ViaVersion/api/src/main/java/com/viaversion/viaversion/api/connection/ConnectionManager.java

104 lines
4.2 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.connection;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Handles injected UserConnections
*/
public interface ConnectionManager {
/**
* Returns if Via injected into this player connection.
*
* @param playerId player uuid
* @return true if the player is handled by Via
*/
boolean isClientConnected(UUID playerId);
/**
* Frontend connections will have the UUID stored. Override this if your platform isn't always frontend.
* UUIDs can't be duplicate between frontend connections.
*
* @return true if the user is a frontend connection
*/
default boolean isFrontEnd(UserConnection connection) {
return !connection.isClientSide();
}
/**
* Returns the frontend UserConnection from the player connected to this proxy server
* Returns null when there isn't a server or connection was not found
* When ViaVersion is reloaded, this method may not return some players.
* May not return ProtocolSupport players.
* <p>
* Note that connections are removed as soon as their channel is closed,
* so avoid using this method during player quits for example.
*
* @return frontend UserConnection of the player connected to this proxy server
*/
@Nullable UserConnection getConnectedClient(UUID clientIdentifier);
/**
* Returns the UUID from the frontend connection to this proxy server
* Returns null when there isn't a server or this connection isn't frontend, or it doesn't have an id
* When ViaVersion is reloaded, this method may not return some players.
* May not return ProtocolSupport players.
* <p>
* Note that connections are removed as soon as their channel is closed,
* so avoid using this method during player quits for example.
*
* @return UUID of the frontend connection to this proxy server
*/
@Nullable UUID getConnectedClientId(UserConnection connection);
/**
* Returns all UserConnections which are registered
* May contain duplicated UUIDs on multiple ProtocolInfo.
* May contain frontend, backend and/or client-sided connections.
* When ViaVersion is reloaded, this method may not return some players.
* May not contain ProtocolSupport players.
*
* @return connected UserConnections
*/
Set<UserConnection> getConnections();
/**
* Returns a map containing the UUIDs and frontend UserConnections from players connected to this proxy server
* Returns empty list when there isn't a server
* When ViaVersion is reloaded, this method may not return some players.
* May not contain ProtocolSupport players.
*
* @return map containing the UUIDs and frontend UserConnections from players connected to this proxy server
*/
Map<UUID, UserConnection> getConnectedClients();
void onLoginSuccess(UserConnection connection);
void onDisconnect(UserConnection connection);
}