A response arriving during a hold was sent before it began, so a late
success no longer releases the host; only one after the hold has ended
does.
Artifact fetches check RateLimitGate.Held before calling the fetcher, so
held cache misses fail with the HeldError without counting as failures
in the host's circuit breaker.
Every handler that answers an upstream fetch error with 502 now answers
a held request with 503 and Retry-After instead.
OnHold and RecordUpstreamRateLimitHold drop the unused duration.
Crates are stored under the name they were published with, and purl keeps cargo names as they are. Package rules have to match that name exactly, so pkg:cargo/inflector doesn't cover Inflector.
Refs #306
* feat(storage): expose efficient seek for local files
Open file-backed artifacts with os.Open so local readers support
efficient seeking. Leave cloud storage readers unchanged.
Keep the legacy sidecar mapping test focused on fileblob's reader:
Blob.Open now reads local files directly and no longer consults the
sidecar. Continue checking sidecar cleanup and post-store reads.
* feat(handler): preserve efficient seek through integrity checks
Keep the cache result's single Reader field and preserve io.Seeker
when the underlying storage reader supports efficient seeking.
Sequential reads continue through whole-object integrity verification.
A successful seek switches subsequent reads to the source for range
responses, where full-object verification is not possible.
Test both modes and verify the source is closed once.
* feat(handler): add request-aware byte range responses
Add a request-aware artifact serving helper for bounded, open-ended,
and suffix byte ranges, including If-Range handling, 206 responses,
and 416 responses for valid unsatisfiable ranges.
Ignore malformed and multi-range requests by serving the full artifact.
Advertise byte-range support only for seekable readers, preserving HEAD,
redirect, and non-seekable behavior. Clarify that net/http recovers
ErrAbortHandler per request and keeps the server running.
* feat(handler): enable byte ranges across artifact downloads
Forward each artifact request to the shared range-aware response helper,
including cached generic release assets and OCI blobs. This lets the
handler honor ranges only when its reader supports efficient seeking,
without changing direct-storage redirect behavior.
Add warm-cache endpoint tests that assert partial response headers and
bytes without an upstream refetch. Document supported range behavior,
unsupported reader fallback, and the integrity limitation of partial reads.
goconst tripped on main after #259 landed on top of #280: five
composite-literal occurrences each of "Content-Length" and
"Content-Type" across container.go, container_manifest.go,
container_tags.go, handler.go, and swift.go crossed the
min-occurrences: 5 threshold. Neither PR hit it alone.
Add headerContentType and headerContentLength beside
headerAcceptEncoding and use them throughout the package rather than
only at the flagged sites, so the next handler that adds one does not
re-trip the check.
NormalizedPackages runs config keys through purl.Parse().String(), which
applies per-type rules like lowercasing pypi names. The handler side was
building lookup keys with MakePURLString, which does not, so a config
entry for pkg:pypi/Django would be normalized to pkg:pypi/django and
never match the runtime key pkg:pypi/Django.
Route both sides through the same canonical form: a new
canonicalPackagePURL helper calls Normalize() on the constructed PURL
before stringifying, and all cooldown IsAllowed call sites use it.
Add a `proxy mirror` CLI command and `/api/mirror` API endpoints that
pre-populate the cache from various input sources: individual PURLs,
SBOM files (CycloneDX and SPDX), or full registry enumeration.
The mirror reuses the existing handler.Proxy.GetOrFetchArtifact()
pipeline so cached artifacts are identical to those fetched on demand.
A bounded worker pool controls download parallelism.
Metadata caching is opt-in via `cache_metadata: true` in config (or
PROXY_CACHE_METADATA=true). The mirror command always enables it. When
enabled, upstream metadata responses are stored for offline fallback
with ETag-based conditional revalidation.
New internal/mirror package with Source interface, PURLSource,
SBOMSource, RegistrySource, and async JobStore. New metadata_cache
database table for offline metadata serving.
* Add Cargo cooldown support
- Added support for cooldowns for cargo
- Added a test to test cooldowns with cargo
* Update README.md
add cargo to registry's with support for cooldowns
* Apply suggestion from @andrew
Co-authored-by: Andrew Nesbitt <andrewnez@gmail.com>
* Fix all golangci-lint issues across the codebase
Resolve 77 lint issues reported by golangci-lint with gocritic, gocognit,
gocyclo, maintidx, dupl, mnd, unparam, ireturn, goconst, and errcheck
enabled. Net reduction of ~175 lines through shared helpers and
deduplication.
* Suppress staticcheck SA1019 for intentional deprecated field usage
The Storage.Path field is deprecated but still read for backwards
compatibility with existing configs that haven't migrated to the URL field.
All handler metadata and proxy requests were using http.DefaultClient directly,
bypassing any timeout or transport configuration. Added an HTTPClient field to
the Proxy struct with a 30-second default timeout, and updated every handler
to use it for upstream HTTP requests.
