PackageSetting.java revision 82b0842051a93764e96a68072da1a220f00c2c27
1/* 2 * Copyright (C) 2011 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.server.pm; 18 19import android.content.pm.ApplicationInfo; 20import android.content.pm.PackageManager; 21import android.content.pm.PackageParser; 22import android.content.pm.UserInfo; 23import android.service.pm.PackageProto; 24import android.util.proto.ProtoOutputStream; 25 26import com.android.server.pm.permission.PermissionsState; 27 28import java.io.File; 29import java.util.List; 30 31/** 32 * Settings data for a particular package we know about. 33 */ 34public final class PackageSetting extends PackageSettingBase { 35 int appId; 36 PackageParser.Package pkg; 37 /** 38 * WARNING. The object reference is important. We perform integer equality and NOT 39 * object equality to check whether shared user settings are the same. 40 */ 41 SharedUserSetting sharedUser; 42 /** 43 * Temporary holding space for the shared user ID. While parsing package settings, the 44 * shared users tag may come after the packages. In this case, we must delay linking the 45 * shared user setting with the package setting. The shared user ID lets us link the 46 * two objects. 47 */ 48 private int sharedUserId; 49 50 PackageSetting(String name, String realName, File codePath, File resourcePath, 51 String legacyNativeLibraryPathString, String primaryCpuAbiString, 52 String secondaryCpuAbiString, String cpuAbiOverrideString, 53 int pVersionCode, int pkgFlags, int privateFlags, String parentPackageName, 54 List<String> childPackageNames, int sharedUserId, String[] usesStaticLibraries, 55 int[] usesStaticLibrariesVersions) { 56 super(name, realName, codePath, resourcePath, legacyNativeLibraryPathString, 57 primaryCpuAbiString, secondaryCpuAbiString, cpuAbiOverrideString, 58 pVersionCode, pkgFlags, privateFlags, parentPackageName, childPackageNames, 59 usesStaticLibraries, usesStaticLibrariesVersions); 60 this.sharedUserId = sharedUserId; 61 } 62 63 /** 64 * New instance of PackageSetting replicating the original settings. 65 * Note that it keeps the same PackageParser.Package instance. 66 */ 67 PackageSetting(PackageSetting orig) { 68 super(orig, orig.realName); 69 doCopy(orig); 70 } 71 72 /** 73 * New instance of PackageSetting replicating the original settings, but, allows specifying 74 * a real package name. 75 * Note that it keeps the same PackageParser.Package instance. 76 */ 77 PackageSetting(PackageSetting orig, String realPkgName) { 78 super(orig, realPkgName); 79 doCopy(orig); 80 } 81 82 public int getSharedUserId() { 83 if (sharedUser != null) { 84 return sharedUser.userId; 85 } 86 return sharedUserId; 87 } 88 89 @Override 90 public String toString() { 91 return "PackageSetting{" 92 + Integer.toHexString(System.identityHashCode(this)) 93 + " " + name + "/" + appId + "}"; 94 } 95 96 public void copyFrom(PackageSetting orig) { 97 super.copyFrom(orig); 98 doCopy(orig); 99 } 100 101 private void doCopy(PackageSetting orig) { 102 appId = orig.appId; 103 pkg = orig.pkg; 104 sharedUser = orig.sharedUser; 105 sharedUserId = orig.sharedUserId; 106 } 107 108 @Override 109 public PermissionsState getPermissionsState() { 110 return (sharedUser != null) 111 ? sharedUser.getPermissionsState() 112 : super.getPermissionsState(); 113 } 114 115 public PackageParser.Package getPackage() { 116 return pkg; 117 } 118 119 public boolean isPrivileged() { 120 return (pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0; 121 } 122 123 public boolean isOem() { 124 return (pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_OEM) != 0; 125 } 126 127 public boolean isForwardLocked() { 128 return (pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK) != 0; 129 } 130 131 public boolean isSystem() { 132 return (pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0; 133 } 134 135 @Override 136 public boolean isSharedUser() { 137 return sharedUser != null; 138 } 139 140 public boolean isMatch(int flags) { 141 if ((flags & PackageManager.MATCH_SYSTEM_ONLY) != 0) { 142 return isSystem(); 143 } 144 return true; 145 } 146 147 public void writeToProto(ProtoOutputStream proto, long fieldId, List<UserInfo> users) { 148 final long packageToken = proto.start(fieldId); 149 proto.write(PackageProto.NAME, (realName != null ? realName : name)); 150 proto.write(PackageProto.UID, appId); 151 proto.write(PackageProto.VERSION_CODE, versionCode); 152 proto.write(PackageProto.VERSION_STRING, pkg.mVersionName); 153 proto.write(PackageProto.INSTALL_TIME_MS, firstInstallTime); 154 proto.write(PackageProto.UPDATE_TIME_MS, lastUpdateTime); 155 proto.write(PackageProto.INSTALLER_NAME, installerPackageName); 156 157 if (pkg != null) { 158 long splitToken = proto.start(PackageProto.SPLITS); 159 proto.write(PackageProto.SplitProto.NAME, "base"); 160 proto.write(PackageProto.SplitProto.REVISION_CODE, pkg.baseRevisionCode); 161 proto.end(splitToken); 162 if (pkg.splitNames != null) { 163 for (int i = 0; i < pkg.splitNames.length; i++) { 164 splitToken = proto.start(PackageProto.SPLITS); 165 proto.write(PackageProto.SplitProto.NAME, pkg.splitNames[i]); 166 proto.write(PackageProto.SplitProto.REVISION_CODE, pkg.splitRevisionCodes[i]); 167 proto.end(splitToken); 168 } 169 } 170 } 171 writeUsersInfoToProto(proto, PackageProto.USERS); 172 proto.end(packageToken); 173 } 174} 175