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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.syncope.client.console.pages;
20  
21  import java.io.Serializable;
22  import java.lang.reflect.Constructor;
23  import java.time.Duration;
24  import java.util.List;
25  import java.util.stream.StreamSupport;
26  import org.apache.commons.lang3.StringUtils;
27  import org.apache.commons.lang3.tuple.Pair;
28  import org.apache.syncope.client.console.BookmarkablePageLinkBuilder;
29  import org.apache.syncope.client.console.SyncopeConsoleSession;
30  import org.apache.syncope.client.console.SyncopeWebApplication;
31  import org.apache.syncope.client.console.annotations.AMPage;
32  import org.apache.syncope.client.console.annotations.IdMPage;
33  import org.apache.syncope.client.console.panels.DelegationSelectionPanel;
34  import org.apache.syncope.client.console.rest.SyncopeRestClient;
35  import org.apache.syncope.client.console.wicket.markup.head.MetaHeaderItem;
36  import org.apache.syncope.client.console.wicket.markup.html.form.IndicatingOnConfirmAjaxLink;
37  import org.apache.syncope.client.console.widgets.ExtAlertWidget;
38  import org.apache.syncope.client.ui.commons.Constants;
39  import org.apache.syncope.client.ui.commons.HttpResourceStream;
40  import org.apache.syncope.client.ui.commons.ajax.form.IndicatorAjaxFormComponentUpdatingBehavior;
41  import org.apache.syncope.client.ui.commons.annotations.ExtPage;
42  import org.apache.syncope.client.ui.commons.pages.BaseWebPage;
43  import org.apache.syncope.client.ui.commons.rest.ResponseHolder;
44  import org.apache.syncope.common.lib.SyncopeConstants;
45  import org.apache.syncope.common.lib.info.SystemInfo;
46  import org.apache.syncope.common.lib.types.IdRepoEntitlement;
47  import org.apache.wicket.AttributeModifier;
48  import org.apache.wicket.Component;
49  import org.apache.wicket.Page;
50  import org.apache.wicket.PageReference;
51  import org.apache.wicket.ajax.AjaxRequestTarget;
52  import org.apache.wicket.ajax.attributes.AjaxCallListener;
53  import org.apache.wicket.ajax.attributes.AjaxRequestAttributes;
54  import org.apache.wicket.ajax.markup.html.AjaxLink;
55  import org.apache.wicket.authroles.authorization.strategies.role.metadata.MetaDataRoleAuthorizationStrategy;
56  import org.apache.wicket.behavior.AttributeAppender;
57  import org.apache.wicket.behavior.Behavior;
58  import org.apache.wicket.markup.ComponentTag;
59  import org.apache.wicket.markup.head.HeaderItem;
60  import org.apache.wicket.markup.head.IHeaderResponse;
61  import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
62  import org.apache.wicket.markup.head.PriorityHeaderItem;
63  import org.apache.wicket.markup.html.WebMarkupContainer;
64  import org.apache.wicket.markup.html.WebPage;
65  import org.apache.wicket.markup.html.basic.Label;
66  import org.apache.wicket.markup.html.form.TextField;
67  import org.apache.wicket.markup.html.link.BookmarkablePageLink;
68  import org.apache.wicket.markup.html.link.Link;
69  import org.apache.wicket.markup.html.list.ListItem;
70  import org.apache.wicket.markup.html.list.ListView;
71  import org.apache.wicket.model.Model;
72  import org.apache.wicket.model.ResourceModel;
73  import org.apache.wicket.request.handler.resource.ResourceStreamRequestHandler;
74  import org.apache.wicket.request.mapper.parameter.PageParameters;
75  import org.apache.wicket.request.resource.ContentDisposition;
76  import org.apache.wicket.spring.injection.annot.SpringBean;
77  
78  public class BasePage extends BaseWebPage {
79  
80      private static final long serialVersionUID = 1571997737305598502L;
81  
82      protected static final HeaderItem META_IE_EDGE = new MetaHeaderItem("X-UA-Compatible", "IE=edge");
83  
84      @SpringBean
85      protected SyncopeRestClient syncopeRestClient;
86  
87      public BasePage() {
88          this(null);
89      }
90  
91      public BasePage(final PageParameters parameters) {
92          super(parameters);
93  
94          Serializable leftMenuCollapse = SyncopeConsoleSession.get().getAttribute(Constants.MENU_COLLAPSE);
95          if ((leftMenuCollapse instanceof Boolean) && ((Boolean) leftMenuCollapse)) {
96              body.add(new AttributeAppender("class", " sidebar-collapse"));
97          }
98          add(body);
99  
100         // header, footer
101         String username = SyncopeConsoleSession.get().getSelfTO().getUsername();
102         if (SyncopeConsoleSession.get().getDelegatedBy() != null) {
103             username += " (" + SyncopeConsoleSession.get().getDelegatedBy() + ")";
104         }
105         body.add(new Label("username", username));
106 
107         // right sidebar
108         Pair<String, String> gitAndBuildInfo = SyncopeConsoleSession.get().gitAndBuildInfo();
109         Label version = new Label("version", gitAndBuildInfo.getRight());
110         String versionLink = StringUtils.isNotBlank(gitAndBuildInfo.getLeft())
111                 && gitAndBuildInfo.getRight().endsWith("-SNAPSHOT")
112                 ? "https://gitbox.apache.org/repos/asf?p=syncope.git;a=commit;h="
113                 + gitAndBuildInfo.getLeft()
114                 : "https://cwiki.apache.org/confluence/display/SYNCOPE/Maggiore";
115         version.add(new AttributeModifier("onclick", "window.open('" + versionLink + "', '_blank')"));
116         body.add(version);
117 
118         SystemInfo systemInfo = SyncopeConsoleSession.get().getSystemInfo();
119         body.add(new Label("hostname", systemInfo.getHostname()));
120         body.add(new Label("processors", systemInfo.getAvailableProcessors()));
121         body.add(new Label("os", systemInfo.getOs()));
122         body.add(new Label("jvm", systemInfo.getJvm()));
123 
124         Model<Integer> tableThresholdModel = Model.of(100);
125         body.add(new TextField<>("tableThreshold", tableThresholdModel).add(
126                 new IndicatorAjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) {
127 
128             private static final long serialVersionUID = -1107858522700306810L;
129 
130             @Override
131             protected void onUpdate(final AjaxRequestTarget target) {
132                 // nothing to do
133             }
134         }));
135 
136         Link<Void> dbExportLink = new Link<>("dbExportLink") {
137 
138             private static final long serialVersionUID = -4331619903296515985L;
139 
140             @Override
141             public void onClick() {
142                 try {
143                     HttpResourceStream stream = new HttpResourceStream(new ResponseHolder(
144                             syncopeRestClient.exportInternalStorageContent(tableThresholdModel.getObject())));
145 
146                     ResourceStreamRequestHandler rsrh = new ResourceStreamRequestHandler(stream);
147                     rsrh.setFileName(stream.getFilename() == null
148                             ? SyncopeConsoleSession.get().getDomain() + "Content.xml"
149                             : stream.getFilename());
150                     rsrh.setContentDisposition(ContentDisposition.ATTACHMENT);
151                     rsrh.setCacheDuration(Duration.ZERO);
152 
153                     getRequestCycle().scheduleRequestHandlerAfterCurrent(rsrh);
154                 } catch (Exception e) {
155                     SyncopeConsoleSession.get().onException(e);
156                 }
157             }
158         };
159         MetaDataRoleAuthorizationStrategy.authorize(dbExportLink, WebPage.RENDER, IdRepoEntitlement.KEYMASTER);
160         body.add(dbExportLink);
161 
162         // menu
163         WebMarkupContainer liContainer = new WebMarkupContainer(getLIContainerId("dashboard"));
164         body.add(liContainer);
165         liContainer.add(BookmarkablePageLinkBuilder.build("dashboard", Dashboard.class));
166 
167         liContainer = new WebMarkupContainer(getLIContainerId("realms"));
168         body.add(liContainer);
169 
170         BookmarkablePageLink<? extends BasePage> link = BookmarkablePageLinkBuilder.build("realms", Realms.class);
171         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.REALM_SEARCH);
172 
173         liContainer.add(link);
174 
175         liContainer = new WebMarkupContainer(getLIContainerId("engagements"));
176         body.add(liContainer);
177         link = BookmarkablePageLinkBuilder.build("engagements", Engagements.class);
178         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER,
179                 String.format("%s,%s", IdRepoEntitlement.TASK_LIST, IdRepoEntitlement.IMPLEMENTATION_LIST));
180         liContainer.add(link);
181 
182         liContainer = new WebMarkupContainer(getLIContainerId("reports"));
183         body.add(liContainer);
184         link = BookmarkablePageLinkBuilder.build("reports", Reports.class);
185         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.REPORT_LIST);
186         liContainer.add(link);
187 
188         List<Class<? extends BasePage>> idmPageClasses = SyncopeWebApplication.get().getLookup().getIdMPageClasses();
189         ListView<Class<? extends BasePage>> idmPages = new ListView<>("idmPages", idmPageClasses) {
190 
191             private static final long serialVersionUID = 4949588177564901031L;
192 
193             @Override
194             protected void populateItem(final ListItem<Class<? extends BasePage>> item) {
195                 WebMarkupContainer containingLI = new WebMarkupContainer("idmPageLI");
196                 item.add(containingLI);
197 
198                 IdMPage ann = item.getModelObject().getAnnotation(IdMPage.class);
199 
200                 BookmarkablePageLink<Page> link = new BookmarkablePageLink<>("idmPage", item.getModelObject());
201                 link.add(new Label("idmPageLabel", ann.label()));
202                 if (StringUtils.isNotBlank(ann.listEntitlement())) {
203                     MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, ann.listEntitlement());
204                 }
205                 if (item.getModelObject().equals(BasePage.this.getClass())) {
206                     link.add(new Behavior() {
207 
208                         private static final long serialVersionUID = 1469628524240283489L;
209 
210                         @Override
211                         public void onComponentTag(final Component component, final ComponentTag tag) {
212                             tag.append("class", "active", " ");
213                         }
214                     });
215                 }
216                 containingLI.add(link);
217 
218                 Label idmPageIcon = new Label("idmPageIcon");
219                 idmPageIcon.add(new AttributeModifier("class", "nav-icon " + ann.icon()));
220                 link.add(idmPageIcon);
221             }
222         };
223         idmPages.setRenderBodyOnly(true);
224         idmPages.setOutputMarkupId(true);
225         body.add(idmPages);
226 
227         List<Class<? extends BasePage>> amPageClasses = SyncopeWebApplication.get().getLookup().getAMPageClasses();
228         ListView<Class<? extends BasePage>> amPages = new ListView<>("amPages", amPageClasses) {
229 
230             private static final long serialVersionUID = -9112553137618363167L;
231 
232             @Override
233             protected void populateItem(final ListItem<Class<? extends BasePage>> item) {
234                 WebMarkupContainer containingLI = new WebMarkupContainer("amPageLI");
235                 item.add(containingLI);
236 
237                 AMPage ann = item.getModelObject().getAnnotation(AMPage.class);
238 
239                 BookmarkablePageLink<Page> link = new BookmarkablePageLink<>("amPage", item.getModelObject());
240                 link.add(new Label("amPageLabel", ann.label()));
241                 if (StringUtils.isNotBlank(ann.listEntitlement())) {
242                     MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, ann.listEntitlement());
243                 }
244                 if (item.getModelObject().equals(BasePage.this.getClass())) {
245                     link.add(new Behavior() {
246 
247                         private static final long serialVersionUID = 1469628524240283489L;
248 
249                         @Override
250                         public void onComponentTag(final Component component, final ComponentTag tag) {
251                             tag.append("class", "active", " ");
252                         }
253                     });
254                 }
255                 containingLI.add(link);
256 
257                 Label amPageIcon = new Label("amPageIcon");
258                 amPageIcon.add(new AttributeModifier("class", "nav-icon " + ann.icon()));
259                 link.add(amPageIcon);
260             }
261         };
262         amPages.setRenderBodyOnly(true);
263         amPages.setOutputMarkupId(true);
264         body.add(amPages);
265 
266         WebMarkupContainer keymasterLIContainer = new WebMarkupContainer(getLIContainerId("keymaster"));
267         body.add(keymasterLIContainer);
268         WebMarkupContainer keymasterULContainer = new WebMarkupContainer(getULContainerId("keymaster"));
269         keymasterLIContainer.add(keymasterULContainer);
270 
271         liContainer = new WebMarkupContainer(getLIContainerId("domains"));
272         keymasterULContainer.add(liContainer);
273         link = BookmarkablePageLinkBuilder.build("domains", Domains.class);
274         liContainer.add(link);
275         if (SyncopeConstants.MASTER_DOMAIN.equals(SyncopeConsoleSession.get().getDomain())) {
276             MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.KEYMASTER);
277         } else {
278             link.setOutputMarkupPlaceholderTag(true).setEnabled(false).setVisible(false);
279         }
280 
281         liContainer = new WebMarkupContainer(getLIContainerId("networkservices"));
282         keymasterULContainer.add(liContainer);
283         link = BookmarkablePageLinkBuilder.build("networkservices", NetworkServices.class);
284         liContainer.add(link);
285         if (SyncopeConstants.MASTER_DOMAIN.equals(SyncopeConsoleSession.get().getDomain())) {
286             MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.KEYMASTER);
287         } else {
288             link.setOutputMarkupPlaceholderTag(true).setEnabled(false).setVisible(false);
289         }
290 
291         liContainer = new WebMarkupContainer(getLIContainerId("parameters"));
292         keymasterULContainer.add(liContainer);
293         link = BookmarkablePageLinkBuilder.build("parameters", Parameters.class);
294         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.KEYMASTER);
295         liContainer.add(link);
296 
297         WebMarkupContainer confLIContainer = new WebMarkupContainer(getLIContainerId("configuration"));
298         body.add(confLIContainer);
299         WebMarkupContainer confULContainer = new WebMarkupContainer(getULContainerId("configuration"));
300         confLIContainer.add(confULContainer);
301 
302         liContainer = new WebMarkupContainer(getLIContainerId("audit"));
303         confULContainer.add(liContainer);
304         link = BookmarkablePageLinkBuilder.build("audit", Audit.class);
305         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.AUDIT_LIST);
306         liContainer.add(link);
307 
308         liContainer = new WebMarkupContainer(getLIContainerId("implementations"));
309         confULContainer.add(liContainer);
310         link = BookmarkablePageLinkBuilder.build("implementations", Implementations.class);
311         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.IMPLEMENTATION_LIST);
312         liContainer.add(link);
313 
314         liContainer = new WebMarkupContainer(getLIContainerId("logs"));
315         confULContainer.add(liContainer);
316         link = BookmarkablePageLinkBuilder.build("logs", Logs.class);
317         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.LOGGER_LIST);
318         liContainer.add(link);
319 
320         liContainer = new WebMarkupContainer(getLIContainerId("types"));
321         confULContainer.add(liContainer);
322         link = BookmarkablePageLinkBuilder.build("types", Types.class);
323         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.ANYTYPECLASS_LIST);
324         liContainer.add(link);
325 
326         liContainer = new WebMarkupContainer(getLIContainerId("security"));
327         confULContainer.add(liContainer);
328         link = BookmarkablePageLinkBuilder.build("security", Security.class);
329         liContainer.add(link);
330 
331         liContainer = new WebMarkupContainer(getLIContainerId("policies"));
332         confULContainer.add(liContainer);
333         link = BookmarkablePageLinkBuilder.build("policies", Policies.class);
334         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.POLICY_LIST);
335         liContainer.add(link);
336 
337         liContainer = new WebMarkupContainer(getLIContainerId("notifications"));
338         confULContainer.add(liContainer);
339         link = BookmarkablePageLinkBuilder.build("notifications", Notifications.class);
340         MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, IdRepoEntitlement.NOTIFICATION_LIST);
341         liContainer.add(link);
342 
343         body.add(new AjaxLink<Void>("collapse") {
344 
345             private static final long serialVersionUID = -7978723352517770644L;
346 
347             @Override
348             public void onClick(final AjaxRequestTarget target) {
349                 SyncopeConsoleSession.get().setAttribute(Constants.MENU_COLLAPSE,
350                         SyncopeConsoleSession.get().getAttribute(Constants.MENU_COLLAPSE) == null
351                         ? true
352                         : !(Boolean) SyncopeConsoleSession.get().getAttribute(Constants.MENU_COLLAPSE));
353             }
354         });
355 
356         body.add(new Label("domain", SyncopeConsoleSession.get().getDomain()));
357 
358         WebMarkupContainer delegationsContainer = new WebMarkupContainer("delegationsContainer");
359         body.add(delegationsContainer.setOutputMarkupPlaceholderTag(true).
360                 setVisible(!SyncopeConsoleSession.get().getDelegations().isEmpty()));
361         delegationsContainer.add(new Label("delegationsHeader", new ResourceModel("delegations")));
362         delegationsContainer.add(new ListView<>("delegations", SyncopeConsoleSession.get().getDelegations()) {
363 
364             private static final long serialVersionUID = -9112553137618363167L;
365 
366             @Override
367             protected void populateItem(final ListItem<String> item) {
368                 item.add(new DelegationSelectionPanel("delegation", item.getModelObject()));
369             }
370         });
371 
372         body.add(new IndicatingOnConfirmAjaxLink<String>("endDelegation", "confirmDelegation", true) {
373 
374             private static final long serialVersionUID = 1632838687547839512L;
375 
376             @Override
377             public void onClick(final AjaxRequestTarget target) {
378                 SyncopeConsoleSession.get().setDelegatedBy(null);
379                 setResponsePage(Dashboard.class);
380             }
381         }.setOutputMarkupId(true).setOutputMarkupPlaceholderTag(true).
382                 setVisible(SyncopeConsoleSession.get().getDelegatedBy() != null));
383 
384         @SuppressWarnings("unchecked")
385         Class<? extends WebPage> beforeLogout = (Class<? extends WebPage>) SyncopeConsoleSession.get().
386                 getAttribute(Constants.BEFORE_LOGOUT_PAGE);
387         if (beforeLogout == null) {
388             body.add(new BookmarkablePageLink<>("logout", Logout.class));
389         } else {
390             body.add(new AjaxLink<Page>("logout") {
391 
392                 private static final long serialVersionUID = -7978723352517770644L;
393 
394                 @Override
395                 protected void updateAjaxAttributes(final AjaxRequestAttributes attributes) {
396                     super.updateAjaxAttributes(attributes);
397 
398                     AjaxCallListener ajaxCallListener = new AjaxCallListener();
399                     ajaxCallListener.onPrecondition("return confirm('" + getString("confirmGlobalLogout") + "');");
400                     attributes.getAjaxCallListeners().add(ajaxCallListener);
401                 }
402 
403                 @Override
404                 public void onClick(final AjaxRequestTarget target) {
405                     setResponsePage(beforeLogout);
406                 }
407             });
408         }
409 
410         // set 'active' menu item for everything but extensions
411         // 1. check if current class is set to top-level menu
412         WebMarkupContainer containingLI = (WebMarkupContainer) body.get(
413                 getLIContainerId(getClass().getSimpleName().toLowerCase()));
414         // 2. if not, check if it is under 'Keymaster'
415         if (containingLI == null) {
416             containingLI = (WebMarkupContainer) keymasterULContainer.get(
417                     getLIContainerId(getClass().getSimpleName().toLowerCase()));
418         }
419         // 3. if not, check if it is under 'Configuration'
420         if (containingLI == null) {
421             containingLI = (WebMarkupContainer) confULContainer.get(
422                     getLIContainerId(getClass().getSimpleName().toLowerCase()));
423         }
424         // 4. when found, set CSS coordinates for menu
425         if (containingLI != null) {
426             StreamSupport.stream(containingLI.spliterator(), false).filter(Link.class::isInstance).
427                     forEach(child -> child.add(new Behavior() {
428 
429                 private static final long serialVersionUID = -5775607340182293596L;
430 
431                 @Override
432                 public void onComponentTag(final Component component, final ComponentTag tag) {
433                     tag.append("class", "active", " ");
434                 }
435             }));
436 
437             if (keymasterULContainer.getId().equals(containingLI.getParent().getId())) {
438                 keymasterULContainer.add(new Behavior() {
439 
440                     private static final long serialVersionUID = -5775607340182293596L;
441 
442                     @Override
443                     public void renderHead(final Component component, final IHeaderResponse response) {
444                         response.render(OnDomReadyHeaderItem.forScript(
445                                 "$('#keymasterLink').addClass('active')"));
446                     }
447 
448                     @Override
449                     public void onComponentTag(final Component component, final ComponentTag tag) {
450                         tag.put("class", "nav nav-treeview");
451                         tag.put("style", "display: block;");
452                     }
453                 });
454 
455                 keymasterLIContainer.add(new Behavior() {
456 
457                     private static final long serialVersionUID = -5775607340182293596L;
458 
459                     @Override
460                     public void onComponentTag(final Component component, final ComponentTag tag) {
461                         tag.put("class", "nav-item has-treeview menu-open");
462                     }
463                 });
464             } else if (confULContainer.getId().equals(containingLI.getParent().getId())) {
465                 confULContainer.add(new Behavior() {
466 
467                     private static final long serialVersionUID = 3109256773218160485L;
468 
469                     @Override
470                     public void renderHead(final Component component, final IHeaderResponse response) {
471                         response.render(OnDomReadyHeaderItem.forScript(
472                                 "$('#configurationLink').addClass('active')"));
473                     }
474 
475                     @Override
476                     public void onComponentTag(final Component component, final ComponentTag tag) {
477                         tag.put("class", "nav nav-treeview");
478                         tag.put("style", "display: block;");
479                     }
480                 });
481 
482                 confLIContainer.add(new Behavior() {
483 
484                     private static final long serialVersionUID = 3109256773218160485L;
485 
486                     @Override
487                     public void onComponentTag(final Component component, final ComponentTag tag) {
488                         tag.put("class", "nav-item has-treeview menu-open");
489                     }
490                 });
491             }
492         }
493 
494         // Extensions
495         List<Class<? extends ExtAlertWidget<?>>> extAlertWidgetClasses =
496                 SyncopeWebApplication.get().getLookup().getExtAlertWidgetClasses();
497         ListView<Class<? extends ExtAlertWidget<?>>> extAlertWidgets = new ListView<>(
498                 "extAlertWidgets", extAlertWidgetClasses) {
499 
500             private static final long serialVersionUID = -9112553137618363167L;
501 
502             @Override
503             protected void populateItem(final ListItem<Class<? extends ExtAlertWidget<?>>> item) {
504                 try {
505                     Constructor<? extends ExtAlertWidget<?>> constructor =
506                             item.getModelObject().getDeclaredConstructor(String.class, PageReference.class);
507                     ExtAlertWidget<?> widget = constructor.newInstance("extAlertWidget", getPageReference());
508 
509                     SyncopeConsoleSession.get().setAttribute(widget.getClass().getName(), widget);
510 
511                     item.add(widget.setRenderBodyOnly(true));
512                 } catch (Exception e) {
513                     LOG.error("Could not instantiate {}", item.getModelObject().getName(), e);
514                 }
515             }
516         };
517         body.add(extAlertWidgets);
518 
519         List<Class<? extends BaseExtPage>> extPageClasses =
520                 SyncopeWebApplication.get().getLookup().getClasses(BaseExtPage.class);
521 
522         WebMarkupContainer extensionsLI = new WebMarkupContainer(getLIContainerId("extensions"));
523         extensionsLI.setOutputMarkupPlaceholderTag(true);
524         extensionsLI.setVisible(!extPageClasses.isEmpty());
525         body.add(extensionsLI);
526 
527         ListView<Class<? extends BaseExtPage>> extPages =
528                 new ListView<>("extPages", extPageClasses) {
529 
530             private static final long serialVersionUID = 4949588177564901031L;
531 
532             @Override
533             protected void populateItem(final ListItem<Class<? extends BaseExtPage>> item) {
534                 WebMarkupContainer containingLI = new WebMarkupContainer("extPageLI");
535                 item.add(containingLI);
536 
537                 ExtPage ann = item.getModelObject().getAnnotation(ExtPage.class);
538 
539                 BookmarkablePageLink<Page> link = new BookmarkablePageLink<>("extPage", item.getModelObject());
540                 link.add(new Label("extPageLabel", ann.label()));
541                 if (StringUtils.isNotBlank(ann.listEntitlement())) {
542                     MetaDataRoleAuthorizationStrategy.authorize(link, WebPage.RENDER, ann.listEntitlement());
543                 }
544                 if (item.getModelObject().equals(BasePage.this.getClass())) {
545                     link.add(new Behavior() {
546 
547                         private static final long serialVersionUID = 1469628524240283489L;
548 
549                         @Override
550                         public void renderHead(final Component component, final IHeaderResponse response) {
551                             response.render(OnDomReadyHeaderItem.forScript(
552                                     "$('#extensionsLink').addClass('active')"));
553                         }
554 
555                         @Override
556                         public void onComponentTag(final Component component, final ComponentTag tag) {
557                             tag.append("class", "active", " ");
558                         }
559                     });
560                 }
561                 containingLI.add(link);
562 
563                 Label extPageIcon = new Label("extPageIcon");
564                 extPageIcon.add(new AttributeModifier("class", "nav-icon " + ann.icon()));
565                 link.add(extPageIcon);
566             }
567         };
568         extPages.setRenderBodyOnly(true);
569         extPages.setOutputMarkupId(true);
570         extensionsLI.add(extPages);
571 
572         if (getPage() instanceof BaseExtPage) {
573             extPages.add(new Behavior() {
574 
575                 private static final long serialVersionUID = 1469628524240283489L;
576 
577                 @Override
578                 public void onComponentTag(final Component component, final ComponentTag tag) {
579                     tag.put("class", "nav nav-treeview");
580                     tag.put("style", "display: block;");
581                 }
582             });
583 
584             extensionsLI.add(new Behavior() {
585 
586                 private static final long serialVersionUID = 1469628524240283489L;
587 
588                 @Override
589                 public void onComponentTag(final Component component, final ComponentTag tag) {
590                     tag.put("class", "nav-item has-treeview menu-open");
591                 }
592             });
593         }
594     }
595 
596     @Override
597     public void renderHead(final IHeaderResponse response) {
598         super.renderHead(response);
599         response.render(new PriorityHeaderItem(META_IE_EDGE));
600     }
601 
602     private static String getLIContainerId(final String linkId) {
603         return linkId + "LI";
604     }
605 
606     private static String getULContainerId(final String linkId) {
607         return linkId + "UL";
608     }
609 }