Enable support for app selection to work with VPN mode on Lollipop+

For now we will re-use/overload the app selection transproxy UI in Settings

res/xml/preferences.xml

@@ -50,7 +50,6 @@ android:defaultValue="false"
 android:key="pref_transparent"
 android:title="@string/pref_trans_proxy_title"
 android:summary="@string/pref_trans_proxy_summary"
-android:dependency="has_root"
 android:enabled="true"/>
 
 <CheckBoxPreference
@@ -58,7 +57,6 @@ android:defaultValue="false"
 android:key="pref_transparent_all"
 android:summary="@string/pref_transparent_all_summary"
 android:enabled="true" 
-android:dependency="has_root"
 android:title="@string/pref_transparent_all_title"/>
 
 <Preference
@@ -66,7 +64,6 @@ android:defaultValue=""
 android:key="pref_transparent_app_list"
 android:title="@string/pref_select_apps"
 android:summary="@string/pref_select_apps_summary"
-android:dependency="has_root"
 android:enabled="true"/>
 
 <CheckBoxPreference

src/org/torproject/android/OrbotMainActivity.java

@@ -965,7 +965,7 @@ public class OrbotMainActivity extends Activity
 
         	 
          })
-         .setNegativeButton(android.R.string.cancel, new Dialog.OnClickListener ()
+         .setNegativeButton(R.string.btn_cancel, new Dialog.OnClickListener ()
          {
 
 			@Override

src/org/torproject/android/settings/SettingsPreferences.java

@@ -6,6 +6,7 @@ package org.torproject.android.settings;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.os.Build;
 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
 import android.preference.EditTextPreference;
@@ -21,6 +22,7 @@ import info.guardianproject.util.Languages;
 import org.sufficientlysecure.rootcommands.RootCommands;
 import org.sufficientlysecure.rootcommands.Shell;
 import org.torproject.android.OrbotApp;
+import org.torproject.android.Prefs;
 import org.torproject.android.R;
 import org.torproject.android.service.TorServiceUtils;
 
@@ -97,21 +99,33 @@ public class SettingsPreferences
 
         });
 
+        
         prefTransProxyApps = findPreference("pref_transparent_app_list");
         prefTransProxyApps.setOnPreferenceClickListener(this);
-        prefTransProxyApps.setEnabled(prefCBTransProxy.isChecked()
-                && (!prefcBTransProxyAll.isChecked()));
-
         prefCBTransProxy.setOnPreferenceClickListener(this);
         prefcBTransProxyAll.setOnPreferenceClickListener(this);
-        prefcBTransProxyAll.setEnabled(prefCBTransProxy.isChecked());
-
         prefHiddenServices = (CheckBoxPreference) findPreference("pref_hs_enable");
         prefHiddenServices.setOnPreferenceClickListener(this);
-        prefHiddenServicesPorts = (EditTextPreference) findPreference("pref_hs_ports");
-        prefHiddenServicesPorts.setEnabled(prefHiddenServices.isChecked());
         prefHiddenServicesHostname = (EditTextPreference) findPreference("pref_hs_hostname");
+        
+        
+        prefCBTransProxy.setEnabled(prefRequestRoot.isChecked());
+        
+        prefcBTransProxyAll.setEnabled(prefCBTransProxy.isChecked());
+        
+        if (prefCBTransProxy.isChecked())
+        	prefTransProxyApps.setEnabled((!prefcBTransProxyAll.isChecked()));
+        
+        prefHiddenServicesPorts = (EditTextPreference) findPreference("pref_hs_ports");
         prefHiddenServicesHostname.setEnabled(prefHiddenServices.isChecked());
+        prefHiddenServicesPorts.setEnabled(prefHiddenServices.isChecked());
+        
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
+        {
+       	 	prefTransProxyApps.setEnabled(true);
+        }
+        
+        
     }
 
 	public boolean onPreferenceClick(Preference preference) {
@@ -134,6 +148,7 @@ public class SettingsPreferences
 						shell.close();
 						
 						prefRequestRoot.setChecked(true);
+						prefCBTransProxy.setEnabled(true);
 						
 					}
 					catch (Exception e)

src/org/torproject/android/vpn/OrbotVpnService.java

@@ -17,10 +17,13 @@
 package org.torproject.android.vpn;
 
 import java.net.InetAddress;
+import java.util.ArrayList;
 import java.util.Locale;
 
 import org.torproject.android.service.TorServiceConstants;
 import org.torproject.android.service.TorServiceUtils;
+import org.torproject.android.settings.AppManager;
+import org.torproject.android.settings.TorifiedApp;
 
 import android.annotation.TargetApi;
 import android.app.PendingIntent;
@@ -178,9 +181,6 @@ public class OrbotVpnService extends VpnService implements Handler.Callback {
     
     private void stopVPN ()
     {
-
-        Tun2Socks.Stop();
-        
         //stopSocksBypass ();
         
         if (mInterface != null){
@@ -202,8 +202,14 @@ public class OrbotVpnService extends VpnService implements Handler.Callback {
             }   
         }
         
+        Tun2Socks.Stop();
+        
         mThreadVPN = null;
         
+
+    //    Tun2Socks.Stop();
+        
+        
     }
 
     @Override
@@ -293,7 +299,24 @@ public class OrbotVpnService extends VpnService implements Handler.Callback {
     @TargetApi(Build.VERSION_CODES.LOLLIPOP)
 	private void doLollipopAppRouting (Builder builder) throws NameNotFoundException
     {    
-    	builder.addDisallowedApplication("org.torproject.android");   
+    	   
+        ArrayList<TorifiedApp> apps = AppManager.getApps(this, TorServiceUtils.getSharedPrefs(getApplicationContext()));
+    
+        boolean appAllowed = false;
+        
+        for (TorifiedApp app : apps)
+        {
+        	if (app.isTorified())
+        	{
+        		builder.addAllowedApplication(app.getUsername());
+        		appAllowed = true;
+        	}
+        	
+        }
+    
+        if (!appAllowed)
+        	builder.addDisallowedApplication(getPackageName());
+    
     }
     
     @Override