Tony Mantler | 65eb4ad | 2015-11-04 15:52:25 -0800 | [diff] [blame] | 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.settingslib.location; |
| 18 | |
| 19 | import android.app.AppGlobals; |
| 20 | import android.app.AppOpsManager; |
| 21 | import android.content.Context; |
| 22 | import android.content.pm.ApplicationInfo; |
| 23 | import android.content.pm.IPackageManager; |
| 24 | import android.content.pm.PackageManager; |
| 25 | import android.graphics.drawable.Drawable; |
| 26 | import android.os.Process; |
| 27 | import android.os.RemoteException; |
| 28 | import android.os.UserHandle; |
| 29 | import android.os.UserManager; |
| 30 | import android.util.Log; |
| 31 | |
| 32 | import java.util.ArrayList; |
| 33 | import java.util.List; |
| 34 | |
| 35 | /** |
| 36 | * Retrieves the information of applications which accessed location recently. |
| 37 | */ |
| 38 | public class RecentLocationApps { |
| 39 | private static final String TAG = RecentLocationApps.class.getSimpleName(); |
| 40 | private static final String ANDROID_SYSTEM_PACKAGE_NAME = "android"; |
| 41 | |
| 42 | private static final int RECENT_TIME_INTERVAL_MILLIS = 15 * 60 * 1000; |
| 43 | |
| 44 | private static final int[] LOCATION_OPS = new int[] { |
| 45 | AppOpsManager.OP_MONITOR_LOCATION, |
| 46 | AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION, |
| 47 | }; |
| 48 | |
| 49 | private final PackageManager mPackageManager; |
| 50 | private final Context mContext; |
| 51 | |
| 52 | public RecentLocationApps(Context context) { |
| 53 | mContext = context; |
| 54 | mPackageManager = context.getPackageManager(); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Fills a list of applications which queried location recently within specified time. |
| 59 | */ |
| 60 | public List<Request> getAppList() { |
| 61 | // Retrieve a location usage list from AppOps |
| 62 | AppOpsManager aoManager = |
| 63 | (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE); |
| 64 | List<AppOpsManager.PackageOps> appOps = aoManager.getPackagesForOps(LOCATION_OPS); |
| 65 | |
Tony Mantler | d6cc7909 | 2016-02-09 14:12:43 -0800 | [diff] [blame] | 66 | final int appOpsCount = appOps != null ? appOps.size() : 0; |
| 67 | |
Tony Mantler | 65eb4ad | 2015-11-04 15:52:25 -0800 | [diff] [blame] | 68 | // Process the AppOps list and generate a preference list. |
Tony Mantler | d6cc7909 | 2016-02-09 14:12:43 -0800 | [diff] [blame] | 69 | ArrayList<Request> requests = new ArrayList<>(appOpsCount); |
Tony Mantler | 65eb4ad | 2015-11-04 15:52:25 -0800 | [diff] [blame] | 70 | final long now = System.currentTimeMillis(); |
| 71 | final UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| 72 | final List<UserHandle> profiles = um.getUserProfiles(); |
| 73 | |
Tony Mantler | d6cc7909 | 2016-02-09 14:12:43 -0800 | [diff] [blame] | 74 | for (int i = 0; i < appOpsCount; ++i) { |
Tony Mantler | 65eb4ad | 2015-11-04 15:52:25 -0800 | [diff] [blame] | 75 | AppOpsManager.PackageOps ops = appOps.get(i); |
| 76 | // Don't show the Android System in the list - it's not actionable for the user. |
| 77 | // Also don't show apps belonging to background users except managed users. |
| 78 | String packageName = ops.getPackageName(); |
| 79 | int uid = ops.getUid(); |
| 80 | int userId = UserHandle.getUserId(uid); |
| 81 | boolean isAndroidOs = |
| 82 | (uid == Process.SYSTEM_UID) && ANDROID_SYSTEM_PACKAGE_NAME.equals(packageName); |
| 83 | if (isAndroidOs || !profiles.contains(new UserHandle(userId))) { |
| 84 | continue; |
| 85 | } |
| 86 | Request request = getRequestFromOps(now, ops); |
| 87 | if (request != null) { |
| 88 | requests.add(request); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | return requests; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Creates a Request entry for the given PackageOps. |
| 97 | * |
| 98 | * This method examines the time interval of the PackageOps first. If the PackageOps is older |
| 99 | * than the designated interval, this method ignores the PackageOps object and returns null. |
| 100 | * When the PackageOps is fresh enough, this method returns a Request object for the package |
| 101 | */ |
| 102 | private Request getRequestFromOps(long now, |
| 103 | AppOpsManager.PackageOps ops) { |
| 104 | String packageName = ops.getPackageName(); |
| 105 | List<AppOpsManager.OpEntry> entries = ops.getOps(); |
| 106 | boolean highBattery = false; |
| 107 | boolean normalBattery = false; |
| 108 | // Earliest time for a location request to end and still be shown in list. |
| 109 | long recentLocationCutoffTime = now - RECENT_TIME_INTERVAL_MILLIS; |
| 110 | for (AppOpsManager.OpEntry entry : entries) { |
| 111 | if (entry.isRunning() || entry.getTime() >= recentLocationCutoffTime) { |
| 112 | switch (entry.getOp()) { |
| 113 | case AppOpsManager.OP_MONITOR_LOCATION: |
| 114 | normalBattery = true; |
| 115 | break; |
| 116 | case AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION: |
| 117 | highBattery = true; |
| 118 | break; |
| 119 | default: |
| 120 | break; |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | if (!highBattery && !normalBattery) { |
| 126 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 127 | Log.v(TAG, packageName + " hadn't used location within the time interval."); |
| 128 | } |
| 129 | return null; |
| 130 | } |
| 131 | |
| 132 | // The package is fresh enough, continue. |
| 133 | |
| 134 | int uid = ops.getUid(); |
| 135 | int userId = UserHandle.getUserId(uid); |
| 136 | |
| 137 | Request request = null; |
| 138 | try { |
| 139 | IPackageManager ipm = AppGlobals.getPackageManager(); |
| 140 | ApplicationInfo appInfo = |
| 141 | ipm.getApplicationInfo(packageName, PackageManager.GET_META_DATA, userId); |
| 142 | if (appInfo == null) { |
| 143 | Log.w(TAG, "Null application info retrieved for package " + packageName |
| 144 | + ", userId " + userId); |
| 145 | return null; |
| 146 | } |
| 147 | |
| 148 | final UserHandle userHandle = new UserHandle(userId); |
| 149 | Drawable appIcon = mPackageManager.getApplicationIcon(appInfo); |
| 150 | Drawable icon = mPackageManager.getUserBadgedIcon(appIcon, userHandle); |
| 151 | CharSequence appLabel = mPackageManager.getApplicationLabel(appInfo); |
| 152 | CharSequence badgedAppLabel = mPackageManager.getUserBadgedLabel(appLabel, userHandle); |
| 153 | if (appLabel.toString().contentEquals(badgedAppLabel)) { |
| 154 | // If badged label is not different from original then no need for it as |
| 155 | // a separate content description. |
| 156 | badgedAppLabel = null; |
| 157 | } |
| 158 | request = new Request(packageName, userHandle, icon, appLabel, highBattery, |
| 159 | badgedAppLabel); |
| 160 | } catch (RemoteException e) { |
| 161 | Log.w(TAG, "Error while retrieving application info for package " + packageName |
| 162 | + ", userId " + userId, e); |
| 163 | } |
| 164 | |
| 165 | return request; |
| 166 | } |
| 167 | |
| 168 | public static class Request { |
| 169 | public final String packageName; |
| 170 | public final UserHandle userHandle; |
| 171 | public final Drawable icon; |
| 172 | public final CharSequence label; |
| 173 | public final boolean isHighBattery; |
| 174 | public final CharSequence contentDescription; |
| 175 | |
| 176 | private Request(String packageName, UserHandle userHandle, Drawable icon, |
| 177 | CharSequence label, boolean isHighBattery, CharSequence contentDescription) { |
| 178 | this.packageName = packageName; |
| 179 | this.userHandle = userHandle; |
| 180 | this.icon = icon; |
| 181 | this.label = label; |
| 182 | this.isHighBattery = isHighBattery; |
| 183 | this.contentDescription = contentDescription; |
| 184 | } |
| 185 | } |
| 186 | } |