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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 | 5x 5x 5x 5x 5x 21x 21x 21x 21x 21x 21x 16x 3x 16x 1x 16x 10x 10x 2x 16x 3x 3x 1x 16x 7x 9x 9x 2x 2x 7x 7x 6x 6x 1x 1x 1x 1x 3x 1x 2x 2x 10x 10x 10x 10x 9x 8x 8x 1x 1x 1x 1x 10x | /* 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 { ARN, parse } from "@aws-sdk/util-arn-parser"; import { Logger, LoggerFactory, TargetDefinitionResolver } from "shared_types"; import { FlowTargetInput } from "src/types/FlowTarget"; import { inject, injectable } from "tsyringe"; import { InputValidator, REGEX_DESCRIPTION, REGEX_ID } from './InputValidator'; type TagValuePair = { key: string, value: string }; type ValidationResult = { isValid: boolean, message: string }; @injectable() export class CreateTargetInputValidator extends InputValidator<FlowTargetInput> { DEFAULT_SUPPORT_TYPES = ['autoscaling', 'ec2']; SUPPORTED_RESOURCE_REGX = /(security-group|instance|vpc|subnet)\/(.+)/; PORT_RANGE_REGX = /\[(\d+):(\d.+)\]/; logger: Logger; constructor( @inject('LoggerFactory') loggerFactory: LoggerFactory, @inject('TargetDefinitionResolver') private targetDefinitionResolver: TargetDefinitionResolver ) { super(); this.logger = loggerFactory.getLogger('CreateTargetInputValidator'); } protected async validate(input: FlowTargetInput): Promise<void> { if(!input.description || !this.isValidDescriptionName(input.description)) { this.errors.push(`Invalid target : description violated restriction, expecting ${REGEX_DESCRIPTION}`); } if (input.id && !this.isValidId(input.id)) { this.errors.push(`id should be matching ${REGEX_ID}`); } if (input.type === 'Arn') { const arnValidationResult = this.validateArn(input.value); if (!arnValidationResult.isValid) { this.errors.push(`Invalid target : ${arnValidationResult.message}.`); } } if (input.type === 'Tagged') { const valid = this.isValidTagValue(input.value); if (!valid) { this.errors.push(`Invalid target : ${input.value} is not a valid tag value.`); } } if(this.errors.length > 0) { return; } await this.validateObjectReference(input); } private async validateObjectReference(input: FlowTargetInput) { if (input.type === 'Tagged') { this.logger.info('Input type is Tagged skip resolution on creation/updating'); return; } try { const result = await this.targetDefinitionResolver.resolveTarget(input); this.logger.info('resolved outcome', result); if (result.addresses.length === 0) { this.logger.error('can not resolve target to IP addresses'); this.errors.push('can not resolve target to IP addresses'); } } catch (e) { this.logger.error('can not resolve target', input, e); this.errors.push('can not resolve target', e); } } isValidTagValue(value: unknown): boolean { if (!Array.isArray(value)) { return false; } const listOfTags: TagValuePair[] = (value as TagValuePair[]); return listOfTags.some(t => !this.isBlank(t.key) && !this.isBlank(t.value)); } private validateArn(inputArn: string): ValidationResult { let isValid = false; let message = ''; try { const arn: ARN = parse(inputArn); if (this.DEFAULT_SUPPORT_TYPES.includes(arn.service)) { const match = arn.resource.match(this.SUPPORTED_RESOURCE_REGX); isValid = arn.service == 'autoscaling' || (arn.service === 'ec2' && match != null && match[1] != null) } else { isValid = false; message = `${arn.service} is not a supported arn type`; } } catch (e) { message = `${inputArn} is not a valid arn` isValid = false; } return { isValid, message }; } } |