Java tutorial
/** * 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. */ /** * The connectProxy() method implementation is inspired from * com.jcraft.jsch.ProxyHTTP available under a BSD style license (below). * * Copyright (c) 2002-2010 ymnk, JCraft,Inc. All rights reserved. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * 3. The names of the authors may not be used to endorse or promote products * derived from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, * INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.apache.camel.component.smpp; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.Socket; import javax.net.SocketFactory; import javax.net.ssl.SSLSocketFactory; import org.apache.camel.RuntimeCamelException; import org.apache.camel.util.IOHelper; import org.apache.commons.codec.binary.Base64; import org.jsmpp.session.connection.Connection; import org.jsmpp.session.connection.ConnectionFactory; import org.jsmpp.session.connection.socket.SocketConnection; /** * A Jsmpp ConnectionFactory that creates SSL Sockets. * * @version */ public final class SmppConnectionFactory implements ConnectionFactory { private SmppConfiguration config; private SmppConnectionFactory(SmppConfiguration config) { this.config = config; } public static SmppConnectionFactory getInstance(SmppConfiguration config) { return new SmppConnectionFactory(config); } public Connection createConnection(String host, int port) throws IOException { try { Socket socket; SocketFactory socketFactory; socketFactory = config.getUsingSSL() ? SSLSocketFactory.getDefault() : SocketFactory.getDefault(); if (config.getHttpProxyHost() != null) { socket = socketFactory.createSocket(config.getHttpProxyHost(), config.getHttpProxyPort()); connectProxy(host, port, socket); } else { socket = socketFactory.createSocket(host, port); } return new SocketConnection(socket); } catch (Exception e) { throw new IOException(e.getMessage()); } } private void connectProxy(String host, int port, Socket socket) throws IOException { try { OutputStream out = socket.getOutputStream(); InputStream in = socket.getInputStream(); String connectString = "CONNECT " + host + ":" + port + " HTTP/1.0\r\n"; out.write(connectString.getBytes()); String username = config.getHttpProxyUsername(); String password = config.getHttpProxyPassword(); if (username != null && password != null) { String usernamePassword = username + ":" + password; byte[] code = Base64.encodeBase64(usernamePassword.getBytes()); out.write("Proxy-Authorization: Basic ".getBytes()); out.write(code); out.write("\r\n".getBytes()); } out.write("\r\n".getBytes()); out.flush(); int ch = 0; BufferedReader reader = IOHelper.buffered(new InputStreamReader(in)); String response = reader.readLine(); if (response == null) { throw new RuntimeCamelException("Empty response to CONNECT request to host " + host + ":" + port); } String reason = "Unknown reason"; int code = -1; try { ch = response.indexOf(' '); int bar = response.indexOf(' ', ch + 1); code = Integer.parseInt(response.substring(ch + 1, bar)); reason = response.substring(bar + 1); } catch (NumberFormatException e) { throw new RuntimeCamelException("Invalid response to CONNECT request to host " + host + ":" + port + " - cannot parse code from response string: " + response); } if (code != 200) { throw new RuntimeCamelException("Proxy error: " + reason); } // read until empty line for (; response.length() > 0;) { response = reader.readLine(); if (response == null) { throw new RuntimeCamelException("Proxy error: reached end of stream"); } } } catch (RuntimeException re) { closeSocket(socket); throw re; } catch (Exception e) { closeSocket(socket); throw new RuntimeException("SmppConnectionFactory: " + e.getMessage()); } } private static void closeSocket(Socket s) { if (s != null) { try { s.close(); } catch (IOException e) { // ignore } } } }