public bool ContainsStatus(SmtpCode status)
{
if (this.Values.Count == 0)
{
return(false);
}
return(this.Values.Any(kvp => kvp.Key == status));
}
/// <summary>
/// Determines whether the SMTP response contains the specified status code.
/// </summary>
/// <param name="status">The SMTP code to check.</param>
/// <returns>True if the response contains the code. False otherwise.</returns>
public bool Contains(SmtpCode status)
{
if (Values.Count == 0)
{
return false;
}
return Values.Any(kvp => kvp.Key == status);
}
private async Task <SmtpResponse> GetResponse(string from)
{
SmtpResponse response = new SmtpResponse();
bool isStartingLine = true;
StringBuilder stringBuilder = null;
int charLen = 3;
Boolean endOfStream = false;
SmtpCode code = SmtpCode.None;
string codeStr = string.Empty;
try
{
stringBuilder = new StringBuilder();
while (!endOfStream)
{
// There is a Strange behavior when the bufferLength is exactly the same size as the inputStream
await reader.LoadAsync(bufferLength);
charLen = Math.Min((int)reader.UnconsumedBufferLength, bufferLength);
if (charLen == 0)
{
endOfStream = true;
break;
}
// If charLen < bufferLength, it's end of stream
if (charLen < bufferLength)
{
endOfStream = true;
}
// get the current position
int charPos = 0;
// Read the buffer
byte[] buffer = new byte[charLen];
reader.ReadBytes(buffer);
do
{
// get the character
char chr = (char)buffer[charPos];
// if it's starting point, we can read the first 3 chars.
if (isStartingLine)
{
codeStr += chr;
// Get the code
if (codeStr.Length == 3)
{
int codeInt;
if (int.TryParse(codeStr, out codeInt))
{
code = (SmtpCode)codeInt;
}
// next
isStartingLine = false;
}
}
else if (chr == '\r' || chr == '\n')
{
// Advance 1 byte to get the '\n' if not at the end of the buffer
if (chr == '\r' && charPos < (charLen - 1))
{
charPos++;
chr = (char)buffer[charPos];
}
if (chr == '\n')
{
KeyValuePair <SmtpCode, String> r = new KeyValuePair <SmtpCode, string>
(code, stringBuilder.ToString());
response.Values.Add(r);
_logHelper.Log(LogLevel.Trace, $"{((int)code).ToString()} {stringBuilder.ToString()}");
stringBuilder = new StringBuilder();
code = SmtpCode.None;
codeStr = string.Empty;
isStartingLine = true;
}
}
else
{
stringBuilder.Append(chr);
}
charPos++;
} while (charPos < charLen);
}
}
catch (Exception ex)
{
_logHelper.Log(LogLevel.Error, ex.Message);
Debug.WriteLine(ex.Message);
throw;
}
return(response);
}
