public function loadUrl($url, array $options = null)
{
$co = new CacheObject($url, CacheObject::CO_COMPRESS | CacheObject::CO_USE_DISK, function () use($url) {
$http = new HttpRequest();
$http->open("GET", $url);
\debug("RssReader: Loading RSS from {$url}");
if ($http->send()) {
return $http->getResponseText();
}
});
$this->loadString($co->getContent());
}
private function execute()
{
if ($this->status !== null) {
return null;
}
// Check cache policy
if ($this->options[self::OPT_CACHEPOLICY] == self::CACHEPOLICY_AUTO) {
$use_cache = true;
} else {
$use_cache = false;
}
// Don't cache post requests
if ($this->client->getMethod() == "POST") {
$use_cache = false;
}
$this->client->setUrl($this->url);
if ($use_cache) {
$flags = CacheObject::CO_USE_DISK | CacheObject::CO_COMPRESS;
$co = new CacheObject($this->url, $flags, function ($url) {
$this->debug("Refreshing cache object...");
$status = $this->client->execute();
$this->debug("Response gave status {$status} when updating cache object");
//if ($status == 200) {
$doc = $this->client->getResponse();
$ct = $this->client->getContentType();
// Calculate expiry here
return [$doc, $ct, '30m'];
//}
//return null;
});
if ($co->isCached()) {
$this->debug("Returning content from cache");
$this->emit(self::ON_CACHEHIT);
}
$this->response = $co->getContent();
$this->contenttype = $co->getContentType();
$this->status = 200;
} else {
$this->debug("Sending direct request");
$this->status = $this->client->execute();
$this->response = $this->client->getResponse();
$this->headers = $this->client->getAllHeaders();
$this->contenttype = null;
// $this->client->getHeaders();
}
if ($this->status == 200) {
return true;
}
return false;
}
public static function getUrl($url, $refresh = false)
{
$flags = self::CO_USE_DISK | self::CO_COMPRESS;
if ($refresh) {
$flags |= self::CO_FLUSH;
}
$co = new CacheObject($url, $flags, function ($assetid, $var) {
$doc = file_get_contents($assetid);
return [$doc, 'text/html', '30m'];
});
return $co->getContent();
}
