232 lines
6.4 KiB
Java
232 lines
6.4 KiB
Java
/*
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* Copyright (C) 2012-2018 Tobias Brunner
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* Copyright (C) 2012 Giuliano Grassi
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* Copyright (C) 2012 Ralf Sager
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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package org.strongswan.android.ui;
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import android.app.Dialog;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.os.Bundle;
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import android.text.format.Formatter;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.widget.Toast;
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import org.strongswan.android.R;
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import org.strongswan.android.data.VpnProfile;
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import org.strongswan.android.logic.TrustedCertificateManager;
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import org.strongswan.android.ui.VpnProfileListFragment.OnVpnProfileSelectedListener;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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import androidx.appcompat.app.ActionBar;
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import androidx.appcompat.app.AlertDialog;
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import androidx.appcompat.app.AppCompatActivity;
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import androidx.appcompat.app.AppCompatDialogFragment;
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import androidx.fragment.app.Fragment;
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import androidx.fragment.app.FragmentManager;
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import androidx.fragment.app.FragmentTransaction;
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public class MainActivity extends AppCompatActivity implements OnVpnProfileSelectedListener
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{
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public static final String CONTACT_EMAIL = "android@strongswan.org";
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public static final String EXTRA_CRL_LIST = "org.strongswan.android.CRL_LIST";
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/**
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* Use "bring your own device" (BYOD) features
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*/
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public static final boolean USE_BYOD = true;
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private static final String DIALOG_TAG = "Dialog";
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@Override
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public void onCreate(Bundle savedInstanceState)
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{
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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ActionBar bar = getSupportActionBar();
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bar.setDisplayShowHomeEnabled(true);
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bar.setDisplayShowTitleEnabled(false);
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bar.setIcon(R.drawable.ic_launcher);
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/* load CA certificates in a background task */
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new LoadCertificatesTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu)
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{
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getMenuInflater().inflate(R.menu.main, menu);
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return true;
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}
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@Override
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public boolean onPrepareOptionsMenu(Menu menu)
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{
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT)
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{
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menu.removeItem(R.id.menu_import_profile);
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}
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item)
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{
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switch (item.getItemId())
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{
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case R.id.menu_import_profile:
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Intent intent = new Intent(this, VpnProfileImportActivity.class);
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startActivity(intent);
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return true;
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case R.id.menu_manage_certs:
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Intent certIntent = new Intent(this, TrustedCertificatesActivity.class);
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startActivity(certIntent);
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return true;
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case R.id.menu_crl_cache:
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clearCRLs();
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return true;
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case R.id.menu_show_log:
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Intent logIntent = new Intent(this, LogActivity.class);
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startActivity(logIntent);
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return true;
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case R.id.menu_settings:
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Intent settingsIntent = new Intent(this, SettingsActivity.class);
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startActivity(settingsIntent);
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return true;
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default:
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return super.onOptionsItemSelected(item);
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}
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}
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@Override
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public void onVpnProfileSelected(VpnProfile profile)
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{
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Intent intent = new Intent(this, VpnProfileControlActivity.class);
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intent.setAction(VpnProfileControlActivity.START_PROFILE);
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intent.putExtra(VpnProfileControlActivity.EXTRA_VPN_PROFILE_ID, profile.getUUID().toString());
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startActivity(intent);
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}
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/**
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* Ask the user whether to clear the CRL cache.
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*/
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private void clearCRLs()
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{
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final String FILE_PREFIX = "crl-";
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ArrayList<String> list = new ArrayList<>();
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for (String file : fileList())
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{
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if (file.startsWith(FILE_PREFIX))
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{
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list.add(file);
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}
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}
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if (list.size() == 0)
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{
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Toast.makeText(this, R.string.clear_crl_cache_msg_none, Toast.LENGTH_SHORT).show();
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return;
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}
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removeFragmentByTag(DIALOG_TAG);
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Bundle args = new Bundle();
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args.putStringArrayList(EXTRA_CRL_LIST, list);
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CRLCacheDialog dialog = new CRLCacheDialog();
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dialog.setArguments(args);
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dialog.show(this.getSupportFragmentManager(), DIALOG_TAG);
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}
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/**
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* Class that loads the cached CA certificates.
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*/
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private class LoadCertificatesTask extends AsyncTask<Void, Void, TrustedCertificateManager>
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{
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@Override
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protected TrustedCertificateManager doInBackground(Void... params)
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{
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return TrustedCertificateManager.getInstance().load();
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}
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}
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/**
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* Dismiss dialog if shown
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*/
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public void removeFragmentByTag(String tag)
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{
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FragmentManager fm = getSupportFragmentManager();
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Fragment login = fm.findFragmentByTag(tag);
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if (login != null)
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{
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FragmentTransaction ft = fm.beginTransaction();
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ft.remove(login);
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ft.commit();
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}
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}
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/**
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* Confirmation dialog to clear CRL cache
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*/
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public static class CRLCacheDialog extends AppCompatDialogFragment
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{
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState)
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{
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final List<String> list = getArguments().getStringArrayList(EXTRA_CRL_LIST);
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String size;
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long s = 0;
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for (String file : list)
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{
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File crl = getActivity().getFileStreamPath(file);
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s += crl.length();
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}
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size = Formatter.formatFileSize(getActivity(), s);
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AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
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.setTitle(R.string.clear_crl_cache_title)
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.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener()
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{
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@Override
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public void onClick(DialogInterface dialog, int which)
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{
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dismiss();
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}
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})
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.setPositiveButton(R.string.clear, new DialogInterface.OnClickListener()
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{
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@Override
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public void onClick(DialogInterface dialog, int whichButton)
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{
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for (String file : list)
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{
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getActivity().deleteFile(file);
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}
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}
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});
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builder.setMessage(getActivity().getResources().getQuantityString(R.plurals.clear_crl_cache_msg, list.size(), list.size(), size));
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return builder.create();
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}
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}
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}
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