// set 'boundary' parameter (for multipart) of Content-Type field
void MimeHeader::SetBoundary(const char* pszBoundary/*=NULL*/)
{
static int s_nPartNumber = 0;
char buf[80];
if (!pszBoundary) // generate a new boundary delimeter
{
::srand(((unsigned)::time(NULL)) ^ (unsigned)this);
::sprintf(buf, "__=_Part_Boundary_%03d_%06d.%06d", ++s_nPartNumber, rand(), rand());
if (s_nPartNumber >= 9)
s_nPartNumber = 0;
pszBoundary = buf;
}
MimeField *pfd = GetField(CMimeConst::ContentType());
if (!pfd)
{
MimeField fd;
fd.SetName(CMimeConst::ContentType());
fd.SetValue("multipart/mixed");
fd.SetParameter(CMimeConst::Boundary(), pszBoundary);
m_listFields.push_back(fd);
}
else
{
if (::_memicmp(pfd->GetValue(), "multipart", 9) != 0)
pfd->SetValue("multipart/mixed");
pfd->SetParameter(CMimeConst::Boundary(), pszBoundary);
}
}
// set the 'charset' parameter (for text) of Content-Type field
void MimeHeader::SetCharset(const char* pszCharset)
{
MimeField *pfd = GetField(CMimeConst::ContentType());
if (!pfd)
{
MimeField fd;
fd.SetName(CMimeConst::ContentType());
fd.SetValue("text/plain");
fd.SetParameter(CMimeConst::Charset(), pszCharset);
m_listFields.push_back(fd);
}
else
pfd->SetParameter(CMimeConst::Charset(), pszCharset);
}
// set the 'name' parameter (for attachment) of Content-Type field
void MimeHeader::SetName(const char* pszName)
{
MimeField *pfd = GetField(CMimeConst::ContentType());
if (!pfd)
{
// get the appropriate media-type/subtype according to file extension
ASSERT(pszName != NULL);
string strType;
const char* pszType = "application/octet-stream";
const char* pszFileExt = ::strrchr(pszName, '.');
if (pszFileExt != NULL)
{
pszFileExt++;
int nIndex = 0;
while (m_TypeCvtTable[nIndex].nMediaType != MEDIA_UNKNOWN)
{
if (!::_stricmp(pszFileExt, m_TypeCvtTable[nIndex].pszFileExt))
{
strType = m_TypeTable[m_TypeCvtTable[nIndex].nMediaType];
strType += '/';
strType += m_TypeCvtTable[nIndex].pszSubType;
pszType = strType.c_str();
break;
}
nIndex++;
}
}
MimeField fd;
fd.SetName(CMimeConst::ContentType());
fd.SetValue(pszType);
fd.SetParameter(CMimeConst::Name(), pszName);
m_listFields.push_back(fd);
}
else
pfd->SetParameter(CMimeConst::Name(), pszName);
}