Examples with User org.apache.nifi.registry.security.authorization.User used on opensource projects

Example 1 with User

use of org.apache.nifi.registry.security.authorization.User in project nifi-registry by apache.

the class LdapUserGroupProvider method load.

/**
 * Reloads the tenants.
 */
private void load(final ContextSource contextSource) {
    // create the ldapTemplate based on the context source. use a single source context to use the same connection
    // to support paging when configured
    final SingleContextSource singleContextSource = new SingleContextSource(contextSource.getReadOnlyContext());
    final LdapTemplate ldapTemplate = new LdapTemplate(singleContextSource);
    try {
        final List<User> userList = new ArrayList<>();
        final List<Group> groupList = new ArrayList<>();
        // group dn -> user identifiers lookup
        final Map<String, Set<String>> groupToUserIdentifierMappings = new HashMap<>();
        // user dn -> user lookup
        final Map<String, User> userLookup = new HashMap<>();
        if (performUserSearch) {
            // search controls
            final SearchControls userControls = new SearchControls();
            userControls.setSearchScope(userSearchScope.ordinal());
            // consider paging support for users
            final DirContextProcessor userProcessor;
            if (pageSize == null) {
                userProcessor = new NullDirContextProcessor();
            } else {
                userProcessor = new PagedResultsDirContextProcessor(pageSize);
            }
            // looking for objects matching the user object class
            final AndFilter userFilter = new AndFilter();
            userFilter.and(new EqualsFilter("objectClass", userObjectClass));
            // if a filter has been provided by the user, we add it to the filter
            if (StringUtils.isNotBlank(userSearchFilter)) {
                userFilter.and(new HardcodedFilter(userSearchFilter));
            }
            do {
                userList.addAll(ldapTemplate.search(userSearchBase, userFilter.encode(), userControls, new AbstractContextMapper<User>() {

                    @Override
                    protected User doMapFromContext(DirContextOperations ctx) {
                        // get the user identity
                        final String identity = getUserIdentity(ctx);
                        // build the user
                        final User user = new User.Builder().identifierGenerateFromSeed(identity).identity(identity).build();
                        // store the user for group member later
                        userLookup.put(getReferencedUserValue(ctx), user);
                        if (StringUtils.isNotBlank(userGroupNameAttribute)) {
                            final Attribute attributeGroups = ctx.getAttributes().get(userGroupNameAttribute);
                            if (attributeGroups == null) {
                                logger.warn("User group name attribute [" + userGroupNameAttribute + "] does not exist. Ignoring group membership.");
                            } else {
                                try {
                                    final NamingEnumeration<String> groupValues = (NamingEnumeration<String>) attributeGroups.getAll();
                                    while (groupValues.hasMoreElements()) {
                                        // store the group -> user identifier mapping
                                        groupToUserIdentifierMappings.computeIfAbsent(groupValues.next(), g -> new HashSet<>()).add(user.getIdentifier());
                                    }
                                } catch (NamingException e) {
                                    throw new AuthorizationAccessException("Error while retrieving user group name attribute [" + userIdentityAttribute + "].");
                                }
                            }
                        }
                        return user;
                    }
                }, userProcessor));
            } while (hasMorePages(userProcessor));
        }
        if (performGroupSearch) {
            final SearchControls groupControls = new SearchControls();
            groupControls.setSearchScope(groupSearchScope.ordinal());
            // consider paging support for groups
            final DirContextProcessor groupProcessor;
            if (pageSize == null) {
                groupProcessor = new NullDirContextProcessor();
            } else {
                groupProcessor = new PagedResultsDirContextProcessor(pageSize);
            }
            // looking for objects matching the group object class
            AndFilter groupFilter = new AndFilter();
            groupFilter.and(new EqualsFilter("objectClass", groupObjectClass));
            // if a filter has been provided by the user, we add it to the filter
            if (StringUtils.isNotBlank(groupSearchFilter)) {
                groupFilter.and(new HardcodedFilter(groupSearchFilter));
            }
            do {
                groupList.addAll(ldapTemplate.search(groupSearchBase, groupFilter.encode(), groupControls, new AbstractContextMapper<Group>() {

                    @Override
                    protected Group doMapFromContext(DirContextOperations ctx) {
                        final String dn = ctx.getDn().toString();
                        // get the group identity
                        final String name = getGroupName(ctx);
                        // get the value of this group that may associate it to users
                        final String referencedGroupValue = getReferencedGroupValue(ctx);
                        if (!StringUtils.isBlank(groupMemberAttribute)) {
                            Attribute attributeUsers = ctx.getAttributes().get(groupMemberAttribute);
                            if (attributeUsers == null) {
                                logger.warn("Group member attribute [" + groupMemberAttribute + "] does not exist. Ignoring group membership.");
                            } else {
                                try {
                                    final NamingEnumeration<String> userValues = (NamingEnumeration<String>) attributeUsers.getAll();
                                    while (userValues.hasMoreElements()) {
                                        final String userValue = userValues.next();
                                        if (performUserSearch) {
                                            // find the user by it's referenced attribute and add the identifier to this group
                                            final User user = userLookup.get(userValue);
                                            // ensure the user is known
                                            if (user != null) {
                                                groupToUserIdentifierMappings.computeIfAbsent(referencedGroupValue, g -> new HashSet<>()).add(user.getIdentifier());
                                            } else {
                                                logger.warn(String.format("%s contains member %s but that user was not found while searching users. Ignoring group membership.", name, userValue));
                                            }
                                        } else {
                                            // since performUserSearch is false, then the referenced group attribute must be blank... the user value must be the dn
                                            final String userDn = userValue;
                                            final String userIdentity;
                                            if (useDnForUserIdentity) {
                                                // use the user value to avoid the unnecessary look up
                                                userIdentity = userDn;
                                            } else {
                                                // lookup the user to extract the user identity
                                                userIdentity = getUserIdentity((DirContextAdapter) ldapTemplate.lookup(userDn));
                                            }
                                            // build the user
                                            final User user = new User.Builder().identifierGenerateFromSeed(userIdentity).identity(userIdentity).build();
                                            // add this user
                                            userList.add(user);
                                            groupToUserIdentifierMappings.computeIfAbsent(referencedGroupValue, g -> new HashSet<>()).add(user.getIdentifier());
                                        }
                                    }
                                } catch (NamingException e) {
                                    throw new AuthorizationAccessException("Error while retrieving group name attribute [" + groupNameAttribute + "].");
                                }
                            }
                        }
                        // build this group
                        final Group.Builder groupBuilder = new Group.Builder().identifierGenerateFromSeed(name).name(name);
                        // add all users that were associated with this referenced group attribute
                        if (groupToUserIdentifierMappings.containsKey(referencedGroupValue)) {
                            groupToUserIdentifierMappings.remove(referencedGroupValue).forEach(userIdentifier -> groupBuilder.addUser(userIdentifier));
                        }
                        return groupBuilder.build();
                    }
                }, groupProcessor));
            } while (hasMorePages(groupProcessor));
            // any remaining groupDn's were referenced by a user but not found while searching groups
            groupToUserIdentifierMappings.forEach((referencedGroupValue, userIdentifiers) -> {
                logger.warn(String.format("[%s] are members of %s but that group was not found while searching users. Ignoring group membership.", StringUtils.join(userIdentifiers, ", "), referencedGroupValue));
            });
        } else {
            // since performGroupSearch is false, then the referenced user attribute must be blank... the group value must be the dn
            // groups are not being searched so lookup any groups identified while searching users
            groupToUserIdentifierMappings.forEach((groupDn, userIdentifiers) -> {
                final String groupName;
                if (useDnForGroupName) {
                    // use the dn to avoid the unnecessary look up
                    groupName = groupDn;
                } else {
                    groupName = getGroupName((DirContextAdapter) ldapTemplate.lookup(groupDn));
                }
                // define the group
                final Group.Builder groupBuilder = new Group.Builder().identifierGenerateFromSeed(groupName).name(groupName);
                // add each user
                userIdentifiers.forEach(userIdentifier -> groupBuilder.addUser(userIdentifier));
                // build the group
                groupList.add(groupBuilder.build());
            });
        }
        // record the updated tenants
        tenants.set(new TenantHolder(new HashSet<>(userList), new HashSet<>(groupList)));
    } finally {
        singleContextSource.destroy();
    }
}

Example 2 with User

use of org.apache.nifi.registry.security.authorization.User in project nifi-registry by apache.

the class FileUserGroupProvider method updateGroup.

@Override
public synchronized Group updateGroup(Group group) throws AuthorizationAccessException {
    if (group == null) {
        throw new IllegalArgumentException("Group cannot be null");
    }
    final UserGroupHolder holder = userGroupHolder.get();
    final Tenants tenants = holder.getTenants();
    // find the group that needs to be update
    org.apache.nifi.registry.security.authorization.file.tenants.generated.Group updateGroup = null;
    for (org.apache.nifi.registry.security.authorization.file.tenants.generated.Group jaxbGroup : tenants.getGroups().getGroup()) {
        if (jaxbGroup.getIdentifier().equals(group.getIdentifier())) {
            updateGroup = jaxbGroup;
            break;
        }
    }
    // if the group wasn't found return null, otherwise update the group and save changes
    if (updateGroup == null) {
        return null;
    }
    // reset the list of users and add each user to the group
    updateGroup.getUser().clear();
    for (String groupUser : group.getUsers()) {
        org.apache.nifi.registry.security.authorization.file.tenants.generated.Group.User jaxbGroupUser = new org.apache.nifi.registry.security.authorization.file.tenants.generated.Group.User();
        jaxbGroupUser.setIdentifier(groupUser);
        updateGroup.getUser().add(jaxbGroupUser);
    }
    updateGroup.setName(group.getName());
    saveAndRefreshHolder(tenants);
    return userGroupHolder.get().getGroupsById().get(group.getIdentifier());
}

Example 3 with User

use of org.apache.nifi.registry.security.authorization.User in project nifi-registry by apache.

the class UserGroupHolder method createGroupsByUserIdentityMap.

/**
 * Creates a Map from user identity to the set of Groups for that identity.
 *
 * @param groups all groups
 * @param users all users
 * @return a Map from User identity to the set of Groups for that identity
 */
private Map<String, Set<Group>> createGroupsByUserIdentityMap(final Set<Group> groups, final Set<User> users) {
    Map<String, Set<Group>> groupsByUserIdentity = new HashMap<>();
    for (User user : users) {
        Set<Group> userGroups = new HashSet<>();
        for (Group group : groups) {
            for (String groupUser : group.getUsers()) {
                if (groupUser.equals(user.getIdentifier())) {
                    userGroups.add(group);
                }
            }
        }
        groupsByUserIdentity.put(user.getIdentity(), userGroups);
    }
    return groupsByUserIdentity;
}

Example 4 with User

use of org.apache.nifi.registry.security.authorization.User in project nifi-registry by apache.

the class TenantHolder method createGroupsByUserIdentityMap.

/**
 * Creates a Map from user identity to the set of Groups for that identity.
 *
 * @param groups all groups
 * @param users all users
 * @return a Map from User identity to the set of Groups for that identity
 */
private Map<String, Set<Group>> createGroupsByUserIdentityMap(final Set<Group> groups, final Set<User> users) {
    Map<String, Set<Group>> groupsByUserIdentity = new HashMap<>();
    for (User user : users) {
        Set<Group> userGroups = new HashSet<>();
        for (Group group : groups) {
            for (String groupUser : group.getUsers()) {
                if (groupUser.equals(user.getIdentifier())) {
                    userGroups.add(group);
                }
            }
        }
        groupsByUserIdentity.put(user.getIdentity(), userGroups);
    }
    return groupsByUserIdentity;
}

Example 5 with User

use of org.apache.nifi.registry.security.authorization.User in project nifi-registry by apache.

the class FileAccessPolicyProvider method addUserToAccessPolicy.

/**
 * Creates and adds an access policy for the given resource, identity, and actions to the specified authorizations.
 *
 * @param authorizations the Authorizations instance to add the policy to
 * @param resource the resource for the policy
 * @param userIdentifier the identifier for the user to add to the policy
 * @param action the action for the policy
 */
private void addUserToAccessPolicy(final Authorizations authorizations, final String resource, final String userIdentifier, final String action) {
    // first try to find an existing policy for the given resource and action
    Policy foundPolicy = null;
    for (Policy policy : authorizations.getPolicies().getPolicy()) {
        if (policy.getResource().equals(resource) && policy.getAction().equals(action)) {
            foundPolicy = policy;
            break;
        }
    }
    if (foundPolicy == null) {
        // if we didn't find an existing policy create a new one
        final String uuidSeed = resource + action;
        final AccessPolicy.Builder builder = new AccessPolicy.Builder().identifierGenerateFromSeed(uuidSeed).resource(resource).addUser(userIdentifier);
        if (action.equals(READ_CODE)) {
            builder.action(RequestAction.READ);
        } else if (action.equals(WRITE_CODE)) {
            builder.action(RequestAction.WRITE);
        } else if (action.equals(DELETE_CODE)) {
            builder.action(RequestAction.DELETE);
        } else {
            throw new IllegalStateException("Unknown Policy Action: " + action);
        }
        final AccessPolicy accessPolicy = builder.build();
        final Policy jaxbPolicy = createJAXBPolicy(accessPolicy);
        authorizations.getPolicies().getPolicy().add(jaxbPolicy);
    } else {
        // otherwise add the user to the existing policy
        Policy.User policyUser = new Policy.User();
        policyUser.setIdentifier(userIdentifier);
        foundPolicy.getUser().add(policyUser);
    }
}