Configure Auth0 Single Sign-On (SSO) with Joomla OAuth Client Plugin

Overview

Single Sign-On (SSO) with Auth0 in Joomla uses OAuth Authorization to provide users secure access to the Joomla site. With our Joomla OAuth Single Sign-On (SSO) plugin, Auth0 acts as the OAuth provider, ensuring secure login for Joomla websites.

The integration of Joomla and Auth0 simplifies and secures the login process using OAuth protocol. This solution allows users to access their Joomla sites with Single Sign-On (SSO) using their Auth0 credentials, completely removing the need to store, remember, and reset multiple passwords.

In addition to offering OAuth Single Sign-On (SSO) using Auth0 credentials, the plugin also provides advanced SSO features like user profile attribute mapping, role mapping, and Azure multi-tenant login and providing site access based on organization email domains. For further insights into the array of features we offer within the Joomla OAuth & OpenID Connect Client plugin, kindly visit our page here. You can follow the below steps to setup Auth0 OAuth SSO with Joomla.

Configuration Steps

In this configuration, Auth0 functions as the OAuth server, while Joomla allows users to log in with their Auth0 credentials by utilizing the Joomla OAuth Client Plugin.

Step 1: Install Joomla OAuth Client Plugin

Login into your Joomla site’s Administrator console.
From left toggle menu, click on System, then under Install section click on Extensions.
Now click on Or Browse for file button to locate and install the plugin file downloaded earlier.
Installation of plugin is successful. Now click on Get Started!
Under Configure OAuth -> Pre-Configured Apps tab, select your OAuth Provider. You can also search for custom OAuth or custom OpenID application in the search bar, and configure your own custom provider.

After selecting your OAuth provider, you will be redirected to the Step 1 [Redirect URL] tab. Now copy the Callback/Redirect URL which we will use to configure Microsoft Entra ID as OAuth Server, then click on the Save & Next button.

Step 2: Configure Auth0 as OAuth Server

Go to your Auth0 Dashboard.
Go to Applications tab in the left panel and then click on Applications.

Now click on the CREATE APPLICATION button.

Select Regular Web Applications and click on Create button.

Now go to Settings tab.

Scroll down to Applications URI's section and enter the callback url.

Then scroll down and then click on Save Changes button.

Step 3: Configure Client ID & Secret

Copy the Client ID and Client Secret from basic information in settings tab.

Now go to Users tab in the user management from the left panel.

Click on Create User to create a new user.

Enter all the required details and click on Create.

Go back to your Joomla Dashboard. Then go to Step 2 [Client ID & Secret].
Paste the Client ID, Client Secret and Domain. Also Set Client Credentials In header then click on Save Settings. Once Settings are saved then click on Save Configuration.

Scope & Endpoints are given below, which are required for configuring Joomla as OAuth Client plugin to configure Auth0 as a custom OAuth or OIDC provider.

Scope	openid email
Authorize Endpoint	https:// <your Auth0 domain> /authorize
Access Token Endpoint	https:// <your Auth0 domain> /oauth/token
Get User Info Endpoint	https:// <your Auth0 domain> /userinfo

Step 4: Configure Attribute Mapping

User Attribute Mapping is mandatory for enabling users to successfully login into Joomla. We will be setting up user profile attributes for Joomla using below settings.
Go to Step 3 [Attribute Mapping] tab and click on Test Configuration button.

You will be able to see the attributes in the Test Configuration output as follows.

Now go to the Step 3 [Attribute Mapping] tab and Select the attribute name for Email and Username from dropdown. Then click on Finish Configuration button.

Step 5: Setup Login/SSO URL

Now go to Step 4 [SSO URL] tab, here copy the Login/SSO URL and add it to your Site by following the given steps.

Now logout and go to your Joomla site's pages where you have added this link. You will see a login link where you placed that button. Click on this button to perform SSO.

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