Infinite search on ldap if user does not exists in ldap

[jkroepke]

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Steps to reproduce (not tested this way)

1. Setup an OpenLDAP, create users.
2. Connect nextcloud and LDAP.
3. Delete a user in ldap
4. Delete the user in nextcloud (php occ user:delete <username>)

Expected behaviour

User is deleted

Actual behaviour

The operations hangs. Looking at openldap access log nextcloud starts to look in ldap instantly and infinitly. See access log below.

The strange things is that we don't have a filed called entryUUID and its not configured in the ldap config (see below)

This errors are triggered on other access, too. Since this errors appears without any administrative actions. But I can't figure them.

The UUID that nextcloud uses can be find in the database:

SELECT * FROM oc_ldap_user_mapping WHERE directory_uuid = '746e31c6-8186-1031-8b64-433663fd304d';
                  ldap_dn                  | owncloud_name |            directory_uuid
-------------------------------------------+---------------+--------------------------------------
 cn=aka,ou=extern,ou=users,c=de | aka           | 746e31c6-8186-1031-8b64-433663fd304d

But the LDAP object is gone in ldap_dn.

Server configuration

Operating system: Official nextcloud 19 container

Web server: nginx

Database: Postgres

PHP version: 7.4.6

Nextcloud version: (see Nextcloud admin page) 19.0.0

Updated from an older Nextcloud/ownCloud or fresh install: 18.0.4

Where did you install Nextcloud from: DockerHub

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:
  - accessibility: 1.5.0
  - activity: 2.12.0
  - admin_audit: 1.9.0
  - bruteforcesettings: 1.6.0
  - cloud_federation_api: 1.2.0
  - comments: 1.9.0
  - contactsinteraction: 1.0.0
  - dav: 1.15.0
  - federatedfilesharing: 1.9.0
  - files: 1.14.0
  - files_external: 1.10.0
  - files_pdfviewer: 1.8.0
  - files_rightclick: 0.16.0
  - files_sharing: 1.11.0
  - files_trashbin: 1.9.0
  - files_versions_s3: 0.1.3
  - files_videoplayer: 1.8.0
  - groupfolders: 6.0.6
  - logreader: 2.4.0
  - lookup_server_connector: 1.7.0
  - metadata: 0.11.1
  - notifications: 2.7.0
  - oauth2: 1.7.0
  - photos: 1.1.0
  - privacy: 1.3.0
  - provisioning_api: 1.9.0
  - serverinfo: 1.9.0
  - settings: 1.1.0
  - sharebymail: 1.9.0
  - systemtags: 1.9.0
  - text: 3.0.1
  - theming: 1.10.0
  - theming_customcss: 1.6.0
  - twofactor_backupcodes: 1.8.0
  - user_ldap: 1.9.0
  - viewer: 1.3.0
  - workflowengine: 2.1.0
Disabled:
  - encryption
  - federation
  - files_versions
  - firstrunwizard
  - nextcloud_announcements
  - password_policy
  - recommendations
  - sharerenamer
  - support
  - survey_client
  - updatenotification

Nextcloud configuration:

Config report

{
    "system": {
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "drops.example.com"
        ],
        "cache_path": "\/tmp",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "19.0.0.12",
        "overwrite.cli.url": "https:\/\/drops.example.com",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "allow_user_to_change_display_name": false,
        "skeletondirectory": "",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "overwritehost": "drops.example.com",
        "htaccess.RewriteBase": "\/",
        "appcodechecker": true,
        "logtimezone": "Europe\/Berlin",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "dbindex": 4
        },
        "quota_include_external_storage": false,
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "lost_password_link": "disabled",
        "upgrade.disable-web": false,
        "objectstore": {
            "class": "OC\\Files\\ObjectStore\\S3",
            "arguments": {
                "bucket": "adorsys-nextcloud",
                "key": "***REMOVED SENSITIVE VALUE***",
                "region": "eu-central-1",
                "secret": "***REMOVED SENSITIVE VALUE***"
            }
        },
        "check_data_directory_permissions": false,
        "ldapIgnoreNamingRules": false,
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "loglevel": 2,
        "maintenance": false,
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpport": "25",
        "tempdirectory": "\/tmp\/",
        "theme": "",
        "mail_smtpauth": 1,
        "mail_sendmailmode": "smtp",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "app_install_overwrite": [
            "sharerenamer",
            "bruteforcesettings"
        ]
    }
}

Are you using external storage, if yes which one: s3

Are you using encryption: no

Are you using an external user-backend, if yes which one: LDAP (openldap)

LDAP configuration (delete this part if not used)

LDAP config

+-------------------------------+-------------------------------------------------------------------------------------------------------+
| Configuration                 | s01                                                                                                   |
+-------------------------------+-------------------------------------------------------------------------------------------------------+
| hasMemberOfFilterSupport      |                                                                                                       |
| homeFolderNamingRule          |                                                                                                       |
| lastJpegPhotoLookup           | 0                                                                                                     |
| ldapAgentName                 | ou=pam,ou=roles,ou=administrationc=de                                                                 |
| ldapAgentPassword             | ***                                                                                                   |
| ldapAttributesForGroupSearch  | ou=groups,c=de                                                                                        |
| ldapAttributesForUserSearch   |                                                                                                       |
| ldapBackupHost                |                                                                                                       |
| ldapBackupPort                |                                                                                                       |
| ldapBase                      | ou=intern,ou=users,c=de                                                                               |
| ldapBaseGroups                | c=de                                                                                                  |
| ldapBaseUsers                 | ou=users,c=de                                                                                         |
| ldapCacheTTL                  | 600                                                                                                   |
| ldapConfigurationActive       | 1                                                                                                     |
| ldapDefaultPPolicyDN          |                                                                                                       |
| ldapDynamicGroupMemberURL     |                                                                                                       |
| ldapEmailAttribute            | mail                                                                                                  |
| ldapExperiencedAdmin          | 1                                                                                                     |
| ldapExpertUUIDGroupAttr       |                                                                                                       |
| ldapExpertUUIDUserAttr        |                                                                                                       |
| ldapExpertUsernameAttr        | cn                                                                                                    |
| ldapExtStorageHomeAttribute   |                                                                                                       |
| ldapGidNumber                 | gidNumber                                                                                             |
| ldapGroupDisplayName          | cn                                                                                                    |
| ldapGroupFilter               | (&(objectClass=posixGroup)(|(cn=dev-default)(cn=devops)))                                             |
| ldapGroupFilterGroups         |                                                                                                       |
| ldapGroupFilterMode           | 0                                                                                                     |
| ldapGroupFilterObjectclass    |                                                                                                       |
| ldapGroupMemberAssocAttr      | memberUid                                                                                             |
| ldapHost                      | ldap                                                                                                  |
| ldapIgnoreNamingRules         |                                                                                                       |
| ldapLoginFilter               | (&(uid=%uid)(objectclass=adsInetOrgPerson)(adsTechnicalAccount=0)(adsAccountLocked=0)(adsCanceled=0)) |
| ldapLoginFilterAttributes     |                                                                                                       |
| ldapLoginFilterEmail          | 0                                                                                                     |
| ldapLoginFilterMode           | 0                                                                                                     |
| ldapLoginFilterUsername       | 1                                                                                                     |
| ldapNestedGroups              | 0                                                                                                     |
| ldapOverrideMainServer        |                                                                                                       |
| ldapPagingSize                | 500                                                                                                   |
| ldapPort                      | 389                                                                                                   |
| ldapQuotaAttribute            |                                                                                                       |
| ldapQuotaDefault              |                                                                                                       |
| ldapTLS                       | 0                                                                                                     |
| ldapUserAvatarRule            | default                                                                                               |
| ldapUserDisplayName           | displayname                                                                                           |
| ldapUserDisplayName2          |                                                                                                       |
| ldapUserFilter                | (&(objectclass=adsInetOrgPerson)(adsTechnicalAccount=0)(adsAccountLocked=0)(adsCanceled=0))           |
| ldapUserFilterGroups          |                                                                                                       |
| ldapUserFilterMode            | 1                                                                                                     |
| ldapUserFilterObjectclass     | adsInetOrgPerson                                                                                      |
| ldapUuidGroupAttribute        | auto                                                                                                  |
| ldapUuidUserAttribute         | auto                                                                                                  |
| turnOffCertCheck              | 0                                                                                                     |
| turnOnPasswordChange          | 0                                                                                                     |
| useMemberOfToDetectMembership | 1                                                                                                     |
+-------------------------------+-------------------------------------------------------------------------------------------------------+

Client configuration

Browser: CLI

Operating system: N/A

Logs

If I execute the command above. no logs except

Trying to access array offset on value of type bool at /var/www/html/console.php#69

are produced.

OpenLDAP Access logs:

Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2353 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2354 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2354 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2354 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2355 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2355 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2355 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2356 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2356 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2356 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2357 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2357 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2357 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2358 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2358 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2358 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2359 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2359 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2359 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2360 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2360 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2360 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2361 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2361 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2361 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2362 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2362 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2362 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2363 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2363 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2363 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2364 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2364 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2364 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2365 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2365 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2365 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2366 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2366 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2366 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2367 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2367 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2367 SEARCH RESULT tag=101 err=0 nentries=0 text=
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2368 SRCH base="ou=users,c=de" scope=2 deref=0 filter="(entryUUID=746e31c6-8186-1031-8b64-433663fd304d)"
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2368 SRCH attr=dn
Jun  8 10:56:26 ip-10-124-1-219 slapd[2348]: conn=1410 op=2368 SEARCH RESULT tag=101 err=0 nentries=0 text=

Web server error log

Web server error log

Not related here.

Nextcloud log (data/nextcloud.log)

Nextcloud log

{"reqId":"Zj80LRuzhMmQSeDCtNr4","level":3,"time":"2020-06-08T10:25:13+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"Zj80LRuzhMmQSeDCtNr4","level":3,"time":"2020-06-08T10:25:13+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"eM9ZUPlPX4N1KYCT2AFO","level":3,"time":"2020-06-08T10:25:21+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"eM9ZUPlPX4N1KYCT2AFO","level":3,"time":"2020-06-08T10:25:21+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"9XJ30ySs1RLw1bHg7FYX","level":3,"time":"2020-06-08T10:25:26+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"9XJ30ySs1RLw1bHg7FYX","level":3,"time":"2020-06-08T10:25:26+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"FvGjCQ9NPDA5BbiwnOfV","level":3,"time":"2020-06-08T10:25:35+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"FvGjCQ9NPDA5BbiwnOfV","level":3,"time":"2020-06-08T10:25:35+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"p5uWhxmd8h0VuCdsJGd6","level":3,"time":"2020-06-08T10:25:38+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"p5uWhxmd8h0VuCdsJGd6","level":3,"time":"2020-06-08T10:25:38+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"XfXjAwpZ2sQxXu9KhZNw","level":3,"time":"2020-06-08T10:25:43+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"XfXjAwpZ2sQxXu9KhZNw","level":3,"time":"2020-06-08T10:25:43+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"Uk41B0ExAdVmKAS3XfxN","level":3,"time":"2020-06-08T10:25:45+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"Uk41B0ExAdVmKAS3XfxN","level":3,"time":"2020-06-08T10:25:45+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"mGhmoGoqTZ3hq7OKGPj8","level":3,"time":"2020-06-08T10:26:02+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"mGhmoGoqTZ3hq7OKGPj8","level":3,"time":"2020-06-08T10:26:02+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"GE2OIYxCXWHwBY1JhvUX","level":3,"time":"2020-06-08T10:28:45+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"GE2OIYxCXWHwBY1JhvUX","level":3,"time":"2020-06-08T10:28:45+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"YzC1DoMHEWyNOnAeMRDM","level":3,"time":"2020-06-08T10:28:57+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"YzC1DoMHEWyNOnAeMRDM","level":3,"time":"2020-06-08T10:28:57+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
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{"reqId":"9hcrwuc7JtfB02rNsvVu","level":3,"time":"2020-06-08T10:59:07+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"9hcrwuc7JtfB02rNsvVu","level":3,"time":"2020-06-08T10:59:07+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"8eCLzQvIguWeYCrJGcFf","level":3,"time":"2020-06-08T11:02:28+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"8eCLzQvIguWeYCrJGcFf","level":3,"time":"2020-06-08T11:02:28+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"f5AOQkb2aCHCCV3PGiV5","level":3,"time":"2020-06-08T11:02:50+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}
{"reqId":"f5AOQkb2aCHCCV3PGiV5","level":3,"time":"2020-06-08T11:02:51+02:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Trying to access array offset on value of type bool at /var/www/html/console.php#69","userAgent":"--","version":"19.0.0.12"}```
</details>

#### Browser log
<details>
<summary>Browser log</summary>

N/A

</details>

[kesselb]

cc @nextcloud/ldap

[blizzz]

Delete the user in nextcloud

what did you do exactly?

[jkroepke]

what did you do exactly?

I run php occ user:delete <username> from shell.

[blizzz]

@jkroepke I am quite confident this is already fixed with #21111 (will ship with 19.0.1). Can you confirm?

[jkroepke]

@blizzz I can't confirm this fix my issue.

Before I create this issue, I applied the patch manually.

I thought it was not related, because after I applied and test it, I saw it's only for PHP <= 7.2. I'm running PHP 7.4.

[blizzz]

I thought it was not related, because after I applied and test it, I saw it's only for PHP <= 7.2. I'm running PHP 7.4.

It turned out, it is not only <=7.2

[jkroepke]

But I applied the patch. I didn‘t see any difference.

Just to note that the error happens only in NC19 .

[blizzz]

Just to note that the error happens only in NC19 .

Yes, we had some structural changes there to make use of newer PHP APIs for paged search.

I'll have a look.

[jkroepke]

I'm wounding why nextcloud starts to autodetect the uuid (beginning by entryUUID) while we have the uuid defined in the config. It just happens, if the ldap object isn't available anymore.

As workaround, I had to delete the user from oc_ldap_user_mapping first. Then deletion was successful.

DELETE FROM oc_ldap_user_mapping WHERE directory_uuid = '746e31c6-8186-1031-8b64-433663fd304d';

[jpbraun]

Same here

[blizzz]

I'm wounding why nextcloud starts to autodetect the uuid (beginning by entryUUID) while we have the uuid defined in the config. It just happens, if the ldap object isn't available anymore.

It is not set in your-config (unless you changed it meanwhile) so it will be auto-detected. entryUUID is the first candidate and also that one used by openLDAP.

It should happen once to ensure the record is not present, but it should not repeat.

I'll have a look.

I was not able to reproduce it today with 19.0.0. I am also not seeing the error showing up in the log.

As workaround, I had to delete the user from oc_ldap_user_mapping first. Then deletion was successful.

This is not complete, don't use or recommend it as a workaround, please.