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