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Properly disallow async Player#chat (#8123)
Clarify asynchronous status of AsyncChatEvent
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@ -512,6 +512,16 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
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+
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+/**
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+ * An event fired when a {@link Player} sends a chat message to the server.
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+ * <p>
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+ * This event will sometimes fire synchronously, depending on how it was
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+ * triggered.
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+ * <p>
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+ * If a player is the direct cause of this event by an incoming packet, this
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+ * event will be asynchronous. If a plugin triggers this event by compelling a
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+ * player to chat, this event will be synchronous.
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+ * <p>
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+ * Care should be taken to check {@link #isAsynchronous()} and treat the event
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+ * appropriately.
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+ */
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+public final class AsyncChatEvent extends AbstractChatEvent {
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+ private static final HandlerList HANDLERS = new HandlerList();
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@ -2947,6 +2947,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
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- } else {
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+ // Paper start
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+ } else if (true) {
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+ if (!async && !org.bukkit.Bukkit.isPrimaryThread()) {
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+ org.spigotmc.AsyncCatcher.catchOp("Asynchronous player chat is not allowed here");
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+ }
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+ final ChatProcessor cp = new ChatProcessor(this.server, this.player, original, async);
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+ cp.process();
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+ // Paper end
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