Added info uploader tool tip, moderators can delete shared cosmetics/opped users, added a black fill to preview boxes
MomokoKoigakubo
4 weeks ago
parent
063d85a398
commit
1d92791f74
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package com.razz.dfashion.client;
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import com.razz.dfashion.cosmetic.share.packet.RequestCosmeticInfo;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* Client-side cache of uploader metadata for shared cosmetics. Fetched lazily from the
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* server via {@link RequestCosmeticInfo} the first time the UI asks about a hash; the
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* server's {@link com.razz.dfashion.cosmetic.share.packet.CosmeticInfoResponse} lands in
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* {@link #onResponse} and the cached value is then read synchronously by the tooltip.
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*
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* <p>Entries are process-lifetime; a new server world/login starts empty. This is fine
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* for a UI hint — nothing functional depends on freshness and OP-initiated deletes on
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* the server can't produce a mismatch the user would notice.
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*/
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public final class ClientCosmeticInfoCache {
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public record Info(String uploaderName, long uploadedAt) {
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public boolean isKnown() {
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return !uploaderName.isEmpty() || uploadedAt != 0L;
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}
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}
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private static final Map<String, Info> CACHE = new ConcurrentHashMap<>();
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private static final java.util.Set<String> PENDING = ConcurrentHashMap.newKeySet();
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private ClientCosmeticInfoCache() {}
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/** Known info for the hash, or {@code null} if not yet received. */
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public static Info get(String hash) {
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return CACHE.get(hash);
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}
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/**
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* Trigger a fetch if we've never requested this hash. Idempotent — repeat calls while
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* a request is pending are coalesced. Once a response lands the cache stays populated
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* for the rest of the session.
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*/
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public static void requestIfMissing(String hash) {
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if (hash == null || hash.isEmpty()) return;
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if (CACHE.containsKey(hash)) return;
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if (!PENDING.add(hash)) return;
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ClientSharedCosmeticCache.sendToServer(new RequestCosmeticInfo(hash));
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}
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public static void onResponse(String hash, String uploaderName, long uploadedAt) {
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CACHE.put(hash, new Info(uploaderName == null ? "" : uploaderName, uploadedAt));
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PENDING.remove(hash);
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}
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/** Drop a hash's info (e.g. after an OP-delete) so the UI won't show stale data. */
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public static void forget(String hash) {
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CACHE.remove(hash);
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PENDING.remove(hash);
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}
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}
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@ -0,0 +1,147 @@
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package com.razz.dfashion.cosmetic.share;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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import com.razz.dfashion.DecoFashion;
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import net.minecraft.server.MinecraftServer;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.StandardCopyOption;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.UUID;
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import java.util.WeakHashMap;
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/**
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* Server-side index mapping a shared-cosmetic hash to the player who first uploaded it.
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* Persisted as JSON alongside the {@code .dfcos} blobs in {@link SharedCosmeticCache}.
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*
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* <p>Content is content-addressed, so byte-identical uploads from two players dedup on
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* disk. The registry records the <b>first</b> uploader and never overwrites — otherwise
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* an attacker could launder authorship by re-uploading a popular cosmetic.
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*/
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public final class CosmeticUploadRegistry {
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public record UploadRecord(UUID uploader, String uploaderName, long uploadedAt) {}
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private static final String FILE_NAME = "uploaders.json";
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/** One in-memory cache per live {@link MinecraftServer}. WeakHashMap so server shutdown
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* drops the entry automatically. Per-map writes are synchronized on the map. */
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private static final Map<MinecraftServer, Map<String, UploadRecord>> BY_SERVER =
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Collections.synchronizedMap(new WeakHashMap<>());
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private CosmeticUploadRegistry() {}
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private static Path fileFor(MinecraftServer server) {
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return server.getServerDirectory().resolve("decofashion/cosmetics").resolve(FILE_NAME);
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}
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private static synchronized Map<String, UploadRecord> getOrLoad(MinecraftServer server) {
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Map<String, UploadRecord> cached = BY_SERVER.get(server);
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if (cached != null) return cached;
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Map<String, UploadRecord> loaded = loadFromDisk(server);
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BY_SERVER.put(server, loaded);
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return loaded;
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}
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private static Map<String, UploadRecord> loadFromDisk(MinecraftServer server) {
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Map<String, UploadRecord> out = new HashMap<>();
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Path path = fileFor(server);
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if (!Files.isRegularFile(path)) return out;
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try {
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String json = Files.readString(path, StandardCharsets.UTF_8);
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JsonElement root = JsonParser.parseString(json);
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if (!root.isJsonObject()) return out;
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for (Map.Entry<String, JsonElement> e : root.getAsJsonObject().entrySet()) {
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String hash = e.getKey();
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if (!SharedCosmeticCache.isValidHash(hash)) continue;
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if (!e.getValue().isJsonObject()) continue;
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JsonObject row = e.getValue().getAsJsonObject();
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String uuidStr = row.has("uuid") ? row.get("uuid").getAsString() : null;
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String name = row.has("name") ? row.get("name").getAsString() : "";
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long ts = row.has("uploadedAt") ? row.get("uploadedAt").getAsLong() : 0L;
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if (uuidStr == null) continue;
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try {
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out.put(hash, new UploadRecord(UUID.fromString(uuidStr), name, ts));
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} catch (IllegalArgumentException bad) {
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// skip malformed entry
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}
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}
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} catch (IOException | RuntimeException ex) {
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DecoFashion.LOGGER.warn("CosmeticUploadRegistry: load failed ({}); starting empty", ex.getMessage());
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}
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return out;
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}
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private static void saveToDisk(MinecraftServer server, Map<String, UploadRecord> data) {
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Path path = fileFor(server);
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try {
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Files.createDirectories(path.getParent());
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JsonObject root = new JsonObject();
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// Snapshot under the map's monitor so we don't serialize during a mutation.
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synchronized (data) {
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for (Map.Entry<String, UploadRecord> e : data.entrySet()) {
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JsonObject row = new JsonObject();
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row.addProperty("uuid", e.getValue().uploader().toString());
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row.addProperty("name", e.getValue().uploaderName());
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row.addProperty("uploadedAt", e.getValue().uploadedAt());
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root.add(e.getKey(), row);
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}
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}
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Path tmp = path.resolveSibling(FILE_NAME + ".tmp");
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Files.writeString(tmp, root.toString(), StandardCharsets.UTF_8);
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Files.move(tmp, path, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE);
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} catch (IOException ex) {
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DecoFashion.LOGGER.warn("CosmeticUploadRegistry: save failed ({})", ex.getMessage());
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}
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}
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/** Record the first uploader for a hash. Subsequent calls for the same hash are no-ops. */
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public static void recordIfAbsent(MinecraftServer server, String hash, UUID uploader, String uploaderName) {
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if (!SharedCosmeticCache.isValidHash(hash) || uploader == null) return;
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Map<String, UploadRecord> map = getOrLoad(server);
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boolean changed;
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synchronized (map) {
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changed = !map.containsKey(hash);
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if (changed) {
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map.put(hash, new UploadRecord(uploader, uploaderName == null ? "" : uploaderName,
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System.currentTimeMillis()));
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}
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}
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if (changed) saveToDisk(server, map);
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}
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public static UploadRecord get(MinecraftServer server, String hash) {
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if (!SharedCosmeticCache.isValidHash(hash)) return null;
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Map<String, UploadRecord> map = getOrLoad(server);
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synchronized (map) {
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return map.get(hash);
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}
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}
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/** Returns a snapshot of the full registry. Caller owns the returned map. */
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public static Map<String, UploadRecord> snapshot(MinecraftServer server) {
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Map<String, UploadRecord> map = getOrLoad(server);
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synchronized (map) {
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return new HashMap<>(map);
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}
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}
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/** Drop any record for a hash (called when the blob is deleted). No-op if absent. */
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public static void forget(MinecraftServer server, String hash) {
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if (!SharedCosmeticCache.isValidHash(hash)) return;
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Map<String, UploadRecord> map = getOrLoad(server);
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boolean changed;
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synchronized (map) {
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changed = map.remove(hash) != null;
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}
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if (changed) saveToDisk(server, map);
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}
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}
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package com.razz.dfashion.cosmetic.share.packet;
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import com.razz.dfashion.DecoFashion;
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import net.minecraft.network.FriendlyByteBuf;
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import net.minecraft.network.codec.ByteBufCodecs;
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import net.minecraft.network.codec.StreamCodec;
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import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
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import net.minecraft.resources.Identifier;
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/**
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* Server → client. Uploader metadata response for a specific cosmetic hash.
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*
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* <p>{@code uploaderName} is empty if the uploader is unknown (legacy uploads made before
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* the registry existed, or blobs cleared from the registry). {@code uploadedAt} is epoch
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* millis; {@code 0} means "unknown".
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*/
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public record CosmeticInfoResponse(String hash, String uploaderName, long uploadedAt) implements CustomPacketPayload {
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public static final Type<CosmeticInfoResponse> TYPE =
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new Type<>(Identifier.fromNamespaceAndPath(DecoFashion.MODID, "cosmetic_info"));
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public static final StreamCodec<FriendlyByteBuf, CosmeticInfoResponse> STREAM_CODEC =
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StreamCodec.composite(
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ByteBufCodecs.stringUtf8(64), CosmeticInfoResponse::hash,
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ByteBufCodecs.stringUtf8(128), CosmeticInfoResponse::uploaderName,
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ByteBufCodecs.VAR_LONG, CosmeticInfoResponse::uploadedAt,
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CosmeticInfoResponse::new
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);
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@Override
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public Type<CosmeticInfoResponse> type() {
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return TYPE;
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}
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}
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package com.razz.dfashion.cosmetic.share.packet;
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import com.razz.dfashion.DecoFashion;
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import net.minecraft.network.FriendlyByteBuf;
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import net.minecraft.network.codec.ByteBufCodecs;
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import net.minecraft.network.codec.StreamCodec;
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import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
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import net.minecraft.resources.Identifier;
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/**
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* Client → server. Request uploader metadata for {@code hash}. Server responds with a
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* {@link CosmeticInfoResponse} iff the hash is valid and either (a) it's in the caller's
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* personal library or (b) the caller is an OP — to block arbitrary blob enumeration.
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*/
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public record RequestCosmeticInfo(String hash) implements CustomPacketPayload {
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public static final Type<RequestCosmeticInfo> TYPE =
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new Type<>(Identifier.fromNamespaceAndPath(DecoFashion.MODID, "request_cosmetic_info"));
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public static final StreamCodec<FriendlyByteBuf, RequestCosmeticInfo> STREAM_CODEC =
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StreamCodec.composite(
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ByteBufCodecs.stringUtf8(64), RequestCosmeticInfo::hash,
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RequestCosmeticInfo::new
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);
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@Override
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public Type<RequestCosmeticInfo> type() {
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return TYPE;
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}
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}
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