Store client IP address in request context

middleware/client_ip.go

@@ -0,0 +1,21 @@
+// Copyright 2018 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package middleware // import "miniflux.app/middleware"
+
+import (
+	"context"
+	"net/http"
+
+	"miniflux.app/http/request"
+)
+
+// ClientIP stores in the real client IP address in the context.
+func (m *Middleware) ClientIP(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+		ctx = context.WithValue(ctx, request.ClientIPContextKey, request.FindClientIP(r))
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}