| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.pm.verify.domain; |
| |
| import android.annotation.CheckResult; |
| import android.annotation.NonNull; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.text.TextUtils; |
| import android.util.Patterns; |
| |
| import com.android.internal.util.CollectionUtils; |
| import com.android.server.compat.PlatformCompat; |
| import com.android.server.pm.PackageManagerService; |
| import com.android.server.pm.parsing.pkg.AndroidPackage; |
| |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| |
| public final class DomainVerificationUtils { |
| |
| private static final ThreadLocal<Matcher> sCachedMatcher = ThreadLocal.withInitial( |
| () -> Patterns.DOMAIN_NAME.matcher("")); |
| |
| /** |
| * Consolidates package exception messages. A generic unavailable message is included since the |
| * caller doesn't bother to check why the package isn't available. |
| */ |
| @CheckResult |
| static NameNotFoundException throwPackageUnavailable(@NonNull String packageName) |
| throws NameNotFoundException { |
| throw new NameNotFoundException("Package " + packageName + " unavailable"); |
| } |
| |
| public static boolean isDomainVerificationIntent(Intent intent, |
| @PackageManager.ResolveInfoFlags int resolveInfoFlags) { |
| if (!intent.isWebIntent()) { |
| return false; |
| } |
| |
| String host = intent.getData().getHost(); |
| if (TextUtils.isEmpty(host)) { |
| return false; |
| } |
| |
| if (!sCachedMatcher.get().reset(host).matches()) { |
| return false; |
| } |
| |
| Set<String> categories = intent.getCategories(); |
| int categoriesSize = CollectionUtils.size(categories); |
| if (categoriesSize > 2) { |
| // Specifying at least one non-app-link category |
| return false; |
| } else if (categoriesSize == 2) { |
| // Check for explicit app link intent with exactly BROWSABLE && DEFAULT |
| return intent.hasCategory(Intent.CATEGORY_DEFAULT) |
| && intent.hasCategory(Intent.CATEGORY_BROWSABLE); |
| } |
| |
| boolean matchDefaultByFlags = (resolveInfoFlags & PackageManager.MATCH_DEFAULT_ONLY) != 0; |
| |
| // Check if matches (BROWSABLE || none) && DEFAULT |
| if (categoriesSize == 0) { |
| // No categories, only allow matching DEFAULT by flags |
| return matchDefaultByFlags; |
| } else if (intent.hasCategory(Intent.CATEGORY_BROWSABLE)) { |
| // Intent matches BROWSABLE, must match DEFAULT by flags |
| return matchDefaultByFlags; |
| } else { |
| // Otherwise only needs to have DEFAULT |
| return intent.hasCategory(Intent.CATEGORY_DEFAULT); |
| } |
| } |
| |
| static boolean isChangeEnabled(PlatformCompat platformCompat, AndroidPackage pkg, |
| long changeId) { |
| return platformCompat.isChangeEnabledInternalNoLogging(changeId, buildMockAppInfo(pkg)); |
| } |
| |
| /** |
| * Passed to {@link PlatformCompat} because this can be invoked mid-install process or when |
| * {@link PackageManagerService#mLock} is being held, and {@link PlatformCompat} will not be |
| * able to query the pending {@link ApplicationInfo} from {@link PackageManager}. |
| * <p> |
| * TODO(b/177613575): Can a different API be used? |
| */ |
| @NonNull |
| private static ApplicationInfo buildMockAppInfo(@NonNull AndroidPackage pkg) { |
| ApplicationInfo appInfo = new ApplicationInfo(); |
| appInfo.packageName = pkg.getPackageName(); |
| appInfo.targetSdkVersion = pkg.getTargetSdkVersion(); |
| return appInfo; |
| } |
| } |