1/*
2 * Copyright (C) 2013 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
17package com.android.shell;
18
19import static com.android.shell.BugreportProgressService.EXTRA_BUGREPORT;
20import static com.android.shell.BugreportProgressService.EXTRA_ORIGINAL_INTENT;
21import static com.android.shell.BugreportProgressService.INTENT_BUGREPORT_FINISHED;
22import static com.android.shell.BugreportProgressService.getFileExtra;
23import static com.android.shell.BugreportProgressService.dumpIntent;
24
25import java.io.File;
26
27import android.content.BroadcastReceiver;
28import android.content.Context;
29import android.content.Intent;
30import android.os.AsyncTask;
31import android.os.FileUtils;
32import android.text.format.DateUtils;
33import android.util.Log;
34
35/**
36 * Receiver that handles finished bugreports, usually by attaching them to an
37 * {@link Intent#ACTION_SEND_MULTIPLE}.
38 */
39public class BugreportReceiver extends BroadcastReceiver {
40    private static final String TAG = "BugreportReceiver";
41
42    /**
43     * Always keep the newest 8 bugreport files; 4 reports and 4 screenshots are
44     * roughly 17MB of disk space.
45     */
46    private static final int MIN_KEEP_COUNT = 8;
47
48    /**
49     * Always keep bugreports taken in the last week.
50     */
51    private static final long MIN_KEEP_AGE = DateUtils.WEEK_IN_MILLIS;
52
53    @Override
54    public void onReceive(Context context, Intent intent) {
55        Log.d(TAG, "onReceive(): " + dumpIntent(intent));
56        // Clean up older bugreports in background
57        cleanupOldFiles(this, intent, INTENT_BUGREPORT_FINISHED, MIN_KEEP_COUNT, MIN_KEEP_AGE);
58
59        // Delegate intent handling to service.
60        Intent serviceIntent = new Intent(context, BugreportProgressService.class);
61        serviceIntent.putExtra(EXTRA_ORIGINAL_INTENT, intent);
62        context.startService(serviceIntent);
63    }
64
65    static void cleanupOldFiles(BroadcastReceiver br, Intent intent, String expectedAction,
66            final int minCount, final long minAge) {
67        if (!expectedAction.equals(intent.getAction())) {
68            return;
69        }
70        final File bugreportFile = getFileExtra(intent, EXTRA_BUGREPORT);
71        if (bugreportFile == null || !bugreportFile.exists()) {
72            Log.e(TAG, "Not deleting old files because file " + bugreportFile + " doesn't exist");
73            return;
74        }
75        final PendingResult result = br.goAsync();
76        new AsyncTask<Void, Void, Void>() {
77            @Override
78            protected Void doInBackground(Void... params) {
79                try {
80                    FileUtils.deleteOlderFiles(bugreportFile.getParentFile(), minCount, minAge);
81                } catch (RuntimeException e) {
82                    Log.e(TAG, "RuntimeException deleting old files", e);
83                }
84                result.finish();
85                return null;
86            }
87        }.execute();
88    }
89}
90