/// <summary>
/// Returns a <see cref="System.String" /> that represents this instance.
/// </summary>
/// <returns>
/// A <see cref="System.String" /> that represents this instance.
/// </returns>
public override string ToString()
{
var head = $";; ->>HEADER<<- opcode: {OPCode}, status: {DnsResponseCodeText.GetErrorText(ResponseCode)}, id: {Id}";
var flags = new string[] {
HasQuery ? "qr" : "",
HasAuthorityAnswer ? "aa" : "",
RecursionDesired ? "rd" : "",
RecursionAvailable ? "ra" : "",
ResultTruncated ? "tc" : "",
IsCheckingDisabled ? "cd" : "",
IsAuthenticData ? "ad" : ""
};
var flagsString = string.Join(" ", flags.Where(p => p != ""));
return $"{head}\r\n;; flags: {flagsString}; QUERY: {QuestionCount}, " +
$"ANSWER: {AnswerCount}, AUTORITY: {NameServerCount}, ADDITIONAL: {AdditionalCount}";
}
public void AuditException(Exception ex)
{
var aggEx = ex as AggregateException;
if (ex is DnsResponseException dnsEx)
{
_auditWriter.AppendLine($";; Error: {DnsResponseCodeText.GetErrorText(dnsEx.Code)} {dnsEx.InnerException?.Message ?? dnsEx.Message}");
}
else if (aggEx != null)
{
_auditWriter.AppendLine($";; Error: {aggEx.InnerException?.Message ?? aggEx.Message}");
}
else
{
_auditWriter.AppendLine($";; Error: {ex.Message}");
}
if (Debugger.IsAttached)
{
_auditWriter.AppendLine(ex.ToString());
}
}
public void AuditResponseError(DnsResponseCode responseCode)
{
_auditWriter.AppendLine($";; ERROR: {DnsResponseCodeText.GetErrorText(responseCode)}");
}
/// <summary>
/// Initializes a new instance of the <see cref="DnsResponseException"/> class
/// with a custom <paramref name="message"/> and the given <paramref name="code"/>.
/// </summary>
public DnsResponseException(DnsResponseCode code, string message, Exception innerException) : base(message, innerException)
{
Code = code;
DnsError = DnsResponseCodeText.GetErrorText(Code);
}
/// <summary>
/// Initializes a new instance of the <see cref="DnsResponseException"/> class
/// with <see cref="Code"/> set to <see cref="DnsResponseCode.Unassigned"/>
/// and a custom <paramref name="message"/> and inner <see cref="Exception"/>.
/// </summary>
public DnsResponseException(string message, Exception innerException) : base(message, innerException)
{
Code = DnsResponseCode.Unassigned;
DnsError = DnsResponseCodeText.GetErrorText(Code);
}
/// <summary>
/// Initializes a new instance of the <see cref="DnsResponseException"/> class
/// with the standard error text for the given <paramref name="code"/>.
/// </summary>
public DnsResponseException(DnsResponseCode code) : base(DnsResponseCodeText.GetErrorText(code))
{
Code = code;
DnsError = DnsResponseCodeText.GetErrorText(Code);
}
/// <summary>
/// Initializes a new instance of the <see cref="DnsResponseException"/> class
/// with <see cref="Code"/> set to <see cref="DnsResponseCode.Unassigned"/>.
/// </summary>
public DnsResponseException() : base(DnsResponseCodeText.Unassigned)
{
Code = DnsResponseCode.Unassigned;
DnsError = DnsResponseCodeText.GetErrorText(Code);
}
