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1 /*
2  * Copyright (C) 2015 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.traceur;
18 
19 import android.accounts.Account;
20 import android.accounts.AccountManager;
21 import android.app.Notification;
22 import android.app.NotificationManager;
23 import android.app.PendingIntent;
24 import android.content.ClipData;
25 import android.content.Context;
26 import androidx.core.content.FileProvider;
27 import android.content.Intent;
28 import android.content.pm.PackageManager;
29 import android.net.Uri;
30 import android.os.SystemProperties;
31 import android.util.Patterns;
32 
33 import java.io.File;
34 
35 /**
36  * Sends bugreport-y files, adapted from fw/base/packages/Shell's BugreportReceiver.
37  */
38 public class FileSender {
39 
40     private static final String AUTHORITY = "com.android.traceur.files";
41     private static final String MIME_TYPE = "application/vnd.android.systrace";
42 
postNotification(Context context, File file)43     public static void postNotification(Context context, File file) {
44         // Files are kept on private storage, so turn into Uris that we can
45         // grant temporary permissions for.
46         final Uri traceUri = getUriForFile(context, file);
47 
48         // Intent to send the file
49         Intent sendIntent = buildSendIntent(context, traceUri);
50         sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
51 
52         // This dialog will show to warn the user about sharing traces, then will execute
53         // the above file-sharing intent.
54         final Intent intent = new Intent(context, UserConsentActivityDialog.class);
55         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_RECEIVER_FOREGROUND);
56         intent.putExtra(Intent.EXTRA_INTENT, sendIntent);
57 
58         final Notification.Builder builder =
59             new Notification.Builder(context, Receiver.NOTIFICATION_CHANNEL_OTHER)
60                 .setSmallIcon(R.drawable.stat_sys_adb)
61                 .setContentTitle(context.getString(R.string.trace_saved))
62                 .setTicker(context.getString(R.string.trace_saved))
63                 .setContentText(context.getString(R.string.tap_to_share))
64                 .setContentIntent(PendingIntent.getActivity(
65                         context, traceUri.hashCode(), intent, PendingIntent.FLAG_ONE_SHOT
66                                 | PendingIntent.FLAG_CANCEL_CURRENT))
67                 .setAutoCancel(true)
68                 .setLocalOnly(true)
69                 .setColor(context.getColor(
70                         com.android.internal.R.color.system_notification_accent_color));
71 
72         if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
73             builder.extend(new Notification.TvExtender());
74         }
75 
76         NotificationManager.from(context).notify(file.getName(), 0, builder.build());
77     }
78 
send(Context context, File file)79     public static void send(Context context, File file) {
80         // Files are kept on private storage, so turn into Uris that we can
81         // grant temporary permissions for.
82         final Uri traceUri = getUriForFile(context, file);
83 
84         Intent sendIntent = buildSendIntent(context, traceUri);
85         sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
86 
87         context.startActivity(sendIntent);
88     }
89 
getUriForFile(Context context, File file)90     private static Uri getUriForFile(Context context, File file) {
91         return FileProvider.getUriForFile(context, AUTHORITY, file);
92     }
93 
94     /**
95      * Build {@link Intent} that can be used to share the given bugreport.
96      */
buildSendIntent(Context context, Uri traceUri)97     private static Intent buildSendIntent(Context context, Uri traceUri) {
98         final CharSequence description = SystemProperties.get("ro.build.description");
99 
100         final Intent intent = new Intent(Intent.ACTION_SEND);
101         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
102         intent.addCategory(Intent.CATEGORY_DEFAULT);
103         intent.setType(MIME_TYPE);
104 
105         intent.putExtra(Intent.EXTRA_SUBJECT, traceUri.getLastPathSegment());
106         intent.putExtra(Intent.EXTRA_TEXT, description);
107         intent.putExtra(Intent.EXTRA_STREAM, traceUri);
108 
109         // Explicitly set the clip data; see b/119399115
110         intent.setClipData(new ClipData(null, new String[] { MIME_TYPE },
111             new ClipData.Item(description, null, traceUri)));
112 
113         final Account sendToAccount = findSendToAccount(context);
114         if (sendToAccount != null) {
115             intent.putExtra(Intent.EXTRA_EMAIL, new String[] { sendToAccount.name });
116         }
117 
118         return intent;
119     }
120 
121     /**
122      * Find the best matching {@link Account} based on build properties.
123      */
findSendToAccount(Context context)124     private static Account findSendToAccount(Context context) {
125         final AccountManager am = (AccountManager) context.getSystemService(
126                 Context.ACCOUNT_SERVICE);
127 
128         String preferredDomain = SystemProperties.get("sendbug.preferred.domain");
129         if (!preferredDomain.startsWith("@")) {
130             preferredDomain = "@" + preferredDomain;
131         }
132 
133         final Account[] accounts = am.getAccounts();
134         Account foundAccount = null;
135         for (Account account : accounts) {
136             if (Patterns.EMAIL_ADDRESS.matcher(account.name).matches()) {
137                 if (!preferredDomain.isEmpty()) {
138                     // if we have a preferred domain and it matches, return; otherwise keep
139                     // looking
140                     if (account.name.endsWith(preferredDomain)) {
141                         return account;
142                     } else {
143                         foundAccount = account;
144                     }
145                     // if we don't have a preferred domain, just return since it looks like
146                     // an email address
147                 } else {
148                     return account;
149                 }
150             }
151         }
152         return foundAccount;
153     }
154 }
155