refact: some refactoring to proxy modules

session/session.go

@@ -2,6 +2,7 @@ package session
 
 import (
 	"bufio"
+	"errors"
 	"fmt"
 	"os"
 	"os/signal"
@@ -20,6 +21,9 @@ import (
 
 var (
 	I = (*Session)(nil)
+
+	ErrAlreadyStarted = errors.New("Module is already running.")
+	ErrAlreadyStopped = errors.New("Module is not running.")
 )
 
 type Session struct {

session/session_core_handlers.go

@@ -89,6 +89,10 @@ func (s *Session) activeHandler(args []string, sess *Session) error {
 }
 
 func (s *Session) exitHandler(args []string, sess *Session) error {
+	for _, mod := range s.Modules {
+		mod.Stop()
+	}
+
 	s.Active = false
 	s.Input.Close()
 	return nil