTextResponse .= "\t\t- $key\n";
}
} else {
foreach ($result as $key => $results) {
$formattedTextResponse .= "\t\t- $results\n";
}
}
}
}
$formattedTextResponse .= '
Raw output
==========
';
$formattedTextResponse .= print_r($completeResults, true);
} else {
$formattedTextResponse = 'No errors have been found.';
}
$response = new DataDisplayResponse(
$formattedTextResponse,
Http::STATUS_OK,
[
'Content-Type' => 'text/plain',
]
);
return $response;
}
/**
* Checks whether a PHP opcache is properly set up
* @return bool
*/
protected function isOpcacheProperlySetup() {
$iniWrapper = new IniGetWrapper();
if(!$iniWrapper->getBool('opcache.enable')) {
return false;
}
if(!$iniWrapper->getBool('opcache.save_comments')) {
return false;
}
if(!$iniWrapper->getBool('opcache.enable_cli')) {
return false;
}
if($iniWrapper->getNumeric('opcache.max_accelerated_files') < 10000) {
return false;
}
if($iniWrapper->getNumeric('opcache.memory_consumption') < 128) {
return false;
}
if($iniWrapper->getNumeric('opcache.interned_strings_buffer') < 8) {
return false;
}
return true;
}
/**
* Check if the required FreeType functions are present
* @return bool
*/
protected function hasFreeTypeSupport() {
return function_exists('imagettfbbox') && function_exists('imagettftext');
}
protected function hasMissingIndexes(): array {
$indexInfo = new MissingIndexInformation();
// Dispatch event so apps can also hint for pending index updates if needed
$event = new GenericEvent($indexInfo);
$this->dispatcher->dispatch(IDBConnection::CHECK_MISSING_INDEXES_EVENT, $event);
return $indexInfo->getListOfMissingIndexes();
}
/**
* warn if outdated version of a memcache module is used
*/
protected function getOutdatedCaches(): array {
$caches = [
'apcu' => ['name' => 'APCu', 'version' => '4.0.6'],
'redis' => ['name' => 'Redis', 'version' => '2.2.5'],
];
$outdatedCaches = [];
foreach ($caches as $php_module => $data) {
$isOutdated = extension_loaded($php_module) && version_compare(phpversion($php_module), $data['version'], '<');
if ($isOutdated) {
$outdatedCaches[] = $data;
}
}
return $outdatedCaches;
}
protected function isSqliteUsed() {
return strpos($this->config->getSystemValue('dbtype'), 'sqlite') !== false;
}
protected function isReadOnlyConfig(): bool {
return \OC_Helper::isReadOnlyConfigEnabled();
}
protected function hasValidTransactionIsolationLevel(): bool {
try {
if ($this->db->getDatabasePlatform() instanceof SqlitePlatform) {
return true;
}
return $this->db->getTransactionIsolation() === Connection::TRANSACTION_READ_COMMITTED;
} catch (DBALException $e) {
// ignore
}
return true;
}
protected function hasFileinfoInstalled(): bool {
return \OC_Util::fileInfoLoaded();
}
protected function hasWorkingFileLocking(): bool {
return !($this->lockingProvider instanceof NoopLockingProvider);
}
protected function getSuggestedOverwriteCliURL(): string {
$suggestedOverwriteCliUrl = '';
if ($this->config->getSystemValue('overwrite.cli.url', '') === '') {
$suggestedOverwriteCliUrl = $this->request->getServerProtocol() . '://' . $this->request->getInsecureServerHost() . \OC::$WEBROOT;
if (!$this->config->getSystemValue('config_is_read_only', false)) {
// Set the overwrite URL when it was not set yet.
$this->config->setSystemValue('overwrite.cli.url', $suggestedOverwriteCliUrl);
$suggestedOverwriteCliUrl = '';
}
}
return $suggestedOverwriteCliUrl;
}
protected function getLastCronInfo(): array {
$lastCronRun = $this->config->getAppValue('core', 'lastcron', 0);
return [
'diffInSeconds' => time() - $lastCronRun,
'relativeTime' => $this->dateTimeFormatter->formatTimeSpan($lastCronRun),
'backgroundJobsUrl' => $this->urlGenerator->linkToRoute('settings.AdminSettings.index', ['section' => 'server']) . '#backgroundjobs',
];
}
protected function getCronErrors() {
$errors = json_decode($this->config->getAppValue('core', 'cronErrors', ''), true);
if (is_array($errors)) {
return $errors;
}
return [];
}
protected function isPhpMailerUsed(): bool {
return $this->config->getSystemValue('mail_smtpmode', 'smtp') === 'php';
}
protected function hasOpcacheLoaded(): bool {
return function_exists('opcache_get_status');
}
/**
* Iterates through the configured app roots and
* tests if the subdirectories are owned by the same user than the current user.
*
* @return array
*/
protected function getAppDirsWithDifferentOwner(): array {
$currentUser = posix_getuid();
$appDirsWithDifferentOwner = [[]];
foreach (OC::$APPSROOTS as $appRoot) {
if ($appRoot['writable'] === true) {
$appDirsWithDifferentOwner[] = $this->getAppDirsWithDifferentOwnerForAppRoot($currentUser, $appRoot);
}
}
$appDirsWithDifferentOwner = array_merge(...$appDirsWithDifferentOwner);
sort($appDirsWithDifferentOwner);
return $appDirsWithDifferentOwner;
}
/**
* Tests if the directories for one apps directory are writable by the current user.
*
* @param int $currentUser The current user
* @param array $appRoot The app root config
* @return string[] The none writable directory paths inside the app root
*/
private function getAppDirsWithDifferentOwnerForAppRoot(int $currentUser, array $appRoot): array {
$appDirsWithDifferentOwner = [];
$appsPath = $appRoot['path'];
$appsDir = new DirectoryIterator($appRoot['path']);
foreach ($appsDir as $fileInfo) {
if ($fileInfo->isDir() && !$fileInfo->isDot()) {
$absAppPath = $appsPath . DIRECTORY_SEPARATOR . $fileInfo->getFilename();
$appDirUser = fileowner($absAppPath);
if ($appDirUser !== $currentUser) {
$appDirsWithDifferentOwner[] = $absAppPath;
}
}
}
return $appDirsWithDifferentOwner;
}
/**
* @return DataResponse
*/
public function check() {
return new DataResponse(
[
'isGetenvServerWorking' => !empty(getenv('PATH')),
'isReadOnlyConfig' => $this->isReadOnlyConfig(),
'hasValidTransactionIsolationLevel' => $this->hasValidTransactionIsolationLevel(),
'outdatedCaches' => $this->getOutdatedCaches(),
'hasFileinfoInstalled' => $this->hasFileinfoInstalled(),
'hasWorkingFileLocking' => $this->hasWorkingFileLocking(),
'suggestedOverwriteCliURL' => $this->getSuggestedOverwriteCliURL(),
'cronInfo' => $this->getLastCronInfo(),
'cronErrors' => $this->getCronErrors(),
'serverHasInternetConnection' => $this->isInternetConnectionWorking(),
'isMemcacheConfigured' => $this->isMemcacheConfigured(),
'memcacheDocs' => $this->urlGenerator->linkToDocs('admin-performance'),
'isUrandomAvailable' => $this->isUrandomAvailable(),
'securityDocs' => $this->urlGenerator->linkToDocs('admin-security'),
'isUsedTlsLibOutdated' => $this->isUsedTlsLibOutdated(),
'phpSupported' => $this->isPhpSupported(),
'forwardedForHeadersWorking' => $this->forwardedForHeadersWorking(),
'reverseProxyDocs' => $this->urlGenerator->linkToDocs('admin-reverse-proxy'),
'isCorrectMemcachedPHPModuleInstalled' => $this->isCorrectMemcachedPHPModuleInstalled(),
'hasPassedCodeIntegrityCheck' => $this->checker->hasPassedCheck(),
'codeIntegrityCheckerDocumentation' => $this->urlGenerator->linkToDocs('admin-code-integrity'),
'isOpcacheProperlySetup' => $this->isOpcacheProperlySetup(),
'hasOpcacheLoaded' => $this->hasOpcacheLoaded(),
'phpOpcacheDocumentation' => $this->urlGenerator->linkToDocs('admin-php-opcache'),
'isSettimelimitAvailable' => $this->isSettimelimitAvailable(),
'hasFreeTypeSupport' => $this->hasFreeTypeSupport(),
'missingIndexes' => $this->hasMissingIndexes(),
'isSqliteUsed' => $this->isSqliteUsed(),
'databaseConversionDocumentation' => $this->urlGenerator->linkToDocs('admin-db-conversion'),
'isPhpMailerUsed' => $this->isPhpMailerUsed(),
'mailSettingsDocumentation' => $this->urlGenerator->getAbsoluteURL('index.php/settings/admin'),
'isMemoryLimitSufficient' => $this->memoryInfo->isMemoryLimitSufficient(),
'appDirsWithDifferentOwner' => $this->getAppDirsWithDifferentOwner(),
]
);
}
}
|