const bool MDNHelper::isMDN(const ref <const message> msg)
{
const ref <const header> hdr = msg->getHeader();
// A MDN message implies the following:
// - a Content-Type field is present and its value is "multipart/report"
// - a "report-type" parameter is present in the Content-Type field,
// and its value is "disposition-notification"
if (hdr->hasField(fields::CONTENT_TYPE))
{
const contentTypeField& ctf = *(hdr->ContentType()
.dynamicCast <const contentTypeField>());
const mediaType type = *ctf.getValue().dynamicCast <const mediaType>();
if (type.getType() == vmime::mediaTypes::MULTIPART &&
type.getSubType() == vmime::mediaTypes::MULTIPART_REPORT)
{
if (ctf.hasParameter("report-type") &&
ctf.getReportType() == "disposition-notification")
{
return (true);
}
}
}
return (false);
}
bool htmlTextPart::findPlainTextPart(const bodyPart& part, const bodyPart& parent, const bodyPart& textPart)
{
// We search for the nearest "multipart/alternative" part.
const shared_ptr <const headerField> ctf =
part.getHeader()->findField(fields::CONTENT_TYPE);
if (ctf)
{
const mediaType type = *ctf->getValue <mediaType>();
if (type.getType() == mediaTypes::MULTIPART &&
type.getSubType() == mediaTypes::MULTIPART_ALTERNATIVE)
{
shared_ptr <const bodyPart> foundPart;
for (size_t i = 0 ; i < part.getBody()->getPartCount() ; ++i)
{
const shared_ptr <const bodyPart> p = part.getBody()->getPartAt(i);
if (p.get() == &parent || // if "text/html" is in "multipart/related"
p.get() == &textPart) // if not...
{
foundPart = p;
}
}
if (foundPart)
{
bool found = false;
// Now, search for the alternative plain text part
for (size_t i = 0 ; !found && i < part.getBody()->getPartCount() ; ++i)
{
const shared_ptr <const bodyPart> p = part.getBody()->getPartAt(i);
const shared_ptr <const headerField> ctf =
p->getHeader()->findField(fields::CONTENT_TYPE);
if (ctf)
{
const mediaType type = *ctf->getValue <mediaType>();
if (type.getType() == mediaTypes::TEXT &&
type.getSubType() == mediaTypes::TEXT_PLAIN)
{
m_plainText = p->getBody()->getContents()->clone();
found = true;
}
}
else
{
// No "Content-type" field.
}
}
// If we don't have found the plain text part here, it means that
// it does not exists (the MUA which built this message probably
// did not include it...).
return found;
}
}
}
else
{
// No "Content-type" field.
}
bool found = false;
for (size_t i = 0 ; !found && i < part.getBody()->getPartCount() ; ++i)
{
found = findPlainTextPart(*part.getBody()->getPartAt(i), parent, textPart);
}
return found;
}
