/**
* Test genRandomStr function.
*/
public function test_genRandomStr()
{
$lengths = [2, 4, 8, 16, 32, 64, 128];
foreach ($lengths as $len) {
$str = \pdyn\base\Utils::genRandomStr($len);
$this->assertInternalType('string', $str);
$this->assertEquals($len, mb_strlen($str));
}
}
/**
* Generate a guaranteed unique value of a specified length.
* @param int|bool $length A desired length, or false to use uniqid length.
* @return string The unique string.
*/
public static function uniqid($length = false)
{
if ($length <= 13) {
return uniqid();
}
$uniq = strrev(str_replace('.', '', uniqid('', true)));
$uniqlen = mb_strlen($uniq);
if ($length === false || $length === $uniqlen) {
return $uniq;
} elseif ($length < $uniqlen) {
return mb_substr($uniq, 0, $length);
} else {
return \pdyn\base\Utils::genRandomStr($length - mb_strlen($uniq)) . $uniq;
}
}
/**
* This sends a request to the hub.
*
* @param string $mode The request mode. 'subscribe' or 'unsubscribe'
* @param string $url The URL to send the request to - the hub URL.
* @param string $topic The topic you are referring to.
* @param string $callback The local callback URL.
* @param \pdyn\httpclient\HttpClientInterface $httpclient An HttpClientInterface object that will handle the transfer.
* @return bool|array True if successful, array of 'status_code', and 'msg', specifying received http code and body text.
*/
protected function send_request($mode, $url, $topic, $callback, \pdyn\httpclient\HttpClientInterface $httpclient)
{
if (!\pdyn\datatype\Url::validate($callback)) {
throw new Exception('Bad $callback received', Exception::ERR_BAD_REQUEST);
}
if (!\pdyn\datatype\Url::validate($url)) {
throw new Exception('Bad $url received', Exception::ERR_BAD_REQUEST);
}
$request = $this->storage->get_request($mode, $topic, $url, $callback);
$verifytoken = \pdyn\base\Utils::genRandomStr(64);
if (empty($request)) {
$request = $this->storage->create_request($mode, $topic, $url, $callback, $verifytoken);
}
$postdata = ['hub.mode' => $mode, 'hub.callback' => $callback, 'hub.topic' => $topic, 'hub.verify' => 'async', 'hub.verify_token' => $verifytoken, 'hub.lease_seconds' => 604800];
$response = $httpclient->post($url, $postdata);
if ($response->status_code() === 204 || $response->status_code() === 202) {
return true;
} else {
$this->storage->delete_request($request->id);
return ['status_code' => $response->status_code(), 'msg' => $response->body()];
}
}
