Fix and improve protection handlers.

src/main/java/com/sk89q/worldguard/bukkit/BukkitUtil.java

@@ -42,7 +42,6 @@
 import org.bukkit.entity.Tameable;
 import org.bukkit.inventory.ItemStack;
 
-import javax.annotation.Nullable;
 import java.util.List;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -320,9 +319,9 @@ public static Target createTarget(Block block) {
      * @param material a fallback material
      * @return a target
      */
-    public static Target createTarget(@Nullable Block block, Material material) {
+    public static Target createTarget(Block block, Material material) {
         checkNotNull(material);
-        if (block != null) {
+        if (block.getType() == material) {
             return new MaterialTarget(block.getTypeId(), block.getData());
         } else {
             return new MaterialTarget(material.getId(), (short) 0);

src/main/java/com/sk89q/worldguard/bukkit/RegionQuery.java

@@ -110,23 +110,7 @@ public ApplicableRegionSet queryContains(Location location) {
      * @throws NullPointerException if there is no player for this query
      */
     public boolean testPermission(Location location, Player player) {
-        checkNotNull(location);
+        return testPermission(location, player, new StateFlag[0]);
-        checkNotNull(player);
-
-        LocalPlayer localPlayer = plugin.wrapPlayer(player);
-        World world = location.getWorld();
-        WorldConfiguration worldConfig = config.get(world);
-
-        if (!worldConfig.useRegions) {
-            return true;
-        }
-
-        if (globalManager.hasBypass(localPlayer, world)) {
-            return true;
-        } else {
-            RegionManager manager = globalManager.get(location.getWorld());
-            return manager == null || cache.queryContains(manager, location).canBuild(localPlayer);
-        }
     }
 
     /**
@@ -151,8 +135,8 @@ public boolean testPermission(Location location, Player player) {
      */
     public boolean testPermission(Location location, Player player, StateFlag... flags) {
         checkNotNull(location);
-        checkNotNull(flags);
         checkNotNull(player);
+        checkNotNull(flags);
 
         LocalPlayer localPlayer = plugin.wrapPlayer(player);
         World world = location.getWorld();
@@ -162,6 +146,10 @@ public boolean testPermission(Location location, Player player, StateFlag... fla
             return true;
         }
 
+        if (player.hasPermission("worldguard.region.bypass." + world.getName())) {
+            return true;
+        }
+
         RegionManager manager = globalManager.get(location.getWorld());
 
         if (manager != null) {

src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java

@@ -20,10 +20,14 @@
 package com.sk89q.worldguard.bukkit.cause;
 
 import com.google.common.base.Joiner;
+import com.sk89q.worldguard.bukkit.util.WGMetadata;
+import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.Projectile;
+import org.bukkit.entity.TNTPrimed;
 import org.bukkit.entity.Tameable;
 import org.bukkit.entity.Vehicle;
+import org.bukkit.metadata.Metadatable;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
@@ -43,6 +47,7 @@
  */
 public class Cause {
 
+    private static final String CAUSE_KEY = "worldguard.cause";
     private static final Cause UNKNOWN = new Cause(Collections.emptyList());
 
     private final List<Object> causes;
@@ -77,6 +82,17 @@ public Player getPlayerRootCause() {
         return null;
     }
 
+    @Nullable
+    public Entity getEntityRootCause() {
+        for (Object object : causes) {
+            if (object instanceof Entity) {
+                return (Entity) object;
+            }
+        }
+
+        return null;
+    }
+
     @Override
     public String toString() {
         return Joiner.on(" | ").join(causes);
@@ -95,12 +111,28 @@ private static void expand(List<Object> list, @Nullable Object ... element) {
                     continue;
                 }
 
-                if (o instanceof Projectile) {
+                // Add manually tracked parent causes
+                Object source = o;
+                int index = list.size();
+                while (source instanceof Metadatable) {
+                    source = WGMetadata.getIfPresent((Metadatable) source, CAUSE_KEY, Object.class);
+                    if (source != null) {
+                        list.add(index, source);
+                    }
+                }
+
+                if (o instanceof TNTPrimed) {
+                    expand(list, ((TNTPrimed) o).getSource());
+                    list.add(o);
+                } else if (o instanceof Projectile) {
                     expand(list, ((Projectile) o).getShooter());
+                    list.add(o);
                 } else if (o instanceof Vehicle) {
                     expand(list, ((Vehicle) o).getPassenger());
+                    list.add(o);
                 } else if (o instanceof Tameable) {
                     expand(list, ((Tameable) o).getOwner());
+                    list.add(o);
                 } else {
                     list.add(o);
                 }
@@ -135,4 +167,14 @@ public static Cause unknown() {
         return UNKNOWN;
     }
 
+    /**
+     * Add a parent cause to a {@code Metadatable} object.
+     *
+     * @param target the target
+     * @param parent the parent cause
+     */
+    public static void trackParentCause(Metadatable target, Object parent) {
+        WGMetadata.put(target, CAUSE_KEY, parent);
+    }
+
 }

src/main/java/com/sk89q/worldguard/bukkit/event/BulkEvent.java

@@ -0,0 +1,38 @@
+/*
+ * WorldGuard, a suite of tools for Minecraft
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldGuard 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 Foundation, either version 3 of the License, or
+ * (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 PARTICULAR PURPOSE. See the GNU Lesser 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/>.
+ */
+
+package com.sk89q.worldguard.bukkit.event;
+
+/**
+ * A bulk event contains several affected objects in a list.
+ */
+public interface BulkEvent {
+
+    /**
+     * Return whether the event is explicitly cancelled.
+     *
+     * <p>By default, bulk events will cancel itself if the number of affected
+     * objects drops to zero. This method returns the true cancellation
+     * status.</p>
+     *
+     * @return true if really cancelled
+     */
+    boolean isExplicitlyCancelled();
+
+}

src/main/java/com/sk89q/worldguard/bukkit/event/block/AbstractBlockEvent.java

@@ -19,56 +19,125 @@
 
 package com.sk89q.worldguard.bukkit.event.block;
 
+import com.google.common.base.Predicate;
 import com.sk89q.worldguard.bukkit.cause.Cause;
 import com.sk89q.worldguard.bukkit.event.AbstractDelegateEvent;
+import com.sk89q.worldguard.bukkit.event.BulkEvent;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.event.Event;
 
 import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-abstract class AbstractBlockEvent extends AbstractDelegateEvent {
+abstract class AbstractBlockEvent extends AbstractDelegateEvent implements BulkEvent {
 
-    private final Location target;
+    private final World world;
-    @Nullable
+    private final List<Block> blocks;
-    private final Block block;
     private final Material effectiveMaterial;
 
-    protected AbstractBlockEvent(@Nullable Event originalEvent, Cause cause, Block block) {
+    protected AbstractBlockEvent(@Nullable Event originalEvent, Cause cause, World world, List<Block> blocks, Material effectiveMaterial) {
         super(originalEvent, cause);
-        checkNotNull(block);
+        checkNotNull(world);
-        this.target = block.getLocation();
+        checkNotNull(blocks);
-        this.block = block;
+        checkNotNull(effectiveMaterial);
-        this.effectiveMaterial = block.getType();
+        this.world = world;
-    }
+        this.blocks = blocks;
-
-    protected AbstractBlockEvent(@Nullable Event originalEvent, Cause cause, Location target, Material effectiveMaterial) {
-        super(originalEvent, cause);
-        this.target = target;
-        this.block = null;
         this.effectiveMaterial = effectiveMaterial;
     }
 
-    /**
+    protected AbstractBlockEvent(@Nullable Event originalEvent, Cause cause, Block block) {
-     * Get the target block being affected.
+        this(originalEvent, cause, block.getWorld(), createList(checkNotNull(block)), block.getType());
-     *
+    }
-     * @return a block
+
-     */
+    protected AbstractBlockEvent(@Nullable Event originalEvent, Cause cause, Location target, Material effectiveMaterial) {
-    public Location getTarget() {
+        this(originalEvent, cause, target.getWorld(), createList(target.getBlock()), effectiveMaterial);
-        return target;
+    }
+
+    private static List<Block> createList(Block block) {
+        List<Block> blocks = new ArrayList<Block>();
+        blocks.add(block);
+        return blocks;
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return super.isCancelled() || blocks.isEmpty();
+    }
+
+    @Override
+    public boolean isExplicitlyCancelled() {
+        return super.isCancelled();
     }
 
     /**
-     * Get the block.
+     * Get the world.
      *
-     * @return the block
+     * @return the world
      */
-    @Nullable
+    public World getWorld() {
-    public Block getBlock() {
+        return world;
-        return block;
+    }
+
+    /**
+     * Get the affected blocks.
+     *
+     * @return a list of affected block
+     */
+    public List<Block> getBlocks() {
+        return blocks;
+    }
+
+    /**
+     * Filter the list of affected blocks with the given predicate. If the
+     * predicate returns {@code false}, then the block is removed.
+     *
+     * @param predicate the predicate
+     * @param cancelEventOnFalse true to cancel the event and clear the block
+     *                           list once the predicate returns {@code false}
+     * @return true if one or more blocks were filtered out
+     */
+    public boolean filterBlocks(Predicate<Location> predicate, boolean cancelEventOnFalse) {
+        boolean hasRemoval = false;
+
+        Iterator<Block> it = blocks.iterator();
+        while (it.hasNext()) {
+            if (!predicate.apply(it.next().getLocation())) {
+                hasRemoval = true;
+
+                if (cancelEventOnFalse) {
+                    getBlocks().clear();
+                    setCancelled(true);
+                    break;
+                } else {
+                    it.remove();
+                }
+            }
+        }
+
+        return hasRemoval;
+    }
+
+    /**
+     * Filter the list of affected blocks with the given predicate. If the
+     * predicate returns {@code false}, then the block is removed.
+     *
+     * <p>This method will <strong>not</strong> fail fast and
+     * cancel the event the first instance that the predicate returns
+     * {@code false}. See {@link #filterBlocks(Predicate, boolean)} to adjust
+     * this behavior.</p>
+     *
+     * @param predicate the predicate
+     * @return true if one or more blocks were filtered out
+     */
+    public boolean filterBlocks(Predicate<Location> predicate) {
+        return filterBlocks(predicate, false);
     }
 
     /**

src/main/java/com/sk89q/worldguard/bukkit/event/block/BreakBlockEvent.java

@@ -22,16 +22,22 @@
 import com.sk89q.worldguard.bukkit.cause.Cause;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 
 import javax.annotation.Nullable;
+import java.util.List;
 
 public class BreakBlockEvent extends AbstractBlockEvent {
 
     private static final HandlerList handlers = new HandlerList();
 
+    public BreakBlockEvent(@Nullable Event originalEvent, Cause cause, World world, List<Block> blocks, Material effectiveMaterial) {
+        super(originalEvent, cause, world, blocks, effectiveMaterial);
+    }
+
     public BreakBlockEvent(@Nullable Event originalEvent, Cause cause, Block block) {
         super(originalEvent, cause, block);
     }

src/main/java/com/sk89q/worldguard/bukkit/event/block/PlaceBlockEvent.java

@@ -22,16 +22,22 @@
 import com.sk89q.worldguard.bukkit.cause.Cause;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 
 import javax.annotation.Nullable;
+import java.util.List;
 
 public class PlaceBlockEvent extends AbstractBlockEvent {
 
     private static final HandlerList handlers = new HandlerList();
 
+    public PlaceBlockEvent(@Nullable Event originalEvent, Cause cause, World world, List<Block> blocks, Material effectiveMaterial) {
+        super(originalEvent, cause, world, blocks, effectiveMaterial);
+    }
+
     public PlaceBlockEvent(@Nullable Event originalEvent, Cause cause, Block block) {
         super(originalEvent, cause, block);
     }

src/main/java/com/sk89q/worldguard/bukkit/event/block/UseBlockEvent.java

@@ -22,11 +22,13 @@
 import com.sk89q.worldguard.bukkit.cause.Cause;
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 
 import javax.annotation.Nullable;
+import java.util.List;
 
 /**
  * Fired when a block is interacted with.
@@ -35,6 +37,10 @@ public class UseBlockEvent extends AbstractBlockEvent {
 
     private static final HandlerList handlers = new HandlerList();
 
+    public UseBlockEvent(@Nullable Event originalEvent, Cause cause, World world, List<Block> blocks, Material effectiveMaterial) {
+        super(originalEvent, cause, world, blocks, effectiveMaterial);
+    }
+
     public UseBlockEvent(@Nullable Event originalEvent, Cause cause, Block block) {
         super(originalEvent, cause, block);
     }

src/main/java/com/sk89q/worldguard/bukkit/listener/BlacklistListener.java

@@ -19,6 +19,7 @@
 
 package com.sk89q.worldguard.bukkit.listener;
 
+import com.google.common.base.Predicate;
 import com.sk89q.worldguard.LocalPlayer;
 import com.sk89q.worldguard.blacklist.event.BlockBreakBlacklistEvent;
 import com.sk89q.worldguard.blacklist.event.BlockDispenseBlacklistEvent;
@@ -38,8 +39,8 @@
 import com.sk89q.worldguard.bukkit.event.entity.SpawnEntityEvent;
 import com.sk89q.worldguard.bukkit.event.inventory.UseItemEvent;
 import com.sk89q.worldguard.bukkit.util.Materials;
+import org.bukkit.Location;
 import org.bukkit.Material;
-import org.bukkit.block.Block;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Item;
 import org.bukkit.entity.Player;
@@ -68,75 +69,86 @@ public BlacklistListener(WorldGuardPlugin plugin) {
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onBreakBlock(BreakBlockEvent event) {
+    public void onBreakBlock(final BreakBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        final Player player = event.getCause().getPlayerRootCause();
 
         if (player == null) {
             return;
         }
 
-        LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
+        final LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
-        Block target = event.getBlock();
+        final WorldConfiguration wcfg = getWorldConfig(player);
-        WorldConfiguration wcfg = getWorldConfig(player);
 
         // Blacklist guard
         if (wcfg.getBlacklist() == null) {
             return;
         }
 
+        event.filterBlocks(new Predicate<Location>() {
+            @Override
+            public boolean apply(Location target) {
                 if (!wcfg.getBlacklist().check(
-                new BlockBreakBlacklistEvent(localPlayer, toVector(event.getTarget()), createTarget(target, event.getEffectiveMaterial())), false, false)) {
+                        new BlockBreakBlacklistEvent(localPlayer, toVector(target), createTarget(target.getBlock(), event.getEffectiveMaterial())), false, false)) {
-            event.setCancelled(true);
+                    return false;
                 } else if (!wcfg.getBlacklist().check(
-                new ItemDestroyWithBlacklistEvent(localPlayer, toVector(event.getTarget()), createTarget(player.getItemInHand())), false, false)) {
+                        new ItemDestroyWithBlacklistEvent(localPlayer, toVector(target), createTarget(player.getItemInHand())), false, false)) {
-            event.setCancelled(true);
+                    return false;
                 }
+
+                return true;
+            }
+        });
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onPlaceBlock(PlaceBlockEvent event) {
+    public void onPlaceBlock(final PlaceBlockEvent event) {
         Player player = event.getCause().getPlayerRootCause();
 
         if (player == null) {
             return;
         }
 
-        LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
+        final LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
-        Block target = event.getBlock();
+        final WorldConfiguration wcfg = getWorldConfig(player);
-        WorldConfiguration wcfg = getWorldConfig(player);
 
         // Blacklist guard
         if (wcfg.getBlacklist() == null) {
             return;
         }
 
-        if (!wcfg.getBlacklist().check(new BlockPlaceBlacklistEvent(
+        event.filterBlocks(new Predicate<Location>() {
-                localPlayer, toVector(event.getTarget()), createTarget(target, event.getEffectiveMaterial())), false, false)) {
+            @Override
-            event.setCancelled(true);
+            public boolean apply(Location target) {
+                return wcfg.getBlacklist().check(new BlockPlaceBlacklistEvent(
+                        localPlayer, toVector(target), createTarget(target.getBlock(), event.getEffectiveMaterial())), false, false);
+
             }
+        });
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onUseBlock(UseBlockEvent event) {
+    public void onUseBlock(final UseBlockEvent event) {
         Player player = event.getCause().getPlayerRootCause();
 
         if (player == null) {
             return;
         }
 
-        LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
+        final LocalPlayer localPlayer = getPlugin().wrapPlayer(player);
-        Block target = event.getBlock();
+        final WorldConfiguration wcfg = getWorldConfig(player);
-        WorldConfiguration wcfg = getWorldConfig(player);
 
         // Blacklist guard
         if (wcfg.getBlacklist() == null) {
             return;
         }
 
-        if (!wcfg.getBlacklist().check(new BlockInteractBlacklistEvent(
+        event.filterBlocks(new Predicate<Location>() {
-                localPlayer, toVector(event.getTarget()), createTarget(target, event.getEffectiveMaterial())), false, false)) {
+            @Override
-            event.setCancelled(true);
+            public boolean apply(Location target) {
+                return wcfg.getBlacklist().check(new BlockInteractBlacklistEvent(
+                        localPlayer, toVector(target), createTarget(target.getBlock(), event.getEffectiveMaterial())), false, false);
             }
+        });
     }
 
     @EventHandler(ignoreCancelled = true)

src/main/java/com/sk89q/worldguard/bukkit/listener/ChestProtectionListener.java

@@ -19,6 +19,7 @@
 
 package com.sk89q.worldguard.bukkit.listener;
 
+import com.google.common.base.Predicate;
 import com.sk89q.worldedit.blocks.BlockID;
 import com.sk89q.worldguard.bukkit.WorldConfiguration;
 import com.sk89q.worldguard.bukkit.WorldGuardPlugin;
@@ -46,31 +47,36 @@ public ChestProtectionListener(WorldGuardPlugin plugin) {
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onPlaceBlock(PlaceBlockEvent event) {
+    public void onPlaceBlock(final PlaceBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        final Player player = event.getCause().getPlayerRootCause();
-        Location target = event.getTarget();
 
         if (player != null) {
-            WorldConfiguration wcfg = getWorldConfig(player);
+            final WorldConfiguration wcfg = getWorldConfig(player);
 
             // Early guard
             if (!wcfg.signChestProtection) {
                 return;
             }
 
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     if (wcfg.getChestProtection().isChest(event.getEffectiveMaterial().getId()) && wcfg.isChestProtected(target.getBlock(), player)) {
                         player.sendMessage(ChatColor.DARK_RED + "This spot is for a chest that you don't have permission for.");
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            }, true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onBreakBlock(BreakBlockEvent event) {
+    public void onBreakBlock(final BreakBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        final Player player = event.getCause().getPlayerRootCause();
-        Location target = event.getTarget();
 
-        WorldConfiguration wcfg = getWorldConfig(target.getWorld());
+        final WorldConfiguration wcfg = getWorldConfig(event.getWorld());
 
         // Early guard
         if (!wcfg.signChestProtection) {
@@ -78,24 +84,33 @@ public void onBreakBlock(BreakBlockEvent event) {
         }
 
         if (player != null) {
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     if (wcfg.isChestProtected(target.getBlock(), player)) {
                         player.sendMessage(ChatColor.DARK_RED + "This chest is protected.");
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            }, true);
         } else {
-            if (wcfg.isChestProtected(target.getBlock())) {
+            event.filterBlocks(new Predicate<Location>() {
-                // No player? Deny anyway
+                @Override
-                event.setCancelled(true);
+                public boolean apply(Location target) {
+                    return !wcfg.isChestProtected(target.getBlock());
+
                 }
+            });
         }
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onUseBlock(UseBlockEvent event) {
+    public void onUseBlock(final UseBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        final Player player = event.getCause().getPlayerRootCause();
-        Location target = event.getTarget();
 
-        WorldConfiguration wcfg = getWorldConfig(target.getWorld());
+        final WorldConfiguration wcfg = getWorldConfig(event.getWorld());
 
         // Early guard
         if (!wcfg.signChestProtection) {
@@ -103,15 +118,25 @@ public void onUseBlock(UseBlockEvent event) {
         }
 
         if (player != null) {
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     if (wcfg.isChestProtected(target.getBlock(), player)) {
                         player.sendMessage(ChatColor.DARK_RED + "This chest is protected.");
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            }, true);
         } else {
-            if (wcfg.isChestProtected(target.getBlock())) {
+            event.filterBlocks(new Predicate<Location>() {
-                // No player? Deny anyway
+                @Override
-                event.setCancelled(true);
+                public boolean apply(Location target) {
+                    return !wcfg.isChestProtected(target.getBlock());
+
                 }
+            });
         }
     }
 

src/main/java/com/sk89q/worldguard/bukkit/listener/DebuggingListener.java

@@ -28,8 +28,13 @@
 import com.sk89q.worldguard.bukkit.event.entity.UseEntityEvent;
 import com.sk89q.worldguard.bukkit.event.inventory.UseItemEvent;
 import org.bukkit.Location;
+import org.bukkit.block.Block;
+import org.bukkit.event.Event;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
 
+import javax.annotation.Nullable;
+import java.util.List;
 import java.util.logging.Logger;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -50,22 +55,25 @@ public DebuggingListener(WorldGuardPlugin plugin, Logger logger) {
         this.logger = logger;
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onPlaceBlock(PlaceBlockEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("PLACE");
         builder.append(" ");
         builder.append("").append(event.getEffectiveMaterial());
         builder.append(" ");
-        builder.append("@").append(toBlockString(event.getTarget()));
+        builder.append("@").append(toBlockString(event.getBlocks()));
         builder.append(" ");
         builder.append("[").append(event.getCause()).append("]");
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onBreakBlock(BreakBlockEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("DIG");
@@ -74,13 +82,16 @@ public void onBreakBlock(BreakBlockEvent event) {
         builder.append(" ");
         builder.append("[").append(event.getCause()).append("]");
         builder.append(" ");
-        builder.append("@").append(toBlockString(event.getTarget()));
+        builder.append("@").append(toBlockString(event.getBlocks()));
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onUseBlock(UseBlockEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("INTERACT");
@@ -89,13 +100,16 @@ public void onUseBlock(UseBlockEvent event) {
         builder.append(" ");
         builder.append("[").append(event.getCause()).append("]");
         builder.append(" ");
-        builder.append("@").append(toBlockString(event.getTarget()));
+        builder.append("@").append(toBlockString(event.getBlocks()));
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onSpawnEntity(SpawnEntityEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("SPAWN");
@@ -106,11 +120,14 @@ public void onSpawnEntity(SpawnEntityEvent event) {
         builder.append(" ");
         builder.append("@").append(toBlockString(event.getTarget()));
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onDestroyEntity(DestroyEntityEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("DESTROY");
@@ -121,11 +138,14 @@ public void onDestroyEntity(DestroyEntityEvent event) {
         builder.append(" ");
         builder.append("@").append(toBlockString(event.getTarget()));
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onUseEntity(UseEntityEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("INTERACT");
@@ -136,11 +156,14 @@ public void onUseEntity(UseEntityEvent event) {
         builder.append(" ");
         builder.append("@").append(toBlockString(event.getTarget()));
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR)
     public void onUseItem(UseItemEvent event) {
         StringBuilder builder = new StringBuilder();
         builder.append("USE");
@@ -151,7 +174,10 @@ public void onUseItem(UseItemEvent event) {
         builder.append(" ");
         builder.append("@").append(event.getWorld().getName());
         builder.append(" ");
-        builder.append(":").append(event.getOriginalEvent().getEventName());
+        builder.append(":").append(getEventName(event.getOriginalEvent()));
+        if (event.isCancelled()) {
+            builder.append(" [CANCELLED]");
+        }
         logger.info(builder.toString());
     }
     
@@ -159,4 +185,21 @@ private static String toBlockString(Location location) {
         return location.getBlockX() + "," + location.getBlockY() + "," + location.getBlockZ();
     }
 
+    private static String toBlockString(List<Block> blocks) {
+        StringBuilder builder = new StringBuilder();
+        boolean first = true;
+        for (Block block : blocks) {
+            if (!first) {
+                builder.append("|");
+            }
+            builder.append(block.getX()).append(",").append(block.getY()).append(",").append(block.getZ());
+            first = false;
+        }
+        return builder.toString();
+    }
+
+    private String getEventName(@Nullable Event event) {
+        return event != null ? event.getEventName() : "?";
+    }
+
 }

src/main/java/com/sk89q/worldguard/bukkit/listener/EventAbstractionListener.java

@@ -31,7 +31,6 @@
 import com.sk89q.worldguard.bukkit.util.Blocks;
 import com.sk89q.worldguard.bukkit.util.Events;
 import com.sk89q.worldguard.bukkit.util.Materials;
-import com.sk89q.worldguard.bukkit.util.WGMetadata;
 import org.bukkit.DyeColor;
 import org.bukkit.Material;
 import org.bukkit.World;
@@ -67,6 +66,7 @@
 import org.bukkit.event.entity.EntityDamageByBlockEvent;
 import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityExplodeEvent;
 import org.bukkit.event.entity.EntityTameEvent;
 import org.bukkit.event.entity.EntityUnleashEvent;
 import org.bukkit.event.entity.PotionSplashEvent;
@@ -101,7 +101,6 @@ public class EventAbstractionListener implements Listener {
      * Currently disabled as it creates a lot of new events.
      */
     public static final boolean ABSTRACT_FROM_TO_EVENTS = false;
-    private static final String FALLING_SOURCE_KEY = "worldguard.fallingSource";
 
     private final WorldGuardPlugin plugin;
 
@@ -155,7 +154,7 @@ public void onEntityChangeBlock(EntityChangeBlockEvent event) {
             if (event.getTo() == Material.AIR) {
                 // Track the source so later we can create a proper chain of causes
                 if (entity instanceof FallingBlock) {
-                    WGMetadata.put(entity, FALLING_SOURCE_KEY, block);
+                    Cause.trackParentCause(entity, block);
 
                     // Switch around the event
                     Events.fireToCancel(event, new SpawnEntityEvent(event, create(block), entity));
@@ -163,23 +162,21 @@ public void onEntityChangeBlock(EntityChangeBlockEvent event) {
                     Events.fireToCancel(event, new BreakBlockEvent(event, create(entity), event.getBlock()));
                 }
             } else {
-                Cause cause;
+                Cause cause = create(entity);
-
-                // Return the source for falling blocks
-                if (entity instanceof FallingBlock) {
-                    Block source = WGMetadata.getIfPresent(entity, FALLING_SOURCE_KEY, Block.class);
-                    cause = create(source, entity);
-                } else {
-                    cause = create(entity);
-                }
 
                 Events.fireToCancel(event, new PlaceBlockEvent(event, cause, event.getBlock().getLocation(), to));
             }
         }
     }
 
+    @EventHandler
+    public void onEntityExplode(EntityExplodeEvent event) {
+        Entity entity = event.getEntity();
+
+        Events.fireBulkEventToCancel(event, new BreakBlockEvent(event, create(entity), event.getLocation().getWorld(), event.blockList(), Material.AIR));
+    }
+
     // TODO: Handle pistons
-    // TODO: Handle EntityExplodeEvent
 
     //-------------------------------------------------------------------------
     // Block external interaction

src/main/java/com/sk89q/worldguard/bukkit/listener/RegionProtectionListener.java

@@ -19,8 +19,12 @@
 
 package com.sk89q.worldguard.bukkit.listener;
 
+import com.google.common.base.Predicate;
+import com.sk89q.worldguard.bukkit.ConfigurationManager;
 import com.sk89q.worldguard.bukkit.RegionQuery;
+import com.sk89q.worldguard.bukkit.WorldConfiguration;
 import com.sk89q.worldguard.bukkit.WorldGuardPlugin;
+import com.sk89q.worldguard.bukkit.cause.Cause;
 import com.sk89q.worldguard.bukkit.event.block.BreakBlockEvent;
 import com.sk89q.worldguard.bukkit.event.block.PlaceBlockEvent;
 import com.sk89q.worldguard.bukkit.event.block.UseBlockEvent;
@@ -30,14 +34,20 @@
 import com.sk89q.worldguard.bukkit.util.Entities;
 import com.sk89q.worldguard.bukkit.util.Materials;
 import com.sk89q.worldguard.protection.flags.DefaultFlag;
+import com.sk89q.worldguard.protection.flags.StateFlag;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Creeper;
+import org.bukkit.entity.EnderDragon;
+import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 
+import javax.annotation.Nullable;
+
 /**
  * Handle events that need to be processed by region protection.
  */
@@ -52,18 +62,58 @@ public RegionProtectionListener(WorldGuardPlugin plugin) {
         super(plugin);
     }
 
+    /**
+     * Tell a sender that s/he cannot do something 'here'.
+     *
+     * @param sender the sender
+     * @param subject the subject that the sender was blocked from touching
+     */
     private void tellErrorMessage(CommandSender sender, Object subject) {
         sender.sendMessage(ChatColor.DARK_RED + "Sorry, but you are not allowed to do that here.");
     }
 
-    @EventHandler(ignoreCancelled = true)
+    /**
-    public void onPlaceBlock(PlaceBlockEvent event) {
+     * Return whether the given cause is whitelist (should be ignored).
-        Player player = event.getCause().getPlayerRootCause();
+     *
-        Location target = event.getTarget();
+     * @param cause the cause
-        Material type = event.getEffectiveMaterial();
+     * @return true if whitelisted
+     */
+    private boolean isWhitelisted(Cause cause) {
+        return false;
+    }
 
-        if (player != null) {
+    /**
-            RegionQuery query = getPlugin().getRegionContainer().createQuery();
+     * Create a new predicate to test a state flag for each location.
+     *
+     * @param query the query
+     * @param flag the flag
+     * @return a predicate
+     */
+    private Predicate<Location> createStateFlagPredicate(final RegionQuery query, final StateFlag flag) {
+        return new Predicate<Location>() {
+            @Override
+            public boolean apply(@Nullable Location location) {
+                return query.testState(location, null, flag);
+            }
+        };
+    }
+
+    @EventHandler(ignoreCancelled = true)
+    public void onPlaceBlock(final PlaceBlockEvent event) {
+        if (isWhitelisted(event.getCause())) {
+            return; // Whitelisted cause
+        }
+
+        final Material type = event.getEffectiveMaterial();
+
+        final Player player;
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
+            final RegionQuery query = getPlugin().getRegionContainer().createQuery();
+
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     boolean canPlace;
 
                     // Flint and steel, fire charge
@@ -76,35 +126,88 @@ public void onPlaceBlock(PlaceBlockEvent event) {
 
                     if (!canPlace) {
                         tellErrorMessage(player, target);
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            });
+        } else {
+            event.setCancelled(true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onBreakBlock(BreakBlockEvent event) {
+    public void onBreakBlock(final BreakBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        if (isWhitelisted(event.getCause())) {
-        Location target = event.getTarget();
+            return; // Whitelisted cause
+        }
 
-        if (player != null) {
+        final RegionQuery query = getPlugin().getRegionContainer().createQuery();
-            RegionQuery query = getPlugin().getRegionContainer().createQuery();
+        ConfigurationManager globalConfig = getPlugin().getGlobalStateManager();
+        WorldConfiguration config = globalConfig.get(event.getWorld());
+
+        final Player player;
+        final Entity entity;
+
+        // ====================================================================
+        // Player caused
+        // ====================================================================
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     boolean canBreak = query.testPermission(target, player);
 
                     if (!canBreak) {
                         tellErrorMessage(player, target);
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            });
+
+        // ====================================================================
+        // Entity caused
+        // ====================================================================
+
+        } else if ((entity = event.getCause().getEntityRootCause()) != null) {
+            // Creeper
+            if (entity instanceof Creeper) {
+                event.filterBlocks(createStateFlagPredicate(query, DefaultFlag.CREEPER_EXPLOSION), config.explosionFlagCancellation);
+
+            // Enderdragon
+            } else if (entity instanceof EnderDragon) {
+                event.filterBlocks(createStateFlagPredicate(query, DefaultFlag.ENDERDRAGON_BLOCK_DAMAGE), config.explosionFlagCancellation);
+
+            // TNT + explosive TNT carts
+            } else if (Entities.isTNTBased(entity)) {
+                event.filterBlocks(createStateFlagPredicate(query, DefaultFlag.TNT), config.explosionFlagCancellation);
+
+            }
+        } else {
+            event.setCancelled(true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
-    public void onUseBlock(UseBlockEvent event) {
+    public void onUseBlock(final UseBlockEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        if (isWhitelisted(event.getCause())) {
-        Location target = event.getTarget();
+            return; // Whitelisted cause
-        Material type = event.getEffectiveMaterial();
+        }
 
-        if (player != null) {
+        final Material type = event.getEffectiveMaterial();
-            RegionQuery query = getPlugin().getRegionContainer().createQuery();
+
+        final Player player;
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
+            final RegionQuery query = getPlugin().getRegionContainer().createQuery();
+
+            event.filterBlocks(new Predicate<Location>() {
+                @Override
+                public boolean apply(Location target) {
                     boolean canUse;
 
                     // Inventory blocks (CHEST_ACCESS)
@@ -126,18 +229,29 @@ public void onUseBlock(UseBlockEvent event) {
 
                     if (!canUse) {
                         tellErrorMessage(player, target);
-                event.setCancelled(true);
+                        return false;
                     }
+
+                    return true;
+                }
+            });
+        } else {
+            event.setCancelled(true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
     public void onSpawnEntity(SpawnEntityEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        if (isWhitelisted(event.getCause())) {
+            return; // Whitelisted cause
+        }
+
         Location target = event.getTarget();
         EntityType type = event.getEffectiveType();
 
-        if (player != null) {
+        Player player;
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
             RegionQuery query = getPlugin().getRegionContainer().createQuery();
             boolean canSpawn;
 
@@ -151,16 +265,23 @@ public void onSpawnEntity(SpawnEntityEvent event) {
                 tellErrorMessage(player, target);
                 event.setCancelled(true);
             }
+        } else {
+            event.setCancelled(true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
     public void onDestroyEntity(DestroyEntityEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        if (isWhitelisted(event.getCause())) {
+            return; // Whitelisted cause
+        }
+
         Location target = event.getTarget();
         EntityType type = event.getEntity().getType();
 
-        if (player != null) {
+        Player player;
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
             RegionQuery query = getPlugin().getRegionContainer().createQuery();
             boolean canDestroy;
 
@@ -174,15 +295,22 @@ public void onDestroyEntity(DestroyEntityEvent event) {
                 tellErrorMessage(player, target);
                 event.setCancelled(true);
             }
+        } else {
+            event.setCancelled(true);
         }
     }
 
     @EventHandler(ignoreCancelled = true)
     public void onUseEntity(UseEntityEvent event) {
-        Player player = event.getCause().getPlayerRootCause();
+        if (isWhitelisted(event.getCause())) {
+            return; // Whitelisted cause
+        }
+
         Location target = event.getTarget();
 
-        if (player != null) {
+        Player player;
+
+        if ((player = event.getCause().getPlayerRootCause()) != null) {
             RegionQuery query = getPlugin().getRegionContainer().createQuery();
             boolean canUse = query.testPermission(target, player, DefaultFlag.USE);
 
@@ -190,6 +318,8 @@ public void onUseEntity(UseEntityEvent event) {
                 tellErrorMessage(player, target);
                 event.setCancelled(true);
             }
+        } else {
+            event.setCancelled(true);
         }
     }
 

src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardEntityListener.java

@@ -569,35 +569,11 @@ public void onEntityExplode(EntityExplodeEvent event) {
                 event.blockList().clear();
                 return;
             }
-
-            if (wcfg.useRegions) {
-                RegionManager mgr = plugin.getGlobalRegionManager().get(world);
-
-                for (Block block : event.blockList()) {
-                    if (!plugin.getRegionContainer().createQuery().queryContains(block.getLocation()).allows(DefaultFlag.CREEPER_EXPLOSION)) {
-                        event.blockList().clear();
-                        if (wcfg.explosionFlagCancellation) event.setCancelled(true);
-                        return;
-                    }
-                }
-            }
         } else if (ent instanceof EnderDragon) {
             if (wcfg.blockEnderDragonBlockDamage) {
                 event.blockList().clear();
                 return;
             }
-
-            if (wcfg.useRegions) {
-                RegionManager mgr = plugin.getGlobalRegionManager().get(world);
-
-                for (Block block : event.blockList()) {
-                    if (!plugin.getRegionContainer().createQuery().queryContains(block.getLocation()).allows(DefaultFlag.ENDERDRAGON_BLOCK_DAMAGE)) {
-                        event.blockList().clear();
-                        if (wcfg.explosionFlagCancellation) event.setCancelled(true);
-                        return;
-                    }
-                }
-            }
         } else if (ent instanceof TNTPrimed || ent instanceof ExplosiveMinecart) {
             if (wcfg.blockTNTExplosions) {
                 event.setCancelled(true);
@@ -607,18 +583,6 @@ public void onEntityExplode(EntityExplodeEvent event) {
                 event.blockList().clear();
                 return;
             }
-
-            if (wcfg.useRegions) {
-                RegionManager mgr = plugin.getGlobalRegionManager().get(world);
-
-                for (Block block : event.blockList()) {
-                    if (!plugin.getRegionContainer().createQuery().queryContains(block.getLocation()).allows(DefaultFlag.TNT)) {
-                        event.blockList().clear();
-                        if (wcfg.explosionFlagCancellation) event.setCancelled(true);
-                        return;
-                    }
-                }
-            }
         } else if (ent instanceof Fireball) {
             if (ent instanceof WitherSkull) {
                 if (wcfg.blockWitherSkullExplosions) {

src/main/java/com/sk89q/worldguard/bukkit/util/Entities.java

@@ -22,7 +22,9 @@
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Projectile;
+import org.bukkit.entity.TNTPrimed;
 import org.bukkit.entity.Tameable;
+import org.bukkit.entity.minecart.ExplosiveMinecart;
 import org.bukkit.projectiles.ProjectileSource;
 
 import javax.annotation.Nullable;
@@ -45,11 +47,11 @@ public static boolean isTamed(@Nullable Entity entity) {
     /**
      * Return if the given entity type is TNT-based.
      *
-     * @param type the type
+     * @param entity the entity
      * @return true if TNT based
      */
-    public static boolean isTNTBased(EntityType type) {
+    public static boolean isTNTBased(Entity entity) {
-        return type == EntityType.PRIMED_TNT || type == EntityType.MINECART_TNT;
+        return entity instanceof TNTPrimed || entity instanceof ExplosiveMinecart;
     }
 
     /**

src/main/java/com/sk89q/worldguard/bukkit/util/Events.java

@@ -19,6 +19,7 @@
 
 package com.sk89q.worldguard.bukkit.util;
 
+import com.sk89q.worldguard.bukkit.event.BulkEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.Event;
@@ -83,4 +84,23 @@ public static <T extends Event & Cancellable> boolean fireItemEventToCancel(Play
         return false;
     }
 
+    /**
+     * Fire the {@code eventToFire} and cancel the original if the fired event
+     * is <strong>explicitly</strong> cancelled.
+     *
+     * @param original the original event to potentially cancel
+     * @param eventToFire the event to fire to consider cancelling the original event
+     * @param <T> an event that can be fired and is cancellable
+     * @return true if the event was fired and it caused the original event to be cancelled
+     */
+    public static <T extends Event & Cancellable & BulkEvent> boolean fireBulkEventToCancel(Cancellable original, T eventToFire) {
+        Bukkit.getServer().getPluginManager().callEvent(eventToFire);
+        if (eventToFire.isExplicitlyCancelled()) {
+            original.setCancelled(true);
+            return true;
+        }
+
+        return false;
+    }
+
 }