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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 5x 5x 5x 5x 1x 4x 4x 4x 4x 4x 4x 4x 1x 1x 3x 3x 3x 1x 1x 1x 2x 2x 2x 3x | /* 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 { APIGatewayProxyEvent, Context } from 'aws-lambda'; import { AuditChangeResult, FlowAudit, FlowRule, Logger, LoggerFactory } from 'shared_types'; import { AsyncRequestHandler } from 'src/common/AsyncRequestHandler'; import RuleConfigError from 'src/common/RuleConfigError'; import { ServerlessResponse } from 'src/common/ServerlessResponse'; import { AuditsDataSourceService } from 'src/service/AuditsDataSourceService'; import { RulesDataSourceService } from 'src/service/RulesDataSourceService'; import { RuleGroupAuthenticationValidator } from 'src/validators/RuleGroupAuthenticationValidator'; import { inject, injectable } from 'tsyringe'; /** * @api {delete} /rulegroups/{id}/rules/{ruleId} Delete a rule * @apiGroup Rule * @apiDescription Delete a rule in a rule group * @apiVersion 1.0.0 * @apiExample {curl} CURL Example: curl --location --request GET 'https://<rest_api_id>.execute-api.ap-southeast-2.amazonaws.com/prod/rulegroups/demo-group-group/rules/rule_id' * @apiSuccess (Success 201) Rule created * @apiError (Error 400) BadRequest Rule group id path parameter cannot be null or empty * @apiError (Error 400) BadRequest Rule group id path parameter does not match request body groupId * @apiError (Error 400) BadRequest RuleGroup does not exists * @apiError (Error 403) Forbidden Requestor's arn is not authorized to perform this action * @apiError (Error 500) RemoteError Error while creating rule object * * @apiSuccessExample Success-Response: * HTTP/1.1 200 OK * { "ruleId": "rule_id" } * * @apiSampleRequest off */ @injectable() export class DeleteRuleHandler implements AsyncRequestHandler<APIGatewayProxyEvent, ServerlessResponse> { private readonly logger: Logger; constructor(@inject('LoggerFactory') loggerFactory: LoggerFactory, @inject('RulesDataSourceService') private ruleDataSourceService: RulesDataSourceService, @inject('AuditsDataSourceService') private auditsDataSourceService: AuditsDataSourceService, @inject('RuleGroupAuthenticationValidator') private ruleGroupAuthenticationValidator: RuleGroupAuthenticationValidator ) { this.logger = loggerFactory.getLogger('DeleteRuleHandler'); } async handle( event: APIGatewayProxyEvent, // eslint-disable-next-line @typescript-eslint/no-unused-vars _context: Context ): Promise<ServerlessResponse> { Iif (!event.pathParameters) { return ServerlessResponse.ofError(new RuleConfigError(undefined, 400, false)); } const ruleId = event.pathParameters['ruleId']; const ruleGroupdId = event.pathParameters['id']; if (!event.pathParameters || !ruleGroupdId || !ruleId) { return ServerlessResponse.ofError( new RuleConfigError('Parameter rule id or rule group id not found', 400, false) ); } this.logger.debug('Processing delete rule request'); const rule = await this.ruleDataSourceService.getRuleBy(ruleId); this.logger.info('retrieved rule', rule); const requestorIdentity = event.requestContext.identity?.userArn ?? 'Unkonwn'; const requestingAccountId = event.requestContext.accountId; const errorResponse = await this.ruleGroupAuthenticationValidator.checkRuleGroupAccess(requestorIdentity, ruleGroupdId, requestingAccountId, 'DELETE'); if (errorResponse) { this.logger.error(`Authorization error ${errorResponse.body}`) return errorResponse; } this.logger.info('retrieved rule', rule); const matchingRuleGroupId = rule?.ruleGroupId === ruleGroupdId; if (rule && matchingRuleGroupId) { await this.ruleDataSourceService.deleteRuleBy(ruleGroupdId, ruleId); await this.auditEntryForCreation(requestorIdentity, 'SUCCESS', ruleGroupdId, rule); return ServerlessResponse.ofObject(200, { ruleId }); } else { const message = rule ? 'Rule group id does not matching the requested rule' : 'Rule not found'; await this.auditEntryForCreation(requestorIdentity, 'REJECTED', ruleGroupdId, rule ?? { id: ruleId } as FlowRule, [message]); return ServerlessResponse.ofObject(404, { message }); } } async auditEntryForCreation(requestorIdentity: string, status: AuditChangeResult, ruleGroupId: string, rule: FlowRule, reasons?: string[]): Promise<FlowAudit> { return await this.auditsDataSourceService.createAuditEntry({ requestedBy: requestorIdentity, requestedTimestamp: new Date().toISOString(), rlowRuleGroupId: ruleGroupId, requestedChange: { type: 'DELETE', //CREATE/UPDATE/DELETE changeContent: { requestedObject: rule, }, changeResult: status, // SUCCESS, REJECTED reasonPhrase: reasons ?? [] } }) } } |