package de.blinkt.openvpn; import java.io.ByteArrayInputStream; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.security.cert.CertificateException; import java.security.cert.CertificateFactory; import java.security.cert.X509Certificate; import java.util.Arrays; import java.util.LinkedList; import java.util.Locale; import java.util.Vector; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.pm.Signature; import android.os.Build; import android.os.Parcel; import android.os.Parcelable; public class OpenVPN { public static LinkedList logbuffer; private static Vector logListener; private static Vector stateListener; private static Vector byteCountListener; private static String[] mBconfig; private static String mLaststatemsg=""; private static String mLaststate = "NOPROCESS"; private static int mLastStateresid=R.string.state_noprocess; private static long mlastByteCount[]={0,0,0,0}; static final int LEVEL_NONETWORK = 3; static final int LEVEL_NOTCONNECTED = 4; public static final int LEVEL_AUTH_FAILED = 5; static final int LEVEL_CONNECTING_SERVER_REPLIED = 1; static final int LEVEL_CONNECTING_NO_SERVER_REPLY_YET = 2; static final int LEVEL_CONNECTED = 0; public static final byte[] officalkey = {-58, -42, -44, -106, 90, -88, -87, -88, -52, -124, 84, 117, 66, 79, -112, -111, -46, 86, -37, 109}; public static final byte[] officaldebugkey = {-99, -69, 45, 71, 114, -116, 82, 66, -99, -122, 50, -70, -56, -111, 98, -35, -65, 105, 82, 43}; public static final byte[] amazonkey = {-116, -115, -118, -89, -116, -112, 120, 55, 79, -8, -119, -23, 106, -114, -85, -56, -4, 105, 26, -57}; private static int mLastLevel=LEVEL_NOTCONNECTED; static { logbuffer = new LinkedList(); logListener = new Vector(); stateListener = new Vector(); byteCountListener = new Vector(); logInformation(); } public static class LogItem implements Parcelable { public static final int ERROR = 1; public static final int INFO = 2; public static final int VERBOSE = 3; private Object [] mArgs = null; private String mMessage = null; private int mRessourceId; // Default log priority int mLevel = INFO; private long logtime = System.currentTimeMillis(); public LogItem(int ressourceId, Object[] args) { mRessourceId = ressourceId; mArgs = args; } @Override public int describeContents() { return 0; } @Override public void writeToParcel(Parcel dest, int flags) { dest.writeArray(mArgs); dest.writeString(mMessage); dest.writeInt(mRessourceId); dest.writeInt(mLevel); dest.writeLong(logtime); } public LogItem(Parcel in) { mArgs = in.readArray(Object.class.getClassLoader()); mMessage = in.readString(); mRessourceId = in.readInt(); mLevel = in.readInt(); logtime = in.readLong(); } public static final Parcelable.Creator CREATOR = new Parcelable.Creator() { public LogItem createFromParcel(Parcel in) { return new LogItem(in); } public LogItem[] newArray(int size) { return new LogItem[size]; } }; public LogItem(int loglevel,int ressourceId, Object[] args) { mRessourceId = ressourceId; mArgs = args; mLevel = loglevel; } public LogItem(String message) { mMessage = message; } public LogItem(int loglevel, String msg) { mLevel = loglevel; mMessage = msg; } public LogItem(int loglevel, int ressourceId) { mRessourceId =ressourceId; mLevel = loglevel; } public String getString(Context c) { if(mMessage !=null) { return mMessage; } else { if(c!=null) { if(mRessourceId==R.string.mobile_info) return getMobileInfoString(c); if(mArgs == null) return c.getString(mRessourceId); else return c.getString(mRessourceId,mArgs); } else { String str = String.format(Locale.ENGLISH,"Log (no context) resid %d", mRessourceId); if(mArgs !=null) for(Object o:mArgs) str += "|" + o.toString(); return str; } } } private String getMobileInfoString(Context c) { c.getPackageManager(); String apksign="error getting package signature"; String version="error getting version"; try { Signature raw = c.getPackageManager().getPackageInfo(c.getPackageName(), PackageManager.GET_SIGNATURES).signatures[0]; CertificateFactory cf = CertificateFactory.getInstance("X.509"); X509Certificate cert = (X509Certificate) cf.generateCertificate(new ByteArrayInputStream(raw.toByteArray())); MessageDigest md = MessageDigest.getInstance("SHA-1"); byte[] der = cert.getEncoded(); md.update(der); byte[] digest = md.digest(); if (Arrays.equals(digest, officalkey)) apksign = c.getString(R.string.official_build); else if (Arrays.equals(digest, officaldebugkey)) apksign = c.getString(R.string.debug_build); else if (Arrays.equals(digest, amazonkey)) apksign = "amazon version"; else apksign = c.getString(R.string.built_by,cert.getSubjectX500Principal().getName()); PackageInfo packageinfo = c.getPackageManager().getPackageInfo(c.getPackageName(), 0); version = packageinfo.versionName; } catch (NameNotFoundException e) { } catch (CertificateException e) { } catch (NoSuchAlgorithmException e) { } Object[] argsext = Arrays.copyOf(mArgs, mArgs.length+2); argsext[argsext.length-1]=apksign; argsext[argsext.length-2]=version; return c.getString(R.string.mobile_info_extended, argsext); } public long getLogtime() { return logtime; } } private static final int MAXLOGENTRIES = 500; public static final String MANAGMENT_PREFIX = "M:"; public interface LogListener { void newLog(LogItem logItem); } public interface StateListener { void updateState(String state, String logmessage, int localizedResId, int level); } public interface ByteCountListener { void updateByteCount(long in, long out, long diffin, long diffout); } synchronized static void logMessage(int level,String prefix, String message) { newlogItem(new LogItem(prefix + message)); } synchronized static void clearLog() { logbuffer.clear(); logInformation(); } private static void logInformation() { logInfo(R.string.mobile_info,Build.MODEL, Build.BOARD,Build.BRAND,Build.VERSION.SDK_INT); } public synchronized static void addLogListener(LogListener ll){ logListener.add(ll); } public synchronized static void removeLogListener(LogListener ll) { logListener.remove(ll); } public static void addByteCountListener(ByteCountListener bcl) { bcl.updateByteCount(mlastByteCount[0], mlastByteCount[1], mlastByteCount[2], mlastByteCount[3]); byteCountListener.add(bcl); } public static void removeByteCountListener(ByteCountListener bcl) { byteCountListener.remove(bcl); } public synchronized static void addStateListener(StateListener sl){ if(!stateListener.contains(sl)){ stateListener.add(sl); if(mLaststate!=null) sl.updateState(mLaststate, mLaststatemsg, mLastStateresid, mLastLevel); } } private static int getLocalizedState(String state){ if (state.equals("CONNECTING")) return R.string.state_connecting; else if (state.equals("WAIT")) return R.string.state_wait; else if (state.equals("AUTH")) return R.string.state_auth; else if (state.equals("GET_CONFIG")) return R.string.state_get_config; else if (state.equals("ASSIGN_IP")) return R.string.state_assign_ip; else if (state.equals("ADD_ROUTES")) return R.string.state_add_routes; else if (state.equals("CONNECTED")) return R.string.state_connected; else if (state.equals("DISCONNECTED")) return R.string.state_disconnected; else if (state.equals("RECONNECTING")) return R.string.state_reconnecting; else if (state.equals("EXITING")) return R.string.state_exiting; else if (state.equals("RESOLVE")) return R.string.state_resolve; else if (state.equals("TCP_CONNECT")) return R.string.state_tcp_connect; else return R.string.unknown_state; } private static int getLevel(String state){ String[] noreplyet = {"CONNECTING","WAIT", "RECONNECTING", "RESOLVE", "TCP_CONNECT"}; String[] reply = {"AUTH","GETCONFIG","ASSIGN_IP","ADD_ROUTES"}; String[] connected = {"CONNECTED"}; String[] notconnected = {"DISCONNECTED", "EXITING"}; for(String x:noreplyet) if(state.equals(x)) return LEVEL_CONNECTING_NO_SERVER_REPLY_YET; for(String x:reply) if(state.equals(x)) return LEVEL_CONNECTING_SERVER_REPLIED; for(String x:connected) if(state.equals(x)) return LEVEL_CONNECTED; for(String x:notconnected) if(state.equals(x)) return LEVEL_NOTCONNECTED; return -1; } public synchronized static void removeStateListener(StateListener sl) { stateListener.remove(sl); } synchronized public static LogItem[] getlogbuffer() { // The stoned way of java to return an array from a vector // brought to you by eclipse auto complete return (LogItem[]) logbuffer.toArray(new LogItem[logbuffer.size()]); } public static void logBuilderConfig(String[] bconfig) { mBconfig = bconfig; } public static void triggerLogBuilderConfig() { if(mBconfig==null) { logMessage(0, "", "No active interface"); } else { for (String item : mBconfig) { logMessage(0, "", item); } } } public static void updateStateString (String state, String msg) { int rid = getLocalizedState(state); int level = getLevel(state); updateStateString(state, msg, rid, level); } public synchronized static void updateStateString(String state, String msg, int resid, int level) { mLaststate= state; mLaststatemsg = msg; mLastStateresid = resid; mLastLevel = level; for (StateListener sl : stateListener) { sl.updateState(state,msg,resid,level); } } public static void logInfo(String message) { newlogItem(new LogItem(LogItem.INFO, message)); } public static void logInfo(int ressourceId, Object... args) { newlogItem(new LogItem(LogItem.INFO, ressourceId, args)); } private static void newlogItem(LogItem logItem) { logbuffer.addLast(logItem); if(logbuffer.size()>MAXLOGENTRIES) logbuffer.removeFirst(); for (LogListener ll : logListener) { ll.newLog(logItem); } } public static void logError(String msg) { newlogItem(new LogItem(LogItem.ERROR, msg)); } public static void logError(int ressourceId) { newlogItem(new LogItem(LogItem.ERROR, ressourceId)); } public static void logError(int ressourceId, Object... args) { newlogItem(new LogItem(LogItem.ERROR, ressourceId,args)); } public static void updateByteCount(long in, long out) { long lastIn = mlastByteCount[0]; long lastOut = mlastByteCount[1]; long diffin = in - lastIn; long diffout = out - lastOut; mlastByteCount = new long[] {in,out,diffin,diffout}; for(ByteCountListener bcl:byteCountListener){ bcl.updateByteCount(in, out, diffin,diffout); } } }