Hi,
I'm trying to write a simple application that will utilize a Socks5
proxy server to connect to a web server (www.google.com). I am using
an instance of 'java.net.Proxy' of type 'SOCKS' in my application and
am using my implementation of ProxySelector. I can see from the
logcat output that my implementation of ProxySelector is being called
and will passback a list containing one Proxy instance. When I run
this code in the emulator, I consistently get a JNI check error
resulting in the VM aborting. I have attempted to run this
application with recent public releases of the SDK, all resulting in
the same behavior, JNI check failure and VM abort.
If anyone can shed some light on what I may be doing wrong in my code,
I would appreciate it.
Below find both the code and the logcat output:
=======
package com.test.socks;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Authenticator;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.PasswordAuthentication;
import java.net.Proxy;
import java.net.ProxySelector;
import java.net.SocketAddress;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class Socks5ProxyTest extends Activity {
private String TAG = Socks5ProxyTest.class.getSimpleName();
private String socks5ProxyHost = "192.168.1.26";
private int socks5ProxyPort = 1080;
private TextView txtView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtView = (TextView) findViewById(R.id.text_view);
ProxySelector.setDefault( new MyProxySelector());
Authenticator.setDefault( new MyAuthenticator());
}
/* (non-Javadoc)
* @see android.app.Activity#onDestroy()
*/
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}
/* (non-Javadoc)
* @see android.app.Activity#onPause()
*/
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
/* (non-Javadoc)
* @see android.app.Activity#onRestart()
*/
@Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
}
/* (non-Javadoc)
* @see android.app.Activity#onResume()
*/
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
/* (non-Javadoc)
* @see android.app.Activity#onStart()
*/
protected void onStart() {
super.onStart();
String webURL = "http://www.google.com";;
setStatus( "Setting up Http connection..." );
URL url = null;
HttpURLConnection httpUrlConn = null;
try {
url = new URL( webURL );
URLConnection urlConn = url.openConnection();
if( urlConn instanceof HttpURLConnection ) {
httpUrlConn = (HttpURLConnection) urlConn;
httpUrlConn.setAllowUserInteraction(true);
httpUrlConn.setUseCaches(false);
setStatus( "Connecting to: " + webURL );
httpUrlConn.connect();
if( httpUrlConn.getResponseCode() ==
HttpURLConnection.HTTP_OK ) {
setStatus( "Successfully connected to:
" + webURL );
InputStream inStr =
httpUrlConn.getInputStream();
if( inStr != null ) {
BufferedReader bufRdr = null;
try {
bufRdr = new
BufferedReader( new InputStreamReader( inStr ));
String responseLine =
null;
setStatus( "Reading
lines from response..." );
while( (responseLine =
bufRdr.readLine()) != null ) {
Log.i(TAG,
responseLine );
}
}
finally {
if( bufRdr != null ) {
setStatus(
"Closing body of response." );
bufRdr.close();
}
}
} else {
Log.e(TAG, "null input stream!"
);
}
} else {
Log.e(TAG,
httpUrlConn.getResponseMessage());
}
}
}
catch( MalformedURLException urlExc ) {
Log.e(TAG, urlExc.getMessage(), urlExc );
} catch (IOException ioExc) {
Log.e( TAG, ioExc.getMessage(), ioExc );
}
finally {
// Ensure we close the connection.
if( httpUrlConn != null ) {
setStatus( "Disconnecting from " + webURL );
httpUrlConn.disconnect();
}
}
}
/* (non-Javadoc)
* @see android.app.Activity#onStop()
*/
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
}
private void setStatus( final String status ) {
runOnUiThread( new Runnable() {
public void run() {
txtView.setText(status);
}
});
}
/**
* Provides an extension of <code>ProxySelector</code> for specifying
a proxy for
* a particular connection.
*
*/
class MyProxySelector extends ProxySelector {
private List<Proxy> proxies;
private final String TAG =
MyProxySelector.class.getSimpleName();
MyProxySelector() {
// Construct the list of proxies.
proxies = new ArrayList<Proxy>();
InetSocketAddress proxyAddress = new InetSocketAddress
( socks5ProxyHost, socks5ProxyPort );
proxies.add( new Proxy( Proxy.Type.SOCKS, proxyAddress
));
}
/* (non-Javadoc)
* @see java.net.ProxySelector#connectFailed(java.net.URI,
java.net.SocketAddress, java.io.IOException)
*/
@Override
public void connectFailed(URI uri, SocketAddress sa, IOException
ioe) {
Log.i(TAG, ": connectFailed: socket_address(" +
sa.toString() + ")
IOException(" +
ioe.getMessage() + ")" );
}
/* (non-Javadoc)
* @see java.net.ProxySelector#select(java.net.URI)
*/
@Override
public List<Proxy> select(URI uri) {
Log.i(TAG, ": select on URI(" + uri.toString() + ")." );
// Always return the same list.
return proxies;
}
}
/**
* An extension of <code>Authenticator</code> for performing
authentication.
*/
class MyAuthenticator extends Authenticator {
private final String TAG =
MyAuthenticator.class.getSimpleName();
MyAuthenticator() {
}
/* (non-Javadoc)
* @see java.net.Authenticator#getPasswordAuthentication()
*/
@Override
protected PasswordAuthentication getPasswordAuthentication() {
Log.i(TAG, "getPasswordAuthentication: " );
// TODO Auto-generated method stub
return super.getPasswordAuthentication();
}
/* (non-Javadoc)
* @see java.net.Authenticator#getRequestingURL()
*/
@Override
protected URL getRequestingURL() {
Log.i(TAG, "getRequestingURL: " );
// TODO Auto-generated method stub
return super.getRequestingURL();
}
/* (non-Javadoc)
* @see java.net.Authenticator#getRequestorType()
*/
@Override
protected RequestorType getRequestorType() {
Log.i(TAG, "getRequestorType: " );
// TODO Auto-generated method stub
return super.getRequestorType();
}
}
==========
LogCat Output:
I/ActivityManager( 49): Starting activity: Intent
{ action=android.intent.action.MAIN categories=
{android.intent.category.LAUNCHER} flags=0x10200000 comp=
{com.test.socks/com.test.socks.Socks5ProxyTest} }
I/ActivityManager( 49): Start proc com.test.socks for activity
com.test.socks/.Socks5ProxyTest: pid=284 uid=10024 gids={3003}
I/jdwp ( 284): received file descriptor 20 from ADB
I/MyProxySelector( 284): : select on URI(http://www.google.com).
W/dalvikvm( 284): JNI WARNING: inst fieldID 0x410653e4 not valid for
class [B
I/dalvikvm( 284): "main" prio=5 tid=3 NATIVE
I/dalvikvm( 284): | group="main" sCount=0 dsCount=0 s=0
obj=0x400103e8
I/dalvikvm( 284): | sysTid=284 nice=0 sched=0/0 handle=-1096950628
I/dalvikvm( 284): at
org.apache.harmony.luni.platform.OSNetworkSystem.connectSocketImpl
(Native Method)
I/dalvikvm( 284): at
org.apache.harmony.luni.platform.OSNetworkSystem.connect
(OSNetworkSystem.java:119)
I/dalvikvm( 284): at
org.apache.harmony.luni.net.PlainSocketImpl.socksConnect
(PlainSocketImpl.java:380)
I/dalvikvm( 284): at
org.apache.harmony.luni.net.PlainSocketImpl.connect
(PlainSocketImpl.java:224)
I/dalvikvm( 284): at
org.apache.harmony.luni.net.PlainSocketImpl.connect
(PlainSocketImpl.java:521)
I/dalvikvm( 284): at java.net.Socket.connect(Socket.java:945)
I/dalvikvm( 284): at
org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>
(HttpConnection.java:61)
I/dalvikvm( 284): at
org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionManager
$ConnectionPool.getHttpConnection(HttpConnectionManager.java:145)
I/dalvikvm( 284): at
org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionManager.getConnection
(HttpConnectionManager.java:73)
I/dalvikvm( 284): at
org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.getHTTPConnection
(HttpURLConnection.java:802)
I/dalvikvm( 284): at
org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.connect
(HttpURLConnection.java:774)
I/dalvikvm( 284): at com.test.socks.Socks5ProxyTest.onStart
(Socks5ProxyTest.java:103)
I/dalvikvm( 284): at android.app.Instrumentation.callActivityOnStart
(Instrumentation.java:1204)
I/dalvikvm( 284): at android.app.Activity.performStart
(Activity.java:3317)
I/dalvikvm( 284): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2113)
I/dalvikvm( 284): at android.app.ActivityThread.handleLaunchActivity
(ActivityThread.java:2157)
I/dalvikvm( 284): at android.app.ActivityThread.access$1800
(ActivityThread.java:112)
I/dalvikvm( 284): at android.app.ActivityThread$H.handleMessage
(ActivityThread.java:1581)
I/dalvikvm( 284): at android.os.Handler.dispatchMessage
(Handler.java:88)
I/dalvikvm( 284): at android.os.Looper.loop(Looper.java:123)
I/dalvikvm( 284): at android.app.ActivityThread.main
(ActivityThread.java:3739)
I/dalvikvm( 284): at java.lang.reflect.Method.invokeNative(Native
Method)
I/dalvikvm( 284): at java.lang.reflect.Method.invoke(Method.java:
515)
I/dalvikvm( 284): at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:739)
I/dalvikvm( 284): at com.android.internal.os.ZygoteInit.main
(ZygoteInit.java:497)
I/dalvikvm( 284): at dalvik.system.NativeStart.main(Native Method)
I/dalvikvm( 284):
E/dalvikvm( 284): VM aborting
I/DEBUG ( 20): *** *** *** *** *** *** *** *** *** *** *** *** ***
*** *** ***
I/DEBUG ( 20): Build fingerprint: 'generic/sdk/generic/:1.1/
PLATFORM-1_0/129975:sdk/test-keys'
I/DEBUG ( 20): pid: 284, tid: 284 >>> com.test.socks <<<
I/DEBUG ( 20): signal 11 (SIGSEGV), fault addr deadd00d
I/DEBUG ( 20): r0 00000320 r1 0000000c r2 0000000c r3 00000026
I/DEBUG ( 20): r4 deadd00d r5 ad07e6f8 r6 4000d010 r7 43429a00
I/DEBUG ( 20): r8 be9dd608 r9 41049aec 10 41049adc fp 00000000
I/DEBUG ( 20): ip ad07e7d4 sp be9dd548 lr afe1209d pc
ad038a32 cpsr 20000030
I/DEBUG ( 20): #00 pc ad038a32 /system/lib/libdvm.so
I/DEBUG ( 20): #01 pc ad02bc00 /system/lib/libdvm.so
I/DEBUG ( 20): #02 pc ad02bc56 /system/lib/libdvm.so
I/DEBUG ( 20): #03 pc ad02dfa2 /system/lib/libdvm.so
I/DEBUG ( 20): #04 pc ad21167e /system/lib/
libnativehelper.so
I/DEBUG ( 20): #05 pc ad214aba /system/lib/
libnativehelper.so
I/DEBUG ( 20): #06 pc ad00d2f4 /system/lib/libdvm.so
I/DEBUG ( 20): stack:
I/DEBUG ( 20): be9dd508 00000005
I/DEBUG ( 20): be9dd50c 00000000
I/DEBUG ( 20): be9dd510 afe35c4c /system/lib/libc.so
I/DEBUG ( 20): be9dd514 afe35ca0 /system/lib/libc.so
I/DEBUG ( 20): be9dd518 00000000
I/DEBUG ( 20): be9dd51c afe1209d /system/lib/libc.so
I/DEBUG ( 20): be9dd520 0000bb00 [heap]
I/DEBUG ( 20): be9dd524 afe11249 /system/lib/libc.so
I/DEBUG ( 20): be9dd528 43429a00
I/DEBUG ( 20): be9dd52c ad07e6f8 /system/lib/libdvm.so
I/DEBUG ( 20): be9dd530 ad07e6f8 /system/lib/libdvm.so
I/DEBUG ( 20): be9dd534 4000d010
I/DEBUG ( 20): be9dd538 43429a00
I/DEBUG ( 20): be9dd53c afe112ad /system/lib/libc.so
I/DEBUG ( 20): be9dd540 df002777
I/DEBUG ( 20): be9dd544 e3a070ad
I/DEBUG ( 20): #00 be9dd548 410653e4
I/DEBUG ( 20): be9dd54c ad02bc03 /system/lib/libdvm.so
I/DEBUG ( 20): #01 be9dd550 ad0660b0 /system/lib/libdvm.so
I/DEBUG ( 20): be9dd554 ad02bc59 /system/lib/libdvm.so
I/ActivityManager( 49): Process com.test.socks (pid 284) has died.
D/Zygote ( 23): Process 284 terminated by signal (11)
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