AV-214769 TKG-29234 Refreshing the csrf token and session id in case of 419 errors.

Author: Rohan Suryawanshi

go/session/avisession.go

@@ -859,7 +859,12 @@ func (avisess *AviSession) restRequest(verb string, uri string, payload interfac
 				return nil, err
 			}
 			retryReq = true
-		} else if resp.StatusCode == 419 || (resp.StatusCode >= 500 && resp.StatusCode < 599) {
+		} else if resp.StatusCode == 419 {
+			avisess.collectCookiesFromResp(resp)
+			resp.Body.Close()
+			retryReq = true
+			glog.Infof("Retrying url: %s; retry: %d due to Status Code %d", url, retry, resp.StatusCode)
+		} else if resp.StatusCode >= 500 && resp.StatusCode < 599 {
 			resp.Body.Close()
 			retryReq = true
 			glog.Infof("Retrying url: %s; retry: %d due to Status Code %d", url, retry, resp.StatusCode)