Multiple OIDC providers

This page shows OIDC with two identity providers.

Client registrations for an AM identity provider and PingOne Advanced Identity Cloud identity provider are declared in the heap. The Nascar page helps the user to choose an identity provider.

Set up AM as the first identity provider, as described in AM as OIDC provider.
Set up PingOne Advanced Identity Cloud as a second identity provider, as described in PingOne Advanced Identity Cloud as an OpenID Connect provider.

Add the following route to PingGateway, replacing the value for the property amInstanceUrl:

Linux
Windows

$HOME/.openig/config/routes/07-openid-nascar.json

%appdata%\OpenIG\config\routes\07-openid-nascar.json

{
  "heap": [
    {
      "name": "SystemAndEnvSecretStore-1",
      "type": "SystemAndEnvSecretStore"
    },
    {
      "name": "AuthenticatedRegistrationHandler-1",
      "type": "Chain",
      "config": {
        "filters": [
          {
            "name": "ClientSecretBasicAuthenticationFilter-1",
            "type": "ClientSecretBasicAuthenticationFilter",
            "config": {
              "clientId": "oidc_client",
              "clientSecretId": "oidc.secret.id",
              "secretsProvider": "SystemAndEnvSecretStore-1"
            }
          }
        ],
        "handler": "ForgeRockClientHandler"
      }
    },
    {
      "name": "openam",
      "type": "ClientRegistration",
      "config": {
        "clientId": "oidc_client",
        "issuer": {
          "name": "am_issuer",
          "type": "Issuer",
          "config": {
            "wellKnownEndpoint": "http://am.example.com:8088/openam/oauth2/.well-known/openid-configuration"
          }
        },
        "scopes": [
          "openid",
          "profile",
          "email"
        ],
        "authenticatedRegistrationHandler": "AuthenticatedRegistrationHandler-1"
      }
    },
    {
      "name": "idcloud",
      "type": "ClientRegistration",
      "config": {
        "clientId": "oidc_client",
        "issuer": {
          "name": "idc_issuer",
          "type": "Issuer",
          "config": {
            "wellKnownEndpoint": "&{amInstanceUrl}/oauth2/realms/alpha/.well-known/openid-configuration"
          }
        },
        "scopes": [
          "openid",
          "profile",
          "email"
        ],
        "authenticatedRegistrationHandler": "AuthenticatedRegistrationHandler-1"
      }
    },
    {
      "name": "NascarPage",
      "type": "StaticResponseHandler",
      "config": {
        "status": 200,
        "headers": {
          "Content-Type": [ "text/html; charset=UTF-8" ]
        },
        "entity": [
          "<html>",
          "  <body>",
          "    <p><a href='/home/id_token/login?registration=oidc_client&issuer=am_issuer&goto=${urlEncodeQueryParameterNameOrValue('https://ig.example.com:8443/home/id_token')}'>Access Management login</a></p>",
          "    <p><a href='/home/id_token/login?registration=oidc_client&issuer=idc_issuer&goto=${urlEncodeQueryParameterNameOrValue('https://ig.example.com:8443/home/id_token')}'>Identity Cloud login</a></p>",
          "  </body>",
          "</html>"
        ]
      }
    }
  ],
  "name": "07-openid-nascar",
  "baseURI": "http://app.example.com:8081",
  "condition": "${find(request.uri.path, '^/home/id_token')}",
  "properties": {
    "amInstanceUrl": "https://myTenant.forgeblocks.com/am"
  },
  "handler": {
    "type": "Chain",
    "config": {
      "filters": [
        {
          "type": "AuthorizationCodeOAuth2ClientFilter",
          "config": {
            "clientEndpoint": "/home/id_token",
            "failureHandler": {
              "type": "StaticResponseHandler",
              "config": {
                "comment": "Trivial failure handler for debugging only",
                "status": 500,
                "headers": {
                  "Content-Type": [ "text/plain; charset=UTF-8" ]
                },
                "entity": "${contexts.oauth2Failure.error}: ${contexts.oauth2Failure.description}"
              }
            },
            "loginHandler": "NascarPage",
            "registrations": [ "openam", "idcloud" ],
            "requireHttps": false,
            "cacheExpiration": "disabled"
          }
        }
      ],
      "handler": "ReverseProxyHandler"
    }
  }
}

Consider the differences with 07-openid.json:

The heap objects openam and idcloud define client registrations.
The StaticResponseHandler provides links to the client registrations.
The AuthorizationCodeOAuth2ClientFilter uses a loginHandler to allow users to choose a client registration and therefore an identity provider.

Test the setup:
1. In your browser’s privacy or incognito mode, go to https://ig.example.com:8443/home/id_token.
  
  The Nascar page offers the choice of identity provider.
2. Using the following credentials, select a provider, log in, and allow the application to access user information:
  - AM: user demo, password Ch4ng31t.
  - PingOne Advanced Identity Cloud: user demo, password Ch4ng3!t
    
    The home page of the sample application is displayed.

PingGateway 2024.9

Multiple OIDC providers