Examples with WebSocketHandshakeHolder io.undertow.websockets.jsr.ServerWebSocketContainer.WebSocketHandshakeHolder used on opensource projects

Example 1 with WebSocketHandshakeHolder

use of io.undertow.websockets.jsr.ServerWebSocketContainer.WebSocketHandshakeHolder in project undertow by undertow-io.

the class JsrWebSocketFilter method doFilter.

@Override
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {
    HttpServletRequest req = (HttpServletRequest) request;
    HttpServletResponse resp = (HttpServletResponse) response;
    if (req.getHeader(Headers.UPGRADE_STRING) != null) {
        final ServletWebSocketHttpExchange facade = new ServletWebSocketHttpExchange(req, resp, peerConnections);
        String path;
        if (req.getPathInfo() == null) {
            path = req.getServletPath();
        } else {
            path = req.getServletPath() + req.getPathInfo();
        }
        if (!path.startsWith("/")) {
            path = "/" + path;
        }
        PathTemplateMatcher.PathMatchResult<WebSocketHandshakeHolder> matchResult = pathTemplateMatcher.match(path);
        if (matchResult != null) {
            Handshake handshaker = null;
            for (Handshake method : matchResult.getValue().handshakes) {
                if (method.matches(facade)) {
                    handshaker = method;
                    break;
                }
            }
            if (handshaker != null) {
                if (container.isClosed()) {
                    resp.sendError(StatusCodes.SERVICE_UNAVAILABLE);
                    return;
                }
                facade.putAttachment(HandshakeUtil.PATH_PARAMS, matchResult.getParameters());
                facade.putAttachment(HandshakeUtil.PRINCIPAL, req.getUserPrincipal());
                final Handshake selected = handshaker;
                facade.upgradeChannel(new HttpUpgradeListener() {

                    @Override
                    public void handleUpgrade(StreamConnection streamConnection, HttpServerExchange exchange) {
                        WebSocketChannel channel = selected.createChannel(facade, streamConnection, facade.getBufferPool());
                        peerConnections.add(channel);
                        callback.onConnect(facade, channel);
                    }
                });
                handshaker.handshake(facade);
                return;
            }
        }
    }
    chain.doFilter(request, response);
}