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Check cached bukkit player is the same as the current player online (#1732)

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* Check cached bukkit player is the same as the current player online
 - If plugins do silly things like teleport, deop (anything that requires a perm-recheck) (anything that ultimately requires a BukkitPlayer at some point) then the retention of metadata by the server (as it's stored based on a string value indescriminate of player a player relogging) means that a BukkitPlayer caching an old player object will be kept, cached and retrieved by FAWE. Adding a simple memory-based equality check when the player rejoins, and then "invaliding" (redoing) the cache if the players are not equal, fixes this.
 - Fixes #1730

* Address comments

* Add comment explaining reference equality check to code
This commit is contained in:
Jordan
2022-05-10 09:10:59 +01:00
committed by GitHub
parent ec97fca440
commit d7543884a5
2 changed files with 17 additions and 1 deletions
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8
worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java
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@ -573,6 +573,14 @@ public class WorldEditPlugin extends JavaPlugin {
}
return (BukkitPlayer) meta.get(0).value();
}
BukkitPlayer reCachePlayer(Player player) {
synchronized (player) {
BukkitPlayer wePlayer = new BukkitPlayer(this, player);
player.setMetadata("WE", new FixedMetadataValue(this, wePlayer));
return wePlayer;
}
}
//FAWE end
public Actor wrapCommandSender(CommandSender sender) {