hosted.enabled turns on pushing packages to the proxy and is off by default, like mirror_api. A pushed version is served in place of the upstream version with the same number, so anyone who can write could swap a package for every client. Enabling it therefore requires hosted.token, which supports ${VAR_NAME} expansion and can be set with PROXY_HOSTED_TOKEN. hosted.max_upload_size caps one archive and defaults to 100MB.
requireBearerToken compares SHA-256 digests of the presented and configured tokens in constant time and answers 401 with a WWW-Authenticate challenge otherwise.
Refs #133
The compare endpoint buffers both archives whole, up to 512 MB each, and
anyone who can reach the UI can call it. A handful of parallel requests for
large cached versions was enough to exhaust the proxy's memory.
- Run at most two diffs at once; refuse more with 503, code BUSY and
Retry-After instead of queueing them
- Keep the per-archive cap, which legitimately large packages need
- Move the compare test's setup into a helper shared by the new tests
* Structured JSON error responses for API endpoints
API handlers returned errors via http.Error (text/plain) with ad-hoc
strings, while the mirror API used a different {"error": "..."} shape
and leaked internal err.Error() text to clients.
Add ErrorResponse{Code, Message} with stable codes (BAD_REQUEST,
NOT_FOUND, UPSTREAM_ERROR, INTERNAL_ERROR) and writeError/badRequest/
notFound/internalError helpers. Convert all JSON API handlers in
api.go, browse.go, mirror_api.go and the /stats endpoint. Enrichment
failures now report 502 UPSTREAM_ERROR rather than 500.
Protocol handlers in internal/handler/ are deliberately unchanged
since npm/pip/cargo clients expect their own response formats, not
JSON. HTML page handlers in server.go also keep text/plain.
Swagger @Failure annotations updated and docs regenerated.
Fixes#76
* Convert validatePackagePath errors to JSON in API handlers
