function testParseHeaders()
{
$client = new \arc\http\ClientStream();
$res = $client->get('https://www.ariadne-cms.org/');
$headers = \arc\http\headers::parse($client->responseHeaders);
$this->assertTrue($headers[0] == 'HTTP/1.1 200 OK');
$this->assertTrue(isset($headers['Content-Type']));
}
function testCacheMultiple()
{
$headerString = <<<EOF
HTTP/1.1 200 OK
Cache-Control: public
Cache-Control: max-age=300,s-maxage=900
EOF;
$headers = \arc\http\headers::parse($headerString);
$cachetime = \arc\http\headers::parseCacheTime($headers);
$this->assertEquals(300, $cachetime);
}
/**
* Parse response headers to determine if and how long you may cache the response. Doesn't understand ETags.
* @param string|string[] $headers Headers string or array as returned by parse()
* @param bool $private Whether to store a private cache or public cache image.
* @return int The number of seconds you may cache this result starting from now.
*/
public static function parseCacheTime($headers, $private = true)
{
$result = null;
if (is_string($headers) || !isset($headers['Cache-Control']) && !isset($headers['Expires'])) {
$headers = \arc\http\headers::parse($headers);
}
if (isset($headers['Cache-Control'])) {
$header = self::mergeHeaders($headers['Cache-Control']);
$result = self::getCacheControlTime($header, $private);
}
if (!isset($result) && isset($headers['Expires'])) {
$result = strtotime(self::getLastHeader($headers['Expires'])) - time();
}
return (int) $result;
}
