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OBFHELPERS (#4733)

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This commit is contained in:
Mariell 2020-11-03 22:30:15 +01:00
parent c208709558
commit 0b2f49cb81
2 changed files with 15 additions and 5 deletions
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15
Spigot-Server-Patches/Fix-exploit-that-allowed-colored-signs-to-be-created.patch
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@ -13,8 +13,19 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
for (int i = 0; i < list.size(); ++i) {
- lines[i] = EnumChatFormat.a(new ChatComponentText(EnumChatFormat.a((String) list.get(i))).getString());
+ // Paper TODO(Proximyst): Add obfhelper when 1.16.4 runs
+ lines[i] = SharedConstants.a(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
+ lines[i] = SharedConstants.filterAllowedChatCharacters(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
}
SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines);
this.server.getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/server/SharedConstants.java b/src/main/java/net/minecraft/server/SharedConstants.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/SharedConstants.java
+++ b/src/main/java/net/minecraft/server/SharedConstants.java
@@ -0,0 +0,0 @@ public class SharedConstants {
return c0 != 167 && c0 >= ' ' && c0 != 127;
}
+ public static String filterAllowedChatCharacters(String input) { return a(input); } // Paper - OBFHELPER
public static String a(String s) {
StringBuilder stringbuilder = new StringBuilder();
char[] achar = s.toCharArray();

5
Spigot-Server-Patches/Limit-Client-Sign-length-more.patch
View file

@ -37,6 +37,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
String[] lines = new String[4];
for (int i = 0; i < list.size(); ++i) {
- lines[i] = SharedConstants.filterAllowedChatCharacters(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
+ // Paper start - cap line length - modified clients can send longer data than normal
+ String currentLine = list.get(i);
+ if (MAX_SIGN_LINE_LENGTH > 0 && currentLine.length() > MAX_SIGN_LINE_LENGTH) {
@ -47,9 +48,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ }
+ }
+ // Paper end
// Paper TODO(Proximyst): Add obfhelper when 1.16.4 runs
- lines[i] = SharedConstants.a(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
+ lines[i] = SharedConstants.a(currentLine); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
+ lines[i] = SharedConstants.filterAllowedChatCharacters(currentLine); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
}
SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines);
this.server.getPluginManager().callEvent(event);