init

internal/cas/http.go

@@ -0,0 +1,58 @@
+package cas
+
+import (
+	"io"
+	"net/http"
+	"strings"
+)
+
+type Fetcher interface {
+	FetchTo(hash string, w http.ResponseWriter) bool
+}
+
+type HTTP struct {
+	S       *Store
+	Fetcher Fetcher // optional, for federation
+}
+
+// Public: GET /c/<hash>
+func (h *HTTP) Serve(w http.ResponseWriter, r *http.Request) {
+	hash := strings.TrimPrefix(r.URL.Path, "/c/")
+	if hash == "" {
+		w.WriteHeader(400)
+		return
+	}
+	if h.S.Has(hash) {
+		w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
+		_ = h.S.Get(hash, w)
+		return
+	}
+	if h.Fetcher != nil && h.Fetcher.FetchTo(hash, w) {
+		return
+	}
+	w.WriteHeader(404)
+}
+
+// Mesh: GET /_mesh/cas/<hash> → raw bytes
+func (h *HTTP) MeshGet(w http.ResponseWriter, r *http.Request) {
+	hash := strings.TrimPrefix(r.URL.Path, "/_mesh/cas/")
+	if hash == "" {
+		w.WriteHeader(400)
+		return
+	}
+	if !h.S.Has(hash) {
+		w.WriteHeader(404)
+		return
+	}
+	_ = h.S.Get(hash, w)
+}
+
+// Mesh: POST /_mesh/cas/put → returns hash as text
+func (h *HTTP) MeshPut(w http.ResponseWriter, r *http.Request) {
+	hash, err := h.S.PutStream(r.Body)
+	if err != nil {
+		w.WriteHeader(500)
+		return
+	}
+	io.WriteString(w, hash)
+}