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proxy: make it the caller's reponsibility to close the socket

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This makes the code shorter as there is now a single place where the
socket should be closed.
This commit is contained in:
Florian Schmaus 2019-11-18 17:44:08 +01:00
parent 9d626bf787
commit 7afd1fdf46
4 changed files with 123 additions and 151 deletions
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12
smack-core/src/main/java/org/jivesoftware/smack/proxy/ProxySocketConnection.java
View file

@ -1,6 +1,6 @@
/**
*
* Copyright 2015-2016 Florian Schmaus.
* Copyright 2015-2019 Florian Schmaus.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -21,6 +21,16 @@ import java.net.Socket;
public interface ProxySocketConnection {
/**
* Initiate a connection to the given host on the given port. Note that the caller is responsible for closing the
* socket in case this method throws.
*
* @param socket the socket to use to initiate the connection to the proxy.
* @param host the host to connect to.
* @param port the port to connect to.
* @param timeout the timeout in milliseconds.
* @throws IOException in case an I/O error occurs.
*/
void connect(Socket socket, String host, int port, int timeout)
throws IOException;

24
smack-core/src/main/java/org/jivesoftware/smack/proxy/Socks4ProxySocketConnection.java
View file

@ -39,16 +39,13 @@ public class Socks4ProxySocketConnection implements ProxySocketConnection {
@Override
public void connect(Socket socket, String host, int port, int timeout)
throws IOException {
InputStream in = null;
OutputStream out = null;
String proxy_host = proxy.getProxyAddress();
int proxy_port = proxy.getProxyPort();
String user = proxy.getProxyUsername();
try {
socket.connect(new InetSocketAddress(proxy_host, proxy_port), timeout);
in = socket.getInputStream();
out = socket.getOutputStream();
InputStream in = socket.getInputStream();
OutputStream out = socket.getOutputStream();
socket.setTcpNoDelay(true);
byte[] buf = new byte[1024];
@ -134,28 +131,11 @@ public class Socks4ProxySocketConnection implements ProxySocketConnection {
"server returns VN " + buf[0]);
}
if (buf[1] != 90) {
try {
socket.close();
}
catch (Exception eee) {
}
String message = "ProxySOCKS4: server returns CD " + buf[1];
throw new ProxyException(ProxyInfo.ProxyType.SOCKS4, message);
}
byte[] temp = new byte[2];
in.read(temp, 0, 2);
}
catch (RuntimeException e) {
throw e;
}
catch (Exception e) {
try {
socket.close();
}
catch (Exception eee) {
}
throw new ProxyException(ProxyInfo.ProxyType.SOCKS4, e.toString());
}
}
}

23
smack-core/src/main/java/org/jivesoftware/smack/proxy/Socks5ProxySocketConnection.java
View file

@ -22,9 +22,6 @@ import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.logging.Logger;
import org.jivesoftware.smack.util.CloseableUtil;
/**
* Socket factory for Socks5 proxy.
@ -32,7 +29,6 @@ import org.jivesoftware.smack.util.CloseableUtil;
* @author Atul Aggarwal
*/
public class Socks5ProxySocketConnection implements ProxySocketConnection {
private static final Logger LOGGER = Logger.getLogger(Socks5ProxySocketConnection.class.getName());
private final ProxyInfo proxy;
@ -43,17 +39,14 @@ public class Socks5ProxySocketConnection implements ProxySocketConnection {
@Override
public void connect(Socket socket, String host, int port, int timeout)
throws IOException {
InputStream in = null;
OutputStream out = null;
String proxy_host = proxy.getProxyAddress();
int proxy_port = proxy.getProxyPort();
String user = proxy.getProxyUsername();
String passwd = proxy.getProxyPassword();
try {
socket.connect(new InetSocketAddress(proxy_host, proxy_port), timeout);
in = socket.getInputStream();
out = socket.getOutputStream();
InputStream in = socket.getInputStream();
OutputStream out = socket.getOutputStream();
socket.setTcpNoDelay(true);
@ -142,7 +135,6 @@ public class Socks5ProxySocketConnection implements ProxySocketConnection {
System.arraycopy(passwordBytes, 0, buf, index,
passwd.length());
index += passwd.length();
out.write(buf, 0, index);
/*
@ -168,7 +160,6 @@ public class Socks5ProxySocketConnection implements ProxySocketConnection {
}
if (!check) {
CloseableUtil.maybeClose(socket, LOGGER);
throw new ProxyException(ProxyInfo.ProxyType.SOCKS5,
"fail in SOCKS5 proxy");
}
@ -253,7 +244,6 @@ public class Socks5ProxySocketConnection implements ProxySocketConnection {
fill(in, buf, 4);
if (buf[1] != 0) {
CloseableUtil.maybeClose(socket, LOGGER);
throw new ProxyException(ProxyInfo.ProxyType.SOCKS5,
"server returns " + buf[1]);
}
@ -272,15 +262,6 @@ public class Socks5ProxySocketConnection implements ProxySocketConnection {
default:
}
}
catch (RuntimeException e) {
throw e;
}
catch (Exception e) {
CloseableUtil.maybeClose(socket, LOGGER);
// TODO convert to IOException(e) when minimum Android API level is 9 or higher
throw new IOException(e.getLocalizedMessage());
}
}
private static void fill(InputStream in, byte[] buf, int len)
throws IOException {

1
smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
View file

@ -606,6 +606,7 @@ public class XMPPTCPConnection extends AbstractXMPPConnection {
try {
proxyInfo.getProxySocketConnection().connect(socket, host, port, timeout);
} catch (IOException e) {
CloseableUtil.maybeClose(socket, LOGGER);
hostAddress.setException(e);
failedAddresses.add(hostAddress);
continue;