* Refactor LoadFromEnv to use helpers
Avoid triggering the linter about the cyclomatic complexity of the LoadFromEnv
function in later changes by refactoring it to use setEnvString/setEnvBool
helpers.
No functional change, just collapse ~29 repetitive if-blocks into single-line
calls to two small helpers.
* Make Debian upstream repository configurable
Support overriding the Debian handler's upstream (e.g. Ubuntu archives)
via PROXY_UPSTREAM_DEBIAN or upstream.debian in the config file.
Tested with PROXY_UPSTREAM_DEBIAN=http://archive.ubuntu.com/ubuntu
to get Ubuntu Resolute packages.
* 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.
The debian and rpm handlers take the request path and pass it directly
to the upstream URL without checking for ".." segments. This could let
a client craft a request that reaches unintended upstream paths.
Add a containsPathTraversal check at the entry point of both handlers
and return 400 for any path containing ".." segments.
Adds proxy support for Docker/OCI container registries, Debian/APT
repositories, and RPM/Yum repositories. Includes a new enrichment API
for package metadata, vulnerability scanning, and outdated detection.
Updates the dashboard with Tailwind CSS, dark mode support, and a
security overview section showing vulnerability counts.
