public override void Set(string name, string value)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (name == string.Empty)
{
throw new ArgumentException(string.Format(Strings.net_emptystringcall, nameof(name)), nameof(name));
}
if (value == string.Empty)
{
throw new ArgumentException(string.Format(Strings.net_emptystringcall, nameof(value)), nameof(name));
}
if (!MimeBasePart.IsAscii(name, false))
{
throw new FormatException(string.Format(Strings.InvalidHeaderName));
}
// normalize the case of well known headers
name = MailHeaderInfo.NormalizeCase(name);
MailHeaderID id = MailHeaderInfo.GetID(name);
value = value.Normalize(NormalizationForm.FormC);
if (id == MailHeaderID.ContentType && _part != null)
{
_part.ContentType.Set(value.ToLower(CultureInfo.InvariantCulture), this);
}
else if (id == MailHeaderID.ContentDisposition && _part is MimePart)
{
((MimePart)_part).ContentDisposition.Set(value.ToLower(CultureInfo.InvariantCulture), this);
}
else
{
base.Set(name, value);
}
}
private static void EncodeToBuffer(string value, StringBuilder builder, bool allowUnicode)
{
Encoding encoding = MimeBasePart.DecodeEncoding(value);
if (encoding != null) // Manually encoded elsewhere, pass through
{
builder.Append('"').Append(value).Append('"');
}
else if ((allowUnicode && !MailBnfHelper.HasCROrLF(value)) || // Unicode without CL or LF's
MimeBasePart.IsAscii(value, false)) // Ascii
{
MailBnfHelper.GetTokenOrQuotedString(value, builder, allowUnicode);
}
else
{
// MIME Encoding required
encoding = Encoding.GetEncoding(MimeBasePart.DefaultCharSet);
builder.Append('"').Append(MimeBasePart.EncodeHeaderValue(value, encoding, MimeBasePart.ShouldUseBase64Encoding(encoding))).Append('"');
}
}