NuGet index rewrites embed the client Host and X-Forwarded-Proto into per-request JSON, so a shared cache could store one host's URLs, a forged header could inject content, HEAD skipped the rewrite, and immutable flat-container blobs were re-validated as mutable.
- set `no-store`, `Vary: Host, X-Forwarded-Proto` and the rewritten Content-Length on GET and HEAD
- share `v1.Scheme()` (first X-Forwarded-Proto value, `http`/`https` only) across nuget, cargo, virtual redirects and the terraform registry
- reject non host[:port] Host headers and JSON-escape the injected base URL
- classify `.snupkg`, `readme` and `icon` flat-container blobs as immutable
requires unkin/artifactapi#148 merged first
Reviewed-on: #149
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
.NET builds restore from nuget.org directly because artifactapi has no NuGet remote type.
- add `nuget` package type proxying a NuGet v3 feed; `index.json` maps to the upstream service index
- add a `ServeRewriter` provider hook so cached JSON has upstream-origin URLs pointed back at the requesting host per request
- treat `.nupkg`/`.nuspec` as immutable and service, registration and flat container indexes as mutable
- add a `nuget.config` usage snippet to the UI and a nuget e2e caching case
Reviewed-on: #141
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
unkin-agent