Added gameplay.block-potions.

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

@@ -31,6 +31,7 @@
 import org.bukkit.block.Block;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
+import org.bukkit.potion.PotionEffectType;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -74,6 +75,7 @@ public class WorldConfiguration {
     public boolean simulateSponge;
     public int spongeRadius;
     public boolean disableExpDrops;
+    public Set<PotionEffectType> blockPotions;
     public boolean pumpkinScuba;
     public boolean redstoneSponges;
     public boolean noPhysicsGravel;
@@ -288,6 +290,17 @@ private void loadConfiguration() {
         disableExpDrops = getBoolean("protection.disable-xp-orb-drops", false);
         disableObsidianGenerators = getBoolean("protection.disable-obsidian-generators", false);
 
+        blockPotions = new HashSet<PotionEffectType>();
+        for (String potionName : getStringList("gameplay.block-potions", null)) {
+            PotionEffectType effect = PotionEffectType.getByName(potionName);
+
+            if (effect == null) {
+                plugin.getLogger().warning("Unknown potion effect type '" + potionName + "'");
+            } else {
+                blockPotions.add(effect);
+            }
+        }
+
         simulateSponge = getBoolean("simulation.sponge.enable", true);
         spongeRadius = Math.max(1, getInt("simulation.sponge.radius", 3)) - 1;
         redstoneSponges = getBoolean("simulation.sponge.redstone", false);

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

@@ -27,6 +27,7 @@
 import org.bukkit.ChatColor;
 import org.bukkit.GameMode;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Entity;
@@ -54,7 +55,8 @@
 import org.bukkit.event.player.PlayerRespawnEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.plugin.PluginManager;
-
+import org.bukkit.potion.Potion;
+import org.bukkit.potion.PotionEffect;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.blocks.BlockType;
 import com.sk89q.worldguard.LocalPlayer;
@@ -420,6 +422,22 @@ public void onPlayerInteract(PlayerInteractEvent event) {
                 player.sendMessage(ChatColor.RED + "Infinite stack removed.");
             }
         }
+
+        if (wcfg.blockPotions.size() > 0
+                && !plugin.hasPermission(player, "worldguard.override.potions")) {
+            ItemStack item = event.getItem();
+            if (item.getType() == Material.POTION) {
+                Potion potion = Potion.fromItemStack(item);
+                for (PotionEffect effect : potion.getEffects()) {
+                    if (wcfg.blockPotions.contains(effect.getType())) {
+                        player.sendMessage(ChatColor.RED + "Sorry, potions with "
+                                + effect.getType().getName() + " are presently disabled.");
+                        event.setUseItemInHand(Result.DENY);
+                        break;
+                    }
+                }
+            }
+        }
     }
 
     /**