Java tutorial
/* * Copyright 2013-2018 the original author or authors. * * 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 * * https://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.springframework.security.oauth2.client; import org.springframework.http.client.ClientHttpRequest; import org.springframework.security.oauth2.client.http.AccessTokenRequiredException; import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails; import org.springframework.security.oauth2.common.OAuth2AccessToken; import org.springframework.util.StringUtils; /** * @author Dave Syer * */ public class DefaultOAuth2RequestAuthenticator implements OAuth2RequestAuthenticator { @Override public void authenticate(OAuth2ProtectedResourceDetails resource, OAuth2ClientContext clientContext, ClientHttpRequest request) { OAuth2AccessToken accessToken = clientContext.getAccessToken(); if (accessToken == null) { throw new AccessTokenRequiredException(resource); } String tokenType = accessToken.getTokenType(); if (!StringUtils.hasText(tokenType)) { tokenType = OAuth2AccessToken.BEARER_TYPE; // we'll assume basic bearer token type if none is specified. } else if (tokenType.equalsIgnoreCase(OAuth2AccessToken.BEARER_TYPE)) { // gh-1346 tokenType = OAuth2AccessToken.BEARER_TYPE; // Ensure we use the correct syntax for the "Bearer" authentication scheme } request.getHeaders().set("Authorization", String.format("%s %s", tokenType, accessToken.getValue())); } }