ldap_search(): Partial search results returned: Sizelimit exceeded at /var/www/nextcloud/apps/user_ldap/lib/LDAP.php#293

[mwries]

Steps to reproduce

[updated 20170724] When editing the LDAP configuration in the Admin page, in the tab "Groups" there is a button "Verify settings and count the groups". This triggers the error msg in the log.

Expected behaviour

No error

Actual behavior

Error in log

Server configuration

Operating system: Linux nextcloud.systemsnavigator.com 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:54:43 UTC 2017 x86_64

Web server: Apache/2.4.18 (Ubuntu) (apache2handler)

Database: pgsql PostgreSQL 9.5.7 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609, 64-bit

PHP version: 7.0.18-0ubuntu0.16.04.1
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, apache2handler, redis, PDO, xml, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, imap, intl, json, ldap, exif, mcrypt, pdo_pgsql, pgsql, Phar, posix, readline, shmop, SimpleXML, smbclient, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, libsmbclient, Zend OPcache

Nextcloud version: 12.0.0 - 12.0.0.29

Updated from an older Nextcloud/ownCloud or fresh install:
Fresh install

Where did you install Nextcloud from:
Nextcloud VM

Signing status:

Signing status

[]

List of activated apps:

App list

``` Enabled: - activity: 2.5.2 - comments: 1.2.0 - dav: 1.3.0 - federatedfilesharing: 1.2.0 - files: 1.7.2 - files_sharing: 1.4.0 - files_texteditor: 2.4.1 - files_trashbin: 1.2.0 - files_versions: 1.5.0 - gallery: 17.0.0 - issuetemplate: 0.2.1 - logreader: 2.0.0 - lookup_server_connector: 1.0.0 - nextcloud_announcements: 1.1 - notifications: 2.0.0 - oauth2: 1.0.5 - password_policy: 1.2.2 - provisioning_api: 1.2.0 - serverinfo: 1.2.0 - sharebymail: 1.2.0 - systemtags: 1.2.0 - theming: 1.3.0 - twofactor_backupcodes: 1.1.1 - updatenotification: 1.2.0 - user_ldap: 1.2.1 - workflowengine: 1.2.0

Disabled:

• admin_audit
• encryption
• federation
• files_external
• files_pdfviewer
• files_videoplayer
• firstrunwizard
• issuetemplate-master
• previewgenerator
• survey_client
• user_external

</details>

**The content of config/config.php:**
<details>
	<summary>Config report</summary>

{
"passwordsalt": "REMOVED SENSITIVE VALUE",
"secret": "REMOVED SENSITIVE VALUE",
"trusted_domains": [
"localhost",
"192.168.11.131",
"nextcloud.systemsnavigator.com"
],
"datadirectory": "/var/ncdatamnt",
"overwrite.cli.url": "https://nextcloud.systemsnavigator.com/",
"dbtype": "pgsql",
"version": "12.0.0.29",
"dbname": "nextcloud_db",
"dbhost": "localhost",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "REMOVED SENSITIVE VALUE",
"dbpassword": "REMOVED SENSITIVE VALUE",
"installed": true,
"instanceid": "oc6fxph0akpf",
"mail_smtpmode": "smtp",
"memcache.local": "\OC\Memcache\Redis",
"filelocking.enabled": true,
"memcache.distributed": "\OC\Memcache\Redis",
"memcache.locking": "\OC\Memcache\Redis",
"redis": {
"host": "/var/run/redis/redis.sock",
"port": 0,
"timeout": 0,
"dbindex": 0,
"password": "REMOVED SENSITIVE VALUE"
},
"htaccess.RewriteBase": "/",
"loglevel": "2",
"log_type": "file",
"logfile": "/var/ncdatamnt/nextcloud.log",
"logtimezone": "Europe/Amsterdam",
"maintenance": false,
"mail_from_address": "martijn.riesenkamp",
"mail_smtpauthtype": "LOGIN",
"mail_domain": "systemsnavigator.com",
"mail_smtpauth": 1,
"mail_smtphost": "smtp.office365.com",
"mail_smtpname": "REMOVED SENSITIVE VALUE",
"mail_smtppassword": "REMOVED SENSITIVE VALUE",
"mail_smtpport": "587",
"mail_smtpsecure": "tls",
"ldapIgnoreNamingRules": false,
"ldapProviderFactory": "\OCA\User_LDAP\LDAPProviderFactory",
"skeletondirectory": ""
}

</details>

**Are you using external storage, if yes which one:** files_external is disabled

**Are you using encryption:** no

**Are you using an external user-backend, if yes which one:** LDAP/ActiveDirectory/Webdav/...

#### LDAP configuration (delete this part if not used)
<details>
	<summary>LDAP config</summary>

	```
	With access to your command line run e.g.:
	sudo -u www-data php occ ldap:show-config
	from within your Nextcloud installation folder

	Without access to your command line download the data/owncloud.db to your local
	computer or access your SQL server remotely and run the select query:
	SELECT * FROM `oc_appconfig` WHERE `appid` = 'user_ldap';


	Eventually replace sensitive data as the name/IP-address of your LDAP server or groups.
	```
</details>
### Client configuration
**Browser:** Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393

**Operating system:**

### Logs
#### Web server error log
<details>
	<summary>Web server error log</summary>
	```
	Insert your webserver log here
	```
</details>

#### Nextcloud log (data/nextcloud.log)
<details>
	<summary>Nextcloud log</summary>
	```
ldap_search(): Partial search results returned: Sizelimit exceeded at /var/www/nextcloud/apps/user_ldap/lib/LDAP.php#293
	```
</details>

#### Browser log
<details>
	<summary>Browser log</summary>
	```
	Insert your browser log here, this could for example include:

	a) The javascript console log
	b) The network log
	c) ...
	```
</details>

[mwries]

cc @enoch85

[enoch85]

@blizzz Do you have any idea?

[mwries]

I found the trigger:

When editing the LDAP configuration in the Admin page, in the tab "Groups" there is a button "Verify settings and count the groups". This triggers the error msg in the log.

[GitHubUser4234]

I also got this error sometimes (not always) when accessing the "Users" page. Here the related log:

2017-08-15 14:58:23 [INFO] Line content: {"reqId":"WZKbj9kMP3C3lLVAvtcomwAAAAI","level":3,"time":"2017-08-15T14:58:23+08:00","remoteAddr":"10.88.180.5","user":"tester1","app":"PHP","method":"POST","url":"/index.php/apps/user_ldap/ajax/wizard.php","message":"ldap_search(): Partial search results returned: Sizelimit exceeded at /www/nextcloud/apps/user_ldap/lib/LDAP.php#293","userAgent":"Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0","version":"12.0.0.29"}

[Nayar]

Any fix for this bug?

[blizzz]

It's a false positive. Let's keep #2947 to have a second look and silence it at some point. closing this as dup.