Update busybox; Improve environment setup

app/src/main/java/com/topjohnwu/magisk/LogFragment.java

@@ -104,13 +104,13 @@ public class LogFragment extends Fragment {
     }
 
     private void reloadErrorLog() {
-        new LogsManager(true).execute();
+        new LogsManager(true).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
         svLog.post(() -> svLog.scrollTo(0, txtLog.getHeight()));
         hsvLog.post(() -> hsvLog.scrollTo(0, 0));
     }
 
     private void clear() {
-        new LogsManager(false).execute();
+        new LogsManager(false).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
         reloadErrorLog();
     }
 

app/src/main/java/com/topjohnwu/magisk/MagiskFragment.java

@@ -70,7 +70,7 @@ public class MagiskFragment extends Fragment {
         ta0.recycle();
         ta1.recycle();
         ta2.recycle();
-        new updateUI().execute();
+        new updateUI().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
 
         return v;
     }
@@ -132,7 +132,7 @@ public class MagiskFragment extends Fragment {
                                     new Utils.DownloadReceiver(getString(R.string.magisk)) {
                                         @Override
                                         public void task(File file) {
-                                            new Async.FlashZIP(mContext, mName, file.getPath()).execute();
+                                            new Async.FlashZIP(mContext, mName, file.getPath()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                         }
                                     },
                                     Utils.magiskLink, "latest_magisk.zip"))

app/src/main/java/com/topjohnwu/magisk/MainActivity.java

@@ -12,6 +12,7 @@ import android.preference.PreferenceManager;
 import android.support.annotation.IdRes;
 import android.support.annotation.NonNull;
 import android.support.design.widget.NavigationView;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.view.GravityCompat;
 import android.support.v4.widget.DrawerLayout;
@@ -22,6 +23,7 @@ import android.view.MenuItem;
 import android.view.View;
 
 import com.topjohnwu.magisk.utils.Logger;
+import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
 
 import butterknife.BindView;
@@ -56,13 +58,15 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         setContentView(R.layout.activity_main);
         ButterKnife.bind(this);
 
-        // Startups
-        Utils.init(this);
         if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
                 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
         }
 
+        if (!Shell.rootAccess()) {
+            Snackbar.make(findViewById(android.R.id.content), R.string.no_root_access, Snackbar.LENGTH_LONG).show();
+        }
+
         this.getFragmentManager().addOnBackStackChangedListener(
                 () -> {
                     Fragment hm = getFragmentManager().findFragmentByTag("root");
@@ -108,7 +112,6 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
                         }
                     }
                 }
-
         );
 
         setSupportActionBar(toolbar);
@@ -149,12 +152,6 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
 
     }
 
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-
-    }
-
     @Override
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);

app/src/main/java/com/topjohnwu/magisk/ModulesAdapter.java

@@ -5,6 +5,7 @@ import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.SharedPreferences;
+import android.os.AsyncTask;
 import android.preference.PreferenceManager;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
@@ -110,7 +111,7 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
                                     @Override
                                     public void task(File file) {
                                         Log.d("Magisk", "Task firing");
-                                        new Async.FlashZIP(context, mModule.getId(), file.toString()).execute();
+                                        new Async.FlashZIP(context, mModule.getId(), file.toString()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                     }
                                 };
                                 String filename = mModule.getId().replace(" ", "") + ".zip";

app/src/main/java/com/topjohnwu/magisk/ModulesFragment.java

@@ -62,8 +62,8 @@ public class ModulesFragment extends Fragment {
         mSwipeRefreshLayout.setOnRefreshListener(() -> {
 
             recyclerView.setVisibility(View.GONE);
-            new Async.LoadModules(getActivity()).execute();
+            new Async.LoadModules(getActivity()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
-            new updateUI().execute();
+            new updateUI().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
             prefs.edit().putBoolean("ignoreUpdateAlerts", false).apply();
 
         });
@@ -76,7 +76,7 @@ public class ModulesFragment extends Fragment {
             }
         });
 
-        new updateUI().execute();
+        new updateUI().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
 
         return viewMain;
     }
@@ -88,7 +88,7 @@ public class ModulesFragment extends Fragment {
             final Uri uri = data.getData();
             try {
                 // Get the file path from the URI
-                new Async.FlashZIP(getActivity(), uri).execute();
+                new Async.FlashZIP(getActivity(), uri).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                 FileInfo fileInfo = FileUtils.getFileInfo(getActivity(), uri);
 
             } catch (Exception e) {

app/src/main/java/com/topjohnwu/magisk/ReposAdapter.java

@@ -6,6 +6,7 @@ import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.graphics.Color;
+import android.os.AsyncTask;
 import android.preference.PreferenceManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.DisplayMetrics;
@@ -148,7 +149,7 @@ public class ReposAdapter extends RecyclerView.Adapter<ReposAdapter.ViewHolder>
                             @Override
                             public void task(File file) {
                                 Log.d("Magisk", "Task firing");
-                                new Async.FlashZIP(context, repo.getId(), file.toString()).execute();
+                                new Async.FlashZIP(context, repo.getId(), file.toString()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                             }
                         };
                         String filename = repo.getId().replace(" ", "") + ".zip";

app/src/main/java/com/topjohnwu/magisk/ReposFragment.java

@@ -2,6 +2,7 @@ package com.topjohnwu.magisk;
 
 import android.app.Fragment;
 import android.content.DialogInterface;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.widget.SwipeRefreshLayout;
@@ -126,7 +127,7 @@ public class ReposFragment extends Fragment {
                                 @Override
                                 public void task(File file) {
                                     Log.d("Magisk", "Task firing");
-                                    new Async.FlashZIP(getActivity(), repo.getId(), file.toString()).execute();
+                                    new Async.FlashZIP(getActivity(), repo.getId(), file.toString()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                 }
                             };
                             String filename = repo.getId().replace(" ", "") + ".zip";

app/src/main/java/com/topjohnwu/magisk/RootFragment.java

@@ -112,7 +112,7 @@ public class RootFragment extends Fragment {
         }
         rootToggle.setEnabled(!autoRootStatus);
         autoRootToggle.setChecked(autoRootStatus);
-        new updateUI().execute();
+        new updateUI().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
 
         rootToggle.setOnClickListener(toggle -> Utils.toggleRoot(((CompoundButton) toggle).isChecked(), getActivity()));
 
@@ -131,7 +131,7 @@ public class RootFragment extends Fragment {
 
         selinuxToggle.setOnClickListener(toggle -> {
             Shell.su(((CompoundButton) toggle).isChecked() ? "setenforce 1" : "setenforce 0");
-            new updateUI().execute();
+            new updateUI().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
         });
 
         return view;

app/src/main/java/com/topjohnwu/magisk/SplashActivity.java

@@ -13,13 +13,17 @@ import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
 
+import java.io.File;
 import java.util.HashSet;
 import java.util.Set;
 
 public class SplashActivity extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        if (PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("theme","").equals("Dark")) {
+
+        SharedPreferences defaultPrefs = PreferenceManager.getDefaultSharedPreferences(getApplication());
+
+        if (defaultPrefs.getString("theme","").equals("Dark")) {
             setTheme(R.style.AppTheme_dh);
         }
         super.onCreate(savedInstanceState);
@@ -27,13 +31,12 @@ public class SplashActivity extends AppCompatActivity {
         //setups go here
 
         // Set up default preferences,make sure we add "extra" blacklist entries.
-
         PreferenceManager.setDefaultValues(this, R.xml.defaultpref, false);
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplication());
 
-        if (!prefs.contains("auto_blacklist")) {
+
+        if (!defaultPrefs.contains("auto_blacklist")) {
             Logger.dh("AutoRootFragment: Setting default preferences for application");
-            SharedPreferences.Editor editor = prefs.edit();
+            SharedPreferences.Editor editor = defaultPrefs.edit();
             Set<String> set = new HashSet<>();
             set.add("com.google.android.apps.walletnfcrel");
             set.add("com.google.android.gms");
@@ -47,45 +50,25 @@ public class SplashActivity extends AppCompatActivity {
             if (!Utils.hasServicePermission(getApplicationContext())) {
                 Utils.toggleAutoRoot(false, getApplicationContext());
             }
-        }
-        if (Utils.autoToggleEnabled(getApplicationContext())) {
-
             if (!Utils.isMyServiceRunning(MonitorService.class, getApplicationContext())) {
                 Intent myIntent = new Intent(getApplication(), MonitorService.class);
                 getApplication().startService(myIntent);
             }
-        } else {
+        } else if (defaultPrefs.getBoolean("keep_root_off", false)) {
-            if (PreferenceManager.getDefaultSharedPreferences(getApplication()).getBoolean("keep_root_off", false)) {
             Utils.toggleRoot(false, getApplication());
         }
-        }
 
         // Set up quick settings tile
+        if (defaultPrefs.getBoolean("enable_quicktile", false)) {
             Utils.SetupQuickSettingsTile(getApplicationContext());
+        }
 
         // Initialize
-
+        Utils.init(this);
-
+        new Async.CheckUpdates(this).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
-            if (Shell.rootAccess()) {
+        new Async.LoadModules(this).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
-                if (!Utils.busyboxInstalled()) {
+        new Async.LoadRepos(this).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
-                    String busybox = getApplicationContext().getApplicationInfo().nativeLibraryDir + "/libbusybox.so";
+        new Async.BusyboxEnv(this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-                    Shell.su(
-                            "rm -rf /data/busybox",
-                            "mkdir -p /data/busybox",
-                            "cp -af " + busybox + " /data/busybox/busybox",
-                            "chmod 755 /data/busybox /data/busybox/busybox",
-                            "chcon u:object_r:system_file:s0 /data/busybox /data/busybox/busybox",
-                            "/data/busybox/busybox --install -s /data/busybox",
-                            "rm -f /data/busybox/su",
-                            "export PATH=/data/busybox:$PATH"
-                    );
-                }
-            }
-
-        new Async.CheckUpdates(this).execute();
-        new Async.LoadModules(this).execute();
-        new Async.LoadRepos(this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-
 
         // Start main activity
         Intent intent = new Intent(this, MainActivity.class);

app/src/main/java/com/topjohnwu/magisk/module/Module.java

@@ -6,6 +6,7 @@ import android.preference.PreferenceManager;
 import android.util.Log;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Utils;
 
 public class Module extends BaseModule {
@@ -14,7 +15,7 @@ public class Module extends BaseModule {
     private String mDisableFile;
 
     private String mZipUrl, mLogUrl;
-    private boolean mEnable, mRemove, mUpdateAvailable = false, mIsInstalled;
+    private boolean mEnable, mRemove, mUpdateAvailable = false;
 
     public Module(Context context, String path) {
 
@@ -38,75 +39,10 @@ public class Module extends BaseModule {
         if (mVersion == null)
             mVersion = context.getString(R.string.no_info_provided);
 
-        Log.d("Magisk","Module: Loaded module with ID of " + mId );
+        Logger.dh("Module id: " + mId);
 
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        mEnable = !Utils.itemExist(mDisableFile);
-
+        mRemove = Utils.itemExist(mRemoveFile);
-        if (this.mId != null && !this.mId.isEmpty()) {
-            String preferenceString = "repo_" + this.mId;
-            String preferenceKey = prefs.getString(preferenceString,"nope");
-            Log.d("Magisk", "Module: Checking for preference named " + preferenceString);
-            if (!preferenceKey.equals("nope")) {
-                Log.d("Magisk", "Module: repo_" + mId + " found.");
-                String entryString = prefs.getString("repo_" + mId, "");
-                String[] subStrings = entryString.split("\n");
-                for (String subKeys : subStrings) {
-                    String[] idEntry = subKeys.split("=", 2);
-                    if (idEntry[0].equals("id")) {
-                        if (idEntry.length != 2) {
-                            continue;
-                        }
-
-                        if (idEntry[1].equals(mId)) {
-                            Log.d("Magisk", "Module: Hey, I know " + mId + " is online...");
-                            mIsInstalled = true;
-                        } else mIsInstalled = false;
-                    }
-                    if (idEntry[0].equals("logUrl")) {
-                        mLogUrl = idEntry[1];
-                    }
-                    if (idEntry[0].equals("support")) {
-                        mSupportUrl = idEntry[1];
-                    }
-                    if (idEntry[0].equals("zipUrl")) {
-                        mZipUrl = idEntry[1];
-                    }
-                    if (idEntry[0].equals("donate")) {
-                        mDonateUrl = idEntry[1];
-                    }
-
-                    if (idEntry[0].equals("versionCode")) {
-                        if (idEntry.length != 2) {
-                            continue;
-                        }
-
-                        if (Integer.valueOf(idEntry[1]) > mVersionCode) {
-                            mUpdateAvailable = true;
-                            Log.d("Magisk", "Module: Hey, I have an update...");
-                        } else mUpdateAvailable = false;
-                    }
-                }
-
-
-            }
-
-            SharedPreferences.Editor editor = prefs.edit();
-            if (mIsInstalled) {
-                editor.putBoolean("repo-isInstalled_" + mId, true);
-            } else {
-                editor.putBoolean("repo-isInstalled_" + mId, false);
-            }
-
-            if (mUpdateAvailable) {
-                editor.putBoolean("repo-canUpdate_" + mId, true);
-            } else {
-                editor.putBoolean("repo-canUpdate_" + mId, false);
-            }
-            editor.apply();
-        }
-
-        mEnable = !Utils.fileExist(mDisableFile);
-        mRemove = Utils.fileExist(mRemoveFile);
 
     }
 

app/src/main/java/com/topjohnwu/magisk/utils/Async.java

@@ -35,6 +35,32 @@ import java.util.List;
 
 public class Async {
 
+    public static class BusyboxEnv extends AsyncTask<Void, Void, Void> {
+
+        Context mContext;
+
+        public BusyboxEnv(Context context) {
+            mContext = context;
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            String toolPath = mContext.getApplicationInfo().dataDir + "/busybox";
+            String busybox = mContext.getApplicationInfo().dataDir + "/lib/libbusybox.so";
+            if (Shell.rootAccess() && !Utils.commandExists("unzip") && !Utils.itemExist(toolPath)) {
+                Shell.su(true,
+                        "mkdir " + toolPath,
+                        "chmod 755 " + toolPath,
+                        "ln -s " + busybox + " " + toolPath + "/busybox",
+                        "for tool in $(" + toolPath + "/busybox --list); do",
+                        "ln -s " + busybox + " " + toolPath + "/$tool",
+                        "done"
+                );
+            }
+            return null;
+        }
+    }
+
     public static class CheckUpdates extends AsyncTask<Void, Void, Void> {
 
         private Context mContext;
@@ -100,7 +126,7 @@ public class Async {
                                             rootReceiver = new Utils.DownloadReceiver(mContext.getString(R.string.phh)) {
                                                 @Override
                                                 public void task(File file) {
-                                                    new FlashZIP(mContext, mName, file.getPath()).execute();
+                                                    new FlashZIP(mContext, mName, file.getPath()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                                 }
                                             };
                                             break;
@@ -110,7 +136,7 @@ public class Async {
                                             rootReceiver = new Utils.DownloadReceiver(mContext.getString(R.string.supersu)) {
                                                 @Override
                                                 public void task(File file) {
-                                                    new FlashZIP(mContext, mName, file.getPath()).execute();
+                                                    new FlashZIP(mContext, mName, file.getPath()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                                 }
                                             };
                                             break;
@@ -127,7 +153,7 @@ public class Async {
                                                 protected void done() {
                                                     Utils.downloadAndReceive(temp, rootReceiver, link, filename);
                                                 }
-                                            }.execute();
+                                            }.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                         }
                                     };
                                     Utils.downloadAndReceive(mContext, magiskReceiver, Utils.magiskLink, "latest_magisk.zip");
@@ -150,7 +176,7 @@ public class Async {
                                                     new Utils.DownloadReceiver(mContext.getString(R.string.phh)) {
                                                         @Override
                                                         public void task(File file) {
-                                                            new FlashZIP(mContext, mName, file.getPath()).execute();
+                                                            new FlashZIP(mContext, mName, file.getPath()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                                         }
                                                     },
                                                     Utils.phhLink, "phhsu.zip");
@@ -161,7 +187,7 @@ public class Async {
                                                     new Utils.DownloadReceiver(mContext.getString(R.string.supersu)) {
                                                         @Override
                                                         public void task(File file) {
-                                                            new FlashZIP(mContext, mName, file.getPath()).execute();
+                                                            new FlashZIP(mContext, mName, file.getPath()).executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
                                                         }
                                                     },
                                                     Utils.supersuLink, "supersu.zip");
@@ -186,17 +212,17 @@ public class Async {
         @Override
         protected Void doInBackground(Void... voids) {
             ModulesFragment.listModules.clear();
+            Logger.dh("Loading modules");
             List<String> magisk = Utils.getModList(Utils.MAGISK_PATH);
-            Log.d("Magisk", "Utils: Reload called, loading modules");
             List<String> magiskCache = Utils.getModList(Utils.MAGISK_CACHE_PATH);
 
             for (String mod : magisk) {
-                Log.d("Magisk", "Utils: Adding module from string " + mod);
+                Logger.dh("Adding modules from " + mod);
                 ModulesFragment.listModules.add(new Module(mContext, mod));
             }
 
             for (String mod : magiskCache) {
-                Log.d("Magisk", "Utils: Adding cache module from string " + mod);
+                Logger.dh("Adding cache modules from " + mod);
                 Module cacheMod = new Module(mContext, mod);
                 // Prevent people forgot to change module.prop
                 cacheMod.setCache();
@@ -205,6 +231,8 @@ public class Async {
 
             Collections.sort(ModulesFragment.listModules, new Utils.ModuleComparator());
 
+            Logger.dh("Module load done");
+
             return null;
         }
 

app/src/main/java/com/topjohnwu/magisk/utils/Shell.java

@@ -68,23 +68,6 @@ public class Shell {
         return rootStatus > 0;
     }
 
-
-    public static boolean GetRootStatus() {
-        if (Shell.sh("which su").contains("su")) {
-            Shell.su(("setprop magisk.root 0"));
-        }
-        try {
-            String rootStatus = Shell.su("getprop magisk.root").toString();
-            return Integer.valueOf(rootStatus).equals(1);
-        } catch (NullPointerException e) {
-            e.printStackTrace();
-            return false;
-        }
-
-    }
-
-    
-
     public static List<String> sh(String... commands) {
         List<String> res = Collections.synchronizedList(new ArrayList<String>());
 
@@ -126,46 +109,92 @@ public class Shell {
         return res;
     }
 
+    // Run with the same shell by default
     public static List<String> su(String... commands) {
+        return su(false, commands);
+    }
 
-        if(!Shell.rootAccess()) return null;
+    public static List<String> su(boolean newShell, String... commands) {
+        List<String> res;
+        Process process;
+        DataOutputStream STDIN;
+        StreamGobbler STDOUT;
 
-        rootOutList.clear();
+        if (newShell) {
+            res = Collections.synchronizedList(new ArrayList<String>());
+            try {
+                process = Runtime.getRuntime().exec(sh("getprop magisk.supath").get(0) + "/su");
+                STDIN = new DataOutputStream(process.getOutputStream());
+                STDOUT = new StreamGobbler(process.getInputStream(), res);
+            } catch (IOException e) {
+                try {
+                    // Improper root
+                    process = Runtime.getRuntime().exec("su");
+                    STDIN = new DataOutputStream(process.getOutputStream());
+                    STDOUT = new StreamGobbler(process.getInputStream(), res);
+                } catch (IOException err) {
+                    return null;
+                }
+            }
+            STDOUT.start();
+        } else {
+            process = rootShell;
+            STDIN = rootSTDIN;
+            STDOUT = rootSTDOUT;
+            res = rootOutList;
+            res.clear();
+        }
 
         try {
             for (String write : commands) {
-                rootSTDIN.write((write + "\n").getBytes("UTF-8"));
+                STDIN.write((write + "\n").getBytes("UTF-8"));
-                rootSTDIN.flush();
+                STDIN.flush();
+            }
+            if (newShell) {
+                STDIN.write("exit\n".getBytes("UTF-8"));
+                STDIN.flush();
+                process.waitFor();
+
+                try {
+                    STDIN.close();
+                } catch (IOException ignore) {
+                    // might be closed already
+                }
+
+                STDOUT.join();
+                process.destroy();
+            } else {
+                STDIN.write(("echo \' \'\n").getBytes("UTF-8"));
+                STDIN.flush();
+                STDIN.write(("echo \'-done-\'\n").getBytes("UTF-8"));
+                STDIN.flush();
+                while (true) {
+                    try {
+                        // Process terminated, it means the interactive shell has some issues
+                        process.exitValue();
+                        return null;
+                    } catch (IllegalThreadStateException e) {
+                        // Process still running, gobble output until done
+                        int end = res.size() - 1;
+                        if (end > 0) {
+                            if (res.get(end).equals("-done-")) {
+                                res.remove(end);
+                                res.remove(end - 1);
+                                break;
+                            }
+                        }
+                        try { STDOUT.join(100); } catch (InterruptedException err) { return null; }
+                    }
+                }
             }
-            rootSTDIN.write(("echo \' \'\n").getBytes("UTF-8"));
-            rootSTDIN.flush();
-            rootSTDIN.write(("echo \'-done-\'\n").getBytes("UTF-8"));
-            rootSTDIN.flush();
         } catch (IOException e) {
             if (!e.getMessage().contains("EPIPE")) {
                 return null;
             }
-        }
+        } catch(InterruptedException e) {
-
-        while (true) {
-            try {
-                // Process terminated, it means the interactive shell cannot be initialized
-                rootShell.exitValue();
             return null;
-            } catch (IllegalThreadStateException e) {
-                // Process still running, gobble output until done
-                int end = rootOutList.size() - 1;
-                if (rootOutList != null && end > 0) {
-                    if (rootOutList.get(end).equals("-done-")) {
-                        rootOutList.remove(end);
-                        rootOutList.remove(end - 1);
-                        break;
-                    }
-                }
-                try { rootSTDOUT.join(100); } catch (InterruptedException err) { return null; }
-            }
         }
 
-        return new ArrayList<>(rootOutList);
+        return new ArrayList<>(res);
     }
 }

app/src/main/java/com/topjohnwu/magisk/utils/Utils.java

@@ -69,20 +69,13 @@ public class Utils {
         } else {
             magiskVersion = Integer.parseInt(ret.get(0));
         }
-        if (!Shell.rootAccess()) {
+        String toolPath = context.getApplicationInfo().dataDir + "/busybox";
-            Snackbar.make(((Activity) context).findViewById(android.R.id.content), R.string.no_root_access, Snackbar.LENGTH_LONG).show();
+        Shell.su("PATH=$PATH:" + toolPath);
-        }
-        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("keep_root_off", false)) {
-            Utils.toggleRoot(false, context);
-        }
-        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("enable_quicktile", false)) {
-            Utils.SetupQuickSettingsTile(context);
-        }
     }
 
-    public static boolean fileExist(String path) {
+    public static boolean itemExist(String path) {
         List<String> ret;
-        String command = "if [ -f " + path + " ]; then echo true; else echo false; fi";
+        String command = "if [ -e " + path + " ]; then echo true; else echo false; fi";
         if (Shell.rootAccess()) {
             ret = Shell.su(command);
         } else {
@@ -91,22 +84,15 @@ public class Utils {
         return Boolean.parseBoolean(ret.get(0));
     }
 
-    public static boolean busyboxInstalled() {
+    public static boolean commandExists(String s) {
         List<String> ret;
-        String command = "if [ -d /data/busybox ]; then echo true; else echo false; fi";
+        String command = "if [ -z $(which " + s + ") ]; then echo false; else echo true; fi";
-        if (Shell.rootAccess()) {
-            ret = Shell.su(command);
-        } else {
         ret = Shell.sh(command);
-        }
         return Boolean.parseBoolean(ret.get(0));
     }
 
     public static boolean rootEnabled() {
-        List<String> ret;
+        return commandExists("su");
-        String command = "if [ -z $(which su) ]; then echo false; else echo true; fi";
-        ret = Shell.sh(command);
-        return Boolean.parseBoolean(ret.get(0));
     }
 
     public static boolean autoToggleEnabled(Context context) {

app/src/main/java/com/topjohnwu/magisk/utils/WebRequest.java

@@ -33,14 +33,12 @@ public class WebRequest {
      * @requestmethod - http request method
      */
     public static String makeWebServiceCall(String url, int requestmethod) {
-        Log.d("Magisk","WebRequest: Service call received for URL " + url);
         return makeWebServiceCall(url, requestmethod, null, false);
 
 
     }
 
     public static String makeWebServiceCall(String url, int requestmethod, boolean addNewLines) {
-        Log.d("Magisk","WebRequest: Service call(bool) received for URL " + url);
         return makeWebServiceCall(url, requestmethod, null, addNewLines);
 
     }
@@ -54,6 +52,7 @@ public class WebRequest {
      */
     public static String makeWebServiceCall(String urladdress, int requestmethod,
                                      HashMap<String, String> params, boolean addNewLines) {
+        Logger.dh("WebRequest: Service call " + urladdress);
         URL url;
         String response = "";
         try {

app/src/main/res/xml/defaultpref.xml

@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <Preference
+        android:key="theme"
+        android:defaultValue="Default"
+        />
     <Preference
         android:key="auto_blacklist"
         android:defaultValue="com.google.android.apps.walletnfcrel"