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Fix NPE on TileEntitySkull (#3598)

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The setGameProfile method on TileEntitySkull is annotated with the @nullable annotation,
but the skull didn't check for null profiles before attempting to retrieve cached skin.
This bug was introduced by the commit making the skull use spigot's User Cache.

Additionally, CraftMetaSkull also had the same issue with a null GameProfile, so this also
ensures it doesn't break.

The whole CraftPlayerProfile class is not null-safe, it requires a GameProfile that isn't
null so we add a Validation on the constructor, that way it is easier to catch this kind
of issue in the future.
This commit is contained in:
PatoTheBest 2020-06-21 21:59:34 -05:00
parent f0a807b3bd
commit 7ae726ce8d
1 changed files with 8 additions and 4 deletions
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6
Spigot-Server-Patches/Basic-PlayerProfile-API.patch
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@ -20,6 +20,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+import com.mojang.authlib.properties.PropertyMap;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.UserCache;
+import org.apache.commons.lang3.Validate;
+import org.bukkit.craftbukkit.entity.CraftPlayer;
+import org.spigotmc.SpigotConfig;
+
@ -46,6 +47,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ }
+
+ public CraftPlayerProfile(GameProfile profile) {
+ Validate.notNull(profile, "GameProfile cannot be null!");
+ this.profile = profile;
+ }
+
@ -463,7 +465,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
private void f() {
// Spigot start
GameProfile profile = this.gameProfile;
+ if (profile.isComplete() && profile.getProperties().containsKey("textures")) return; // Paper
+ if (profile != null && profile.isComplete() && profile.getProperties().containsKey("textures")) return; // Paper
b(profile, new Predicate<GameProfile>() {
@Override
@ -589,9 +591,11 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
private void setProfile(GameProfile profile) {
+ // Paper start
+ if (profile != null) {
+ com.destroystokyo.paper.profile.CraftPlayerProfile paperProfile = new com.destroystokyo.paper.profile.CraftPlayerProfile(profile);
+ paperProfile.completeFromCache();
+ profile = paperProfile.getGameProfile();
+ }
+ // Paper end
this.profile = profile;
this.serializedProfile = (profile == null) ? null : GameProfileSerializer.serialize(new NBTTagCompound(), profile);