mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-26 12:36:07 +01:00
72 lines
4.2 KiB
Diff
72 lines
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
|
|
Date: Sat, 1 Jan 2022 05:19:37 -0800
|
|
Subject: [PATCH] Validate usernames
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
index a7da99ac31bbcb8b6f1814a2d5509c7067aafb08..fb582acfe9e5cb68314ee39e1d54a550d6700e76 100644
|
|
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
@@ -63,6 +63,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
|
|
public GameProfile authenticatedProfile; // Paper - public
|
|
private final String serverId;
|
|
private ServerPlayer player; // CraftBukkit
|
|
+ public boolean iKnowThisMayNotBeTheBestIdeaButPleaseDisableUsernameValidation = false; // Paper - username validation overriding
|
|
|
|
public ServerLoginPacketListenerImpl(MinecraftServer server, Connection connection) {
|
|
this.state = ServerLoginPacketListenerImpl.State.HELLO;
|
|
@@ -137,7 +138,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
|
|
@Override
|
|
public void handleHello(ServerboundHelloPacket packet) {
|
|
Validate.validState(this.state == ServerLoginPacketListenerImpl.State.HELLO, "Unexpected hello packet", new Object[0]);
|
|
- Validate.validState(Player.isValidUsername(packet.name()), "Invalid characters in username", new Object[0]);
|
|
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode() && io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.performUsernameValidation && !this.iKnowThisMayNotBeTheBestIdeaButPleaseDisableUsernameValidation) Validate.validState(Player.isValidUsername(packet.name()), "Invalid characters in username", new Object[0]); // Paper - config username validation
|
|
this.requestedUsername = packet.name();
|
|
GameProfile gameprofile = this.server.getSingleplayerProfile();
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
index 7cd6d91fe154d29ec0b0fc0a5a50713bbc2c1c83..95ba9b3bf957e5f744e85b3834a50ee2eb925a70 100644
|
|
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
@@ -678,7 +678,7 @@ public abstract class PlayerList {
|
|
|
|
for (int i = 0; i < this.players.size(); ++i) {
|
|
entityplayer = (ServerPlayer) this.players.get(i);
|
|
- if (entityplayer.getUUID().equals(uuid)) {
|
|
+ if (entityplayer.getUUID().equals(uuid) || (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode() && entityplayer.getGameProfile().getName().equalsIgnoreCase(gameprofile.getName()))) { // Paper - validate usernames
|
|
list.add(entityplayer);
|
|
}
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
|
|
index e06cb31f9e3eda651a44dcede095ef7b38ef2ba7..7c0db708575ef26a1dd73709bf22653f21e0c863 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
|
|
@@ -2341,9 +2341,23 @@ public abstract class Player extends LivingEntity {
|
|
}
|
|
|
|
public static boolean isValidUsername(String name) {
|
|
- return name.length() > 16 ? false : name.chars().filter((i) -> {
|
|
- return i <= 32 || i >= 127;
|
|
- }).findAny().isEmpty();
|
|
+ // Paper start - username validation overriding
|
|
+ if (name == null || name.isEmpty() || name.length() > 16) {
|
|
+ return false;
|
|
+ }
|
|
+
|
|
+ for (int i = 0, len = name.length(); i < len; ++i) {
|
|
+ char c = name.charAt(i);
|
|
+
|
|
+ if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || (c == '_' || c == '.')) {
|
|
+ continue;
|
|
+ }
|
|
+
|
|
+ return false;
|
|
+ }
|
|
+
|
|
+ return true;
|
|
+ // Paper end - username validation overriding
|
|
}
|
|
|
|
public static float getPickRange(boolean creative) {
|