Massive Zip flashing refactoring

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

@@ -18,8 +18,8 @@ import android.widget.TextView;
 
 import com.topjohnwu.magisk.components.AboutCardRow;
 import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Logger;
-import com.topjohnwu.magisk.utils.Utils;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -86,7 +86,7 @@ public class AboutActivity extends Activity {
                 result = Html.fromHtml(changes);
             }
             appChangelog.setOnClickListener(v -> {
-                AlertDialog d = Utils.getAlertDialogBuilder(this)
+                AlertDialog d = new AlertDialogBuilder(this)
                         .setTitle(R.string.app_changelog)
                         .setMessage(result)
                         .setPositiveButton(android.R.string.ok, null)
@@ -105,7 +105,7 @@ public class AboutActivity extends Activity {
             } else {
                 result = Html.fromHtml(getString(R.string.app_developers_));
             }
-            AlertDialog d = Utils.getAlertDialogBuilder(this)
+            AlertDialog d = new AlertDialogBuilder(this)
                     .setTitle(R.string.app_developers)
                     .setMessage(result)
                     .setPositiveButton(android.R.string.ok, null)

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

@@ -16,8 +16,10 @@ import android.widget.CheckBox;
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import com.topjohnwu.magisk.asyncs.ProcessMagiskZip;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.components.Fragment;
-import com.topjohnwu.magisk.receivers.MagiskDlReceiver;
+import com.topjohnwu.magisk.receivers.DownloadReceiver;
 import com.topjohnwu.magisk.utils.CallbackEvent;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
@@ -67,13 +69,22 @@ public class InstallFragment extends Fragment implements CallbackEvent.Listener<
                 bootImage = getApplication().blockList.get(spinner.getSelectedItemPosition());
             }
             String filename = "Magisk-v" + getApplication().remoteMagiskVersion + ".zip";
-            Utils.getAlertDialogBuilder(getActivity())
+            new AlertDialogBuilder(getActivity())
                     .setTitle(getString(R.string.repo_install_title, getString(R.string.magisk)))
                     .setMessage(getString(R.string.repo_install_msg, filename))
                     .setCancelable(true)
                     .setPositiveButton(R.string.download_install, (dialogInterface, i) -> Utils.dlAndReceive(
                             getActivity(),
-                            new MagiskDlReceiver(bootImage, keepEncChkbox.isChecked(), keepVerityChkbox.isChecked()),
+                            new DownloadReceiver() {
+                                private String boot = bootImage;
+                                private boolean enc = keepEncChkbox.isChecked();
+                                private boolean verity = keepVerityChkbox.isChecked();
+
+                                @Override
+                                public void onDownloadDone(Uri uri) {
+                                    new ProcessMagiskZip(getActivity(), uri, boot, enc, verity).exec();
+                                }
+                            },
                             getApplication().magiskLink,
                             Utils.getLegalFilename(filename)))
                     .setNeutralButton(R.string.check_release_notes, (dialog, which) -> {
@@ -86,7 +97,7 @@ public class InstallFragment extends Fragment implements CallbackEvent.Listener<
             uninstallButton.setVisibility(View.GONE);
         } else {
             uninstallButton.setOnClickListener(vi -> {
-                Utils.getAlertDialogBuilder(getActivity())
+                new AlertDialogBuilder(getActivity())
                         .setTitle("Uninstall Magisk")
                         .setMessage("This will remove all modules, MagiskSU, and potentially re-encrypt your device\nAre you sure to process?")
                         .setPositiveButton(R.string.yes, (dialogInterface, i) -> {

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

@@ -26,6 +26,7 @@ import android.widget.Toast;
 
 import com.topjohnwu.magisk.asyncs.SerialTask;
 import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
 
@@ -121,7 +122,7 @@ public class MagiskLogFragment extends Fragment {
                     new Handler().postDelayed(() -> onOptionsItemSelected(mClickedMenuItem), 500);
                 }
             } else {
-                Snackbar.make(txtLog, R.string.permissionNotGranted, Snackbar.LENGTH_LONG).show();
+                SnackbarMaker.make(txtLog, R.string.permissionNotGranted, Snackbar.LENGTH_LONG).show();
             }
         }
     }
@@ -150,7 +151,7 @@ public class MagiskLogFragment extends Fragment {
 
                 case 1:
                     Shell.su("echo > " + MAGISK_LOG);
-                    Snackbar.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
                     return "";
 
                 case 2:

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

@@ -14,7 +14,7 @@ import android.widget.TextView;
 
 import com.github.clans.fab.FloatingActionButton;
 import com.topjohnwu.magisk.adapters.ModulesAdapter;
-import com.topjohnwu.magisk.asyncs.FlashZIP;
+import com.topjohnwu.magisk.asyncs.FlashZip;
 import com.topjohnwu.magisk.asyncs.LoadModules;
 import com.topjohnwu.magisk.components.Fragment;
 import com.topjohnwu.magisk.module.Module;
@@ -87,7 +87,7 @@ public class ModulesFragment extends Fragment implements CallbackEvent.Listener<
         if (requestCode == FETCH_ZIP_CODE && resultCode == Activity.RESULT_OK && data != null) {
             // Get the URI of the selected file
             final Uri uri = data.getData();
-            new FlashZIP(getActivity(), uri).exec();
+            new FlashZip(getActivity(), uri).exec();
         }
 
     }

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

@@ -16,6 +16,7 @@ import android.widget.Toast;
 import com.topjohnwu.magisk.asyncs.MagiskHide;
 import com.topjohnwu.magisk.asyncs.SerialTask;
 import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
@@ -188,7 +189,7 @@ public class SettingsActivity extends Activity {
                     enabled = prefs.getBoolean("magiskhide", false);
                     if (enabled) {
                         if (!getApplication().isSuClient) {
-                            Utils.getAlertDialogBuilder(getActivity())
+                            new AlertDialogBuilder(getActivity())
                                     .setTitle(R.string.no_magisksu_title)
                                     .setMessage(R.string.no_magisksu_msg)
                                     .setPositiveButton(R.string.understand, (dialog, which) -> new MagiskHide().enable())

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

@@ -15,6 +15,7 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.asyncs.CheckUpdates;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.components.Fragment;
 import com.topjohnwu.magisk.utils.CallbackEvent;
 import com.topjohnwu.magisk.utils.Logger;
@@ -97,7 +98,7 @@ public class StatusFragment extends Fragment implements CallbackEvent.Listener<V
 
         if (getApplication().magiskVersion < 0 && Shell.rootAccess() && !noDialog) {
             noDialog = true;
-            Utils.getAlertDialogBuilder(getActivity())
+            new AlertDialogBuilder(getActivity())
                     .setTitle(R.string.no_magisk_title)
                     .setMessage(R.string.no_magisk_msg)
                     .setCancelable(true)
@@ -229,7 +230,7 @@ public class StatusFragment extends Fragment implements CallbackEvent.Listener<V
         magiskCheckUpdatesProgress.setVisibility(View.GONE);
         mSwipeRefreshLayout.setRefreshing(false);
 
-        updateMagisk = Utils.getAlertDialogBuilder(getActivity())
+        updateMagisk = new AlertDialogBuilder(getActivity())
                 .setTitle(R.string.magisk_update_title)
                 .setMessage(getString(R.string.magisk_update_message, getApplication().remoteMagiskVersion))
                 .setCancelable(true)

app/src/main/java/com/topjohnwu/magisk/adapters/ApplicationAdapter.java

@@ -14,6 +14,7 @@ import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.asyncs.MagiskHide;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.utils.Utils;
 
 import java.util.ArrayList;
@@ -76,11 +77,10 @@ public class ApplicationAdapter extends RecyclerView.Adapter<ApplicationAdapter.
         if (SNLIST.contains(info.packageName)) {
             holder.checkBox.setChecked(true);
             holder.checkBox.setEnabled(false);
-            holder.itemView.setOnClickListener(v -> {
+            holder.itemView.setOnClickListener(v ->
-                Snackbar snackbar = Snackbar.make(holder.itemView, R.string.safetyNet_hide_notice, Snackbar.LENGTH_LONG);
+                SnackbarMaker.make(holder.itemView,
-                ((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setMaxLines(2);
+                        R.string.safetyNet_hide_notice, Snackbar.LENGTH_LONG).show()
-                snackbar.show();
+            );
-            });
         } else {
             holder.checkBox.setEnabled(true);
             holder.checkBox.setChecked(mHideList.contains(info.packageName));

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

@@ -13,6 +13,7 @@ import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.asyncs.SerialTask;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.module.Module;
 import com.topjohnwu.magisk.utils.Shell;
 
@@ -66,7 +67,7 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
             @Override
             protected void onPostExecute(Void v) {
                 int snack = isChecked ? R.string.disable_file_removed : R.string.disable_file_created;
-                Snackbar.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
+                SnackbarMaker.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
             }
         }.exec());
 
@@ -86,7 +87,7 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
             @Override
             protected void onPostExecute(Void v) {
                 int snack = removed ? R.string.remove_file_deleted : R.string.remove_file_created;
-                Snackbar.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
+                SnackbarMaker.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
                 updateDeleteButton(holder, module);
             }
         }.exec());

app/src/main/java/com/topjohnwu/magisk/adapters/PolicyAdapter.java

@@ -15,9 +15,10 @@ import android.widget.Switch;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.database.SuDatabaseHelper;
 import com.topjohnwu.magisk.superuser.Policy;
-import com.topjohnwu.magisk.utils.Utils;
 
 import java.util.HashSet;
 import java.util.List;
@@ -70,7 +71,7 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.policy = isChecked ? Policy.ALLOW : Policy.DENY;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_grant : R.string.su_snack_deny, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
@@ -80,7 +81,7 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.notification = isChecked;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_notif_on : R.string.su_snack_notif_off, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
@@ -90,18 +91,18 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.logging = isChecked;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_log_on : R.string.su_snack_log_off, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
-            holder.delete.setOnClickListener(v -> Utils.getAlertDialogBuilder(v.getContext())
+            holder.delete.setOnClickListener(v -> new AlertDialogBuilder(v.getContext())
                     .setTitle(R.string.su_revoke_title)
                     .setMessage(v.getContext().getString(R.string.su_revoke_msg, policy.appName))
                     .setPositiveButton(R.string.yes, (dialog, which) -> {
                         policyList.remove(position);
                         notifyItemRemoved(position);
                         notifyItemRangeChanged(position, policyList.size());
-                        Snackbar.make(holder.itemView, v.getContext().getString(R.string.su_snack_revoke, policy.appName),
+                        SnackbarMaker.make(holder.itemView, v.getContext().getString(R.string.su_snack_revoke, policy.appName),
                                 Snackbar.LENGTH_SHORT).show();
                         dbHelper.deletePolicy(policy.uid);
                     })

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

@@ -17,8 +17,10 @@ import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.asyncs.ProcessRepoZip;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.module.Repo;
-import com.topjohnwu.magisk.receivers.RepoDlReceiver;
+import com.topjohnwu.magisk.receivers.DownloadReceiver;
 import com.topjohnwu.magisk.utils.Utils;
 import com.topjohnwu.magisk.utils.WebWindow;
 
@@ -75,13 +77,18 @@ public class ReposAdapter extends RecyclerView.Adapter<ReposAdapter.ViewHolder>
         });
         holder.updateImage.setOnClickListener(view -> {
             String filename = repo.getName() + "-" + repo.getVersion() + ".zip";
-            Utils.getAlertDialogBuilder(context)
+            new AlertDialogBuilder(context)
                     .setTitle(context.getString(R.string.repo_install_title, repo.getName()))
                     .setMessage(context.getString(R.string.repo_install_msg, filename))
                     .setCancelable(true)
                     .setPositiveButton(R.string.download_install, (dialogInterface, i) -> Utils.dlAndReceive(
                             context,
-                            new RepoDlReceiver(),
+                            new DownloadReceiver() {
+                                @Override
+                                public void onDownloadDone(Uri uri) {
+                                    new ProcessRepoZip(activity, uri).exec();
+                                }
+                            },
                             repo.getZipUrl(),
                             Utils.getLegalFilename(filename)))
                     .setNegativeButton(R.string.no_thanks, null)

app/src/main/java/com/topjohnwu/magisk/asyncs/FlashZip.java

@@ -2,13 +2,12 @@ package com.topjohnwu.magisk.asyncs;
 
 import android.app.Activity;
 import android.app.ProgressDialog;
-import android.database.Cursor;
 import android.net.Uri;
-import android.provider.OpenableColumns;
 import android.widget.Toast;
 
 import com.topjohnwu.magisk.MagiskManager;
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
@@ -22,46 +21,29 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.List;
 
-public class FlashZIP extends SerialTask<Void, String, Integer> {
+public class FlashZip extends SerialTask<Void, String, Integer> {
 
-    protected Uri mUri;
+    private Uri mUri;
-    protected File mCachedFile;
+    private File mCachedFile, mScriptFile, mCheckFile;
 
     private String mFilename;
     private ProgressDialog progress;
 
-    public FlashZIP(Activity context, Uri uri, String filename) {
+    public FlashZip(Activity context, Uri uri) {
         super(context);
         mUri = uri;
-        mFilename = filename;
-    }
 
-    public FlashZIP(Activity context, Uri uri) {
+        mCachedFile = new File(magiskManager.getCacheDir(), "install.zip");
-        super(context);
+        mScriptFile = new File(magiskManager.getCacheDir(), "/META-INF/com/google/android/update-binary");
-        mUri = uri;
+        mCheckFile = new File(mScriptFile.getParent(), "updater-script");
 
         // Try to get the filename ourselves
-        Cursor c = magiskManager.getContentResolver().query(uri, null, null, null, null);
+        mFilename = Utils.getNameFromUri(magiskManager, mUri);
-        if (c != null) {
-            int nameIndex = c.getColumnIndex(OpenableColumns.DISPLAY_NAME);
-            c.moveToFirst();
-            if (nameIndex != -1) {
-                mFilename = c.getString(nameIndex);
-            }
-            c.close();
-        }
-        if (mFilename == null) {
-            int idx = uri.getPath().lastIndexOf('/');
-            mFilename = uri.getPath().substring(idx + 1);
-        }
     }
 
-    protected void preProcessing() throws Throwable {
+    private void copyToCache() throws Throwable {
-    }
-
-    protected void copyToCache() throws Throwable {
         publishProgress(magiskManager.getString(R.string.copying_msg));
-        mCachedFile = new File(magiskManager.getCacheDir().getAbsolutePath() + "/install.zip");
+
         if (mCachedFile.exists() && !mCachedFile.delete()) {
             Logger.error("FlashZip: Error while deleting already existing file");
             throw new IOException();
@@ -73,9 +55,9 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
             byte buffer[] = new byte[1024];
             int length;
             if (in == null) throw new FileNotFoundException();
-            while ((length = in.read(buffer)) > 0) {
+            while ((length = in.read(buffer)) > 0)
                 outputStream.write(buffer, 0, length);
-            }
+
             Logger.dev("FlashZip: File created successfully - " + mCachedFile.getPath());
         } catch (FileNotFoundException e) {
             Logger.error("FlashZip: Invalid Uri");
@@ -86,13 +68,21 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
         }
     }
 
-    protected boolean unzipAndCheck() {
+    protected boolean unzipAndCheck() throws Exception {
         ZipUtils.unzip(mCachedFile, mCachedFile.getParentFile(), "META-INF/com/google/android");
         List<String> ret;
-        ret = Utils.readFile(mCachedFile.getParent() + "/META-INF/com/google/android/updater-script");
+        ret = Utils.readFile(mCheckFile.getPath());
         return Utils.isValidShellResponse(ret) && ret.get(0).contains("#MAGISK");
     }
 
+    private int cleanup(int ret) {
+        Shell.su(
+                "rm -rf " + mCachedFile.getParent() + "/*",
+                "rm -rf " + MagiskManager.TMP_FOLDER_PATH
+        );
+        return ret;
+    }
+
     @Override
     protected void onPreExecute() {
         progress = new ProgressDialog(activity);
@@ -110,17 +100,11 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
         Logger.dev("FlashZip Running... " + mFilename);
         List<String> ret;
         try {
-            preProcessing();
             copyToCache();
-        } catch (Throwable e) {
+            if (!unzipAndCheck()) return cleanup(0);
-            e.printStackTrace();
-            return -1;
-        }
-        if (!unzipAndCheck()) return 0;
             publishProgress(magiskManager.getString(R.string.zip_install_progress_msg, mFilename));
             ret = Shell.su(
-                "BOOTMODE=true sh " + mCachedFile.getParent() +
+                    "BOOTMODE=true sh " + mScriptFile + " dummy 1 " + mCachedFile,
-                        "/META-INF/com/google/android/update-binary dummy 1 " + mCachedFile.getPath(),
                     "if [ $? -eq 0 ]; then echo true; else echo false; fi"
             );
             if (!Utils.isValidShellResponse(ret)) return -1;
@@ -128,14 +112,13 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
             for (String line : ret) {
                 Logger.dev(line);
             }
-        Shell.su(
+            if (Boolean.parseBoolean(ret.get(ret.size() - 1)))
-                "rm -rf " + mCachedFile.getParent() + "/*",
+                return cleanup(1);
-                "rm -rf " + MagiskManager.TMP_FOLDER_PATH
+
-        );
+        } catch (Throwable e) {
-        if (Boolean.parseBoolean(ret.get(ret.size() - 1))) {
+            e.printStackTrace();
-            return 1;
         }
-        return -1;
+        return cleanup(-1);
     }
 
     // -1 = error, manual install; 0 = invalid zip; 1 = success
@@ -146,8 +129,7 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
         switch (result) {
             case -1:
                 Toast.makeText(magiskManager, magiskManager.getString(R.string.install_error), Toast.LENGTH_LONG).show();
-                Toast.makeText(magiskManager, magiskManager.getString(R.string.manual_install_1, mUri.getPath()), Toast.LENGTH_LONG).show();
+                Utils.showUriSnack(activity, mUri);
-                Toast.makeText(magiskManager, magiskManager.getString(R.string.manual_install_2), Toast.LENGTH_LONG).show();
                 break;
             case 0:
                 Toast.makeText(magiskManager, magiskManager.getString(R.string.invalid_zip), Toast.LENGTH_LONG).show();
@@ -162,7 +144,7 @@ public class FlashZIP extends SerialTask<Void, String, Integer> {
         magiskManager.updateCheckDone.trigger();
         new LoadModules(activity).exec();
 
-        Utils.getAlertDialogBuilder(activity)
+        new AlertDialogBuilder(activity)
                 .setTitle(R.string.reboot_title)
                 .setMessage(R.string.reboot_msg)
                 .setPositiveButton(R.string.reboot, (dialogInterface, i) -> Shell.su(true, "reboot"))

app/src/main/java/com/topjohnwu/magisk/asyncs/ProcessMagiskZip.java

@@ -0,0 +1,93 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.net.Uri;
+
+import com.topjohnwu.magisk.MagiskManager;
+import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.utils.Logger;
+import com.topjohnwu.magisk.utils.Shell;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.ZipUtils;
+
+import java.io.File;
+
+public class ProcessMagiskZip extends ParallelTask<Void, Void, Boolean> {
+
+    private Uri mUri;
+    private ProgressDialog progressDialog;
+    private String mBoot;
+    private boolean mEnc, mVerity;
+
+    public ProcessMagiskZip(Activity context, Uri uri, String boot, boolean enc, boolean verity) {
+        super(context);
+        mUri = uri;
+        mBoot = boot;
+        mEnc = enc;
+        mVerity = verity;
+    }
+
+    @Override
+    protected void onPreExecute() {
+        progressDialog = ProgressDialog.show(activity,
+                activity.getString(R.string.zip_install_progress_title),
+                activity.getString(R.string.zip_install_unzip_zip_msg));
+    }
+
+    @Override
+    protected Boolean doInBackground(Void... params) {
+        if (Shell.rootAccess()) {
+            try {
+                // We might not have busybox yet, unzip with Java
+                // We shall have complete busybox after Magisk installation
+                File tempdir = new File(magiskManager.getCacheDir(), "magisk");
+                ZipUtils.unzip(magiskManager.getContentResolver().openInputStream(mUri), tempdir);
+                // Running in parallel mode, open new shell
+                Shell.su(true,
+                        "echo \"BOOTIMAGE=/dev/block/" + mBoot + "\" > /dev/.magisk",
+                        "echo \"KEEPFORCEENCRYPT=" + String.valueOf(mEnc) + "\" >> /dev/.magisk",
+                        "echo \"KEEPVERITY=" + String.valueOf(mVerity) + "\" >> /dev/.magisk",
+                        "mkdir -p " + MagiskManager.TMP_FOLDER_PATH,
+                        "cp -af " + tempdir + "/. " + MagiskManager.TMP_FOLDER_PATH + "/magisk",
+                        "mv -f " + tempdir + "/META-INF " + magiskManager.getCacheDir() + "/META-INF",
+                        "rm -rf " + tempdir
+                );
+            } catch (Exception e) {
+                Logger.error("ProcessMagiskZip: Error!");
+                e.printStackTrace();
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected void onPostExecute(Boolean result) {
+        progressDialog.dismiss();
+        if (result)
+            new FlashZip(activity, mUri) {
+                @Override
+                protected boolean unzipAndCheck() throws Exception {
+                    // Don't need to check, as it is downloaded in correct form
+                    return true;
+                }
+                @Override
+                protected void onSuccess() {
+                    new SerialTask<Void, Void, Void>(activity) {
+                        @Override
+                        protected Void doInBackground(Void... params) {
+                            Shell.su("setprop magisk.version "
+                                    + String.valueOf(magiskManager.remoteMagiskVersion));
+                            magiskManager.updateCheckDone.trigger();
+                            return null;
+                        }
+                    }.exec();
+                    super.onSuccess();
+                }
+            }.exec();
+        else
+            Utils.showUriSnack(activity, mUri);
+    }
+}

app/src/main/java/com/topjohnwu/magisk/asyncs/ProcessRepoZip.java

@@ -0,0 +1,77 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.net.Uri;
+import android.widget.Toast;
+
+import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.utils.ByteArrayInOutStream;
+import com.topjohnwu.magisk.utils.Logger;
+import com.topjohnwu.magisk.utils.Shell;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.ZipUtils;
+
+import java.io.OutputStream;
+
+public class ProcessRepoZip extends ParallelTask<Void, Void, Boolean> {
+
+    private Uri mUri;
+    private ProgressDialog progressDialog;
+
+    public ProcessRepoZip(Activity context, Uri uri) {
+        super(context);
+        mUri = uri;
+    }
+
+    @Override
+    protected void onPreExecute() {
+        progressDialog = ProgressDialog.show(activity,
+                activity.getString(R.string.zip_install_progress_title),
+                activity.getString(R.string.zip_install_process_zip_msg));
+    }
+
+    @Override
+    protected Boolean doInBackground(Void... params) {
+        // Create a buffer in memory for input/output
+        ByteArrayInOutStream buffer = new ByteArrayInOutStream();
+
+        try {
+            // First remove top folder (the folder with the repo name) in Github source zip
+            ZipUtils.removeTopFolder(activity.getContentResolver().openInputStream(mUri), buffer);
+
+            // Then sign the zip for the first time
+            ZipUtils.signZip(activity, buffer.getInputStream(), buffer, false);
+
+            // Adjust the zip to prevent unzip issues
+            ZipUtils.adjustZip(buffer);
+
+            // Finally, sign the whole zip file again
+            ZipUtils.signZip(activity, buffer.getInputStream(), buffer, true);
+
+            // Write it back to the downloaded zip
+            try (OutputStream out = activity.getContentResolver().openOutputStream(mUri)) {
+                buffer.writeTo(out);
+            }
+            return true;
+        } catch (Exception e) {
+            Logger.error("ProcessRepoZip: Error!");
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    @Override
+    protected void onPostExecute(Boolean result) {
+        progressDialog.dismiss();
+        if (result) {
+            if (Shell.rootAccess())
+                new FlashZip(activity, mUri).exec();
+            else
+                Utils.showUriSnack(activity, mUri);
+
+        } else {
+            Toast.makeText(activity, R.string.process_error, Toast.LENGTH_LONG).show();
+        }
+    }
+}

app/src/main/java/com/topjohnwu/magisk/components/SnackbarMaker.java

@@ -0,0 +1,41 @@
+package com.topjohnwu.magisk.components;
+
+import android.app.Activity;
+import android.support.annotation.StringRes;
+import android.support.design.widget.Snackbar;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.TextView;
+
+import butterknife.ButterKnife;
+
+public class SnackbarMaker {
+
+    public static Snackbar make(Activity activity, CharSequence text, int duration) {
+        View view = activity.findViewById(android.R.id.content);
+        return make(view, text, duration);
+    }
+
+    public static Snackbar make(Activity activity, @StringRes int resId, int duration) {
+        return make(activity, activity.getString(resId), duration);
+    }
+
+    public static Snackbar make(View view, CharSequence text, int duration) {
+        Snackbar snack = Snackbar.make(view, text, duration);
+        setup(snack);
+        return snack;
+    }
+
+    public static Snackbar make(View view, @StringRes int resId, int duration) {
+        Snackbar snack = Snackbar.make(view, resId, duration);
+        setup(snack);
+        return snack;
+    }
+
+    private static void setup(Snackbar snack) {
+        TextView text = ButterKnife.findById(snack.getView(), android.support.design.R.id.snackbar_text);
+        text.setMaxLines(2);
+        text.setEllipsize(TextUtils.TruncateAt.START);
+    }
+
+}

app/src/main/java/com/topjohnwu/magisk/receivers/MagiskDlReceiver.java

@@ -1,68 +0,0 @@
-package com.topjohnwu.magisk.receivers;
-
-import android.net.Uri;
-
-import com.topjohnwu.magisk.MagiskManager;
-import com.topjohnwu.magisk.R;
-import com.topjohnwu.magisk.asyncs.FlashZIP;
-import com.topjohnwu.magisk.asyncs.SerialTask;
-import com.topjohnwu.magisk.utils.Shell;
-import com.topjohnwu.magisk.utils.ZipUtils;
-
-import java.io.File;
-
-public class MagiskDlReceiver extends DownloadReceiver {
-
-    String mBoot;
-    boolean mEnc, mVerity;
-
-    public MagiskDlReceiver(String bootImage, boolean keepEnc, boolean keepVerity) {
-        mBoot = bootImage;
-        mEnc = keepEnc;
-        mVerity = keepVerity;
-    }
-
-    @Override
-    public void onDownloadDone(Uri uri) {
-        new FlashZIP(activity, uri, mFilename) {
-
-            @Override
-            protected void preProcessing() throws Throwable {
-                Shell.su(
-                        "echo \"BOOTIMAGE=/dev/block/" + mBoot + "\" > /dev/.magisk",
-                        "echo \"KEEPFORCEENCRYPT=" + String.valueOf(mEnc) + "\" >> /dev/.magisk",
-                        "echo \"KEEPVERITY=" + String.valueOf(mVerity) + "\" >> /dev/.magisk"
-                );
-            }
-
-            @Override
-            protected boolean unzipAndCheck() {
-                publishProgress(activity.getString(R.string.zip_install_unzip_zip_msg));
-                if (Shell.rootAccess()) {
-                    // We might not have busybox yet, unzip with Java
-                    // We will have complete busybox after Magisk installation
-                    ZipUtils.unzip(mCachedFile, new File(mCachedFile.getParent(), "magisk"));
-                    Shell.su(
-                            "mkdir -p " + MagiskManager.TMP_FOLDER_PATH + "/magisk",
-                            "cp -af " + mCachedFile.getParent() + "/magisk/. " + MagiskManager.TMP_FOLDER_PATH + "/magisk",
-                            "mv -f " + mCachedFile.getParent() + "/magisk/META-INF " + mCachedFile.getParent() + "/META-INF"
-                    );
-                }
-                return true;
-            }
-
-            @Override
-            protected void onSuccess() {
-                new SerialTask<Void, Void, Void>() {
-                    @Override
-                    protected Void doInBackground(Void... params) {
-                        Shell.su("setprop magisk.version "
-                                + String.valueOf(((MagiskManager) activity.getApplicationContext()).remoteMagiskVersion));
-                        return null;
-                    }
-                }.exec();
-                super.onSuccess();
-            }
-        }.exec();
-    }
-}

app/src/main/java/com/topjohnwu/magisk/receivers/RepoDlReceiver.java

@@ -1,42 +0,0 @@
-package com.topjohnwu.magisk.receivers;
-
-import android.net.Uri;
-
-import com.topjohnwu.magisk.R;
-import com.topjohnwu.magisk.asyncs.FlashZIP;
-import com.topjohnwu.magisk.utils.ByteArrayInOutStream;
-import com.topjohnwu.magisk.utils.ZipUtils;
-
-import java.io.OutputStream;
-
-public class RepoDlReceiver extends DownloadReceiver {
-    @Override
-    public void onDownloadDone(Uri uri) {
-        // Flash the zip
-        new FlashZIP(activity, uri, mFilename){
-            @Override
-            protected void preProcessing() throws Throwable {
-                // Process and sign the zip
-                publishProgress(activity.getString(R.string.zip_install_process_zip_msg));
-                ByteArrayInOutStream buffer = new ByteArrayInOutStream();
-
-                // First remove top folder (the folder with the repo name) in Github source zip
-                ZipUtils.removeTopFolder(activity.getContentResolver().openInputStream(mUri), buffer);
-
-                // Then sign the zip for the first time
-                ZipUtils.signZip(activity, buffer.getInputStream(), buffer, false);
-
-                // Adjust the zip to prevent unzip issues
-                ZipUtils.adjustZip(buffer);
-
-                // Finally, sign the whole zip file again
-                ZipUtils.signZip(activity, buffer.getInputStream(), buffer, true);
-
-                // Write it back to the downloaded zip
-                try (OutputStream out = activity.getContentResolver().openOutputStream(mUri)) {
-                    buffer.writeTo(out);
-                }
-            }
-        }.exec();
-    }
-}

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

@@ -7,17 +7,19 @@ import android.content.Context;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
+import android.database.Cursor;
 import android.net.Uri;
 import android.os.Environment;
+import android.provider.OpenableColumns;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
-import android.support.v7.app.AlertDialog;
 import android.text.TextUtils;
 import android.widget.Toast;
 
 import com.topjohnwu.magisk.MagiskManager;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.asyncs.LoadRepos;
-import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.database.RepoDatabaseHelper;
 import com.topjohnwu.magisk.receivers.DownloadReceiver;
 
@@ -117,15 +119,6 @@ public class Utils {
         return null;
     }
 
-    public static AlertDialog.Builder getAlertDialogBuilder(Context context) {
-//        if (((MagiskManager) context.getApplicationContext()).isDarkTheme) {
-//            return new AlertDialog.Builder(context, R.style.AlertDialog_dh);
-//        } else {
-//            return new AlertDialog.Builder(context);
-//        }
-        return new AlertDialogBuilder(context);
-    }
-
     public static boolean lowercaseContains(CharSequence string, CharSequence nonNullLowercaseSearch) {
         return !TextUtils.isEmpty(string) && string.toString().toLowerCase().contains(nonNullLowercaseSearch);
     }
@@ -164,4 +157,29 @@ public class Utils {
         new RepoDatabaseHelper(activity).clearRepo();
         Toast.makeText(activity, R.string.repo_cache_cleared, Toast.LENGTH_SHORT).show();
     }
+
+    public static String getNameFromUri(Context context, Uri uri) {
+        String name = null;
+        try (Cursor c = context.getContentResolver().query(uri, null, null, null, null)) {
+            if (c != null) {
+                int nameIndex = c.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                if (nameIndex != -1) {
+                    c.moveToFirst();
+                    name = c.getString(nameIndex);
+                }
+            }
+        }
+        if (name == null) {
+            int idx = uri.getPath().lastIndexOf('/');
+            name = uri.getPath().substring(idx + 1);
+        }
+        return name;
+    }
+
+    public static void showUriSnack(Activity activity, Uri uri) {
+        SnackbarMaker.make(activity, activity.getString(R.string.internal_storage,
+                "/MagiskManager/" + Utils.getNameFromUri(activity, uri)),
+                Snackbar.LENGTH_LONG)
+                .setAction(R.string.ok, (v)->{}).show();
+    }
 }

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

@@ -6,10 +6,12 @@ import android.webkit.WebResourceRequest;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
 
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+
 public class WebWindow {
 
 public WebWindow(String title, String url, Context context) {
-    AlertDialog.Builder alert = Utils.getAlertDialogBuilder(context);
+    AlertDialog.Builder alert = new AlertDialogBuilder(context);
     alert.setTitle(title);
 
     Logger.dev("WebView: URL = " + url);

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

@@ -48,6 +48,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Enumeration;
+import java.util.Iterator;
 import java.util.Locale;
 import java.util.Map;
 import java.util.TreeMap;
@@ -88,7 +89,7 @@ public class ZipUtils {
         buffer.setBuffer(zipAdjust(buffer.toByteArray(), buffer.size()));
     }
 
-    public static void removeTopFolder(InputStream in, OutputStream out) {
+    public static void removeTopFolder(InputStream in, OutputStream out) throws IOException {
         try {
             JarInputStream source = new JarInputStream(in);
             JarOutputStream dest = new JarOutputStream(out);
@@ -113,16 +114,20 @@ public class ZipUtils {
             dest.close();
             in.close();
         } catch (IOException e) {
-            e.printStackTrace();
             Logger.dev("ZipUtils: removeTopFolder IO error!");
+            throw e;
         }
     }
 
-    public static void unzip(File file, File folder) {
+    public static void unzip(File file, File folder) throws Exception {
         unzip(file, folder, "");
     }
 
-    public static void unzip(File file, File folder, String path) {
+    public static void unzip(InputStream file, File folder) throws Exception {
+        unzip(file, folder, "");
+    }
+
+    public static void unzip(File file, File folder, String path) throws Exception {
         int count;
         FileOutputStream out;
         File dest;
@@ -133,32 +138,56 @@ public class ZipUtils {
             Enumeration<JarEntry> e = zipfile.entries();
             while(e.hasMoreElements()) {
                 entry = e.nextElement();
-                if (!entry.getName().contains(path)
+                if (!entry.getName().contains(path) || entry.isDirectory())
-                        || entry.getName().charAt(entry.getName().length() - 1) == '/') {
                     // Ignore directories, only create files
                     continue;
-                }
                 Logger.dev("ZipUtils: Extracting: " + entry);
                 is = zipfile.getInputStream(entry);
                 dest = new File(folder, entry.getName());
-                if (dest.getParentFile().mkdirs()) {
+                if (dest.getParentFile().mkdirs())
                     dest.createNewFile();
-                }
                 out = new FileOutputStream(dest);
-                while ((count = is.read(data, 0, 4096)) != -1) {
+                while ((count = is.read(data, 0, 4096)) != -1)
                     out.write(data, 0, count);
-                }
                 out.flush();
                 out.close();
                 is.close();
             }
         } catch(Exception e) {
             e.printStackTrace();
+            throw e;
+        }
+    }
+
+    public static void unzip(InputStream file, File folder, String path) throws Exception {
+        int count;
+        FileOutputStream out;
+        File dest;
+        JarEntry entry;
+        byte data[] = new byte[4096];
+        try (JarInputStream zipfile = new JarInputStream(file)) {
+            while((entry = zipfile.getNextJarEntry()) != null) {
+                if (!entry.getName().contains(path) || entry.isDirectory())
+                    // Ignore directories, only create files
+                    continue;
+                Logger.dev("ZipUtils: Extracting: " + entry);
+                dest = new File(folder, entry.getName());
+                if (dest.getParentFile().mkdirs())
+                    dest.createNewFile();
+                out = new FileOutputStream(dest);
+                while ((count = zipfile.read(data, 0, 4096)) != -1)
+                    out.write(data, 0, count);
+                out.flush();
+                out.close();
+            }
+        } catch(Exception e) {
+            e.printStackTrace();
+            throw e;
         }
     }
 
     public static void signZip(Context context, InputStream inputStream,
-                               OutputStream outputStream, boolean signWholeFile) {
+                               OutputStream outputStream, boolean signWholeFile) throws Exception {
         JarMap inputJar;
         int hashes = 0;
         try {
@@ -192,6 +221,7 @@ public class ZipUtils {
             }
         } catch (Exception e) {
             e.printStackTrace();
+            throw e;
         }
     }
 
@@ -227,6 +257,13 @@ public class ZipUtils {
         public Manifest getManifest() {
             return manifest;
         }
+        public Enumeration<JarEntry> entries() {
+            Iterator<Map.Entry<String, Pair<JarEntry, ByteArrayOutputStream> >> i = entrySet().iterator();
+            ArrayList<JarEntry> list = new ArrayList<>();
+            while (i.hasNext())
+                list.add(i.next().getValue().first);
+            return Collections.enumeration(list);
+        }
     }
 
     /**

app/src/main/res/values/strings.xml

@@ -90,6 +90,7 @@
     <string name="permissionNotGranted">This feature will not work without permission to write external storage.</string>
     <string name="no_thanks">No thanks</string>
     <string name="yes">Yes</string>
+    <string name="ok">OK</string>
     <string name="repo_install_title">Install %1$s</string>
     <string name="repo_install_msg">Do you want to install %1$s ?</string>
     <string name="download_install">Download &amp; install</string>
@@ -120,6 +121,8 @@
     <string name="no_magisksu_title">Not using MagiskSU!</string>
     <string name="no_magisksu_msg">You are not rooted with MagiskSU, using MagiskHide itself might not be enough!\nIt\'s not officially supported, and you would need additional tools (e.g suhide) to pass Safety Net.</string>
     <string name="understand">I understand</string>
+    <string name="process_error">Process error</string>
+    <string name="internal_storage">The zip is stored in:\n[Internal Storage]%1$s</string>
 
     <!--Settings Activity -->
     <string name="settings_general_category">General</string>