/**
* Prepare a curl handle for the http request
*
* @param String $url the URL to fetch
* @param int $modified (optional) seconds since Unix epoch of local copy
* @return $curl curl handle
*/
protected function prepareCurl($url, $lastmodified = 0)
{
$curl = curl_init();
// See http://curl.haxx.se/libcurl/c/curl_easy_setopt.html
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_USERAGENT, binarypool_config::getUseragent());
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
// return data as string
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 0);
// don't follow redirects
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $this->connectionTimeout);
// can't connect? fail fast...
curl_setopt($curl, CURLOPT_TIMEOUT, $this->timeout);
// total timeout
curl_setopt($curl, CURLOPT_NOSIGNAL, true);
curl_setopt($curl, CURLOPT_DNS_USE_GLOBAL_CACHE, FALSE);
curl_setopt($curl, CURLOPT_FILETIME, TRUE);
curl_setopt($curl, CURLOPT_HEADER, TRUE);
curl_setopt($curl, CURLOPT_ENCODING, '');
// sends Accept-Encoding for all suported encodings
if ($lastmodified) {
curl_setopt($curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
curl_setopt($curl, CURLOPT_TIMEVALUE, $lastmodified);
}
return $curl;
}