OAuth 2 Scopes

In OAuth 2.0, applications are granted access to limited subsets of user data. These are called scopes (not to be confused with Liferay scopes). You can create them in two ways:

• Administrators can create a Service Access Policy for the scope.

• Developers can create a JAX-RS endpoint. By default, the JAX-RS endpoint generates scopes based on the HTTP verbs it supports. A special annotation overrides this behavior and registers specific scopes.

Creating a Scope for a JSONWS Service

The most common way to create a scope is to create a Service Access Policy prefixed with the name OAUTH2_. This naming convention causes the policy to appear in the OAuth application configuration screen as a scope.

For example, to give access to the application to retrieve the user’s profile information for their email address,

1. Open the Global Menu () and navigate to Control Panel → Security → Service Access Policy.

2. Click New and create a policy per the information below.

   Field	Value
   Name	OAUTH2_userprofile
   Enabled	True
   Default	False
   Title	read your personal user data
   Service Class	com.liferay.portal.kernel.service.UserService
   Method Name	getCurrentUser

   

   Note that the policy is not a default policy, and that it grants access only to one method in the UserService. This is a JSONWS web service generated by Service Builder. You can view a list of all available services in your installation at this URL: http://[host]:[port]/api/jsonws/

3. Open the Global Menu () and navigate to Control Panel → Security → OAuth2 Administration.

4. Select Fragment Renderer.

   When you create a policy and prefix it with OAUTH2_, it appears in the Scopes tab.

   

5. You can find the newly created scope under PORTAL SERVICES. Select the checkbox and click Save.

Note

There’s another scope called read your personal user data. This is one of the many out-of-the-box scopes that comes with Liferay.

Creating the Authorization Page

This step is optional. Users need an interface to authorize access to their accounts, and one is provided automatically. If, however, you want to customize the page, you can create an authorization page in your site.

1. Open the Global Menu () and navigate to Control Panel → Instance Settings → Security → OAuth 2 → Authorize Screen.

   This screen displays the Authorize Screen URL field with this default value: /?p_p_id=com_liferay_oauth2_provider_web_internal_portlet_OAuth2AuthorizePortlet&p_p_state=maximized. This corresponds to an internal portlet.

   

2. Set the desired URL for the Authorize Screen (e.g., /authorize).

3. Navigate to the site and open the Site Menu (). Then, navigate to Site Builder → Pages.

4. Click New and choose Page.

   Note

   For Liferay DXP 7.3 and earlier, create a Private Page. Only authenticated users can access Private Pages.

5. Choose the Full Page Application type.

6. Give the page the same name you configured in step 2.

7. Turn the Hidden from Navigation Menu Widget switch on. You don’t want this page showing up in your Site navigation.

8. On the page that appears next, verify the Friendly URL matches the URL you configured in step 2.

9. Under Full Page Application, choose Application Authorization Request.

10. Click Save.

You can now use the default or custom UI to go through the authorization process.