ContextHandler: unexport cfg (grafana#101396)

pkg/services/contexthandler/contexthandler.go

@@ -29,15 +29,15 @@ import (
 func ProvideService(cfg *setting.Cfg, authenticator authn.Authenticator, features featuremgmt.FeatureToggles,
 ) *ContextHandler {
 	return &ContextHandler{
-		Cfg:           cfg,
+		cfg:           cfg,
 		authenticator: authenticator,
 		features:      features,
 	}
 }
 
 // ContextHandler is a middleware.
 type ContextHandler struct {
-	Cfg           *setting.Cfg
+	cfg           *setting.Cfg
 	authenticator authn.Authenticator
 	features      featuremgmt.FeatureToggles
 }
@@ -104,7 +104,7 @@ func (h *ContextHandler) Middleware(next http.Handler) http.Handler {
 		// inject ReqContext in the context
 		ctx = context.WithValue(ctx, reqContextKey{}, reqContext)
 		// store list of possible auth header in context
-		ctx = WithAuthHTTPHeaders(ctx, h.Cfg)
+		ctx = WithAuthHTTPHeaders(ctx, h.cfg)
 		// Set the context for the http.Request.Context
 		// This modifies both r and reqContext.Req since they point to the same value
 		*reqContext.Req = *reqContext.Req.WithContext(ctx)
@@ -137,7 +137,7 @@ func (h *ContextHandler) Middleware(next http.Handler) http.Handler {
 			attribute.Int64("userId", reqContext.UserID),
 		))
 
-		if h.Cfg.IDResponseHeaderEnabled && reqContext.SignedInUser != nil {
+		if h.cfg.IDResponseHeaderEnabled && reqContext.SignedInUser != nil {
 			reqContext.Resp.Before(h.addIDHeaderEndOfRequestFunc(reqContext.SignedInUser))
 		}
 
@@ -167,11 +167,11 @@ func (h *ContextHandler) addIDHeaderEndOfRequestFunc(ident identity.Requester) w
 			return
 		}
 
-		if _, ok := h.Cfg.IDResponseHeaderNamespaces[string(ident.GetIdentityType())]; !ok {
+		if _, ok := h.cfg.IDResponseHeaderNamespaces[string(ident.GetIdentityType())]; !ok {
 			return
 		}
 
-		headerName := fmt.Sprintf("%s-Identity-Id", h.Cfg.IDResponseHeaderPrefix)
+		headerName := fmt.Sprintf("%s-Identity-Id", h.cfg.IDResponseHeaderPrefix)
 		w.Header().Add(headerName, ident.GetID())
 	}
 }