Merge pull request #28 from SiaFoundation/chris/fix-authentication

backend: fix authentication backend up into 2 methods

backend.go

@@ -325,7 +325,8 @@ type MultipartBackend interface {
 }
 
 type AuthenticatedBackend interface {
-	AuthenticateRequest(w http.ResponseWriter, r *http.Request, bucket string) bool
+	IsAuthenticated(w http.ResponseWriter, r *http.Request, bucket string) bool
+	AuthenticationMiddleware(handler http.Handler) http.Handler
 }
 
 // CopyObject is a helper function useful for quickly implementing CopyObject on

gofakes3.go

@@ -98,6 +98,10 @@ func (g *GoFakeS3) Server() http.Handler {
 	} else if g.hostBucket {
 		handler = g.hostBucketMiddleware(handler)
 	}
+
+	if ab, ok := g.storage.(AuthenticatedBackend); ok {
+		handler = ab.AuthenticationMiddleware(handler)
+	}
 	return handler
 }
 

routing.go

@@ -31,7 +31,7 @@ func (g *GoFakeS3) routeBase(w http.ResponseWriter, r *http.Request) {
 	// perform authentication if necessary
 	ab, ok := g.storage.(AuthenticatedBackend)
 	if ok {
-		if !ab.AuthenticateRequest(w, r, bucket) {
+		if !ab.IsAuthenticated(w, r, bucket) {
 			return // unable to authenticate
 		}
 	}