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OpenID Connect (OIDC) Bearer token authentication

Secure HTTP access to Jakarta REST (formerly known as JAX-RS) endpoints in your application with Bearer token authentication by using the Quarkus OpenID Connect (OIDC) extension.

Overview of the Bearer token authentication mechanism in Quarkus

Quarkus supports the Bearer token authentication mechanism through the Quarkus OpenID Connect (OIDC) extension.

The bearer tokens are issued by OIDC and OAuth 2.0 compliant authorization servers, such as Keycloak.

Bearer token authentication is the process of authorizing HTTP requests based on the existence and validity of a bearer token. The bearer token provides information about the subject of the call, which is used to determine whether or not an HTTP resource can be accessed.

The following diagrams outline the Bearer token authentication mechanism in Quarkus:

Bearer
Figure 1. Bearer token authentication mechanism in Quarkus with Single-page application

  1. The Quarkus service retrieves verification keys from the OpenID Connect provider. The verification keys are used to verify the bearer access token signatures.

  2. The Quarkus user accesses the Single-page application.

  3. The Single-page application uses Authorization Code Flow to authenticate the user and retrieve tokens from the OpenID Connect provider.

  4. The Single-page application uses the access token to retrieve the service data from the Quarkus service.

  5. The Quarkus service verifies the bearer access token signature using the verification keys, checks the token expiry date and other claims, allows the request to proceed if the token is valid, and returns the service response to the Single-page application.

  6. The Single-page application returns the same data to the Quarkus user.

Bearer
Figure 2. Bearer token authentication mechanism in Quarkus with Java or command line client

  1. The Quarkus service retrieves verification keys from the OpenID Connect provider. The verification keys are used to verify the bearer access token signatures.

  2. The Client uses client_credentials that requires client ID and secret or password grant, which also requires client ID, secret, user name, and password to retrieve the access token from the OpenID Connect provider.

  3. The Client uses the access token to retrieve the service data from the Quarkus service.

  4. The Quarkus service verifies the bearer access token signature using the verification keys, checks the token expiry date and other claims, allows the request to proceed if the token is valid, and returns the service response to the Client.

If you need to authenticate and authorize the users using OpenID Connect Authorization Code Flow, see OIDC code flow mechanism for protecting web applications. Also, if you use Keycloak and bearer tokens, see Using Keycloak to Centralize Authorization.

To learn about how you can protect service applications by using OIDC Bearer token authentication, see OIDC Bearer token authentication tutorial.

If you want to protect web applications by using OIDC authorization code flow authentication, see OIDC authorization code flow authentication.

For information about how to support multiple tenants, see Using OpenID Connect Multi-Tenancy.

Accessing JWT claims

If you need to access JWT token claims then you can inject JsonWebToken:

package org.acme.security.openid.connect;

import org.eclipse.microprofile.jwt.JsonWebToken;
import jakarta.inject.Inject;
import jakarta.annotation.security.RolesAllowed;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;

@Path("/api/admin")
public class AdminResource {

    @Inject
    JsonWebToken jwt;

    @GET
    @RolesAllowed("admin")
    @Produces(MediaType.TEXT_PLAIN)
    public String admin() {
        return "Access for subject " + jwt.getSubject() + " is granted";
    }
}

Injection of JsonWebToken is supported in @ApplicationScoped, @Singleton and @RequestScoped scopes however the use of @RequestScoped is required if the individual claims are injected as simple types, please see Support Injection Scopes for JsonWebToken and Claims for more details.

User Info

Set quarkus.oidc.authentication.user-info-required=true if a UserInfo JSON object from the OIDC userinfo endpoint has to be requested. A request will be sent to the OpenID Provider UserInfo endpoint and an io.quarkus.oidc.UserInfo (a simple jakarta.json.JsonObject wrapper) object will be created. io.quarkus.oidc.UserInfo can be either injected or accessed as a SecurityIdentity userinfo attribute.

Configuration Metadata

The current tenant’s discovered OpenID Connect Configuration Metadata is represented by io.quarkus.oidc.OidcConfigurationMetadata and can be either injected or accessed as a SecurityIdentity configuration-metadata attribute.

The default tenant’s OidcConfigurationMetadata is injected if the endpoint is public.

Token Claims And SecurityIdentity Roles

SecurityIdentity roles can be mapped from the verified JWT access tokens as follows:

  • If quarkus.oidc.roles.role-claim-path property is set and matching array or string claims are found then the roles are extracted from these claims. For example, customroles, customroles/array, scope, "http://namespace-qualified-custom-claim"/roles, "http://namespace-qualified-roles", etc.

  • If groups claim is available then its value is used

  • If realm_access/roles or resource_access/client_id/roles (where client_id is the value of the quarkus.oidc.client-id property) claim is available then its value is used. This check supports the tokens issued by Keycloak

If the token is opaque (binary) then a scope property from the remote token introspection response will be used.

If UserInfo is the source of the roles then set quarkus.oidc.authentication.user-info-required=true and quarkus.oidc.roles.source=userinfo, and if needed, quarkus.oidc.roles.role-claim-path.

Additionally, a custom SecurityIdentityAugmentor can also be used to add the roles as documented in Security Identity Customization.

Token scopes And SecurityIdentity permissions

SecurityIdentity permissions are mapped in the form of the io.quarkus.security.StringPermission from the scope parameter of the source of the roles, using the same claim separator.

import jakarta.inject.Inject;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;

import org.eclipse.microprofile.jwt.Claims;
import org.eclipse.microprofile.jwt.JsonWebToken;

import io.quarkus.security.PermissionsAllowed;

@Path("/service")
public class ProtectedResource {

    @Inject
    JsonWebToken accessToken;

    @PermissionsAllowed("email") (1)
    @GET
    @Path("/email")
    public Boolean isUserEmailAddressVerifiedByUser() {
        return accessToken.getClaim(Claims.email_verified.name());
    }

    @PermissionsAllowed("orders_read") (2)
    @GET
    @Path("/order")
    public List<Order> listOrders() {
        return List.of(new Order(1));
    }

}
1 Only requests with OpenID Connect scope email are going to be granted access.
2 The read access is limited to the client requests with scope orders_read.

Please refer to the Permission annotation section of the Authorization of web endpoints guide for more information about the io.quarkus.security.PermissionsAllowed annotation.

Token Verification And Introspection

If the token is a JWT token then, by default, it will be verified with a JsonWebKey (JWK) key from a local JsonWebKeySet retrieved from the OpenID Connect Provider’s JWK endpoint. The token’s key identifier kid header value will be used to find the matching JWK key. If no matching JWK is available locally then JsonWebKeySet will be refreshed by fetching the current key set from the JWK endpoint. The JsonWebKeySet refresh can be repeated only after the quarkus.oidc.token.forced-jwk-refresh-interval (default is 10 minutes) expires. If no matching JWK is available after the refresh then the JWT token will be sent to the OpenID Connect Provider’s token introspection endpoint.

If the token is opaque (it can be a binary token or an encrypted JWT token) then it will always be sent to the OpenID Connect Provider’s token introspection endpoint.

If you work with JWT tokens only and expect that a matching JsonWebKey will always be available (possibly after a key set refresh) then you should disable the token introspection:

quarkus.oidc.token.allow-jwt-introspection=false
quarkus.oidc.token.allow-opaque-token-introspection=false

However, there could be cases where JWT tokens must be verified via the introspection only. It can be forced by configuring an introspection endpoint address only, for example, in case of Keycloak you can do it like this:

quarkus.oidc.auth-server-url=http://localhost:8180/realms/quarkus
quarkus.oidc.discovery-enabled=false
# Token Introspection endpoint: http://localhost:8180/realms/quarkus/protocol/openid-connect/tokens/introspect
quarkus.oidc.introspection-path=/protocol/openid-connect/tokens/introspect

An advantage of this indirect enforcement of JWT tokens being only introspected remotely is that two remote call are avoided: a remote OIDC metadata discovery call followed by another remote call fetching the verification keys which will not be used, while its disavantage is that the users need to know the introspection endpoint address and configure it manually.

The alternative approach is to allow discovering the OIDC metadata (which is a default option) but require that only the remote JWT introspection is performed:

quarkus.oidc.auth-server-url=http://localhost:8180/realms/quarkus
quarkus.oidc.token.require-jwt-introspection-only=true

An advantage of this approach is that the configuration is simple and easy to understand, while its disavantage is that a remote OIDC metadata discovery call is required to discover an introspection endpoint address (though the verification keys will also not be fetched).

Note that io.quarkus.oidc.TokenIntrospection (a simple jakarta.json.JsonObject wrapper) object will be created and can be either injected or accessed as a SecurityIdentity introspection attribute if either JWT or opaque token has been successfully introspected.

Token Introspection and UserInfo Cache

All opaque and sometimes JWT Bearer access tokens have to be remotely introspected. If UserInfo is also required then the same access token will be used to do a remote call to OpenID Connect Provider again. So, if UserInfo is required and the current access token is opaque then for every such token there will be 2 remote calls done - one to introspect it and one to get UserInfo with it, and if the token is JWT then usually only a single remote call will be needed - to get UserInfo with it.

The cost of making up to 2 remote calls per every incoming bearer or code flow access token can sometimes be problematic.

If it is the case in your production then it can be recommended that the token introspection and UserInfo data are cached for a short period of time, for example, for 3 or 5 minutes.

quarkus-oidc provides quarkus.oidc.TokenIntrospectionCache and quarkus.oidc.UserInfoCache interfaces which can be used to implement @ApplicationScoped cache implementation which can be used to store and retrieve quarkus.oidc.TokenIntrospection and/or quarkus.oidc.UserInfo objects, for example:

@ApplicationScoped
@Alternative
@Priority(1)
public class CustomIntrospectionUserInfoCache implements TokenIntrospectionCache, UserInfoCache {
...
}

Each OIDC tenant can either permit or deny storing its quarkus.oidc.TokenIntrospection and/or quarkus.oidc.UserInfo data with boolean quarkus.oidc."tenant".allow-token-introspection-cache and quarkus.oidc."tenant".allow-user-info-cache properties.

Additionally, quarkus-oidc provides a simple default memory based token cache which implements both quarkus.oidc.TokenIntrospectionCache and quarkus.oidc.UserInfoCache interfaces.

It can be activated and configured as follows:

# 'max-size' is 0 by default so the cache can be activated by setting 'max-size' to a positive value.
quarkus.oidc.token-cache.max-size=1000
# 'time-to-live' specifies how long a cache entry can be valid for and will be used by a cleanup timer.
quarkus.oidc.token-cache.time-to-live=3M
# 'clean-up-timer-interval' is not set by default so the cleanup timer can be activated by setting 'clean-up-timer-interval'.
quarkus.oidc.token-cache.clean-up-timer-interval=1M

The default cache uses a token as a key and each entry can have TokenIntrospection and/or UserInfo. It will only keep up to a max-size number of entries. If the cache is full when a new entry is to be added then an attempt will be made to find a space for it by removing a single expired entry. Additionally, the cleanup timer, if activated, will periodically check for the expired entries and remove them.

Please experiment with the default cache implementation or register a custom one.

JSON Web Token Claim Verification

Once the bearer JWT token’s signature has been verified and its expires at (exp) claim has been checked, the iss (issuer) claim value is verified next.

By default, the iss claim value is compared to the issuer property which may have been discovered in the well-known provider configuration. But if quarkus.oidc.token.issuer property is set then the iss claim value is compared to it instead.

In some cases, this iss claim verification may not work. For example, if the discovered issuer property contains an internal HTTP/IP address while the token iss claim value contains an external HTTP/IP address. Or when a discovered issuer property contains the template tenant variable but the token iss claim value has the complete tenant-specific issuer value.

In such cases you may want to consider skipping the issuer verification by setting quarkus.oidc.token.issuer=any. Please note that it is not recommended and should be avoided unless no other options are available:

  • If you work with Keycloak and observe the issuer verification errors due to the different host addresses then configure Keycloak with a KEYCLOAK_FRONTEND_URL property to ensure the same host address is used.

  • If the iss property is tenant specific in a multi-tenant deployment then you can use the SecurityIdentity tenant-id attribute to check the issuer is correct in the endpoint itself or the custom Jakarta REST filter, for example:

import jakarta.inject.Inject;
import jakarta.ws.rs.container.ContainerRequestContext;
import jakarta.ws.rs.container.ContainerRequestFilter;
import jakarta.ws.rs.ext.Provider;

import org.eclipse.microprofile.jwt.JsonWebToken;
import io.quarkus.oidc.OidcConfigurationMetadata;
import io.quarkus.security.identity.SecurityIdentity;

@Provider
public class IssuerValidator implements ContainerRequestFilter {
    @Inject
    OidcConfigurationMetadata configMetadata;

    @Inject JsonWebToken jwt;
    @Inject SecurityIdentity identity;

    public void filter(ContainerRequestContext requestContext) {
        String issuer = configMetadata.getIssuer().replace("{tenant-id}", identity.getAttribute("tenant-id"));
        if (!issuer.equals(jwt.getIssuer())) {
            requestContext.abortWith(Response.status(401).build());
        }
    }
}

Note it is also recommended to use quarkus.oidc.token.audience property to verify the token aud (audience) claim value.

Single Page Applications

Single Page Application (SPA) typically uses XMLHttpRequest(XHR) and the JavaScript utility code provided by the OpenID Connect provider to acquire a bearer token and use it to access Quarkus service applications.

For example, here is how you can use keycloak.js to authenticate the users and refresh the expired tokens from the SPA:

<html>
<head>
    <title>keycloak-spa</title>
    <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
    <script src="http://localhost:8180/js/keycloak.js"></script>
    <script>
        var keycloak = new Keycloak();
        keycloak.init({onLoad: 'login-required'}).success(function () {
            console.log('User is now authenticated.');
        }).error(function () {
            window.location.reload();
        });
        function makeAjaxRequest() {
            axios.get("/api/hello", {
                headers: {
                    'Authorization': 'Bearer ' + keycloak.token
                }
            })
            .then( function (response) {
                console.log("Response: ", response.status);
            }).catch(function (error) {
                console.log('refreshing');
                keycloak.updateToken(5).then(function () {
                    console.log('Token refreshed');
                }).catch(function () {
                    console.log('Failed to refresh token');
                    window.location.reload();
                });
            });
    }
    </script>
</head>
<body>
    <button onclick="makeAjaxRequest()">Request</button>
</body>
</html>

Cross Origin Resource Sharing

If you plan to consume your OpenID Connect service application from a Single Page Application running on a different domain, you will need to configure CORS (Cross-Origin Resource Sharing). Please read the CORS filter section of the "Cross-origin resource sharing" guide for more details.

Provider Endpoint configuration

OIDC service application needs to know OpenID Connect provider’s token, JsonWebKey (JWK) set and possibly UserInfo and introspection endpoint addresses.

By default, they are discovered by adding a /.well-known/openid-configuration path to the configured quarkus.oidc.auth-server-url.

Alternatively, if the discovery endpoint is not available, or if you would like to save on the discovery endpoint round-trip, you can disable the discovery and configure them with relative path values, for example:

quarkus.oidc.auth-server-url=http://localhost:8180/realms/quarkus
quarkus.oidc.discovery-enabled=false
# Token endpoint: http://localhost:8180/realms/quarkus/protocol/openid-connect/token
quarkus.oidc.token-path=/protocol/openid-connect/token
# JWK set endpoint: http://localhost:8180/realms/quarkus/protocol/openid-connect/certs
quarkus.oidc.jwks-path=/protocol/openid-connect/certs
# UserInfo endpoint: http://localhost:8180/realms/quarkus/protocol/openid-connect/userinfo
quarkus.oidc.user-info-path=/protocol/openid-connect/userinfo
# Token Introspection endpoint: http://localhost:8180/realms/quarkus/protocol/openid-connect/tokens/introspect
quarkus.oidc.introspection-path=/protocol/openid-connect/tokens/introspect

Token Propagation

Please see Token Propagation section about the Bearer access token propagation to the downstream services.

Oidc Provider Client Authentication

quarkus.oidc.runtime.OidcProviderClient is used when a remote request to an OpenID Connect Provider has to be done. If the bearer token has to be introspected then OidcProviderClient has to authenticate to the OpenID Connect Provider. Please see OidcProviderClient Authentication for more information about all the supported authentication options.

Testing

Start by adding the following dependencies to your test project:

pom.xml
<dependency>
    <groupId>io.rest-assured</groupId>
    <artifactId>rest-assured</artifactId>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-junit5</artifactId>
    <scope>test</scope>
</dependency>
build.gradle
testImplementation("io.rest-assured:rest-assured")
testImplementation("io.quarkus:quarkus-junit5")

Wiremock

Add the following dependencies to your test project:

pom.xml
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-oidc-server</artifactId>
    <scope>test</scope>
</dependency>
build.gradle
testImplementation("io.quarkus:quarkus-test-oidc-server")

Prepare the REST test endpoint, set application.properties, for example:

# keycloak.url is set by OidcWiremockTestResource
quarkus.oidc.auth-server-url=${keycloak.url}/realms/quarkus/
quarkus.oidc.client-id=quarkus-service-app
quarkus.oidc.application-type=service

and finally write the test code, for example:

import static org.hamcrest.Matchers.equalTo;

import java.util.Set;

import org.junit.jupiter.api.Test;

import io.quarkus.test.common.QuarkusTestResource;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.oidc.server.OidcWiremockTestResource;
import io.restassured.RestAssured;
import io.smallrye.jwt.build.Jwt;

@QuarkusTest
@QuarkusTestResource(OidcWiremockTestResource.class)
public class BearerTokenAuthorizationTest {

    @Test
    public void testBearerToken() {
        RestAssured.given().auth().oauth2(getAccessToken("alice", Set.of("user")))
            .when().get("/api/users/me")
            .then()
            .statusCode(200)
            // the test endpoint returns the name extracted from the injected SecurityIdentity Principal
            .body("userName", equalTo("alice"));
    }

    private String getAccessToken(String userName, Set<String> groups) {
        return Jwt.preferredUserName(userName)
                .groups(groups)
                .issuer("https://server.example.com")
                .audience("https://service.example.com")
                .sign();
    }
}

Note that the quarkus-test-oidc-server extension includes a signing RSA private key file in a JSON Web Key (JWK) format and points to it with a smallrye.jwt.sign.key.location configuration property. It allows to use a no argument sign() operation to sign the token.

Testing your quarkus-oidc service application with OidcWiremockTestResource provides the best coverage as even the communication channel is tested against the Wiremock HTTP stubs. OidcWiremockTestResource will be enhanced going forward to support more complex bearer token test scenarios.

If there is an immediate need for a test to define Wiremock stubs not currently supported by OidcWiremockTestResource one can do so via a WireMockServer instance injected into the test class, for example:

OidcWiremockTestResource does not work with @QuarkusIntegrationTest against Docker containers, because the Wiremock server is running in the JVM running the test, which cannot be accessed from the Docker container running the Quarkus application.

 
package io.quarkus.it.keycloak;

import static com.github.tomakehurst.wiremock.client.WireMock.matching;
import static org.hamcrest.Matchers.equalTo;

import org.junit.jupiter.api.Test;

import com.github.tomakehurst.wiremock.WireMockServer;
import com.github.tomakehurst.wiremock.client.WireMock;

import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.oidc.server.OidcWireMock;
import io.restassured.RestAssured;

@QuarkusTest
public class CustomOidcWireMockStubTest {

    @OidcWireMock
    WireMockServer wireMockServer;

    @Test
    public void testInvalidBearerToken() {
        wireMockServer.stubFor(WireMock.post("/auth/realms/quarkus/protocol/openid-connect/token/introspect")
                .withRequestBody(matching(".*token=invalid_token.*"))
                .willReturn(WireMock.aResponse().withStatus(400)));

        RestAssured.given().auth().oauth2("invalid_token").when()
                .get("/api/users/me/bearer")
                .then()
                .statusCode(401)
                .header("WWW-Authenticate", equalTo("Bearer"));
    }
}

OidcTestClient

If you work with SaaS OIDC providers such as Auth0 and would like to run tests against the test (development) domain or prefer to run tests against a remote Keycloak test realm, when you already have quarkus.oidc.auth-server-url configured, you can use OidcTestClient.

For example, lets assume you have the following configuration:

%test.quarkus.oidc.auth-server-url=https://dev-123456.eu.auth0.com/
%test.quarkus.oidc.client-id=test-auth0-client
%test.quarkus.oidc.credentials.secret=secret

Start with addding the same dependency as in the Wiremock section, quarkus-test-oidc-server.

Next, write the test code like this:

package org.acme;

import org.junit.jupiter.api.AfterAll;
import static io.restassured.RestAssured.given;
import static org.hamcrest.CoreMatchers.is;

import java.util.Map;

import org.junit.jupiter.api.Test;

import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.oidc.client.OidcTestClient;

@QuarkusTest
public class GreetingResourceTest {

    static OidcTestClient oidcTestClient = new OidcTestClient();

    @AfterAll
    public static void close() {
        client.close();
    }

    @Test
    public void testHelloEndpoint() {
        given()
          .auth().oauth2(getAccessToken("alice", "alice"))
          .when().get("/hello")
          .then()
             .statusCode(200)
             .body(is("Hello, Alice"));
    }

    private String getAccessToken(String name, String secret) {
        return oidcTestClient.getAccessToken(name, secret,
            Map.of("audience", "https://dev-123456.eu.auth0.com/api/v2/",
	           "scope", "profile"));
    }
}

This test code acquires a token using a password grant from the test Auth0 domain which has an application with the client id test-auth0-client registered, and which has a user alice with a password alice created. The test Auth0 application must have the password grant enabled for a test like this one to work. This example code also shows how to pass additional parameters. For Auth0, these are the audience and scope parameters.

Dev Services for Keycloak

Using Dev Services for Keycloak is recommended for the integration testing against Keycloak. Dev Services for Keycloak will launch and initialize a test container: it will create a quarkus realm, a quarkus-app client (secret secret) and add alice (admin and user roles) and bob (user role) users, where all of these properties can be customized.

First you need to add the following dependency:

pom.xml
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-keycloak-server</artifactId>
    <scope>test</scope>
</dependency>
build.gradle
testImplementation("io.quarkus:quarkus-test-keycloak-server")

which provides a utility class io.quarkus.test.keycloak.client.KeycloakTestClient you can use in tests for acquiring the access tokens.

Next prepare your application.properties. You can start with a completely empty application.properties as Dev Services for Keycloak will register quarkus.oidc.auth-server-url pointing to the running test container as well as quarkus.oidc.client-id=quarkus-app and quarkus.oidc.credentials.secret=secret.

But if you already have all the required quarkus-oidc properties configured then you only need to associate quarkus.oidc.auth-server-url with the prod profile for `Dev Services for Keycloak`to start a container, for example:

%prod.quarkus.oidc.auth-server-url=http://localhost:8180/realms/quarkus

If a custom realm file has to be imported into Keycloak before running the tests then you can configure Dev Services for Keycloak as follows:

%prod.quarkus.oidc.auth-server-url=http://localhost:8180/realms/quarkus
quarkus.keycloak.devservices.realm-path=quarkus-realm.json

Finally, write your test which will be executed in JVM mode:

package org.acme.security.openid.connect;

import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.keycloak.client.KeycloakTestClient;
import io.restassured.RestAssured;
import org.junit.jupiter.api.Test;

@QuarkusTest
public class BearerTokenAuthenticationTest {

    KeycloakTestClient keycloakClient = new KeycloakTestClient();

    @Test
    public void testAdminAccess() {
        RestAssured.given().auth().oauth2(getAccessToken("alice"))
                .when().get("/api/admin")
                .then()
                .statusCode(200);
        RestAssured.given().auth().oauth2(getAccessToken("bob"))
                .when().get("/api/admin")
                .then()
                .statusCode(403);
    }

    protected String getAccessToken(String userName) {
        return keycloakClient.getAccessToken(userName);
    }
}

and in native mode:

package org.acme.security.openid.connect;

import io.quarkus.test.junit.QuarkusIntegrationTest;

@QuarkusIntegrationTest
public class NativeBearerTokenAuthenticationIT extends BearerTokenAuthenticationTest {
}

Please see Dev Services for Keycloak for more information about the way it is initialized and configured.

KeycloakTestResourceLifecycleManager

If you need to do some integration testing against Keycloak then you are encouraged to do it with Dev Services For Keycloak. Use KeycloakTestResourceLifecycleManager for your tests only if there is a good reason not to use Dev Services for Keycloak.

Start with adding the following dependency:

pom.xml
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-keycloak-server</artifactId>
    <scope>test</scope>
</dependency>
build.gradle
testImplementation("io.quarkus:quarkus-test-keycloak-server")

which provides io.quarkus.test.keycloak.server.KeycloakTestResourceLifecycleManager - an implementation of io.quarkus.test.common.QuarkusTestResourceLifecycleManager which starts a Keycloak container.

And configure the Maven Surefire plugin as follows:

<plugin>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
        <systemPropertyVariables>
            <!-- or, alternatively, configure 'keycloak.version' -->
            <keycloak.docker.image>${keycloak.docker.image}</keycloak.docker.image>
            <!--
              Disable HTTPS if required:
              <keycloak.use.https>false</keycloak.use.https>
            -->
        </systemPropertyVariables>
    </configuration>
</plugin>

(and similarly maven.failsafe.plugin when testing in native image).

Prepare the REST test endpoint, set application.properties, for example:

# keycloak.url is set by KeycloakTestResourceLifecycleManager
quarkus.oidc.auth-server-url=${keycloak.url}/realms/quarkus/
quarkus.oidc.client-id=quarkus-service-app
quarkus.oidc.credentials=secret
quarkus.oidc.application-type=service

and finally write the test code, for example:

import static io.quarkus.test.keycloak.server.KeycloakTestResourceLifecycleManager.getAccessToken;
import static org.hamcrest.Matchers.equalTo;

import org.hamcrest.Matchers;
import org.junit.jupiter.api.Test;

import io.quarkus.test.common.QuarkusTestResource;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.keycloak.server.KeycloakTestResourceLifecycleManager;
import io.restassured.RestAssured;

@QuarkusTest
@QuarkusTestResource(KeycloakTestResourceLifecycleManager.class)
public class BearerTokenAuthorizationTest {

    @Test
    public void testBearerToken() {
        RestAssured.given().auth().oauth2(getAccessToken("alice"))))
            .when().get("/api/users/preferredUserName")
            .then()
            .statusCode(200)
            // the test endpoint returns the name extracted from the injected SecurityIdentity Principal
            .body("userName", equalTo("alice"));
    }

}

KeycloakTestResourceLifecycleManager registers alice and admin users. The user alice has the user role only by default - it can be customized with a keycloak.token.user-roles system property. The user admin has the user and admin roles by default - it can be customized with a keycloak.token.admin-roles system property.

By default, KeycloakTestResourceLifecycleManager uses HTTPS to initialize a Keycloak instance which can be disabled with keycloak.use.https=false. Default realm name is quarkus and client id - quarkus-service-app - set keycloak.realm and keycloak.service.client system properties to customize the values if needed.

Local Public Key

You can also use a local inlined public key for testing your quarkus-oidc service applications:

quarkus.oidc.client-id=test
quarkus.oidc.public-key=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlivFI8qB4D0y2jy0CfEqFyy46R0o7S8TKpsx5xbHKoU1VWg6QkQm+ntyIv1p4kE1sPEQO73+HY8+Bzs75XwRTYL1BmR1w8J5hmjVWjc6R2BTBGAYRPFRhor3kpM6ni2SPmNNhurEAHw7TaqszP5eUF/F9+KEBWkwVta+PZ37bwqSE4sCb1soZFrVz/UT/LF4tYpuVYt3YbqToZ3pZOZ9AX2o1GCG3xwOjkc4x0W7ezbQZdC9iftPxVHR8irOijJRRjcPDtA6vPKpzLl6CyYnsIYPd99ltwxTHjr3npfv/3Lw50bAkbT4HeLFxTx4flEoZLKO/g0bAoV2uqBhkA9xnQIDAQAB

smallrye.jwt.sign.key.location=/privateKey.pem

copy privateKey.pem from the integration-tests/oidc-tenancy in the main Quarkus repository and use a test code similar to the one in the Wiremock section above to generate JWT tokens. You can use your own test keys if preferred.

This approach provides a more limited coverage compared to the Wiremock approach - for example, the remote communication code is not covered.

TestSecurity annotation

You can use @TestSecurity and @OidcSecurity annotations for testing the service application endpoint code which depends on the injected JsonWebToken as well as UserInfo and OidcConfigurationMetadata.

Add the following dependency:

pom.xml
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-security-oidc</artifactId>
    <scope>test</scope>
</dependency>
build.gradle
testImplementation("io.quarkus:quarkus-test-security-oidc")

and write a test code like this one:

import static org.hamcrest.Matchers.is;
import org.junit.jupiter.api.Test;
import io.quarkus.test.common.http.TestHTTPEndpoint;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.security.TestSecurity;
import io.quarkus.test.security.oidc.Claim;
import io.quarkus.test.security.oidc.ConfigMetadata;
import io.quarkus.test.security.oidc.OidcSecurity;
import io.quarkus.test.security.oidc.OidcConfigurationMetadata;
import io.quarkus.test.security.oidc.UserInfo;
import io.restassured.RestAssured;

@QuarkusTest
@TestHTTPEndpoint(ProtectedResource.class)
public class TestSecurityAuthTest {

    @Test
    @TestSecurity(user = "userOidc", roles = "viewer")
    public void testOidc() {
        RestAssured.when().get("test-security-oidc").then()
                .body(is("userOidc:viewer"));
    }

    @Test
    @TestSecurity(user = "userOidc", roles = "viewer")
    @OidcSecurity(claims = {
            @Claim(key = "email", value = "user@gmail.com")
    }, userinfo = {
            @UserInfo(key = "sub", value = "subject")
    }, config = {
            @ConfigMetadata(key = "issuer", value = "issuer")
    })
    public void testOidcWithClaimsUserInfoAndMetadata() {
        RestAssured.when().get("test-security-oidc-claims-userinfo-metadata").then()
                .body(is("userOidc:viewer:user@gmail.com:subject:issuer"));
    }

}

where ProtectedResource class may look like this:

import io.quarkus.oidc.OidcConfigurationMetadata;
import io.quarkus.oidc.UserInfo;
import org.eclipse.microprofile.jwt.JsonWebToken;

@Path("/service")
@Authenticated
public class ProtectedResource {

    @Inject
    JsonWebToken accessToken;
    @Inject
    UserInfo userInfo;
    @Inject
    OidcConfigurationMetadata configMetadata;

    @GET
    @Path("test-security-oidc")
    public String testSecurityOidc() {
        return accessToken.getName() + ":" + accessToken.getGroups().iterator().next();
    }

    @GET
    @Path("test-security-oidc-claims-userinfo-metadata")
    public String testSecurityOidcWithClaimsUserInfoMetadata() {
        return accessToken.getName() + ":" + accessToken.getGroups().iterator().next()
                + ":" + accessToken.getClaim("email")
                + ":" + userInfo.getString("sub")
                + ":" + configMetadata.get("issuer");
    }
}

Note that @TestSecurity annotation must always be used and its user property is returned as JsonWebToken.getName() and roles property - as JsonWebToken.getGroups(). @OidcSecurity annotation is optional and can be used to set the additional token claims, as well as UserInfo and OidcConfigurationMetadata properties. Additionally, if quarkus.oidc.token.issuer property is configured then it will be used as an OidcConfigurationMetadata issuer property value.

If you work with the opaque tokens then you can test them as follows:

import static org.hamcrest.Matchers.is;
import org.junit.jupiter.api.Test;
import io.quarkus.test.common.http.TestHTTPEndpoint;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.security.TestSecurity;
import io.quarkus.test.security.oidc.OidcSecurity;
import io.quarkus.test.security.oidc.TokenIntrospection;
import io.restassured.RestAssured;

@QuarkusTest
@TestHTTPEndpoint(ProtectedResource.class)
public class TestSecurityAuthTest {

    @Test
    @TestSecurity(user = "userOidc", roles = "viewer")
    @OidcSecurity(introspectionRequired = true,
        introspection = {
            @TokenIntrospection(key = "email", value = "user@gmail.com")
        }
    )
    public void testOidcWithClaimsUserInfoAndMetadata() {
        RestAssured.when().get("test-security-oidc-claims-userinfo-metadata").then()
                .body(is("userOidc:viewer:userOidc:viewer"));
    }

}

where ProtectedResource class may look like this:

import io.quarkus.oidc.TokenIntrospection;
import io.quarkus.security.identity.SecurityIdentity;

@Path("/service")
@Authenticated
public class ProtectedResource {

    @Inject
    SecurityIdentity securityIdentity;
    @Inject
    TokenIntrospection introspection;

    @GET
    @Path("test-security-oidc-opaque-token")
    public String testSecurityOidcOpaqueToken() {
        return securityIdentity.getPrincipal().getName() + ":" + securityIdentity.getRoles().iterator().next()
            + ":" + introspection.getString("username")
            + ":" + introspection.getString("scope")
            + ":" + introspection.getString("email");
    }
}

Note that @TestSecurity user and roles attributes are available as TokenIntrospection username and scope properties and you can use io.quarkus.test.security.oidc.TokenIntrospection to add the additional introspection response properties such as an email, etc.

@TestSecurity and @OidcSecurity can be combined in a meta-annotation, for example like so:

    @Retention(RetentionPolicy.RUNTIME)
    @Target({ ElementType.METHOD })
    @TestSecurity(user = "userOidc", roles = "viewer")
    @OidcSecurity(introspectionRequired = true,
        introspection = {
            @TokenIntrospection(key = "email", value = "user@gmail.com")
        }
    )
    public @interface TestSecurityMetaAnnotation {

    }

This is particularly useful if the same set of security settings needs to be used in multiple test methods.

How to check the errors in the logs

Please enable io.quarkus.oidc.runtime.OidcProvider TRACE level logging to see more details about the token verification errors:

quarkus.log.category."io.quarkus.oidc.runtime.OidcProvider".level=TRACE
quarkus.log.category."io.quarkus.oidc.runtime.OidcProvider".min-level=TRACE

Please enable io.quarkus.oidc.runtime.OidcRecorder TRACE level logging to see more details about the OidcProvider client initialization errors:

quarkus.log.category."io.quarkus.oidc.runtime.OidcRecorder".level=TRACE
quarkus.log.category."io.quarkus.oidc.runtime.OidcRecorder".min-level=TRACE

External and Internal Access to OpenID Connect Provider

Note that the OpenID Connect Provider externally accessible token and other endpoints may have different HTTP(S) URLs compared to the URLs auto-discovered or configured relative to quarkus.oidc.auth-server-url internal URL. For example, if your SPA acquires a token from an external token endpoint address and sends it to Quarkus as a bearer token then an issuer verification failure may be reported by the endpoint.

In such cases, if you work with Keycloak then please start it with a KEYCLOAK_FRONTEND_URL system property set to the externally accessible base URL. If you work with other Openid Connect providers then please check your provider’s documentation.

How to use 'client-id' property

quarkus.oidc.client-id property identifies an OpenID Connect Client which requested the current bearer token. It can be an SPA application running in a browser or a Quarkus web-app confidential client application propagating the access token to the Quarkus service application.

This property is required if the service application is expected to introspect the tokens remotely - which is always the case for the opaque tokens. This property is optional if the local Json Web Key token verification only is used.

Nonetheless, setting this property is encouraged even if the endpoint does not require access to the remote introspection endpoint. The reasons behind it that client-id, if set, can be used to verify the token audience and will also be included in the logs when the token verification fails for the better traceability of the tokens issued to specific clients to be analyzed over a longer period of time.

For example, if your OpenID Connect provider sets a token audience then the following configuration pattern is recommended:

# Set client-id
quarkus.oidc.client-id=quarkus-app
# Token audience claim must contain 'quarkus-app'
quarkus.oidc.token.audience=${quarkus.oidc.client-id}

If you set quarkus.oidc.client-id but your endpoint does not require remote access to one of OpenID Connect Provider endpoints (introspection, token acquisition, etc.) then do not set a client secret with the quarkus.oidc.credentials or similar properties as it will not be used.

Note Quarkus web-app applications always require quarkus.oidc.client-id property.

Authentication after HTTP request has completed

Sometimes, SecurityIdentity for a given token must be created when there is no active HTTP request context. The quarkus-oidc extension provides io.quarkus.oidc.TenantIdentityProvider to convert a token to a SecurityIdentity instance. For example, one situation when you must verify the token after HTTP request has completed is when you are processing messages with the Vert.x event bus. In the example below, the 'product-order' message is consumed within different CDI request context, therefore an injected SecurityIdentity would not correctly represent the verified identity and be anonymous.

package org.acme.quickstart.oidc;

import static jakarta.ws.rs.core.HttpHeaders.AUTHORIZATION;

import jakarta.inject.Inject;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import io.vertx.core.eventbus.EventBus;

@Path("order")
public class OrderResource {

    @Inject
    EventBus eventBus;

    @POST
    public void order(String product, @HeaderParam(AUTHORIZATION) String bearer) {
        String rawToken = bearer.substring("Bearer ".length()); (1)
        eventBus.publish("product-order", new Product(product, 1, rawToken));
    }
}
1 At this point, token is not verified when proactive authentication is disabled. 
package org.acme.quickstart.oidc;

import jakarta.enterprise.context.ApplicationScoped;
import jakarta.inject.Inject;

import io.quarkus.oidc.AccessTokenCredential;
import io.quarkus.oidc.TenantFeature;
import io.quarkus.oidc.TenantIdentityProvider;
import io.quarkus.security.identity.SecurityIdentity;
import io.quarkus.vertx.ConsumeEvent;
import io.smallrye.common.annotation.Blocking;

@ApplicationScoped
public class OrderService {

    @TenantFeature("tenantId")
    @Inject
    TenantIdentityProvider identityProvider;

    @Inject
    TenantIdentityProvider defaultIdentityProvider; (1)

    @Blocking
    @ConsumeEvent("product-order")
    void processOrder(Product product) {
        String rawToken = product.customerAccessToken;
        AccessTokenCredential token = new AccessTokenCredential(rawToken);
        SecurityIdentity = identityProvider.authenticate(token).await().indefinitely(); (2)
        ...
    }

}
1 For default tenant, the TenantFeature qualifier is optional.
2 Executes token verification and converts the token to a SecurityIdentity.

When the provider is used during an HTTP request, the tenant configuration can be resolved as described in the Using OpenID Connect Multi-Tenancy guide. However, when there is no active HTTP request, you need to select tenant explicitly with the io.quarkus.oidc.TenantFeature qualifier.

Dynamic tenant configuration resolution is currently not supported. Authentication that requires dynamic tenant will fail.

References

Related content

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