8460: Send selected old/new attributes with v0 events.

diff --git a/services/ws/session_v0.go b/services/ws/session_v0.go
index 467d156ee59dadf2a4198659572d3e09e06e96e1..3894e30314461c77cb89467fbef35cc8abd6d87f 100644 (file)
--- a/services/ws/session_v0.go
+++ b/services/ws/session_v0.go
@@ -12,6 +12,8 @@ import (
 var (
        errQueueFull   = errors.New("client queue full")
        errFrameTooBig = errors.New("frame too big")
+
+       sendObjectAttributes = []string{"state", "name"}
 )
 
 type sessionV0 struct {
@@ -136,6 +138,22 @@ func (sess *sessionV0) EventMessage(e *event) ([]byte, error) {
        }
        if detail.Properties != nil && detail.Properties["text"] != nil {
                msg["properties"] = detail.Properties
+       } else {
+               msgProps := map[string]map[string]interface{}{}
+               for _, ak := range []string{"old_attributes", "new_attributes"} {
+                       eventAttrs, ok := detail.Properties[ak].(map[string]interface{})
+                       if !ok {
+                               continue
+                       }
+                       msgAttrs := map[string]interface{}{}
+                       for _, k := range sendObjectAttributes {
+                               if v, ok := eventAttrs[k]; ok {
+                                       msgAttrs[k] = v
+                               }
+                       }
+                       msgProps[ak] = msgAttrs
+               }
+               msg["properties"] = msgProps
        }
        return json.Marshal(msg)
 }