public static void ConstructParts(StructureBuilder builder, MIME_Entity entity, bool includeExtensions)
{
var wordEncoder = new MIME_Encoding_EncodedWord(MIME_EncodedWordEncoding.B, Encoding.UTF8);
wordEncoder.Split = false;
if (entity.Body is MIME_b_Multipart)
{
// Recursive build for multipart
builder.StartBracket();
foreach (MIME_Entity child in ((MIME_b_Multipart)entity.Body).BodyParts)
{
ConstructParts(builder, child, includeExtensions);
}
if (entity.ContentType != null && entity.ContentType.SubType != null)
{
builder.SpaceNQuoted(entity.ContentType.SubType.ToUpperInvariant());
}
else
{
builder.AppendQuoted("PLAIN");
}
if (includeExtensions)
{
// conentTypeParameters - Syntax: {("name" SP "value" *(SP "name" SP "value"))}
ConstructTypeParameters(builder, entity, wordEncoder);
// body disposition Syntax: {(disposition-type [ SP ("name" SP "value" *(SP "name" SP "value"))])}
ConstructBodyDisposition(builder, entity, wordEncoder);
// body language
builder.AppendNil();
// body location
builder.AppendNil();
}
builder.Append(")");
}
else
{
ConstructSinglePart(builder, entity, wordEncoder, includeExtensions);
}
}
public static void ConstructBodyDisposition(StructureBuilder builder, MIME_Entity entity, MIME_Encoding_EncodedWord wordEncoder)
{
if (entity.ContentDisposition != null && entity.ContentDisposition.Parameters.Count > 0)
{
builder.SpaceNBracket().AppendQuoted(entity.ContentDisposition.DispositionType.ToUpperInvariant());
if (entity.ContentDisposition.Parameters.Count > 0)
{
builder.SpaceNBracket();
bool first = true;
foreach (MIME_h_Parameter parameter in entity.ContentDisposition.Parameters)
{
if (String.IsNullOrEmpty(parameter.Name))
{
continue;
}
// For the first item, don't add SP.
if (first)
{
first = false;
}
else
{
builder.Append(" ");
}
builder.AppendQuoted(parameter.Name.ToUpperInvariant()).SpaceNQuoted(wordEncoder.Encode(parameter.Value));
}
builder.EndBracket();
}
else
{
builder.AppendNil();
}
builder.EndBracket();
}
else
{
builder.AppendNil();
}
}
public static void ConstructSinglePart(StructureBuilder builder, MIME_Entity entity, MIME_Encoding_EncodedWord wordEncoder, bool includeExtensions)
{
builder.Append("(");
// NOTE: all header fields and parameters must in ENCODED form !!!
// Add contentTypeMainMediaType
if (entity.ContentType != null && entity.ContentType.Type != null)
{
builder.AppendQuoted(entity.ContentType.Type.ToUpperInvariant());
}
else
{
builder.AppendQuoted("TEXT");
}
// Add contentTypeSubMediaType
if (entity.ContentType != null && entity.ContentType.SubType != null)
{
builder.SpaceNQuoted(entity.ContentType.SubType.ToUpperInvariant());
}
else
{
builder.SpaceNQuoted("PLAIN");
}
// conentTypeParameters - Syntax: {("name" SP "value" *(SP "name" SP "value"))}
ConstructTypeParameters(builder, entity, wordEncoder);
// contentID
string contentID = entity.ContentID;
if (contentID != null)
{
builder.SpaceNQuoted(wordEncoder.Encode(contentID));
}
else
{
builder.AppendNil();
}
// contentDescription
string contentDescription = entity.ContentDescription;
if (contentDescription != null)
{
builder.SpaceNQuoted(wordEncoder.Encode(contentDescription));
}
else
{
builder.AppendNil();
}
// contentEncoding
if (entity.ContentTransferEncoding != null)
{
builder.SpaceNQuoted(entity.ContentTransferEncoding.ToUpperInvariant());
}
else
{
// If not specified, then must be 7bit.
builder.SpaceNQuoted("7bit");
}
// contentSize
if (entity.Body is MIME_b_SinglepartBase)
{
builder.Append(" ").Append(((MIME_b_SinglepartBase)entity.Body).EncodedData.Length.ToString());
}
else
{
builder.Append(" 0");
}
// envelope --->FOR ContentType: message / rfc822 ONLY ###
if (entity.Body is MIME_b_MessageRfc822)
{
builder.Append(" ");
ENVELOPE.ConstructEnvelope(builder, ((MIME_b_MessageRfc822)entity.Body).Message);
// BODYSTRUCTURE
builder.AppendNil();
// LINES
builder.AppendNil();
}
// contentLines ---> FOR ContentType: text/xxx ONLY ###
if (entity.Body is MIME_b_Text)
{
builder.Append(" ").Append(GetLines(entity).ToString());
}
#region BODYSTRUCTURE extention fields
if (includeExtensions)
{
// body MD5
builder.AppendNil();
// body disposition Syntax: {(disposition-type [ SP ("name" SP "value" *(SP "name" SP "value"))])}
ConstructBodyDisposition(builder, entity, wordEncoder);
// body language
builder.AppendNil();
// body location
builder.AppendNil();
}
#endregion
builder.EndBracket();
}