internal static string GetHeaderParameter(ComplexHeader header, string parameterName, int lengthLimit)
{
if (header == null)
{
return(null);
}
MimeParameter mimeParameter = header[parameterName];
if (mimeParameter == null)
{
return(null);
}
string text = null;
try
{
text = mimeParameter.Value;
}
catch (InvalidCharsetException)
{
StorageGlobals.ContextTraceDebug <string, string>(ExTraceGlobals.CcInboundMimeTracer, "InboundMimeConverter::GetHeaderParameter: Header[{0},{1}].Value throws InvalidCharsetException", header.Name, parameterName);
return(null);
}
if (text != null && text.Length > lengthLimit)
{
StorageGlobals.ContextTraceDebug <string, string, int>(ExTraceGlobals.CcInboundMimeTracer, "InboundMimeConverter::GetHeaderParameter: Header[{0},{1}].Value exceeds length limit ({2})", header.Name, parameterName, lengthLimit);
return(null);
}
return(text);
}
internal static MimePart CreateBodyPart(string type, string charsetName)
{
MimePart mimePart = new MimePart();
ContentTypeHeader contentTypeHeader = new ContentTypeHeader(type);
MimeParameter newChild = new MimeParameter("charset", charsetName);
contentTypeHeader.AppendChild(newChild);
mimePart.Headers.AppendChild(contentTypeHeader);
return(mimePart);
}
internal static string GetParameterValue(ComplexHeader header, string parameterName)
{
string result = null;
MimeParameter mimeParameter = header[parameterName];
if (mimeParameter != null)
{
DecodingResults decodingResults;
mimeParameter.TryGetValue(Utility.DecodeOrFallBack, out decodingResults, out result);
return(result);
}
return(result);
}
internal void WriteHeaderParameter(string parameterName, string parameterValue)
{
if (this.hasAllHeaders)
{
return;
}
ComplexHeader complexHeader = (ComplexHeader)this.currentHeader;
MimeParameter mimeParameter = complexHeader[parameterName];
if (mimeParameter == null)
{
mimeParameter = new MimeParameter(parameterName);
complexHeader.AppendChild(mimeParameter);
}
mimeParameter.Value = parameterValue;
}
internal static void StoreFileNameInHeader(MimePart attachmentPart, HeaderId headerId, GetDefaultValue getDefaultValue, string parameterName, string value)
{
ComplexHeader complexHeader = attachmentPart.Headers.FindFirst(headerId) as ComplexHeader;
if (complexHeader == null)
{
complexHeader = (Header.Create(headerId) as ComplexHeader);
complexHeader.Value = getDefaultValue();
attachmentPart.Headers.AppendChild(complexHeader);
}
MimeParameter mimeParameter = complexHeader[parameterName];
if (mimeParameter == null)
{
mimeParameter = new MimeParameter(parameterName);
complexHeader.AppendChild(mimeParameter);
}
mimeParameter.Value = value;
}
internal static Charset GetCharsetFromMime(MimePart part)
{
Charset result = Charset.ASCII;
Header header = part.Headers.FindFirst(HeaderId.ContentType);
if (header != null)
{
MimeParameter mimeParameter = (header as ComplexHeader)["charset"];
if (mimeParameter != null)
{
Charset charset = null;
if (Charset.TryGetCharset(mimeParameter.Value, out charset))
{
result = charset;
}
}
}
return(result);
}
internal static void SetParameterValue(MimePart part, HeaderId headerId, string parameterName, string value)
{
ComplexHeader complexHeader = part.Headers.FindFirst(headerId) as ComplexHeader;
if (complexHeader == null)
{
complexHeader = (Header.Create(headerId) as ComplexHeader);
complexHeader.AppendChild(new MimeParameter(parameterName, value));
part.Headers.AppendChild(complexHeader);
return;
}
MimeParameter mimeParameter = complexHeader[parameterName];
if (mimeParameter != null)
{
mimeParameter.Value = value;
return;
}
complexHeader.AppendChild(new MimeParameter(parameterName, value));
}
