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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2021/01/28 19:54:58 UTC
[GitHub] [nifi] sjyang18 commented on a change in pull request #4367: NIFI-7573: Add an Azure Active Directory (AAD) User Group Provider
sjyang18 commented on a change in pull request #4367:
URL: https://github.com/apache/nifi/pull/4367#discussion_r566367802
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File path: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-graph-authorizer/src/main/java/org/apache/nifi/authorization/azure/AzureGraphUserGroupProvider.java
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@@ -0,0 +1,420 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.authorization.azure;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.Collectors;
+
+import com.google.gson.JsonObject;
+import com.microsoft.graph.core.ClientException;
+import com.microsoft.graph.models.extensions.DirectoryObject;
+import com.microsoft.graph.models.extensions.IGraphServiceClient;
+import com.microsoft.graph.options.Option;
+import com.microsoft.graph.options.QueryOption;
+import com.microsoft.graph.requests.extensions.GraphServiceClient;
+import com.microsoft.graph.requests.extensions.IDirectoryObjectCollectionWithReferencesPage;
+import com.microsoft.graph.requests.extensions.IDirectoryObjectCollectionWithReferencesRequest;
+import com.microsoft.graph.requests.extensions.IDirectoryObjectCollectionWithReferencesRequestBuilder;
+import com.microsoft.graph.requests.extensions.IGroupCollectionPage;
+import com.microsoft.graph.requests.extensions.IGroupCollectionRequest;
+import com.microsoft.graph.requests.extensions.IGroupCollectionRequestBuilder;
+
+import org.apache.nifi.authorization.AuthorizerConfigurationContext;
+import org.apache.nifi.authorization.Group;
+import org.apache.nifi.authorization.User;
+import org.apache.nifi.authorization.UserAndGroups;
+import org.apache.nifi.authorization.UserGroupProvider;
+import org.apache.nifi.authorization.UserGroupProviderInitializationContext;
+import org.apache.nifi.authorization.exception.AuthorizationAccessException;
+import org.apache.nifi.authorization.exception.AuthorizerCreationException;
+import org.apache.nifi.authorization.exception.AuthorizerDestructionException;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.util.FormatUtils;
+import org.apache.nifi.util.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The AzureGraphUserGroupProvider provides support for retrieving users and
+ * groups from Azure Activy Driectory (AAD) using graph rest-api & SDK.
+ */
+public class AzureGraphUserGroupProvider implements UserGroupProvider {
+ private final static Logger logger = LoggerFactory.getLogger(AzureGraphUserGroupProvider.class);
+ private Set<String> groupFilterSet;
+ private int pageSize;
+ private String claimForUserName;
+
+ private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(2);
+
+ public static final String REFRESH_DELAY_PROPERTY = "REFRESH_DELAY";
+ private static final long MINIMUM_SYNC_INTERVAL_MILLISECONDS = 10_000;
+ public static final String AUTHORITY_ENDPOINT_PROPERTY = "AUTHORITY_ENDPOINT";
+ public static final String TENANT_ID_PROPERTY = "TENANT_ID";
+ public static final String APP_REG_CLIENT_ID_PROPERTY = "APP_REG_CLIENT_ID";
+ public static final String APP_REG_CLIENT_SECRET_PROPERTY = "APP_REG_CLIENT_SECRET";
+ // comma separate list of group names to search from AAD
+ public static final String GROUP_FILTER_LIST_PROPERTY = "GROUP_FILTER_LIST_INCLUSION";
+ // group filter with startswith
+ public static final String GROUP_FILTER_PREFIX_PROPERTY = "GROUP_FILTER_PREFIX";
+ // client side group filter 'endswith' operator, due to support limiation of
+ // azure graph rest-api
+ public static final String GROUP_FILTER_SUFFIX_PROPERTY = "GROUP_FILTER_SUFFIX";
+ // client side group filter 'contains' operator, due to support limiation of
+ // azure graph rest-api
+ public static final String GROUP_FILTER_SUBSTRING_PROPERTY = "GROUP_FILTER_SUBSTRING";
+ public static final String PAGE_SIZE_PROPERTY = "PAGE_SIZE";
+ // default: upn (or userPrincipalName). possilbe choices ['upn', 'email']
+ // this should be matched with oidc configuration in nifi.properties
+ public static final String CLAIM_FOR_USERNAME = "CLAIM_FOR_USERNAME";
+ public static final String DEFAULT_AAD_AUTHORITY_ENDPOINT = "https://login.microsoftonline.com";
+
+ private ClientCredentialAuthProvider authProvider;
+ private IGraphServiceClient graphClient;
+ private AtomicReference<ImmutableAzureGraphUserGroup> azureGraphUserGroupRef = new AtomicReference<ImmutableAzureGraphUserGroup>();
+
+ @Override
+ public Group getGroup(String identifier) throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getGroup(identifier);
+ }
+
+ @Override
+ public Set<Group> getGroups() throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getGroups();
+ }
+
+ @Override
+ public User getUser(String identifier) throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getUser(identifier);
+ }
+
+ @Override
+ public UserAndGroups getUserAndGroups(String principalName) throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getUserAndGroups(principalName);
+ }
+
+ @Override
+ public User getUserByIdentity(String principalName) throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getUserByPrincipalName(principalName);
+ }
+
+ @Override
+ public Set<User> getUsers() throws AuthorizationAccessException {
+ return azureGraphUserGroupRef.get().getUsers();
+ }
+
+ @Override
+ public void initialize(UserGroupProviderInitializationContext initializationContext)
+ throws AuthorizerCreationException {
+ if (logger.isDebugEnabled()) {
+ logger.debug("calling AzureGraphUserGroupProvder.initialize");
+ }
+ }
+
+ private String getProperty(AuthorizerConfigurationContext authContext, String propertyName, String defaultValue) {
+ final PropertyValue property = authContext.getProperty(propertyName);
+ final String value;
+
+ if (property != null && property.isSet()) {
+ value = property.getValue();
+ } else {
+ value = defaultValue;
+ }
+ return value;
+ }
+
+ private long getDelayProperty(AuthorizerConfigurationContext authContext, String propertyName,
+ String defaultValue) {
+ final String propertyValue = getProperty(authContext, propertyName, defaultValue);
+ final long syncInterval;
+ try {
+ syncInterval = Math.round(FormatUtils.getPreciseTimeDuration(propertyValue, TimeUnit.MILLISECONDS));
+ } catch (final IllegalArgumentException ignored) {
+ throw new AuthorizerCreationException(
+ String.format("The %s '%s' is not a valid time interval.", propertyName, propertyValue));
+ }
+
+ if (syncInterval < MINIMUM_SYNC_INTERVAL_MILLISECONDS) {
+ throw new AuthorizerCreationException(String.format("The %s '%s' is below the minimum value of '%d ms'",
+ propertyName, propertyValue, MINIMUM_SYNC_INTERVAL_MILLISECONDS));
+ }
+ return syncInterval;
+ }
+
+ @Override
+ public void onConfigured(AuthorizerConfigurationContext configurationContext) throws AuthorizerCreationException {
+ if (logger.isDebugEnabled()) {
+ logger.debug("calling AzureGraphUserGroupProvder.onConfigured");
+ }
+ long fixedDelay = getDelayProperty(configurationContext, REFRESH_DELAY_PROPERTY, "5 mins");
+ final String authorityEndpoint = getProperty(configurationContext, AUTHORITY_ENDPOINT_PROPERTY,
+ DEFAULT_AAD_AUTHORITY_ENDPOINT);
+ final String tenantId = getProperty(configurationContext, TENANT_ID_PROPERTY, null);
+ final String clientId = getProperty(configurationContext, APP_REG_CLIENT_ID_PROPERTY, null);
+ final String clientSecret = getProperty(configurationContext, APP_REG_CLIENT_SECRET_PROPERTY, null);
+ this.pageSize = Integer.parseInt(getProperty(configurationContext, PAGE_SIZE_PROPERTY, "50"));
+ this.claimForUserName = getProperty(configurationContext, CLAIM_FOR_USERNAME, "upn");
+
+ if (StringUtils.isBlank(tenantId)) {
+ throw new AuthorizerCreationException(
+ String.format("%s is a required field for AzureGraphUserGroupProvder", TENANT_ID_PROPERTY));
+ }
+ if (StringUtils.isBlank(clientId)) {
+ throw new AuthorizerCreationException(
+ String.format("%s is a required field for AzureGraphUserGroupProvder", APP_REG_CLIENT_ID_PROPERTY));
+ }
+ if (StringUtils.isBlank(clientSecret)) {
+ throw new AuthorizerCreationException(String.format("%s is a required field for AzureGraphUserGroupProvder",
+ APP_REG_CLIENT_SECRET_PROPERTY));
+ }
+ if (this.pageSize > 999) {
+ throw new AuthorizerCreationException("Max page size for graph rest api call is 999.");
+ }
+
+ try {
+ authProvider = new ClientCredentialAuthProvider.Builder()
+ .authorityEndpoint(authorityEndpoint)
+ .tenantId(tenantId)
+ .clientId(clientId)
+ .clientSecret(clientSecret)
+ .build();
+ graphClient = GraphServiceClient.builder().authenticationProvider(authProvider).buildClient();
+ } catch (ClientException ep) {
+ throw new AuthorizerCreationException("Failed to create a GraphServiceClient", ep);
+ }
+
+ // first, load list of group name if there is any prefix, suffix, substring
+ // filter defined, paging thru groups.
+ // then, add additonal group list if there is group list inclusion defined.
+ final String prefix = getProperty(configurationContext, GROUP_FILTER_PREFIX_PROPERTY, null);
+ final String suffix = getProperty(configurationContext, GROUP_FILTER_SUFFIX_PROPERTY, null);
+ final String substring = getProperty(configurationContext, GROUP_FILTER_SUBSTRING_PROPERTY, null);
+ final String groupFilterLst = getProperty(configurationContext, GROUP_FILTER_LIST_PROPERTY, null);
+
+ // if no group filter is specified, generate exception since we don't want to
+ // load whole groups from AAD.
+ if (StringUtils.isBlank(prefix) && StringUtils.isBlank(suffix) && StringUtils.isBlank(substring)
+ && StringUtils.isBlank(groupFilterLst)) {
+ throw new AuthorizerCreationException("At least one GROUP_FILTER should be specified");
+ }
+ if (!StringUtils.isBlank(prefix) || !StringUtils.isBlank(suffix) || !StringUtils.isBlank(substring)) {
+ this.groupFilterSet = getGroupListWith(prefix, suffix, substring, pageSize);
+ }
+
+ if (!StringUtils.isBlank(groupFilterLst)) {
+ final Set<String> groupFilterNames = Arrays.stream(groupFilterLst.split(",")).map(String::trim)
+ .collect(Collectors.toSet());
+ if (groupFilterSet != null) {
+ Set<String> gNameSet = this.groupFilterSet.stream().collect(Collectors.toSet());
+ this.groupFilterSet
+ .addAll(groupFilterNames.stream().filter(gname -> !gNameSet.contains(gname)).collect(Collectors.toSet()));
+
+ } else {
+ groupFilterSet = groupFilterNames;
+ }
+ }
+ try {
+ refreshUserGroupData(groupFilterSet);
+ } catch (IOException | ClientException ep) {
+ throw new AuthorizerCreationException("Failed to load user/group from Azure AD", ep);
+ }
Review comment:
Thanks for taking time and leaving your feedback with a working example. I like your suggestion and mostly I took advantage of yours.
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