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 static android.content.Intent.EXTRA_USER;
20 
21 import android.accounts.AccountManager;
22 import android.accounts.AccountManagerCallback;
23 import android.accounts.AccountManagerFuture;
24 import android.accounts.AuthenticatorException;
25 import android.accounts.OperationCanceledException;
26 import android.app.Activity;
27 import android.app.PendingIntent;
28 import android.content.ComponentName;
29 import android.content.Context;
30 import android.content.Intent;
31 import android.os.Bundle;
32 import android.os.UserHandle;
33 import android.os.UserManager;
34 import android.util.Log;
35 import android.widget.Toast;
36 
37 import com.android.settings.R;
38 import com.android.settings.Settings;
39 import com.android.settings.Utils;
40 import com.android.settings.password.ChooseLockSettingsHelper;
41 
42 import java.io.IOException;
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 = "AddAccountSettings";
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                             .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
105                             .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
106                     startActivityForResultAsUser(
107                             new Intent(intent), ADD_ACCOUNT_REQUEST, mUserHandle);
108                 } else {
109                     setResult(RESULT_OK);
110                     if (mPendingIntent != null) {
111                         mPendingIntent.cancel();
112                         mPendingIntent = null;
113                     }
114                 }
115 
116                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "account added: " + bundle);
117             } catch (OperationCanceledException e) {
118                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount was canceled");
119             } catch (IOException e) {
120                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
121             } catch (AuthenticatorException e) {
122                 if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
123             } finally {
124                 if (done) {
125                     finish();
126                 }
127             }
128         }
129     };
130 
131     private boolean mAddAccountCalled = false;
132     private UserHandle mUserHandle;
133 
134     @Override
onCreate(Bundle savedInstanceState)135     public void onCreate(Bundle savedInstanceState) {
136         super.onCreate(savedInstanceState);
137 
138         if (savedInstanceState != null) {
139             mAddAccountCalled = savedInstanceState.getBoolean(KEY_ADD_CALLED);
140             if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "restored");
141         }
142 
143         final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
144         mUserHandle = Utils.getSecureTargetUser(getActivityToken(), um, null /* arguments */,
145                 getIntent().getExtras());
146         if (um.hasUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, mUserHandle)) {
147             // We aren't allowed to add an account.
148             Toast.makeText(this, R.string.user_cannot_add_accounts_message, Toast.LENGTH_LONG)
149                     .show();
150             finish();
151             return;
152         }
153         if (mAddAccountCalled) {
154             // We already called add account - maybe the callback was lost.
155             finish();
156             return;
157         }
158         if (Utils.startQuietModeDialogIfNecessary(this, um, mUserHandle.getIdentifier())) {
159             finish();
160             return;
161         }
162         if (um.isUserUnlocked(mUserHandle)) {
163             requestChooseAccount();
164         } else {
165             // If the user is locked by fbe: we couldn't start the authenticator. So we must ask the
166             // user to unlock it first.
167             final ChooseLockSettingsHelper.Builder builder =
168                     new ChooseLockSettingsHelper.Builder(this);
169             final boolean launched = builder.setRequestCode(UNLOCK_WORK_PROFILE_REQUEST)
170                     .setTitle(getString(R.string.unlock_set_unlock_launch_picker_title))
171                     .setUserId(mUserHandle.getIdentifier())
172                     .show();
173             if (!launched) {
174                 requestChooseAccount();
175             }
176         }
177     }
178 
179     @Override
onActivityResult(int requestCode, int resultCode, Intent data)180     public void onActivityResult(int requestCode, int resultCode, Intent data) {
181         switch (requestCode) {
182         case UNLOCK_WORK_PROFILE_REQUEST:
183             if (resultCode == Activity.RESULT_OK) {
184                 requestChooseAccount();
185             } else {
186                 finish();
187             }
188             break;
189         case CHOOSE_ACCOUNT_REQUEST:
190             if (resultCode == RESULT_CANCELED) {
191                 if (data != null) {
192                     startActivityAsUser(data, mUserHandle);
193                 }
194                 setResult(resultCode);
195                 finish();
196                 return;
197             }
198             // Go to account setup screen. finish() is called inside mCallback.
199             addAccount(data.getStringExtra(EXTRA_SELECTED_ACCOUNT));
200             break;
201         case ADD_ACCOUNT_REQUEST:
202             setResult(resultCode);
203             if (mPendingIntent != null) {
204                 mPendingIntent.cancel();
205                 mPendingIntent = null;
206             }
207             finish();
208             break;
209         }
210     }
211 
212     @Override
onSaveInstanceState(Bundle outState)213     protected void onSaveInstanceState(Bundle outState) {
214         super.onSaveInstanceState(outState);
215         outState.putBoolean(KEY_ADD_CALLED, mAddAccountCalled);
216         if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "saved");
217     }
218 
requestChooseAccount()219     private void requestChooseAccount() {
220         final String[] authorities =
221                 getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
222         final String[] accountTypes =
223                 getIntent().getStringArrayExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY);
224         final Intent intent = new Intent(this, Settings.ChooseAccountActivity.class);
225         if (authorities != null) {
226             intent.putExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY, authorities);
227         }
228         if (accountTypes != null) {
229             intent.putExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY, accountTypes);
230         }
231         intent.putExtra(EXTRA_USER, mUserHandle);
232         startActivityForResult(intent, CHOOSE_ACCOUNT_REQUEST);
233     }
234 
addAccount(String accountType)235     private void addAccount(String accountType) {
236         Bundle addAccountOptions = new Bundle();
237         /*
238          * The identityIntent is for the purposes of establishing the identity
239          * of the caller and isn't intended for launching activities, services
240          * or broadcasts.
241          *
242          * Unfortunately for legacy reasons we still need to support this. But
243          * we can disable the intent so that 3rd party authenticators can't
244          * fill in addressing information and launch arbitrary actions.
245          */
246         Intent identityIntent = new Intent();
247         identityIntent.setComponent(new ComponentName(SHOULD_NOT_RESOLVE, SHOULD_NOT_RESOLVE));
248         identityIntent.setAction(SHOULD_NOT_RESOLVE);
249         identityIntent.addCategory(SHOULD_NOT_RESOLVE);
250 
251         mPendingIntent = PendingIntent.getBroadcast(this, 0, identityIntent,
252                 PendingIntent.FLAG_IMMUTABLE);
253         addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
254         addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS, Utils.hasMultipleUsers(this));
255         AccountManager.get(this).addAccountAsUser(
256                 accountType,
257                 null, /* authTokenType */
258                 null, /* requiredFeatures */
259                 addAccountOptions,
260                 null,
261                 mCallback,
262                 null /* handler */,
263                 mUserHandle);
264         mAddAccountCalled  = true;
265     }
266 }
267