| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.camel.component.http4; |
| |
| import java.io.IOException; |
| |
| import org.apache.http.HttpException; |
| import org.apache.http.HttpRequest; |
| import org.apache.http.HttpRequestInterceptor; |
| import org.apache.http.auth.AuthScheme; |
| import org.apache.http.auth.AuthScope; |
| import org.apache.http.auth.AuthState; |
| import org.apache.http.auth.Credentials; |
| import org.apache.http.client.CredentialsProvider; |
| import org.apache.http.client.protocol.HttpClientContext; |
| import org.apache.http.protocol.HttpContext; |
| |
| public class PreemptiveAuthInterceptor implements HttpRequestInterceptor { |
| |
| public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { |
| AuthState authState = (AuthState) context.getAttribute(HttpClientContext.TARGET_AUTH_STATE); |
| // If no auth scheme avaialble yet, try to initialize it preemptively |
| if (authState.getAuthScheme() == null) { |
| AuthScheme authScheme = (AuthScheme) context.getAttribute("preemptive-auth"); |
| CredentialsProvider credsProvider = (CredentialsProvider) context.getAttribute(HttpClientContext.CREDS_PROVIDER); |
| if (authScheme != null) { |
| Credentials creds = credsProvider.getCredentials(AuthScope.ANY); |
| if (creds == null) { |
| throw new HttpException("No credentials for preemptive authentication"); |
| } |
| authState.update(authScheme, creds); |
| } |
| } |
| |
| } |
| } |