1 /*
2  * Copyright (C) 2008 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 
17 package com.android.settings.accounts;
18 
19 import android.accounts.AccountManager;
20 import android.accounts.AccountManagerCallback;
21 import android.accounts.AccountManagerFuture;
22 import android.accounts.AuthenticatorException;
23 import android.accounts.OperationCanceledException;
24 import android.app.Activity;
25 import android.app.PendingIntent;
26 import android.content.ComponentName;
27 import android.content.Context;
28 import android.content.Intent;
29 import android.os.Bundle;
30 import android.os.UserHandle;
31 import android.os.UserManager;
32 import android.util.Log;
33 import android.widget.Toast;
34 
35 import com.android.settings.ChooseLockSettingsHelper;
36 import com.android.settings.R;
37 import com.android.settings.Settings;
38 import com.android.settings.Utils;
39 
40 import java.io.IOException;
41 
42 import static android.content.Intent.EXTRA_USER;
43 /**
44  * Entry point Activity for account setup. Works as follows
45  *
46  * 1) When the other Activities launch this Activity, it launches {@link ChooseAccountActivity}
47  *    without showing anything.
48  * 2) After receiving an account type from ChooseAccountActivity, this Activity launches the
49  *    account setup specified by AccountManager.
50  * 3) After the account setup, this Activity finishes without showing anything.
51  *
52  * Note:
53  * Previously this Activity did what {@link ChooseAccountActivity} does right now, but we
54  * currently delegate the work to the other Activity. When we let this Activity do that work, users
55  * would see the list of account types when leaving this Activity, since the UI is already ready
56  * when returning from each account setup, which doesn't look good.
57  *
58  * An extra {@link UserHandle} can be specified in the intent as {@link EXTRA_USER}, if the user for
59  * which the action needs to be performed is different to the one the Settings App will run in.
60  */
61 public class AddAccountSettings extends Activity {
62     /**
63      *
64      */
65     private static final String KEY_ADD_CALLED = "AddAccountCalled";
66 
67     /**
68      * Extra parameter to identify the caller. Applications may display a
69      * different UI if the calls is made from Settings or from a specific
70      * application.
71      */
72     private static final String KEY_CALLER_IDENTITY = "pendingIntent";
73     private static final String SHOULD_NOT_RESOLVE = "SHOULDN'T RESOLVE!";
74 
75     private static final String TAG = "AccountSettings";
76 
77     /* package */ static final String EXTRA_SELECTED_ACCOUNT = "selected_account";
78 
79     // show additional info regarding the use of a device with multiple users
80     static final String EXTRA_HAS_MULTIPLE_USERS = "hasMultipleUsers";
81 
82     private static final int CHOOSE_ACCOUNT_REQUEST = 1;
83     private static final int ADD_ACCOUNT_REQUEST = 2;
84     private static final int UNLOCK_WORK_PROFILE_REQUEST = 3;
85 
86     private PendingIntent mPendingIntent;
87 
88     private final AccountManagerCallback<Bundle> mCallback = new AccountManagerCallback<Bundle>() {
89         @Override
90         public void run(AccountManagerFuture<Bundle> future) {
91             boolean done = true;
92             try {
93                 Bundle bundle = future.getResult();
94                 //bundle.keySet();
95                 Intent intent = (Intent) bundle.get(AccountManager.KEY_INTENT);
96                 if (intent != null) {
97                     done = false;
98                     Bundle addAccountOptions = new Bundle();
99                     addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
100                     addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS,
101                             Utils.hasMultipleUsers(AddAccountSettings.this));
102                     addAccountOptions.putParcelable(EXTRA_USER, mUserHandle);
103                     intent.putExtras(addAccountOptions);
104                     intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
105                     startActivityForResultAsUser(intent, ADD_ACCOUNT_REQUEST, mUserHandle);
106                 } else {
107                     setResult(RESULT_OK);
108                     if (mPendingIntent != null) {
109                         mPendingIntent.cancel();
110                         mPendingIntent = null;
111                     }
112                 }
113 
114                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "account added: " + bundle);
115             } catch (OperationCanceledException e) {
116                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount was canceled");
117             } catch (IOException e) {
118                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
119             } catch (AuthenticatorException e) {
120                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
121             } finally {
122                 if (done) {
123                     finish();
124                 }
125             }
126         }
127     };
128 
129     private boolean mAddAccountCalled = false;
130     private UserHandle mUserHandle;
131 
132     @Override
onCreate(Bundle savedInstanceState)133     public void onCreate(Bundle savedInstanceState) {
134         super.onCreate(savedInstanceState);
135 
136         if (savedInstanceState != null) {
137             mAddAccountCalled = savedInstanceState.getBoolean(KEY_ADD_CALLED);
138             if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "restored");
139         }
140 
141         final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
142         mUserHandle = Utils.getSecureTargetUser(getActivityToken(), um, null /* arguments */,
143                 getIntent().getExtras());
144         if (um.hasUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, mUserHandle)) {
145             // We aren't allowed to add an account.
146             Toast.makeText(this, R.string.user_cannot_add_accounts_message, Toast.LENGTH_LONG)
147                     .show();
148             finish();
149             return;
150         }
151         if (mAddAccountCalled) {
152             // We already called add account - maybe the callback was lost.
153             finish();
154             return;
155         }
156         if (Utils.startQuietModeDialogIfNecessary(this, um, mUserHandle.getIdentifier())) {
157             finish();
158             return;
159         }
160         if (um.isUserUnlocked(mUserHandle)) {
161             requestChooseAccount();
162         } else {
163             // If the user is locked by fbe: we couldn't start the authenticator. So we must ask the
164             // user to unlock it first.
165             ChooseLockSettingsHelper helper = new ChooseLockSettingsHelper(this);
166             if (!helper.launchConfirmationActivity(UNLOCK_WORK_PROFILE_REQUEST,
167                     getString(R.string.unlock_set_unlock_launch_picker_title),
168                     false,
169                     mUserHandle.getIdentifier())) {
170                 requestChooseAccount();
171             }
172         }
173     }
174 
175     @Override
onActivityResult(int requestCode, int resultCode, Intent data)176     public void onActivityResult(int requestCode, int resultCode, Intent data) {
177         switch (requestCode) {
178         case UNLOCK_WORK_PROFILE_REQUEST:
179             if (resultCode == Activity.RESULT_OK) {
180                 requestChooseAccount();
181             } else {
182                 finish();
183             }
184             break;
185         case CHOOSE_ACCOUNT_REQUEST:
186             if (resultCode == RESULT_CANCELED) {
187                 if (data != null) {
188                     startActivityAsUser(data, mUserHandle);
189                 }
190                 setResult(resultCode);
191                 finish();
192                 return;
193             }
194             // Go to account setup screen. finish() is called inside mCallback.
195             addAccount(data.getStringExtra(EXTRA_SELECTED_ACCOUNT));
196             break;
197         case ADD_ACCOUNT_REQUEST:
198             setResult(resultCode);
199             if (mPendingIntent != null) {
200                 mPendingIntent.cancel();
201                 mPendingIntent = null;
202             }
203             finish();
204             break;
205         }
206     }
207 
208     @Override
onSaveInstanceState(Bundle outState)209     protected void onSaveInstanceState(Bundle outState) {
210         super.onSaveInstanceState(outState);
211         outState.putBoolean(KEY_ADD_CALLED, mAddAccountCalled);
212         if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "saved");
213     }
214 
requestChooseAccount()215     private void requestChooseAccount() {
216         final String[] authorities =
217                 getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
218         final String[] accountTypes =
219                 getIntent().getStringArrayExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY);
220         final Intent intent = new Intent(this, Settings.ChooseAccountActivity.class);
221         if (authorities != null) {
222             intent.putExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY, authorities);
223         }
224         if (accountTypes != null) {
225             intent.putExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY, accountTypes);
226         }
227         intent.putExtra(EXTRA_USER, mUserHandle);
228         startActivityForResult(intent, CHOOSE_ACCOUNT_REQUEST);
229     }
230 
addAccount(String accountType)231     private void addAccount(String accountType) {
232         Bundle addAccountOptions = new Bundle();
233         /*
234          * The identityIntent is for the purposes of establishing the identity
235          * of the caller and isn't intended for launching activities, services
236          * or broadcasts.
237          *
238          * Unfortunately for legacy reasons we still need to support this. But
239          * we can cripple the intent so that 3rd party authenticators can't
240          * fill in addressing information and launch arbitrary actions.
241          */
242         Intent identityIntent = new Intent();
243         identityIntent.setComponent(new ComponentName(SHOULD_NOT_RESOLVE, SHOULD_NOT_RESOLVE));
244         identityIntent.setAction(SHOULD_NOT_RESOLVE);
245         identityIntent.addCategory(SHOULD_NOT_RESOLVE);
246 
247         mPendingIntent = PendingIntent.getBroadcast(this, 0, identityIntent, 0);
248         addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
249         addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS, Utils.hasMultipleUsers(this));
250         AccountManager.get(this).addAccountAsUser(
251                 accountType,
252                 null, /* authTokenType */
253                 null, /* requiredFeatures */
254                 addAccountOptions,
255                 null,
256                 mCallback,
257                 null /* handler */,
258                 mUserHandle);
259         mAddAccountCalled  = true;
260     }
261 }
262