/// <summary>
/// Parses entity and it's child entities.
/// </summary>
internal void Parse(string text)
{
StringReader r = new StringReader(text);
r.ReadToFirstChar();
// If starts with ( then multipart/xxx, otherwise normal single part entity
if (r.StartsWith("("))
{
// Entities are (entity1)(entity2)(...) <SP> ContentTypeSubType
while (r.StartsWith("("))
{
IMAP_BODY_Entity entity = new IMAP_BODY_Entity();
entity.Parse(r.ReadParenthesized());
entity.m_pParentEntity = this;
m_pChildEntities.Add(entity);
r.ReadToFirstChar();
}
// Read multipart values. (nestedMimeEntries) contentTypeSubMediaType
string contentTypeSubMediaType = r.ReadWord();
m_pContentType = MimeUtils.ParseMediaType("multipart/" + contentTypeSubMediaType);
}
else
{
// Basic fields for non-multipart
// contentTypeMainMediaType contentTypeSubMediaType (conentTypeParameters) contentID contentDescription contentEncoding contentSize [envelope] [contentLine]
// Content-Type
string contentTypeMainMediaType = r.ReadWord();
string contentTypeSubMediaType = r.ReadWord();
if (contentTypeMainMediaType.ToUpper() != "NIL" && contentTypeSubMediaType.ToUpper() != "NIL")
{
m_pContentType =
MimeUtils.ParseMediaType(contentTypeMainMediaType + "/" + contentTypeSubMediaType);
}
// Content-Type header field parameters
// Parameters syntax: "name" <SP> "value" <SP> "name" <SP> "value" <SP> ... .
r.ReadToFirstChar();
string conentTypeParameters = "NIL";
if (r.StartsWith("("))
{
conentTypeParameters = r.ReadParenthesized();
StringReader contentTypeParamReader =
new StringReader(MimeUtils.DecodeWords(conentTypeParameters));
List <HeaderFieldParameter> parameters = new List <HeaderFieldParameter>();
while (contentTypeParamReader.Available > 0)
{
string parameterName = contentTypeParamReader.ReadWord();
string parameterValue = contentTypeParamReader.ReadWord();
parameters.Add(new HeaderFieldParameter(parameterName, parameterValue));
}
m_pContentTypeParams = parameters.ToArray();
}
else
{
// Skip NIL
r.ReadWord();
}
// Content-ID:
string contentID = r.ReadWord();
if (contentID.ToUpper() != "NIL")
{
m_ContentID = contentID;
}
// Content-Description:
string contentDescription = r.ReadWord();
if (contentDescription.ToUpper() != "NIL")
{
m_ContentDescription = contentDescription;
}
// Content-Transfer-Encoding:
string contentEncoding = r.ReadWord();
if (contentEncoding.ToUpper() != "NIL")
{
m_ContentEncoding = MimeUtils.ParseContentTransferEncoding(contentEncoding);
}
// Content Encoded data size in bytes
string contentSize = r.ReadWord();
if (contentSize.ToUpper() != "NIL")
{
m_ContentSize = Convert.ToInt32(contentSize);
}
// Only for ContentType message/rfc822
if (ContentType == MediaType_enum.Message_rfc822)
{
r.ReadToFirstChar();
// envelope
if (r.StartsWith("("))
{
m_pEnvelope = new IMAP_Envelope();
m_pEnvelope.Parse(r.ReadParenthesized());
}
else
{
// Skip NIL, ENVELOPE wasn't included
r.ReadWord();
}
// TODO:
// BODYSTRUCTURE
// contentLine
}
// Only for ContentType text/xxx
if (contentTypeMainMediaType.ToLower() == "text")
{
// contentLine
string contentLines = r.ReadWord();
if (contentLines.ToUpper() != "NIL")
{
m_ContentLines = Convert.ToInt32(contentLines);
}
}
}
}