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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// 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.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 jodd.http.net;
import jodd.http.HttpConnection;
import jodd.http.HttpConnectionProvider;
import jodd.http.HttpException;
import jodd.http.HttpRequest;
import jodd.http.ProxyInfo;
import jodd.util.StringUtil;
import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
/**
* Socket factory for HTTP proxy.
*/
public class SocketHttpConnectionProvider implements HttpConnectionProvider {
protected ProxyInfo proxy = ProxyInfo.directProxy();
protected String secureEnabledProtocols = System.getProperty("https.protocols");
protected String sslProtocol = "TLSv1.1";
/**
* Defines proxy to use for created sockets.
*/
@Override
public void useProxy(final ProxyInfo proxyInfo) {
proxy = proxyInfo;
}
/**
* CSV of default enabled secured protocols. By default the value is
* read from system property https.protocols.
*/
public void setSecuredProtocols(final String secureEnabledProtocols) {
this.secureEnabledProtocols = secureEnabledProtocols;
}
/**
* Returns current SSL protocol used.
*/
public String getSslProtocol() {
return sslProtocol;
}
/**
* Sets default SSL protocol to use. One of "SSL", "TLSv1.2", "TLSv1.1", "TLSv1".
*/
public SocketHttpConnectionProvider setSslProtocol(final String sslProtocol) {
this.sslProtocol = sslProtocol;
return this;
}
/**
* Creates new connection from current {@link jodd.http.HttpRequest request}.
*
* @see #createSocket(String, int, int)
*/
@Override
public HttpConnection createHttpConnection(final HttpRequest httpRequest) throws IOException {
final SocketHttpConnection httpConnection;
final boolean https = httpRequest.protocol().equalsIgnoreCase("https");
if (https) {
SSLSocket sslSocket = createSSLSocket(
httpRequest.host(),
httpRequest.port(),
httpRequest.connectionTimeout(),
httpRequest.trustAllCertificates(),
httpRequest.verifyHttpsHost()
);
httpConnection = new SocketHttpSecureConnection(sslSocket);
}
else {
Socket socket = createSocket(httpRequest.host(), httpRequest.port(), httpRequest.connectionTimeout());
httpConnection = new SocketHttpConnection(socket);
}
// prepare connection config
httpConnection.setTimeout(httpRequest.timeout());
try {
// additional socket initialization
httpConnection.init();
}
catch (Throwable throwable) { // @wjw_add
httpConnection.close();
throw new HttpException(throwable);
}
return httpConnection;
}
/**
* Creates a socket using socket factory.
*/
protected Socket createSocket(final String host, final int port, final int connectionTimeout) throws IOException {
SocketFactory socketFactory = getSocketFactory(proxy, false, false);
if (connectionTimeout < 0) {
return socketFactory.createSocket(host, port);
}
else {
// creates unconnected socket
Socket socket = socketFactory.createSocket();
socket.connect(new InetSocketAddress(host, port), connectionTimeout);
return socket;
}
}
/**
* Creates a SSL socket. Enables default secure enabled protocols if specified.
*/
protected SSLSocket createSSLSocket(
final String host, final int port, final int connectionTimeout,
final boolean trustAll, final boolean verifyHttpsHost) throws IOException {
SocketFactory socketFactory = getSocketFactory(proxy, true, trustAll);
Socket socket;
if (connectionTimeout < 0) {
socket = socketFactory.createSocket(host, port);
}
else {
// creates unconnected socket
// unfortunately, this does not work always
// sslSocket = (SSLSocket) socketFactory.createSocket();
// sslSocket.connect(new InetSocketAddress(host, port), connectionTimeout);
//
// Note: SSLSocketFactory has several create() methods.
// Those that take arguments all connect immediately
// and have no options for specifying a connection timeout.
//
// So, we have to create a socket and connect it (with a
// connection timeout), then have the SSLSocketFactory wrap
// the already-connected socket.
//
socket = new Socket();
//sock.setSoTimeout(readTimeout);
socket.connect(new InetSocketAddress(host, port), connectionTimeout);
// continue to wrap this plain socket with ssl socket...
}
// wrap plain socket in an SSL socket
SSLSocket sslSocket;
if (socket instanceof SSLSocket) {
sslSocket = (SSLSocket) socket;
}
else {
if (socketFactory instanceof SSLSocketFactory) {
sslSocket = (SSLSocket) ((SSLSocketFactory)socketFactory).createSocket(socket, host, port, true);
}
else {
sslSocket = (SSLSocket) (getDefaultSSLSocketFactory(trustAll)).createSocket(socket, host, port, true);
}
}
// sslSocket is now ready
if (secureEnabledProtocols != null) {
final String[] values = StringUtil.splitc(secureEnabledProtocols, ',');
StringUtil.trimAll(values);
sslSocket.setEnabledProtocols(values);
}
// set SSL parameters to allow host name verifier
if (verifyHttpsHost) {
final SSLParameters sslParams = new SSLParameters();
sslParams.setEndpointIdentificationAlgorithm("HTTPS");
sslSocket.setSSLParameters(sslParams);
}
return sslSocket;
}
/**
* Returns default SSL socket factory allowing setting trust managers.
*/
protected SSLSocketFactory getDefaultSSLSocketFactory(final boolean trustAllCertificates) throws IOException {
if (trustAllCertificates) {
try {
SSLContext sc = SSLContext.getInstance(sslProtocol);
sc.init(null, TrustManagers.TRUST_ALL_CERTS, new java.security.SecureRandom());
return sc.getSocketFactory();
}
catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new IOException(e);
}
} else {
return (SSLSocketFactory) SSLSocketFactory.getDefault();
}
}
/**
* Returns socket factory based on proxy type and SSL requirements.
*/
protected SocketFactory getSocketFactory(final ProxyInfo proxy, final boolean ssl, final boolean trustAllCertificates) throws IOException {
switch (proxy.getProxyType()) {
case NONE:
if (ssl) {
return getDefaultSSLSocketFactory(trustAllCertificates);
}
else {
return SocketFactory.getDefault();
}
case HTTP:
return new HTTPProxySocketFactory(proxy);
case SOCKS4:
return new Socks4ProxySocketFactory(proxy);
case SOCKS5:
return new Socks5ProxySocketFactory(proxy);
default:
return null;
}
}
}
