void Utility::detectPrefixAndIncludes(const std::string& origHFile, std::vector<std::string>& lines, std::string& prefix)
{
std::ifstream istr(origHFile.c_str());
try
{
if (istr.good())
{
std::string x;
istr >> x;
while (x.find("#ifndef") == std::string::npos)
istr >> x;
StringTokenizer tokenizer(x, " \t", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
poco_assert (tokenizer.count() == 2);
StringTokenizer::Iterator itTmp = tokenizer.begin();
++itTmp;
std::string defValue = *itTmp;
istr >> x;
// now find the corresponding #define
while (x.find(defValue) == std::string::npos)
istr >> x;
//now parse until a class def is found without a ; at the end
bool stop = false;
std::string prefixHint;
do
{
istr >> x;
// we add EVERYTHING to lines: reason: used macros/preprocessor defines, conditional includes should all be present in the generated code
// just think about fwd declarations inside a NS_BEGIN ... NS_END block
if (x.find("class") != std::string::npos && x.find(";") == std::string::npos)
{
StringTokenizer tok(x, " \t", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
StringTokenizer::Iterator it = tok.begin();
while (*it != "class" && it != tok.end())
++it;
// the next after class must be *_API or in case of a template it must be the class name
++it;
std::size_t apiPos = it->find("_API");
if (apiPos != std::string::npos)
{
prefixHint = it->substr(0, apiPos);
}
stop = true;
}
else
{
lines.push_back(x);
}
}
while (!stop && !istr.eof());
if (!stop)
{
lines.clear();
prefix.clear();
//throw Poco::SyntaxException("Failed to parse file " + origHFile + ".No class declared?");
return;
}
// now search the prefix
if (lines.empty())
{
prefix.clear();
return;
}
// the prefix for that file
std::vector<std::string>::const_iterator it = lines.end();
--it;
std::vector<std::string>::const_iterator itBegin = lines.begin();
for (; it != itBegin; --it)
{
std::size_t prefixPos = it->find("_BEGIN");
if (prefixPos != std::string::npos)
{
prefix = it->substr(0, prefixPos);
if (prefix != prefixHint && !prefixHint.empty())
{
throw Poco::SyntaxException("Conflicting prefixes detected: " + prefixHint + "<->" + prefix);
}
}
}
}
else throw Poco::OpenFileException(origHFile);
}
void NetPoco::httpRequest(string request, HTTPClientSession *session,string path, string headKey){
//Expires defaults to NOW. Will be reset if Expires or max-age headers are found!
DateTime expires;
cout << "DateTime now : " << DateTimeFormatter::format(expires.timestamp(), DateTimeFormat::RFC1123_FORMAT) << "\n";
HTTPRequest headReq(request, path, HTTPMessage::HTTP_1_1);
Poco::SharedPtr<pair<map<string,string>, string > > dataFromCache = clientCache->get(headKey);
if (!dataFromCache.isNull()) {
map<string,string> cachedHeaders = dataFromCache->first;
//cout << "HEADERS: \n";
//First check expires (HTTP 1.0):
map<string,string>::iterator pos = cachedHeaders.find("Expires");
if (pos != cachedHeaders.end()) {
cout << "Expires found" << pos->second << "\n";
DateTime dt;
int tzd;
DateTimeParser::parse(DateTimeFormat::RFC1123_FORMAT, pos->second , dt, tzd);
expires = dt;
}
//Replace result with max-age if found (HTTP 1.1):
pos = cachedHeaders.find("Cache-Control");
if (pos != cachedHeaders.end()) {
StringTokenizer cacheControlPairs(pos->second, ",", StringTokenizer::TOK_TRIM);
//cout << "Control pairs : " << cacheControlPairs.count() << "\n";
for(StringTokenizer::Iterator it = cacheControlPairs.begin(); it != cacheControlPairs.end(); ++it) {
//cout << "Inspecting : "<< * it << "\n";
if(string::npos != it->find("max-age")){
StringTokenizer maxAgePair(pos->second, "=", StringTokenizer::TOK_TRIM);
if (maxAgePair.count()==2) {
unsigned int secondsMaxAge = atoi(maxAgePair[1].c_str());
cout << "Found max-age : " << secondsMaxAge << "\n";
//cout << DateTime().dayOfWeek() << "\n";
//Set expires to max-age:
map<string,string>::iterator pos = cachedHeaders.find("Date");
if (pos != cachedHeaders.end()) {
cout << "Date found : " << pos->second << "\n";
DateTime dt;
int tzd;
DateTimeParser::parse(DateTimeFormat::RFC1123_FORMAT, pos->second , dt, tzd);
dt+=convertToMicro(secondsMaxAge);
cout << "expires : " << DateTimeFormatter::format(dt.timestamp(), DateTimeFormat::RFC1123_FORMAT) << "\n";
expires = dt;
}
}else{
cout << "Error invalid max-age" << "\n";
}
break;
}
}
}
DateTime now;
//If not Expired use cache:
if (now < expires ) {
cout << "now < expires" << endl;
this->usingCached = true;
return;
}else{
cout << "now > expires" << endl;
this->usingCached = false;
//Append Last-Modified and ETag to request headers:
pos = cachedHeaders.find("Last-Modified");
if (pos != cachedHeaders.end()) {
headReq.set("IF-MODIFIED-SINCE", pos->second);
}
pos = cachedHeaders.find("ETag");
if (pos != cachedHeaders.end()) {
headReq.set("IF-NONE-MATCH", pos->second);
}
}
}
else{
//No data in cache:
this->usingCached = false;
cout << "Cache was empty" << "\n";
}
cout << "send Request! \n";
session->sendRequest(headReq);
}