Configure OneLogin Single Sign-On (SSO) with WordPress OAuth

Set up Single Sign-On (SSO) on OneLogin with the WordPress OAuth & OpenID Connect Single Sign-On plugin. Implementing OneLogin OAuth SSO allows users to log into your websites and applications with a single set of credentials using the OneLogin OAuth credentials.

OneLogin OAuth SSO acts as the OAuth Provider and WordPress acts as the OAuth Client. WordPress OneLogin Authentication provides smooth login between these two, removing the need to remember usernames and passwords.

The OneLogin OAuth SSO plugin also provides advanced SSO features such as user profile attribute mapping, role mapping, and role-based access for user profiles. You can also protect your complete WordPress site behind SSO. OneLogin WordPress OAuth SSO plugin secure’s the user’s login process and improves user authentication authority. Follow the steps in the guide below to install this plugin.

Prerequisites: Download and Installation

• Log into your WordPress instance as an admin.
• Go to the WordPress Dashboard -> Plugins and click on Add New.
• Search for a WordPress OAuth Single Sign-On (SSO) plugin and click on Install Now.
• Once installed click on Activate.

Steps to configure OneLogin OAuth SSO into WordPress

1. Setup OneLogin as OAuth Provider

• First of all, go to https://app.onelogin.com/login and log into your Onelogin account.
• Click on the Administration.

• You will be presented with following screen. Hover on Applications and then click on Applications.

• Click on Add App Button.

• You will be shown a search list. Search for “OIDC” (OpenID Connect) and click on the search result as shown below.

• You will be shown a configuration screen. Fill the application name and other details as required, then click on Save.

• You will be redirected to the app details page. Go to Configuration tab and enter Redirect URI from MO OAuth/OpenID Connect Plugin and click on Save.

• Go to SSO tab. There you will find the Client ID and Client Secret fields.Copy these credentials in MO OAuth/OpenID Connect Plugin configuration on corresponding fields.



Step 1.1: Assign the users to OneLogin SSO Application:

• Hover on the Users tab and click on the Users option from the menu.

• You will be shown the users list available on your onelogin platform. Select a user you want to give access to your application.

• Now for that user, go to the Applications tab from the left menu and click on blue + icon to add the application.

• Select the application from the drop down list for which you want to allow SSO for that user and click on Continue.

• Complete the configurations and click on the Save button.

• The application will be listed in the user profile as shown in the image below and now this user can SSO into your WordPress site using his OneLogin credentials for this application.

In order to enable user authentication and authorization for end users with OneLogin OAuth SSO into WordPress with a single set of credentials, you have successfully installed the OneLogin Identity Platform as an OAuth Provider. This solution guarantees enhanced user experience and security.

2. Setup WordPress as OAuth Client

• Free
• Premium

• Go to Configure OAuth tab and click Add New Application to add a new client application into your website.

• Choose your Application from the list of OAuth / OpenID Connect Providers, here Onelogin

• After selecting the provider copy the Callback URL which needs to be configured in OAuth Provider's SSO application configuration.
• Enter the Client Credentials like Client ID & Client Secret which you will get from the OneLogin SSO application.
• Please refer the below table for configuring the scope & endpoints for OneLogin in the plugin.

Note: Once you create the Onelogin account, you'll find the Site Url and you will need to add the same in the below endpoints.




Scope:	openid
Authorize Endpoint:	https://<site-url>.onelogin.com/oidc/2/auth
Access Token Endpoint:	https://<site-url>.onelogin.com/oidc/2/token
Custom redirect URL after logout:[optional]	https://<api-domain>/api/1/users/:id/logout

• Click Next.


• Verify the configuration details and click on Finish to save the configuration.

You have successfully configured WordPress as OAuth Client for achieving user authentication with Onelogin OAuth login into your WordPress Site.

• Go to Configure OAuth tab and search your application name to add a new client application into your website, here Onelogin.

• Please refer the below table for configuring the scope & endpoints for OneLogin in the plugin. Click Next.

Note: Once you create the Onelogin account, you'll find the Site Url and you will need to add the same in the below endpoints.




Scope:	openid
Authorize Endpoint:	https://<site-url>.onelogin.com/oidc/2/auth
Access Token Endpoint:	https://<site-url>.onelogin.com/oidc/2/token
Custom redirect URL after logout:[optional]	https://<api-domain>/api/1/users/:id/logout


• Choose your Grant Type from the list of options & Click on Save Settings to save the configuration.

You have successfully configured WordPress as OAuth Client for achieving user authentication with Onelogin OAuth login into your WordPress Site.

3. User Attribute Mapping

• User Attribute Mapping is mandatory for enabling users to successfully login into WordPress. We will be setting up user profile attributes for WordPress using below settings.

Finding user attributes

• Go to Configure OAuth tab. Scroll down and click on Test Configuration.
• You will see all the values returned by your OAuth Provider to WordPress in a table. If you don't see value for First Name, Last Name, Email or Username, make the required settings in your OAuth Provider to return this information.

• Once you see all the values in Test Configuration, go to Attribute / Role Mapping tab, you will get the list of attributes in a Username dropdown.

4. Role Mapping [Premium]

• Click on “Test Configuration” and you will get the list of Attribute Names and Attribute Values that are sent by your OAuth provider.
• From the Test Configuration window, map the Attribute Names in the Attribute Mapping section of the plugin. Refer to the screenshot for more details.

• Enable Role Mapping: To enable Role Mapping, you need to map Group Name Attribute. Select the attribute name from the list of attributes which returns the roles from your provider application.
  Eg:Role


• Assign WordPress role to the Provider role: Based on your provider application, you can allocate the WordPress role to your provider roles. It can be a student, teacher, administrator or any other depending on your application. Add the provider roles under Group Attribute Value and assign the required WordPress role in front of it under WordPress Role.
  
  For example, in the below image. Teacher has been assigned the role of Administrator & Student is assigned the role of Subscriber.

• Once you save the mapping, the provider role will be assigned the WordPress administrator role after SSO.
  Example: As per the given example, Users with role ‘teacher’ will be added as Administrator in WordPress and ‘student’ will be added as Subscriber.

5. Sign In Settings

• The settings in Single Sign-On (SSO) Settings tab define the user experience for Single Sign-On (SSO). To add a Onelogin login widget on your WordPress page, you need to follow the below steps.

Sign in settings for WordPress 5.7 and before

• Go to WordPress Left Panel > Appearances > Widgets.
• Select miniOrange OAuth. Drag and drop to your favourite location and save.


Sign in settings for WordPress 5.8

• Go to WordPress Left Panel > Appearances > Widgets.
• Select miniOrange OAuth. Drag and drop to your favourite location and save.

• Open your WordPress page and you can see the Onelogin SSO login button there. You can test the Onelogin Single Sign-On (SSO) now.

Sign in settings for WordPress 5.9

• Make sure the "Show on login page" option is enabled for your application. (Refer to the below image)

• Now, go to your WordPress Login page. (Eg. https://< your-wordpress-domain >/wp-login.php)
• You will see an Onelogin SSO login button there. Once you click the login button, you will be able to test the Onelogin Single Sign-On (SSO).