TUN-2567: AuthOutcome can be turned back into AuthResponse

tunnelrpc/pogs/auth_outcome.go

@@ -43,6 +43,8 @@ func (ar AuthenticateResponse) Outcome() AuthOutcome {
 //go-sumtype:decl AuthOutcome
 type AuthOutcome interface {
 	isAuthOutcome()
+	// Serialize into an AuthenticateResponse which can be sent via Capnp
+	Serialize() AuthenticateResponse
 }
 
 // AuthSuccess means the backend successfully authenticated this cloudflared.
@@ -56,6 +58,14 @@ func (ao *AuthSuccess) RefreshAfter() time.Duration {
 	return hoursToTime(ao.HoursUntilRefresh)
 }
 
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthSuccess) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		Jwt:               ao.Jwt,
+		HoursUntilRefresh: ao.HoursUntilRefresh,
+	}
+}
+
 func (ao *AuthSuccess) isAuthOutcome() {}
 
 // AuthFail means this cloudflared has the wrong auth and should exit.
@@ -63,6 +73,13 @@ type AuthFail struct {
 	Err error
 }
 
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthFail) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		PermanentErr: ao.Err.Error(),
+	}
+}
+
 func (ao *AuthFail) isAuthOutcome() {}
 
 // AuthUnknown means the backend couldn't finish checking authentication. Try again later.
@@ -76,6 +93,14 @@ func (ao *AuthUnknown) RefreshAfter() time.Duration {
 	return hoursToTime(ao.HoursUntilRefresh)
 }
 
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthUnknown) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		RetryableErr:      ao.Err.Error(),
+		HoursUntilRefresh: ao.HoursUntilRefresh,
+	}
+}
+
 func (ao *AuthUnknown) isAuthOutcome() {}
 
 func hoursToTime(hours uint8) time.Duration {