Log in CTL client not API handler

Removes CTL related logging from the API handler and pushes it
over to the CTL client.

Signed-off-by: Nathan Smith <nathan@nfsmith.ca>

cmd/app/serve.go

@@ -174,6 +174,7 @@ func runServeCmd(cmd *cobra.Command, args []string) {
 	var ctClient ctl.Client
 	if logURL := viper.GetString("ct-log-url"); logURL != "" {
 		ctClient = ctl.New(logURL)
+		ctClient = ctl.WithLogging(ctClient, log.Logger)
 	}
 
 	var handler http.Handler

pkg/api/ca.go

@@ -174,7 +174,6 @@ func (a *api) signingCert(w http.ResponseWriter, req *http.Request) {
 		}
 
 		// Submit to CTL
-		logger.Info("Submitting CTL inclusion for OIDC grant: ", subject.Value)
 		if a.ct != nil {
 			sct, err := a.ct.AddChain(csc)
 			if err != nil {
@@ -186,8 +185,6 @@ func (a *api) signingCert(w http.ResponseWriter, req *http.Request) {
 				handleFulcioAPIError(w, req, http.StatusInternalServerError, err, failedToMarshalSCT)
 				return
 			}
-			logger.Info("CTL Submission Signature Received: ", sct.Signature)
-			logger.Info("CTL Submission ID Received: ", sct.ID)
 		} else {
 			logger.Info("Skipping CT log upload.")
 		}