permission.go
func (permission Permission) HasPermission(mode PermissionMode, roles ...interface{}) bool {
	var roleNames []string
	for _, role := range roles {
		if r, ok := role.(string); ok {
			roleNames = append(roleNames, r)
		} else if roler, ok := role.(Roler); ok {
			roleNames = append(roleNames, roler.GetRoles()...)
		} else {
			fmt.Printf("invalid role %#v\n", role)
			return false
		}
	}

	if len(permission.DeniedRoles) != 0 {
		if DeniedRoles := permission.DeniedRoles[mode]; DeniedRoles != nil {
			if includeRoles(DeniedRoles, roleNames) {
				return false
			}
		}
	}

	// return true if haven't define allowed roles
	if len(permission.AllowedRoles) == 0 {
		return true
	}

	if AllowedRoles := permission.AllowedRoles[mode]; AllowedRoles != nil {
		if includeRoles(AllowedRoles, roleNames) {
			return true
		}
	}

	return false
}
func (permission Permission) HasPermission(mode PermissionMode, roles ...interface{}) bool {
	var roleNames []string
	for _, role := range roles {
		if r, ok := role.(string); ok {
			roleNames = append(roleNames, r)
		} else if roler, ok := role.(Roler); ok {
			roleNames = append(roleNames, roler.GetRoles()...)
		} else {
			fmt.Printf("invalid role %#v\n", role)
			return false
		}
	}

	if len(permission.DeniedRoles) != 0 {
		if DeniedRoles := permission.DeniedRoles[mode]; DeniedRoles != nil {
			if includeRoles(DeniedRoles, roleNames) {
				return false
			}
		}
	}

	// return true if haven't define allowed roles
	if len(permission.AllowedRoles) == 0 {
		return true
	}

	if AllowedRoles := permission.AllowedRoles[mode]; AllowedRoles != nil {
		if includeRoles(AllowedRoles, roleNames) {
			return true
		}
	}

	return false
}
// HasPermission check roles has permission for mode or not