com.avalond.ad_blocak.main.StartFragment.java Source code

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Here is the source code for com.avalond.ad_blocak.main.StartFragment.java

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/*
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Copyright (C) 2016 Julian Andres Klode <jak@jak-linux.org>
 * Copyright (C) 2016 avalond <agonyice0115@gmail.com>
 */
package com.avalond.ad_blocak.main;

import static android.app.Activity.RESULT_OK;

import com.avalond.ad_blocak.Configuration;
import com.avalond.ad_blocak.FileHelper;
import com.avalond.ad_blocak.MainActivity;
import com.avalond.ad_blocak.R;
import com.avalond.ad_blocak.vpn.AdVpnService;
import com.avalond.ad_blocak.vpn.Command;
import java.io.File;

import android.app.AlertDialog;
import android.app.PendingIntent;
import android.content.Intent;
import android.net.VpnService;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Switch;
import android.widget.TextView;

/**
 * @author kevin
 */

public class StartFragment extends Fragment {
    public static final int REQUEST_START_VPN = 1;
    private static final String TAG = "StartFragment";

    public StartFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_start, container, false);
        Switch switchOnBoot = (Switch) rootView.findViewById(R.id.switch_onboot);

        ImageView view = (ImageView) rootView.findViewById(R.id.start_button);

        TextView stateText = (TextView) rootView.findViewById(R.id.state_textview);
        stateText.setText(getString(AdVpnService.vpnStatusToTextId(AdVpnService.vpnStatus)));

        view.setOnLongClickListener(v -> {
            if (AdVpnService.vpnStatus != AdVpnService.VPN_STATUS_STOPPED) {
                Log.i(TAG, "Attempting to disconnect");

                Intent intent = new Intent(getActivity(), AdVpnService.class);
                intent.putExtra("COMMAND", Command.STOP.ordinal());
                getActivity().startService(intent);
            } else {
                checkHostsFilesAndStartService();
            }
            return true;
        });

        switchOnBoot.setChecked(MainActivity.config.autoStart);
        switchOnBoot.setOnCheckedChangeListener((buttonView, isChecked) -> {
            MainActivity.config.autoStart = isChecked;
            FileHelper.writeSettings(getContext(), MainActivity.config);
        });

        return rootView;
    }

    private void checkHostsFilesAndStartService() {
        if (!areHostsFilesExistant()) {
            new AlertDialog.Builder(getActivity()).setIcon(R.drawable.ic_warning)
                    .setTitle(R.string.missing_hosts_files_title).setMessage(R.string.missing_hosts_files_message)
                    .setNegativeButton(R.string.button_no, (dialog, which) -> {
                        /* Do nothing */
                    }).setPositiveButton(R.string.button_yes, (dialog, which) -> startService()).show();
            return;
        }
        startService();
    }

    private void startService() {
        Log.i(TAG, "Attempting to connect");
        Intent intent = VpnService.prepare(getContext());
        if (intent != null) {
            startActivityForResult(intent, REQUEST_START_VPN);
        } else {
            onActivityResult(REQUEST_START_VPN, RESULT_OK, null);
        }
    }

    /**
     * Check if all configured hosts files exist.
     *
     * @return true if all host files exist or no host files were configured.
     */
    private boolean areHostsFilesExistant() {
        if (!MainActivity.config.hosts.enabled) {
            return true;
        }
        for (Configuration.Item item : MainActivity.config.hosts.items) {
            File file = FileHelper.getItemFile(getContext(), item);
            if (item.state != Configuration.Item.STATE_IGNORE && file != null) {
                if (!file.exists()) {
                    return false;
                }
            }
        }
        return true;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        Log.d(TAG, "onActivityResult: Received result=" + resultCode + " for request=" + requestCode);
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_START_VPN && resultCode == RESULT_OK) {
            Log.d("MainActivity", "onActivityResult: Starting service");
            Intent intent = new Intent(getContext(), AdVpnService.class);
            intent.putExtra("COMMAND", Command.START.ordinal());
            intent.putExtra("NOTIFICATION_INTENT",
                    PendingIntent.getActivity(getContext(), 0, new Intent(getContext(), MainActivity.class), 0));
            getContext().startService(intent);
        }
    }
}