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Fix setting offline UUID with newer BungeeCord

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Fixes #1189
Fixes #1193
This commit is contained in:
games647
2024-04-30 10:11:48 +02:00
parent a65a5f3020
commit 896e250fa2
1 changed files with 31 additions and 7 deletions
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38
bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/ConnectListener.java
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@ -71,25 +71,43 @@ public class ConnectListener implements Listener {
private static final String UUID_FIELD_NAME = "uniqueId";
protected static final MethodHandle UNIQUE_ID_SETTER;
private static final String REWRITE_ID_NAME = "rewriteId";
protected static final MethodHandle REWRITE_ID_SETTER;
static {
MethodHandle setHandle = null;
MethodHandle uniqueIdHandle = null;
MethodHandle rewriterHandle = null;
try {
Lookup lookup = MethodHandles.lookup();
// test for implementation class availability
Class.forName("net.md_5.bungee.connection.InitialHandler");
Field uuidField = InitialHandler.class.getDeclaredField(UUID_FIELD_NAME);
uuidField.setAccessible(true);
setHandle = lookup.unreflectSetter(uuidField);
uniqueIdHandle = getHandlerSetter(lookup, UUID_FIELD_NAME);
try {
rewriterHandle = getHandlerSetter(lookup, REWRITE_ID_NAME);
} catch (NoSuchFieldException noSuchFieldEx) {
Logger logger = LoggerFactory.getLogger(ConnectListener.class);
logger.error(
"Rewrite field not found. Setting only legacy BungeeCord field"
);
}
} catch (ReflectiveOperationException reflectiveOperationException) {
Logger logger = LoggerFactory.getLogger(ConnectListener.class);
logger.error(
"Cannot find Bungee initial handler; Disabling premium UUID and skin won't work.",
"Cannot find Bungee UUID field implementation; Disabling premium UUID and skin won't work.",
reflectiveOperationException
);
}
UNIQUE_ID_SETTER = setHandle;
UNIQUE_ID_SETTER = uniqueIdHandle;
REWRITE_ID_SETTER = rewriterHandle;
}
private static MethodHandle getHandlerSetter(Lookup lookup, String fieldName)
throws NoSuchFieldException, IllegalAccessException {
Field uuidField = InitialHandler.class.getDeclaredField(fieldName);
uuidField.setAccessible(true);
return lookup.unreflectSetter(uuidField);
}
private final FastLoginBungee plugin;
@ -179,6 +197,12 @@ public class ConnectListener implements Listener {
// So we have to do it with reflection
UNIQUE_ID_SETTER.invokeExact(connection, offlineUUID);
// if available set rewrite id to forward the UUID for newer BungeeCord versions since
// https://github.com/SpigotMC/BungeeCord/commit/1be25b6c74ec2be4b15adf8ca53a0497f01e2afe
if (REWRITE_ID_SETTER != null) {
REWRITE_ID_SETTER.invokeExact(connection, offlineUUID);
}
String format = "Overridden UUID from {} to {} (based of {}) on {}";
plugin.getLog().info(format, oldPremiumId, offlineUUID, username, connection);
} catch (Exception ex) {