Java tutorial
package eu.faircode.netguard; /* This file is part of NetGuard. NetGuard is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. NetGuard is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with NetGuard. If not, see <http://www.gnu.org/licenses/>. Copyright 2015-2017 by Marcel Bokhorst (M66B) */ import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.database.Cursor; import android.net.Uri; import android.os.AsyncTask; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.NavUtils; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.SearchView; import android.support.v7.widget.SwitchCompat; import android.text.TextUtils; import android.util.Log; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.CompoundButton; import android.widget.FilterQueryProvider; import android.widget.ListView; import android.widget.PopupMenu; import android.widget.TextView; import android.widget.Toast; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream; import java.net.InetAddress; import java.net.UnknownHostException; import java.text.SimpleDateFormat; import java.util.Date; public class ActivityLog extends AppCompatActivity implements SharedPreferences.OnSharedPreferenceChangeListener { private static final String TAG = "NetGuard.Log"; private boolean running = false; private ListView lvLog; private AdapterLog adapter; private MenuItem menuSearch = null; private boolean live; private boolean resolve; private boolean organization; private InetAddress vpn4 = null; private InetAddress vpn6 = null; private static final int REQUEST_PCAP = 1; private DatabaseHelper.LogChangedListener listener = new DatabaseHelper.LogChangedListener() { @Override public void onChanged() { runOnUiThread(new Runnable() { @Override public void run() { updateAdapter(); } }); } }; @Override protected void onCreate(Bundle savedInstanceState) { Util.setTheme(this); super.onCreate(savedInstanceState); setContentView(R.layout.logging); running = true; // Action bar View actionView = getLayoutInflater().inflate(R.layout.actionlog, null, false); SwitchCompat swEnabled = actionView.findViewById(R.id.swEnabled); getSupportActionBar().setDisplayShowCustomEnabled(true); getSupportActionBar().setCustomView(actionView); getSupportActionBar().setTitle(R.string.menu_log); getSupportActionBar().setDisplayHomeAsUpEnabled(true); // Get settings final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); resolve = prefs.getBoolean("resolve", false); organization = prefs.getBoolean("organization", false); boolean log = prefs.getBoolean("log", false); // Show disabled message TextView tvDisabled = findViewById(R.id.tvDisabled); tvDisabled.setVisibility(log ? View.GONE : View.VISIBLE); // Set enabled switch swEnabled.setChecked(log); swEnabled.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { prefs.edit().putBoolean("log", isChecked).apply(); } }); // Listen for preference changes prefs.registerOnSharedPreferenceChangeListener(this); lvLog = findViewById(R.id.lvLog); boolean udp = prefs.getBoolean("proto_udp", true); boolean tcp = prefs.getBoolean("proto_tcp", true); boolean other = prefs.getBoolean("proto_other", true); boolean allowed = prefs.getBoolean("traffic_allowed", true); boolean blocked = prefs.getBoolean("traffic_blocked", true); adapter = new AdapterLog(this, DatabaseHelper.getInstance(this).getLog(udp, tcp, other, allowed, blocked), resolve, organization); adapter.setFilterQueryProvider(new FilterQueryProvider() { public Cursor runQuery(CharSequence constraint) { return DatabaseHelper.getInstance(ActivityLog.this).searchLog(constraint.toString()); } }); lvLog.setAdapter(adapter); try { vpn4 = InetAddress.getByName(prefs.getString("vpn4", "10.1.10.1")); vpn6 = InetAddress.getByName(prefs.getString("vpn6", "fd00:1:fd00:1:fd00:1:fd00:1")); } catch (UnknownHostException ex) { Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex)); } lvLog.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { PackageManager pm = getPackageManager(); Cursor cursor = (Cursor) adapter.getItem(position); long time = cursor.getLong(cursor.getColumnIndex("time")); int version = cursor.getInt(cursor.getColumnIndex("version")); int protocol = cursor.getInt(cursor.getColumnIndex("protocol")); final String saddr = cursor.getString(cursor.getColumnIndex("saddr")); final int sport = (cursor.isNull(cursor.getColumnIndex("sport")) ? -1 : cursor.getInt(cursor.getColumnIndex("sport"))); final String daddr = cursor.getString(cursor.getColumnIndex("daddr")); final int dport = (cursor.isNull(cursor.getColumnIndex("dport")) ? -1 : cursor.getInt(cursor.getColumnIndex("dport"))); final String dname = cursor.getString(cursor.getColumnIndex("dname")); final int uid = (cursor.isNull(cursor.getColumnIndex("uid")) ? -1 : cursor.getInt(cursor.getColumnIndex("uid"))); int allowed = (cursor.isNull(cursor.getColumnIndex("allowed")) ? -1 : cursor.getInt(cursor.getColumnIndex("allowed"))); // Get external address InetAddress addr = null; try { addr = InetAddress.getByName(daddr); } catch (UnknownHostException ex) { Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex)); } String ip; int port; if (addr.equals(vpn4) || addr.equals(vpn6)) { ip = saddr; port = sport; } else { ip = daddr; port = dport; } // Build popup menu PopupMenu popup = new PopupMenu(ActivityLog.this, findViewById(R.id.vwPopupAnchor)); popup.inflate(R.menu.log); // Application name if (uid >= 0) popup.getMenu().findItem(R.id.menu_application) .setTitle(TextUtils.join(", ", Util.getApplicationNames(uid, ActivityLog.this))); else popup.getMenu().removeItem(R.id.menu_application); // Destination IP popup.getMenu().findItem(R.id.menu_protocol) .setTitle(Util.getProtocolName(protocol, version, false)); // Whois final Intent lookupIP = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.tcpiputils.com/whois-lookup/" + ip)); if (pm.resolveActivity(lookupIP, 0) == null) popup.getMenu().removeItem(R.id.menu_whois); else popup.getMenu().findItem(R.id.menu_whois).setTitle(getString(R.string.title_log_whois, ip)); // Lookup port final Intent lookupPort = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.speedguide.net/port.php?port=" + port)); if (port <= 0 || pm.resolveActivity(lookupPort, 0) == null) popup.getMenu().removeItem(R.id.menu_port); else popup.getMenu().findItem(R.id.menu_port).setTitle(getString(R.string.title_log_port, port)); if (!prefs.getBoolean("filter", false)) { popup.getMenu().removeItem(R.id.menu_allow); popup.getMenu().removeItem(R.id.menu_block); } final Packet packet = new Packet(); packet.version = version; packet.protocol = protocol; packet.daddr = daddr; packet.dport = dport; packet.time = time; packet.uid = uid; packet.allowed = (allowed > 0); // Time popup.getMenu().findItem(R.id.menu_time) .setTitle(SimpleDateFormat.getDateTimeInstance().format(time)); // Handle click popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem menuItem) { switch (menuItem.getItemId()) { case R.id.menu_application: { Intent main = new Intent(ActivityLog.this, ActivityMain.class); main.putExtra(ActivityMain.EXTRA_SEARCH, Integer.toString(uid)); startActivity(main); return true; } case R.id.menu_whois: startActivity(lookupIP); return true; case R.id.menu_port: startActivity(lookupPort); return true; case R.id.menu_allow: if (IAB.isPurchased(ActivityPro.SKU_FILTER, ActivityLog.this)) { DatabaseHelper.getInstance(ActivityLog.this).updateAccess(packet, dname, 0); ServiceSinkhole.reload("allow host", ActivityLog.this, false); Intent main = new Intent(ActivityLog.this, ActivityMain.class); main.putExtra(ActivityMain.EXTRA_SEARCH, Integer.toString(uid)); startActivity(main); } else startActivity(new Intent(ActivityLog.this, ActivityPro.class)); return true; case R.id.menu_block: if (IAB.isPurchased(ActivityPro.SKU_FILTER, ActivityLog.this)) { DatabaseHelper.getInstance(ActivityLog.this).updateAccess(packet, dname, 1); ServiceSinkhole.reload("block host", ActivityLog.this, false); Intent main = new Intent(ActivityLog.this, ActivityMain.class); main.putExtra(ActivityMain.EXTRA_SEARCH, Integer.toString(uid)); startActivity(main); } else startActivity(new Intent(ActivityLog.this, ActivityPro.class)); return true; default: return false; } } }); // Show popup.show(); } }); live = true; } @Override protected void onResume() { super.onResume(); if (live) { DatabaseHelper.getInstance(this).addLogChangedListener(listener); updateAdapter(); } } @Override protected void onPause() { super.onPause(); if (live) DatabaseHelper.getInstance(this).removeLogChangedListener(listener); } @Override protected void onDestroy() { running = false; adapter = null; PreferenceManager.getDefaultSharedPreferences(this).unregisterOnSharedPreferenceChangeListener(this); super.onDestroy(); } @Override public void onSharedPreferenceChanged(SharedPreferences prefs, String name) { Log.i(TAG, "Preference " + name + "=" + prefs.getAll().get(name)); if ("log".equals(name)) { // Get enabled boolean log = prefs.getBoolean(name, false); // Display disabled warning TextView tvDisabled = findViewById(R.id.tvDisabled); tvDisabled.setVisibility(log ? View.GONE : View.VISIBLE); // Check switch state SwitchCompat swEnabled = getSupportActionBar().getCustomView().findViewById(R.id.swEnabled); if (swEnabled.isChecked() != log) swEnabled.setChecked(log); ServiceSinkhole.reload("changed " + name, ActivityLog.this, false); } } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.logging, menu); menuSearch = menu.findItem(R.id.menu_search); SearchView searchView = (SearchView) menuSearch.getActionView(); searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { private String getUidForName(String query) { if (query != null && query.length() > 0) { for (Rule rule : Rule.getRules(true, ActivityLog.this)) if (rule.name != null && rule.name.toLowerCase().contains(query.toLowerCase())) { String newQuery = Integer.toString(rule.uid); Log.i(TAG, "Search " + query + " found " + rule.name + " new " + newQuery); return newQuery; } Log.i(TAG, "Search " + query + " not found"); } return query; } @Override public boolean onQueryTextSubmit(String query) { if (adapter != null) adapter.getFilter().filter(getUidForName(query)); return true; } @Override public boolean onQueryTextChange(String newText) { if (adapter != null) adapter.getFilter().filter(getUidForName(newText)); return true; } }); searchView.setOnCloseListener(new SearchView.OnCloseListener() { @Override public boolean onClose() { if (adapter != null) adapter.getFilter().filter(null); return true; } }); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); // https://gist.github.com/granoeste/5574148 File pcap_file = new File(getDir("data", MODE_PRIVATE), "netguard.pcap"); boolean export = (getPackageManager().resolveActivity(getIntentPCAPDocument(), 0) != null); menu.findItem(R.id.menu_protocol_udp).setChecked(prefs.getBoolean("proto_udp", true)); menu.findItem(R.id.menu_protocol_tcp).setChecked(prefs.getBoolean("proto_tcp", true)); menu.findItem(R.id.menu_protocol_other).setChecked(prefs.getBoolean("proto_other", true)); menu.findItem(R.id.menu_traffic_allowed).setEnabled(prefs.getBoolean("filter", false)); menu.findItem(R.id.menu_traffic_allowed).setChecked(prefs.getBoolean("traffic_allowed", true)); menu.findItem(R.id.menu_traffic_blocked).setChecked(prefs.getBoolean("traffic_blocked", true)); menu.findItem(R.id.menu_refresh).setEnabled(!menu.findItem(R.id.menu_log_live).isChecked()); menu.findItem(R.id.menu_log_resolve).setChecked(prefs.getBoolean("resolve", false)); menu.findItem(R.id.menu_log_organization).setChecked(prefs.getBoolean("organization", false)); menu.findItem(R.id.menu_pcap_enabled).setChecked(prefs.getBoolean("pcap", false)); menu.findItem(R.id.menu_pcap_export).setEnabled(pcap_file.exists() && export); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); final File pcap_file = new File(getDir("data", MODE_PRIVATE), "netguard.pcap"); switch (item.getItemId()) { case android.R.id.home: Log.i(TAG, "Up"); NavUtils.navigateUpFromSameTask(this); return true; case R.id.menu_protocol_udp: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("proto_udp", item.isChecked()).apply(); updateAdapter(); return true; case R.id.menu_protocol_tcp: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("proto_tcp", item.isChecked()).apply(); updateAdapter(); return true; case R.id.menu_protocol_other: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("proto_other", item.isChecked()).apply(); updateAdapter(); return true; case R.id.menu_traffic_allowed: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("traffic_allowed", item.isChecked()).apply(); updateAdapter(); return true; case R.id.menu_traffic_blocked: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("traffic_blocked", item.isChecked()).apply(); updateAdapter(); return true; case R.id.menu_log_live: item.setChecked(!item.isChecked()); live = item.isChecked(); if (live) { DatabaseHelper.getInstance(this).addLogChangedListener(listener); updateAdapter(); } else DatabaseHelper.getInstance(this).removeLogChangedListener(listener); return true; case R.id.menu_refresh: updateAdapter(); return true; case R.id.menu_log_resolve: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("resolve", item.isChecked()).apply(); adapter.setResolve(item.isChecked()); adapter.notifyDataSetChanged(); return true; case R.id.menu_log_organization: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("organization", item.isChecked()).apply(); adapter.setOrganization(item.isChecked()); adapter.notifyDataSetChanged(); return true; case R.id.menu_pcap_enabled: item.setChecked(!item.isChecked()); prefs.edit().putBoolean("pcap", item.isChecked()).apply(); ServiceSinkhole.setPcap(item.isChecked(), ActivityLog.this); return true; case R.id.menu_pcap_export: startActivityForResult(getIntentPCAPDocument(), REQUEST_PCAP); return true; case R.id.menu_log_clear: new AsyncTask<Object, Object, Object>() { @Override protected Object doInBackground(Object... objects) { DatabaseHelper.getInstance(ActivityLog.this).clearLog(-1); if (prefs.getBoolean("pcap", false)) { ServiceSinkhole.setPcap(false, ActivityLog.this); if (pcap_file.exists() && !pcap_file.delete()) Log.w(TAG, "Delete PCAP failed"); ServiceSinkhole.setPcap(true, ActivityLog.this); } else { if (pcap_file.exists() && !pcap_file.delete()) Log.w(TAG, "Delete PCAP failed"); } return null; } @Override protected void onPostExecute(Object result) { if (running) updateAdapter(); } }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); return true; case R.id.menu_log_support: Intent intent = new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse("https://github.com/M66B/NetGuard/blob/master/FAQ.md#FAQ27")); if (getPackageManager().resolveActivity(intent, 0) != null) startActivity(intent); return true; default: return super.onOptionsItemSelected(item); } } private void updateAdapter() { if (adapter != null) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); boolean udp = prefs.getBoolean("proto_udp", true); boolean tcp = prefs.getBoolean("proto_tcp", true); boolean other = prefs.getBoolean("proto_other", true); boolean allowed = prefs.getBoolean("traffic_allowed", true); boolean blocked = prefs.getBoolean("traffic_blocked", true); adapter.changeCursor(DatabaseHelper.getInstance(this).getLog(udp, tcp, other, allowed, blocked)); if (menuSearch != null && menuSearch.isActionViewExpanded()) { SearchView searchView = (SearchView) menuSearch.getActionView(); adapter.getFilter().filter(searchView.getQuery().toString()); } } } private Intent getIntentPCAPDocument() { Intent intent; if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { if (Util.isPackageInstalled("org.openintents.filemanager", this)) { intent = new Intent("org.openintents.action.PICK_DIRECTORY"); } else { intent = new Intent(Intent.ACTION_VIEW); intent.setData( Uri.parse("https://play.google.com/store/apps/details?id=org.openintents.filemanager")); } } else { intent = new Intent(Intent.ACTION_CREATE_DOCUMENT); intent.addCategory(Intent.CATEGORY_OPENABLE); intent.setType("application/octet-stream"); intent.putExtra(Intent.EXTRA_TITLE, "netguard_" + new SimpleDateFormat("yyyyMMdd").format(new Date().getTime()) + ".pcap"); } return intent; } @Override protected void onActivityResult(int requestCode, int resultCode, final Intent data) { Log.i(TAG, "onActivityResult request=" + requestCode + " result=" + requestCode + " ok=" + (resultCode == RESULT_OK)); if (requestCode == REQUEST_PCAP) { if (resultCode == RESULT_OK && data != null) handleExportPCAP(data); } else { Log.w(TAG, "Unknown activity result request=" + requestCode); super.onActivityResult(requestCode, resultCode, data); } } private void handleExportPCAP(final Intent data) { new AsyncTask<Object, Object, Throwable>() { @Override protected Throwable doInBackground(Object... objects) { OutputStream out = null; FileInputStream in = null; try { // Stop capture ServiceSinkhole.setPcap(false, ActivityLog.this); Uri target = data.getData(); if (data.hasExtra("org.openintents.extra.DIR_PATH")) target = Uri.parse(target + "/netguard.pcap"); Log.i(TAG, "Export PCAP URI=" + target); out = getContentResolver().openOutputStream(target); File pcap = new File(getDir("data", MODE_PRIVATE), "netguard.pcap"); in = new FileInputStream(pcap); int len; long total = 0; byte[] buf = new byte[4096]; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); total += len; } Log.i(TAG, "Copied bytes=" + total); return null; } catch (Throwable ex) { Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex)); return ex; } finally { if (out != null) try { out.close(); } catch (IOException ex) { Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex)); } if (in != null) try { in.close(); } catch (IOException ex) { Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex)); } // Resume capture SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ActivityLog.this); if (prefs.getBoolean("pcap", false)) ServiceSinkhole.setPcap(true, ActivityLog.this); } } @Override protected void onPostExecute(Throwable ex) { if (ex == null) Toast.makeText(ActivityLog.this, R.string.msg_completed, Toast.LENGTH_LONG).show(); else Toast.makeText(ActivityLog.this, ex.toString(), Toast.LENGTH_LONG).show(); } }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); } }