@Override
public void run(AtmosphereResource resource, UI ui) throws IOException {
getLogger()
.log(Level.FINER, "New push connection with transport {0}", resource.transport());
resource.getResponse().setContentType("text/plain; charset=UTF-8");
VaadinSession session = ui.getSession();
if (resource.transport() == TRANSPORT.STREAMING) {
// IE8 requires a longer padding to work properly if the
// initial message is small (#11573). Chrome does not work
// without the original padding...
WebBrowser browser = session.getBrowser();
if (browser.isIE() && browser.getBrowserMajorVersion() == 8) {
resource.padding(LONG_PADDING);
}
// Must ensure that the streaming response contains
// "Connection: close", otherwise iOS 6 will wait for the
// response to this request before sending another request to
// the same server (as it will apparently try to reuse the same
// connection)
resource.getResponse().addHeader("Connection", "close");
}
String requestToken =
resource.getRequest().getParameter(ApplicationConstants.CSRF_TOKEN_PARAMETER);
if (!VaadinService.isCsrfTokenValid(session, requestToken)) {
getLogger()
.log(
Level.WARNING,
"Invalid CSRF token in new connection received from {0}",
resource.getRequest().getRemoteHost());
// Refresh on client side, create connection just for
// sending a message
sendRefreshAndDisconnect(resource);
return;
}
resource.suspend();
AtmospherePushConnection connection = new AtmospherePushConnection(ui);
connection.connect(resource);
ui.setPushConnection(connection);
}
