IDForwarding: Require that id forwarding is enabled for data source (#77131)

* Require that id forwarding is enabled for data source

* Address feedback

pkg/services/pluginsintegration/clientmiddleware/forward_id_middleware.go

@@ -4,8 +4,12 @@ import (
 	"context"
 
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
+
+	"github.com/grafana/grafana/pkg/components/simplejson"
 	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/services/auth"
 	"github.com/grafana/grafana/pkg/services/contexthandler"
+	"github.com/grafana/grafana/pkg/services/datasources"
 )
 
 const forwardIDHeaderName = "X-Grafana-Id"
@@ -28,7 +32,16 @@ type ForwardIDMiddleware struct {
 func (m *ForwardIDMiddleware) applyToken(ctx context.Context, pCtx backend.PluginContext, req backend.ForwardHTTPHeaders) error {
 	reqCtx := contexthandler.FromContext(ctx)
 	// if request not for a datasource or no HTTP request context skip middleware
-	if req == nil || reqCtx == nil || reqCtx.SignedInUser == nil {
+	if req == nil || reqCtx == nil || reqCtx.SignedInUser == nil || pCtx.DataSourceInstanceSettings == nil {
+		return nil
+	}
+
+	jsonDataBytes, err := simplejson.NewJson(pCtx.DataSourceInstanceSettings.JSONData)
+	if err != nil {
+		return err
+	}
+
+	if !auth.IsIDForwardingEnabledForDataSource(&datasources.DataSource{JsonData: jsonDataBytes}) {
 		return nil
 	}