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 */
16package android.accounts;
17
18import android.app.Activity;
19import android.content.res.Resources;
20import android.os.Bundle;
21import android.widget.TextView;
22import android.widget.LinearLayout;
23import android.view.View;
24import android.view.LayoutInflater;
25import android.content.Context;
26import android.content.Intent;
27import android.content.pm.PackageManager;
28import android.text.TextUtils;
29import com.android.internal.R;
30
31import java.io.IOException;
32
33/**
34 * @hide
35 */
36public 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