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/*
* 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.InetSocketAddress;
import java.net.Socket;
import java.util.Base64;
import java.util.Map;
import javax.net.SocketFactory;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.util.IOHelper;
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.
*/
public final class SmppConnectionFactory implements ConnectionFactory {
private final SmppConfiguration config;
private SmppConnectionFactory(SmppConfiguration config) {
this.config = config;
}
public static SmppConnectionFactory getInstance(SmppConfiguration config) {
return new SmppConnectionFactory(config);
}
@Override
public Connection createConnection(String host, int port) throws IOException {
try {
Socket socket;
SocketFactory socketFactory;
socketFactory = config.isUsingSSL() && config.getHttpProxyHost() == null
? SSLSocketFactory
.getDefault()
: SocketFactory.getDefault();
if (config.getHttpProxyHost() != null) {
// setup the proxy tunnel
socket = socketFactory.createSocket();
// jsmpp uses enquire link timer as socket read timeout, so also use it to establish the initial connection
socket.connect(new InetSocketAddress(config.getHttpProxyHost(), config.getHttpProxyPort()),
config.getEnquireLinkTimer());
connectProxy(host, port, socket);
} else {
socket = socketFactory.createSocket();
// jsmpp uses enquire link timer as socket read timeout, so also use it to establish the initial connection
socket.connect(new InetSocketAddress(host, port), config.getEnquireLinkTimer());
}
if (config.isUsingSSL() && config.getHttpProxyHost() != null) {
// Init the SSL socket which is based on the proxy socket
SSLSocketFactory sslSocketFactory = (SSLSocketFactory) SSLSocketFactory.getDefault();
SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket(socket, host, port, true);
sslSocket.startHandshake();
socket = sslSocket;
}
return new SocketConnection(socket);
} catch (Exception e) {
throw new IOException(e.getMessage(), e);
}
}
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.getEncoder().encode(usernamePassword.getBytes());
out.write("Proxy-Authorization: Basic ".getBytes());
out.write(code);
out.write("\r\n".getBytes());
}
Map proxyHeaders = config.getProxyHeaders();
if (proxyHeaders != null) {
for (Map.Entry entry : proxyHeaders.entrySet()) {
out.write((entry.getKey() + ": " + entry.getValue()).getBytes());
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;
int code;
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 RuntimeCamelException("SmppConnectionFactory: " + e.getMessage(), e);
}
}
private static void closeSocket(Socket s) {
if (s != null) {
try {
s.close();
} catch (IOException e) {
// ignore
}
}
}
}
