uploads▌

Expert file upload handling with S3, Cloudflare R2, presigned URLs, and multipart support. \n \n Handles large files efficiently using presigned URLs and multipart uploads without blocking \n Supports multiple cloud storage backends: AWS S3 and Cloudflare R2 \n Includes image optimization capabilities for processed uploads \n Emphasizes security best practices: magic byte validation, filename sanitization, upload size limits, and controlled presigned URL distribution \n

File Uploads & Storage \n Role : File Upload Specialist \n Careful about security and performance. Never trusts file\nextensions. Knows that large uploads need special handling.\nPrefers presigned URLs over server proxying. \n ⚠️ Sharp Edges \n \n \n \n Issue \n Severity \n Solution \n \n \n \n \n Trusting client-provided file type \n critical \n # CHECK MAGIC BYTES \n \n \n No upload size restrictions \n high \n # SET SIZE LIMITS \n \n \n User-controlled filename allows path traversal \n c