Red Hat Summit2.3.2. OAuth token requests
OpenShift Dedicated automatically creates OAuth clients to handle token requests from different user agents, including browser-based and CLI tools. These clients interact with OAuth endpoints to authenticate users through interactive login flows or WWW-Authenticate challenges.
The following OAuth clients are automatically created when starting the OpenShift Dedicated API:
| OAuth client | Usage |
|---|---|
|
|
Requests tokens at |
|
|
Requests tokens with a user-agent that can handle |
<namespace_route>refers to the namespace route. This is found by running the following command:$ oc get route oauth-openshift -n openshift-authentication -o json | jq .spec.host
All requests for OAuth tokens involve a request to <namespace_route>/oauth/authorize. Most authentication integrations place an authenticating proxy in front of this endpoint, or configure OpenShift Dedicated to validate credentials against a backing identity provider. Requests to <namespace_route>/oauth/authorize can come from user-agents that cannot display interactive login pages, such as the CLI. Therefore, OpenShift Dedicated supports authenticating using a WWW-Authenticate challenge in addition to interactive login flows.
If an authenticating proxy is placed in front of the <namespace_route>/oauth/authorize endpoint, it sends unauthenticated, non-browser user-agents WWW-Authenticate challenges rather than displaying an interactive login page or redirecting to an interactive login flow.
To prevent cross-site request forgery (CSRF) attacks against browser clients, only send Basic authentication challenges with if a X-CSRF-Token header is on the request. Clients that expect to receive Basic WWW-Authenticate challenges must set this header to a non-empty value.
If the authenticating proxy cannot support WWW-Authenticate challenges, or if OpenShift Dedicated is configured to use an identity provider that does not support WWW-Authenticate challenges, you must use a browser to manually obtain a token from <namespace_route>/oauth/token/request.
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