[v10.2.x] Plugins: Fix status_source always being "plugin" in plugin request logs (#77436)

Plugins: Fix status_source always being "plugin" in plugin request logs (#77433)

* Plugins: Fix status_source always being "plugin" in plugin logs

* add tests

* Fix TestInstrumentationMiddlewareStatusSource

(cherry picked from commit 46261de32d)

Co-authored-by: Giuseppe Guerra <giuseppe.guerra@grafana.com>

pkg/services/pluginsintegration/clientmiddleware/plugin_request_meta_middleware.go

@@ -0,0 +1,69 @@
+package clientmiddleware
+
+import (
+	"context"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend"
+
+	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/plugins/pluginrequestmeta"
+)
+
+// NewPluginRequestMetaMiddleware returns a new plugins.ClientMiddleware that sets up the default
+// values for the plugin request meta in the context.Context. All middlewares that are executed
+// after this one are be able to access plugin request meta via the pluginrequestmeta package.
+func NewPluginRequestMetaMiddleware() plugins.ClientMiddleware {
+	return plugins.ClientMiddlewareFunc(func(next plugins.Client) plugins.Client {
+		return &PluginRequestMetaMiddleware{
+			next:                next,
+			defaultStatusSource: pluginrequestmeta.StatusSourcePlugin,
+		}
+	})
+}
+
+type PluginRequestMetaMiddleware struct {
+	next                plugins.Client
+	defaultStatusSource pluginrequestmeta.StatusSource
+}
+
+func (m *PluginRequestMetaMiddleware) withDefaultPluginRequestMeta(ctx context.Context) context.Context {
+	// Setup plugin request status source
+	ctx = pluginrequestmeta.WithStatusSource(ctx, m.defaultStatusSource)
+
+	return ctx
+}
+
+func (m *PluginRequestMetaMiddleware) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error) {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.QueryData(ctx, req)
+}
+
+func (m *PluginRequestMetaMiddleware) CallResource(ctx context.Context, req *backend.CallResourceRequest, sender backend.CallResourceResponseSender) error {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.CallResource(ctx, req, sender)
+}
+
+func (m *PluginRequestMetaMiddleware) CheckHealth(ctx context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error) {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.CheckHealth(ctx, req)
+}
+
+func (m *PluginRequestMetaMiddleware) CollectMetrics(ctx context.Context, req *backend.CollectMetricsRequest) (*backend.CollectMetricsResult, error) {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.CollectMetrics(ctx, req)
+}
+
+func (m *PluginRequestMetaMiddleware) SubscribeStream(ctx context.Context, req *backend.SubscribeStreamRequest) (*backend.SubscribeStreamResponse, error) {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.SubscribeStream(ctx, req)
+}
+
+func (m *PluginRequestMetaMiddleware) PublishStream(ctx context.Context, req *backend.PublishStreamRequest) (*backend.PublishStreamResponse, error) {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.PublishStream(ctx, req)
+}
+
+func (m *PluginRequestMetaMiddleware) RunStream(ctx context.Context, req *backend.RunStreamRequest, sender *backend.StreamSender) error {
+	ctx = m.withDefaultPluginRequestMeta(ctx)
+	return m.next.RunStream(ctx, req, sender)
+}