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@aws-cdk/integ-tests-alpha

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CDK Integration Testing Constructs

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.CustomResourceHandler = void 0; /* eslint-disable import/no-extraneous-dependencies */ /* eslint-disable no-console */ const https = require("https"); const url = require("url"); const client_sfn_1 = require("@aws-sdk/client-sfn"); class CustomResourceHandler { event; context; physicalResourceId; timeout; timedOut = false; constructor(event, context) { this.event = event; this.context = context; this.timeout = setTimeout(async () => { await this.respond({ status: 'FAILED', reason: 'Lambda Function Timeout', data: this.context.logStreamName, }); this.timedOut = true; }, context.getRemainingTimeInMillis() - 1200); this.event = event; this.physicalResourceId = extractPhysicalResourceId(event); } /** * Handles executing the custom resource event. If `stateMachineArn` is present * in the props then trigger the waiter statemachine */ async handle() { try { if ('stateMachineArn' in this.event.ResourceProperties) { const req = { stateMachineArn: this.event.ResourceProperties.stateMachineArn, name: this.event.RequestId, input: JSON.stringify(this.event), }; await this.startExecution(req); return; } else { const response = await this.processEvent(this.event.ResourceProperties); return response; } } catch (e) { console.log(e); throw e; } finally { clearTimeout(this.timeout); } } /** * Handle async requests from the waiter state machine */ async handleIsComplete() { try { const result = await this.processEvent(this.event.ResourceProperties); return result; } catch (e) { console.log(e); return; } finally { clearTimeout(this.timeout); } } /** * Start a step function state machine which will wait for the request * to be successful. */ async startExecution(req) { try { const sfn = new client_sfn_1.SFN({}); await sfn.startExecution(req); } finally { clearTimeout(this.timeout); } } respond(response) { if (this.timedOut) { return; } const cfResponse = { Status: response.status, Reason: response.reason, PhysicalResourceId: this.physicalResourceId, StackId: this.event.StackId, RequestId: this.event.RequestId, LogicalResourceId: this.event.LogicalResourceId, NoEcho: false, Data: response.data, }; const responseBody = JSON.stringify(cfResponse); console.log('Responding to CloudFormation', responseBody); const parsedUrl = url.parse(this.event.ResponseURL); const requestOptions = { hostname: parsedUrl.hostname, path: parsedUrl.path, method: 'PUT', headers: { 'content-type': '', 'content-length': Buffer.byteLength(responseBody, 'utf8'), }, }; return new Promise((resolve, reject) => { try { const request = https.request(requestOptions, resolve); request.on('error', reject); request.write(responseBody); request.end(); } catch (e) { reject(e); } finally { clearTimeout(this.timeout); } }); } } exports.CustomResourceHandler = CustomResourceHandler; function extractPhysicalResourceId(event) { switch (event.RequestType) { case 'Create': return event.LogicalResourceId; 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If `stateMachineArn` is present\n   * in the props then trigger the waiter statemachine\n   */\n  public async handle(): Promise<Response | undefined> {\n    try {\n      if ('stateMachineArn' in this.event.ResourceProperties) {\n        const req: StartExecutionInput = {\n          stateMachineArn: this.event.ResourceProperties.stateMachineArn,\n          name: this.event.RequestId,\n          input: JSON.stringify(this.event),\n        };\n        await this.startExecution(req);\n        return;\n      } else {\n        const response = await this.processEvent(this.event.ResourceProperties as unknown as Request);\n        return response;\n      }\n    } catch (e) {\n      console.log(e);\n      throw e;\n    } finally {\n      clearTimeout(this.timeout);\n    }\n  }\n\n  /**\n   * Handle async requests from the waiter state machine\n   */\n  public async handleIsComplete(): Promise<Response | undefined> {\n    try {\n      const result = await this.processEvent(this.event.ResourceProperties as unknown as Request);\n      return result;\n    } catch (e) {\n      console.log(e);\n      return;\n    } finally {\n      clearTimeout(this.timeout);\n    }\n  }\n\n  /**\n   * Start a step function state machine which will wait for the request\n   * to be successful.\n   */\n  private async startExecution(req: StartExecutionInput): Promise<void> {\n    try {\n      const sfn = new SFN({});\n      await sfn.startExecution(req);\n    } finally {\n      clearTimeout(this.timeout);\n    }\n  }\n\n  protected abstract processEvent(request: Request): Promise<Response | undefined>;\n\n  public respond(response: HandlerResponse) {\n    if (this.timedOut) {\n      return;\n    }\n    const cfResponse: AWSLambda.CloudFormationCustomResourceResponse = {\n      Status: response.status,\n      Reason: response.reason,\n      PhysicalResourceId: this.physicalResourceId,\n      StackId: this.event.StackId,\n      RequestId: this.event.RequestId,\n      LogicalResourceId: this.event.LogicalResourceId,\n      NoEcho: false,\n      Data: response.data,\n    };\n    const responseBody = JSON.stringify(cfResponse);\n\n    console.log('Responding to CloudFormation', responseBody);\n\n    const parsedUrl = url.parse(this.event.ResponseURL);\n    const requestOptions = {\n      hostname: parsedUrl.hostname,\n      path: parsedUrl.path,\n      method: 'PUT',\n      headers: {\n        'content-type': '',\n        'content-length': Buffer.byteLength(responseBody, 'utf8'),\n      },\n    };\n\n    return new Promise((resolve, reject) => {\n      try {\n        const request = https.request(requestOptions, resolve);\n        request.on('error', reject);\n        request.write(responseBody);\n        request.end();\n      } catch (e) {\n        reject(e);\n      } finally {\n        clearTimeout(this.timeout);\n      }\n    });\n  }\n}\n\nfunction extractPhysicalResourceId(event: AWSLambda.CloudFormationCustomResourceEvent): string {\n  switch (event.RequestType) {\n    case 'Create':\n      return event.LogicalResourceId;\n    case 'Update':\n    case 'Delete':\n      return event.PhysicalResourceId;\n  }\n}\n"]}