Add ability to use texture url in /skull

Essentials/src/main/java/com/earth2me/essentials/commands/Commandskull.java

@@ -5,34 +5,74 @@
 import com.earth2me.essentials.utils.EnumUtil;
 import com.earth2me.essentials.utils.MaterialUtil;
 import com.google.common.collect.Lists;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
 import org.bukkit.Material;
 import org.bukkit.Server;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.SkullMeta;
+import org.bukkit.profile.PlayerProfile;
 
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Base64;
 import java.util.Collections;
 import java.util.List;
+import java.util.UUID;
 import java.util.regex.Pattern;
 
 import static com.earth2me.essentials.I18n.tl;
 
 public class Commandskull extends EssentialsCommand {
 
  private static final Pattern NAME_PATTERN = Pattern.compile("^[A-Za-z0-9_]+$");
+ private static final Pattern URL_VALUE_PATTERN = Pattern.compile("^[0-9a-fA-F]{64}$");
+ private static final Pattern BASE_64_PATTERN = Pattern.compile("^[A-Za-z0-9+/=]{180}$");
+
  private static final Material SKULL_ITEM = EnumUtil.getMaterial("PLAYER_HEAD", "SKULL_ITEM");
 
+ private final boolean playerProfileSupported;
+
  public Commandskull() {
  super("skull");
+
+ // The player profile API is only available in newer versions of Spigot 1.18.1 and above
+ boolean playerProfileSupported = true;
+ try {
+ Class.forName("org.bukkit.profile.PlayerProfile");
+ } catch (final ClassNotFoundException e) {
+ playerProfileSupported = false;
+ }
+ this.playerProfileSupported = playerProfileSupported;
  }
 
  @Override
  protected void run(final Server server, final User user, final String commandLabel, final String[] args) throws Exception {
  final String owner;
  if (args.length > 0 && user.isAuthorized("essentials.skull.others")) {
- if (!NAME_PATTERN.matcher(args[0]).matches()) {
+ if (BASE_64_PATTERN.matcher(args[0]).matches()) {
+ try {
+ final String decoded = new String(Base64.getDecoder().decode(args[0]));
+ final JsonObject jsonObject = JsonParser.parseString(decoded).getAsJsonObject();
+ final String url = jsonObject
+ .getAsJsonObject("textures")
+ .getAsJsonObject("SKIN")
+ .get("url")
+ .getAsString();
+ owner = url.substring(url.lastIndexOf("/") + 1);
+ } catch (final Exception e) {
+ // Any exception that can realistically happen here is caused by an invalid texture value
+ throw new IllegalArgumentException(tl("skullInvalidBase64"));
+ }
+
+ if (!URL_VALUE_PATTERN.matcher(owner).matches()) {
+ throw new IllegalArgumentException(tl("skullInvalidBase64"));
+ }
+ } else if (!NAME_PATTERN.matcher(args[0]).matches()) {
  throw new IllegalArgumentException(tl("alphaNames"));
+ } else {
+ owner = args[0];
  }
- owner = args[0];
  } else {
  owner = user.getName();
  }
@@ -60,18 +100,43 @@ protected void run(final Server server, final User user, final String commandLab
 
  private void editSkull(final User user, final ItemStack stack, final SkullMeta skullMeta, final String owner, final boolean spawn) {
  ess.runTaskAsynchronously(() -> {
- //Run this stuff async because SkullMeta#setOwner causes a http request.
- skullMeta.setDisplayName("§fSkull of " + owner);
- //noinspection deprecation
- skullMeta.setOwner(owner);
+ // Run this stuff async because it causes an HTTP request
+
+ final String shortOwnerName;
+ if (URL_VALUE_PATTERN.matcher(owner).matches()) {
+ if (!playerProfileSupported) {
+ user.sendMessage(tl("unsupportedFeature"));
+ return;
+ }
+
+ final URL url;
+ try {
+ url = new URL("https://textures.minecraft.net/texture/" + owner);
+ } catch (final MalformedURLException e) {
+ // The URL should never be malformed
+ throw new RuntimeException(e);
+ }
+
+ final PlayerProfile profile = ess.getServer().createPlayerProfile(UUID.randomUUID());
+ profile.getTextures().setSkin(url);
+ skullMeta.setOwnerProfile(profile);
+
+ shortOwnerName = owner.substring(0, 7);
+ } else {
+ //noinspection deprecation
+ skullMeta.setOwner(owner);
+ shortOwnerName = owner;
+ }
+ skullMeta.setDisplayName("§fSkull of " + shortOwnerName);
+
  ess.scheduleSyncDelayedTask(() -> {
  stack.setItemMeta(skullMeta);
  if (spawn) {
  Inventories.addItem(user.getBase(), stack);
- user.sendMessage(tl("givenSkull", owner));
+ user.sendMessage(tl("givenSkull", shortOwnerName));
  return;
  }
- user.sendMessage(tl("skullChanged", owner));
+ user.sendMessage(tl("skullChanged", shortOwnerName));
  });
  });
  }

Essentials/src/main/resources/messages.properties

@@ -1208,6 +1208,9 @@ skullCommandUsage1=/<command>
 skullCommandUsage1Description=Gets your own skull
 skullCommandUsage2=/<command> <player>
 skullCommandUsage2Description=Gets the skull of the specified player
+skullCommandUsage3=/<command> <texture>
+skullCommandUsage3Description=Gets a skull with the specified texture (either the hash from a texture URL or a Base64 texture value)
+skullInvalidBase64=\u00a74The texture value is invalid.
 slimeMalformedSize=\u00a74Malformed size.
 smithingtableCommandDescription=Opens up a smithing table.
 smithingtableCommandUsage=/<command>