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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | 7x 7x 7x 43x 43x 43x 27x 27x 27x 27x 27x 25x 25x 25x 16x 16x 17x 17x 16x 16x 16x 7x 7x 6x 1x 1x | /* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. Licensed 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. */ import { ConfigServiceClient, SelectAggregateResourceConfigCommand, SelectAggregateResourceConfigCommandInput, } from "@aws-sdk/client-config-service"; import pMemoize from "p-memoize"; import { FlowObject, FlowRuleBundle, ResolvedFlowObject, } from "../../FlowDefinitions"; import { Logger } from "../../logger-type"; import { ObjectResolver } from "./ObjectResolver"; import { CommonAddress } from "./Types"; export abstract class CloudResourceObjectResolver implements ObjectResolver { abstract canResolve(object: FlowObject): boolean; abstract resolve( object: FlowObject, ruleGroup?: FlowRuleBundle ): Promise<ResolvedFlowObject>; queryAwsConfig: ( key: FlowRuleBundle | undefined, value: string | undefined ) => Promise<string[]>; constructor( protected configServiceClient: ConfigServiceClient, protected defaultAggregatorName?: string ) { this.queryAwsConfig = pMemoize(this.rawQueryAwsConfig, { maxAge: 1000 * 60, cacheKey: JSON.stringify, cachePromiseRejection: false, }); } protected async rawQueryAwsConfig( ruleGroup: FlowRuleBundle | undefined, configAdvancedQueryString: string | undefined ): Promise<string[]> { let results: string[] = []; let nextToken; do { const params: SelectAggregateResourceConfigCommandInput = { ConfigurationAggregatorName: ruleGroup?.aggregatorName ?? this.defaultAggregatorName, Expression: configAdvancedQueryString, }; const command = new SelectAggregateResourceConfigCommand(params); const response = await this.configServiceClient.send(command); nextToken = response.NextToken; results = results.concat(response.Results ?? []); } while (nextToken); return results; } protected parseResult( logger: Logger, data: string[], ruleObject: FlowObject ): ResolvedFlowObject { logger.info("resolveObject result", data); const results = data ?.map((r) => <CommonAddress>JSON.parse(r)) .filter((i) => i); logger.info("resolveObject results", results); return { ...ruleObject, addresses: results?.map( (r) => r.configuration.privateIpAddress ?? r.configuration.cidrBlock ) ?? [], }; } protected async parseRule( logger: Logger, ruleGroup: FlowRuleBundle | undefined, configAdvancedQueryString: string | undefined, ruleObject: FlowObject ): Promise<ResolvedFlowObject> { try { const data = await this.queryAwsConfig( ruleGroup, configAdvancedQueryString ); return this.parseResult(logger, data, ruleObject); } catch (e) { logger.error("Encounter error while query for object", ruleObject, e); return { ...ruleObject, addresses: [], // eslint-disable-next-line @typescript-eslint/no-explicit-any failureReasons: ["AwsConfigClient failed " + e.message], }; } } } |