gasper changes for gctltoken generation

Author: ZainulNiaz

package-lock.json

@@ -34,6 +34,19 @@ func authenticator(c *gin.Context) (interface{}, error) {
 	return user, nil
 }
 
+func authenticatorForGctl(c *gin.Context) (interface{}, error) {
+	auth := &types.Login{}
+	if err := c.ShouldBind(auth); err != nil {
+		return nil, errMissingCredentials
+	}
+	user, err := mongo.FetchSingleUser(auth.GetEmail())
+	if err != nil || user == nil {
+		return nil, errFailedAuthentication
+	}
+
+	return user, nil
+}
+
 func payloadFunc(data interface{}) jwt.MapClaims {
 	if user, ok := data.(*types.User); ok {
 		return jwt.MapClaims{
@@ -157,7 +170,7 @@ var JWTGctl = &jwt.GinJWTMiddleware{
 	TokenLookup:     "header: Authorization",
 	TokenHeadName:   "gctlToken",
 	TimeFunc:        time.Now,
-	Authenticator:   authenticator,
+	Authenticator:   authenticatorForGctl,
 	PayloadFunc:     payloadFuncForGctl,
 	IdentityHandler: identityHandlerForGctl,
 	Authorizator:    authorizatorForGctl,

services/master/middlewares/jwt.go

@@ -55,6 +55,7 @@ func NewService() http.Handler {
 		auth.PUT("/revoke", c.RevokeToken)
 	}
 
+	auth.POST("/gctltoken", m.AuthRequired(), m.LoginHandler)
 	router.GET("/instances", m.AuthRequired(), c.FetchAllInstancesByUser)
 	router.POST("/gctllogin", m.JWTGctl.MiddlewareFunc(), c.GctlLogin)