--- /dev/null
+#ifndef MSP_HTTP_SUBMESSAGE_H_
+#define MSP_HTTP_SUBMESSAGE_H_
+
+#include "message.h"
+
+namespace Msp {
+namespace Http {
+
+class SubMessage: public Message
+{
+private:
+ SubMessage() { }
+
+public:
+ virtual std::string str() const;
+
+ static SubMessage parse(const std::string &);
+};
+
+} // namespace Http
+} // namespace Msp
+
+#endif