feat: add default furni icon repair sources

Fall back to well-known public furni icon hosts (HabboAssets, Hubbly,
Leet) when no clone sources are configured, so Repair Icons can download
missing icons out of the box. Also handle variant classnames (base name
and '*' replaced with '_') and extract icons from remote .nitro bundles.
Send a browser User-Agent on downloads to avoid being blocked by hotels.

src/lib/services/clone-sources.ts

@@ -11,6 +11,30 @@ export interface CloneSource {
 
 const KEY = "clone_sources";
 
+export const DEFAULT_ICON_SOURCES: CloneSource[] = [
+	{
+		id: "default-habboassets",
+		name: "HabboAssets",
+		furnidataUrl: "",
+		nitroBaseUrl: "",
+		iconBaseUrl: "https://www.habboassets.com/assets/furniture",
+	},
+	{
+		id: "default-hubbly",
+		name: "Hubbly",
+		furnidataUrl: "",
+		nitroBaseUrl: "",
+		iconBaseUrl: "https://hubbly.pw/swf/dcr/hof_furni/icons",
+	},
+	{
+		id: "default-leet",
+		name: "Leet",
+		furnidataUrl: "",
+		nitroBaseUrl: "",
+		iconBaseUrl: "https://images.leet.city/library/hof_furni/icons",
+	},
+];
+
 export async function listSources(): Promise<CloneSource[]> {
 	const raw = (await siteSettings.get(KEY, "[]")) ?? "[]";
 	try {

src/lib/services/import/core/download.ts

@@ -29,7 +29,14 @@ export async function downloadFile(
 			if (attempt > 0) {
 				await new Promise((r) => setTimeout(r, baseDelay * 2 ** (attempt - 1)));
 			}
-			const res = await fetch(url, { signal: AbortSignal.timeout(15000) });
+			const res = await fetch(url, {
+				signal: AbortSignal.timeout(15000),
+				headers: {
+					"User-Agent":
+						"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0 Safari/537.36",
+					Accept: "image/png,image/*,*/*;q=0.8",
+				},
+			});
 			if (!res.ok) {
 				const deterministic =
 					res.status === 404 || res.status === 410 || res.status === 403;

src/lib/services/repair-icons.ts

@@ -3,7 +3,11 @@ import path from "node:path";
 import { sql } from "drizzle-orm";
 import { db } from "@/lib/db";
 import { extractFurniIconPng } from "@/lib/services/clone-icon";
-import { listSources } from "@/lib/services/clone-sources";
+import {
+	type CloneSource,
+	DEFAULT_ICON_SOURCES,
+	listSources,
+} from "@/lib/services/clone-sources";
 import { getFurniAssetDirs } from "@/lib/services/furni-asset-dirs";
 import { downloadFile } from "@/lib/services/import/core/download";
 import { ensureDirectories } from "./furni-import";
@@ -108,12 +112,34 @@ export async function repairMissingIcons(
 		}
 
 		if (!ok) {
+			let sources: CloneSource[] = [];
 			try {
-				const sources = await listSources();
-				for (const source of sources) {
+				sources = (await listSources()).filter(
+					(s) => s.iconBaseUrl || s.nitroBaseUrl,
+				);
+			} catch (err) {
+				warnings.push(`listSources failed: ${(err as Error).message}`);
+			}
+			if (sources.length === 0) sources = DEFAULT_ICON_SOURCES;
+
+			for (const source of sources) {
+				const iconCandidates = [
+					`${classname}_icon.png`,
+					// Variant classnames (e.g. `table_silo_med*10`) often only exist
+					// on sources under their base name (e.g. `table_silo_med_icon.png`)
+					// or with the `*` replaced by `_` (e.g. `table_silo_med_10_icon.png`).
+					...(classname.includes("*")
+						? [
+								`${classname.split("*")[0]}_icon.png`,
+								`${classname.replace(/\*/g, "_")}_icon.png`,
+							]
+						: []),
+				];
+
+				for (const iconName of iconCandidates) {
 					try {
 						const dl = await downloadFile(
-							`${source.iconBaseUrl}/${classname}_icon.png`,
+							`${source.iconBaseUrl}/${iconName}`,
 							iconPath,
 							{ maxRetries: 1, validate: "png" },
 						);
@@ -121,12 +147,45 @@ export async function repairMissingIcons(
 							ok = true;
 							break;
 						}
-					} catch {
-						warnings.push(`download from ${source.name} failed`);
+						warnings.push(`${iconName} not found on ${source.name}`);
+					} catch (err) {
+						warnings.push(
+							`download from ${source.name} failed: ${(err as Error).message}`,
+						);
 					}
 				}
-			} catch (err) {
-				warnings.push(`listSources failed: ${(err as Error).message}`);
+				if (ok) break;
+
+				// Some sources only ship icons embedded in their `.nitro` bundles —
+				// grab the bundle and extract the catalog icon from it.
+				if (source.nitroBaseUrl) {
+					const nitroTmp = path.join(nitroDir, `.repair_${classname}.nitro`);
+					try {
+						const dl = await downloadFile(
+							`${source.nitroBaseUrl}/${classname}.nitro`,
+							nitroTmp,
+							{ maxRetries: 1 },
+						);
+						if (dl.ok) {
+							const icon = extractFurniIconPng(await fs.readFile(nitroTmp));
+							if (icon) {
+								await fs.writeFile(iconPath, icon);
+								ok = true;
+							} else {
+								warnings.push(`no icon asset in ${source.name} .nitro bundle`);
+							}
+						} else {
+							warnings.push(`.nitro not found on ${source.name}`);
+						}
+					} catch (err) {
+						warnings.push(
+							`extract from ${source.name} .nitro failed: ${(err as Error).message}`,
+						);
+					} finally {
+						await fs.unlink(nitroTmp).catch(() => {});
+					}
+					if (ok) break;
+				}
 			}
 		}