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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2020 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wildfly.security.auth.client.spi;

import org.jboss.resteasy.client.jaxrs.spi.ClientConfigException;
import org.jboss.resteasy.client.jaxrs.spi.ClientConfigProvider;
import org.kohsuke.MetaInfServices;
import org.wildfly.security.auth.callback.CredentialCallback;
import org.wildfly.security.auth.client.AuthenticationContext;
import org.wildfly.security.auth.client.AuthenticationContextConfigurationClient;
import org.wildfly.security.auth.client._private.ElytronMessages;
import org.wildfly.security.credential.BearerTokenCredential;

import javax.net.ssl.SSLContext;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import java.io.IOException;
import java.net.URI;
import java.security.AccessController;
import java.security.GeneralSecurityException;
import java.security.PrivilegedAction;

/**
 * RESTEasy client provider implementation.
 *
 * @author [email protected]
 */
@MetaInfServices(value = ClientConfigProvider.class)
public class RESTEasyClientConfigProviderImpl implements ClientConfigProvider {

   static final AuthenticationContextConfigurationClient AUTH_CONTEXT_CLIENT = AccessController.doPrivileged((PrivilegedAction) AuthenticationContextConfigurationClient::new);

   @Override
   public SSLContext getSSLContext(URI uri) throws ClientConfigException {
      try {
         return AUTH_CONTEXT_CLIENT.getSSLContext(uri, AuthenticationContext.captureCurrent());
      } catch (GeneralSecurityException e) {
         throw new ClientConfigException(ElytronMessages.log.unableToObtainSslContext());
      }
   }

   @Override
   public String getUsername(URI uri) throws ClientConfigException {
      final CallbackHandler callbackHandler = AUTH_CONTEXT_CLIENT.getCallbackHandler(AUTH_CONTEXT_CLIENT.getAuthenticationConfiguration(uri, AuthenticationContext.captureCurrent()));
      NameCallback nameCallback = new NameCallback("user name");
      try {
         callbackHandler.handle(new Callback[]{nameCallback});
         return nameCallback.getName();
      } catch (IOException | UnsupportedCallbackException e) {
         throw new ClientConfigException(ElytronMessages.log.nameCallbackHandlingWasUnsuccessful());
      }
   }

   @Override
   public String getPassword(URI uri) throws ClientConfigException {
      final CallbackHandler callbackHandler = AUTH_CONTEXT_CLIENT.getCallbackHandler(AUTH_CONTEXT_CLIENT.getAuthenticationConfiguration(uri, AuthenticationContext.captureCurrent()));
      PasswordCallback passwordCallback = new PasswordCallback("password", false);
      try {
         callbackHandler.handle(new Callback[]{passwordCallback});
         char[] password = passwordCallback.getPassword();
         if (password == null) {
            return null;
         }
         return new String(password);
      } catch (IOException | UnsupportedCallbackException e) {
         throw new ClientConfigException(ElytronMessages.log.passwordCallbackHandlingWasUnsuccessful());
      }
   }

   @Override
   public String getBearerToken(URI uri) throws ClientConfigException {
      final CallbackHandler callbackHandler = AUTH_CONTEXT_CLIENT.getCallbackHandler(AUTH_CONTEXT_CLIENT.getAuthenticationConfiguration(uri, AuthenticationContext.captureCurrent()));
      final CredentialCallback credentialCallback = new CredentialCallback(BearerTokenCredential.class);
      try {
         callbackHandler.handle(new Callback[]{credentialCallback});
         BearerTokenCredential token = credentialCallback.getCredential(BearerTokenCredential.class);
         if (token == null) {
            return null;
         }
         return token.getToken();
      } catch (IOException | UnsupportedCallbackException e) {
         throw new ClientConfigException(ElytronMessages.log.passwordCallbackHandlingWasUnsuccessful());
      }
   }
}