Policy enforcement

The following procedure gives an example of how to request and enforce policy decisions from PingOne Advanced Identity Cloud.

Enforce a simple policy

Before you start, set up and test the example in Cross-domain single sign-on.

Set up PingOne Advanced Identity Cloud:
1. In the Advanced Identity Cloud admin UI, select open_in_new Native Consoles > Access Management. The AM admin UI is displayed.
2. Select Authorization > Policy Sets > New Policy Set, and add a policy set with the following values:
  - Id : PEP-CDSSO
  - Resource Types : URL
3. In the new policy set, add a policy with the following values:
  - Name : CDSSO
  - Resource Type : URL
  - Resource pattern : *://*:*/*
  - Resource value : http://app.example.com:8081/home/cdsso
    
    This policy protects the home page of the sample application.
4. On the Actions tab, add an action to allow HTTP GET.
5. On the Subjects tab, remove any default subject conditions, add a subject condition for all Authenticated Users.

Set up PingGateway:

Replace cdsso-idc.json with the following route, and correct the value for the property amInstanceUrl:

Linux
Windows

$HOME/.openig/config/routes/pep-cdsso-idc.json

%appdata%\OpenIG\config\routes\pep-cdsso-idc.json

{
  "name": "pep-cdsso-idc",
  "baseURI": "http://app.example.com:8081",
  "condition": "${find(request.uri.path, '^/home/cdsso')}",
  "properties": {
    "amInstanceUrl": "https://myTenant.forgeblocks.com/am"
  },
  "heap": [
    {
      "name": "SystemAndEnvSecretStore-1",
      "type": "SystemAndEnvSecretStore"
    },
    {
      "name": "AmService-1",
      "type": "AmService",
      "config": {
        "url": "&{amInstanceUrl}",
        "realm": "/alpha",
        "agent": {
          "username": "ig_agent",
          "passwordSecretId": "agent.secret.id"
        },
        "secretsProvider": "SystemAndEnvSecretStore-1",
        "sessionCache": {
          "enabled": false
        }
      }
    }
  ],
  "handler": {
    "type": "Chain",
    "config": {
      "filters": [
        {
          "name": "CrossDomainSingleSignOnFilter-1",
          "type": "CrossDomainSingleSignOnFilter",
          "config": {
            "redirectEndpoint": "/home/cdsso/redirect",
            "authCookie": {
              "path": "/home",
              "name": "ig-token-cookie"
            },
            "amService": "AmService-1"
          }
        },
        {
          "name": "PolicyEnforcementFilter-1",
          "type": "PolicyEnforcementFilter",
          "config": {
            "application": "PEP-CDSSO",
            "ssoTokenSubject": "${contexts.cdsso.token}",
            "amService": "AmService-1"
          }
        }
      ],
      "handler": "ReverseProxyHandler"
    }
  }
}

Note the following feature of the route compared to cdsso-idc.json:

The CrossDomainSingleSignOnFilter is followed by a PolicyEnforcementFilter to enforce the policy PEP-CDSSO.

Test the setup:
1. Go to https://ig.ext.com:8443/home/cdsso.
  
  If you have warnings that the site is not secure respond to the warnings to access the site.
  
  PingGateway redirects you to PingOne Advanced Identity Cloud for authentication.
2. Log in to PingOne Advanced Identity Cloud as user demo, password Ch4ng3!t.
  
  PingOne Advanced Identity Cloud redirects you back to the request URL, and PingGateway requests a policy decision. PingOne Advanced Identity Cloud returns a policy decision that grants access to the sample application.

Step up authorization for a transaction

Before you start, set up and test the example in Enforce a simple policy.

In the Advanced Identity Cloud admin UI, select code Scripts > Auth Scripts > New Script > Journey Decision Node > Next, and add a default Journey Decision Node Script called TxTestPassword:

/*
  - Data made available by nodes that have already executed are available in the sharedState variable.
  - The script should set outcome to either "true" or "false".
 */

var givenPassword = nodeState.get("password").asString()

if (givenPassword.equals("7890")) {
  outcome = "true"
} else {
  outcome = "false"
}

Configure a journey:
1. Click account_tree Journeys and add a journey with the following configuration:
  - Name: Tx01_Tree
  - Identity Object: Alpha realm users
    
    The journey canvas is displayed.
2. In Nodes > Basic Authentication, drag a Password Collector node onto the canvas.
3. In Nodes > Utilities, drag a Scripted decision node onto the canvas.
4. Configure the scripted decision node as follows:
  - Script: select TxTestPassword
  - Outcomes: enter true and false
5. Connect the nodes as shown:
  
  For information about configuring trees, refer to PingOne Advanced Identity Cloud Docs
Edit the authorization policy:
1. In the Advanced Identity Cloud admin UI, select open_in_new Native Consoles > Access Management. The AM admin UI is displayed.
2. Select Authorization > Policy Sets > PEP-CDSSO, and add the following environment condition to the CDSSO policy:
  - All of
  - Type: Transaction
  - Script name: Authenticate to tree
  - Strategy Specifier: Tx01_Tree
Test the setup:
1. In a browser, go to https://ig.ext.com:8443/home/cdsso.
  
  If you have not previously authenticated to PingOne Advanced Identity Cloud, the CrossDomainSingleSignOnFilter redirects the request to PingOne Advanced Identity Cloud for authentication.
2. Log in to PingOne Advanced Identity Cloud as user demo, password Ch4ng3!t.
3. Enter the password 7890 required by the script TxTestPassword.
  
  PingOne Advanced Identity Cloud redirects you back to the request URL, and PingGateway requests a policy decision. PingOne Advanced Identity Cloud returns a policy decision based on the authentication journey.