Remove chat-based WECUI protocol. Everybody running a modern (1.2.5 or newer) WECUI should be fine.

This has a bonus of allowing us to stay far far away from that smelly PlayerChatEvent guy who's always late (or early, or both).

perworldperms.diff

@@ -0,0 +1,123 @@
+diff --git a/src/main/java/com/sk89q/wepif/DinnerPermsResolver.java b/src/main/java/com/sk89q/wepif/DinnerPermsResolver.java
+index 96256af..ab414ad 100644
+--- a/src/main/java/com/sk89q/wepif/DinnerPermsResolver.java
++++ b/src/main/java/com/sk89q/wepif/DinnerPermsResolver.java
+@@ -20,15 +20,22 @@
+ package com.sk89q.wepif;
+ 
+ import com.sk89q.util.yaml.YAMLProcessor;
++import org.bukkit.Bukkit;
+ import org.bukkit.OfflinePlayer;
+ import org.bukkit.Server;
++import org.bukkit.World;
++import org.bukkit.permissions.GlobalPermissionsContext;
+ import org.bukkit.entity.Player;
+ import org.bukkit.permissions.Permissible;
+ import org.bukkit.permissions.Permission;
+ import org.bukkit.permissions.PermissionAttachmentInfo;
++import org.bukkit.permissions.PermissionsContext;
++import org.bukkit.permissions.WorldPermissionsContext;
+ 
+ import java.util.ArrayList;
+ import java.util.List;
++import java.util.Map;
++import java.util.WeakHashMap;
+ 
+ public class DinnerPermsResolver implements PermissionsResolver {
+ 
+@@ -87,7 +94,27 @@ public class DinnerPermsResolver implements PermissionsResolver {
+     }
+ 
+     public boolean hasPermission(String worldName, OfflinePlayer player, String permission) {
+-        return hasPermission(player, permission); // no per-world ability to check permissions in dinnerperms
++        Permissible perms = getPermissible(player);
++        if (perms == null) {
++            return false;
++        }
++        switch (internalHasPermission(perms, permission, worldName)) {
++            case -1:
++                return false;
++            case 1:
++                return true;
++        }
++        int dotPos = permission.lastIndexOf(".");
++        while (dotPos > -1) {
++            switch (internalHasPermission(perms, permission.substring(0, dotPos + 1) + "*", worldName)) {
++                case -1:
++                    return false;
++                case 1:
++                    return true;
++            }
++            dotPos = permission.lastIndexOf(".", dotPos - 1);
++        }
++        return internalHasPermission(perms, "*", worldName) == 1;
+     }
+ 
+     public boolean inGroup(OfflinePlayer player, String group) {
+@@ -126,18 +153,29 @@ public class DinnerPermsResolver implements PermissionsResolver {
+         return perm;
+     }
+ 
+-    /**
+-     * Checks the permission from dinnerperms
+-     * @param perms Permissible to check for
+-     * @param permission The permission to check
+-     * @return -1 if the permission is explicitly denied, 1 if the permission is allowed,
+-     *         0 if the permission is denied by a default.
+-     */
+-    public int internalHasPermission(Permissible perms, String permission) {
+-        if (perms.isPermissionSet(permission)) {
+-            return perms.hasPermission(permission) ? 1 : -1;
++    public int internalHasPermission(Permissible perms, String name) {
++        name = name.toLowerCase();
++        if (perms.isPermissionSet(name)) {
++            return perms.hasPermission(name) ? 1 : 0;
++        }
++        Permission perm = Bukkit.getServer().getPluginManager().getPermission(name);
++        if (perm != null) {
++            return perm.getDefault().getValue(perms.isOp()) ? 1 : 0;
+         } else {
+-            Permission perm = server.getPluginManager().getPermission(permission);
++            return 0;
++        }
++    }
++
++    public int internalHasPermission(Permissible perms, String name, String contextName) {
++
++        name = name.toLowerCase();
++        PermissionsContext context = getPermissionsContext(contextName);
++        // More specific overrides less specific
++        if (perms.isPermissionSet(name, context) || perms.isPermissionSet(name, GlobalPermissionsContext.GLOBAL_CONTEXT)) {
++            return perms.hasPermission(name,  context) ? 1 : -1;
++        } else {
++            Permission perm = server.getPluginManager().getPermission(name);
++
+             if (perm != null) {
+                 return perm.getDefault().getValue(perms.isOp()) ? 1 : 0;
+             } else {
+@@ -146,6 +184,25 @@ public class DinnerPermsResolver implements PermissionsResolver {
+         }
+     }
+ 
++    private Map<String, PermissionsContext> contextLookup = new WeakHashMap<String, PermissionsContext>();
++    public PermissionsContext getPermissionsContext(String name) {
++        PermissionsContext context = contextLookup.get(name);
++        if (context == null) {
++            if (name == null || name.equalsIgnoreCase("global")) {
++                context =  GlobalPermissionsContext.GLOBAL_CONTEXT;
++            } else {
++                World world = server.getWorld(name);
++                if (world != null) {
++                    context = world.getPermissionsContext();
++                } else {
++                    context = new WorldPermissionsContext(name);
++                }
++            }
++            contextLookup.put(name, context);
++        }
++        return context;
++    }
++
+     public String getDetectionMessage() {
+         return "Using the Bukkit Permissions API.";
+     }

src/main/java/com/sk89q/worldedit/LocalConfiguration.java

@@ -78,7 +78,6 @@ public abstract class LocalConfiguration {
             };
 
     public boolean profile = false;
-    public boolean enableWECUI = true;
     public Set<Integer> disallowedBlocks = new HashSet<Integer>();
     public int defaultChangeLimit = -1;
     public int maxChangeLimit = -1;

src/main/java/com/sk89q/worldedit/LocalPlayer.java

@@ -623,7 +623,9 @@ public abstract class LocalPlayer {
 
     /**
      * Send the CUI handshake.
+     * @deprecated Not used anymore; The CUI begins the handshake
      */
+    @Deprecated
     public void dispatchCUIHandshake() {
     }
 

src/main/java/com/sk89q/worldedit/LocalSession.java

@@ -602,6 +602,22 @@ public class LocalSession {
         }
     }
 
+    public void handleCUIInitializationMessage(String text) {
+        if (hasCUISupport()) {
+            return;
+        }
+
+        String[] split = text.split("\\|");
+        if (split.length > 1 && split[0].equalsIgnoreCase("v")) { // enough fields and right message
+            setCUISupport(true);
+            try {
+                setCUIVersion(Integer.parseInt(split[1]));
+            } catch (NumberFormatException e) {
+                WorldEdit.logger.warning("Error while reading CUI init message: " + e.getMessage());
+            }
+        }
+    }
+
     /**
      * Gets the status of CUI support.
      *
@@ -617,7 +633,7 @@ public class LocalSession {
      * @param support
      */
     public void setCUISupport(boolean support) {
-        hasCUISupport = true;
+        hasCUISupport = support;
     }
 
     /**

src/main/java/com/sk89q/worldedit/bukkit/BukkitPlayer.java

@@ -133,22 +133,7 @@ public class BukkitPlayer extends LocalPlayer {
         if (params.length > 0) {
             send = send + "|" + StringUtil.joinString(params, "|");
         }
-
+        player.sendPluginMessage(plugin, WorldEditPlugin.CUI_PLUGIN_CHANNEL, send.getBytes(CUIChannelListener.UTF_8_CHARSET));
-        if (plugin.hasPluginChannelCUI(getName())) {
-            player.sendPluginMessage(plugin, WorldEditPlugin.CUI_PLUGIN_CHANNEL, send.getBytes(CUIChannelListener.UTF_8_CHARSET));
-        } else {
-            if (plugin.getLocalConfiguration().enableWECUI) {
-                player.sendRawMessage("\u00A75\u00A76\u00A74\u00A75" + send);
-            }
-        }
-    }
-
-    @Override
-    public void dispatchCUIHandshake() {
-        if (!plugin.hasPluginChannelCUI(getName()) && plugin.getLocalConfiguration().enableWECUI) {
-            player.sendRawMessage("\u00A75\u00A76\u00A74\u00A75");
-            player.sendRawMessage("\u00A74\u00A75\u00A73\u00A74");
-        }
     }
 
     public Player getPlayer() {

src/main/java/com/sk89q/worldedit/bukkit/CUIChannelListener.java

@@ -39,19 +39,11 @@ public class CUIChannelListener implements PluginMessageListener {
     @Override
     public void onPluginMessageReceived(String channel, Player player, byte[] message) {
         LocalSession session = plugin.getSession(player);
-        if (session.hasCUISupport() && plugin.hasPluginChannelCUI(player.getName())) { // Already initialized
+        if (session.hasCUISupport()) { // Already initialized
             return;
         }
 
-        String[] text = new String(message, UTF_8_CHARSET).split("\\|");
+        String text = new String(message, UTF_8_CHARSET);
-        if (text.length > 1 && text[0].equalsIgnoreCase("v")) { // enough fields and right message
+        session.handleCUIInitializationMessage(text);
-            plugin.setPluginChannelCUI(player.getName(), true);
-            session.setCUISupport(true);
-            try {
-                session.setCUIVersion(Integer.parseInt(text[1]));
-            } catch (NumberFormatException e) {
-                plugin.getLogger().warning("Error while reading CUI init message: " + e.getMessage());
-            }
-        }
     }
 }

src/main/java/com/sk89q/worldedit/bukkit/WorldEditListener.java

@@ -23,23 +23,18 @@ package com.sk89q.worldedit.bukkit;
 import com.sk89q.util.StringUtil;
 import org.bukkit.Bukkit;
 import org.bukkit.block.Block;
-import org.bukkit.entity.Player;
 import org.bukkit.event.Event.Result;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
-import org.bukkit.event.player.PlayerChatEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 import com.sk89q.worldedit.LocalPlayer;
 import com.sk89q.worldedit.LocalWorld;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.WorldVector;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 /**
  * Handles all events thrown in relation to a Player
@@ -48,7 +43,6 @@ public class WorldEditListener implements Listener {
 
     private WorldEditPlugin plugin;
     private boolean ignoreLeftClickAir = false;
-    private final static Pattern cuipattern = Pattern.compile("u00a74u00a75u00a73u00a74([^\\|]*)\\|?(.*)");
 
     /**
      * Called when a player plays an animation, such as an arm swing
@@ -65,20 +59,6 @@ public class WorldEditListener implements Listener {
         this.plugin = plugin;
     }
 
-    @EventHandler(priority = EventPriority.LOWEST)
-    public void onPlayerJoin(PlayerJoinEvent event) {
-        final Player player = event.getPlayer();
-        plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
-            @Override
-            public void run() {
-                if (player.isOnline()) {
-                    plugin.wrapPlayer(player).dispatchCUIHandshake();
-                }
-            }
-        }, 20 * 2);
-
-    }
-
     /**
      * Called when a player leaves a server
      *
@@ -87,7 +67,6 @@ public class WorldEditListener implements Listener {
     @EventHandler
     public void onPlayerQuit(PlayerQuitEvent event) {
         plugin.getWorldEdit().markExpire(plugin.wrapPlayer(event.getPlayer()));
-        plugin.setPluginChannelCUI(event.getPlayer().getName(), false);
     }
 
     /**
@@ -187,22 +166,4 @@ public class WorldEditListener implements Listener {
             }
         }
     }
-
-    @EventHandler(ignoreCancelled = true) // TODO: Remove this in a bit
-    public void onPlayerChat(PlayerChatEvent event) {
-        Matcher matcher = cuipattern.matcher(event.getMessage());
-        if (matcher.find()) {
-            String type = matcher.group(1);
-            String args = matcher.group(2);
-
-            if( type.equals("v") ) {
-                try {
-                    plugin.getSession(event.getPlayer()).setCUIVersion(Integer.parseInt(args));
-                    event.setCancelled(true);
-                } catch(NumberFormatException ignore) {
-                }
-            }
-
-        }
-    }
 }

src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java

@@ -70,11 +70,6 @@ public class WorldEditPlugin extends JavaPlugin {
      */
     private BukkitConfiguration config;
 
-    /**
-     * Stores players who are using plugin channels for the cui
-     */
-    private final Set<String> pluginChannelCui = new HashSet<String>();
-
     /**
      * Called on plugin enable.
      */
@@ -389,16 +384,4 @@ public class WorldEditPlugin extends JavaPlugin {
         session.setRegionSelector(BukkitUtil.getLocalWorld(player.getWorld()), sel);
         session.dispatchCUISelection(wrapPlayer(player));
     }
-
-    public void setPluginChannelCUI(String name, boolean value) {
-        if (value) {
-            pluginChannelCui.add(name);
-        } else {
-            pluginChannelCui.remove(name);
-        }
-    }
-
-    public boolean hasPluginChannelCUI(String name) {
-        return pluginChannelCui.contains(name);
-    }
 }

src/main/java/com/sk89q/worldedit/spout/WorldEditCUIMessageHandler.java

@@ -39,14 +39,6 @@ public class WorldEditCUIMessageHandler extends MessageHandler<WorldEditCUIMessa
             return;
         }
 
-        String[] text = message.getMessage().split("\\|");
+        localSession.handleCUIInitializationMessage(message.getMessage());
-        if (text.length > 1 && text[0].equalsIgnoreCase("v")) { // enough fields and right message
-            localSession.setCUISupport(true);
-            try {
-                localSession.setCUIVersion(Integer.parseInt(text[1]));
-            } catch (NumberFormatException e) {
-                plugin.getLogger().warning("Error while reading CUI init message: " + e.getMessage());
-            }
-        }
     }
 }

src/main/java/com/sk89q/worldedit/spout/WorldEditListener.java

@@ -64,11 +64,6 @@ public class WorldEditListener implements Listener {
         this.plugin = plugin;
     }
 
-    @EventHandler(order = Order.EARLIEST)
-    public void onPlayerJoin(PlayerJoinEvent event) {
-        plugin.wrapPlayer(event.getPlayer()).dispatchCUIHandshake();
-    }
-
     /**
      * Called when a player leaves a server
      *

src/main/java/com/sk89q/worldedit/util/PropertiesConfiguration.java

@@ -77,7 +77,6 @@ public class PropertiesConfiguration extends LocalConfiguration {
         }
 
         profile = getBool("profile", profile);
-        enableWECUI = getBool("enable-wecui-handshake", enableWECUI);
         disallowedBlocks = getIntSet("disallowed-blocks", defaultDisallowedBlocks);
         defaultChangeLimit = getInt("default-max-changed-blocks", defaultChangeLimit);
         maxChangeLimit = getInt("max-changed-blocks", maxChangeLimit);

src/main/java/com/sk89q/worldedit/util/YAMLConfiguration.java

@@ -59,7 +59,6 @@ public class YAMLConfiguration extends LocalConfiguration {
         showFirstUseVersion = false;
 
         profile = config.getBoolean("debug", profile);
-        enableWECUI = config.getBoolean("enable-wecui-handshake", enableWECUI);
         wandItem = config.getInt("wand-item", wandItem);
         defaultChangeLimit = Math.max(-1, config.getInt(
                 "limits.max-blocks-changed.default", defaultChangeLimit));

src/main/resources/config.yml

@@ -65,4 +65,3 @@ shell-save-type:
 no-double-slash: false
 no-op-permissions: false
 debug: false
-enable-wecui-handshake: true