/** * Outputs the HTML tags of the given component to the given writer. * * @param path the request path. If null, the servlet path is assumed. * @param out the output (never null). * @param richlet the richlet to run. If you have only one component to show and no need process * it under an execution, you could use {@link #render(javax.servlet.ServletContext, * javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, * org.zkoss.zk.ui.Component, String, java.io.Writer)} instead. * @since 5.0.5 */ public static final void render( ServletContext ctx, HttpServletRequest request, HttpServletResponse response, Richlet richlet, String path, Writer out) throws ServletException, IOException { if (path == null) path = Https.getThisServletPath(request); WebManager webman = WebManager.getWebManagerIfAny(ctx); if (webman == null) { final String ATTR = "org.zkoss.zkplus.embed.updateURI"; String updateURI = Library.getProperty(ATTR); if (updateURI == null) updateURI = "/zkau"; else updateURI = Utils.checkUpdateURI(updateURI, ATTR); webman = new WebManager(ctx, updateURI); } final Session sess = WebManager.getSession(ctx, request); final WebApp wapp = sess.getWebApp(); final WebAppCtrl wappc = (WebAppCtrl) wapp; final Object old = I18Ns.setup(sess, request, response, wapp.getConfiguration().getResponseCharset()); Execution exec = null; try { final Desktop desktop = webman.getDesktop(sess, request, response, path, true); if (desktop == null) // forward or redirect return; final RequestInfo ri = new RequestInfoImpl(wapp, sess, desktop, request, PageDefinitions.getLocator(wapp, path)); sess.setAttribute(Attributes.GAE_FIX, new Integer(0)); ((SessionCtrl) sess).notifyClientRequest(true); final UiFactory uf = wappc.getUiFactory(); final Page page = WebManager.newPage(uf, ri, richlet, response, path); exec = new ExecutionImpl(ctx, request, response, desktop, page); exec.setAttribute(Attributes.PAGE_REDRAW_CONTROL, "page"); exec.setAttribute(Attributes.PAGE_RENDERER, new PageRenderer(exec)); wappc.getUiEngine().execNewPage(exec, richlet, page, out); // no need to set device type here, since UiEngine will do it later } finally { I18Ns.cleanup(request, old); if (exec != null) { exec.removeAttribute(Attributes.PAGE_REDRAW_CONTROL); exec.removeAttribute(Attributes.PAGE_RENDERER); } } }
// -- super --// protected long getLastModified(HttpServletRequest request) { final String pi = Https.getThisPathInfo(request); if (pi != null && pi.startsWith(ClassWebResource.PATH_PREFIX) && pi.indexOf('*') < 0 // language independent && !Servlets.isIncluded(request)) { // If a resource extension is registered for the extension, // we assume the content is dynamic final String ext = Servlets.getExtension(pi, false); if (ext == null || getClassWebResource().getExtendlet(ext) == null) { if (_lastModified == 0) _lastModified = new Date().getTime(); // Hard to know when it is modified, so cheat it.. return _lastModified; } } return -1; }
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { final String pi = Https.getThisPathInfo(request); // if (log.finerable()) log.finer("Path info: "+pi); final ServletContext ctx = getServletContext(); final boolean withpi = pi != null && pi.length() != 0; if (withpi && pi.startsWith(ClassWebResource.PATH_PREFIX)) { // use HttpSession to avoid loading SerializableSession in GAE // and don't retrieve session if possible final ClassWebResource cwr = getClassWebResource(); final HttpSession hsess = shallSession(cwr, pi) ? request.getSession(false) : null; Object oldsess = null; if (hsess == null) { oldsess = SessionsCtrl.getRawCurrent(); SessionsCtrl.setCurrent(new SessionResolverImpl(ctx, request)); // it might be created later } WebApp wapp; Session sess; final Object old = hsess != null ? (wapp = WebManager.getWebAppIfAny(ctx)) != null && (sess = SessionsCtrl.getSession(wapp, hsess)) != null ? I18Ns.setup(sess, request, response, "UTF-8") : I18Ns.setup(hsess, request, response, "UTF-8") : Charsets.setup(null, request, response, "UTF-8"); try { cwr.service(request, response, pi.substring(ClassWebResource.PATH_PREFIX.length())); } finally { if (hsess != null) I18Ns.cleanup(request, old); else { Charsets.cleanup(request, old); SessionsCtrl.setRawCurrent(oldsess); } } return; // done } final Session sess = WebManager.getSession(ctx, request, false); if (withpi) { final AuExtension aue = getAuExtensionByPath(pi); if (aue == null) { response.sendError(response.SC_NOT_FOUND); log.debug("Unknown path info: " + pi); return; } Object oldsess = null; if (sess == null) { oldsess = SessionsCtrl.getRawCurrent(); SessionsCtrl.setCurrent(new SessionResolverImpl(ctx, request)); // it might be created later } final Object old = sess != null ? I18Ns.setup(sess, request, response, "UTF-8") : Charsets.setup(null, request, response, "UTF-8"); try { aue.service(request, response, pi); } finally { if (sess != null) I18Ns.cleanup(request, old); else { Charsets.cleanup(request, old); SessionsCtrl.setRawCurrent(oldsess); } } return; // done } // AU if (sess == null) { response.setIntHeader("ZK-Error", response.SC_GONE); // denote timeout // Bug 1849088: rmDesktop might be sent after invalidate // Bug 1859776: need send response to client for redirect or others final WebApp wapp = WebManager.getWebAppIfAny(ctx); final String dtid = getAuDecoder(wapp).getDesktopId(request); if (dtid != null) sessionTimeout(request, response, wapp, dtid); return; } // Feature 3285074 add no-cache for security risk. response.setHeader("Pragma", "no-cache"); response.setHeader("Cache-Control", "no-cache"); response.setHeader("Cache-Control", "no-store"); response.setHeader("Expires", "-1"); final Object old = I18Ns.setup(sess, request, response, "UTF-8"); try { process(sess, request, response); } finally { I18Ns.cleanup(request, old); } }