ViaVersion/bungee/src/main/java/com/viaversion/viaversion/bungee/service/ProtocolDetectorService.java

94 lines
3.7 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.bungee.service;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.bungee.platform.BungeeViaConfig;
import com.viaversion.viaversion.bungee.providers.BungeeVersionProvider;
import com.viaversion.viaversion.platform.AbstractProtocolDetectorService;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.config.ServerInfo;
public final class ProtocolDetectorService extends AbstractProtocolDetectorService {
public void probeServer(final ServerInfo serverInfo) {
final String serverName = serverInfo.getName();
serverInfo.ping((serverPing, throwable) -> {
// Ensure protocol is positive, some services will return -1
if (throwable != null || serverPing == null || serverPing.getVersion() == null || serverPing.getVersion().getProtocol() <= 0) {
return;
}
final int oldProtocolVersion = serverProtocolVersion(serverName);
if (oldProtocolVersion == serverPing.getVersion().getProtocol()) {
// Same value as previously
return;
}
setProtocolVersion(serverName, serverPing.getVersion().getProtocol());
final BungeeViaConfig config = (BungeeViaConfig) Via.getConfig();
if (config.isBungeePingSave()) {
final Map<String, Integer> servers = config.getBungeeServerProtocols();
final Integer protocol = servers.get(serverName);
if (protocol != null && protocol == serverPing.getVersion().getProtocol()) {
return;
}
// Ensure we're the only ones writing to the config
synchronized (Via.getPlatform().getConfigurationProvider()) {
servers.put(serverName, serverPing.getVersion().getProtocol());
}
config.save();
}
});
}
@Override
public void probeAllServers() {
final Collection<ServerInfo> servers = ProxyServer.getInstance().getServers().values();
final Set<String> serverNames = new HashSet<>(servers.size());
for (final ServerInfo serverInfo : servers) {
probeServer(serverInfo);
serverNames.add(serverInfo.getName());
}
// Remove servers that aren't registered anymore
lock.writeLock().lock();
try {
detectedProtocolIds.keySet().retainAll(serverNames);
} finally {
lock.writeLock().unlock();
}
}
@Override
protected Map<String, Integer> configuredServers() {
return ((BungeeViaConfig) Via.getConfig()).getBungeeServerProtocols();
}
@Override
protected int lowestSupportedProtocolVersion() {
return BungeeVersionProvider.getLowestSupportedVersion();
}
}