SAML Single Sign-On into Joomla using IdentityServer4 | IdentityServer4 SSO | Login using IdentityServer4

IdentityServer4 SAML Single sign-on (SSO) is an authentication method that enables IdentityServer4 users to access multiple Joomla applications with one login and one set of credentials.

Our plugin is compatible with Joomla 4 as well as with all the SAML 2.0 compliant Identity Providers. Here we will go through a step-by-step guide to configure SAML SSO login between Joomla site and IdentityServer4 by considering IdentityServer4 as IdP (Identity Provider & Joomla as SP (Service Provider).

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If you want support in configuring the plugin, or to integrate IdentityServer4 with Joomla, click on Free Configuration Setup button.

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Steps to Integrate IdentityServer4 Single Sign-On (SSO) with Joomla SAML SP

1. Configure IdentityServer4 as IdP

Note: To add SAML IDP functionality you would require modifications in the Startup.cs file.

            
services.AddIdentityServer()

                // the rest of registrations (clients, resources, users, etc)

                  .AddSigningCredential(new X509Certificate2(/*your cert*/))

                  .AddSamlPlugin(options => {
                        options.Licensee = "/*your license key org name*/";

                        options.LicenseKey = "/*your license key*/";

                })

                .AddInMemoryServiceProviders(new List());

        
app.UseIdentityServer()

              .UseIdentityServerSamlPlugin();
    

Configure IdentityServer4 as Service Provider

• In the Config.cs file create a Client entry.

            
new Client {

                   ClientId = "http://localhost:5001/saml",

                   ClientName = "RSK SAML2P Test Client",

                   ProtocolType = IdentityServerConstants.ProtocolTypes.Saml2p,

                   AllowedScopes = { "openid", "profile" }

           }
        

ClientId	Provide clientId from Service Provider Metadata tab
ClientName	Provide Service Provider name
ProtocolType	IdentityServerConstants.ProtocolTypes.Saml2p
AllowedScopes	openid, profile

• In the Config.cs configure SAML Specifics using Service Provider object.

            
new ServiceProvider {

                   EntityId = "http://localhost:5001/saml",

                   SigningCertificates = {new X509Certificate2("TestClient.cer")},/*Enter the certificate name*/

                   AssertionConsumerServices = { new Service(SamlConstants.BindingTypes.HttpPost, "http://localhost:5001/signin-saml") }

           };

• Note: The Client ID and Entity ID must be Equal.
• You would need the following information from the Service Provider Metadata.

Entity-Id	Provide Entity-Id from Service Provider Metadata tab
Signing Certificates	Download the Certificate from Service Provider Metadata tab of the plugin and enter Certificate name
Assertion Consumer Service URL	Provide the required Binding type followed by the ACS URL: Http Post method: SamlConstants.BindingTypes.HttpPost Http Redirect method: SamlConstants.BindingTypes.HttpRedirect ACS URL: Provide ACS URL from Service Provider Metadata Tab

• To configure your Service Provider retrieve IDP Metadata by visiting /saml/metadata URL.
• You will get the endpoints required for the Service Provider configuration.

You have successfully configured IdentityServer4 as SAML IDP ( Identity Provider) for achieving IdentityServer4 SSO login into your joomla Site.

2. Configure Joomla as Service Provider

• In Joomla SAML plugin, go to Service Provider Setup Tab. There are three ways to configure the plugin:

   By Metadata URL :

  • Click on Upload IDP Metadata.
  
  • Enter Metadata URL (Copy from IDP app) and click on Fetch Metadata.
  

   By Uploading Metadata File:

  • Click on Upload IDP Metadata.
  • Choose metadata file and click on Upload.
  

   Manual Configuration :

  • Copy SAML Entity ID, SAML Single-Sign-On Endpoint URL and x.509 certificate from Federation Metadata document and paste it in IdP Entity ID or Issuer, Single Sign-on Service URL, x.509 Certificate fields respectively in the plugin.
    

  IdP Entity ID or Issuer	SAML Entity ID in the Federation Metadata document
  Single Sign-On Service URL	SAML Single-Sign-On Endpoint URL in the Federation Metadata document
  X.509 Certificate	x.509 Certificate in the Federation Metadata document

   Add a button on your site login page with the following URL:

  

3. Attribute Mapping (It is Optional to fill this). This is Premium feature.

• Attributes are user details that are stored in your Identity Provider.
• Attribute Mapping helps you to get user attributes from your Identity Provider (IdP) and map them to Joomla user attributes like firstname, lastname etc.
• While auto registering the users in your Joomla site these attributes will automatically get mapped to your Joomla user details.
• In Joomla SAML plugin, go to Attribute Mapping tab and fill in all the fields.
  

  Username:	Name of the username attribute from IdP (Keep NameID by default)
  Email:	Name of the email attribute from IdP (Keep NameID by default)
  Group/Role:	Name of the Role attribute from Identity Provider(IdP)

• You can check the Test Configuration Results under Service Provider Setup tab to get a better idea of which values to map here.

4. Group Mapping (It is Optional to fill this). This is Premium feature.

• Role mapping helps you to assign specific roles to users of a certain group in your Identity Provider (IdP).
• While auto registering, the users are assigned roles based on the group they are mapped to.

5. Redirection & SSO Links

• Go to Login Settings tab. There are multiple features availabe in this tab like Auto redirect the user to Identity Provider and Enable Backed Login for Super Users. To use these features, click on the respective checkboxes.


You have successfully completed your miniOrange SAML 2.0 SP configurations. Still, if you are facing any difficulty please mail us on joomlasupport@xecurify.com .

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Additional Resources.

• What is Single Sign-On (SSO)
• How to configure SSO with Okta
• How to configure SSO with Google Apps
• Frequently Asked Questions (FAQs)

Miniorange Joomla SAML Single sign-on(web SSO) supports multiple known IDPs like WSO2, Azure AD, Salesforce,
Shibboleth, Onelogin, Okta, SimpleSamlPhp, Google apps, Bitium, OpenAM, miniorange IDP, Centrify and many more.

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If you don't find what you are looking for, please contact us at joomlasupport@xecurify.com or call us at +1 978 658 9387.