Java tutorial
package com.cloudhopper.httpclient.util; /* * #%L * ch-httpclient-util * %% * Copyright (C) 2012 - 2013 Cloudhopper by Twitter * %% * 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. * #L% */ import java.io.IOException; import java.security.cert.CertificateException; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import org.apache.http.HttpEntity; import org.apache.http.HttpException; import org.apache.http.HttpHost; import org.apache.http.HttpRequest; import org.apache.http.HttpRequestInterceptor; import org.apache.http.HttpResponse; 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.auth.UsernamePasswordCredentials; import org.apache.http.client.CredentialsProvider; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.protocol.ClientContext; import org.apache.http.conn.scheme.PlainSocketFactory; import org.apache.http.conn.scheme.Scheme; import org.apache.http.conn.ssl.SSLSocketFactory; import org.apache.http.entity.StringEntity; import org.apache.http.impl.auth.BasicScheme; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.protocol.BasicHttpContext; import org.apache.http.protocol.ExecutionContext; import org.apache.http.protocol.HttpContext; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * * @author joelauer */ public class HttpSender { private static final Logger logger = LoggerFactory.getLogger(HttpSender.class); static public Response postXml(String url, String username, String password, String requestXml) throws Exception { // // trust any SSL connection // TrustManager easyTrustManager = new X509TrustManager() { public void checkClientTrusted(java.security.cert.X509Certificate[] arg0, String arg1) throws CertificateException { // allow all } public void checkServerTrusted(java.security.cert.X509Certificate[] arg0, String arg1) throws CertificateException { // allow all } public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } }; Scheme http = new Scheme("http", PlainSocketFactory.getSocketFactory(), 80); SSLContext sslcontext = SSLContext.getInstance("TLS"); sslcontext.init(null, new TrustManager[] { easyTrustManager }, null); SSLSocketFactory sf = new SSLSocketFactory(sslcontext); sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER); Scheme https = new Scheme("https", sf, 443); //SchemeRegistry sr = new SchemeRegistry(); //sr.register(http); //sr.register(https); // create and initialize scheme registry //SchemeRegistry schemeRegistry = new SchemeRegistry(); //schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80)); // create an HttpClient with the ThreadSafeClientConnManager. // This connection manager must be used if more than one thread will // be using the HttpClient. //ThreadSafeClientConnManager cm = new ThreadSafeClientConnManager(schemeRegistry); //cm.setMaxTotalConnections(1); DefaultHttpClient client = new DefaultHttpClient(); client.getConnectionManager().getSchemeRegistry().register(https); HttpPost post = new HttpPost(url); StringEntity postEntity = new StringEntity(requestXml, "ISO-8859-1"); postEntity.setContentType("text/xml; charset=\"ISO-8859-1\""); post.addHeader("SOAPAction", "\"\""); post.setEntity(postEntity); long start = System.currentTimeMillis(); client.getCredentialsProvider().setCredentials(new AuthScope(null, AuthScope.ANY_PORT), new UsernamePasswordCredentials(username, password)); BasicHttpContext localcontext = new BasicHttpContext(); // Generate BASIC scheme object and stick it to the local // execution context BasicScheme basicAuth = new BasicScheme(); localcontext.setAttribute("preemptive-auth", basicAuth); // Add as the first request interceptor client.addRequestInterceptor(new PreemptiveAuth(), 0); HttpResponse httpResponse = client.execute(post, localcontext); HttpEntity responseEntity = httpResponse.getEntity(); Response rsp = new Response(); // set the status line and reason rsp.statusCode = httpResponse.getStatusLine().getStatusCode(); rsp.statusLine = httpResponse.getStatusLine().getReasonPhrase(); // get an input stream rsp.body = EntityUtils.toString(responseEntity); // When HttpClient instance is no longer needed, // shut down the connection manager to ensure // immediate deallocation of all system resources client.getConnectionManager().shutdown(); return rsp; } static class PreemptiveAuth implements HttpRequestInterceptor { public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { AuthState authState = (AuthState) context.getAttribute(ClientContext.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(ClientContext.CREDS_PROVIDER); HttpHost targetHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST); if (authScheme != null) { Credentials creds = credsProvider .getCredentials(new AuthScope(targetHost.getHostName(), targetHost.getPort())); if (creds == null) { throw new HttpException("No credentials for preemptive authentication"); } authState.setAuthScheme(authScheme); authState.setCredentials(creds); } } } } static public class Response { public int statusCode; public String statusLine; public String body; } }