personal_site/frontend/node_modules/@aws-amplify/backend-storage/lib/construct.js

import { Construct } from 'constructs';
import { Bucket, HttpMethods, } from 'aws-cdk-lib/aws-s3';
import { RemovalPolicy, Stack } from 'aws-cdk-lib';
import { CDKContextKey } from '@aws-amplify/platform-core';
import { AttributionMetadataStorage } from '@aws-amplify/backend-output-storage';
import { fileURLToPath } from 'node:url';
import { S3EventSourceV2 } from 'aws-cdk-lib/aws-lambda-event-sources';
// Be very careful editing this value. It is the string that is used to attribute stacks to Amplify Storage in BI metrics
const storageStackType = 'storage-S3';
/**
 * Amplify Storage CDK Construct
 *
 * Currently just a thin wrapper around an S3 bucket
 */
export class AmplifyStorage extends Construct {
    stack;
    resources;
    isDefault;
    name;
    accessDefinition;
    /**
     * Create a new AmplifyStorage instance
     */
    constructor(scope, id, props) {
        super(scope, id);
        this.isDefault = props.isDefault || false;
        this.name = props.name;
        this.stack = Stack.of(scope);
        const deploymentType = Stack.of(scope).node.tryGetContext(CDKContextKey.DEPLOYMENT_TYPE);
        const isSandbox = deploymentType === 'sandbox';
        const isDestroy = isSandbox || !props.keepOnDelete;
        if (isSandbox && props.keepOnDelete) {
            // eslint-disable-next-line no-console
            console.warn(`[@aws-amplify/backend-storage] keepOnDelete is ignored in sandbox deployments. The bucket will be deleted.`);
        }
        const bucketProps = {
            versioned: props.versioned || false,
            cors: [
                {
                    maxAge: 3000,
                    exposedHeaders: [
                        'x-amz-server-side-encryption',
                        'x-amz-request-id',
                        'x-amz-id-2',
                        'ETag',
                    ],
                    allowedHeaders: ['*'],
                    allowedOrigins: ['*'],
                    allowedMethods: [
                        HttpMethods.GET,
                        HttpMethods.HEAD,
                        HttpMethods.PUT,
                        HttpMethods.POST,
                        HttpMethods.DELETE,
                    ],
                },
            ],
            autoDeleteObjects: isDestroy,
            removalPolicy: isDestroy ? RemovalPolicy.DESTROY : RemovalPolicy.RETAIN,
            enforceSSL: true,
        };
        const bucket = new Bucket(this, 'Bucket', bucketProps);
        this.resources = {
            bucket,
            cfnResources: {
                cfnBucket: bucket.node.findChild('Resource'),
            },
        };
        new AttributionMetadataStorage().storeAttributionMetadata(Stack.of(this), storageStackType, fileURLToPath(new URL('../package.json', import.meta.url)));
    }
    /**
     * Attach a Lambda function trigger handler to the S3 events
     * @param events - list of S3 events that will trigger the handler
     * @param handler - The function that will handle the event
     */
    addTrigger = (events, handler) => {
        handler.addEventSource(new S3EventSourceV2(this.resources.bucket, { events }));
    };
    /**
     * Add access definitions to storage
     */
    addAccessDefinition = (accessOutput) => {
        this.accessDefinition = accessOutput;
    };
}
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