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

Overview

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

The integration of Joomla and Google ClassRoom 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 Google ClassRoom credentials, completely removing the need to store, remember, and reset multiple passwords.

In addition to offering OAuth Single Sign-On (SSO) using Google ClassRoom 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 Google ClassRoom OAuth SSO with Joomla.

Configuration Steps

In this configuration, Google ClassRoom functions as the OAuth server, while Joomla allows users to log in with their Google ClassRoom 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 Google ClassRoom as OAuth Server

Go to https://console.developers.google.com/ and sign up/login.
Click on Select Project to create a new Google Apps Project,you will see a popup with the list of all your projects.

You can click on the NEW PROJECT button to create new project.

Enter your Project Name under the Project Name field and click on Create.

From left menu click on API & Services.

From the dashborad of API and Services click on + ENABLE API AND SERVICE.

From API Library search Google Classroom API from the search field.

Select Google Classroom API.

Click on ENABLE button.

Under Credential Type select Google Classroom API from dropdown and select the data you be accessing as per your requirement and then click on NEXT button.

Enter your Application Information then click on SAVE AND CONTINUE button.

Under scopes click on ADD OR REMOVE SCOPES button.

Select scopes then click on Update button.

Under OAuth client ID section, Select Application type as Web Application, then fill the details of application from Configure OAuth tab from Joomla OAuth Client plugin, also paste the Callback/Redirect URL then click on Create button.

Step 3: Configure Client ID & Secret

Under Your Credentilas section you will get Client ID , and click on Download button so that you will get Client Secret. Then click on Done button.

Go to the Step 2 [Client ID & Secret] tab of the Joomla OAuth Client plugin, here paste the Client ID & Client Secret. Click on the Save Configuration button.

Google Classroom Scope & Endpoints

Scope	profile email
Authorize Endpoint:	https://accounts.google.com/o/oauth2/auth
Access Token Endpoint:	https://oauth2.googleapis.com/token
Set Client Credentials:	In Both (In Header and In Body)

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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