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Tie up lose ends with NmsBlock class loading.

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This commit is contained in:
Wizjany 2013-01-19 18:33:23 -05:00
parent d64a16da48
commit 89bdd8d9ba
10 changed files with 59 additions and 459 deletions
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contrib/nmsblocks/CBXNmsBlock_146.class
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contrib/nmsblocks/MCPCPXNmsBlock.java
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@ -1,449 +0,0 @@
// $Id$
/*
* This file is a part of WorldEdit.
* Copyright (c) sk89q <http://www.sk89q.com>
* Copyright (c) the WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import net.minecraft.server.v1_4_R1.NBTBase;
import net.minecraft.server.v1_4_R1.NBTTagByte;
import net.minecraft.server.v1_4_R1.NBTTagByteArray;
import net.minecraft.server.v1_4_R1.NBTTagCompound;
import net.minecraft.server.v1_4_R1.NBTTagDouble;
import net.minecraft.server.v1_4_R1.NBTTagEnd;
import net.minecraft.server.v1_4_R1.NBTTagFloat;
import net.minecraft.server.v1_4_R1.NBTTagInt;
import net.minecraft.server.v1_4_R1.NBTTagIntArray;
import net.minecraft.server.v1_4_R1.NBTTagList;
import net.minecraft.server.v1_4_R1.NBTTagLong;
import net.minecraft.server.v1_4_R1.NBTTagShort;
import net.minecraft.server.v1_4_R1.NBTTagString;
import net.minecraft.server.v1_4_R1.TileEntity;
import org.bukkit.World;
import org.bukkit.craftbukkit.v1_4_R1.CraftWorld;
import com.sk89q.jnbt.ByteArrayTag;
import com.sk89q.jnbt.ByteTag;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.DoubleTag;
import com.sk89q.jnbt.EndTag;
import com.sk89q.jnbt.FloatTag;
import com.sk89q.jnbt.IntArrayTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.ListTag;
import com.sk89q.jnbt.LongTag;
import com.sk89q.jnbt.NBTConstants;
import com.sk89q.jnbt.ShortTag;
import com.sk89q.jnbt.StringTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.blocks.BaseBlock;
import com.sk89q.worldedit.blocks.TileEntityBlock;
import com.sk89q.worldedit.bukkit.BukkitWorld;
import com.sk89q.worldedit.bukkit.NmsBlock;
import com.sk89q.worldedit.data.DataException;
import com.sk89q.worldedit.foundation.Block;
/**
* This class needs to be obfuscated and compiled in a forge environment
*/
public class MCPCPXNmsBlock extends NmsBlock {
private static final Logger logger = Logger.getLogger(MCPCPXNmsBlock.class.getCanonicalName());
private static Field compoundMapField;
private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
private NBTTagCompound nbtData = null;
static {
Field field;
try {
// this part is important, has to be updated manually whenever it changes
field = net.minecraft.server.v1_4_R1.Block.class.getDeclaredField("cs"); // isTileEntity or isContainerBlock
field.setAccessible(true);
} catch (Throwable e) {
// logger.severe("Could not find NMS block tile entity field!");
field = null;
}
nmsBlock_isTileEntityField = field;
}
public static boolean verify() {
try {
Class.forName("org.bukkit.craftbukkit.v1_4_R1.CraftWorld");
} catch (Throwable e) {
return false;
}
return nmsBlock_isTileEntityField != null;
}
/**
* Create a new instance with a given type ID, data value, and previous
* {@link TileEntityBlock}-implementing object.
*
* @param type block type ID
* @param data data value
* @param tileEntityBlock tile entity block
*/
public MCPCPXNmsBlock(int type, int data, TileEntityBlock tileEntityBlock) {
super(type, data);
nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
}
/**
* Create a new instance with a given type ID, data value, and raw
* {@link NBTTagCompound} copy.
*
* @param type block type ID
* @param data data value
* @param nbtData raw NBT data
*/
public MCPCPXNmsBlock(int type, int data, NBTTagCompound nbtData) {
super(type, data);
this.nbtData = nbtData;
}
/**
* Build a {@link NBTTagCompound} that has valid coordinates.
*
* @param pt coordinates to set
* @return the tag compound
*/
private NBTTagCompound getNmsData(Vector pt) {
if (nbtData == null) {
return null;
}
nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
return nbtData;
}
@Override
public boolean hasNbtData() {
return nbtData != null;
}
@Override
public String getNbtId() {
if (nbtData == null) {
return "";
}
return nbtData.getString("id");
}
@Override
public CompoundTag getNbtData() {
if (nbtData == null) {
return new CompoundTag(getNbtId(),
new HashMap<String, Tag>());
}
return (CompoundTag) toNative(nbtData);
}
@Override
public void setNbtData(CompoundTag tag) throws DataException {
if (tag == null) {
this.nbtData = null;
}
this.nbtData = (NBTTagCompound) fromNative(tag);
}
/**
* Build an instance from the given information.
*
* @param world world to get the block from
* @param position position to get the block at
* @param type type ID of block
* @param data data value of block
* @return the block, or null
*/
public static MCPCPXNmsBlock get(World world, Vector position, int type, int data) {
if (!hasTileEntity(type)) {
return null;
}
TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
position.getBlockX(), position.getBlockY(), position.getBlockZ());
if (te != null) {
NBTTagCompound tag = new NBTTagCompound();
te.b(tag); // Load data
return new MCPCPXNmsBlock(type, data, tag);
}
return null;
}
/**
* Set an instance or a {@link TileEntityBlock} to the given position.
*
* @param world world to set the block in
* @param position position to set the block at
* @param block the block to set
* @return true if tile entity data was copied to the world
*/
public static boolean set(World world, Vector position, BaseBlock block) {
NBTTagCompound data = null;
if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
return false;
}
if (block instanceof MCPCPXNmsBlock) {
MCPCPXNmsBlock nmsProxyBlock = (MCPCPXNmsBlock) block;
data = nmsProxyBlock.getNmsData(position);
} else if (block instanceof TileEntityBlock) {
MCPCPXNmsBlock nmsProxyBlock = new MCPCPXNmsBlock(
block.getId(), block.getData(), block);
data = nmsProxyBlock.getNmsData(position);
}
if (data != null) {
TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
position.getBlockX(), position.getBlockY(), position.getBlockZ());
if (te != null) {
te.a(data); // Load data
return true;
}
}
return false;
}
/**
* Tries to set a block 'safely', as in setting the block data to the location, and
* then triggering physics only at the end.
*
* @param world world to set the block in
* @param position position to set the block at
* @param block the block to set
* @param notifyAdjacent true to notify physics and what not
* @return true if block id or data was changed
*/
public static boolean setSafely(BukkitWorld world, Vector position,
Block block, boolean notifyAdjacent) {
int x = position.getBlockX();
int y = position.getBlockY();
int z = position.getBlockZ();
CraftWorld craftWorld = ((CraftWorld) world.getWorld());
boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
x, y, z, block.getId(), block.getData());
if (block instanceof BaseBlock) {
world.copyToWorld(position, (BaseBlock) block);
}
if (changed) {
if (notifyAdjacent) {
craftWorld.getHandle().update(x, y, z, block.getId());
} else {
craftWorld.getHandle().notify(x, y, z);
}
}
return changed;
}
public static boolean hasTileEntity(int type) {
net.minecraft.server.v1_4_R1.Block nmsBlock = getNmsBlock(type);
if (nmsBlock == null) {
return false;
}
try {
return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
} catch (IllegalAccessException e) {
return false;
}
}
public static net.minecraft.server.v1_4_R1.Block getNmsBlock(int type) {
if (type < 0 || type >= net.minecraft.server.v1_4_R1.Block.byId.length) {
return null;
}
return net.minecraft.server.v1_4_R1.Block.byId[type];
}
/**
* Converts from a non-native NMS NBT structure to a native WorldEdit NBT
* structure.
*
* @param foreign non-native NMS NBT structure
* @return native WorldEdit NBT structure
*/
@SuppressWarnings("unchecked")
private static Tag toNative(NBTBase foreign) {
if (foreign == null) {
return null;
}
if (foreign instanceof NBTTagCompound) {
Map<String, Tag> values = new HashMap<String, Tag>();
Collection<Object> foreignValues = null;
if (compoundMapField == null) {
try {
// Method name may change!
foreignValues = ((NBTTagCompound) foreign).c();
} catch (Throwable t) {
try {
// this shouldn't happen here since we are reobfuscating to the correct name
logger.warning("WorldEdit: Couldn't get NBTTagCompound.getLists(), " +
"so we're going to try to get at the 'map' field directly from now on");
if (compoundMapField == null) {
compoundMapField = NBTTagCompound.class.getDeclaredField("map");
compoundMapField.setAccessible(true);
}
} catch (Throwable e) {
// Can't do much beyond this
throw new RuntimeException(e);
}
}
}
if (compoundMapField != null) {
try {
foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
} catch (Throwable e) {
// Can't do much beyond this
throw new RuntimeException(e);
}
}
for (Object obj : foreignValues) {
NBTBase base = (NBTBase) obj;
values.put(base.getName(), toNative(base));
}
return new CompoundTag(foreign.getName(), values);
} else if (foreign instanceof NBTTagByte) {
return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
} else if (foreign instanceof NBTTagByteArray) {
return new ByteArrayTag(foreign.getName(),
((NBTTagByteArray) foreign).data);
} else if (foreign instanceof NBTTagDouble) {
return new DoubleTag(foreign.getName(),
((NBTTagDouble) foreign).data);
} else if (foreign instanceof NBTTagFloat) {
return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
} else if (foreign instanceof NBTTagInt) {
return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
} else if (foreign instanceof NBTTagIntArray) {
return new IntArrayTag(foreign.getName(),
((NBTTagIntArray) foreign).data);
} else if (foreign instanceof NBTTagList) {
List<Tag> values = new ArrayList<Tag>();
NBTTagList foreignList = (NBTTagList) foreign;
int type = NBTConstants.TYPE_BYTE;
for (int i = 0; i < foreignList.size(); i++) {
NBTBase foreignTag = foreignList.get(i);
values.add(toNative(foreignTag));
type = foreignTag.getTypeId();
}
Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
return new ListTag(foreign.getName(), cls, values);
} else if (foreign instanceof NBTTagLong) {
return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
} else if (foreign instanceof NBTTagShort) {
return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
} else if (foreign instanceof NBTTagString) {
return new StringTag(foreign.getName(),
((NBTTagString) foreign).data);
} else if (foreign instanceof NBTTagEnd) {
return new EndTag();
} else {
throw new IllegalArgumentException("Don't know how to make native "
+ foreign.getClass().getCanonicalName());
}
}
/**
* Converts a WorldEdit-native NBT structure to a NMS structure.
*
* @param foreign structure to convert
* @return non-native structure
*/
private static NBTBase fromNative(Tag foreign) {
if (foreign == null) {
return null;
}
if (foreign instanceof CompoundTag) {
NBTTagCompound tag = new NBTTagCompound(foreign.getName());
for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
.getValue().entrySet()) {
tag.set(entry.getKey(), fromNative(entry.getValue()));
}
return tag;
} else if (foreign instanceof ByteTag) {
return new NBTTagByte(foreign.getName(),
((ByteTag) foreign).getValue());
} else if (foreign instanceof ByteArrayTag) {
return new NBTTagByteArray(foreign.getName(),
((ByteArrayTag) foreign).getValue());
} else if (foreign instanceof DoubleTag) {
return new NBTTagDouble(foreign.getName(),
((DoubleTag) foreign).getValue());
} else if (foreign instanceof FloatTag) {
return new NBTTagFloat(foreign.getName(),
((FloatTag) foreign).getValue());
} else if (foreign instanceof IntTag) {
return new NBTTagInt(foreign.getName(),
((IntTag) foreign).getValue());
} else if (foreign instanceof IntArrayTag) {
return new NBTTagIntArray(foreign.getName(),
((IntArrayTag) foreign).getValue());
} else if (foreign instanceof ListTag) {
NBTTagList tag = new NBTTagList(foreign.getName());
ListTag foreignList = (ListTag) foreign;
for (Tag t : foreignList.getValue()) {
tag.add(fromNative(t));
}
return tag;
} else if (foreign instanceof LongTag) {
return new NBTTagLong(foreign.getName(),
((LongTag) foreign).getValue());
} else if (foreign instanceof ShortTag) {
return new NBTTagShort(foreign.getName(),
((ShortTag) foreign).getValue());
} else if (foreign instanceof StringTag) {
return new NBTTagString(foreign.getName(),
((StringTag) foreign).getValue());
} else if (foreign instanceof EndTag) {
return new NBTTagEnd();
} else {
throw new IllegalArgumentException("Don't know how to make NMS "
+ foreign.getClass().getCanonicalName());
}
}
public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_R1.Block.byId.length
&& net.minecraft.server.v1_4_R1.Block.byId[type] != null);
}
}

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pom.xml
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@ -135,6 +135,14 @@
<include>config.yml</include>
</includes>
</resource>
<resource>
<targetPath>nmsblocks/</targetPath>
<filtering>false</filtering>
<directory>${basedir}/src/main/resources/nmsblocks/</directory>
<includes>
<include>*.class</include>
</includes>
</resource>
</resources>
<plugins>

2
src/main/assembly/default.xml
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@ -27,8 +27,6 @@
<includes>
<include>LICENSE.txt</include>
<include>CHANGELOG.txt</include>
<include>contrib/craftscripts/*</include>
<include>contrib/nmsblocks/*.class</include>
</includes>
</fileSet>
</fileSets>

16
src/main/java/com/sk89q/worldedit/bukkit/BukkitWorld.java
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@ -122,6 +122,8 @@ public class BukkitWorld extends LocalWorld {
this.world = world;
// check if we have a class we can use for nms access
// only run once per server startup
if (nmsBlockType != null) return;
Plugin plugin = Bukkit.getPluginManager().getPlugin("WorldEdit");
if (!(plugin instanceof WorldEditPlugin)) return; // hopefully never happens
@ -132,12 +134,20 @@ public class BukkitWorld extends LocalWorld {
return;
}
try {
// make a classloader that can handle our blocks
NmsBlockClassLoader loader = new NmsBlockClassLoader(BukkitWorld.class.getClassLoader(), nmsBlocksDir);
String filename;
for (File f : nmsBlocksDir.listFiles()) {
if (!f.isFile()) continue;
filename = f.getName();
Class<?> testBlock = loader.loadClass("CL-NMS" + filename);
// load class using magic keyword
Class<?> testBlock = null;
try {
testBlock = loader.loadClass("CL-NMS" + filename);
} catch (Throwable e) {
// someone is putting things where they don't belong
continue;
}
filename = filename.replaceFirst(".class$", ""); // get rid of extension
if (NmsBlock.class.isAssignableFrom(testBlock)) {
// got a NmsBlock, test it now
@ -160,7 +170,7 @@ public class BukkitWorld extends LocalWorld {
}
}
if (nmsBlockType != null) {
// logger.info("Found nms block class, using: " + nmsBlockType);
logger.info("[WorldEdit] Using external NmsBlock for this version: " + nmsBlockType.getName());
} else {
// try our default
try {
@ -172,7 +182,7 @@ public class BukkitWorld extends LocalWorld {
nmsGetMethod = nmsBlockType.getMethod("get", World.class, Vector.class, int.class, int.class);
nmsSetSafeMethod = nmsBlockType.getMethod("setSafely",
BukkitWorld.class, Vector.class, com.sk89q.worldedit.foundation.Block.class, boolean.class);
logger.info("[WorldEdit] Using inbuilt NmsBlock for this version of WorldEdit.");
logger.info("[WorldEdit] Using inbuilt NmsBlock for this version.");
}
} catch (Throwable e) {
// OMG DEVS WAI U NO SUPPORT <xyz> SERVER

7
src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java
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@ -250,14 +250,17 @@ public class DefaultNmsBlock extends NmsBlock {
int z = position.getBlockZ();
CraftWorld craftWorld = ((CraftWorld) world.getWorld());
// TileEntity te = craftWorld.getHandle().getTileEntity(x, y, z);
// craftWorld.getHandle().tileEntityList.remove(te);
boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
x, y, z, block.getId(), block.getData());
boolean changed = craftWorld.getHandle().setRawTypeId(x, y, z, block.getId());
if (block instanceof BaseBlock) {
world.copyToWorld(position, (BaseBlock) block);
}
changed = craftWorld.getHandle().setRawData(x, y, z, block.getData()) || changed;
if (changed) {
if (notifyAdjacent) {
craftWorld.getHandle().update(x, y, z, block.getId());

31
src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java
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@ -24,6 +24,8 @@ import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Handler;
import java.util.zip.ZipEntry;
@ -96,7 +98,9 @@ public class WorldEditPlugin extends JavaPlugin {
// Make the data folders that WorldEdit uses
getDataFolder().mkdirs();
new File(getDataFolder() + File.separator + "nmsblocks").mkdir();
File targetDir = new File(getDataFolder() + File.separator + "nmsblocks");
targetDir.mkdir();
copyNmsBlockClasses(targetDir);
// Create the default configuration file
createDefaultConfiguration("config.yml");
@ -121,7 +125,32 @@ public class WorldEditPlugin extends JavaPlugin {
getServer().getScheduler().scheduleAsyncRepeatingTask(this,
new SessionTimer(controller, getServer()), 120, 120);
}
private void copyNmsBlockClasses(File target) {
try {
JarFile jar = new JarFile(getFile());
Enumeration entries = jar.entries();
while (entries.hasMoreElements()) {
JarEntry jarEntry = (JarEntry) entries.nextElement();
if (!jarEntry.getName().startsWith("nmsblocks") || jarEntry.isDirectory()) continue;
File file = new File(target + File.separator + jarEntry.getName().replace("nmsblocks", ""));
if (file.exists()) continue;
InputStream is = jar.getInputStream(jarEntry);
FileOutputStream fos = new FileOutputStream(file);
fos = new FileOutputStream(file);
byte[] buf = new byte[8192];
int length = 0;
while ((length = is.read(buf)) > 0) {
fos.write(buf, 0, length);
}
fos.close();
is.close();
}
} catch (Throwable e) {}
}
/**

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src/main/resources/nmsblocks/CBXNmsBlock_146.class Normal file
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contrib/nmsblocks/CBXNmsBlock_146.java → src/main/resources/nmsblocks/CBXNmsBlock_146.java
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@ -247,13 +247,14 @@ public class CBXNmsBlock_146 extends NmsBlock {
CraftWorld craftWorld = ((CraftWorld) world.getWorld());
boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
x, y, z, block.getId(), block.getData());
boolean changed = craftWorld.getHandle().setRawTypeId(x, y, z, block.getId());
if (block instanceof BaseBlock) {
world.copyToWorld(position, (BaseBlock) block);
}
changed = craftWorld.getHandle().setRawData(x, y, z, block.getData()) || changed;
if (changed) {
if (notifyAdjacent) {
craftWorld.getHandle().update(x, y, z, block.getId());