Importing User Groups’ Memberships from an External IdP through SAML

warning

This feature is currently behind a dev feature flag. You must not use this in production. Use it only for testing purposes.

You can import users’ user group membership from external identity providers (IdPs). This requires only configuring the necessary fields when registering the IdP. The XML structure varies by IdP, so your first step is to find the multi-valued attributes for user groups from your IdP.

For example, uses Okta’s structure for user groups looks like this:

<saml2:Attribute Name="userGroup" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">
      <saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema"
                           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                           xsi:type="xs:string"
                           >Okta-UserGroup2
      </saml2:AttributeValue>
      <saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema"
                           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                           xsi:type="xs:string"
                           >Okta-UserGroup1
      </saml2:AttributeValue>
</saml2:Attribute>

Below is the configuration using this structure for importing user groups from an external IdP.

Creating a SAML 2.0 App on Okta

1. Log into the Okta admin dashboard.

2. Navigate to Applications → Applications, and click Create App Integration.

3. Select SAML 2.0 and click Next.

4. Enter the name as liferaysaml and click Next.

5. Enter the following values under General, in the SAML Settings section:

   Single sign-on URL: http://[IP_ADDRESS]:[PORT_NUMBER]/c/portal/saml/acs (If you’re running a local Liferay instance, this would be http://localhost:8080/c/portal/saml/acs)

   Audience URI (SP Entity ID): okta-saml

   Name ID Format: EmailAddress

   Application username: Email

   

   This field denotes the source of the username users use to log in to Okta, which then logs them into Liferay when using SAML.

6. Add the following values under Attribute Statements:

   firstName (Unspecified): user.firstName

   lastName (Unspecified): user.lastName

   emailAddress (Unspecified): user.email

   screenName (Unspecified): user.firstName

   The values on the left are names of the SAML attributes. They map to the corresponding values on the right which specify different user fields in Okta.

7. Add the following values under Group Attribute Statements:

   userGroup (Unspecified): Starts with Okta (This assumes that your user groups on Okta start with the prefix Okta. For example: Okta-UserGroup-1)

   

   note

   The instructions above assume that you already have a set of users on Okta belonging to different groups (starting with the prefix Okta). Okta recommends using either keywords or regex to define group memberships. These groups are matched by their name with user groups in Liferay.

   It is mandatory to specify a filter condition or regexp for group attribute statements. The SAML attribute is sent empty if there is no filter condition or regexp.

8. Click Next.

9. The rest of the form is Okta-specific and has no effect on the configuration. Select whatever suits you best and click Finish.

Saving the Metadata

The last step before moving to your Liferay instance is to save the SAML metadata.

1. Navigate to Applications → Applications, and select liferaysaml.

2. You can view the Assignments tab by default. Click on Assign and select Assign to People. Search for users that can log into Liferay using this SAML app and click Assign. You can also select by groups here.

   

3. Click Done.

4. Select the Sign On tab.

5. On the right side, click View SAML setup instructions.

6. On the new screen, scroll down to the Optional section. Copy the entire block of XML code and paste it in a new file named oktasamlmetadata.xml.

Liferay Configuration

Now, you must set Okta as a service provider in Liferay’s SAML Admin.

1. Open the Global Menu () and navigate to Control Panel → SAML Admin.

2. In the General tab, enter okta-saml as the Entity ID.

3. Click Create Certificate.

4. In the new window, enter okta-saml as the Common Name and learn as the Key Password.

5. Click Save.

6. Under Identity Provider Connections, click Add Identity Provider.

7. Enter Okta as the name.

8. Copy the entity ID from the oktasamlmetadata.xml file and paste it here.

9. Check the Enabled checkbox.

10. Under Metadata, click Upload Metadata XML and select the file created earlier.

11. Set Email Address as the Name Identifier Format.

12. Under Attribute Mapping, create three new basic user fields to get a total of four. Enter the information as shown:

    User Fields	SAML Attribute
    emailAddress	emailAddress
    firstName	firstName
    lastName	lastName
    screenName	screenName

    

13. Under the User Memberships section, select userGroups from the drop-down and set its value as userGroup.

    

    Both the mappings above link user attributes in Liferay with SAML attributes configured on Okta. For instance, the name of the user group SAML attribute in Okta is userGroup. This is mapped to the userGroups attribute in Liferay.

14. Click Save.

Now you can go to your Liferay instance and click Sign In. This redirects you to the identity provider’s sign in page. When you log in, you are redirected back to Liferay’s home page. You can also verify the user’s user group membership by opening the Global Menu () and navigating to Control Panel → User Groups.

important

Users are assigned automatically to user groups only if they are already present. Ensure that you have user groups in Liferay that correspond to the groups on Okta. If Okta sends the group information and the corresponding user group doesn’t exist in Liferay, the attribute is ignored. See Creating and Managing User Groups to learn how to create and manage user groups.

If you assign users to other user groups in Liferay after signing in, these memberships are overwritten the next time you log in through the IdP.