163 lines
5.1 KiB
Java
163 lines
5.1 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.me.cache;
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import java.util.ArrayList;
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import java.util.EnumSet;
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import java.util.HashMap;
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import java.util.List;
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import appeng.api.config.SecurityPermissions;
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import appeng.api.networking.IGrid;
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import appeng.api.networking.IGridHost;
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import appeng.api.networking.IGridNode;
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import appeng.api.networking.IGridStorage;
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import appeng.api.networking.events.MENetworkEventSubscribe;
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import appeng.api.networking.events.MENetworkSecurityChange;
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import appeng.api.networking.security.ISecurityGrid;
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import appeng.api.networking.security.ISecurityProvider;
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import appeng.core.worlddata.WorldData;
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import appeng.me.GridNode;
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import com.google.common.base.Preconditions;
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import com.mojang.authlib.GameProfile;
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import net.minecraft.entity.player.EntityPlayer;
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public class SecurityCache implements ISecurityGrid {
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private final IGrid myGrid;
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private final List<ISecurityProvider> securityProvider
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= new ArrayList<ISecurityProvider>();
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private final HashMap<Integer, EnumSet<SecurityPermissions>> playerPerms
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= new HashMap<Integer, EnumSet<SecurityPermissions>>();
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private long securityKey = -1;
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public SecurityCache(final IGrid g) {
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this.myGrid = g;
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}
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@MENetworkEventSubscribe
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public void updatePermissions(final MENetworkSecurityChange ev) {
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this.playerPerms.clear();
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if (this.securityProvider.isEmpty()) {
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return;
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}
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this.securityProvider.get(0).readPermissions(this.playerPerms);
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}
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public long getSecurityKey() {
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return this.securityKey;
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}
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@Override
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public void onUpdateTick() {}
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@Override
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public void removeNode(final IGridNode gridNode, final IGridHost machine) {
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if (machine instanceof ISecurityProvider) {
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this.securityProvider.remove(machine);
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this.updateSecurityKey();
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}
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}
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private void updateSecurityKey() {
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final long lastCode = this.securityKey;
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if (this.securityProvider.size() == 1) {
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this.securityKey = this.securityProvider.get(0).getSecurityKey();
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} else {
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this.securityKey = -1;
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}
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if (lastCode != this.securityKey) {
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this.getGrid().postEvent(new MENetworkSecurityChange());
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for (final IGridNode n : this.getGrid().getNodes()) {
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((GridNode) n).setLastSecurityKey(this.securityKey);
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}
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}
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}
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@Override
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public void addNode(final IGridNode gridNode, final IGridHost machine) {
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if (machine instanceof ISecurityProvider) {
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this.securityProvider.add((ISecurityProvider) machine);
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this.updateSecurityKey();
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} else {
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((GridNode) gridNode).setLastSecurityKey(this.securityKey);
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}
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}
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@Override
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public void onSplit(final IGridStorage destinationStorage) {}
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@Override
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public void onJoin(final IGridStorage sourceStorage) {}
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@Override
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public void populateGridStorage(final IGridStorage destinationStorage) {}
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@Override
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public boolean isAvailable() {
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return this.securityProvider.size() == 1
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&& this.securityProvider.get(0).isSecurityEnabled();
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}
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@Override
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public boolean
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hasPermission(final EntityPlayer player, final SecurityPermissions perm) {
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Preconditions.checkNotNull(player);
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Preconditions.checkNotNull(perm);
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final GameProfile profile = player.getGameProfile();
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final int playerID = WorldData.instance().playerData().getPlayerID(profile);
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return this.hasPermission(playerID, perm);
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}
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@Override
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public boolean hasPermission(final int playerID, final SecurityPermissions perm) {
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if (this.isAvailable()) {
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final EnumSet<SecurityPermissions> perms = this.playerPerms.get(playerID);
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if (perms == null) {
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if (playerID == -1) // no default?
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{
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return false;
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} else {
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return this.hasPermission(-1, perm);
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}
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}
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return perms.contains(perm);
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}
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return true;
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}
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@Override
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public int getOwner() {
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if (this.isAvailable()) {
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return this.securityProvider.get(0).getOwner();
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}
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return -1;
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}
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public IGrid getGrid() {
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return this.myGrid;
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}
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}
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