Refactoring project, adding BAN handling with X-Cache-Tags

app/Http/utils.go

@@ -0,0 +1,32 @@
+// Package http provides functions to handle incoming HTTP requests
+package http
+
+import (
+	varnish "http-broadcaster/Varnish"
+	"io"
+	"log"
+	"net/http"
+)
+
+// RequestHandler handles requests to broadcast to all varnish instances.
+func RequestHandler(w http.ResponseWriter, r *http.Request) {
+	url := r.URL.String()
+	method := r.Method
+	tag := r.Header.Get("X-Cache-Tags")
+	remoteAddr := r.RemoteAddr
+	status := varnish.SendToVarnish(method, url, tag)
+	if status != "200 Purged" {
+		w.WriteHeader(405)
+	}
+	if tag != "" {
+		log.Println(remoteAddr + " Requested ban on X-Cache-Tags : " + tag + " , status: " + status)
+	} else {
+		log.Println(remoteAddr + " Requested purge on URI :" + url + " , status: " + status)
+	}
+	io.WriteString(w, status)
+}
+
+// HealthHandler handles healthcheck requests and return 200.
+func HealthHandler(w http.ResponseWriter, _ *http.Request) {
+	io.WriteString(w, "OK")
+}