Using OpenID Connect (OIDC) to Protect Web Applications using Authorization Code Flow

./attributes.adoc :toc:

This guide demonstrates how to use Quarkus OpenID Connect (OIDC) Extension to protect your Quarkus HTTP endpoints using OpenID Connect Authorization Code Flow supported by OpenID Connect compliant Authorization Servers such as Keycloak.

The extension allows to easily authenticate the users of your web application by redirecting them to the OpenID Connect Provider (e.g.: Keycloak) to login and, once the authentication is complete, return them back with the code confirming the successful authentication. The extension will request ID and access tokens from the OpenID Connect Provider using an authorization code grant and verify these tokens in order to authorize an access to the application.

Please read the Using OpenID Connect to Protect Service Applications guide if you need to protect your applications using Bearer Token Authorization.

Please read the Using OpenID Connect Multi-Tenancy guide how to support multiple tenants.

Quickstart

Prerequisites

To complete this guide, you need:

less than 15 minutes
an IDE
JDK 11+ installed with JAVA_HOME configured appropriately
Apache Maven {maven-version}
Docker

Architecture

In this example, we build a very simple web application with a single page:

/index.html

This page is protected and can only be accessed by authenticated users.

Solution

We recommend that you follow the instructions in the next sections and create the application step by step. However, you can go right to the completed example.

Clone the Git repository: git clone {quickstarts-clone-url}, or download an {quickstarts-archive-url}[archive].

The solution is located in the security-openid-connect-web-authentication-quickstart {quickstarts-tree-url}/security-openid-connect-web-authentication-quickstart[directory].

Creating the Maven Project

First, we need a new project. Create a new project with the following command:

mvn io.quarkus.platform:quarkus-maven-plugin:{quarkus-version}:create \
    -DprojectGroupId=org.acme \
    -DprojectArtifactId=security-openid-connect-web-authentication-quickstart \
    -Dextensions="resteasy,oidc" \
    -DnoExamples
cd security-openid-connect-web-authentication-quickstart

If you already have your Quarkus project configured, you can add the oidc extension to your project by running the following command in your project base directory:

./mvnw quarkus:add-extension -Dextensions="oidc"

This will add the following to your pom.xml:

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-oidc</artifactId>
</dependency>

Writing the application

Let’s write a simple JAX-RS resource which has all the tokens returned in the authorization code grant response injected:

package org.acme.security.openid.connect.web.authentication;

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

import org.eclipse.microprofile.jwt.JsonWebToken;

import io.quarkus.oidc.IdToken;
import io.quarkus.oidc.RefreshToken;

@Path("/tokens")
public class TokenResource {

    /**
     * Injection point for the ID Token issued by the OpenID Connect Provider
     */
    @Inject
    @IdToken
    JsonWebToken idToken;

    /**
     * Injection point for the Access Token issued by the OpenID Connect Provider
     */
    @Inject
    JsonWebToken accessToken;

    /**
     * Injection point for the Refresh Token issued by the OpenID Connect Provider
     */
    @Inject
    RefreshToken refreshToken;

    /**
     * Returns the tokens available to the application. This endpoint exists only for demonstration purposes, you should not
     * expose these tokens in a real application.
     *
     * @return a map containing the tokens available to the application
     */
    @GET
    public String getTokens() {
        StringBuilder response = new StringBuilder().append("<html>")
                .append("<body>")
                .append("<ul>");

        Object userName = this.idToken.getClaim("preferred_username");

        if (userName != null) {
            response.append("<li>username: ").append(userName.toString()).append("</li>");
        }

        Object scopes = this.accessToken.getClaim("scope");

        if (scopes != null) {
            response.append("<li>scopes: ").append(scopes.toString()).append("</li>");
        }

        response.append("<li>refresh_token: ").append(refreshToken.getToken() != null).append("</li>");

        return response.append("</ul>").append("</body>").append("</html>").toString();
    }
}

This endpoint has ID, access and refresh tokens injected. It returns a preferred_username claim from the ID token, a scope claim from the access token and also a refresh token availability status.

Note that you do not have to inject the tokens - it is only required if the endpoint needs to use the ID token to interact with the currently authenticated user or use the access token to access a downstream service on behalf of this user.

Please see Access ID and Access Tokens section below for more information.

Configuring the application

The OpenID Connect extension allows you to define the configuration using the application.properties file which should be located at the src/main/resources directory.

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus
quarkus.oidc.client-id=frontend
quarkus.oidc.credentials.secret=secret
quarkus.oidc.application-type=web-app
quarkus.http.auth.permission.authenticated.paths=/*
quarkus.http.auth.permission.authenticated.policy=authenticated

This is the simplest configuration you can have when enabling authentication to your application.

The quarkus.oidc.client-id property references the client_id issued by the OpenID Connect Provider and the quarkus.oidc.credentials.secret property sets the client secret.

The quarkus.oidc.application-type property is set to web-app in order to tell Quarkus that you want to enable the OpenID Connect Authorization Code Flow, so that your users are redirected to the OpenID Connect Provider to authenticate.

For last, the quarkus.http.auth.permission.authenticated permission is set to tell Quarkus about the paths you want to protect. In this case, all paths are being protected by a policy that ensures that only authenticated users are allowed to access. For more details check Security Authorization Guide.

Starting and Configuring the Keycloak Server

To start a Keycloak Server you can use Docker and just run the following command:

docker run --name keycloak -e KEYCLOAK_USER=admin -e KEYCLOAK_PASSWORD=admin -p 8180:8080 quay.io/keycloak/keycloak:{keycloak version}

You should be able to access your Keycloak Server at localhost:8180/auth.

Log in as the admin user to access the Keycloak Administration Console. Username should be admin and password admin.

Import the {quickstarts-tree-url}/security-openid-connect-web-authentication-quickstart/config/quarkus-realm.json[realm configuration file] to create a new realm. For more details, see the Keycloak documentation about how to create a new realm.

Running the Application in Dev and JVM modes

To run the application in a dev mode, use ./mvnw clean compile quarkus:dev.

When you’re done playing with the dev mode you can run it as a standard Java application.

First compile it:

./mvnw package

Then run it:

java -jar target/quarkus-app/quarkus-run.jar

Running the Application in Native Mode

This same demo can be compiled into native code: no modifications required.

This implies that you no longer need to install a JVM on your production environment, as the runtime technology is included in the produced binary, and optimized to run with minimal resource overhead.

Compilation will take a bit longer, so this step is disabled by default; let’s build again by enabling the native profile:

./mvnw package -Pnative

After getting a cup of coffee, you’ll be able to run this binary directly:

./target/security-openid-connect-web-authentication-quickstart-runner

Testing the Application

To test the application, you should open your browser and access the following URL:

http://localhost:8080

If everything is working as expected, you should be redirected to the Keycloak server to authenticate.

In order to authenticate to the application you should type the following credentials when at the Keycloak login page:

Username: alice
Password: alice

After clicking the Login button you should be redirected back to the application.

Please also see the Dev Services for Keycloak section below about writing the integration tests which depend on Dev Services for Keycloak.

Reference Guide

Accessing ID and Access Tokens

OIDC Code Authentication Mechanism acquires three tokens during the authorization code flow: IDToken, Access Token and Refresh Token.

ID Token is always a JWT token and is used to represent a user authentication with the JWT claims. One can access ID Token claims by injecting JsonWebToken with an IdToken qualifier:

import javax.inject.Inject;
import org.eclipse.microprofile.jwt.JsonWebToken;
import io.quarkus.oidc.IdToken;
import io.quarkus.security.Authenticated;

@Path("/web-app")
@Authenticated
public class ProtectedResource {

    @Inject
    @IdToken
    JsonWebToken idToken;

    @GET
    public String getUserName() {
        return idToken.getName();
    }
}

Access Token is usually used by the OIDC web-app application to access other endpoints on behalf of the currently logged in user. The raw access token can be accessed as follows:

import javax.inject.Inject;
import org.eclipse.microprofile.jwt.JsonWebToken;
import io.quarkus.oidc.AccessTokenCredential;
import io.quarkus.security.Authenticated;

@Path("/web-app")
@Authenticated
public class ProtectedResource {

    @Inject
    JsonWebToken accessToken;

    // or
    // @Inject
    // AccessTokenCredential accessTokenCredential;

    @GET
    public String getReservationOnBehalfOfUser() {
        String rawAccessToken = accessToken.getRawToken();
        //or
        //String rawAccessToken = accessTokenCredential.getToken();

        // Use the raw access token to access a remote endpoint
        return getReservationfromRemoteEndpoint(rawAccesstoken);
    }
}

Note that AccessTokenCredential will have to be used if the Access Token issued to the Quarkus web-app application is opaque (binary) and can not be parsed to JsonWebToken.

Injection of the JsonWebToken and AccessTokenCredential is supported in both @RequestScoped and @ApplicationScoped contexts.

RefreshToken is only used to refresh the current ID and access tokens as part of its session management process.

User Info

If IdToken does not provide enough information about the currently authenticated user then you can set a quarkus.oidc.authentication.user-info-required=true property for a UserInfo JSON object from the OIDC userinfo endpoint to be requested.

A request will be sent to the OpenID Provider UserInfo endpoint using the access token returned with the authorization code grant response and an io.quarkus.oidc.UserInfo (a simple javax.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

The way the roles are mapped to the SecurityIdentity roles from the verified tokens is identical to how it is done for the bearer tokens with the only difference being is that ID Token is used as a source of the roles by default.

Note if you use Keycloak then you should set a Microprofile JWT client scope for ID token to contain a groups claim, please see the Keycloak Server Administration Guide for more information.

If only the access token contains the roles and this access token is not meant to be propagated to the downstream endpoints then set quarkus.oidc.roles.source=accesstoken.

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 here.

Token Verification And Introspection

Please see Token Verification And Introspection for details about how the tokens are verified and introspected.

Note that in case of web-app applications only IdToken is verified by default since the access token is not used by default to access the current Quarkus web-app endpoint and instead meant to be propagated to the services expecting this access token, for example, to the OpenID Connect Provider’s UserInfo endpoint, etc. However if you expect the access token to contain the roles required to access the current Quarkus endpoint (quarkus.oidc.roles.source=accesstoken) then it will also be verified.

Token Introspection and UserInfo Cache

Code flow access tokens are not introspected unless they are expected to be the source of roles but will be used to get UserInfo. So there will be one or two remote calls with the code flow access token, if the token introspection and/or UserInfo are required.

Please see Token Introspection and UserInfo cache for more information about using a default token cache or registering a custom cache implementation.

JSON Web Token Claim Verification

Please see JSON Web Token Claim verification section about the claim verification, including the iss (issuer) claim. It applies to ID tokens but also to access tokens in a JWT format if the web-app application has requested the access token verification.

Redirection

When the user is redirected to the OpenID Connect Provider to authenticate, the redirect URL includes a redirect_uri query parameter which indicates to the Provider where the user has to be redirected to once the authentication has been completed.

Quarkus will set this parameter to the current request URL by default. For example, if the user is trying to access a Quarkus service endpoint at http://localhost:8080/service/1 then the redirect_uri parameter will be set to http://localhost:8080/service/1. Similarly, if the request URL is http://localhost:8080/service/2 then the redirect_uri parameter will be set to http://localhost:8080/service/2, etc.

OpenID Connect Providers may be configured to require the redirect_uri parameter to have the same value (eg. http://localhost:8080/service/callback) for all the redirect URLs. In such cases a quarkus.oidc.authentication.redirect-path property has to be set, for example, quarkus.oidc.authentication.redirect-path=/service/callback, and Quarkus will set the redirect_uri parameter to an absolute URL such as http://localhost:8080/service/callback which will be the same regardless of the current request URL.

If quarkus.oidc.authentication.redirect-path is set but the original request URL has to be restored after the user has been redirected back to a callback URL such as http://localhost:8080/service/callback then a quarkus.oidc.authentication.restore-path-after-redirect property has to be set to true which will restore the request URL such as http://localhost:8080/service/1, etc.

Dealing with Cookies

The OIDC adapter uses cookies to keep the session, code flow and post logout state.

quarkus.oidc.authentication.cookie-path property is used to ensure the cookies are visible especially when you access the protected resources with overlapping or different roots, for example:

/index.html and /web-app/service
/web-app/service1 and /web-app/service2
/web-app1/service and /web-app2/service

quarkus.oidc.authentication.cookie-path is set to / by default but can be narrowed to the more specific root path such as /web-app.

You can also set a quarkus.oidc.authentication.cookie-path-header property if the cookie path needs to be set dynamically. For example, setting quarkus.oidc.authentication.cookie-path-header=X-Forwarded-Prefix means that the value of HTTP X-Forwarded-Prefix header will be used to set a cookie path.

If quarkus.oidc.authentication.cookie-path-header is set but no configured HTTP header is available in the current request then the quarkus.oidc.authentication.cookie-path will be checked.

If your application is deployed across multiple domains, make sure to set a quarkus.oidc.authentication.cookie-domain property for the session cookie be visible to all protected Quarkus services, for example, if you have 2 services deployed at:

https://whatever.wherever.company.net/
https://another.address.company.net/

then the quarkus.oidc.authentication.cookie-domain property must be set to company.net.

Logout

By default the logout is based on the expiration time of the ID Token issued by the OpenID Connect Provider. When the ID Token expires, the current user session at the Quarkus endpoint is invalidated and the user is redirected to the OpenID Connect Provider again to authenticate. If the session at the OpenID Connect Provider is still active, users are automatically re-authenticated without having to provide their credentials again.

The current user session may be automatically extended by enabling a quarkus.oidc.token.refresh-expired property. If it is set to true then when the current ID Token expires a Refresh Token Grant will be used to refresh ID Token as well as Access and Refresh Tokens.

User-Initiated Logout

Users can request a logout by sending a request to the Quarkus endpoint logout path set with a quarkus.oidc.logout.path property. For example, if the endpoint address is https://application.com/webapp and the quarkus.oidc.logout.path is set to "/logout" then the logout request has to be sent to https://application.com/webapp/logout.

This logout request will start an RP-Initiated Logout and the user will be redirected to the OpenID Connect Provider to logout where a user may be asked to confirm the logout is indeed intended.

The user will be returned to the endpoint post logout page once the logout has been completed if the quarkus.oidc.logout.post-logout-path property is set. For example, if the endpoint address is https://application.com/webapp and the quarkus.oidc.logout.post-logout-path is set to "/signin" then the user will be returned to https://application.com/webapp/signin (note this URI must be registered as a valid post_logout_redirect_uri in the OpenID Connect Provider).

If the quarkus.oidc.logout.post-logout-path is set then a q_post_logout cookie will be created and a matching state query parameter will be added to the logout redirect URI and the OpenID Connect Provider will return this state once the logout has been completed. It is recommended for the Quarkus web-app applications to check that a state query parameter matches the value of the q_post_logout cookie which can be done for example in a JAX-RS filter.

Note that a cookie name will vary when using OpenID Connect Multi-Tenancy. For example, it will be named q_post_logout_tenant_1 for a tenant with a tenant_1 id, etc.

Here is an example of how to configure an RP initiated logout flow:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus
quarkus.oidc.client-id=frontend
quarkus.oidc.credentials.secret=secret
quarkus.oidc.application-type=web-app

quarkus.oidc.logout.path=/logout
quarkus.oidc.logout.post-logout-path=/welcome.html

# Only the authenticated users can initiate a logout:
quarkus.http.auth.permission.authenticated.paths=/logout
quarkus.http.auth.permission.authenticated.policy=authenticated

# Logged out users should be returned to the /welcome.html site which will offer an option to re-login:
quarkus.http.auth.permission.authenticated.paths=/welcome.html
quarkus.http.auth.permission.authenticated.policy=permit

You may also need to set quarkus.oidc.authentication.cookie-path to a path value common to all of the application resources which is / in this example. See Dealing with Cookies for more information.

Note that some OpenID Connect providers do not support RP-Initiated Logout specification (possibly because it is still technically a draft) and do not return an OpenID Connect well-known end_session_endpoint metadata property. However it should not be a problem since these providers' specific logout mechanisms may only differ in how the logout URL query parameters are named.

According to the RP-Initiated Logout specification, the quarkus.oidc.logout.post-logout-path property is represented as a post_logout_redirect_uri query parameter which will not be recognized by the providers which do not support this specification.

You can use quarkus.oidc.logout.post-logout-url-param to work around this issue. You can also request more logout query parameters added with quarkus.oidc.logout.extra-params. For example, here is how you can support a logout with Auth0:

quarkus.oidc.auth-server-url=https://dev-xxx.us.auth0.com
quarkus.oidc.client-id=redacted
quarkus.oidc.credentials.secret=redacted
quarkus.oidc.application-type=web-app

quarkus.oidc.tenant-logout.logout.path=/logout
quarkus.oidc.tenant-logout.logout.post-logout-path=/welcome.html

# Auth0 does not return the `end_session_endpoint` metadata property, configire it instead
quarkus.oidc.end-session-path=v2/logout
# Auth0 will not recognize the 'post_logout_redirect_uri' query parameter so make sure it is named as 'returnTo'
quarkus.oidc.logout.post-logout-uri-param=returnTo

# Set more properties if needed.
# For example, if 'client_id' is provided then a valid logout URI should be set as Auth0 Application property, without it - as Auth0 Tenant property.
quarkus.oidc.logout.extra-params.client_id=${quarkus.oidc.client-id}

Local Logout

If you work with a social provider such as Google and are concerned that the users can be logged out from all their Google applications with the User-Initiated Logout which redirects the users to the provider’s logout endpoint then you can support a local logout with the help of the OidcSession which only clears the local session cookie, for example:

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

import io.quarkus.oidc.OidcSession;

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

    @Inject
    OidcSession oidcSession;

    @GET
    @Path("logout")
    public String logout() {
        oidcSession.logout().await().indefinitely();
        return "You are logged out".
    }

Session Management

If you have a Single Page Application for Service Applications where your OpenID Connect Provider script such as keycloak.js is managing an authoriization code flow then that script will also control the SPA authentication session lifespan.

If you work with a Quarkus OIDC web-app application then it is Quarkus OIDC Code Authentication mechanism which is managing the user session lifespan.

The session age is calculated by adding the lifespan value of the current IDToken and the values of the quarkus.oidc.authentication.session-age-extension and quarkus.oidc.token.lifespan-grace properties. Of the last two properties only quarkus.oidc.authentication.session-age-extension should be used to significantly extend the session lifespan if required since quarkus.oidc.token.lifespan-grace is only meant for taking some small clock skews into consideration.

When the currently authenticated user returns to the protected Quarkus endpoint and the ID token associated with the session cookie has expired then, by default, the user will be auto-redirected to the OIDC Authorization endpoint to re-authenticate. Most likely the OIDC provider will challenge the user again though not necessarily if the session between the user and this OIDC provider is still active which may happen if it is configured to last longer than the ID token.

If the quarkus.oidc.token.refresh-expired then the expired ID token (as well as the access token) will be refreshed using the refresh token returned with the authorization code grant response. This refresh token may also be recycled (refreshed) itself as part of this process. As a result the new session cookie will be created and the session will be extended.

Note, quarkus.oidc.authentication.session-age-extension can be important when dealing with expired ID tokens, when the user is not very active. In such cases, if the ID token expires, then the session cookie may not be returned back to the Quarkus endpoint during the next user request and Quarkus will assume it is the first authentication request. Therefore using quarkus.oidc.authentication.session-age-extension is important if you need to have even the expired ID tokens refreshed.

You can also complement refreshing the expired ID tokens by proactively refreshing the valid ID tokens which are about to be expired within the quarkus.oidc.token.refresh-token-time-skew value. If, during the current user request, it is calculated that the current ID token will expire within this quarkus.oidc.token.refresh-token-time-skew then it will be refreshed and the new session cookie will be created. This property should be set to a value which is less than the ID token lifespan; the closer it is to this lifespan value the more often the ID token will be refreshed.

You can have this process further optimized by having a simple JavaScript function periodically emulating the user activity by pinging your Quarkus endpoint thus minimizing the window during which the user may have to be re-authenticated.

Note this user session can not be extended forever - the returning user with the expired ID token will have to re-authenticate at the OIDC provider endpoint once the refresh token has expired.

OidcSession

io.quarkus.oidc.OidcSession is a wrapper around the current IdToken. It can help to perform a Local Logout, retrieve the current session’s tenant identifier and check when the session will expire. More useful methods will be added to it over time.

TokenStateManager

OIDC CodeAuthenticationMechanism is using the default io.quarkus.oidc.TokenStateManager interface implementation to keep the ID, access and refresh tokens returned in the authorization code or refresh grant responses in a session cookie. It makes Quarkus OIDC endpoints completely stateless.

Note that some endpoints do not require the access token. An access token is only required if the endpoint needs to retrieve UserInfo or access the downstream service with this access token or use the roles associated with the access token (the roles in the ID token are checked by default). In such cases you can set either quarkus.oidc.token-state-manager.strategy=id-refresh-token (keep ID and refresh tokens only) or quarkus.oidc.token-state-manager.strategy=id-token (keep ID token only).

If the ID, access and refresh tokens are JWT tokens then combining all of them (if the strategy is the default keep-all-tokens) or only ID and refresh tokens (if the strategy is id-refresh-token) may produce a session cookie value larger than 4KB and the browsers may not be able to keep this cookie. In such cases, you can use quarkus.oidc.token-state-manager.split-tokens=true to have a unique session token per each of these tokens.

Register your own io.quarkus.oidc.TokenStateManager' implementation as an `@ApplicationScoped CDI bean if you need to customize the way the tokens are associated with the session cookie. For example, you may want to keep the tokens in a database and have only a database pointer stored in a session cookie. Note though that it may present some challenges in making the tokens available across multiple microservices nodes.

Here is a simple example:

package io.quarkus.oidc.test;

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

import io.quarkus.arc.AlternativePriority;
import io.quarkus.oidc.AuthorizationCodeTokens;
import io.quarkus.oidc.OidcTenantConfig;
import io.quarkus.oidc.TokenStateManager;
import io.quarkus.oidc.runtime.DefaultTokenStateManager;
import io.smallrye.mutiny.Uni;
import io.vertx.ext.web.RoutingContext;

@ApplicationScoped
@AlternativePriority(1)
public class CustomTokenStateManager implements TokenStateManager {

    @Inject
    DefaultTokenStateManager tokenStateManager;

    @Override
    public Uni<String> createTokenState(RoutingContext routingContext, OidcTenantConfig oidcConfig,
            AuthorizationCodeTokens sessionContent, TokenStateManager.CreateTokenStateRequestContext requestContext) {
        return tokenStateManager.createTokenState(routingContext, oidcConfig, sessionContent, requestContext)
                .map(t -> (t + "|custom"));
    }

    @Override
    public Uni<AuthorizationCodeTokens> getTokens(RoutingContext routingContext, OidcTenantConfig oidcConfig,
            String tokenState, TokenStateManager.GetTokensRequestContext requestContext) {
        if (!tokenState.endsWith("|custom")) {
            throw new IllegalStateException();
        }
        String defaultState = tokenState.substring(0, tokenState.length() - 7);
        return tokenStateManager.getTokens(routingContext, oidcConfig, defaultState, requestContext);
    }

    @Override
    public Uni<Void> deleteTokens(RoutingContext routingContext, OidcTenantConfig oidcConfig, String tokenState,
            TokenStateManager.DeleteTokensRequestContext requestContext) {
        if (!tokenState.endsWith("|custom")) {
            throw new IllegalStateException();
        }
        String defaultState = tokenState.substring(0, tokenState.length() - 7);
        return tokenStateManager.deleteTokens(routingContext, oidcConfig, defaultState, requestContext);
    }
}

Listening to important authentication events

One can register @ApplicationScoped bean which will observe important OIDC authentication events. The listener will be updated when a user has logged in for the first time or re-authenticated, as well as when the session has been refreshed. More events may be reported in the future. For example:

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Observes;

import io.quarkus.oidc.IdTokenCredential;
import io.quarkus.oidc.SecurityEvent;
import io.quarkus.security.identity.AuthenticationRequestContext;
import io.vertx.ext.web.RoutingContext;

@ApplicationScoped
public class SecurityEventListener {

    public void event(@Observes SecurityEvent event) {
        String tenantId = event.getSecurityIdentity().getAttribute("tenant-id");
        RoutingContext vertxContext = event.getSecurityIdentity().getCredential(IdTokenCredential.class).getRoutingContext();
        vertxContext.put("listener-message", String.format("event:%s,tenantId:%s", event.getEventType().name(), tenantId));
    }
}

Single Page Applications

Please check if implementing SPAs the way it is suggested in the Single Page Applications for Service Applications section can meet your requirements.

If you prefer to use SPA and JavaScript API such as Fetch or XMLHttpRequest(XHR) with Quarkus web applications, please be aware that OpenID Connect Providers may not support CORS for Authorization endpoints where the users are authenticated after a redirect from Quarkus. This will lead to authentication failures if the Quarkus application and the OpenID Connect Provider are hosted on the different HTTP domains/ports.

In such cases, set the quarkus.oidc.authentication.java-script-auto-redirect property to false which will instruct Quarkus to return a 499 status code and WWW-Authenticate header with the OIDC value. The browser script also needs to be updated to set X-Requested-With header with the JavaScript value and reload the last requested page in case of 499, for example:

Future<void> callQuarkusService() async {
    Map<String, String> headers = Map.fromEntries([MapEntry("X-Requested-With", "JavaScript")]);

    await http
        .get("https://localhost:443/serviceCall")
        .then((response) {
            if (response.statusCode == 499) {
                window.location.assign("https://localhost.com:443/serviceCall");
            }
         });
  }

Cross Origin Resource Sharing

If you plan to consume this application from a Single Page Application running on a different domain, you will need to configure CORS (Cross-Origin Resource Sharing). Please read the HTTP CORS documentation for more details.

Integration with GitHub and other OAuth2 providers

Some well known providers such as GitHub or LinkedIn are not OpenID Connect but OAuth2 providers which support the authorization code flow, for example, GitHub OAuth2 and LinkedIn OAuth2.

The main difference between OpenID Connect and OAuth2 providers is that OpenID Connect providers, by building on top of OAuth2, return an ID Token representing a user authentication, in addition to the standard authorization code flow access and refresh tokens returned by OAuth2 providers.

OAuth2 providers such as GitHub do not return IdToken, the fact of the user authentication is implicit and is indirectly represented by the access token which represents an authenticated user authorizing the current Quarkus web-app application to access some data on behalf of the authenticated user.

For example, when working with GitHub, the Quarkus endpoint can acquire an access token which will allow it to request a GitHub profile of the current user. In fact this is exactly how a standard OpenID Connect UserInfo acqusition also works - by authenticating into your OpenID Connect provider you also give a permission to Quarkus application to acquire your UserInfo on your behalf - and it also shows what is meant by OpenID Connect being built on top of OAuth2.

In order to support the integration with such OAuth2 servers, quarkus-oidc needs to be configured to allow the authorization code flow responses without IdToken: quarkus.oidc.authentication.id-token-required=false.

It is required because quarkus-oidc expects that not only access and refresh tokens but also IdToken will be returned once the authorization code flow completes.

Note, even though you will configure the extension to support the authorization code flows without IdToken, an internal IdToken will be generated to support the way quarkus-oidc operates where an IdToken is used to support the authentication session and to avoid redirecting the user to the provider such as GitHub on every request. In this case the session lifespan is set to 5 minutes which can be extended further as described in the session management section.

The next step is to ensure that the returned access token can be useful to the current Quarkus endpoint. If the OAuth2 provider supports the introspection endpoint then you may be able to use this access token as a source of roles with quarkus.oidc.roles.source=accesstoken. If no introspection endpoint is available then at the very least it should be possible to request UserInfo from this provider with quarkus.oidc.authentication.user-info-required - this is the case with GitHib.

Configuring the endpoint to request UserInfo is the only way quarkus-oidc can be integrated with the providers such as GitHib.

Note that requiring UserInfo involves making a remote call on every request - therefore you may want to consider caching UserInfo data, see <<token-introspection-userinfo-cache,Token Introspection and UserInfo Cache> for more details.

Also, OAuth2 servers may not support a well-known configuration endpoint in which case the discovery has to be disabled and the authorization, token, and introspection and/or userinfo endpoint paths have to be configured manually.

Here is how you can integrate quarkus-oidc with GitHub after you have created a GitHub OAuth application. Configure your Quarkus endpoint like this:

quarkus.oidc.provider=github
quarkus.oidc.client-id=github_app_clientid
quarkus.oidc.credentials.secret=github_app_clientsecret

# user:email scope is requested by default, use 'quarkus.oidc.authentication.scopes' to request differrent scopes such as `read:user`.
# See https://docs.github.com/en/developers/apps/building-oauth-apps/scopes-for-oauth-apps for more information.

# Consider enabling UserInfo Cache
# quarkus.oidc.token-cache.max-size=1000
# quarkus.oidc.token-cache.time-to-live=5M

This is all what is needed for an endpoint like this one to return the currently authenticated user’s profile with GET http://localhost:8080/github/userinfo and access it as the individual UserInfo properties:

import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

import io.quarkus.oidc.UserInfo;
import io.quarkus.security.Authenticated;

@Path("/github")
@Authenticated
public class TokenResource {

    @Inject
    UserInfo userInfo;

    @GET
    @Path("/userinfo")
    @Produces("application/json")
    public String getUserInfo() {
        return userInfo.getUserInfoString();
    }
}

If you support more than one social provider with the help of OpenID Connect Multi-Tenancy, for example, Google which is an OpenID Connect Provider returning IdToken and GitHub which is an OAuth2 provider returning no IdToken and only allowing to access UserInfo then you can have your endpoint working with only the injected SecurityIdentity for both Google and GitHub flows. A simple augmentation of SecurityIdentity will be required where a principal created with the internally generated IdToken will be replaced with the UserInfo based principal when the GiHub flow is active:

package io.quarkus.it.keycloak;

import java.security.Principal;

import javax.enterprise.context.ApplicationScoped;

import io.quarkus.oidc.UserInfo;
import io.quarkus.security.identity.AuthenticationRequestContext;
import io.quarkus.security.identity.SecurityIdentity;
import io.quarkus.security.identity.SecurityIdentityAugmentor;
import io.quarkus.security.runtime.QuarkusSecurityIdentity;
import io.smallrye.mutiny.Uni;
import io.vertx.ext.web.RoutingContext;

@ApplicationScoped
public class CustomSecurityIdentityAugmentor implements SecurityIdentityAugmentor {

    @Override
    public Uni<SecurityIdentity> augment(SecurityIdentity identity, AuthenticationRequestContext context) {
        RoutingContext routingContext = identity.getAttribute(RoutingContext.class.getName());
        if (routingContext != null && routingContext.normalizedPath().endsWith("/github")) {
	        QuarkusSecurityIdentity.Builder builder = QuarkusSecurityIdentity.builder(identity);
	        UserInfo userInfo = identity.getAttribute("userinfo");
	        builder.setPrincipal(new Principal() {

	            @Override
	            public String getName() {
	                return userInfo.getString("preferred_username");
	            }

	        });
	        identity = builder.build();
        }
        return Uni.createFrom().item(identity);
    }

}

Now, the following code will work when the user is signing in into your application with both Google or GitHub:

import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

import io.quarkus.security.Authenticated;
import io.quarkus.security.identity.SecurityIdentity;

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

    @Inject
    SecurityIdentity identity;

    @GET
    @Path("/google")
    @Produces("application/json")
    public String getUserName() {
        return identity.getPrincipal().getName();
    }

    @GET
    @Path("/github")
    @Produces("application/json")
    public String getUserName() {
        return identity.getPrincipal().getUserName();
    }
}

Possibly a simpler alternative is to inject both @IdToken JsonWebToken and UserInfo and use JsonWebToken when dealing with the providers returning IdToken and UserInfo - with the providers which do not return IdToken.

The last important point is to make sure the callback path you enter in the GitHub OAuth application configuration matches the endpoint path where you’d like the user be redirected to after a successful GitHub authentication and application authorization, in this case it has to be set to http:localhost:8080/github/userinfo.

Cloud Services

Google Cloud

You can have Quarkus OIDC web-app applications access Google Cloud services such as BigQuery on behalf of the currently authenticated users who have enabled OpenID Connect (Authorization Code Flow) permissions to such services in their Google Developer Consoles.

It is super easy to do with Quarkiverse Google Cloud Services, only add the latest tag service dependency, for example:

<dependency>
  <groupId>io.quarkiverse.googlecloudservices</groupId>
  <artifactId>quarkus-google-cloud-bigquery</artifactId>
  <version>${quarkiverse.googlecloudservices.version}</version>
</dependency>

and configure Google OIDC properties:

quarkus.oidc.provider=google
quarkus.oidc.client-id={GOOGLE_CLIENT_ID}
quarkus.oidc.credentials.secret={GOOGLE_CLIENT_SECRET}
quarkus.oidc.token.issuer=https://accounts.google.com

Provider Endpoint configuration

OIDC web-app application needs to know OpenID Connect provider’s authorization, token, JsonWebKey (JWK) set and possibly UserInfo, introspection and end session (RP-initiated logout) 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 you would like to save on the discovery endpoint roundtrip, you can disable the discovery and configure them with relative path values, for example:

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

Token Propagation

Please see Token Propagation section about the Authorization Code Flow 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. It has to authenticate to the OpenID Connect Provider when the authorization code has to be exchanged for the ID, access and refresh tokens, when the ID and access tokens have to be refreshed or introspected.

All the OIDC Client Authentication options are supported, for example:

client_secret_basic:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.secret=mysecret

or

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.client-secret.value=mysecret

or with the secret retrieved from a CredentialsProvider:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app

# This is a key which will be used to retrieve a secret from the map of credentials returned from CredentialsProvider
quarkus.oidc.credentials.client-secret.provider.key=mysecret-key
# Set it only if more than one CredentialsProvider can be registered
quarkus.oidc.credentials.client-secret.provider.name=oidc-credentials-provider

client_secret_post:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.client-secret.value=mysecret
quarkus.oidc.credentials.client-secret.method=post

client_secret_jwt, signature algorithm is HS256:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.jwt.secret=AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow

or with the secret retrieved from a CredentialsProvider:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app

# This is a key which will be used to retrieve a secret from the map of credentials returned from CredentialsProvider
quarkus.oidc.credentials.jwt.secret-provider.key=mysecret-key
# Set it only if more than one CredentialsProvider can be registered
quarkus.oidc.credentials.jwt.secret-provider.name=oidc-credentials-provider

private_key_jwt with the PEM key file, signature algorithm is RS256:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.jwt.key-file=privateKey.pem

private_key_jwt with the key store file, signature algorithm is RS256:

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.jwt.key-store-file=keystore.jks
quarkus.oidc.credentials.jwt.key-store-password=mypassword
quarkus.oidc.credentials.jwt.key-password=mykeypassword

# Private key alias inside the keystore
quarkus.oidc.credentials.jwt.key-id=mykeyAlias

Using client_secret_jwt or private_key_jwt authentication methods ensures that no client secret goes over the wire.

Additional JWT Authentication options

If client_secret_jwt, private_key_jwt authentication methods are used or an Apple post_jwt method is used then the JWT signature algorithm, key identifier, audience, subject and issuer can be customized, for example:

# private_key_jwt client authentication

quarkus.oidc.auth-server-url=http://localhost:8180/auth/realms/quarkus/
quarkus.oidc.client-id=quarkus-app
quarkus.oidc.credentials.jwt.key-file=privateKey.pem

# This is a token key identifier 'kid' header - set it if your OpenID Connect provider requires it.
# Note if the key is represented in a JSON Web Key (JWK) format with a `kid` property then
# using 'quarkus.oidc.credentials.jwt.token-key-id' is not necessary.
quarkus.oidc.credentials.jwt.token-key-id=mykey

# Use RS512 signature algorithm instead of the default RS256
quarkus.oidc.credentials.jwt.signature-algorithm=RS512

# The token endpoint URL is the default audience value, use the base address URL instead:
quarkus.oidc.credentials.jwt.audience=${quarkus.oidc-client.auth-server-url}

# custom subject instead of the client id :
quarkus.oidc.credentials.jwt.subject=custom-subject

# custom issuer instead of the client id :
quarkus.oidc.credentials.jwt.issuer=custom-issuer

Apple POST JWT

Apple OpenID Connect Provider uses a client_secret_post method where a secret is a JWT produced with a private_key_jwt authentication method but with Apple account specific issuer and subject claims.

quarkus-oidc supports a non-standard client_secret_post_jwt authentication method which can be configured as follows:

# Apple provider configuration sets a 'client_secret_post_jwt' authentication method
quarkus.oidc.provider=apple

quarkus.oidc.client-id=${apple.client-id}
quarkus.oidc.credentials.jwt.key-file=ecPrivateKey.pem
quarkus.oidc.credentials.jwt.token-key-id=${apple.key-id}
# Apple provider configuration sets ES256 signature algorithm

quarkus.oidc.credentials.jwt.subject=${apple.subject}
quarkus.oidc.credentials.jwt.issuer=${apple.issuer}

Testing

Start by adding the following dependencies to your test project:

<dependency>
    <groupId>net.sourceforge.htmlunit</groupId>
    <artifactId>htmlunit</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>*</artifactId>
       </exclusion>
    </exclusions>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-junit5</artifactId>
    <scope>test</scope>
</dependency>

Wiremock

Add the following dependency:

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-oidc-server</artifactId>
    <scope>test</scope>
</dependency>

Prepare the REST test endpoints, 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-web-app
quarkus.oidc.credentials.secret=secret
quarkus.oidc.application-type=web-app

and finally write the test code, for example:

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.junit.jupiter.api.Test;

import com.gargoylesoftware.htmlunit.SilentCssErrorHandler;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

import io.quarkus.test.common.QuarkusTestResource;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.oidc.server.OidcWiremockTestResource;

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

    @Test
    public void testCodeFlow() throws Exception {
        try (final WebClient webClient = createWebClient()) {
            // the test REST endpoint listens on '/code-flow'
            HtmlPage page = webClient.getPage("http://localhost:8081/code-flow");

            HtmlForm form = page.getFormByName("form");
            // user 'alice' has the 'user' role
            form.getInputByName("username").type("alice");
            form.getInputByName("password").type("alice");

            page = form.getInputByValue("login").click();

            assertEquals("alice", page.getBody().asText());
        }
    }

    private WebClient createWebClient() {
        WebClient webClient = new WebClient();
        webClient.setCssErrorHandler(new SilentCssErrorHandler());
        return webClient;
    }
}

OidcWiremockTestResource recognizes alice and admin users. The user alice has the user role only by default - it can be customized with a quarkus.test.oidc.token.user-roles system property. The user admin has the user and admin roles by default - it can be customized with a quarkus.test.oidc.token.admin-roles system property.

Additionally, OidcWiremockTestResource set token issuer and audience to https://service.example.com which can be customized with quarkus.test.oidc.token.issuer and quarkus.test.oidc.token.audience system properties.

OidcWiremockTestResource can be used to emulate all OpenID Connect providers.

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 prepare 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/auth/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/auth/realms/quarkus
quarkus.keycloak.devservices.realm-path=quarkus-realm.json

Finally write a test code the same way as it is described in the Wiremock section above. The only difference is that @QuarkusTestResource is no longer needed:

@QuarkusTest
public class CodeFlowAuthorizationTest {
}

KeycloakTestResourceLifecycleManager

If you need to do the 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:

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-test-keycloak-server</artifactId>
    <scope>test</scope>
</dependency>

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

And configure 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).

And now set the configuration and write the test code the same way as it is described in the Wiremock section above. The only difference is the name of QuarkusTestResource:

import io.quarkus.test.keycloak.server.KeycloakTestResourceLifecycleManager;

@QuarkusTest
@QuarkusTestResource(KeycloakTestResourceLifecycleManager.class)
public class CodeFlowAuthorizationTest {
}

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-web-app - set keycloak.realm and keycloak.web-app.client system properties to customize the values if needed.

TestSecurity annotation

Please see Use TestingSecurity with injected JsonWebToken section for more information about using @TestSecurity and @OidcSecurity annotations for testing the web-app application endpoint code which depends on the injected ID and access JsonWebToken as well as UserInfo and OidcConfigurationMetadata.

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

Running behind a reverse proxy

OIDC authentication mechanism can be affected if your Quarkus application is running behind a reverse proxy/gateway/firewall when HTTP Host header may be reset to the internal IP address, HTTPS connection may be terminated, etc. For example, an authorization code flow redirect_uri parameter may be set to the internal host instead of the expected external one.

In such cases configuring Quarkus to recognize the original headers forwarded by the proxy will be required, see Running behind a reverse proxy Vert.x documentation section for more information.

For example, if your Quarkus endpoint runs in a cluster behind Kubernetes Ingress then a redirect from the OpenID Connect Provider back to this endpoint may not work since the calculated redirect_uri parameter may point to the internal endpoint address. This problem can be resolved with the following configuration:

quarkus.http.proxy.proxy-address-forwarding=true
quarkus.http.proxy.allow-forwarded=false
quarkus.http.proxy.enable-forwarded-host=true
quarkus.http.proxy.forwarded-host-header=X-ORIGINAL-HOST

where X-ORIGINAL-HOST is set by Kubernetes Ingress to represent the external endpoint address.

quarkus.oidc.authentication.force-redirect-https-scheme property may also be used when the Quarkus application is running behind a SSL terminating reverse proxy.

External and Internal Access to OpenID Connect Provider

Note that the OpenID Connect Provider externally accessible authorization, logout 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. In such cases an issuer verification failure may be reported by the endpoint and redirects to the externally accessible Connect Provider endpoints may fail.

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.

Customize authentication requests

By default, only the response_type (set to code), scope (set to 'openid'), client_id, redirect_uri and state properties are passed as HTTP query parameters to the OpenID Connect provider’s authorization endpoint when the user is redirected to it to authenticate.

You can add more properties to it with quarkus.oidc.authentication.extra-params. For example, some OpenID Connect providers may choose to return the authorization code as part of the redirect URI’s fragment which would break the authentication process - it can be fixed as follows:

quarkus.oidc.authentication.extra-params.response_mode=query

Configuration Reference

{generated-dir}/config/quarkus-oidc.adoc

References

Keycloak Documentation
OpenID Connect
JSON Web Token
Quarkus - Using OpenID Connect and OAuth2 Client and Filters to manage access tokens
Dev Services for Keycloak
Summary of Quarkus OIDC, JWT and OAuth2 features
Quarkus Security

Files

security-openid-connect-web-authentication.adoc

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