ConfirmDialog.java revision ca8594a3411f7aeaf5cd22e7e95a5b19f490ae6c 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.vpndialogs;
18
19import android.content.Context;
20import android.content.DialogInterface;
21import android.content.pm.PackageManager;
22import android.graphics.drawable.Drawable;
23import android.net.IConnectivityManager;
24import android.os.Bundle;
25import android.os.RemoteException;
26import android.os.ServiceManager;
27import android.os.UserHandle;
28import android.text.Html;
29import android.text.Html.ImageGetter;
30import android.util.Log;
31import android.view.View;
32import android.widget.Button;
33import android.widget.TextView;
34
35import com.android.internal.app.AlertActivity;
36import com.android.internal.net.VpnConfig;
37
38public class ConfirmDialog extends AlertActivity
39        implements DialogInterface.OnClickListener, ImageGetter {
40    private static final String TAG = "VpnConfirm";
41
42    private String mPackage;
43
44    private IConnectivityManager mService;
45
46    @Override
47    protected void onCreate(Bundle savedInstanceState) {
48        super.onCreate(savedInstanceState);
49        mPackage = getCallingPackage();
50        mService = IConnectivityManager.Stub.asInterface(
51                ServiceManager.getService(Context.CONNECTIVITY_SERVICE));
52
53        if (prepareVpn()) {
54            setResult(RESULT_OK);
55            finish();
56            return;
57        }
58        View view = View.inflate(this, R.layout.confirm, null);
59        ((TextView) view.findViewById(R.id.warning)).setText(
60                Html.fromHtml(getString(R.string.warning, getVpnLabel()),
61                        this, null /* tagHandler */));
62        mAlertParams.mTitle = getText(R.string.prompt);
63        mAlertParams.mPositiveButtonText = getText(android.R.string.ok);
64        mAlertParams.mPositiveButtonListener = this;
65        mAlertParams.mNegativeButtonText = getText(android.R.string.cancel);
66        mAlertParams.mView = view;
67        setupAlert();
68
69        getWindow().setCloseOnTouchOutside(false);
70        Button button = mAlert.getButton(DialogInterface.BUTTON_POSITIVE);
71        button.setFilterTouchesWhenObscured(true);
72    }
73
74    private boolean prepareVpn() {
75        try {
76            return mService.prepareVpn(mPackage, null, UserHandle.myUserId());
77        } catch (RemoteException e) {
78            throw new IllegalStateException(e);
79        }
80    }
81
82    private CharSequence getVpnLabel() {
83        try {
84            return VpnConfig.getVpnLabel(this, mPackage);
85        } catch (PackageManager.NameNotFoundException e) {
86            throw new IllegalStateException(e);
87        }
88    }
89
90    @Override
91    public Drawable getDrawable(String source) {
92        // Should only reach this when fetching the VPN icon for the warning string.
93        Drawable icon = getDrawable(R.drawable.ic_vpn_dialog);
94        icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
95        return icon;
96    }
97
98    @Override
99    public void onBackPressed() {
100    }
101
102    @Override
103    public void onClick(DialogInterface dialog, int which) {
104        try {
105            if (mService.prepareVpn(null, mPackage, UserHandle.myUserId())) {
106                // Authorize this app to initiate VPN connections in the future without user
107                // intervention.
108                mService.setVpnPackageAuthorization(mPackage, UserHandle.myUserId(), true);
109                setResult(RESULT_OK);
110            }
111        } catch (Exception e) {
112            Log.e(TAG, "onClick", e);
113        }
114    }
115}
116