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/*
* Copyright (c) 2012-2016 Arne Schwabe
* Distributed under the GNU GPL v2 with additional terms. For full terms see the file doc/LICENSE.txt
*/
package de.blinkt.openvpn.core;
import android.annotation.SuppressLint;
import android.util.Log;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.LinkedList;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import de.blinkt.openvpn.R;
public class OpenVPNThread implements Runnable {
private static final String DUMP_PATH_STRING = "Dump path: ";
@SuppressLint("SdCardPath")
private static final String TAG = "OpenVPN";
// 1380308330.240114 18000002 Send to HTTP proxy: 'X-Online-Host: bla.blabla.com'
private static final Pattern LOG_PATTERN = Pattern.compile("(\\d+).(\\d+) ([0-9a-f])+ (.*)");
public static final int M_FATAL = (1 << 4);
public static final int M_NONFATAL = (1 << 5);
public static final int M_WARN = (1 << 6);
public static final int M_DEBUG = (1 << 7);
private String[] mArgv;
private Process mProcess;
private String mNativeDir;
private String mTmpDir;
private OpenVPNService mService;
private String mDumpPath;
private boolean mNoProcessExitStatus = false;
public OpenVPNThread(OpenVPNService service, String[] argv, String nativelibdir, String tmpdir) {
mArgv = argv;
mNativeDir = nativelibdir;
mTmpDir = tmpdir;
mService = service;
}
public void stopProcess() {
mProcess.destroy();
}
void setReplaceConnection()
{
mNoProcessExitStatus=true;
}
@Override
public void run() {
try {
Log.i(TAG, "Starting openvpn");
startOpenVPNThreadArgs(mArgv);
Log.i(TAG, "OpenVPN process exited");
} catch (Exception e) {
VpnStatus.logException("Starting OpenVPN Thread", e);
Log.e(TAG, "OpenVPNThread Got " + e.toString());
} finally {
int exitvalue = 0;
try {
if (mProcess != null)
exitvalue = mProcess.waitFor();
} catch (IllegalThreadStateException ite) {
VpnStatus.logError("Illegal Thread state: " + ite.getLocalizedMessage());
} catch (InterruptedException ie) {
VpnStatus.logError("InterruptedException: " + ie.getLocalizedMessage());
}
if (exitvalue != 0) {
VpnStatus.logError("Process exited with exit value " + exitvalue);
}
if (!mNoProcessExitStatus)
VpnStatus.updateStateString("NOPROCESS", "No process running.", R.string.state_noprocess, ConnectionStatus.LEVEL_NOTCONNECTED);
if (mDumpPath != null) {
try {
BufferedWriter logout = new BufferedWriter(new FileWriter(mDumpPath + ".log"));
SimpleDateFormat timeformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.GERMAN);
for (LogItem li : VpnStatus.getlogbuffer()) {
String time = timeformat.format(new Date(li.getLogtime()));
logout.write(time + " " + li.getString(mService) + "\n");
}
logout.close();
VpnStatus.logError(R.string.minidump_generated);
} catch (IOException e) {
VpnStatus.logError("Writing minidump log: " + e.getLocalizedMessage());
}
}
if (!mNoProcessExitStatus)
mService.openvpnStopped();
Log.i(TAG, "Exiting");
}
}
private void startOpenVPNThreadArgs(String[] argv) {
LinkedList<String> argvlist = new LinkedList<String>();
Collections.addAll(argvlist, argv);
ProcessBuilder pb = new ProcessBuilder(argvlist);
// Hack O rama
String lbpath = genLibraryPath(argv, pb);
pb.environment().put("LD_LIBRARY_PATH", lbpath);
pb.environment().put("TMPDIR", mTmpDir);
pb.redirectErrorStream(true);
try {
mProcess = pb.start();
// Close the output, since we don't need it
mProcess.getOutputStream().close();
InputStream in = mProcess.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
while (true) {
String logline = br.readLine();
if (logline == null)
return;
if (logline.startsWith(DUMP_PATH_STRING))
mDumpPath = logline.substring(DUMP_PATH_STRING.length());
Matcher m = LOG_PATTERN.matcher(logline);
if (m.matches()) {
int flags = Integer.parseInt(m.group(3), 16);
String msg = m.group(4);
int logLevel = flags & 0x0F;
VpnStatus.LogLevel logStatus = VpnStatus.LogLevel.INFO;
if ((flags & M_FATAL) != 0)
logStatus = VpnStatus.LogLevel.ERROR;
else if ((flags & M_NONFATAL) != 0)
logStatus = VpnStatus.LogLevel.WARNING;
else if ((flags & M_WARN) != 0)
logStatus = VpnStatus.LogLevel.WARNING;
else if ((flags & M_DEBUG) != 0)
logStatus = VpnStatus.LogLevel.VERBOSE;
if (msg.startsWith("MANAGEMENT: CMD"))
logLevel = Math.max(4, logLevel);
VpnStatus.logMessageOpenVPN(logStatus, logLevel, msg);
VpnStatus.addExtraHints(msg);
} else {
VpnStatus.logInfo("P:" + logline);
}
if (Thread.interrupted()) {
throw new InterruptedException("OpenVpn process was killed form java code");
}
}
} catch (InterruptedException | IOException e) {
VpnStatus.logException("Error reading from output of OpenVPN process", e);
stopProcess();
}
}
private String genLibraryPath(String[] argv, ProcessBuilder pb) {
// Hack until I find a good way to get the real library path
String applibpath = argv[0].replaceFirst("/cache/.*$", "/lib");
String lbpath = pb.environment().get("LD_LIBRARY_PATH");
if (lbpath == null)
lbpath = applibpath;
else
lbpath = applibpath + ":" + lbpath;
if (!applibpath.equals(mNativeDir)) {
lbpath = mNativeDir + ":" + lbpath;
}
return lbpath;
}
}
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