int
SpamAssassinClient::ParseFirstBuffer_(std::shared_ptr<ByteBuffer> pBuffer) const
{
// Don't send first line, since it's the Result header.
char *pHeaderEndPosition = StringParser::Search(pBuffer->GetCharBuffer(), pBuffer->GetSize(), "\r\n\r\n");
if (!pHeaderEndPosition)
{
LOG_DEBUG("The response from SpamAssasin was not valid. Aborting. Expected a header.\r\n");
return -1;
}
size_t headerLength = pHeaderEndPosition - pBuffer->GetCharBuffer();
AnsiString spamAssassinHeader(pBuffer->GetCharBuffer(), headerLength);
std::vector<AnsiString> headerLines = StringParser::SplitString(spamAssassinHeader, "\r\n");
AnsiString firstLine = headerLines[0];
AnsiString secondLine = headerLines[1];
if (firstLine.Compare("SPAMD/1.1 0 EX_OK") != 0)
{
// We should never get here, since we should always have
// a header in the result
LOG_DEBUG(Formatter::Format("The response from SpamAssasin was not valid. Aborting. Expected: SPAMD/1.1 0 EX_OK, Got: {0}\r\n", firstLine));
return -1;
}
if (!secondLine.StartsWith("Content-length:"))
{
// We should never get here, since we should always have
// a header in the result
LOG_DEBUG(Formatter::Format("The response from SpamAssasin was not valid. Aborting. Expected: Content-Length:<value>, Got: {0}\r\n", secondLine));
return -1;
}
// Extract the second line from the first buffer. This buffer
// contains the result of the operation (success / failure).
std::vector<AnsiString> contentLengthHeader = StringParser::SplitString(secondLine, ":");
if (contentLengthHeader.size() != 2)
{
LOG_DEBUG(Formatter::Format("The response from SpamAssasin was not valid. Aborting. Content-Length header not properly formatted. Expected: Content-Length:<value>, Got: {0}\r\n", secondLine));
return -1;
}
int contentLength;
std::string sConSize = contentLengthHeader[1].Trim();
if (!StringParser::TryParseInt(sConSize, contentLength))
{
LOG_DEBUG(Formatter::Format("The response from SpamAssasin was not valid. Aborting. Content-Length header not properly formatted. Expected: Content-Length:<value>, Got: {0}\r\n", secondLine));
return -1;
}
// Remove the SA header lines from the result.
size_t iEndingBytesSize = pBuffer->GetSize() - headerLength - 4; // 4 due to header ending with \r\n\r\n.
pBuffer->Empty(iEndingBytesSize);
return contentLength;
}
