internal static string BuildErrorResponse(ConnectionErrorResult error, string httpVersion)
{
return(error switch
{
ConnectionErrorResult.AuthenticationError => $"{httpVersion} 401 Unauthorized\r\n\r\n",
ConnectionErrorResult.HostUnreachable => $"{httpVersion} 502 {error}\r\n\r\n",
ConnectionErrorResult.ConnectionRefused => $"{httpVersion} 502 {error}\r\n\r\n",
ConnectionErrorResult.ConnectionReset => $"{httpVersion} 502 {error}\r\n\r\n",
_ => $"{httpVersion} 500 Internal Server Error\r\nX-Proxy-Error-Type: {error}\r\n\r\n"
});
private static async ValueTask SendErrorAsync(PipeWriter writer, ConnectionErrorResult error, string httpVersion = @"HTTP/1.1", CancellationToken token = default)
{
string str = BuildErrorResponse(error, httpVersion);
await writer.WriteAsync(str, token);
}
