public static string ToQuotedPrintable(this byte[] bytes)
{
if (bytes == null)
{
return(string.Empty);
}
return(QUOTED_PRINTABLE.Encode(bytes));
}
protected string EncodeQuotedPrintable(byte[] inputBytes)
{
try
{
QuotedPrintableEncoder encoder = new QuotedPrintableEncoder();
byte[] outputBytes = new byte[encoder.EstimateOutputLength(inputBytes.Length)];
int length = encoder.Encode(inputBytes, 0, inputBytes.Length, outputBytes);
return(Encoding.UTF8.GetString(outputBytes.Take(length).ToArray()));
}
catch
{
return(null);
}
}
public static string EncodeQuotedPrintableText(string text)
{
var encoder = new QuotedPrintableEncoder();
var buffer = Encoding.UTF8.GetBytes(text);
var multiplier = 3.0d;
while (true)
{
try
{
var length = (int)Math.Floor(buffer.Length * multiplier);
var output = new byte[length];
var count = encoder.Encode(buffer, 0, buffer.Length, output);
return(Encoding.ASCII.GetString(output, 0, count));
}
catch (ArgumentException)
{
multiplier *= 1.44;
}
}
}