org.pac4j.vertx.handler.impl.CallbackDeployingPac4jAuthHandler Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of vertx-pac4j Show documentation
The newest version!
package org.pac4j.vertx.handler.impl;

import io.vertx.core.Handler;
import io.vertx.core.Vertx;
import io.vertx.core.http.HttpMethod;
import io.vertx.core.logging.Logger;
import io.vertx.core.logging.LoggerFactory;
import io.vertx.ext.web.Router;
import io.vertx.ext.web.RoutingContext;
import org.pac4j.core.config.Config;
import org.pac4j.core.context.session.SessionStore;
import org.pac4j.core.util.CommonHelper;
import org.pac4j.vertx.auth.Pac4jAuthProvider;

import java.net.URI;
import java.net.URISyntaxException;

/**
 * Version of the Pac4j authentication handler which auto-deploys a CallbackHandler on the relative URL derived from
 * the path of the callback URL specified in the Clients object held within the Config object supplied in the
 * constructor.
 *
 * There is no requirement to use this handler rather than a SecurityHandler (and indeed where the same
 * callback URL is being potentially used for multiple authentication handlers it may muddy the waters) but it is supplied
 * as a convenience to anyone wanting to perform very simple indirect authentications.
 *
 * If there is a desire to use the same callback for multiple indirect authentications, it is recommended to explicitly
 * deploy a CallbackHandler for clarity.
 *
 * @author Jeremy Prime
 * @since 2.0.0
 */
public class CallbackDeployingPac4jAuthHandler extends SecurityHandler {

    private static final Logger LOG = LoggerFactory.getLogger(CallbackDeployingPac4jAuthHandler.class);

    // Consider coalescing the manager options into the handler options and then generating the manageroptions from them
    public CallbackDeployingPac4jAuthHandler(final Vertx vertx,
                                             final SessionStore sessionStore,
                                             final Config config,
                                             final Router router,
                                             final Pac4jAuthProvider authProvider,
                                             final SecurityHandlerOptions options,
                                             final CallbackHandlerOptions callbackOptions) {
        super(vertx, sessionStore, config, authProvider, options);
        // Other null checks performed by parent class
        CommonHelper.assertNotNull("router", router);
        CommonHelper.assertNotBlank("callbackUrl", config.getClients().getCallbackUrl());

        final URI uri;
        try {
            uri = new URI(config.getClients().getCallbackUrl());
        } catch (URISyntaxException e) {
            LOG.error(e.getMessage());
            throw toTechnicalException(e);
        }

        // Start manager verticle
        router.route(HttpMethod.GET, uri.getPath()).handler(authResultHandler(vertx, sessionStore, config, callbackOptions));
    }

    private Handler authResultHandler(final Vertx vertx,
                                                      final SessionStore sessionStore,
                                                      final Config config,
                                                      final CallbackHandlerOptions callbackOptions) {
        return new CallbackHandler(vertx, sessionStore,  config, callbackOptions);
    }

}