create a logger interface and use it everywhere

internal/handshake/tls_extension_handler_client.go

@@ -19,6 +19,8 @@ type extensionHandlerClient struct {
 	initialVersion    protocol.VersionNumber
 	supportedVersions []protocol.VersionNumber
 	version           protocol.VersionNumber
+
+	logger utils.Logger
 }
 
 var _ mint.AppExtensionHandler = &extensionHandlerClient{}
@@ -30,6 +32,7 @@ func NewExtensionHandlerClient(
 	initialVersion protocol.VersionNumber,
 	supportedVersions []protocol.VersionNumber,
 	version protocol.VersionNumber,
+	logger utils.Logger,
 ) TLSExtensionHandler {
 	// The client reads the transport parameters from the Encrypted Extensions message.
 	// The paramsChan is used in the session's run loop's select statement.
@@ -41,6 +44,7 @@ func NewExtensionHandlerClient(
 		initialVersion:    initialVersion,
 		supportedVersions: supportedVersions,
 		version:           version,
+		logger:            logger,
 	}
 }
 
@@ -49,7 +53,7 @@ func (h *extensionHandlerClient) Send(hType mint.HandshakeType, el *mint.Extensi
 		return nil
 	}
 
-	utils.Debugf("Sending Transport Parameters: %s", h.ourParams)
+	h.logger.Debugf("Sending Transport Parameters: %s", h.ourParams)
 	data, err := syntax.Marshal(clientHelloTransportParameters{
 		InitialVersion: uint32(h.initialVersion),
 		Parameters:     h.ourParams.getTransportParameters(),
@@ -122,7 +126,7 @@ func (h *extensionHandlerClient) Receive(hType mint.HandshakeType, el *mint.Exte
 	if err != nil {
 		return err
 	}
-	utils.Debugf("Received Transport Parameters: %s", params)
+	h.logger.Debugf("Received Transport Parameters: %s", params)
 	h.paramsChan <- *params
 	return nil
 }