| /* |
| * Copyright (C) 2018 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.slice; |
| |
| import android.content.Context; |
| import android.content.pm.UserInfo; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.ArraySet; |
| import android.util.SparseArray; |
| |
| import com.android.internal.util.XmlUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| public class SliceFullAccessList { |
| |
| static final int DB_VERSION = 1; |
| private static final String TAG = "SliceFullAccessList"; |
| |
| private static final String TAG_LIST = "slice-access-list"; |
| private static final String TAG_PKG = "pkg"; |
| private static final String TAG_USER = "user"; |
| |
| private final String ATT_USER_ID = "user"; |
| private final String ATT_VERSION = "version"; |
| |
| private final SparseArray<ArraySet<String>> mFullAccessPkgs = new SparseArray<>(); |
| private final Context mContext; |
| |
| public SliceFullAccessList(Context context) { |
| mContext = context; |
| } |
| |
| public boolean hasFullAccess(String pkg, int userId) { |
| ArraySet<String> pkgs = mFullAccessPkgs.get(userId, null); |
| return pkgs != null && pkgs.contains(pkg); |
| } |
| |
| public void grantFullAccess(String pkg, int userId) { |
| ArraySet<String> pkgs = mFullAccessPkgs.get(userId, null); |
| if (pkgs == null) { |
| pkgs = new ArraySet<>(); |
| mFullAccessPkgs.put(userId, pkgs); |
| } |
| pkgs.add(pkg); |
| } |
| |
| public void removeGrant(String pkg, int userId) { |
| ArraySet<String> pkgs = mFullAccessPkgs.get(userId, null); |
| if (pkgs == null) { |
| pkgs = new ArraySet<>(); |
| mFullAccessPkgs.put(userId, pkgs); |
| } |
| pkgs.remove(pkg); |
| } |
| |
| public void writeXml(XmlSerializer out, int user) throws IOException { |
| out.startTag(null, TAG_LIST); |
| out.attribute(null, ATT_VERSION, String.valueOf(DB_VERSION)); |
| |
| final int N = mFullAccessPkgs.size(); |
| for (int i = 0 ; i < N; i++) { |
| final int userId = mFullAccessPkgs.keyAt(i); |
| final ArraySet<String> pkgs = mFullAccessPkgs.valueAt(i); |
| if (user != UserHandle.USER_ALL && user != userId) { |
| continue; |
| } |
| out.startTag(null, TAG_USER); |
| out.attribute(null, ATT_USER_ID, Integer.toString(userId)); |
| if (pkgs != null) { |
| final int M = pkgs.size(); |
| for (int j = 0; j < M; j++) { |
| out.startTag(null, TAG_PKG); |
| out.text(pkgs.valueAt(j)); |
| out.endTag(null, TAG_PKG); |
| } |
| } |
| out.endTag(null, TAG_USER); |
| } |
| out.endTag(null, TAG_LIST); |
| } |
| |
| public void readXml(XmlPullParser parser) throws XmlPullParserException, IOException { |
| // upgrade xml |
| int xmlVersion = XmlUtils.readIntAttribute(parser, ATT_VERSION, 0); |
| final List<UserInfo> activeUsers = UserManager.get(mContext).getUsers(true); |
| for (UserInfo userInfo : activeUsers) { |
| upgradeXml(xmlVersion, userInfo.getUserHandle().getIdentifier()); |
| } |
| |
| mFullAccessPkgs.clear(); |
| // read grants |
| int type; |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| String tag = parser.getName(); |
| if (type == XmlPullParser.END_TAG |
| && TAG_LIST.equals(tag)) { |
| break; |
| } |
| if (type == XmlPullParser.START_TAG) { |
| if (TAG_USER.equals(tag)) { |
| final int userId = XmlUtils.readIntAttribute(parser, ATT_USER_ID, 0); |
| ArraySet<String> pkgs = new ArraySet<>(); |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| String userTag = parser.getName(); |
| if (type == XmlPullParser.END_TAG |
| && TAG_USER.equals(userTag)) { |
| break; |
| } |
| if (type == XmlPullParser.START_TAG) { |
| if (TAG_PKG.equals(userTag)) { |
| final String pkg = parser.nextText(); |
| pkgs.add(pkg); |
| } |
| } |
| } |
| mFullAccessPkgs.put(userId, pkgs); |
| } |
| } |
| } |
| } |
| |
| protected void upgradeXml(final int xmlVersion, final int userId) {} |
| } |