Initial public release: Nym-native anonymous submission system

End-to-end verified pipeline (browser -> HTTP relay -> Nym mixnet -> reader).
Client-side X25519+HKDF+AES-GCM-256, no-log blind relay, AGPL-3.0.

1 files changed, 19 insertions, 0 deletions

diff --git a/internal/handler/static.go b/internal/handler/static.go
new file mode 100644
index 0000000..bf2aaec
--- /dev/null
+++ b/internal/handler/static.go
@@ -0,0 +1,19 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func Static(dir string) http.Handler {
+	fs := http.FileServer(http.Dir(dir))
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Security headers on every response.
+		w.Header().Set("Content-Security-Policy", "default-src 'self'; script-src 'self'; style-src 'self'")
+		w.Header().Set("X-Content-Type-Options", "nosniff")
+		w.Header().Set("Referrer-Policy", "no-referrer")
+		w.Header().Set("Permissions-Policy", "geolocation=(), microphone=(), camera=()")
+		w.Header().Set("X-Frame-Options", "DENY")
+		w.Header().Set("Cache-Control", "no-store")
+		fs.ServeHTTP(w, r)
+	})
+}