/**
* Start an event source.
*
* @param bool $verifyHeaders Verify headers or not.
* @return void
* @throws \Hoa\Eventsource\Exception
*/
public function __construct($verifyHeaders = true)
{
if (true === $verifyHeaders && true === headers_sent($file, $line)) {
throw new Exception('Headers already sent in %s at line %d, cannot send data ' . 'to client correctly.', 0, [$file, $line]);
}
$mimes = preg_split('#\\s*,\\s*#', Http\Runtime::getHeader('accept'));
$gotcha = false;
foreach ($mimes as $mime) {
if (0 !== preg_match('#^(\\*/\\*|' . self::MIME_TYPE . ';?)#', $mime)) {
$gotcha = true;
break;
}
}
$this->_response = new Http\Response(false);
if (false === $gotcha) {
$this->_response->sendHeader('Status', Http\Response::STATUS_NOT_ACCEPTABLE);
$this->_response->sendHeader('Content-Type', 'text/plain; charset=utf-8');
throw new Exception('Client does not accept %s.', 1, self::MIME_TYPE);
}
$this->_response->sendHeader('Content-Type', self::MIME_TYPE);
$this->_response->sendHeader('Transfer-Encoding', 'identity');
$this->_response->sendHeader('Cache-Control', 'no-cache');
$this->_response->sendHeader('X-Accel-Buffering', 'no');
$this->_response->newBuffer();
return;
}
