@Override
public void onError(AsyncEvent event) throws IOException {
ServletResponse resp = event.getAsyncContext().getResponse();
resp.getWriter().write("onError-");
resp.flushBuffer();
if (completeOnError) {
event.getAsyncContext().complete();
}
}
protected void writeData(ServletResponse response, String data) throws IOException {
idleCheck.activity();
Log.debug("Session[" + session.getSessionId() + "]: writeData(START): " + data);
ServletOutputStream os = response.getOutputStream();
os.println("Content-Type: text/plain");
os.println();
os.println(data);
os.println(boundarySeperator);
response.flushBuffer();
Log.debug("Session[" + session.getSessionId() + "]: writeData(END): " + data);
}
/**
* Services this request in the same way as it would be serviced if configured as a Servlet. Does
* not invoke any filters further down the chain. See the class-level comment for the reason why
* this servlet might be configured as a filter.
*/
@Override
public void doFilter(
final ServletRequest request, final ServletResponse response, final FilterChain chain)
throws IOException, ServletException {
if (Math.random() > 0.7d) {
// response.setStatus(404);
response.getWriter().println("The chaos monkey strikes again!");
response.flushBuffer();
} else {
super.doFilter(request, response, chain);
}
}
@Override
public void onTimeout(AsyncEvent event) throws IOException {
ServletResponse resp = event.getAsyncContext().getResponse();
resp.getWriter().write("onTimeout-");
resp.flushBuffer();
if (completeOnTimeout) {
if (dispatchUrl == null) {
event.getAsyncContext().complete();
} else {
event.getAsyncContext().dispatch(dispatchUrl);
}
}
}
@Override
public void service(
javax.servlet.ServletRequest servletRequest, javax.servlet.ServletResponse servletResponse)
throws ServletException, IOException {
HttpServletRequest req = (HttpServletRequest) servletRequest;
HttpServletResponse resp = (HttpServletResponse) servletResponse;
try {
setThreadlocals(req, resp);
tlServletConfig.set(config);
Request request = new ServletRequest(req, servletContext);
Response response = new ServletResponse(resp);
httpManager.process(request, response);
} finally {
clearThreadlocals();
tlServletConfig.remove();
ServletRequest.clearThreadLocals();
servletResponse.getOutputStream().flush();
servletResponse.flushBuffer();
}
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest httpReq = (HttpServletRequest) request;
HttpServletResponse httpResp = (HttpServletResponse) response;
log.info("REQUEST-FILTER: checking for CORS (cross origin resource sharing) request");
// for cross-domain request, add headers allowing access in a handshake
// like manner
if ("OPTIONS".equalsIgnoreCase(httpReq.getMethod())) {
log.info("REQUEST-FILTER: CORS request from origin: " + httpReq.getHeader("Origin"));
httpResp.setHeader("Access-Control-Allow-Origin", "*");
httpResp.setHeader("Access-Control-Allow-Methods", ConfigurationStatics.VALID_HTTP_METHODS);
// bounce back the access-control headers
String headers = httpReq.getHeader("Access-Control-Request-Headers");
if (headers != null) httpResp.setHeader("Access-Control-Allow-Headers", headers);
// allow caching the cross-domain permission
httpResp.setHeader("Access-Control-Max-Age", "3600");
return;
}
log.info("REQUEST-FILTER: checking enabled flag");
if (!poll.getEnabled()) {
PrintWriter pw = response.getWriter();
try {
pw.println(VosyStatusCode.DISABLED.getStatusCode());
response.flushBuffer();
} catch (Exception e) {
throw new AuthorizationServiceException("Could not write disabled response.", e);
} finally {
pw.close();
}
} else {
chain.doFilter(request, response);
}
}
/**
* @see {@link ExternalContext#responseFlushBuffer()}
* @since JSF 2.0
*/
@Override
public void responseFlushBuffer() throws IOException {
if (portletResponse instanceof MimeResponse) {
if (facesImplementationServletResponse != null) {
// This happens when Mojarra's JspViewHandlingStrategy#buildView(FacesContext context,
// UIViewRoot)
// executes.
facesImplementationServletResponse.flushBuffer();
} else {
MimeResponse mimeResponse = (MimeResponse) portletResponse;
mimeResponse.flushBuffer();
}
} else {
if (manageIncongruities) {
incongruityContext.responseFlushBuffer();
} else {
throw new IllegalStateException();
}
}
}
/**
* This is Wicket's main method to execute a request
*
* @param request
* @param response
* @param chain
* @return false, if the request could not be processed
* @throws IOException
* @throws ServletException
*/
boolean processRequest(
ServletRequest request, final ServletResponse response, final FilterChain chain)
throws IOException, ServletException {
final ThreadContext previousThreadContext = ThreadContext.detach();
// Assume we are able to handle the request
boolean res = true;
final ClassLoader previousClassLoader = Thread.currentThread().getContextClassLoader();
final ClassLoader newClassLoader = getClassLoader();
try {
if (previousClassLoader != newClassLoader) {
Thread.currentThread().setContextClassLoader(newClassLoader);
}
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
HttpServletResponse httpServletResponse = (HttpServletResponse) response;
// Make sure getFilterPath() gets called before checkIfRedirectRequired()
String filterPath = getFilterPath(httpServletRequest);
if (filterPath == null) {
throw new IllegalStateException("filter path was not configured");
}
if (shouldIgnorePath(httpServletRequest)) {
log.debug("Ignoring request {}", httpServletRequest.getRequestURL());
if (chain != null) {
chain.doFilter(request, response);
}
return false;
}
String redirectURL = checkIfRedirectRequired(httpServletRequest);
if (redirectURL == null) {
// No redirect; process the request
ThreadContext.setApplication(application);
WebRequest webRequest = application.createWebRequest(httpServletRequest, filterPath);
WebResponse webResponse = application.createWebResponse(webRequest, httpServletResponse);
RequestCycle requestCycle = application.createRequestCycle(webRequest, webResponse);
if (!requestCycle.processRequestAndDetach()) {
if (chain != null) {
chain.doFilter(request, response);
}
res = false;
} else {
webResponse.flush();
}
} else {
if (Strings.isEmpty(httpServletRequest.getQueryString()) == false) {
redirectURL += "?" + httpServletRequest.getQueryString();
}
try {
// send redirect - this will discard POST parameters if the request is POST
// - still better than getting an error because of lacking trailing slash
httpServletResponse.sendRedirect(httpServletResponse.encodeRedirectURL(redirectURL));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
} finally {
ThreadContext.restore(previousThreadContext);
if (newClassLoader != previousClassLoader) {
Thread.currentThread().setContextClassLoader(previousClassLoader);
}
if (response.isCommitted()) {
response.flushBuffer();
}
}
return res;
}
public void flushBuffer() throws IOException {
response.flushBuffer();
}
@Override
public void onStartAsync(AsyncEvent event) throws IOException {
ServletResponse resp = event.getAsyncContext().getResponse();
resp.getWriter().write("onStartAsync-");
resp.flushBuffer();
}
/** @see javax.faces.context.ExternalContext#responseFlushBuffer() */
@Override
public void responseFlushBuffer() throws IOException {
response.flushBuffer();
}
