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Potential Partial Forge Fix

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This commit is contained in:
Olof Larsson 2016-08-19 10:07:12 +02:00
parent 21e5fa877c
commit 76e7702d2f
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GPG Key ID: BBEF14F97DA52474
1 changed files with 36 additions and 31 deletions
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67
src/com/massivecraft/massivecore/engine/EngineMassiveCoreDatabase.java
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@ -11,7 +11,6 @@ import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
import org.bukkit.event.player.AsyncPlayerPreLoginEvent.Result;
import org.bukkit.event.player.PlayerLoginEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import com.massivecraft.massivecore.Engine;
@ -41,43 +40,43 @@ public class EngineMassiveCoreDatabase extends Engine
public static Map<String, PlayerLoginEvent> idToPlayerLoginEvent = new MassiveMap<String, PlayerLoginEvent>();
// This method sets the sender reference to what you decide.
// Immediately set the sender reference and cached PlayerLoginEvent.
public static void setSenderReferences(CommandSender sender, CommandSender reference, PlayerLoginEvent event)
{
// Check Sender
if (MUtil.isntSender(sender)) return;
// Get and Check Id
String id = IdUtil.getId(sender);
if (id != null)
if (id == null) return;
// Avoid Race Condition
// Explanation: Deferred removal could potentially happen after a new join.
if (reference == null && sender instanceof Player && ((Player)sender).isOnline()) return;
// Set References
SenderColl.setSenderReferences(id, reference);
// Set Event
if (event == null)
{
SenderColl.setSenderReferences(id, reference);
if (event == null)
{
idToPlayerLoginEvent.remove(id);
}
else
{
idToPlayerLoginEvent.put(id, event);
}
idToPlayerLoginEvent.remove(id);
}
else
{
idToPlayerLoginEvent.put(id, event);
}
}
// This method sets the sender reference based on it's online state.
public static void setSenderReferences(Player player, PlayerLoginEvent event)
{
Player reference = player;
if ( ! player.isOnline()) reference = null;
setSenderReferences(player, reference, event);
}
// Same as above but next tick.
public static void setSenderReferencesSoon(final Player player, final PlayerLoginEvent event)
public static void setSenderReferencesSoon(final CommandSender sender, final CommandSender reference, final PlayerLoginEvent event)
{
Bukkit.getScheduler().scheduleSyncDelayedTask(MassiveCore.get(), new Runnable()
{
@Override
public void run()
{
setSenderReferences(player, event);
setSenderReferences(sender, reference, event);
}
});
}
@ -85,14 +84,20 @@ public class EngineMassiveCoreDatabase extends Engine
@EventHandler(priority = EventPriority.LOWEST)
public void setSenderReferencesLoginLowest(PlayerLoginEvent event)
{
final Player player = event.getPlayer();
// We set the reference at LOWEST so that it's present during this PlayerLoginEvent event.
setSenderReferences(player, player, event);
// And the next tick we update the reference based on it's online state.
// Not all players succeed in logging in. They may for example be banned.
setSenderReferencesSoon(player, null);
setSenderReferences(event.getPlayer(), event.getPlayer(), event);
}
@EventHandler(priority = EventPriority.MONITOR)
public void setSenderReferencesLoginMonitor(PlayerLoginEvent event)
{
// Not all logins are successful.
// If the login fails we remove the reference next tick.
// This way we have the reference available through all of the MONITOR phase.
// NOTE: We previously looked at player.isOnline() to determine login success.
// NOTE: This was however not feasible due to Forge reporting successfully logged in players as offline for a random amount of ticks.
if (event.getResult() == PlayerLoginEvent.Result.ALLOWED) return;
setSenderReferencesSoon(event.getPlayer(), null, null);
}
@EventHandler(priority = EventPriority.MONITOR)
@ -100,7 +105,7 @@ public class EngineMassiveCoreDatabase extends Engine
{
// PlayerQuitEvents are /probably/ trustworthy.
// We check ourselves the next tick just to be on the safe side.
setSenderReferencesSoon(event.getPlayer(), null);
setSenderReferencesSoon(event.getPlayer(), null, null);
}
@EventHandler(priority = EventPriority.MONITOR)
@ -185,7 +190,7 @@ public class EngineMassiveCoreDatabase extends Engine
// long before = System.nanoTime();
// If the login was allowed ...
if (event.getLoginResult() != Result.ALLOWED) return;
if (event.getLoginResult() != AsyncPlayerPreLoginEvent.Result.ALLOWED) return;
// ... get player id ...
final String playerId = event.getUniqueId().toString();