NetGuard/app/src/main/java/eu/faircode/netguard/Util.java

1011 lines
41 KiB
Java

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 2015-2018 by Marcel Bokhorst (M66B)
*/
import android.Manifest;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ApplicationErrorReport;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.ConnectivityManager;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkInfo;
import android.net.Uri;
import android.net.VpnService;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.PowerManager;
import android.preference.PreferenceManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.URL;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import androidx.appcompat.app.AlertDialog;
import androidx.core.net.ConnectivityManagerCompat;
public class Util {
private static final String TAG = "NetGuard.Util";
// Roam like at home
private static final List<String> listEU = Arrays.asList(
"AT", // Austria
"BE", // Belgium
"BG", // Bulgaria
"HR", // Croatia
"CY", // Cyprus
"CZ", // Czech Republic
"DK", // Denmark
"EE", // Estonia
"FI", // Finland
"FR", // France
"DE", // Germany
"GR", // Greece
"HU", // Hungary
"IS", // Iceland
"IE", // Ireland
"IT", // Italy
"LV", // Latvia
"LI", // Liechtenstein
"LT", // Lithuania
"LU", // Luxembourg
"MT", // Malta
"NL", // Netherlands
"NO", // Norway
"PL", // Poland
"PT", // Portugal
"RO", // Romania
"SK", // Slovakia
"SI", // Slovenia
"ES", // Spain
"SE", // Sweden
"GB" // United Kingdom
);
private static native String jni_getprop(String name);
private static native boolean is_numeric_address(String ip);
static {
try {
System.loadLibrary("netguard");
} catch (UnsatisfiedLinkError ignored) {
System.exit(1);
}
}
public static String getSelfVersionName(Context context) {
try {
PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
return pInfo.versionName;
} catch (PackageManager.NameNotFoundException ex) {
return ex.toString();
}
}
public static int getSelfVersionCode(Context context) {
try {
PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
return pInfo.versionCode;
} catch (PackageManager.NameNotFoundException ex) {
return -1;
}
}
public static boolean isNetworkActive(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return (cm == null ? false : cm.getActiveNetworkInfo() != null);
}
public static boolean isConnected(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = (cm == null ? null : cm.getActiveNetworkInfo());
return (ni != null && ni.isConnected());
}
public static boolean isWifiActive(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = (cm == null ? null : cm.getActiveNetworkInfo());
return (ni != null && ni.getType() == ConnectivityManager.TYPE_WIFI);
}
public static boolean isMeteredNetwork(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return (cm != null && ConnectivityManagerCompat.isActiveNetworkMetered(cm));
}
public static String getWifiSSID(Context context) {
WifiManager wm = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
String ssid = (wm == null ? null : wm.getConnectionInfo().getSSID());
return (ssid == null ? "NULL" : ssid);
}
public static int getNetworkType(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = (cm == null ? null : cm.getActiveNetworkInfo());
return (ni == null ? TelephonyManager.NETWORK_TYPE_UNKNOWN : ni.getSubtype());
}
public static String getNetworkGeneration(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = cm.getActiveNetworkInfo();
return (ni != null && ni.getType() == ConnectivityManager.TYPE_MOBILE ? getNetworkGeneration(ni.getSubtype()) : null);
}
public static boolean isRoaming(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = (cm == null ? null : cm.getActiveNetworkInfo());
return (ni != null && ni.isRoaming());
}
public static boolean isNational(Context context) {
try {
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
return (tm != null && tm.getSimCountryIso() != null && tm.getSimCountryIso().equals(tm.getNetworkCountryIso()));
} catch (Throwable ignored) {
return false;
}
}
public static boolean isEU(Context context) {
try {
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
return (tm != null && isEU(tm.getSimCountryIso()) && isEU(tm.getNetworkCountryIso()));
} catch (Throwable ignored) {
return false;
}
}
public static boolean isEU(String country) {
return (country != null && listEU.contains(country.toUpperCase()));
}
public static String getNetworkGeneration(int networkType) {
switch (networkType) {
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_IDEN:
case TelephonyManager.NETWORK_TYPE_GSM:
return "2G";
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_HSPAP:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_TD_SCDMA:
return "3G";
case TelephonyManager.NETWORK_TYPE_LTE:
case TelephonyManager.NETWORK_TYPE_IWLAN:
return "4G";
default:
return "?G";
}
}
public static boolean hasPhoneStatePermission(Context context) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
return (context.checkSelfPermission(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED);
else
return true;
}
public static List<String> getDefaultDNS(Context context) {
String dns1 = null;
String dns2 = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Network an = cm.getActiveNetwork();
if (an != null) {
LinkProperties lp = cm.getLinkProperties(an);
if (lp != null) {
List<InetAddress> dns = lp.getDnsServers();
if (dns != null) {
if (dns.size() > 0)
dns1 = dns.get(0).getHostAddress();
if (dns.size() > 1)
dns2 = dns.get(1).getHostAddress();
for (InetAddress d : dns)
Log.i(TAG, "DNS from LP: " + d.getHostAddress());
}
}
}
} else {
dns1 = jni_getprop("net.dns1");
dns2 = jni_getprop("net.dns2");
}
if (!TextUtils.isEmpty(dns1))
dns1 = dns1.split("%")[0];
if (!TextUtils.isEmpty(dns2))
dns2 = dns2.split("%")[0];
List<String> listDns = new ArrayList<>();
listDns.add(TextUtils.isEmpty(dns1) ? "8.8.8.8" : dns1);
listDns.add(TextUtils.isEmpty(dns2) ? "8.8.4.4" : dns2);
return listDns;
}
public static boolean isNumericAddress(String ip) {
return is_numeric_address(ip);
}
public static boolean isInteractive(Context context) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT_WATCH)
return (pm != null && pm.isScreenOn());
else
return (pm != null && pm.isInteractive());
}
public static boolean isPackageInstalled(String packageName, Context context) {
try {
context.getPackageManager().getPackageInfo(packageName, 0);
return true;
} catch (PackageManager.NameNotFoundException ignored) {
return false;
}
}
public static boolean isSystem(int uid, Context context) {
PackageManager pm = context.getPackageManager();
String[] pkgs = pm.getPackagesForUid(uid);
if (pkgs != null)
for (String pkg : pkgs)
if (isSystem(pkg, context))
return true;
return false;
}
public static boolean isSystem(String packageName, Context context) {
try {
PackageManager pm = context.getPackageManager();
PackageInfo info = pm.getPackageInfo(packageName, 0);
return ((info.applicationInfo.flags & (ApplicationInfo.FLAG_SYSTEM | ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)) != 0);
/*
PackageInfo pkg = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES);
return (pkg != null && pkg.signatures != null && pkg.signatures.length > 0 &&
sys.signatures.length > 0 && sys.signatures[0].equals(pkg.signatures[0]));
*/
} catch (PackageManager.NameNotFoundException ignore) {
return false;
}
}
public static boolean hasInternet(String packageName, Context context) {
PackageManager pm = context.getPackageManager();
return (pm.checkPermission("android.permission.INTERNET", packageName) == PackageManager.PERMISSION_GRANTED);
}
public static boolean hasInternet(int uid, Context context) {
PackageManager pm = context.getPackageManager();
String[] pkgs = pm.getPackagesForUid(uid);
if (pkgs != null)
for (String pkg : pkgs)
if (hasInternet(pkg, context))
return true;
return false;
}
public static boolean isEnabled(PackageInfo info, Context context) {
int setting;
try {
PackageManager pm = context.getPackageManager();
setting = pm.getApplicationEnabledSetting(info.packageName);
} catch (IllegalArgumentException ex) {
setting = PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
Log.w(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
}
if (setting == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT)
return info.applicationInfo.enabled;
else
return (setting == PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
}
public static List<String> getApplicationNames(int uid, Context context) {
List<String> listResult = new ArrayList<>();
if (uid == 0)
listResult.add(context.getString(R.string.title_root));
else if (uid == 1013)
listResult.add(context.getString(R.string.title_mediaserver));
else if (uid == 9999)
listResult.add(context.getString(R.string.title_nobody));
else {
PackageManager pm = context.getPackageManager();
String[] pkgs = pm.getPackagesForUid(uid);
if (pkgs == null)
listResult.add(Integer.toString(uid));
else
for (String pkg : pkgs)
try {
ApplicationInfo info = pm.getApplicationInfo(pkg, 0);
listResult.add(pm.getApplicationLabel(info).toString());
} catch (PackageManager.NameNotFoundException ignored) {
}
Collections.sort(listResult);
}
return listResult;
}
public static boolean canFilter(Context context) {
// https://android-review.googlesource.com/#/c/206710/1/untrusted_app.te
File tcp = new File("/proc/net/tcp");
File tcp6 = new File("/proc/net/tcp6");
try {
if (tcp.exists() && tcp.canRead())
return true;
} catch (SecurityException ignored) {
}
try {
return (tcp6.exists() && tcp6.canRead());
} catch (SecurityException ignored) {
return false;
}
}
public static boolean isDebuggable(Context context) {
return ((context.getApplicationContext().getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0);
}
public static boolean isPlayStoreInstall(Context context) {
try {
return "com.android.vending".equals(context.getPackageManager().getInstallerPackageName(context.getPackageName()));
} catch (Throwable ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
return false;
}
}
public static boolean hasXposed(Context context) {
if (true || !isPlayStoreInstall(context))
return false;
for (StackTraceElement ste : Thread.currentThread().getStackTrace())
if (ste.getClassName().startsWith("de.robv.android.xposed"))
return true;
return false;
}
public static boolean ownFault(Context context, Throwable ex) {
if (ex instanceof OutOfMemoryError)
return false;
if (ex.getCause() != null)
ex = ex.getCause();
for (StackTraceElement ste : ex.getStackTrace())
if (ste.getClassName().startsWith(context.getPackageName()))
return true;
return false;
}
public static String getFingerprint(Context context) {
try {
PackageManager pm = context.getPackageManager();
String pkg = context.getPackageName();
PackageInfo info = pm.getPackageInfo(pkg, PackageManager.GET_SIGNATURES);
byte[] cert = info.signatures[0].toByteArray();
MessageDigest digest = MessageDigest.getInstance("SHA1");
byte[] bytes = digest.digest(cert);
StringBuilder sb = new StringBuilder();
for (byte b : bytes)
sb.append(Integer.toString(b & 0xff, 16).toLowerCase());
return sb.toString();
} catch (Throwable ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
return null;
}
}
public static boolean hasValidFingerprint(Context context) {
String calculated = getFingerprint(context);
String expected = context.getString(R.string.fingerprint);
return (calculated != null && calculated.equals(expected));
}
public static void setTheme(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean dark = prefs.getBoolean("dark_theme", false);
String theme = prefs.getString("theme", "teal");
if (theme.equals("teal"))
context.setTheme(dark ? R.style.AppThemeTealDark : R.style.AppThemeTeal);
else if (theme.equals("blue"))
context.setTheme(dark ? R.style.AppThemeBlueDark : R.style.AppThemeBlue);
else if (theme.equals("purple"))
context.setTheme(dark ? R.style.AppThemePurpleDark : R.style.AppThemePurple);
else if (theme.equals("amber"))
context.setTheme(dark ? R.style.AppThemeAmberDark : R.style.AppThemeAmber);
else if (theme.equals("orange"))
context.setTheme(dark ? R.style.AppThemeOrangeDark : R.style.AppThemeOrange);
else if (theme.equals("green"))
context.setTheme(dark ? R.style.AppThemeGreenDark : R.style.AppThemeGreen);
if (context instanceof Activity && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
setTaskColor(context);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static void setTaskColor(Context context) {
TypedValue tv = new TypedValue();
context.getTheme().resolveAttribute(R.attr.colorPrimary, tv, true);
((Activity) context).setTaskDescription(new ActivityManager.TaskDescription(null, null, tv.data));
}
public static int dips2pixels(int dips, Context context) {
return Math.round(dips * context.getResources().getDisplayMetrics().density + 0.5f);
}
private static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
int height = options.outHeight;
int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
int halfHeight = height / 2;
int halfWidth = width / 2;
while (halfHeight / inSampleSize >= reqHeight && halfWidth / inSampleSize >= reqWidth)
inSampleSize *= 2;
}
return inSampleSize;
}
public static Bitmap decodeSampledBitmapFromResource(
Resources resources, int resourceId, int reqWidth, int reqHeight) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(resources, resourceId, options);
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
options.inJustDecodeBounds = false;
return BitmapFactory.decodeResource(resources, resourceId, options);
}
public static String getProtocolName(int protocol, int version, boolean brief) {
// https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers
String p = null;
String b = null;
switch (protocol) {
case 0:
p = "HOPO";
b = "H";
break;
case 2:
p = "IGMP";
b = "G";
break;
case 1:
case 58:
p = "ICMP";
b = "I";
break;
case 6:
p = "TCP";
b = "T";
break;
case 17:
p = "UDP";
b = "U";
break;
case 50:
p = "ESP";
b = "E";
break;
}
if (p == null)
return Integer.toString(protocol) + "/" + version;
return ((brief ? b : p) + (version > 0 ? version : ""));
}
public interface DoubtListener {
void onSure();
}
public static void areYouSure(Context context, int explanation, final DoubtListener listener) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.sure, null, false);
TextView tvExplanation = view.findViewById(R.id.tvExplanation);
tvExplanation.setText(explanation);
new AlertDialog.Builder(context)
.setView(view)
.setCancelable(true)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
listener.onSure();
}
})
.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
})
.create().show();
}
private static final Map<String, String> mapIPOrganization = new HashMap<>();
public static String getOrganization(String ip) throws Exception {
synchronized (mapIPOrganization) {
if (mapIPOrganization.containsKey(ip))
return mapIPOrganization.get(ip);
}
BufferedReader reader = null;
try {
URL url = new URL("https://ipinfo.io/" + ip + "/org");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setReadTimeout(15 * 1000);
connection.connect();
reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String organization = reader.readLine();
if ("undefined".equals(organization))
organization = null;
synchronized (mapIPOrganization) {
mapIPOrganization.put(ip, organization);
}
return organization;
} finally {
if (reader != null)
reader.close();
}
}
public static String md5(String text, String salt) throws NoSuchAlgorithmException, UnsupportedEncodingException {
// MD5
byte[] bytes = MessageDigest.getInstance("MD5").digest((text + salt).getBytes("UTF-8"));
StringBuilder sb = new StringBuilder();
for (byte b : bytes)
sb.append(String.format("%02X", b));
return sb.toString();
}
public static void logExtras(Intent intent) {
if (intent != null)
logBundle(intent.getExtras());
}
public static void logBundle(Bundle data) {
if (data != null) {
Set<String> keys = data.keySet();
StringBuilder stringBuilder = new StringBuilder();
for (String key : keys) {
Object value = data.get(key);
stringBuilder.append(key)
.append("=")
.append(value)
.append(value == null ? "" : " (" + value.getClass().getSimpleName() + ")")
.append("\r\n");
}
Log.d(TAG, stringBuilder.toString());
}
}
public static StringBuilder readString(InputStreamReader reader) {
StringBuilder sb = new StringBuilder(2048);
char[] read = new char[128];
try {
for (int i; (i = reader.read(read)) >= 0; sb.append(read, 0, i)) ;
} catch (Throwable ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
}
return sb;
}
public static void sendCrashReport(Throwable ex, final Context context) {
if (!isPlayStoreInstall(context) || Util.isDebuggable(context))
return;
try {
ApplicationErrorReport report = new ApplicationErrorReport();
report.packageName = report.processName = context.getPackageName();
report.time = System.currentTimeMillis();
report.type = ApplicationErrorReport.TYPE_CRASH;
report.systemApp = false;
ApplicationErrorReport.CrashInfo crash = new ApplicationErrorReport.CrashInfo();
crash.exceptionClassName = ex.getClass().getSimpleName();
crash.exceptionMessage = ex.getMessage();
StringWriter writer = new StringWriter();
PrintWriter printer = new PrintWriter(writer);
ex.printStackTrace(printer);
crash.stackTrace = writer.toString();
StackTraceElement stack = ex.getStackTrace()[0];
crash.throwClassName = stack.getClassName();
crash.throwFileName = stack.getFileName();
crash.throwLineNumber = stack.getLineNumber();
crash.throwMethodName = stack.getMethodName();
report.crashInfo = crash;
final Intent bug = new Intent(Intent.ACTION_APP_ERROR);
bug.putExtra(Intent.EXTRA_BUG_REPORT, report);
bug.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (bug.resolveActivity(context.getPackageManager()) != null)
context.startActivity(bug);
} catch (Throwable exex) {
Log.e(TAG, exex.toString() + "\n" + Log.getStackTraceString(exex));
}
}
public static String getGeneralInfo(Context context) {
StringBuilder sb = new StringBuilder();
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
sb.append(String.format("Interactive %B\r\n", isInteractive(context)));
sb.append(String.format("Connected %B\r\n", isConnected(context)));
sb.append(String.format("WiFi %B\r\n", isWifiActive(context)));
sb.append(String.format("Metered %B\r\n", isMeteredNetwork(context)));
sb.append(String.format("Roaming %B\r\n", isRoaming(context)));
if (tm.getSimState() == TelephonyManager.SIM_STATE_READY)
sb.append(String.format("SIM %s/%s/%s\r\n", tm.getSimCountryIso(), tm.getSimOperatorName(), tm.getSimOperator()));
if (tm.getNetworkType() != TelephonyManager.NETWORK_TYPE_UNKNOWN)
sb.append(String.format("Network %s/%s/%s\r\n", tm.getNetworkCountryIso(), tm.getNetworkOperatorName(), tm.getNetworkOperator()));
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
sb.append(String.format("Power saving %B\r\n", pm.isPowerSaveMode()));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
sb.append(String.format("Battery optimizing %B\r\n", batteryOptimizing(context)));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
sb.append(String.format("Data saving %B\r\n", dataSaving(context)));
if (sb.length() > 2)
sb.setLength(sb.length() - 2);
return sb.toString();
}
public static String getNetworkInfo(Context context) {
StringBuilder sb = new StringBuilder();
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ani = cm.getActiveNetworkInfo();
List<NetworkInfo> listNI = new ArrayList<>();
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
listNI.addAll(Arrays.asList(cm.getAllNetworkInfo()));
else
for (Network network : cm.getAllNetworks()) {
NetworkInfo ni = cm.getNetworkInfo(network);
if (ni != null)
listNI.add(ni);
}
for (NetworkInfo ni : listNI) {
sb.append(ni.getTypeName()).append('/').append(ni.getSubtypeName())
.append(' ').append(ni.getDetailedState())
.append(TextUtils.isEmpty(ni.getExtraInfo()) ? "" : " " + ni.getExtraInfo())
.append(ni.getType() == ConnectivityManager.TYPE_MOBILE ? " " + Util.getNetworkGeneration(ni.getSubtype()) : "")
.append(ni.isRoaming() ? " R" : "")
.append(ani != null && ni.getType() == ani.getType() && ni.getSubtype() == ani.getSubtype() ? " *" : "")
.append("\r\n");
}
try {
Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
if (nis != null)
while (nis.hasMoreElements()) {
NetworkInterface ni = nis.nextElement();
if (ni != null && !ni.isLoopback()) {
List<InterfaceAddress> ias = ni.getInterfaceAddresses();
if (ias != null)
for (InterfaceAddress ia : ias)
sb.append(ni.getName())
.append(' ').append(ia.getAddress().getHostAddress())
.append('/').append(ia.getNetworkPrefixLength())
.append(' ').append(ni.getMTU())
.append(' ').append(ni.isUp() ? '^' : 'v')
.append("\r\n");
}
}
} catch (Throwable ex) {
sb.append(ex.toString()).append("\r\n");
}
if (sb.length() > 2)
sb.setLength(sb.length() - 2);
return sb.toString();
}
@TargetApi(Build.VERSION_CODES.M)
public static boolean batteryOptimizing(Context context) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
return !pm.isIgnoringBatteryOptimizations(context.getPackageName());
}
@TargetApi(Build.VERSION_CODES.N)
public static boolean dataSaving(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return (cm.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED);
}
public static void sendLogcat(final Uri uri, final Context context) {
AsyncTask task = new AsyncTask<Object, Object, Intent>() {
@Override
protected Intent doInBackground(Object... objects) {
StringBuilder sb = new StringBuilder();
sb.append(context.getString(R.string.msg_issue));
sb.append("\r\n\r\n\r\n\r\n");
// Get version info
String version = getSelfVersionName(context);
sb.append(String.format("NetGuard: %s/%d\r\n", version, getSelfVersionCode(context)));
sb.append(String.format("Android: %s (SDK %d)\r\n", Build.VERSION.RELEASE, Build.VERSION.SDK_INT));
sb.append("\r\n");
// Get device info
sb.append(String.format("Brand: %s\r\n", Build.BRAND));
sb.append(String.format("Manufacturer: %s\r\n", Build.MANUFACTURER));
sb.append(String.format("Model: %s\r\n", Build.MODEL));
sb.append(String.format("Product: %s\r\n", Build.PRODUCT));
sb.append(String.format("Device: %s\r\n", Build.DEVICE));
sb.append(String.format("Host: %s\r\n", Build.HOST));
sb.append(String.format("Display: %s\r\n", Build.DISPLAY));
sb.append(String.format("Id: %s\r\n", Build.ID));
sb.append(String.format("Fingerprint: %B\r\n", hasValidFingerprint(context)));
String abi;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
abi = Build.CPU_ABI;
else
abi = (Build.SUPPORTED_ABIS.length > 0 ? Build.SUPPORTED_ABIS[0] : "?");
sb.append(String.format("ABI: %s\r\n", abi));
sb.append("\r\n");
sb.append(String.format("VPN dialogs: %B\r\n", isPackageInstalled("com.android.vpndialogs", context)));
try {
sb.append(String.format("Prepared: %B\r\n", VpnService.prepare(context) == null));
} catch (Throwable ex) {
sb.append("Prepared: ").append((ex.toString())).append("\r\n").append(Log.getStackTraceString(ex));
}
sb.append("\r\n");
sb.append(getGeneralInfo(context));
sb.append("\r\n\r\n");
sb.append(getNetworkInfo(context));
sb.append("\r\n\r\n");
// Get DNS
sb.append("DNS system:\r\n");
for (String dns : getDefaultDNS(context))
sb.append("- ").append(dns).append("\r\n");
sb.append("DNS VPN:\r\n");
for (InetAddress dns : ServiceSinkhole.getDns(context))
sb.append("- ").append(dns).append("\r\n");
sb.append("\r\n");
// Get TCP connection info
String line;
BufferedReader in;
try {
sb.append("/proc/net/tcp:\r\n");
in = new BufferedReader(new FileReader("/proc/net/tcp"));
while ((line = in.readLine()) != null)
sb.append(line).append("\r\n");
in.close();
sb.append("\r\n");
sb.append("/proc/net/tcp6:\r\n");
in = new BufferedReader(new FileReader("/proc/net/tcp6"));
while ((line = in.readLine()) != null)
sb.append(line).append("\r\n");
in.close();
sb.append("\r\n");
} catch (IOException ex) {
sb.append(ex.toString()).append("\r\n");
}
// Get settings
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
Map<String, ?> all = prefs.getAll();
for (String key : all.keySet())
sb.append("Setting: ").append(key).append('=').append(all.get(key)).append("\r\n");
sb.append("\r\n");
// Write logcat
OutputStream out = null;
try {
Log.i(TAG, "Writing logcat URI=" + uri);
out = context.getContentResolver().openOutputStream(uri);
out.write(getLogcat().toString().getBytes());
out.write(getTrafficLog(context).toString().getBytes());
} catch (Throwable ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
sb.append(ex.toString()).append("\r\n").append(Log.getStackTraceString(ex)).append("\r\n");
} finally {
if (out != null)
try {
out.close();
} catch (IOException ignored) {
}
}
// Build intent
Intent sendEmail = new Intent(Intent.ACTION_SEND);
sendEmail.setType("message/rfc822");
sendEmail.putExtra(Intent.EXTRA_EMAIL, new String[]{"marcel+netguard@faircode.eu"});
sendEmail.putExtra(Intent.EXTRA_SUBJECT, "NetGuard " + version + " logcat");
sendEmail.putExtra(Intent.EXTRA_TEXT, sb.toString());
sendEmail.putExtra(Intent.EXTRA_STREAM, uri);
return sendEmail;
}
@Override
protected void onPostExecute(Intent sendEmail) {
if (sendEmail != null)
try {
context.startActivity(sendEmail);
} catch (Throwable ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
}
}
};
task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
private static StringBuilder getTrafficLog(Context context) {
StringBuilder sb = new StringBuilder();
Cursor cursor = DatabaseHelper.getInstance(context).getLog(true, true, true, true, true);
int colTime = cursor.getColumnIndex("time");
int colVersion = cursor.getColumnIndex("version");
int colProtocol = cursor.getColumnIndex("protocol");
int colFlags = cursor.getColumnIndex("flags");
int colSAddr = cursor.getColumnIndex("saddr");
int colSPort = cursor.getColumnIndex("sport");
int colDAddr = cursor.getColumnIndex("daddr");
int colDPort = cursor.getColumnIndex("dport");
int colDName = cursor.getColumnIndex("dname");
int colUid = cursor.getColumnIndex("uid");
int colData = cursor.getColumnIndex("data");
int colAllowed = cursor.getColumnIndex("allowed");
int colConnection = cursor.getColumnIndex("connection");
int colInteractive = cursor.getColumnIndex("interactive");
DateFormat format = SimpleDateFormat.getDateTimeInstance();
int count = 0;
while (cursor.moveToNext() && ++count < 250) {
sb.append(format.format(cursor.getLong(colTime)));
sb.append(" v").append(cursor.getInt(colVersion));
sb.append(" p").append(cursor.getInt(colProtocol));
sb.append(' ').append(cursor.getString(colFlags));
sb.append(' ').append(cursor.getString(colSAddr));
sb.append('/').append(cursor.getInt(colSPort));
sb.append(" > ").append(cursor.getString(colDAddr));
sb.append('/').append(cursor.getString(colDName));
sb.append('/').append(cursor.getInt(colDPort));
sb.append(" u").append(cursor.getInt(colUid));
sb.append(" a").append(cursor.getInt(colAllowed));
sb.append(" c").append(cursor.getInt(colConnection));
sb.append(" i").append(cursor.getInt(colInteractive));
sb.append(' ').append(cursor.getString(colData));
sb.append("\r\n");
}
cursor.close();
return sb;
}
private static StringBuilder getLogcat() {
StringBuilder builder = new StringBuilder();
Process process1 = null;
Process process2 = null;
BufferedReader br = null;
try {
String[] command1 = new String[]{"logcat", "-d", "-v", "threadtime"};
process1 = Runtime.getRuntime().exec(command1);
br = new BufferedReader(new InputStreamReader(process1.getInputStream()));
int count = 0;
String line;
while ((line = br.readLine()) != null) {
count++;
builder.append(line).append("\r\n");
}
Log.i(TAG, "Logcat lines=" + count);
} catch (IOException ex) {
Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
} finally {
if (br != null)
try {
br.close();
} catch (IOException ignored) {
}
if (process2 != null)
try {
process2.destroy();
} catch (Throwable ex) {
Log.w(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
}
if (process1 != null)
try {
process1.destroy();
} catch (Throwable ex) {
Log.w(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
}
}
return builder;
}
}