STL Model Viewer

src/routes/api/upload-stl/+server.ts

@@ -0,0 +1,54 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+import { writeFile, mkdir } from 'fs/promises';
+import { existsSync } from 'fs';
+import path from 'path';
+
+const UPLOAD_DIR = 'static/uploads/models';
+const ALLOWED_EXTENSIONS = ['.stl', '.obj'];
+
+export const POST: RequestHandler = async ({ request, locals }) => {
+    if (!locals.user) {
+        throw error(401, 'Unauthorized');
+    }
+
+    const formData = await request.formData();
+    const file = formData.get('stl') as File; // Keep 'stl' for backward compatibility
+
+    if (!file || file.size === 0) {
+        throw error(400, 'No file provided');
+    }
+
+    // Validate file type
+    const fileName = file.name.toLowerCase();
+    const extension = '.' + fileName.split('.').pop();
+    
+    if (!ALLOWED_EXTENSIONS.includes(extension)) {
+        throw error(400, 'Only STL and OBJ files are allowed');
+    }
+
+    // Create upload directory if it doesn't exist
+    if (!existsSync(UPLOAD_DIR)) {
+        await mkdir(UPLOAD_DIR, { recursive: true });
+    }
+
+    // Generate unique filename
+    const timestamp = Date.now();
+    const sanitizedName = file.name.replace(/[^a-zA-Z0-9.-]/g, '_');
+    const uniqueFileName = `${locals.user.id}_${timestamp}_${sanitizedName}`;
+    const filePath = path.join(UPLOAD_DIR, uniqueFileName);
+
+    // Write file to disk
+    const buffer = Buffer.from(await file.arrayBuffer());
+    await writeFile(filePath, buffer);
+
+    // Return the public path
+    const publicPath = `/uploads/models/${uniqueFileName}`;
+
+    return json({ 
+        success: true, 
+        path: publicPath,
+        fileName: file.name,
+        fileType: extension.slice(1).toUpperCase()
+    });
+};