Downloader: Dolcemodz-star-model--verified- Free-pic-gallery

| Category | Requirement | |----------|-------------| | Performance | • ZIP creation ≤ 3 seconds for ≤ 100 images (average 500 KB each).
• Streaming ZIP to client (no full buffering on server). | | Scalability | • Service deployed as stateless containers behind a load balancer.
• Use temporary object storage (e.g., S3) for generated ZIPs with 1‑hour TTL. | | Security | • Authenticate via existing JWT token; only logged‑in users can download.
• Validate all inputs (galleryId, imageIds).
• Enforce CORS policy (https://dolcemodz.com). | | Compliance | • Verify that every exported image has a clear “Free” license.
• Include a LICENSE.txt in the ZIP summarizing the gallery’s licensing terms. | | Reliability | • 99.9 % uptime SLA for the download service.
• Automatic retry on transient storage errors. | | Observability | • Emit structured logs (requestId, userId, galleryId, outcome).
• Metrics: download_requests_total, download_bytes_sent, download_errors_total. | | Data Retention | • Audit records retained 12 months; ZIP files auto‑purged after download or 1‑hour TTL. | | Internationalisation | • UI strings externalised; support EN, PT, ES (initially). | | Testing | • Unit tests ≥ 80 % coverage.
• End‑to‑end tests for bulk & selective download flows.
• Load test: 200 concurrent download jobs. |

| # | Question / Risk | Mitigation | |---|----------------|------------| | Q1 | What if a gallery contains mixed‑license images? | Enforce a pre‑download validation step: filter out any non‑free assets and present a warning list to the user before zip creation. | | Q2 | Large galleries → huge ZIPs (potentially > 500 MB). | Implement a size‑limit (e.g., max 200 MB). For larger sets, offer a “download in batches” UI or provide a download‑link via email after asynchronous processing. | | Q3 | Abuse (scraping) – could a bot repeatedly bulk‑download? | Rate limiting per IP + per‑user, CAPTCHAs after a threshold, and monitoring for anomalous patterns. | | Q4 | Browser memory limits when streaming large ZIPs. | Use Content‑Disposition: attachment; filename=… and Transfer‑Encoding: chunked. Test on Safari/Chrome mobile. | | Q5 | Legal compliance across jurisdictions (e.g., GDPR). | Store only minimal audit data (userId, timestamp, galleryId). No personal image data. Provide a clear privacy notice. | Dolcemodz-star-model--VERIFIED- Free-pic-gallery Downloader

For those looking to download online content, there are safe and legal alternatives: | # | Question / Risk | Mitigation