vole

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A free and open-source forge that lives in your Git repo.

Compress hosted site responses too

a76b2f38cb6692f7fe88c83e4552205d398f30df · Keenan Nemetz · 12d ago · parent 306f36fc

Compress hosted site responses too

The gzip middleware covered the forge UI and nothing else: server.Handler
dispatches a site host to server/pages before the forge middleware runs, so
every hosted site was serving raw HTML, CSS and JavaScript. A site is a static
file server, which is the best case gzip has.

The compressor moves from server/web to internal/compress so both surfaces share
one implementation of the negotiation and header rules, with two entry points:
New for the forge, which needs the writer inside its own status recorder and
panic handling, and Handler for the site dispatcher.

Site responses keep their ETag and Last-Modified, so revalidation is still a 304
off the blob sha; Vary: Accept-Encoding names the representation; a 304 and a
301 carry no body to compress; and a client that does not ask for gzip still
gets the exact bytes and the exact Content-Length.

Measured on the site path, an HTML page with repeated markup goes from 1.5 KB to
83 bytes.

server/server.go +9−1

@@ -21,6 +21,7 @@ import (
	21	21	"github.com/rodent-software/vole/forge/pageview"
	22	22	"github.com/rodent-software/vole/forge/repo"
	23	23	"github.com/rodent-software/vole/forge/session"
		24	"github.com/rodent-software/vole/internal/compress"
	24	25	"github.com/rodent-software/vole/server/githttp"
	25	26	"github.com/rodent-software/vole/server/pages"
	26	27	"github.com/rodent-software/vole/server/ssh"
@@ -185,14 +186,21 @@ func New(cfg config.Config, binPath string, log slog.Logger) (*Server, error)
	185	186
	186	187	// Handler returns the HTTP surface. Site hosts are dispatched first: a request
	187	188	// for <repo>.<pages_domain> is a page, and everything else is the forge UI.
		189	//
		190	// Sites are compressed here rather than inside the pages package because the
		191	// dispatcher is the last point both surfaces pass through, and a site is a static
		192	// file server: HTML, CSS and JavaScript, which is exactly what gzip is for. The
		193	// forge UI does its own, inside its middleware, because the compressor has to sit
		194	// under the status recorder there.
	188	195	func (s *Server) Handler() http.Handler {
	189	196	forge := s.Web.Middleware(s.mux)
	190	197	if s.Pages == nil {
	191	198	return forge
	192	199	}
		200	sites := compress.Handler(s.Pages)
	193	201	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
	194	202	if _, ok := s.Pages.Host(r.Host); ok {
	195		s.Pages.ServeHTTP(w, r)
		203	sites.ServeHTTP(w, r)
	196	204	return
	197	205	}
	198	206	forge.ServeHTTP(w, r)