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753 lines
33 KiB
Java
753 lines
33 KiB
Java
package com.fox2code.mmm;
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import android.annotation.SuppressLint;
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import android.app.ActivityManager;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.pm.PackageManager;
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import android.content.pm.Signature;
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import android.content.res.Configuration;
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import android.content.res.Resources;
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import android.os.Build;
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import android.os.SystemClock;
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import android.security.keystore.KeyGenParameterSpec;
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import android.security.keystore.KeyProperties;
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import android.util.Base64;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.annotation.StyleRes;
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import androidx.core.app.NotificationManagerCompat;
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import androidx.emoji2.text.DefaultEmojiCompatConfig;
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import androidx.emoji2.text.EmojiCompat;
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import androidx.emoji2.text.FontRequestEmojiCompatConfig;
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import androidx.security.crypto.EncryptedSharedPreferences;
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import androidx.security.crypto.MasterKey;
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import com.fox2code.foxcompat.app.FoxActivity;
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import com.fox2code.foxcompat.app.FoxApplication;
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import com.fox2code.foxcompat.app.internal.FoxProcessExt;
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import com.fox2code.foxcompat.view.FoxThemeWrapper;
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import com.fox2code.mmm.installer.InstallerInitializer;
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import com.fox2code.mmm.utils.TimberUtils;
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import com.fox2code.mmm.utils.io.GMSProviderInstaller;
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import com.fox2code.mmm.utils.io.net.Http;
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import com.fox2code.mmm.utils.sentry.SentryMain;
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import com.fox2code.rosettax.LanguageSwitcher;
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import com.google.common.hash.Hashing;
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import com.topjohnwu.superuser.Shell;
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import org.matomo.sdk.Matomo;
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import org.matomo.sdk.Tracker;
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import org.matomo.sdk.TrackerBuilder;
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import org.matomo.sdk.extra.TrackHelper;
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import java.io.File;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.KeyStore;
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import java.security.KeyStoreException;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchProviderException;
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import java.security.SecureRandom;
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import java.security.UnrecoverableKeyException;
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import java.security.cert.CertificateException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Locale;
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import java.util.Objects;
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import java.util.Random;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.KeyGenerator;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.IvParameterSpec;
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import io.noties.markwon.Markwon;
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import io.noties.markwon.html.HtmlPlugin;
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import io.noties.markwon.image.ImagesPlugin;
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import io.noties.markwon.image.network.OkHttpNetworkSchemeHandler;
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import io.realm.Realm;
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import timber.log.Timber;
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public class MainApplication extends FoxApplication implements androidx.work.Configuration.Provider {
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// Warning! Locales that don't exist will crash the app
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// Anything that is commented out is supported but the translation is not complete to at least 60%
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public static final HashSet<String> supportedLocales = new HashSet<>();
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private static final String timeFormatString = "dd MMM yyyy"; // Example: 13 july 2001
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private static final Shell.Builder shellBuilder;
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@SuppressLint("RestrictedApi")
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// Use FoxProcess wrapper helper.
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private static final boolean wrapped = !FoxProcessExt.isRootLoader();
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private static final ArrayList<String> callers = new ArrayList<>();
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public static boolean Iof = false;
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private static String SHOWCASE_MODE_TRUE = null;
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private static long secret;
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private static Locale timeFormatLocale = Resources.getSystem().getConfiguration().getLocales().get(0);
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private static SimpleDateFormat timeFormat = new SimpleDateFormat(timeFormatString, timeFormatLocale);
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private static String relPackageName = BuildConfig.APPLICATION_ID;
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@SuppressLint("StaticFieldLeak")
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private static MainApplication INSTANCE;
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private static boolean firstBoot;
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private static HashMap<Object, Object> mSharedPrefs;
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public static String updateCheckBg;
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static {
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Shell.setDefaultBuilder(shellBuilder = Shell.Builder.create().setFlags(Shell.FLAG_REDIRECT_STDERR | Shell.FLAG_MOUNT_MASTER).setTimeout(15).setInitializers(InstallerInitializer.class));
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Random random = new Random();
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do {
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secret = random.nextLong();
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} while (secret == 0);
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}
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public boolean modulesHaveUpdates = false;
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public int updateModuleCount = 0;
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public List<String> updateModules = new ArrayList<>();
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public boolean isMatomoAllowed;
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@StyleRes
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private int managerThemeResId = R.style.Theme_MagiskModuleManager;
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private FoxThemeWrapper markwonThemeContext;
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private Markwon markwon;
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private byte[] existingKey;
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private Tracker tracker;
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private boolean makingNewKey = false;
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private boolean isCrashHandler;
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public MainApplication() {
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if (INSTANCE != null && INSTANCE != this)
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throw new IllegalStateException("Duplicate application instance!");
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INSTANCE = this;
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}
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public static Shell build(String... command) {
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return shellBuilder.build(command);
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}
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public static void addSecret(Intent intent) {
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ComponentName componentName = intent.getComponent();
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String packageName = componentName != null ? componentName.getPackageName() : intent.getPackage();
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if (!BuildConfig.APPLICATION_ID.equalsIgnoreCase(packageName) && !relPackageName.equals(packageName)) {
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// Code safeguard, we should never reach here.
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throw new IllegalArgumentException("Can't add secret to outbound Intent");
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}
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intent.putExtra("secret", secret);
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}
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public static SharedPreferences getSharedPreferences(String name) {
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// encryptedSharedPreferences is used
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Context mContext = getINSTANCE();
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name = name + "x";
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if (mSharedPrefs == null) {
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Timber.d("Creating shared prefs map");
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mSharedPrefs = new HashMap<>();
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}
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/*
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this part is only here because with added encryption, parts of code that were previously calling this over and over again or on each invocation of a method are causing performance issues.
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*/
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if (BuildConfig.DEBUG) {
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// get file, function, and line number
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StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
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// get the caller of this method
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StackTraceElement caller = stackTrace[3];
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Timber.d("Shared prefs file: %s, caller: %s:%d in %s", name, caller.getFileName(), caller.getLineNumber(), caller.getMethodName());
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// add the caller to an array. if the last 3 callers are the same, then we are in a loop, log at error level
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callers.add(name + ":" + caller.getLineNumber() + ":" + caller.getMethodName());
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// get the last 3 callers
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List<String> last3 = callers.subList(Math.max(callers.size() - 3, 0), callers.size());
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// if the last 3 callers are the same, then we are in a loop, log at error level
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if (last3.size() == 3 && last3.get(0).equals(last3.get(1)) && last3.get(1).equals(last3.get(2))) {
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Timber.e("Shared prefs loop detected. File: %s, caller: %s:%d", name, caller.getMethodName(), caller.getLineNumber());
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}
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}
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if (mSharedPrefs.containsKey(name)) {
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Timber.d("Returning cached shared prefs");
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return (SharedPreferences) mSharedPrefs.get(name);
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}
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try {
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Timber.d("Creating encrypted shared prefs");
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MasterKey masterKey = new MasterKey.Builder(mContext).setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build();
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SharedPreferences sharedPreferences = EncryptedSharedPreferences.create(mContext, name, masterKey, EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV, EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM);
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mSharedPrefs.put(name, sharedPreferences);
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return sharedPreferences;
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} catch (Exception e) {
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Timber.e(e, "Failed to create encrypted shared preferences");
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return mContext.getSharedPreferences(name, Context.MODE_PRIVATE);
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}
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}
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// Is application wrapped, and therefore must reduce it's feature set.
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@SuppressWarnings("BooleanMethodIsAlwaysInverted")
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public static boolean isWrapped() {
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return wrapped;
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}
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public static boolean checkSecret(Intent intent) {
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return intent != null && intent.getLongExtra("secret", ~secret) == secret;
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}
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public static boolean isShowcaseMode() {
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if (SHOWCASE_MODE_TRUE != null) {
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// convert from String to boolean
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return Boolean.parseBoolean(SHOWCASE_MODE_TRUE);
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}
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boolean showcaseMode = getSharedPreferences("mmm").getBoolean("pref_showcase_mode", false);
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SHOWCASE_MODE_TRUE = String.valueOf(showcaseMode);
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return showcaseMode;
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}
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public static boolean shouldPreventReboot() {
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return getSharedPreferences("mmm").getBoolean("pref_prevent_reboot", true);
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}
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public static boolean isShowIncompatibleModules() {
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return getSharedPreferences("mmm").getBoolean("pref_show_incompatible", false);
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}
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public static boolean isForceDarkTerminal() {
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return getSharedPreferences("mmm").getBoolean("pref_force_dark_terminal", false);
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}
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public static boolean isTextWrapEnabled() {
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return getSharedPreferences("mmm").getBoolean("pref_wrap_text", false);
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}
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public static boolean isDohEnabled() {
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return getSharedPreferences("mmm").getBoolean("pref_dns_over_https", true);
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}
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public static boolean isMonetEnabled() {
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return Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && getSharedPreferences("mmm").getBoolean("pref_enable_monet", true);
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}
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public static boolean isBlurEnabled() {
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return getSharedPreferences("mmm").getBoolean("pref_enable_blur", false);
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}
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public static boolean isDeveloper() {
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if (BuildConfig.DEBUG) return true;
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return getSharedPreferences("mmm").getBoolean("developer", false);
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}
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public static boolean isDisableLowQualityModuleFilter() {
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return getSharedPreferences("mmm").getBoolean("pref_disable_low_quality_module_filter", false) && isDeveloper();
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}
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public static boolean isUsingMagiskCommand() {
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return InstallerInitializer.peekMagiskVersion() >= Constants.MAGISK_VER_CODE_INSTALL_COMMAND && getSharedPreferences("mmm").getBoolean("pref_use_magisk_install_command", false) && isDeveloper();
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}
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public static boolean isBackgroundUpdateCheckEnabled() {
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if (updateCheckBg != null) {
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return Boolean.parseBoolean(updateCheckBg);
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}
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boolean wrapped = isWrapped();
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boolean updateCheckBgTemp = !wrapped && getSharedPreferences("mmm").getBoolean("pref_background_update_check", true);
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updateCheckBg = String.valueOf(updateCheckBgTemp);
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return Boolean.parseBoolean(updateCheckBg);
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}
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public static boolean isAndroidacyTestMode() {
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return isDeveloper() && getSharedPreferences("mmm").getBoolean("pref_androidacy_test_mode", false);
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}
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public static boolean isFirstBoot() {
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return firstBoot;
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}
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public static void setHasGottenRootAccess(boolean bool) {
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getSharedPreferences("mmm").edit().putBoolean("has_root_access", bool).apply();
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}
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public static boolean isCrashReportingEnabled() {
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return SentryMain.IS_SENTRY_INSTALLED && getSharedPreferences("mmm").getBoolean("pref_crash_reporting", BuildConfig.DEFAULT_ENABLE_CRASH_REPORTING);
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}
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public static SharedPreferences getBootSharedPreferences() {
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return getSharedPreferences("mmm_boot");
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}
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public static MainApplication getINSTANCE() {
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return INSTANCE;
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}
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public static String formatTime(long timeStamp) {
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// new Date(x) also get the local timestamp for format
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return timeFormat.format(new Date(timeStamp));
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}
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public static boolean isNotificationPermissionGranted() {
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return NotificationManagerCompat.from(INSTANCE).areNotificationsEnabled();
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}
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public Markwon getMarkwon() {
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if (isCrashHandler) return null;
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if (this.markwon != null) return this.markwon;
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FoxThemeWrapper contextThemeWrapper = this.markwonThemeContext;
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if (contextThemeWrapper == null) {
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contextThemeWrapper = this.markwonThemeContext = new FoxThemeWrapper(this, this.managerThemeResId);
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}
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Markwon markwon = Markwon.builder(contextThemeWrapper).usePlugin(HtmlPlugin.create()).usePlugin(ImagesPlugin.create().addSchemeHandler(OkHttpNetworkSchemeHandler.create(Http.getHttpClientWithCache()))).build();
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return this.markwon = markwon;
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}
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@NonNull
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@Override
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public androidx.work.Configuration getWorkManagerConfiguration() {
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return new androidx.work.Configuration.Builder().build();
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}
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public void updateTheme() {
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@StyleRes int themeResId;
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String theme;
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boolean monet = isMonetEnabled();
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switch (theme = getSharedPreferences("mmm").getString("pref_theme", "system")) {
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default:
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Timber.w("Unknown theme id: %s", theme);
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case "system":
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themeResId = monet ? R.style.Theme_MagiskModuleManager_Monet : R.style.Theme_MagiskModuleManager;
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break;
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case "dark":
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themeResId = monet ? R.style.Theme_MagiskModuleManager_Monet_Dark : R.style.Theme_MagiskModuleManager_Dark;
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break;
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case "black":
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themeResId = monet ? R.style.Theme_MagiskModuleManager_Monet_Black : R.style.Theme_MagiskModuleManager_Black;
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break;
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case "light":
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themeResId = monet ? R.style.Theme_MagiskModuleManager_Monet_Light : R.style.Theme_MagiskModuleManager_Light;
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break;
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case "transparent_light":
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if (monet) {
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Timber.tag("MainApplication").w("Monet is not supported for transparent theme");
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}
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themeResId = R.style.Theme_MagiskModuleManager_Transparent_Light;
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break;
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}
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this.setManagerThemeResId(themeResId);
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}
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@StyleRes
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public int getManagerThemeResId() {
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return managerThemeResId;
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}
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@SuppressLint("NonConstantResourceId")
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public void setManagerThemeResId(@StyleRes int resId) {
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this.managerThemeResId = resId;
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if (this.markwonThemeContext != null) {
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this.markwonThemeContext.setTheme(resId);
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}
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this.markwon = null;
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}
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@SuppressLint("NonConstantResourceId")
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public boolean isLightTheme() {
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return switch (getSharedPreferences("mmm").getString("pref_theme", "system")) {
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case "system" -> this.isSystemLightTheme();
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case "dark", "black" -> false;
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default -> true;
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};
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}
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private boolean isSystemLightTheme() {
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return (this.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) != Configuration.UI_MODE_NIGHT_YES;
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}
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@SuppressWarnings("unused")
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public boolean isDarkTheme() {
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return !this.isLightTheme();
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}
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@SuppressWarnings("UnusedReturnValue")
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public synchronized Tracker getTracker() {
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if (tracker == null) {
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tracker = TrackerBuilder.createDefault(BuildConfig.ANALYTICS_ENDPOINT, 1).build(Matomo.getInstance(this));
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tracker.startNewSession();
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tracker.setDispatchInterval(1000);
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}
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return tracker;
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}
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@Override
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public void onCreate() {
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supportedLocales.addAll(Arrays.asList("ar", "bs", "cs", "de", "es-rMX", "fr", "hu", "id", "ja", "nl", "pl", "pt", "pt-rBR", "ro", "ru", "tr", "uk", "zh", "zh-rTW", "en"));
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if (INSTANCE == null) INSTANCE = this;
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relPackageName = this.getPackageName();
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super.onCreate();
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SentryMain.initialize(this);
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// Initialize Timber
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TimberUtils.configTimber();
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Timber.i("Starting FoxMMM version %s (%d) - commit %s", BuildConfig.VERSION_NAME, BuildConfig.VERSION_CODE, BuildConfig.COMMIT_HASH);
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// Update SSL Ciphers if update is possible
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GMSProviderInstaller.installIfNeeded(this);
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// detect if we're launching the crashhandler
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// get intent that started the crashhandler
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Intent intent = getIntent();
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if (intent != null) {
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if (intent.getClass().getName().equals("com.fox2code.mmm.CrashHandler")) {
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isCrashHandler = true;
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}
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}
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if (!isCrashHandler) {
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Http.ensureCacheDirs();
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Http.ensureURLHandler(getApplicationContext());
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}
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Timber.d("Initializing FoxMMM");
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Timber.d("Started from background: %s", !isInForeground());
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Timber.d("FoxMMM is running in debug mode");
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Timber.d("Initializing Realm");
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Realm.init(this);
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Timber.d("Initialized Realm");
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// analytics
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Timber.d("Initializing matomo");
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isMatomoAllowed = isMatomoAllowed();
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getTracker();
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if (!isMatomoAllowed) {
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Timber.d("Matomo is not allowed");
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tracker.setOptOut(true);
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} else {
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tracker.setOptOut(false);
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}
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if (getSharedPreferences("matomo").getBoolean("install_tracked", false)) {
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TrackHelper.track().download().with(MainApplication.getINSTANCE().getTracker());
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Timber.d("Sent install event to matomo");
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getSharedPreferences("matomo").edit().putBoolean("install_tracked", true).apply();
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} else {
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Timber.d("Matomo already has install");
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}
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try {
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@SuppressLint("PackageManagerGetSignatures") Signature[] s = this.getPackageManager().getPackageInfo(this.getPackageName(), PackageManager.GET_SIGNATURES).signatures;
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@SuppressWarnings("SpellCheckingInspection") String[] osh = new String[]{"7bec7c4462f4aac616612d9f56a023ee3046e83afa956463b5fab547fd0a0be6", "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"};
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//noinspection SpellCheckingInspection
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String oosh = Hashing.sha256().hashBytes(s[0].toByteArray()).toString();
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Iof = Arrays.asList(osh).contains(oosh);
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} catch (PackageManager.NameNotFoundException ignored) {
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}
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SharedPreferences sharedPreferences = MainApplication.getSharedPreferences("mmm");
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// We are only one process so it's ok to do this
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SharedPreferences bootPrefs = MainApplication.getSharedPreferences("mmm_boot");
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long lastBoot = System.currentTimeMillis() - SystemClock.elapsedRealtime();
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long lastBootPrefs = bootPrefs.getLong("last_boot", 0);
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if (lastBootPrefs == 0 || Math.abs(lastBoot - lastBootPrefs) > 100) {
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boolean firstBoot = sharedPreferences.getBoolean("first_boot", true);
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bootPrefs.edit().clear().putLong("last_boot", lastBoot).putBoolean("first_boot", firstBoot).apply();
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if (firstBoot) {
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sharedPreferences.edit().putBoolean("first_boot", false).apply();
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}
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MainApplication.firstBoot = firstBoot;
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} else {
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MainApplication.firstBoot = bootPrefs.getBoolean("first_boot", false);
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}
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// Force initialize language early.
|
|
new LanguageSwitcher(this);
|
|
this.updateTheme();
|
|
// Update emoji config
|
|
FontRequestEmojiCompatConfig fontRequestEmojiCompatConfig = DefaultEmojiCompatConfig.create(this);
|
|
if (fontRequestEmojiCompatConfig != null) {
|
|
fontRequestEmojiCompatConfig.setReplaceAll(true);
|
|
fontRequestEmojiCompatConfig.setMetadataLoadStrategy(EmojiCompat.LOAD_STRATEGY_MANUAL);
|
|
EmojiCompat emojiCompat = EmojiCompat.init(fontRequestEmojiCompatConfig);
|
|
new Thread(() -> {
|
|
Timber.i("Loading emoji compat...");
|
|
emojiCompat.load();
|
|
Timber.i("Emoji compat loaded!");
|
|
}, "Emoji compat init.").start();
|
|
}
|
|
if (Objects.equals(BuildConfig.ANDROIDACY_CLIENT_ID, "")) {
|
|
Timber.w("Androidacy client id is empty! Please set it in androidacy.properties. Will not enable Androidacy.");
|
|
SharedPreferences.Editor editor = sharedPreferences.edit();
|
|
editor.putBoolean("pref_androidacy_repo_enabled", false);
|
|
Timber.w("ANDROIDACY_CLIENT_ID is empty, disabling AndroidacyRepoData 1");
|
|
editor.apply();
|
|
}
|
|
}
|
|
|
|
private boolean isMatomoAllowed() {
|
|
return getSharedPreferences("mmm").getBoolean("pref_analytics_enabled", BuildConfig.DEFAULT_ENABLE_ANALYTICS);
|
|
}
|
|
|
|
@SuppressWarnings("unused")
|
|
private Intent getIntent() {
|
|
return this.getPackageManager().getLaunchIntentForPackage(this.getPackageName());
|
|
}
|
|
|
|
@Override
|
|
public void onCreateFoxActivity(FoxActivity compatActivity) {
|
|
super.onCreateFoxActivity(compatActivity);
|
|
compatActivity.setTheme(this.managerThemeResId);
|
|
}
|
|
|
|
@Override
|
|
public void onRefreshUI(FoxActivity compatActivity) {
|
|
super.onRefreshUI(compatActivity);
|
|
compatActivity.setThemeRecreate(this.managerThemeResId);
|
|
}
|
|
|
|
@Override
|
|
public void onConfigurationChanged(@NonNull Configuration newConfig) {
|
|
Locale newTimeFormatLocale = newConfig.getLocales().get(0);
|
|
if (timeFormatLocale != newTimeFormatLocale) {
|
|
timeFormatLocale = newTimeFormatLocale;
|
|
timeFormat = new SimpleDateFormat(timeFormatString, timeFormatLocale);
|
|
}
|
|
super.onConfigurationChanged(newConfig);
|
|
}
|
|
|
|
// getDataDir wrapper with optional path parameter
|
|
public File getDataDirWithPath(String path) {
|
|
File dataDir = this.getDataDir();
|
|
// for path with / somewhere in the middle, its a subdirectory
|
|
if (path != null) {
|
|
if (path.startsWith("/")) path = path.substring(1);
|
|
if (path.endsWith("/")) path = path.substring(0, path.length() - 1);
|
|
if (path.contains("/")) {
|
|
String[] dirs = path.split("/");
|
|
for (String dir : dirs) {
|
|
dataDir = new File(dataDir, dir);
|
|
// make sure the directory exists
|
|
if (!dataDir.exists()) {
|
|
if (!dataDir.mkdirs()) {
|
|
if (BuildConfig.DEBUG)
|
|
Timber.w("Failed to create directory %s", dataDir);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
dataDir = new File(dataDir, path);
|
|
// create the directory if it doesn't exist
|
|
if (!dataDir.exists()) {
|
|
if (!dataDir.mkdirs()) {
|
|
if (BuildConfig.DEBUG) Timber.w("Failed to create directory %s", dataDir);
|
|
}
|
|
}
|
|
}
|
|
return dataDir;
|
|
} else {
|
|
throw new IllegalArgumentException("Path cannot be null");
|
|
}
|
|
}
|
|
|
|
@SuppressLint("RestrictedApi")
|
|
// view is nullable because it's called from xml
|
|
public void resetApp() {
|
|
// cant show a dialog because android is throwing a fit so here's hoping anybody who calls this method is otherwise confirming that the user wants to reset the app
|
|
Timber.w("Resetting app...");
|
|
// recursively delete the app's data
|
|
((ActivityManager) this.getSystemService(Context.ACTIVITY_SERVICE)).clearApplicationUserData();
|
|
}
|
|
|
|
public boolean isInForeground() {
|
|
// determine if the app is in the foreground
|
|
ActivityManager activityManager = (ActivityManager) this.getSystemService(Context.ACTIVITY_SERVICE);
|
|
List<ActivityManager.RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
|
|
if (appProcesses == null) {
|
|
Timber.d("appProcesses is null");
|
|
return false;
|
|
}
|
|
final String packageName = this.getPackageName();
|
|
for (ActivityManager.RunningAppProcessInfo appProcess : appProcesses) {
|
|
Timber.d("Process: %s, Importance: %d", appProcess.processName, appProcess.importance);
|
|
if (appProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND && appProcess.processName.equals(packageName)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// returns if background execution is restricted
|
|
@SuppressWarnings("unused")
|
|
public boolean isBackgroundRestricted() {
|
|
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
|
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
|
|
return am.isBackgroundRestricted();
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Create a key to encrypt a realm and save it securely in the keystore
|
|
public byte[] getKey() {
|
|
if (makingNewKey) {
|
|
// sleep until the key is made
|
|
while (makingNewKey) try {
|
|
//noinspection BusyWait
|
|
Thread.sleep(100);
|
|
} catch (InterruptedException ignored) {
|
|
// silence is bliss
|
|
}
|
|
}
|
|
// attempt to read the existingKey property
|
|
if (existingKey != null) {
|
|
return existingKey;
|
|
}
|
|
// check if we have a key already
|
|
SharedPreferences sharedPreferences = MainApplication.getSharedPreferences("realm_key");
|
|
if (sharedPreferences.contains("iv_and_encrypted_key")) {
|
|
return getExistingKey();
|
|
} else {
|
|
makingNewKey = true;
|
|
}
|
|
// open a connection to the android keystore
|
|
KeyStore keyStore;
|
|
try {
|
|
keyStore = KeyStore.getInstance("AndroidKeyStore");
|
|
keyStore.load(null);
|
|
} catch (KeyStoreException | NoSuchAlgorithmException | CertificateException |
|
|
IOException e) {
|
|
Timber.v("Failed to open the keystore.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
// create a securely generated random asymmetric RSA key
|
|
byte[] realmKey = new byte[Realm.ENCRYPTION_KEY_LENGTH];
|
|
new SecureRandom().nextBytes(realmKey);
|
|
// create a cipher that uses AES encryption -- we'll use this to encrypt our key
|
|
Cipher cipher;
|
|
try {
|
|
cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
|
|
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
|
|
Timber.e("Failed to create a cipher.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
Timber.v("Cipher created.");
|
|
// generate secret key
|
|
KeyGenerator keyGenerator;
|
|
try {
|
|
keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
|
|
} catch (NoSuchAlgorithmException | NoSuchProviderException e) {
|
|
Timber.e("Failed to access the key generator.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
KeyGenParameterSpec keySpec = new KeyGenParameterSpec.Builder("realm_key", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT).setBlockModes(KeyProperties.BLOCK_MODE_CBC).setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7).build();
|
|
try {
|
|
keyGenerator.init(keySpec);
|
|
} catch (InvalidAlgorithmParameterException e) {
|
|
Timber.e("Failed to generate a secret key.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
Timber.v("Secret key generated.");
|
|
keyGenerator.generateKey();
|
|
Timber.v("Secret key stored in the keystore.");
|
|
// access the generated key in the android keystore, then
|
|
// use the cipher to create an encrypted version of the key
|
|
byte[] initializationVector;
|
|
byte[] encryptedKeyForRealm;
|
|
try {
|
|
SecretKey secretKey = (SecretKey) keyStore.getKey("realm_key", null);
|
|
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
|
|
encryptedKeyForRealm = cipher.doFinal(realmKey);
|
|
initializationVector = cipher.getIV();
|
|
} catch (InvalidKeyException | UnrecoverableKeyException | NoSuchAlgorithmException |
|
|
KeyStoreException | BadPaddingException | IllegalBlockSizeException e) {
|
|
Timber.e("Failed encrypting the key with the secret key.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
// keep the encrypted key in shared preferences
|
|
// to persist it across application runs
|
|
byte[] initializationVectorAndEncryptedKey = new byte[Integer.BYTES + initializationVector.length + encryptedKeyForRealm.length];
|
|
ByteBuffer buffer = ByteBuffer.wrap(initializationVectorAndEncryptedKey);
|
|
buffer.order(ByteOrder.BIG_ENDIAN);
|
|
buffer.putInt(initializationVector.length);
|
|
buffer.put(initializationVector);
|
|
buffer.put(encryptedKeyForRealm);
|
|
Timber.d("Created all keys successfully.");
|
|
MainApplication.getSharedPreferences("realm_key").edit().putString("iv_and_encrypted_key", Base64.encodeToString(initializationVectorAndEncryptedKey, Base64.NO_WRAP)).apply();
|
|
Timber.d("Saved the encrypted key in shared preferences.");
|
|
makingNewKey = false;
|
|
return realmKey; // pass to a realm configuration via encryptionKey()
|
|
}
|
|
|
|
// Access the encrypted key in the keystore, decrypt it with the secret,
|
|
// and use it to open and read from the realm again
|
|
public byte[] getExistingKey() {
|
|
// attempt to read the existingKey property
|
|
if (existingKey != null) {
|
|
return existingKey;
|
|
}
|
|
// open a connection to the android keystore
|
|
KeyStore keyStore;
|
|
try {
|
|
keyStore = KeyStore.getInstance("AndroidKeyStore");
|
|
keyStore.load(null);
|
|
} catch (KeyStoreException | NoSuchAlgorithmException | CertificateException |
|
|
IOException e) {
|
|
Timber.e("Failed to open the keystore.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
Timber.v("Keystore opened.");
|
|
// access the encrypted key that's stored in shared preferences
|
|
byte[] initializationVectorAndEncryptedKey = Base64.decode(MainApplication.getSharedPreferences("realm_key").getString("iv_and_encrypted_key", null), Base64.DEFAULT);
|
|
Timber.d("Retrieved the encrypted key from shared preferences. Key length: %d", initializationVectorAndEncryptedKey.length);
|
|
ByteBuffer buffer = ByteBuffer.wrap(initializationVectorAndEncryptedKey);
|
|
buffer.order(ByteOrder.BIG_ENDIAN);
|
|
// extract the length of the initialization vector from the buffer
|
|
int initializationVectorLength = buffer.getInt();
|
|
// extract the initialization vector based on that length
|
|
byte[] initializationVector = new byte[initializationVectorLength];
|
|
buffer.get(initializationVector);
|
|
// extract the encrypted key
|
|
byte[] encryptedKey = new byte[initializationVectorAndEncryptedKey.length - Integer.BYTES - initializationVectorLength];
|
|
buffer.get(encryptedKey);
|
|
Timber.d("Got key from shared preferences.");
|
|
// create a cipher that uses AES encryption to decrypt our key
|
|
Cipher cipher;
|
|
try {
|
|
cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
|
|
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
|
|
Timber.e("Failed to create cipher.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
// decrypt the encrypted key with the secret key stored in the keystore
|
|
byte[] decryptedKey;
|
|
try {
|
|
final SecretKey secretKey = (SecretKey) keyStore.getKey("realm_key", null);
|
|
final IvParameterSpec initializationVectorSpec = new IvParameterSpec(initializationVector);
|
|
cipher.init(Cipher.DECRYPT_MODE, secretKey, initializationVectorSpec);
|
|
decryptedKey = cipher.doFinal(encryptedKey);
|
|
} catch (InvalidKeyException e) {
|
|
Timber.e("Failed to decrypt. Invalid key.");
|
|
throw new RuntimeException(e);
|
|
} catch (UnrecoverableKeyException | NoSuchAlgorithmException | BadPaddingException |
|
|
KeyStoreException | IllegalBlockSizeException |
|
|
InvalidAlgorithmParameterException e) {
|
|
Timber.e("Failed to decrypt the encrypted realm key with the secret key.");
|
|
throw new RuntimeException(e);
|
|
}
|
|
// set property on MainApplication to indicate that the key has been accessed
|
|
existingKey = decryptedKey;
|
|
return decryptedKey; // pass to a realm configuration via encryptionKey()
|
|
}
|
|
|
|
public void resetUpdateModule() {
|
|
modulesHaveUpdates = false;
|
|
updateModuleCount = 0;
|
|
updateModules = new ArrayList<>();
|
|
}
|
|
|
|
public static class ReleaseTree extends Timber.Tree {
|
|
@Override
|
|
protected void log(int priority, String tag, @NonNull String message, Throwable t) {
|
|
// basically silently drop all logs below error, and write the rest to logcat
|
|
if (priority >= Log.ERROR) {
|
|
if (t != null) {
|
|
Log.println(priority, tag, message);
|
|
t.printStackTrace();
|
|
} else {
|
|
Log.println(priority, tag, message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|