Apps Config.php Parameters
- Introduction
- Multiple configuration files
- App: Activity
- App: Admin Audit
- App: Files Antivirus
- App: Files PDF Viewer
- App: Files Versions
- App: Firstrunwizard
- App: Kerberos
- App: LDAP
- App: Market
- App: Metrics
- App: Microsoft Office Online (WOPI)
- App: Microsoft Teams Bridge
- App: OpenID Connect (OIDC)
- App: Richdocuments
- App: S3 Primary Object Storage
- App: Windows Network Drive (WND)
- App: Workflow / Tagging
Introduction
This document describes parameters for apps maintained by ownCloud that are not part of the core system.
All keys are only valid if the corresponding app is installed and enabled.
You must copy the keys needed to the active config.php
file.
Multiple configuration files
ownCloud supports loading configuration parameters from multiple files. You can add arbitrary files ending with .config.php in the config/ directory.
Example:
You could place your email server configuration in email.config.php
.
This allows you to easily create and manage custom configurations or to divide a large complex configuration file into a set of smaller files.
These custom files are not overwritten by ownCloud, and the values in these files take precedence over config.php
.
ownCloud may write configurations into config.php
.
These configurations may conflict with identical keys already set in additional config files. Be careful when using this capability!
App: Admin Audit
App: Files Antivirus
Possible key: files_antivirus.av_path
STRING
Possible key: files_antivirus.av_cmd_options
STRING
App: Files PDF Viewer
Possible key: files_pdfviewer.enableScripting
STRING
PDF files may contain JavaScript which for example can be necessary to process editable fields. Under normal circumstances and for security reasons, scripts are not allowed to be processed. To allow processing these scripts, the following config key can be set. Note that enabling scripting can be a major security issue and should be considered as possible thread vector.
App: Files Versions
Possible key: versions_retention_obligation
STRING
Use following values to configure the retention behaviour. Replace D
with the number of days.
- auto
-
Default value if nothing is set
- D, auto
-
Keep versions at least for D days, apply expiration rules to all versions that are older than D days
- auto, D
-
Delete all versions that are older than D days automatically, delete other versions according to expiration rules
- D1, D2
-
Keep versions for at least D1 days and delete when they exceed D2 days
- disabled
-
Disable Versions; no files will be deleted.
App: Firstrunwizard
App: Kerberos
Possible key: kerberos.keytab
STRING
Possible key: kerberos.suppress.timeout
INTEGER
Possible key: kerberos.domain
STRING
Possible key: kerberos.login.buttonName
STRING
Possible key: kerberos.login.autoRedirect
BOOL
Kerberos SPNEGO Timeout
Timeout before re-enabling SPNEGO based authentication after logout, defaults to 60 seconds.
Kerberos Domain
The domain name - remove from principals to match the pure user name.
Example: 'alice@corp.dir' will look for the user 'alice' in LDAP if 'kerberos.domain' is set to 'corp.dir'.
App: Metrics
Note: This app is for Enterprise customers only.
Possible key: metrics_shared_secret
STRING
Secret to use the Metrics dashboard
You have to set a Metrics secret to use the dashboard. You cannot use the dashboard
without defining a secret. You can use any secret you like. In case you want to generate
a random secret, use the following example command:
echo $(tr -dc 'a-z0-9' < /dev/urandom | head -c 20)
It is also possible to set this secret via an occ command which writes key and data to the
config.php file. Please see the occ command documentation for more information.
App: Microsoft Office Online (WOPI)
Note: This app is for Enterprise customers only.
Possible key: wopi.token.key
STRING
Possible key: wopi.proxy.key
STRING
Possible key: wopi.office-online.server
URL
Possible key: wopi_group
STRING
Possible key: wopi.proxy.url
URL
Possible key: wopi.business-flow.enabled
STRING
Random Keys Created by the ownCloud Admin
Both, wopi.token.key
and wopi.proxy.key
are random keys created by the ownCloud admin.
The keys are used by ownCloud to create encrypted JWT tokens for the communication with your
Microsoft Office Online instance. The keys must be distinct.
Note that wopi.token.key
must be at least 32 bytes long.
You can use the following example command to generate a random key:
echo $(tr -dc 'a-z0-9' < /dev/urandom | head -c 32)
Microsoft Office Online instance URL
This is the URL of the Microsoft Office Online instance ownCloud communicates with. Keep in mind that you need to grant communication access at your Microsoft Office Online instance with this ownCloud instance. For further information, read the ownCloud documentation.
Define the group name for users allowed to use Microsoft Office Online
Restrict access to Microsoft Office Online to a defined group. Please note, only one group can be defined. Default = empty = no restriction.
Define the Proxy URL
This global option defines the proxy URL if you are a Microsoft Business user.
Note that you will get a working URL from ownCloud Support after you provide a written declaration that your company has an eligible Microsoft Business contract.
Define if Business Flow Is Enabled
This global option defines if Office users are business users.
In that case, Office Online will check if the user logged in has an Office 365 business account. If not, the user must sign in and Office Online will check if the subscription is valid. Use yes to enable it and no to disable it or remove the key completely. To use this option, you need at least ownCloud’s Microsoft Office Online app version 1.6.0.
App: Microsoft Teams Bridge
Possible key: msteamsbridge
ARRAY
Sub key: loginButtonName
STRING
Login Button Label
This key is necessary for security reasons. Users will be asked to click a login button each time when accessing the ownCloud app after a fresh start of their Microsoft Teams app or after idle time. This behavior is by design. The button name can be freely set based on your requirements.
App: OpenID Connect (OIDC)
Possible key: openid-connect
ARRAY
Configure OpenID Connect - all possible sub-keys
You have to use the main key openid-connect
together with sub keys listed below, see code samples.
- allowed-user-backends
-
Limit the users which are allowed to login to a specific user backend - e.g. LDAP (
'allowed-user-backends' ⇒ ['LDAP']
) - auth-params
-
Additional parameters which are sent to the IdP during the auth requests
- autoRedirectOnLoginPage
-
If
true
, the ownCloud login page will redirect directly to the Identity Provider login without requiring the user to click a button. The default isfalse
. - auto-provision
-
If
auto-provision
is setup, an ownCloud user will be created if not exists, after successful login using openid connect. The config parametersmode
andsearch-attribute
will be used to create a unique user so that the lookup mechanism can find the user again. This is where an LDAP setup is usually required. The profile picture will only be transferred upon account creation, but will not be updated afterwards if it changes in the connected IdP. Ifauto-provision
is not setup or required, it is expected that the user exists and you MUST declare this with['enabled' ⇒ false]
like shown in the Easy Setup example.auto-provision
holds several sub keys, see the example setup with the explanations below. - auto-update
-
When using the provisioning mode
auto-update
, user account info will update with the current information provided by the OpenID Connect provider upon each user log in. - insecure
-
Boolean value (
true
/false
), no SSL verification will take place when talking to the IdP - DO NOT use in production! - jwt-self-signed-jwk-header-supported
-
If set to true, JWK (JSON Web Token) will be taken from the JWT header instead of the IdP’s jwks_uri. Should only be enabled in exceptional cases as this could lead to vulnerabilities https://portswigger.net/kb/issues/00200902_jwt-self-signed-jwk-header-supported
- loginButtonName
-
The name as displayed on the login screen which is used to redirect to the IdP. By default, the OpenID Connect App will add a button on the login page that will redirect the user to the Identity Provider and allow authentication via OIDC. This parameter allows the button text to be modified.
- mode
-
This is the attribute in the owncloud accounts table to search for users. The default value is
email
. The alternative value is:userid
. - post_logout_redirect_uri
-
A given URL where the IdP should redirect to after logout.
- provider-params
-
Additional config array depending on the IdP to be entered here - usually only necessary if the IdP does not support service discovery.
- provider-url, client-id and client-secret
-
Variables are to be taken from the OpenID Connect Provider’s setup. For the
provider-url
, the URL where the IdP is living. In some cases (KeyCloak, Azure AD) this holds more than just a domain but also a path. - redirect-url
-
The full URL under which the ownCloud OpenId Connect redirect URL is reachable - only needed in special setups.
- scopes
-
Enter the list of required scopes depending on the IdP setup.
- search-attribute
-
The attribute which is taken from the access token JWT or user info endpoint to identify the user. This is the claim from the OpenID Connect user information which shall be used for searching in the accounts table. The default value is
email
. For more information about the claim, see https://openid.net/specs/openid-connect-core-1_0.html#Claims. - token-introspection-endpoint-client-id
-
Client ID to be used with the token introspection endpoint.
- token-introspection-endpoint-client-secret
-
Client secret to be used with the token introspection endpoint.
- use-access-token-payload-for-user-info
-
If set to
true
any user information will be read from the access token. If set tofalse
the userinfo endpoint is used (starting app version 1.1.0).
Easy setup
Code Sample
'openid-connect' => [
// it is expected that the user already exists in ownCloud
'auto-provision' => ['enabled' => false],
'provider-url' => 'https://idp.example.net',
'client-id' => 'fc9b5c78-ec73-47bf-befc-59d4fe780f6f',
'client-secret' => 'e3e5b04a-3c3c-4f4d-b16c-2a6e9fdd3cd1',
'loginButtonName' => 'OpenId Connect'
],
Setup auto provisioning mode
Code Sample
'openid-connect' => [
// explicit enable the auto provisioning mode,
// if not exists, the user will be created in ownCloud
'auto-provision' => [
'enabled' => true,
// documentation about standard claims:
// https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
// only relevant in userid mode, defines the claim which holds the email of the user
'email-claim' => 'email',
// defines the claim which holds the display name of the user
'display-name-claim' => 'given_name',
// defines the claim which holds the picture of the user - must be a URL
'picture-claim' => 'picture',
// defines a list of groups to which the newly created user will be added automatically
'groups' => ['admin', 'guests', 'employees'],
// sets a claim which is defined at the IDP.
// the IDP will return a single value or an array like:
// "allowed_applications": ["erp", "owncloud"],
'provisioning-claim' => 'allowed_applications',
// defines the matching case for the provisioning. the attribute can only be a
// single value in case no match is found against the IDP response,
// no provisioning will be made, "User not found" will be returned
'provisioning-attribute' => 'owncloud',
// auto-update user account info with current information provided by the
// OpenID Connect provider account attributes, that will be updated,
// can be specified in `attributes` config option
'update' => ['enabled' => true],
// enable the user info auto-update mode
],
// `mode` and `search-attribute` will be used to create a unique user in ownCloud
'mode' => 'email',
'search-attribute' => 'email',
],
Manual setup
Code Sample
'openid-connect' => [
// it is expected that the user already exists in ownCloud
'auto-provision' => ['enabled' => false],
'autoRedirectOnLoginPage' => false,
'client-id' => 'fc9b5c78-ec73-47bf-befc-59d4fe780f6f',
'client-secret' => 'e3e5b04a-3c3c-4f4d-b16c-2a6e9fdd3cd1',
'loginButtonName' => 'OpenId Connect',
'mode' => 'userid',
'search-attribute' => 'sub',
// only required if the OpenID Connect Provider does not support service discovery
// replace the dots with your values
'provider-params' => [
'authorization_endpoint' => '...',
'end_session_endpoint' => '...',
'jwks_uri' => '...',
'registration_endpoint' => '...',
'token_endpoint' => '',
'token_endpoint_auth_methods_supported' => '...',
'userinfo_endpoint' => '...'
],
'provider-url' => '...',
],
Test setup
Code Sample
'openid-connect' => [
// it is expected that the user already exists in ownCloud
'auto-provision' => ['enabled' => false],
'provider-url' => 'http://localhost:3000',
'client-id' => 'ownCloud',
'client-secret' => 'ownCloud',
'loginButtonName' => 'node-oidc-provider',
'mode' => 'userid',
'search-attribute' => 'sub',
// do not verify tls host or peer
'insecure' => true
],
App: S3 Primary Object Storage
Possible key: objectstore
ARRAY
App: Windows Network Drive (WND)
Note: This app is for Enterprise customers only.
Possible key: wnd.activity.registerExtension
BOOL
Possible key: wnd.activity.sendToSharees
BOOL
Possible key: wnd.connector.opts.timeout
INTEGER
Possible key: wnd.errorCodes.passwordReset
ARRAY
Possible key: wnd.fileInfo.parseAttrs.mode
STRING
Possible key: wnd.groupmembership.checkUserFirst
BOOL
Possible key: wnd.in_memory_notifier.enable
BOOL
Possible key: wnd.kerberos.servers
ARRAY
Possible key: wnd.listen_events.smb_acl
BOOL
Possible key: wnd.listen.reconnectAfterTime
INTEGER
Possible key: wnd.logging.enable
BOOL
Possible key: wnd.permissionmanager.cache.size
INTEGER
Possible key: wnd2.cachewrapper.normalize
BOOL
Possible key: wnd2.cachewrapper.ttl
INTEGER
Note With WND 2.1.0, key wnd.storage.testForHiddenMount
is obsolete and has been removed completely.
Enable to Push WND Events to the Activity App
Register WND as extension into the Activity app in order to send information about what
the wnd:process-queue
command is doing. The activity sent will be based on what
the wnd:process-queue
detects, and the activity will be sent to each affected user. There
won’t be any activity being sent outside of the wnd:process-queue
command.
wnd:listen
+ wnd:process-queue
+ activity app
are required for this to work properly. See wnd.activity.sendToSharees
below for information on how to send activities for shared resources. Please consider
that this can have a performance impact when changes are sent to many users.
Enable to Send WND Activity Notifications to Sharees
The wnd:process-queue
command will also send activity notifications to the sharees
if a WND file or folder is shared (or accessible via a share). It’s REQUIRED that the
wnd.activity.registerExtension
flag is set to true (see above), otherwise this flag will
be ignored. This flag depends on the wnd.activity.registerExtension
and has the same restrictions.
The Timeout (in ms) for All the Operations Against the Backend
The same timeout will be applied for all the connections.
Increase it if requests to the server sometimes time out. This can happen when SMB3 encryption is selected and smbclient is overwhelming the server with requests.
Reset the Password When Receiving Any of the Following Error Codes.
By default, we will reset the password with error code 13, which means access denied. Depending on circumstances, you might want to add the error code 1, which means an operation not permitted (although there could be cases where this "operation not permitted" might not be caused by a wrong password).
Some examples:
-
'wnd.errorCodes.passwordReset' ⇒ [13],
-
'wnd.errorCodes.passwordReset' ⇒ [13, 1],
The password reset feature can be disabled by providing an empty list
-
'wnd.errorCodes.passwordReset' ⇒ [],
Note that disabling the password reset feature can lead to an account lockout if such feature is enabled in the target windows / samba machine.
The Way File Attributes for Folders and Files will be Handled
There are 3 possible values: none
, stat
and getxattr
:
-
stat
. This is the default if the option is missing or has an invalid value. This means that the file attributes will be evaluated only for files, NOT for folders. Folders will be shown even if the "hidden" file attribute is set. -
none
. This means that the file attributes won’t be evaluated in any case. Both hidden files and folders will be shown, and you can write on read-only files (the action is available in ownCloud, but it will fail in the SMB server). -
getxattr
. This means that file attributes will always be evaluated. However, due to problems in recent libsmbclient versions (4.11+, it might be earlier) it will cause malfunctions in ownCloud; permissions are wrongly evaluated. So far, this mode works with libsmbclient 4.7 but not with 4.11+ (not tested with any version in between).
Note that the ACLs (if active) will be evaluated and applied on top of this mechanism.
Make the Group Membership Component Assume that the ACL Contains a User
The WND app doesn’t know about the users or groups associated with ACLs. This means that an ACL containing "admin" might refer to a user called "admin" or a group called "admin". By default, the group membership component considers the ACLs to target groups, and as such, it will try to get the information for such a group. This works fine if the majority of the ACLs target groups. If the majority of the ACLs contain users, this might be problematic. The cost of getting information on a group is usually higher than getting information on a user. This option makes the group membership component assume the ACL contains a user and checks whether there is a user in ownCloud with such a name first. If the name doesn’t refer to a user, it will get the group information. Note that this will have performance implications if the group membership component can’t discard users in a large number of cases. It is recommended to enable this option only if there are a high number of ACLs targeting users.
Enable or Disable the WND In-Memory Notifier for Password Changes
Having this feature enabled implies that whenever a WND process detects a wrong password in the storage - maybe the password has changed in the backend - all WND storages that are in-memory will be notified in order to reset their passwords if applicable and not to requery again.
The intention is to prevent a potential password lockout for the user in the backend. As with PHP lower than 7.4, this feature can take a lot of memory resources. This is because WND keeps the storage access and its caches in-memory. With PHP 7.4 or above, the memory usage has been reduced significantly. Alternatively, you can disable this feature completely.
A Map of Servers With the Required Kerberos Data
A map of servers with the required data to get the Kerberos credentials in order to access them.
Each key of the map must be unique and identifies a server. This ID will be used in the web UI to configure the mount points to use the Kerberos authentication. You can use any ID (choose one meaningful and easy to remember).
The data contained in each key is as follows:
-
ockeytab
(required): The location of the keytab file that ownCloud will use to access to the mounts using that server ID. The keytab must be for a service account with special privileges, in particular, it must be able to impersonate the users. It is highly recommended that the password for this service account doesn’t expire, otherwise you will have to replace the file manually before the expiration. See the Kerberos documentation for details. -
ocservice
(required): The name of the service of the account. This matches the SPN of the Windows / Samba account. It usually is in the form "HTTP/<hostname>", but it might be different. See the Kerberos documentation for details. -
usermapping
(optional): The ownCloud-to-windows user mapping to be used. See below for available options. If no user mapping is provided, theNoop
mapping will be used. The mapping data contains the type of mapping and the parameters, if any. -
ccachettl
(optional): The time (in seconds) that the credential cache will be considered as valid from the ownCloud’s side. This TTL MUST be lower than the actual TTL. Once the TTL is over, new credentials will be requested automatically. The default TTL is 9 hours, which is less than the 10 hours set by Windows by default.
Available mapping types:
-
Noop
: Do not perform any mapping. The ownCloud user ID will be returned without changes, so it’s expected that the ownCloud user ID matches the Windows / Samba user ID. -
RemoveDomain
: Remove the domain (if any) from the ownCloud user ID. This means that "user001@my.dom.com" will map to "user001". Note that it’s assumed that all users belong to the same domain, otherwise "user001@my.dom.com" will be mapped to the same windows user as "user001@not.mine.eu". -
EALdapAttr
: Use ownCloud’s user extended attributes to map the ownCloud user to the target LDAP attribute. The mapping has 2 parameters:-
attr
: in order to select the LDAP attribute you want to use. Note that it’s required that the user_ldap app exposes the chosen attribute which requires user_ldap 0.19.0+. -
nomap
(optional): a list of uids not registered in ownCloud that won’t be mapped and be returned without any change.
-
-
The following scenarios will cause errors:
-
If ownCloud can’t map the user and he isn’t in the
nomap
list. -
If the user is registered in ownCloud and is in the
nomap
list. -
If it isn’t a LDAP user.
-
Code Sample
'wnd.kerberos.servers' => [
'server_ID1' => [
'ockeytab' => '<keytab-file-location>/<user-name>.keytab',
'ocservice' => 'HTTP/<hostname_or_FQDN>',
'usermapping' => ['type' => 'Noop'],
'ccachettl' => 60 * 60 * 9,
],
'server_ID2' => [
'ockeytab' => '<keytab-file-location>/<user-name>.keytab',
'ocservice' => 'HTTP/<hostname_or_FQDN>',
'usermapping' => ['type' => 'RemoveDomain'],
'ccachettl' => 60 * 60 * 9,
],
'server_ID3' => [
'ockeytab' => '<keytab-file-location>/<user-name>.keytab',
'ocservice' => 'HTTP/<hostname_or_FQDN>',
'usermapping' => [
'type' => 'EALdapAttr',
'params' => [
'attr' => 'userPrincipalName',
'nomap' => ['ocService@example.prv', 'secondaryAccount@company.com'],
]
],
'cachettl' => 3600,
],
],
Listen to the Events Triggered by the smb_acl App
The current use is to update the WND storages (with "login credentials, saved in DB" authentication) when an ACL changes via the smb_acl app
Mandatory Listener Reconnect to the Database
The listener will reconnect to the DB after given seconds. This will prevent the listener to crash if the connection to the DB is closed after being idle for a long time.
Maximum Number of Items for the Cache Used by the WND Permission Managers
A higher number implies that more items are allowed, increasing the memory usage.
Real memory usage per item varies because it depends on the path being cached. Note that this is an in-memory cache used per request. Multiple mounts using the same permission manager will share the same cache, limiting the maximum memory that will be used.
Manage UTF-8 Glyph Normalization on macOS
A glyph is a character like ñ
as used in the spanish word señorita
which can be composed by two different byte sequences.
With UTF-8, glyphs can have two valid representations of these sequences in filesystems.
Normalization makes it possible to determine whether any two Unicode strings are equivalent.
The most used normalization forms are NFC and NFD. By default, ownCloud usually normalizes names to NFC.
With macOS and HFS+ as filesystem, NFD is required.
When using WND collaborative mount points connecting to macOS with HFS+, or any other filesystem using NFD, probing both forms can be enforced by setting the config variable wnd2.cachewrapper.normalize
to true.
This is necessary because if a file accessed via collaborative WND contains NFD characters, WND will not find the file and the WND app will assume user doesn’t have access to it.
As a result, the file will not be shown.
As a mandatory prerequisite, the mount point setting Compatibility with Mac NFD encoding
must be checked.
TTL for the WND2 Caching Wrapper
Time to Live (TTL) in seconds to be used to cache information for the WND2 (collaborative) cache wrapper implementation. The value will be used by all WND2 storages. Although the cache isn’t exactly per user but per storage id, consider the cache to be per user, because it will be like that for common use cases. Data will remain in the cache and won’t be removed by ownCloud. Aim for a low TTL value in order to not fill the memcache completely. In order to properly disable caching, use -1 or any negative value. 0 (zero) isn’t considered a valid TTL value and will also disable caching.