/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.pm;
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import android.annotation.NonNull;
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import android.content.pm.PackageInfo;
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import android.content.pm.ShortcutInfo;
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import android.util.Slog;
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import com.android.internal.util.Preconditions;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.xmlpull.v1.XmlPullParserException;
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import org.xmlpull.v1.XmlSerializer;
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import java.io.IOException;
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/**
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* All methods should be guarded by {@code #mShortcutUser.mService.mLock}.
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*/
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abstract class ShortcutPackageItem {
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private static final String TAG = ShortcutService.TAG;
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private static final String KEY_NAME = "name";
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private final int mPackageUserId;
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private final String mPackageName;
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private final ShortcutPackageInfo mPackageInfo;
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protected ShortcutUser mShortcutUser;
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protected ShortcutPackageItem(@NonNull ShortcutUser shortcutUser,
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int packageUserId, @NonNull String packageName,
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@NonNull ShortcutPackageInfo packageInfo) {
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mShortcutUser = shortcutUser;
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mPackageUserId = packageUserId;
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mPackageName = Preconditions.checkStringNotEmpty(packageName);
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mPackageInfo = Preconditions.checkNotNull(packageInfo);
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}
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/**
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* Change the parent {@link ShortcutUser}. Need it in the restore code.
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*/
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public void replaceUser(ShortcutUser user) {
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mShortcutUser = user;
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}
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public ShortcutUser getUser() {
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return mShortcutUser;
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}
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/**
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* ID of the user who actually has this package running on. For {@link ShortcutPackage},
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* this is the same thing as {@link #getOwnerUserId}, but if it's a {@link ShortcutLauncher} and
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* {@link #getOwnerUserId} is of work profile, then this ID is of the primary user.
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*/
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public int getPackageUserId() {
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return mPackageUserId;
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}
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/**
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* ID of the user who sees the shortcuts from this instance.
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*/
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public abstract int getOwnerUserId();
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@NonNull
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public String getPackageName() {
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return mPackageName;
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}
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public ShortcutPackageInfo getPackageInfo() {
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return mPackageInfo;
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}
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public void refreshPackageSignatureAndSave() {
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if (mPackageInfo.isShadow()) {
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return; // Don't refresh for shadow user.
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}
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final ShortcutService s = mShortcutUser.mService;
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mPackageInfo.refreshSignature(s, this);
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s.scheduleSaveUser(getOwnerUserId());
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}
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public void attemptToRestoreIfNeededAndSave() {
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if (!mPackageInfo.isShadow()) {
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return; // Already installed, nothing to do.
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}
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final ShortcutService s = mShortcutUser.mService;
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if (!s.isPackageInstalled(mPackageName, mPackageUserId)) {
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if (ShortcutService.DEBUG) {
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Slog.d(TAG, String.format("Package still not installed: %s/u%d",
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mPackageName, mPackageUserId));
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}
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return; // Not installed, no need to restore yet.
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}
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int restoreBlockReason;
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long currentVersionCode = ShortcutInfo.VERSION_CODE_UNKNOWN;
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if (!mPackageInfo.hasSignatures()) {
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s.wtf("Attempted to restore package " + mPackageName + "/u" + mPackageUserId
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+ " but signatures not found in the restore data.");
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restoreBlockReason = ShortcutInfo.DISABLED_REASON_SIGNATURE_MISMATCH;
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} else {
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final PackageInfo pi = s.getPackageInfoWithSignatures(mPackageName, mPackageUserId);
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currentVersionCode = pi.getLongVersionCode();
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restoreBlockReason = mPackageInfo.canRestoreTo(s, pi, canRestoreAnyVersion());
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}
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if (ShortcutService.DEBUG) {
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Slog.d(TAG, String.format("Restoring package: %s/u%d (version=%d) %s for u%d",
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mPackageName, mPackageUserId, currentVersionCode,
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ShortcutInfo.getDisabledReasonDebugString(restoreBlockReason),
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getOwnerUserId()));
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}
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onRestored(restoreBlockReason);
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// Either way, it's no longer a shadow.
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mPackageInfo.setShadow(false);
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s.scheduleSaveUser(mPackageUserId);
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}
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protected abstract boolean canRestoreAnyVersion();
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protected abstract void onRestored(int restoreBlockReason);
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public abstract void saveToXml(@NonNull XmlSerializer out, boolean forBackup)
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throws IOException, XmlPullParserException;
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public JSONObject dumpCheckin(boolean clear) throws JSONException {
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final JSONObject result = new JSONObject();
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result.put(KEY_NAME, mPackageName);
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return result;
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}
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/**
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* Verify various internal states.
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*/
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public void verifyStates() {
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}
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}
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