Examples with TreeEvaluation org.olat.course.run.userview.TreeEvaluation used on opensource projects

Example 6 with TreeEvaluation

use of org.olat.course.run.userview.TreeEvaluation in project openolat by klemens.

the class FeedMediaDispatcher method hasAccess.

/**
 * Verifies the access of an identity to a course node.
 *
 * @param identity
 * @param token
 * @param course
 * @param node
 * @return True if the identity has access to the node in the given course.
 *         False otherwise.
 */
private boolean hasAccess(Identity identity, String token, ICourse course, CourseNode node) {
    boolean hasAccess = false;
    final RepositoryManager resMgr = RepositoryManager.getInstance();
    final RepositoryEntry repoEntry = resMgr.lookupRepositoryEntry(course, false);
    if (allowsGuestAccess(repoEntry)) {
        hasAccess = true;
    } else {
        IdentityEnvironment ienv = new IdentityEnvironment();
        ienv.setIdentity(identity);
        Roles roles = BaseSecurityManager.getInstance().getRoles(identity);
        ienv.setRoles(roles);
        UserCourseEnvironment userCourseEnv = new UserCourseEnvironmentImpl(ienv, course.getCourseEnvironment());
        // Build an evaluation tree
        TreeEvaluation treeEval = new TreeEvaluation();
        NodeEvaluation nodeEval = node.eval(userCourseEnv.getConditionInterpreter(), treeEval, new VisibleTreeFilter());
        if (nodeEval.isVisible() && validAuthentication(identity, token)) {
            hasAccess = true;
        }
    }
    return hasAccess;
}

Example 7 with TreeEvaluation

use of org.olat.course.run.userview.TreeEvaluation in project openolat by klemens.

the class CourseIndexer method checkAccess.

@Override
public boolean checkAccess(ContextEntry contextEntry, BusinessControl businessControl, Identity identity, Roles roles) {
    ContextEntry bcContextEntry = businessControl.popLauncherContextEntry();
    if (bcContextEntry == null) {
        // not a course node of course we have access to the course metadata
        return true;
    }
    if (isLogDebugEnabled())
        logDebug("Start identity=" + identity + "  roles=" + roles);
    Long repositoryKey = contextEntry.getOLATResourceable().getResourceableId();
    RepositoryEntry repositoryEntry = repositoryManager.lookupRepositoryEntry(repositoryKey);
    if (isLogDebugEnabled())
        logDebug("repositoryEntry=" + repositoryEntry);
    if (roles.isGuestOnly()) {
        if (repositoryEntry.getAccess() != RepositoryEntry.ACC_USERS_GUESTS) {
            return false;
        }
    }
    Long nodeId = bcContextEntry.getOLATResourceable().getResourceableId();
    if (isLogDebugEnabled())
        logDebug("nodeId=" + nodeId);
    ICourse course = CourseFactory.loadCourse(repositoryEntry);
    IdentityEnvironment ienv = new IdentityEnvironment();
    ienv.setIdentity(identity);
    ienv.setRoles(roles);
    UserCourseEnvironment userCourseEnv = new UserCourseEnvironmentImpl(ienv, course.getCourseEnvironment());
    if (isLogDebugEnabled())
        logDebug("userCourseEnv=" + userCourseEnv + "ienv=" + ienv);
    CourseNode rootCn = userCourseEnv.getCourseEnvironment().getRunStructure().getRootNode();
    String nodeIdS = nodeId.toString();
    CourseNode courseNode = course.getRunStructure().getNode(nodeIdS);
    if (isLogDebugEnabled())
        logDebug("courseNode=" + courseNode);
    TreeEvaluation treeEval = new TreeEvaluation();
    NodeEvaluation rootNodeEval = rootCn.eval(userCourseEnv.getConditionInterpreter(), treeEval, new VisibleTreeFilter());
    if (isLogDebugEnabled())
        logDebug("rootNodeEval=" + rootNodeEval);
    TreeNode newCalledTreeNode = treeEval.getCorrespondingTreeNode(courseNode);
    if (newCalledTreeNode == null) {
        // TreeNode no longer visible
        return false;
    }
    // go further
    NodeEvaluation nodeEval = (NodeEvaluation) newCalledTreeNode.getUserObject();
    if (isLogDebugEnabled())
        logDebug("nodeEval=" + nodeEval);
    if (nodeEval.getCourseNode() != courseNode)
        throw new AssertException("error in structure");
    if (!nodeEval.isVisible())
        throw new AssertException("node eval not visible!!");
    if (isLogDebugEnabled())
        logDebug("call mayAccessWholeTreeUp...");
    boolean mayAccessWholeTreeUp = NavigationHandler.mayAccessWholeTreeUp(nodeEval);
    if (isLogDebugEnabled())
        logDebug("call mayAccessWholeTreeUp=" + mayAccessWholeTreeUp);
    if (mayAccessWholeTreeUp) {
        CourseNodeIndexer courseNodeIndexer = getCourseNodeIndexer(courseNode);
        bcContextEntry.setTransientState(new CourseNodeEntry(courseNode));
        return courseNodeIndexer.checkAccess(bcContextEntry, businessControl, identity, roles) && super.checkAccess(bcContextEntry, businessControl, identity, roles);
    } else {
        return false;
    }
}

Example 8 with TreeEvaluation

use of org.olat.course.run.userview.TreeEvaluation in project openolat by klemens.

the class MergedCourseContainer method init.

protected void init(PersistingCourseImpl persistingCourse) {
    super.init();
    RepositoryEntry courseRe = persistingCourse.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
    courseReadOnly = !overrideReadOnly && (courseRe.getRepositoryEntryStatus().isClosed() || courseRe.getRepositoryEntryStatus().isUnpublished());
    if (courseReadOnly) {
        setLocalSecurityCallback(new ReadOnlyCallback());
    }
    if (identityEnv == null || identityEnv.getRoles().isOLATAdmin()) {
        VFSContainer courseContainer = persistingCourse.getIsolatedCourseFolder();
        if (courseReadOnly) {
            courseContainer.setLocalSecurityCallback(new ReadOnlyCallback());
        }
        addContainersChildren(courseContainer, true);
    } else {
        RepositoryEntry re = persistingCourse.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
        RepositoryEntrySecurity reSecurity = RepositoryManager.getInstance().isAllowed(identityEnv.getIdentity(), identityEnv.getRoles(), re);
        if (reSecurity.isEntryAdmin()) {
            VFSContainer courseContainer = persistingCourse.getIsolatedCourseFolder();
            if (courseReadOnly) {
                courseContainer.setLocalSecurityCallback(new ReadOnlyCallback());
            }
            addContainersChildren(courseContainer, true);
        }
    }
    initSharedFolder(persistingCourse);
    // add all course building blocks of type BC to a virtual folder
    MergeSource nodesContainer = new MergeSource(null, "_courseelementdata");
    if (identityEnv == null) {
        CourseNode rootNode = persistingCourse.getRunStructure().getRootNode();
        addFoldersForAdmin(persistingCourse, nodesContainer, rootNode);
    } else {
        TreeEvaluation treeEval = new TreeEvaluation();
        GenericTreeModel treeModel = new GenericTreeModel();
        UserCourseEnvironment userCourseEnv = new UserCourseEnvironmentImpl(identityEnv, persistingCourse.getCourseEnvironment());
        CourseNode rootCn = userCourseEnv.getCourseEnvironment().getRunStructure().getRootNode();
        NodeEvaluation rootNodeEval = rootCn.eval(userCourseEnv.getConditionInterpreter(), treeEval, new VisibleTreeFilter());
        TreeNode treeRoot = rootNodeEval.getTreeNode();
        treeModel.setRootNode(treeRoot);
        addFolders(persistingCourse, nodesContainer, treeRoot);
    }
    if (nodesContainer.getItems().size() > 0) {
        addContainer(nodesContainer);
    }
}

Example 9 with TreeEvaluation

use of org.olat.course.run.userview.TreeEvaluation in project openolat by klemens.

the class CourseSite method createController.

@Override
protected MainLayoutController createController(UserRequest ureq, WindowControl wControl, SiteConfiguration config) {
    RepositoryManager rm = RepositoryManager.getInstance();
    RepositoryService rs = CoreSpringFactory.getImpl(RepositoryService.class);
    RepositoryEntry entry = rm.lookupRepositoryEntryBySoftkey(repositorySoftKey, false);
    if (entry == null) {
        return getAlternativeController(ureq, wControl, config);
    }
    MainLayoutController c;
    ICourse course = CourseFactory.loadCourse(entry);
    UserSession usess = ureq.getUserSession();
    // course-launch-state depending course-settings
    RepositoryEntrySecurity reSecurity = rm.isAllowed(ureq, entry);
    boolean isAllowedToLaunch = reSecurity.canLaunch();
    boolean hasAccess = false;
    if (isAllowedToLaunch) {
        // either check with securityCallback or use access-settings from course-nodes
        if (siteSecCallback != null) {
            hasAccess = siteSecCallback.isAllowedToLaunchSite(ureq);
        } else if (usess.isInAssessmentModeProcess() && !usess.matchLockResource(course)) {
            hasAccess = false;
        } else {
            // check within course: accessibility of course root node
            CourseNode rootNode = course.getRunStructure().getRootNode();
            UserCourseEnvironmentImpl uce = new UserCourseEnvironmentImpl(ureq.getUserSession().getIdentityEnvironment(), course.getCourseEnvironment());
            NodeEvaluation nodeEval = rootNode.eval(uce.getConditionInterpreter(), new TreeEvaluation(), new VisibleTreeFilter());
            boolean mayAccessWholeTreeUp = NavigationHandler.mayAccessWholeTreeUp(nodeEval);
            hasAccess = mayAccessWholeTreeUp && nodeEval.isVisible();
        }
    }
    // load course (admins always see content) or alternative controller if course is not launchable
    if (hasAccess || usess.getRoles().isOLATAdmin()) {
        rs.incrementLaunchCounter(entry);
        // build up the context path for linked course
        WindowControl bwControl = BusinessControlFactory.getInstance().createBusinessWindowControl(ureq, entry, new StateSite(this), wControl, true);
        CourseRuntimeController runCtr = new CourseRuntimeController(ureq, bwControl, entry, reSecurity, new RuntimeControllerCreator() {

            @Override
            public Controller create(UserRequest uureq, WindowControl wwControl, TooledStackedPanel toolbarPanel, RepositoryEntry re, RepositoryEntrySecurity security, AssessmentMode assessmentMode) {
                return new RunMainController(uureq, wwControl, toolbarPanel, CourseFactory.loadCourse(re), re, security, assessmentMode);
            }
        }, false, true);
        // Configure run controller
        // a: don't show close link, is opened as site not tab
        runCtr.setCourseCloseEnabled(false);
        // b: don't show toolbar
        if (!showToolController) {
            runCtr.setToolControllerEnabled(false);
        }
        c = runCtr;
    } else {
        // access restricted (not in group / author) -> show controller
        // defined in olat_extensions (type autoCreator)
        c = getAlternativeController(ureq, wControl, config);
    }
    return c;
}

Example 10 with TreeEvaluation

use of org.olat.course.run.userview.TreeEvaluation in project openolat by klemens.

the class BCCourseNode method getSecurisedNodeFolderContainer.

public static OlatNamedContainerImpl getSecurisedNodeFolderContainer(BCCourseNode node, CourseEnvironment courseEnv, IdentityEnvironment ienv) {
    boolean isOlatAdmin = ienv.getRoles().isOLATAdmin();
    boolean isGuestOnly = ienv.getRoles().isGuestOnly();
    UserCourseEnvironmentImpl uce = new UserCourseEnvironmentImpl(ienv, courseEnv);
    NodeEvaluation ne = node.eval(uce.getConditionInterpreter(), new TreeEvaluation(), new VisibleTreeFilter());
    OlatNamedContainerImpl container = getNodeFolderContainer(node, courseEnv);
    VFSSecurityCallback secCallback = new FolderNodeCallback(container.getRelPath(), ne, isOlatAdmin, isGuestOnly, null);
    container.setLocalSecurityCallback(secCallback);
    return container;
}