Example usage for org.springframework.web.socket.server HandshakeFailureException HandshakeFailureException

Introduction

In this page you can find the example usage for org.springframework.web.socket.server HandshakeFailureException HandshakeFailureException.

Prototype

public HandshakeFailureException(String message, Throwable cause) 

Source Link

Usage

From source file:org.springframework.web.socket.server.DefaultHandshakeHandler.java

private String getWebSocketKeyHash(String key) throws HandshakeFailureException {
    try {//from w ww . j  a  v a 2 s.co m
        MessageDigest digest = MessageDigest.getInstance("SHA1");
        byte[] bytes = digest.digest((key + GUID).getBytes(Charset.forName("ISO-8859-1")));
        return DatatypeConverter.printBase64Binary(bytes);
    } catch (NoSuchAlgorithmException ex) {
        throw new HandshakeFailureException("Failed to generate value for Sec-WebSocket-Key header", ex);
    }
}

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From source file:org.springframework.web.socket.server.support.AbstractHandshakeHandler.java

@Override
public final boolean doHandshake(ServerHttpRequest request, ServerHttpResponse response,
        WebSocketHandler wsHandler, Map<String, Object> attributes) throws HandshakeFailureException {

    WebSocketHttpHeaders headers = new WebSocketHttpHeaders(request.getHeaders());
    if (logger.isTraceEnabled()) {
        logger.trace("Processing request " + request.getURI() + " with headers=" + headers);
    }/*from  w w  w.j a v a2 s .c om*/
    try {
        if (HttpMethod.GET != request.getMethod()) {
            response.setStatusCode(HttpStatus.METHOD_NOT_ALLOWED);
            response.getHeaders().setAllow(Collections.singleton(HttpMethod.GET));
            if (logger.isErrorEnabled()) {
                logger.error("Handshake failed due to unexpected HTTP method: " + request.getMethod());
            }
            return false;
        }
        if (!"WebSocket".equalsIgnoreCase(headers.getUpgrade())) {
            handleInvalidUpgradeHeader(request, response);
            return false;
        }
        if (!headers.getConnection().contains("Upgrade") && !headers.getConnection().contains("upgrade")) {
            handleInvalidConnectHeader(request, response);
            return false;
        }
        if (!isWebSocketVersionSupported(headers)) {
            handleWebSocketVersionNotSupported(request, response);
            return false;
        }
        if (!isValidOrigin(request)) {
            response.setStatusCode(HttpStatus.FORBIDDEN);
            return false;
        }
        String wsKey = headers.getSecWebSocketKey();
        if (wsKey == null) {
            if (logger.isErrorEnabled()) {
                logger.error("Missing \"Sec-WebSocket-Key\" header");
            }
            response.setStatusCode(HttpStatus.BAD_REQUEST);
            return false;
        }
    } catch (IOException ex) {
        throw new HandshakeFailureException(
                "Response update failed during upgrade to WebSocket: " + request.getURI(), ex);
    }

    String subProtocol = selectProtocol(headers.getSecWebSocketProtocol(), wsHandler);
    List<WebSocketExtension> requested = headers.getSecWebSocketExtensions();
    List<WebSocketExtension> supported = this.requestUpgradeStrategy.getSupportedExtensions(request);
    List<WebSocketExtension> extensions = filterRequestedExtensions(request, requested, supported);
    Principal user = determineUser(request, wsHandler, attributes);

    if (logger.isTraceEnabled()) {
        logger.trace("Upgrading to WebSocket, subProtocol=" + subProtocol + ", extensions=" + extensions);
    }
    this.requestUpgradeStrategy.upgrade(request, response, subProtocol, extensions, user, wsHandler,
            attributes);
    return true;
}

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From source file:org.springframework.web.socket.server.support.DefaultHandshakeHandler.java

@Override
public final boolean doHandshake(ServerHttpRequest request, ServerHttpResponse response,
        WebSocketHandler wsHandler, Map<String, Object> attributes) throws HandshakeFailureException {

    WebSocketHttpHeaders headers = new WebSocketHttpHeaders(request.getHeaders());
    if (logger.isTraceEnabled()) {
        logger.trace("Processing request " + request.getURI() + " with headers=" + headers);
    }//w w w .j  a  va 2  s  .c  om
    try {
        if (!HttpMethod.GET.equals(request.getMethod())) {
            response.setStatusCode(HttpStatus.METHOD_NOT_ALLOWED);
            response.getHeaders().setAllow(Collections.singleton(HttpMethod.GET));
            if (logger.isErrorEnabled()) {
                logger.error("Handshake failed due to unexpected HTTP method: " + request.getMethod());
            }
            return false;
        }
        if (!"WebSocket".equalsIgnoreCase(headers.getUpgrade())) {
            handleInvalidUpgradeHeader(request, response);
            return false;
        }
        if (!headers.getConnection().contains("Upgrade") && !headers.getConnection().contains("upgrade")) {
            handleInvalidConnectHeader(request, response);
            return false;
        }
        if (!isWebSocketVersionSupported(headers)) {
            handleWebSocketVersionNotSupported(request, response);
            return false;
        }
        if (!isValidOrigin(request)) {
            response.setStatusCode(HttpStatus.FORBIDDEN);
            return false;
        }
        String wsKey = headers.getSecWebSocketKey();
        if (wsKey == null) {
            if (logger.isErrorEnabled()) {
                logger.error("Missing \"Sec-WebSocket-Key\" header");
            }
            response.setStatusCode(HttpStatus.BAD_REQUEST);
            return false;
        }
    } catch (IOException ex) {
        throw new HandshakeFailureException(
                "Response update failed during upgrade to WebSocket, uri=" + request.getURI(), ex);
    }

    String subProtocol = selectProtocol(headers.getSecWebSocketProtocol(), wsHandler);
    List<WebSocketExtension> requested = headers.getSecWebSocketExtensions();
    List<WebSocketExtension> supported = this.requestUpgradeStrategy.getSupportedExtensions(request);
    List<WebSocketExtension> extensions = filterRequestedExtensions(request, requested, supported);
    Principal user = determineUser(request, wsHandler, attributes);

    if (logger.isTraceEnabled()) {
        logger.trace("Upgrading to WebSocket, subProtocol=" + subProtocol + ", extensions=" + extensions);
    }
    this.requestUpgradeStrategy.upgrade(request, response, subProtocol, extensions, user, wsHandler,
            attributes);
    return true;
}

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From source file:org.springframework.web.socket.server.support.WebSocketHttpRequestHandler.java

@Override
public void handleRequest(HttpServletRequest servletRequest, HttpServletResponse servletResponse)
        throws ServletException, IOException {

    ServerHttpRequest request = new ServletServerHttpRequest(servletRequest);
    ServerHttpResponse response = new ServletServerHttpResponse(servletResponse);

    HandshakeInterceptorChain chain = new HandshakeInterceptorChain(this.interceptors, this.wsHandler);
    HandshakeFailureException failure = null;

    try {//from   w w w .  j a  va 2 s.  co m
        if (logger.isDebugEnabled()) {
            logger.debug(servletRequest.getMethod() + " " + servletRequest.getRequestURI());
        }
        Map<String, Object> attributes = new HashMap<>();
        if (!chain.applyBeforeHandshake(request, response, attributes)) {
            return;
        }
        this.handshakeHandler.doHandshake(request, response, this.wsHandler, attributes);
        chain.applyAfterHandshake(request, response, null);
        response.close();
    } catch (HandshakeFailureException ex) {
        failure = ex;
    } catch (Throwable ex) {
        failure = new HandshakeFailureException("Uncaught failure for request " + request.getURI(), ex);
    } finally {
        if (failure != null) {
            chain.applyAfterHandshake(request, response, failure);
            throw failure;
        }
    }
}

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From source file:org.springframework.web.socket.sockjs.transport.TransportHandlingSockJsService.java

@Override
protected void handleRawWebSocketRequest(ServerHttpRequest request, ServerHttpResponse response,
        WebSocketHandler handler) throws IOException {

    TransportHandler transportHandler = this.handlers.get(TransportType.WEBSOCKET);
    if (!(transportHandler instanceof HandshakeHandler)) {
        logger.error("No handler configured for raw WebSocket messages");
        response.setStatusCode(HttpStatus.NOT_FOUND);
        return;// ww  w.  jav a2  s.c o  m
    }

    HandshakeInterceptorChain chain = new HandshakeInterceptorChain(this.interceptors, handler);
    HandshakeFailureException failure = null;

    try {
        Map<String, Object> attributes = new HashMap<String, Object>();
        if (!chain.applyBeforeHandshake(request, response, attributes)) {
            return;
        }
        ((HandshakeHandler) transportHandler).doHandshake(request, response, handler, attributes);
        chain.applyAfterHandshake(request, response, null);
    } catch (HandshakeFailureException ex) {
        failure = ex;
    } catch (Throwable ex) {
        failure = new HandshakeFailureException("Uncaught failure for request " + request.getURI(), ex);
    } finally {
        if (failure != null) {
            chain.applyAfterHandshake(request, response, failure);
            throw failure;
        }
    }
}

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