package scope import "strings" const ( // Scope prefix which indicates initiation of a cross-client authentication flow. // See https://developers.google.com/identity/protocols/CrossClientAuth ScopeGoogleCrossClient = "audience:server:client_id:" ) type Scopes []string func (s Scopes) OfflineAccess() bool { return s.HasScope("offline_access") } func (s Scopes) HasScope(scope string) bool { for _, curScope := range s { if curScope == scope { return true } } return false } func (s Scopes) CrossClientIDs() []string { clients := []string{} for _, scope := range s { if strings.HasPrefix(scope, ScopeGoogleCrossClient) { clients = append(clients, scope[len(ScopeGoogleCrossClient):]) } } return clients } func (s Scopes) Contains(other Scopes) bool { rScopes := map[string]struct{}{} for _, scope := range s { rScopes[scope] = struct{}{} } for _, scope := range other { if _, ok := rScopes[scope]; !ok { if scope == "" { continue } return false } } return true }