Examples with RunAsLifecycleInterceptor org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor used on opensource projects

Example 1 with RunAsLifecycleInterceptor

use of org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor in project wildfly by wildfly.

the class UndertowDeploymentInfoService method createServletConfig.

private DeploymentInfo createServletConfig() throws StartException {
    final ComponentRegistry componentRegistry = componentRegistryInjectedValue.getValue();
    try {
        if (!mergedMetaData.isMetadataComplete()) {
            mergedMetaData.resolveAnnotations();
        }
        mergedMetaData.resolveRunAs();
        final DeploymentInfo d = new DeploymentInfo();
        d.setContextPath(resolveContextPath());
        if (mergedMetaData.getDescriptionGroup() != null) {
            d.setDisplayName(mergedMetaData.getDescriptionGroup().getDisplayName());
        }
        d.setDeploymentName(deploymentName);
        d.setHostName(host.getValue().getName());
        final ServletContainerService servletContainer = container.getValue();
        try {
            //TODO: make the caching limits configurable
            List<String> externalOverlays = mergedMetaData.getOverlays();
            ResourceManager resourceManager = new ServletResourceManager(deploymentRoot, overlays, explodedDeployment, mergedMetaData.isSymbolicLinkingEnabled(), servletContainer.isDisableFileWatchService(), externalOverlays);
            resourceManager = new CachingResourceManager(100, 10 * 1024 * 1024, servletContainer.getBufferCache(), resourceManager, explodedDeployment ? 2000 : -1);
            if (externalResources != null && !externalResources.isEmpty()) {
                //TODO: we don't cache external deployments, as they are intended for development use
                //should be make this configurable or something?
                List<ResourceManager> delegates = new ArrayList<>();
                for (File resource : externalResources) {
                    delegates.add(new FileResourceManager(resource.getCanonicalFile(), 1024, true, mergedMetaData.isSymbolicLinkingEnabled(), "/"));
                }
                delegates.add(resourceManager);
                resourceManager = new DelegatingResourceManager(delegates);
            }
            d.setResourceManager(resourceManager);
        } catch (IOException e) {
            throw new StartException(e);
        }
        d.setTempDir(tempDir);
        d.setClassLoader(module.getClassLoader());
        final String servletVersion = mergedMetaData.getServletVersion();
        if (servletVersion != null) {
            d.setMajorVersion(Integer.parseInt(servletVersion.charAt(0) + ""));
            d.setMinorVersion(Integer.parseInt(servletVersion.charAt(2) + ""));
        } else {
            d.setMajorVersion(3);
            d.setMinorVersion(1);
        }
        //in most cases flush just hurts performance for no good reason
        d.setIgnoreFlush(servletContainer.isIgnoreFlush());
        //controls initialization of filters on start of application
        d.setEagerFilterInit(servletContainer.isEagerFilterInit());
        d.setAllowNonStandardWrappers(servletContainer.isAllowNonStandardWrappers());
        d.setServletStackTraces(servletContainer.getStackTraces());
        d.setDisableCachingForSecuredPages(servletContainer.isDisableCachingForSecuredPages());
        if (servletContainer.getSessionPersistenceManager() != null) {
            d.setSessionPersistenceManager(servletContainer.getSessionPersistenceManager());
        }
        //for 2.2 apps we do not require a leading / in path mappings
        boolean is22OrOlder;
        if (d.getMajorVersion() == 1) {
            is22OrOlder = true;
        } else if (d.getMajorVersion() == 2) {
            is22OrOlder = d.getMinorVersion() < 3;
        } else {
            is22OrOlder = false;
        }
        JSPConfig jspConfig = servletContainer.getJspConfig();
        final Set<String> seenMappings = new HashSet<>();
        HashMap<String, TagLibraryInfo> tldInfo = createTldsInfo(tldsMetaData, sharedTlds);
        //default JSP servlet
        final ServletInfo jspServlet = jspConfig != null ? jspConfig.createJSPServletInfo() : null;
        if (jspServlet != null) {
            //this would be null if jsp support is disabled
            HashMap<String, JspPropertyGroup> propertyGroups = createJspConfig(mergedMetaData);
            JspServletBuilder.setupDeployment(d, propertyGroups, tldInfo, new UndertowJSPInstanceManager(new WebInjectionContainer(module.getClassLoader(), componentRegistryInjectedValue.getValue())));
            if (mergedMetaData.getJspConfig() != null) {
                Collection<JspPropertyGroup> values = new LinkedHashSet<>(propertyGroups.values());
                d.setJspConfigDescriptor(new JspConfigDescriptorImpl(tldInfo.values(), values));
            }
            d.addServlet(jspServlet);
            final Set<String> jspPropertyGroupMappings = propertyGroups.keySet();
            for (final String mapping : jspPropertyGroupMappings) {
                if (!jspServlet.getMappings().contains(mapping)) {
                    jspServlet.addMapping(mapping);
                }
            }
            seenMappings.addAll(jspPropertyGroupMappings);
            //setup JSP application context initializing listener
            d.addListener(new ListenerInfo(JspInitializationListener.class));
            d.addServletContextAttribute(JspInitializationListener.CONTEXT_KEY, expressionFactoryWrappers);
        }
        d.setClassIntrospecter(new ComponentClassIntrospector(componentRegistry));
        final Map<String, List<ServletMappingMetaData>> servletMappings = new HashMap<>();
        if (mergedMetaData.getExecutorName() != null) {
            d.setExecutor(executorsByName.get(mergedMetaData.getExecutorName()).getValue());
        }
        Boolean proactiveAuthentication = mergedMetaData.getProactiveAuthentication();
        if (proactiveAuthentication == null) {
            proactiveAuthentication = container.getValue().isProactiveAuth();
        }
        d.setAuthenticationMode(proactiveAuthentication ? AuthenticationMode.PRO_ACTIVE : AuthenticationMode.CONSTRAINT_DRIVEN);
        if (servletExtensions != null) {
            for (ServletExtension extension : servletExtensions) {
                d.addServletExtension(extension);
            }
        }
        if (mergedMetaData.getServletMappings() != null) {
            for (final ServletMappingMetaData mapping : mergedMetaData.getServletMappings()) {
                List<ServletMappingMetaData> list = servletMappings.get(mapping.getServletName());
                if (list == null) {
                    servletMappings.put(mapping.getServletName(), list = new ArrayList<>());
                }
                list.add(mapping);
            }
        }
        if (jspServlet != null) {
            // we need to clear the file attribute if it is set (WFLY-4106)
            jspServlet.addHandlerChainWrapper(JspFileHandler.jspFileHandlerWrapper(null));
            List<ServletMappingMetaData> list = servletMappings.get(jspServlet.getName());
            if (list != null && !list.isEmpty()) {
                for (final ServletMappingMetaData mapping : list) {
                    for (String urlPattern : mapping.getUrlPatterns()) {
                        jspServlet.addMapping(urlPattern);
                    }
                    seenMappings.addAll(mapping.getUrlPatterns());
                }
            }
        }
        final List<JBossServletMetaData> servlets = new ArrayList<JBossServletMetaData>();
        for (JBossServletMetaData servlet : mergedMetaData.getServlets()) {
            servlets.add(servlet);
        }
        for (final JBossServletMetaData servlet : mergedMetaData.getServlets()) {
            final ServletInfo s;
            if (servlet.getJspFile() != null) {
                s = new ServletInfo(servlet.getName(), JspServlet.class);
                s.addHandlerChainWrapper(JspFileHandler.jspFileHandlerWrapper(servlet.getJspFile()));
            } else {
                if (servlet.getServletClass() == null) {
                    if (DEFAULT_SERVLET_NAME.equals(servlet.getName())) {
                        s = new ServletInfo(servlet.getName(), DefaultServlet.class);
                    } else {
                        throw UndertowLogger.ROOT_LOGGER.servletClassNotDefined(servlet.getServletName());
                    }
                } else {
                    Class<? extends Servlet> servletClass = (Class<? extends Servlet>) module.getClassLoader().loadClass(servlet.getServletClass());
                    ManagedReferenceFactory creator = componentRegistry.createInstanceFactory(servletClass);
                    if (creator != null) {
                        InstanceFactory<Servlet> factory = createInstanceFactory(creator);
                        s = new ServletInfo(servlet.getName(), servletClass, factory);
                    } else {
                        s = new ServletInfo(servlet.getName(), servletClass);
                    }
                }
            }
            s.setAsyncSupported(servlet.isAsyncSupported()).setJspFile(servlet.getJspFile()).setEnabled(servlet.isEnabled());
            if (servlet.getRunAs() != null) {
                s.setRunAs(servlet.getRunAs().getRoleName());
            }
            if (servlet.getLoadOnStartupSet()) {
                //todo why not cleanup api and just use int everywhere
                s.setLoadOnStartup(servlet.getLoadOnStartupInt());
            }
            if (servlet.getExecutorName() != null) {
                s.setExecutor(executorsByName.get(servlet.getExecutorName()).getValue());
            }
            handleServletMappings(is22OrOlder, seenMappings, servletMappings, s);
            if (servlet.getInitParam() != null) {
                for (ParamValueMetaData initParam : servlet.getInitParam()) {
                    if (!s.getInitParams().containsKey(initParam.getParamName())) {
                        s.addInitParam(initParam.getParamName(), initParam.getParamValue());
                    }
                }
            }
            if (servlet.getServletSecurity() != null) {
                ServletSecurityInfo securityInfo = new ServletSecurityInfo();
                s.setServletSecurityInfo(securityInfo);
                securityInfo.setEmptyRoleSemantic(servlet.getServletSecurity().getEmptyRoleSemantic() == EmptyRoleSemanticType.DENY ? DENY : PERMIT).setTransportGuaranteeType(transportGuaranteeType(servlet.getServletSecurity().getTransportGuarantee())).addRolesAllowed(servlet.getServletSecurity().getRolesAllowed());
                if (servlet.getServletSecurity().getHttpMethodConstraints() != null) {
                    for (HttpMethodConstraintMetaData method : servlet.getServletSecurity().getHttpMethodConstraints()) {
                        securityInfo.addHttpMethodSecurityInfo(new HttpMethodSecurityInfo().setEmptyRoleSemantic(method.getEmptyRoleSemantic() == EmptyRoleSemanticType.DENY ? DENY : PERMIT).setTransportGuaranteeType(transportGuaranteeType(method.getTransportGuarantee())).addRolesAllowed(method.getRolesAllowed()).setMethod(method.getMethod()));
                    }
                }
            }
            if (servlet.getSecurityRoleRefs() != null) {
                for (final SecurityRoleRefMetaData ref : servlet.getSecurityRoleRefs()) {
                    s.addSecurityRoleRef(ref.getRoleName(), ref.getRoleLink());
                }
            }
            if (servlet.getMultipartConfig() != null) {
                MultipartConfigMetaData mp = servlet.getMultipartConfig();
                s.setMultipartConfig(Servlets.multipartConfig(mp.getLocation(), mp.getMaxFileSize(), mp.getMaxRequestSize(), mp.getFileSizeThreshold()));
            }
            d.addServlet(s);
        }
        if (jspServlet != null) {
            if (!seenMappings.contains("*.jsp")) {
                jspServlet.addMapping("*.jsp");
            }
            if (!seenMappings.contains("*.jspx")) {
                jspServlet.addMapping("*.jspx");
            }
        }
        //we explicitly add the default servlet, to allow it to be mapped
        if (!mergedMetaData.getServlets().containsKey(ServletPathMatches.DEFAULT_SERVLET_NAME)) {
            ServletInfo defaultServlet = Servlets.servlet(DEFAULT_SERVLET_NAME, DefaultServlet.class);
            handleServletMappings(is22OrOlder, seenMappings, servletMappings, defaultServlet);
            d.addServlet(defaultServlet);
        }
        if (servletContainer.getDirectoryListingEnabled() != null) {
            ServletInfo defaultServlet = d.getServlets().get(DEFAULT_SERVLET_NAME);
            defaultServlet.addInitParam(DefaultServlet.DIRECTORY_LISTING, servletContainer.getDirectoryListingEnabled().toString());
        }
        if (mergedMetaData.getFilters() != null) {
            for (final FilterMetaData filter : mergedMetaData.getFilters()) {
                Class<? extends Filter> filterClass = (Class<? extends Filter>) module.getClassLoader().loadClass(filter.getFilterClass());
                ManagedReferenceFactory creator = componentRegistry.createInstanceFactory(filterClass);
                FilterInfo f;
                if (creator != null) {
                    InstanceFactory<Filter> instanceFactory = createInstanceFactory(creator);
                    f = new FilterInfo(filter.getName(), filterClass, instanceFactory);
                } else {
                    f = new FilterInfo(filter.getName(), filterClass);
                }
                f.setAsyncSupported(filter.isAsyncSupported());
                d.addFilter(f);
                if (filter.getInitParam() != null) {
                    for (ParamValueMetaData initParam : filter.getInitParam()) {
                        f.addInitParam(initParam.getParamName(), initParam.getParamValue());
                    }
                }
            }
        }
        if (mergedMetaData.getFilterMappings() != null) {
            for (final FilterMappingMetaData mapping : mergedMetaData.getFilterMappings()) {
                if (mapping.getUrlPatterns() != null) {
                    for (String url : mapping.getUrlPatterns()) {
                        if (is22OrOlder && !url.startsWith("*") && !url.startsWith("/")) {
                            url = "/" + url;
                        }
                        if (mapping.getDispatchers() != null && !mapping.getDispatchers().isEmpty()) {
                            for (DispatcherType dispatcher : mapping.getDispatchers()) {
                                d.addFilterUrlMapping(mapping.getFilterName(), url, javax.servlet.DispatcherType.valueOf(dispatcher.name()));
                            }
                        } else {
                            d.addFilterUrlMapping(mapping.getFilterName(), url, javax.servlet.DispatcherType.REQUEST);
                        }
                    }
                }
                if (mapping.getServletNames() != null) {
                    for (String servletName : mapping.getServletNames()) {
                        if (mapping.getDispatchers() != null && !mapping.getDispatchers().isEmpty()) {
                            for (DispatcherType dispatcher : mapping.getDispatchers()) {
                                d.addFilterServletNameMapping(mapping.getFilterName(), servletName, javax.servlet.DispatcherType.valueOf(dispatcher.name()));
                            }
                        } else {
                            d.addFilterServletNameMapping(mapping.getFilterName(), servletName, javax.servlet.DispatcherType.REQUEST);
                        }
                    }
                }
            }
        }
        if (scisMetaData != null && scisMetaData.getHandlesTypes() != null) {
            for (final ServletContainerInitializer sci : scisMetaData.getScis()) {
                final ImmediateInstanceFactory<ServletContainerInitializer> instanceFactory = new ImmediateInstanceFactory<>(sci);
                d.addServletContainerInitalizer(new ServletContainerInitializerInfo(sci.getClass(), instanceFactory, scisMetaData.getHandlesTypes().get(sci)));
            }
        }
        if (mergedMetaData.getListeners() != null) {
            for (ListenerMetaData listener : mergedMetaData.getListeners()) {
                addListener(module.getClassLoader(), componentRegistry, d, listener);
            }
        }
        if (mergedMetaData.getContextParams() != null) {
            for (ParamValueMetaData param : mergedMetaData.getContextParams()) {
                d.addInitParameter(param.getParamName(), param.getParamValue());
            }
        }
        if (mergedMetaData.getWelcomeFileList() != null && mergedMetaData.getWelcomeFileList().getWelcomeFiles() != null) {
            List<String> welcomeFiles = mergedMetaData.getWelcomeFileList().getWelcomeFiles();
            for (String file : welcomeFiles) {
                if (file.startsWith("/")) {
                    d.addWelcomePages(file.substring(1));
                } else {
                    d.addWelcomePages(file);
                }
            }
        } else {
            d.addWelcomePages("index.html", "index.htm", "index.jsp");
        }
        d.addWelcomePages(servletContainer.getWelcomeFiles());
        if (mergedMetaData.getErrorPages() != null) {
            for (final ErrorPageMetaData page : mergedMetaData.getErrorPages()) {
                final ErrorPage errorPage;
                if (page.getExceptionType() != null && !page.getExceptionType().isEmpty()) {
                    errorPage = new ErrorPage(page.getLocation(), (Class<? extends Throwable>) module.getClassLoader().loadClass(page.getExceptionType()));
                } else if (page.getErrorCode() != null && !page.getErrorCode().isEmpty()) {
                    errorPage = new ErrorPage(page.getLocation(), Integer.parseInt(page.getErrorCode()));
                } else {
                    errorPage = new ErrorPage(page.getLocation());
                }
                d.addErrorPages(errorPage);
            }
        }
        for (Map.Entry<String, String> entry : servletContainer.getMimeMappings().entrySet()) {
            d.addMimeMapping(new MimeMapping(entry.getKey(), entry.getValue()));
        }
        if (mergedMetaData.getMimeMappings() != null) {
            for (final MimeMappingMetaData mapping : mergedMetaData.getMimeMappings()) {
                d.addMimeMapping(new MimeMapping(mapping.getExtension(), mapping.getMimeType()));
            }
        }
        d.setDenyUncoveredHttpMethods(mergedMetaData.getDenyUncoveredHttpMethods() != null);
        Set<String> securityRoleNames = mergedMetaData.getSecurityRoleNames();
        if (mergedMetaData.getSecurityConstraints() != null) {
            for (SecurityConstraintMetaData constraint : mergedMetaData.getSecurityConstraints()) {
                SecurityConstraint securityConstraint = new SecurityConstraint().setTransportGuaranteeType(transportGuaranteeType(constraint.getTransportGuarantee()));
                List<String> roleNames = constraint.getRoleNames();
                if (constraint.getAuthConstraint() == null) {
                    // no auth constraint means we permit the empty roles
                    securityConstraint.setEmptyRoleSemantic(PERMIT);
                } else if (roleNames.size() == 1 && roleNames.contains("*") && securityRoleNames.contains("*")) {
                    // AS7-6932 - Trying to do a * to * mapping which JBossWeb passed through, for Undertow enable
                    // authentication only mode.
                    // TODO - AS7-6933 - Revisit workaround added to allow switching between JBoss Web and Undertow.
                    securityConstraint.setEmptyRoleSemantic(AUTHENTICATE);
                } else {
                    securityConstraint.addRolesAllowed(roleNames);
                }
                if (constraint.getResourceCollections() != null) {
                    for (final WebResourceCollectionMetaData resourceCollection : constraint.getResourceCollections()) {
                        securityConstraint.addWebResourceCollection(new WebResourceCollection().addHttpMethods(resourceCollection.getHttpMethods()).addHttpMethodOmissions(resourceCollection.getHttpMethodOmissions()).addUrlPatterns(resourceCollection.getUrlPatterns()));
                    }
                }
                d.addSecurityConstraint(securityConstraint);
            }
        }
        final LoginConfigMetaData loginConfig = mergedMetaData.getLoginConfig();
        if (loginConfig != null) {
            List<AuthMethodConfig> authMethod = authMethod(loginConfig.getAuthMethod());
            if (loginConfig.getFormLoginConfig() != null) {
                d.setLoginConfig(new LoginConfig(loginConfig.getRealmName(), loginConfig.getFormLoginConfig().getLoginPage(), loginConfig.getFormLoginConfig().getErrorPage()));
            } else {
                d.setLoginConfig(new LoginConfig(loginConfig.getRealmName()));
            }
            for (AuthMethodConfig method : authMethod) {
                d.getLoginConfig().addLastAuthMethod(method);
            }
        }
        d.addSecurityRoles(mergedMetaData.getSecurityRoleNames());
        Map<String, Set<String>> principalVersusRolesMap = mergedMetaData.getPrincipalVersusRolesMap();
        BiFunction<DeploymentInfo, Function<String, RunAsIdentityMetaData>, Registration> securityFunction = this.securityFunction.getOptionalValue();
        if (securityFunction != null) {
            Map<String, RunAsIdentityMetaData> runAsIdentityMap = mergedMetaData.getRunAsIdentity();
            registration = securityFunction.apply(d, runAsIdentityMap::get);
            d.addOuterHandlerChainWrapper(JACCContextIdHandler.wrapper(jaccContextId));
            if (mergedMetaData.isUseJBossAuthorization()) {
                UndertowLogger.ROOT_LOGGER.configurationOptionIgnoredWhenUsingElytron("use-jboss-authorization");
            }
        } else {
            if (securityDomain != null) {
                d.addThreadSetupAction(new SecurityContextThreadSetupAction(securityDomain, securityDomainContextValue.getValue(), principalVersusRolesMap));
                d.addInnerHandlerChainWrapper(SecurityContextAssociationHandler.wrapper(mergedMetaData.getRunAsIdentity()));
                d.addOuterHandlerChainWrapper(JACCContextIdHandler.wrapper(jaccContextId));
                d.addLifecycleInterceptor(new RunAsLifecycleInterceptor(mergedMetaData.getRunAsIdentity()));
            }
        }
        if (principalVersusRolesMap != null) {
            for (Map.Entry<String, Set<String>> entry : principalVersusRolesMap.entrySet()) {
                d.addPrincipalVsRoleMappings(entry.getKey(), entry.getValue());
            }
        }
        // Setup an deployer configured ServletContext attributes
        if (attributes != null) {
            for (ServletContextAttribute attribute : attributes) {
                d.addServletContextAttribute(attribute.getName(), attribute.getValue());
            }
        }
        //now setup websockets if they are enabled
        if (servletContainer.isWebsocketsEnabled() && webSocketDeploymentInfo != null) {
            webSocketDeploymentInfo.setBuffers(servletContainer.getWebsocketsBufferPool().getValue());
            webSocketDeploymentInfo.setWorker(servletContainer.getWebsocketsWorker().getValue());
            webSocketDeploymentInfo.setDispatchToWorkerThread(servletContainer.isDispatchWebsocketInvocationToWorker());
            if (servletContainer.isPerMessageDeflate()) {
                PerMessageDeflateHandshake perMessageDeflate = new PerMessageDeflateHandshake(false, servletContainer.getDeflaterLevel());
                webSocketDeploymentInfo.addExtension(perMessageDeflate);
            }
            final AtomicReference<ServerActivity> serverActivity = new AtomicReference<>();
            webSocketDeploymentInfo.addListener(wsc -> {
                serverActivity.set(new ServerActivity() {

                    @Override
                    public void preSuspend(ServerActivityCallback listener) {
                        listener.done();
                    }

                    @Override
                    public void suspended(final ServerActivityCallback listener) {
                        if (wsc.getConfiguredServerEndpoints().isEmpty()) {
                            listener.done();
                            return;
                        }
                        wsc.pause(new ServerWebSocketContainer.PauseListener() {

                            @Override
                            public void paused() {
                                listener.done();
                            }

                            @Override
                            public void resumed() {
                            }
                        });
                    }

                    @Override
                    public void resume() {
                        wsc.resume();
                    }
                });
                suspendControllerInjectedValue.getValue().registerActivity(serverActivity.get());
            });
            ServletContextListener sl = new ServletContextListener() {

                @Override
                public void contextInitialized(ServletContextEvent sce) {
                }

                @Override
                public void contextDestroyed(ServletContextEvent sce) {
                    final ServerActivity activity = serverActivity.get();
                    if (activity != null) {
                        suspendControllerInjectedValue.getValue().unRegisterActivity(activity);
                    }
                }
            };
            d.addListener(new ListenerInfo(sl.getClass(), new ImmediateInstanceFactory<EventListener>(sl)));
            d.addServletContextAttribute(WebSocketDeploymentInfo.ATTRIBUTE_NAME, webSocketDeploymentInfo);
        }
        if (mergedMetaData.getLocalEncodings() != null && mergedMetaData.getLocalEncodings().getMappings() != null) {
            for (LocaleEncodingMetaData locale : mergedMetaData.getLocalEncodings().getMappings()) {
                d.addLocaleCharsetMapping(locale.getLocale(), locale.getEncoding());
            }
        }
        if (predicatedHandlers != null && !predicatedHandlers.isEmpty()) {
            d.addOuterHandlerChainWrapper(new RewriteCorrectingHandlerWrappers.PostWrapper());
            d.addOuterHandlerChainWrapper(new HandlerWrapper() {

                @Override
                public HttpHandler wrap(HttpHandler handler) {
                    if (predicatedHandlers.size() == 1) {
                        PredicatedHandler ph = predicatedHandlers.get(0);
                        return Handlers.predicate(ph.getPredicate(), ph.getHandler().wrap(handler), handler);
                    } else {
                        return Handlers.predicates(predicatedHandlers, handler);
                    }
                }
            });
            d.addOuterHandlerChainWrapper(new RewriteCorrectingHandlerWrappers.PreWrapper());
        }
        if (mergedMetaData.getDefaultEncoding() != null) {
            d.setDefaultEncoding(mergedMetaData.getDefaultEncoding());
        } else if (servletContainer.getDefaultEncoding() != null) {
            d.setDefaultEncoding(servletContainer.getDefaultEncoding());
        }
        d.setCrawlerSessionManagerConfig(servletContainer.getCrawlerSessionManagerConfig());
        return d;
    } catch (ClassNotFoundException e) {
        throw new StartException(e);
    }
}