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      1 /*
      2  * Copyright (C) 2009 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 package android.accounts;
     17 
     18 import android.app.Activity;
     19 import android.content.res.Resources;
     20 import android.os.Bundle;
     21 import android.widget.TextView;
     22 import android.widget.LinearLayout;
     23 import android.view.View;
     24 import android.view.LayoutInflater;
     25 import android.content.Context;
     26 import android.content.Intent;
     27 import android.content.pm.PackageManager;
     28 import android.text.TextUtils;
     29 import com.android.internal.R;
     30 
     31 import java.io.IOException;
     32 
     33 /**
     34  * @hide
     35  */
     36 public class GrantCredentialsPermissionActivity extends Activity implements View.OnClickListener {
     37     public static final String EXTRAS_ACCOUNT = "account";
     38     public static final String EXTRAS_AUTH_TOKEN_LABEL = "authTokenLabel";
     39     public static final String EXTRAS_AUTH_TOKEN_TYPE = "authTokenType";
     40     public static final String EXTRAS_RESPONSE = "response";
     41     public static final String EXTRAS_ACCOUNT_TYPE_LABEL = "accountTypeLabel";
     42     public static final String EXTRAS_PACKAGES = "application";
     43     public static final String EXTRAS_REQUESTING_UID = "uid";
     44     private Account mAccount;
     45     private String mAuthTokenType;
     46     private int mUid;
     47     private Bundle mResultBundle = null;
     48     protected LayoutInflater mInflater;
     49 
     50     protected void onCreate(Bundle savedInstanceState) {
     51         super.onCreate(savedInstanceState);
     52         setContentView(R.layout.grant_credentials_permission);
     53         setTitle(R.string.grant_permissions_header_text);
     54 
     55         mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     56 
     57         final Bundle extras = getIntent().getExtras();
     58         if (extras == null) {
     59             // we were somehow started with bad parameters. abort the activity.
     60             setResult(Activity.RESULT_CANCELED);
     61             finish();
     62             return;
     63         }
     64 
     65         // Grant 'account'/'type' to mUID
     66         mAccount = extras.getParcelable(EXTRAS_ACCOUNT);
     67         mAuthTokenType = extras.getString(EXTRAS_AUTH_TOKEN_TYPE);
     68         mUid = extras.getInt(EXTRAS_REQUESTING_UID);
     69         final PackageManager pm = getPackageManager();
     70         final String[] packages = pm.getPackagesForUid(mUid);
     71 
     72         if (mAccount == null || mAuthTokenType == null || packages == null) {
     73             // we were somehow started with bad parameters. abort the activity.
     74             setResult(Activity.RESULT_CANCELED);
     75             finish();
     76             return;
     77         }
     78 
     79         String accountTypeLabel;
     80         try {
     81             accountTypeLabel = getAccountLabel(mAccount);
     82         } catch (IllegalArgumentException e) {
     83             // label or resource was missing. abort the activity.
     84             setResult(Activity.RESULT_CANCELED);
     85             finish();
     86             return;
     87         }
     88 
     89         final TextView authTokenTypeView = (TextView) findViewById(R.id.authtoken_type);
     90         authTokenTypeView.setVisibility(View.GONE);
     91 
     92         final AccountManagerCallback<String> callback = new AccountManagerCallback<String>() {
     93             public void run(AccountManagerFuture<String> future) {
     94                 try {
     95                     final String authTokenLabel = future.getResult();
     96                     if (!TextUtils.isEmpty(authTokenLabel)) {
     97                         runOnUiThread(new Runnable() {
     98                             public void run() {
     99                                 if (!isFinishing()) {
    100                                     authTokenTypeView.setText(authTokenLabel);
    101                                     authTokenTypeView.setVisibility(View.VISIBLE);
    102                                 }
    103                             }
    104                         });
    105                     }
    106                 } catch (OperationCanceledException e) {
    107                 } catch (IOException e) {
    108                 } catch (AuthenticatorException e) {
    109                 }
    110             }
    111         };
    112         AccountManager.get(this).getAuthTokenLabel(mAccount.type, mAuthTokenType, callback, null);
    113 
    114         findViewById(R.id.allow_button).setOnClickListener(this);
    115         findViewById(R.id.deny_button).setOnClickListener(this);
    116 
    117         LinearLayout packagesListView = (LinearLayout) findViewById(R.id.packages_list);
    118 
    119         for (String pkg : packages) {
    120             String packageLabel;
    121             try {
    122                 packageLabel = pm.getApplicationLabel(pm.getApplicationInfo(pkg, 0)).toString();
    123             } catch (PackageManager.NameNotFoundException e) {
    124                 packageLabel = pkg;
    125             }
    126             packagesListView.addView(newPackageView(packageLabel));
    127         }
    128 
    129         ((TextView) findViewById(R.id.account_name)).setText(mAccount.name);
    130         ((TextView) findViewById(R.id.account_type)).setText(accountTypeLabel);
    131     }
    132 
    133     private String getAccountLabel(Account account) {
    134         final AuthenticatorDescription[] authenticatorTypes =
    135                 AccountManager.get(this).getAuthenticatorTypes();
    136         for (int i = 0, N = authenticatorTypes.length; i < N; i++) {
    137             final AuthenticatorDescription desc = authenticatorTypes[i];
    138             if (desc.type.equals(account.type)) {
    139                 try {
    140                     return createPackageContext(desc.packageName, 0).getString(desc.labelId);
    141                 } catch (PackageManager.NameNotFoundException e) {
    142                     return account.type;
    143                 } catch (Resources.NotFoundException e) {
    144                     return account.type;
    145                 }
    146             }
    147         }
    148         return account.type;
    149     }
    150 
    151     private View newPackageView(String packageLabel) {
    152         View view = mInflater.inflate(R.layout.permissions_package_list_item, null);
    153         ((TextView) view.findViewById(R.id.package_label)).setText(packageLabel);
    154         return view;
    155     }
    156 
    157     public void onClick(View v) {
    158         switch (v.getId()) {
    159             case R.id.allow_button:
    160                 AccountManager.get(this).updateAppPermission(mAccount, mAuthTokenType, mUid, true);
    161                 Intent result = new Intent();
    162                 result.putExtra("retry", true);
    163                 setResult(RESULT_OK, result);
    164                 setAccountAuthenticatorResult(result.getExtras());
    165                 break;
    166 
    167             case R.id.deny_button:
    168                 AccountManager.get(this).updateAppPermission(mAccount, mAuthTokenType, mUid, false);
    169                 setResult(RESULT_CANCELED);
    170                 break;
    171         }
    172         finish();
    173     }
    174 
    175     public final void setAccountAuthenticatorResult(Bundle result) {
    176         mResultBundle = result;
    177     }
    178 
    179     /**
    180      * Sends the result or a {@link AccountManager#ERROR_CODE_CANCELED} error if a
    181      * result isn't present.
    182      */
    183     public void finish() {
    184         Intent intent = getIntent();
    185         AccountAuthenticatorResponse response = intent.getParcelableExtra(EXTRAS_RESPONSE);
    186         if (response != null) {
    187             // send the result bundle back if set, otherwise send an error.
    188             if (mResultBundle != null) {
    189                 response.onResult(mResultBundle);
    190             } else {
    191                 response.onError(AccountManager.ERROR_CODE_CANCELED, "canceled");
    192             }
    193         }
    194         super.finish();
    195     }
    196 }
    197