Aurimas Liutikas | 88c7ff1 | 2023-08-10 12:42:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2022 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.server.pm; |
| 18 | |
| 19 | import android.content.Intent; |
| 20 | import android.content.pm.ActivityInfo; |
| 21 | import android.content.pm.ResolveInfo; |
| 22 | import android.content.pm.UserInfo; |
| 23 | import android.os.Binder; |
| 24 | import android.os.UserHandle; |
| 25 | |
| 26 | import com.android.internal.util.CollectionUtils; |
| 27 | import com.android.server.pm.pkg.PackageStateInternal; |
| 28 | import com.android.server.pm.resolution.ComponentResolverApi; |
| 29 | |
| 30 | import java.util.List; |
| 31 | import java.util.function.Function; |
| 32 | |
| 33 | /** |
| 34 | * Abstract Class act as base class for Cross Profile strategy. |
| 35 | * This will be used by {@link CrossProfileIntentResolverEngine} to resolve intent across profile. |
| 36 | */ |
| 37 | public abstract class CrossProfileResolver { |
| 38 | |
| 39 | protected ComponentResolverApi mComponentResolver; |
| 40 | protected UserManagerService mUserManager; |
| 41 | |
| 42 | public CrossProfileResolver(ComponentResolverApi componentResolver, |
| 43 | UserManagerService userManager) { |
| 44 | mComponentResolver = componentResolver; |
| 45 | mUserManager = userManager; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * This method would be overridden by concrete implementation. This method should define how to |
| 50 | * resolve given intent request in target profile. |
| 51 | * @param computer ComputerEngine instance that would be needed by ComponentResolverApi |
| 52 | * @param intent request |
| 53 | * @param resolvedType the MIME data type of intent request |
| 54 | * @param userId source/initiating user |
| 55 | * @param targetUserId target user id |
| 56 | * @param flags of intent request |
| 57 | * @param pkgName package name if defined. |
| 58 | * @param matchingFilters {@link CrossProfileIntentFilter}s configured for source user, |
| 59 | * targeting the targetUserId |
| 60 | * @param hasNonNegativePriorityResult if source have any non-negative(active and valid) |
| 61 | * resolveInfo in their profile. |
| 62 | * @param pkgSettingFunction function to find PackageStateInternal for given package |
| 63 | * @return list of {@link CrossProfileDomainInfo} |
| 64 | */ |
| 65 | public abstract List<CrossProfileDomainInfo> resolveIntent(Computer computer, Intent intent, |
| 66 | String resolvedType, int userId, int targetUserId, long flags, |
| 67 | String pkgName, List<CrossProfileIntentFilter> matchingFilters, |
| 68 | boolean hasNonNegativePriorityResult, |
| 69 | Function<String, PackageStateInternal> pkgSettingFunction); |
| 70 | |
| 71 | /** |
| 72 | * Filters the CrossProfileDomainInfos, the filtering technique would be defined by concrete |
| 73 | * implementation class |
| 74 | * @param intent request |
| 75 | * @param crossProfileDomainInfos resolved in target user |
| 76 | * @param flags for intent resolution |
| 77 | * @param sourceUserId source user |
| 78 | * @param targetUserId target user |
| 79 | * @param highestApprovalLevel highest level of domain approval |
| 80 | * @return filtered list of {@link CrossProfileDomainInfo} |
| 81 | */ |
| 82 | public abstract List<CrossProfileDomainInfo> filterResolveInfoWithDomainPreferredActivity( |
| 83 | Intent intent, List<CrossProfileDomainInfo> crossProfileDomainInfos, long flags, |
| 84 | int sourceUserId, int targetUserId, int highestApprovalLevel); |
| 85 | |
| 86 | /** |
| 87 | * Checks if mentioned user is enabled |
| 88 | * @param userId of requested user |
| 89 | * @return true if user is enabled |
| 90 | */ |
| 91 | protected final boolean isUserEnabled(int userId) { |
| 92 | final long callingId = Binder.clearCallingIdentity(); |
| 93 | try { |
| 94 | UserInfo userInfo = mUserManager.getUserInfo(userId); |
| 95 | return userInfo != null && userInfo.isEnabled(); |
| 96 | } finally { |
| 97 | Binder.restoreCallingIdentity(callingId); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Filters out {@link CrossProfileDomainInfo} if they are not for any user apart from system |
| 103 | * user. If mentioned user is system user, then returns all responses. |
| 104 | * @param crossProfileDomainInfos result from resolution |
| 105 | * @param userId source user id |
| 106 | * @return filtered list of {@link CrossProfileDomainInfo} |
| 107 | */ |
| 108 | protected final List<CrossProfileDomainInfo> filterIfNotSystemUser( |
| 109 | List<CrossProfileDomainInfo> crossProfileDomainInfos, int userId) { |
| 110 | if (userId == UserHandle.USER_SYSTEM) { |
| 111 | return crossProfileDomainInfos; |
| 112 | } |
| 113 | |
| 114 | for (int i = CollectionUtils.size(crossProfileDomainInfos) - 1; i >= 0; i--) { |
| 115 | ResolveInfo info = crossProfileDomainInfos.get(i).mResolveInfo; |
| 116 | if ((info.activityInfo.flags & ActivityInfo.FLAG_SYSTEM_USER_ONLY) != 0) { |
| 117 | crossProfileDomainInfos.remove(i); |
| 118 | } |
| 119 | } |
| 120 | return crossProfileDomainInfos; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Returns user info of parent profile is applicable |
| 125 | * @param userId requested user |
| 126 | * @return parent's user info, null if parent is not present |
| 127 | */ |
| 128 | protected final UserInfo getProfileParent(int userId) { |
| 129 | final long identity = Binder.clearCallingIdentity(); |
| 130 | try { |
| 131 | return mUserManager.getProfileParent(userId); |
| 132 | } finally { |
| 133 | Binder.restoreCallingIdentity(identity); |
| 134 | } |
| 135 | } |
| 136 | } |