nizhikov commented on code in PR #15572: URL: https://github.com/apache/kafka/pull/15572#discussion_r1541492785
########## server/src/main/java/org/apache/kafka/security/authorizer/AclEntry.java: ########## @@ -0,0 +1,215 @@ +/* + * 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.kafka.security.authorizer; + +import org.apache.kafka.common.acl.AccessControlEntry; +import org.apache.kafka.common.acl.AclOperation; +import org.apache.kafka.common.acl.AclPermissionType; +import org.apache.kafka.common.protocol.Errors; +import org.apache.kafka.common.resource.ResourcePattern; +import org.apache.kafka.common.resource.ResourceType; +import org.apache.kafka.common.security.auth.KafkaPrincipal; +import org.apache.kafka.common.utils.SecurityUtils; +import org.apache.kafka.server.util.Json; +import org.apache.kafka.server.util.json.DecodeJson; +import org.apache.kafka.server.util.json.JsonObject; +import org.apache.kafka.server.util.json.JsonValue; + +import java.io.IOException; +import java.util.Arrays; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.Map; +import java.util.Optional; +import java.util.Set; +import java.util.stream.Collectors; + +import static org.apache.kafka.common.acl.AclOperation.ALTER; +import static org.apache.kafka.common.acl.AclOperation.ALTER_CONFIGS; +import static org.apache.kafka.common.acl.AclOperation.CLUSTER_ACTION; +import static org.apache.kafka.common.acl.AclOperation.CREATE; +import static org.apache.kafka.common.acl.AclOperation.CREATE_TOKENS; +import static org.apache.kafka.common.acl.AclOperation.DELETE; +import static org.apache.kafka.common.acl.AclOperation.DESCRIBE; +import static org.apache.kafka.common.acl.AclOperation.DESCRIBE_CONFIGS; +import static org.apache.kafka.common.acl.AclOperation.DESCRIBE_TOKENS; +import static org.apache.kafka.common.acl.AclOperation.IDEMPOTENT_WRITE; +import static org.apache.kafka.common.acl.AclOperation.READ; +import static org.apache.kafka.common.acl.AclOperation.WRITE; + +public class AclEntry extends AccessControlEntry { + private static final DecodeJson.DecodeInteger INT = new DecodeJson.DecodeInteger(); + private static final DecodeJson.DecodeString STRING = new DecodeJson.DecodeString(); + + public static final KafkaPrincipal WILDCARD_PRINCIPAL = new KafkaPrincipal(KafkaPrincipal.USER_TYPE, "*"); + public static final String WILDCARD_PRINCIPAL_STRING = WILDCARD_PRINCIPAL.toString(); + public static final String WILDCARD_HOST = "*"; + public static final String WILDCARD_RESOURCE = ResourcePattern.WILDCARD_RESOURCE; + public static final String RESOURCE_SEPARATOR = ":"; + public static final Set<ResourceType> RESOURCE_TYPES = Arrays.stream(ResourceType.values()) + .filter(t -> !(t == ResourceType.UNKNOWN || t == ResourceType.ANY)) + .collect(Collectors.toSet()); + public static final Set<AclOperation> ACL_OPERATIONS = Arrays.stream(AclOperation.values()) + .filter(t -> !(t == AclOperation.UNKNOWN || t == AclOperation.ANY)) + .collect(Collectors.toSet()); + + private static final String PRINCIPAL_KEY = "principal"; + private static final String PERMISSION_TYPE_KEY = "permissionType"; + private static final String OPERATION_KEY = "operation"; + private static final String HOSTS_KEY = "host"; + public static final String VERSION_KEY = "version"; + public static final int CURRENT_VERSION = 1; + private static final String ACLS_KEY = "acls"; + + public final AccessControlEntry ace; + public final KafkaPrincipal kafkaPrincipal; + + public AclEntry(AccessControlEntry ace) { + super(ace.principal(), ace.host(), ace.operation(), ace.permissionType()); + this.ace = ace; + + kafkaPrincipal = ace.principal() == null + ? null + : SecurityUtils.parseKafkaPrincipal(ace.principal()); + } + + public static AclEntry apply(KafkaPrincipal principal, + AclPermissionType permissionType, + String host, + AclOperation operation) { + return new AclEntry(new AccessControlEntry(principal == null ? null : principal.toString(), + host, operation, permissionType)); + } + + /** + * Parse JSON representation of ACLs + * @param bytes of acls json string + * + * <p> + { + "version": 1, + "acls": [ + { + "host":"host1", + "permissionType": "Deny", + "operation": "Read", + "principal": "User:alice" + } + ] + } + * </p> + * + * @return set of AclEntry objects from the JSON string + */ + public static Set<AclEntry> fromBytes(byte[] bytes) throws IOException { + if (bytes == null || bytes.length == 0) + return Collections.emptySet(); + + Optional<JsonValue> jsonValue = Json.parseBytes(bytes); + if (!jsonValue.isPresent()) + return Collections.emptySet(); + + JsonObject js = jsonValue.get().asJsonObject(); + + //the acl json version. + if (js.apply(VERSION_KEY).to(INT) != CURRENT_VERSION) Review Comment: Done -- This is an automated message from the Apache Git Service. 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