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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.vpndialogs;
import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
import android.content.Context;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.net.IConnectivityManager;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.text.Html;
import android.text.Html.ImageGetter;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.android.internal.app.AlertActivity;
import com.android.internal.net.VpnConfig;
public class ConfirmDialog extends AlertActivity
implements DialogInterface.OnClickListener, ImageGetter {
private static final String TAG = "VpnConfirm";
private String mPackage;
private IConnectivityManager mService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPackage = getCallingPackage();
mService = IConnectivityManager.Stub.asInterface(
ServiceManager.getService(Context.CONNECTIVITY_SERVICE));
if (prepareVpn()) {
setResult(RESULT_OK);
finish();
return;
}
if (UserManager.get(this).hasUserRestriction(UserManager.DISALLOW_CONFIG_VPN)) {
finish();
return;
}
final String alwaysOnVpnPackage = getAlwaysOnVpnPackage();
// Can't prepare new vpn app when another vpn is always-on
if (alwaysOnVpnPackage != null && !alwaysOnVpnPackage.equals(mPackage)) {
finish();
return;
}
View view = View.inflate(this, R.layout.confirm, null);
((TextView) view.findViewById(R.id.warning)).setText(
Html.fromHtml(getString(R.string.warning, getVpnLabel()),
this, null /* tagHandler */));
mAlertParams.mTitle = getText(R.string.prompt);
mAlertParams.mPositiveButtonText = getText(android.R.string.ok);
mAlertParams.mPositiveButtonListener = this;
mAlertParams.mNegativeButtonText = getText(android.R.string.cancel);
mAlertParams.mView = view;
setupAlert();
getWindow().setCloseOnTouchOutside(false);
getWindow().addPrivateFlags(PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
Button button = mAlert.getButton(DialogInterface.BUTTON_POSITIVE);
button.setFilterTouchesWhenObscured(true);
}
private String getAlwaysOnVpnPackage() {
try {
return mService.getAlwaysOnVpnPackage(UserHandle.myUserId());
} catch (RemoteException e) {
Log.e(TAG, "fail to call getAlwaysOnVpnPackage", e);
// Fallback to null to show the dialog
return null;
}
}
private boolean prepareVpn() {
try {
return mService.prepareVpn(mPackage, null, UserHandle.myUserId());
} catch (RemoteException e) {
throw new IllegalStateException(e);
}
}
private CharSequence getVpnLabel() {
try {
return VpnConfig.getVpnLabel(this, mPackage);
} catch (PackageManager.NameNotFoundException e) {
throw new IllegalStateException(e);
}
}
@Override
public Drawable getDrawable(String source) {
// Should only reach this when fetching the VPN icon for the warning string.
Drawable icon = getDrawable(R.drawable.ic_vpn_dialog);
icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
return icon;
}
@Override
public void onBackPressed() {
}
@Override
public void onClick(DialogInterface dialog, int which) {
try {
if (mService.prepareVpn(null, mPackage, UserHandle.myUserId())) {
// Authorize this app to initiate VPN connections in the future without user
// intervention.
mService.setVpnPackageAuthorization(mPackage, UserHandle.myUserId(), true);
setResult(RESULT_OK);
}
} catch (Exception e) {
Log.e(TAG, "onClick", e);
}
}
}
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