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

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Java
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package com.topjohnwu.magisk.utils;
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import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.HorizontalScrollView;
import android.widget.ProgressBar;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;
import com.topjohnwu.magisk.R;
import com.topjohnwu.magisk.utils.Utils;
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import java.io.File;
import java.io.FileWriter;
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import java.io.IOException;
import java.util.Calendar;
import java.util.List;
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import butterknife.BindView;
import butterknife.ButterKnife;
public class LogFragment extends Fragment {
private static final String MAGISK_LOG = "/cache/magisk.log";
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@BindView(R.id.txtLog) TextView txtLog;
@BindView(R.id.svLog) ScrollView svLog;
@BindView(R.id.hsvLog) HorizontalScrollView hsvLog;
@BindView(R.id.progressBar) ProgressBar progressBar;
private MenuItem mClickedMenuItem;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setHasOptionsMenu(true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.log_fragment, container, false);
ButterKnife.bind(this, view);
txtLog.setTextIsSelectable(true);
reloadErrorLog();
setHasOptionsMenu(true);
return view;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_log, menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
mClickedMenuItem = item;
switch (item.getItemId()) {
case R.id.menu_refresh:
reloadErrorLog();
return true;
case R.id.menu_send:
try {
send();
} catch (NullPointerException ignored) {
}
return true;
case R.id.menu_save:
save();
return true;
case R.id.menu_clear:
clear();
return true;
}
return super.onOptionsItemSelected(item);
}
private void reloadErrorLog() {
new LogsManager(true).execute();
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svLog.post(() -> svLog.scrollTo(0, txtLog.getHeight()));
hsvLog.post(() -> hsvLog.scrollTo(0, 0));
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}
private void clear() {
new LogsManager(false).execute();
reloadErrorLog();
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}
private void send() {
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(save()));
sendIntent.setType("application/html");
startActivity(Intent.createChooser(sendIntent, getResources().getString(R.string.menuSend)));
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 0) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (mClickedMenuItem != null) {
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new Handler().postDelayed(() -> onOptionsItemSelected(mClickedMenuItem), 500);
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}
} else {
Snackbar.make(txtLog, R.string.permissionNotGranted, Snackbar.LENGTH_LONG).show();
}
}
}
@SuppressLint("DefaultLocale")
private File save() {
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
return null;
}
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
Snackbar.make(txtLog, R.string.sdcard_not_writable, Snackbar.LENGTH_LONG).show();
return null;
}
Calendar now = Calendar.getInstance();
String filename = String.format(
"magisk_%s_%04d%02d%02d_%02d%02d%02d.log", "error",
now.get(Calendar.YEAR), now.get(Calendar.MONTH) + 1,
now.get(Calendar.DAY_OF_MONTH), now.get(Calendar.HOUR_OF_DAY),
now.get(Calendar.MINUTE), now.get(Calendar.SECOND));
File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Magisk/");
dir.mkdir();
File targetFile = new File(dir, filename);
List<String> in = Utils.readFile(MAGISK_LOG);
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try {
FileWriter out = new FileWriter(targetFile);
for (String line : in) {
out.write(line + "\n");
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}
out.close();
Toast.makeText(getActivity(), targetFile.toString(), Toast.LENGTH_LONG).show();
return targetFile;
} catch (IOException e) {
Toast.makeText(getActivity(), getResources().getString(R.string.logs_save_failed) + "\n" + e.getMessage(), Toast.LENGTH_LONG).show();
return null;
}
}
private class LogsManager extends AsyncTask<Void, Integer, String> {
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private boolean readLog;
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public LogsManager(boolean read) {
readLog = read;
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}
@Override
protected void onPreExecute() {
txtLog.setText("");
}
@Override
protected String doInBackground(Void... voids) {
if (readLog) {
List<String> logList = Utils.readFile(MAGISK_LOG);
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StringBuilder llog = new StringBuilder(15 * 10 * 1024);
for (String s : logList) {
llog.append(s).append("\n");
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}
return llog.toString();
} else {
if (Utils.removeFile(MAGISK_LOG)) {
Snackbar.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
} else {
Snackbar.make(txtLog, R.string.logs_clear_failed, Snackbar.LENGTH_SHORT).show();
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}
return "";
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}
}
@Override
protected void onPostExecute(String llog) {
progressBar.setVisibility(View.GONE);
txtLog.setText(llog);
if (llog.length() == 0)
txtLog.setText(R.string.log_is_empty);
}
}
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}