function postExecute(HeaderManager $headers)
{
//If people dont utilise the checks until now this will catch it at the end of the request
if ($headers->status == 200) {
if (isset($headers['Last-Modified'])) {
//Check if the user sent a If-Modified-Since header in their request
$ims = \Radical\Web\Page\Request::header('If-Modified-Since');
if ($ims) {
//Parse the time in the last modified sent from the page handler
$lmts = strtotime($headers['Last-Modified']);
//If the user has an unmodified version (aparently) based on last modifed dates
if ($lmts <= strtotime($ims)) {
$this->notModified($headers);
}
}
} else {
//If no Last-Modified specified
//Look for etag in request
$et = \Radical\Web\Page\Request::header('If-None-Match');
if (strlen($et) >= 2) {
if (substr($et, 0, 2) == 'W/') {
$et = substr($et, 2);
}
}
if (isset($headers['ETag'])) {
if ($et == $headers['ETag']) {
$this->notModified($headers);
}
} else {
$hash = md5(md5(ob_get_contents(), true) . session_id());
if ($hash == substr($et, 1, -1)) {
$this->notModified($headers);
} else {
$headers->setEtag($hash);
}
}
}
}
}
static function fromRequest()
{
$url = Request::getUrl();
return static::fromURL($url);
}