Okta OAuth & OpenID connect Single Sign-On (SSO) | Okta SSO Login

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

Step 1: Setup Okta as OAuth Provider

• First of all, go to https://www.okta.com/login and log into your Okta account.
• You will be presented with following screen. Click on Developer Console arrow and select Classic UI from the navigation bar on top.

• Go to the Okta Admin panel. Go to Applications -> Applications.

• You will get the following screen. Click on Add Application button.

• Click on create new app to create an app.

• Choose Web as platform, OpenID Connect as Sign on method and click on Create.

• You will be redirected to the app details page. Enter Application name and Login Redirect URIs. Copy Redirect / Callback URL from the plugin to Configure Login Redirect URL. Click on Save.

• You will be brought to App details page. Scroll down to Client Credentials section.

• Copy these credentials in MO OAuth Plugin configuration on corresponding fields.

Step 1.1: Add & Map Custom Attributes [Premium]

• Go to the Okta Admin panel. Go to Directory -> Profile Editor.

• Go to the Profile tab.

• Click on Add Attributes.

• Fill all the fields and Click on Save button.

• Once added, go to Mappings -> <Your App Name> to Okta User and add the Custom Attribute from the dropdown and click on Save Mappings -> Apply Updated Now.

• Go back to Mappings -> Okta User to <Your App Name>. Select Custom Attribute Name from the dropdown menu as shown in the below screenshot. Click on the Mapping arrow, select Apply Mapping on user create and update option. Click on Save Mappings -> Apply updates now.

• Once you map all those custom attributes you can get all those attributes while SSO. You can refer to the below screenshot for details.

• Okta Scope and Endpoints.

Scope:	openid email
Authorize Endpoint:	https://{yourOktaDomain}.com/oauth2/default/v1/authorize
Access Token Endpoint:	https://{yourOktaDomain}.com/oauth2/default/v1/token
Custom redirect URL after logout:[optional]	https://{yourdomain.okta}.com/login/signout?fromURI= <your url>

You have successfully configured Okta as OAuth Provider for achieving Okta login into your WordPress Site.

Step 2: Setup WordPress as OAuth Client

• Go to the Configure OAuth tab in the Plugin and search for Okta app in the applications list, and select the Okta app.

• Then, configure App Name, Client ID, Client Secret and Endpoints.
• Enter Scope value as openid email.
• Click on Save Settings to save the configuration.

You have successfully configured WordPress as OAuth Client for achieving Okta login into your WordPress Site.

Step 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 Email or Username, etc. 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.

Step 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.

Step 5: Login Settings / Sign In Settings

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

1. 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.


2. 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 Okta SSO login button there. You can test the Okta Single Sign-On (SSO) now.

In this Guide, you have successfully configured Okta Single Sign-On (SSO) by configuring Okta as OAuth Provider and WordPress as OAuth Client using our WP OAuth Single Sign-On ( OAuth / OpenID Connect Client ) plugin.This solution ensures that you are ready to roll out secure access to your WordPress site using Okta login credentials within minutes.

Additional Resources

• Okta's developer documentation for OAuth 2.0 & OpenID Connect
• okta and oauth better together
• Frequently Asked Questions (FAQs)