@aws-amplify/storage/dist/esm/providers/s3/apis/internal/list.mjs.map

Storage category of aws-amplify

{"version":3,"file":"list.mjs","sources":["../../../../../../src/providers/s3/apis/internal/list.ts"],"sourcesContent":["// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { StorageAction } from '@aws-amplify/core/internals/utils';\nimport { resolveS3ConfigAndInput, urlDecode, validateBucketOwnerID, validateStorageOperationInputWithPrefix, } from '../../utils';\nimport { listObjectsV2, } from '../../utils/client/s3data';\nimport { getStorageUserAgentValue } from '../../utils/userAgent';\nimport { logger } from '../../../../utils';\nimport { DEFAULT_DELIMITER, STORAGE_INPUT_PREFIX } from '../../utils/constants';\nimport { IntegrityError } from '../../../../errors/IntegrityError';\nconst MAX_PAGE_SIZE = 1000;\nexport const list = async (amplify, input) => {\n    const { options = {} } = input;\n    const { s3Config, bucket, keyPrefix: generatedPrefix, identityId, } = await resolveS3ConfigAndInput(amplify, input);\n    const { inputType, objectKey } = validateStorageOperationInputWithPrefix(input, identityId);\n    validateBucketOwnerID(options.expectedBucketOwner);\n    const isInputWithPrefix = inputType === STORAGE_INPUT_PREFIX;\n    // @ts-expect-error pageSize and nextToken should not coexist with listAll\n    if (options?.listAll && (options?.pageSize || options?.nextToken)) {\n        const anyOptions = options;\n        logger.debug(`listAll is set to true, ignoring ${anyOptions?.pageSize ? `pageSize: ${anyOptions?.pageSize}` : ''} ${anyOptions?.nextToken ? `nextToken: ${anyOptions?.nextToken}` : ''}.`);\n    }\n    const listParams = {\n        Bucket: bucket,\n        Prefix: isInputWithPrefix ? `${generatedPrefix}${objectKey}` : objectKey,\n        MaxKeys: options?.listAll ? undefined : options?.pageSize,\n        ContinuationToken: options?.listAll ? undefined : options?.nextToken,\n        Delimiter: getDelimiter(options),\n        ExpectedBucketOwner: options?.expectedBucketOwner,\n        EncodingType: 'url',\n    };\n    logger.debug(`listing items from \"${listParams.Prefix}\"`);\n    const listInputArgs = {\n        s3Config,\n        listParams,\n    };\n    if (options.listAll) {\n        if (isInputWithPrefix) {\n            return _listAllWithPrefix({\n                ...listInputArgs,\n                generatedPrefix,\n            });\n        }\n        else {\n            return _listAllWithPath(listInputArgs);\n        }\n    }\n    else {\n        if (isInputWithPrefix) {\n            return _listWithPrefix({ ...listInputArgs, generatedPrefix });\n        }\n        else {\n            return _listWithPath(listInputArgs);\n        }\n    }\n};\n/** @deprecated Use {@link _listAllWithPath} instead. */\nconst _listAllWithPrefix = async ({ s3Config, listParams, generatedPrefix, }) => {\n    const listResult = [];\n    let continuationToken = listParams.ContinuationToken;\n    do {\n        const { items: pageResults, nextToken: pageNextToken } = await _listWithPrefix({\n            generatedPrefix,\n            s3Config,\n            listParams: {\n                ...listParams,\n                ContinuationToken: continuationToken,\n                MaxKeys: MAX_PAGE_SIZE,\n            },\n        });\n        listResult.push(...pageResults);\n        continuationToken = pageNextToken;\n    } while (continuationToken);\n    return {\n        items: listResult,\n    };\n};\n/** @deprecated Use {@link _listWithPath} instead. */\nconst _listWithPrefix = async ({ s3Config, listParams, generatedPrefix, }) => {\n    const listParamsClone = { ...listParams };\n    if (!listParamsClone.MaxKeys || listParamsClone.MaxKeys > MAX_PAGE_SIZE) {\n        logger.debug(`defaulting pageSize to ${MAX_PAGE_SIZE}.`);\n        listParamsClone.MaxKeys = MAX_PAGE_SIZE;\n    }\n    const response = await listObjectsV2({\n        ...s3Config,\n        userAgentValue: getStorageUserAgentValue(StorageAction.List),\n    }, listParamsClone);\n    const listOutput = decodeEncodedElements(response);\n    validateEchoedElements(listParamsClone, listOutput);\n    if (!listOutput?.Contents) {\n        return {\n            items: [],\n        };\n    }\n    return {\n        items: listOutput.Contents.map(item => ({\n            key: generatedPrefix\n                ? item.Key.substring(generatedPrefix.length)\n                : item.Key,\n            eTag: item.ETag,\n            lastModified: item.LastModified,\n            size: item.Size,\n        })),\n        nextToken: listOutput.NextContinuationToken,\n    };\n};\nconst _listAllWithPath = async ({ s3Config, listParams, }) => {\n    const listResult = [];\n    const excludedSubpaths = [];\n    let continuationToken = listParams.ContinuationToken;\n    do {\n        const { items: pageResults, excludedSubpaths: pageExcludedSubpaths, nextToken: pageNextToken, } = await _listWithPath({\n            s3Config,\n            listParams: {\n                ...listParams,\n                ContinuationToken: continuationToken,\n                MaxKeys: MAX_PAGE_SIZE,\n            },\n        });\n        listResult.push(...pageResults);\n        excludedSubpaths.push(...(pageExcludedSubpaths ?? []));\n        continuationToken = pageNextToken;\n    } while (continuationToken);\n    return {\n        items: listResult,\n        excludedSubpaths,\n    };\n};\nconst _listWithPath = async ({ s3Config, listParams, }) => {\n    const listParamsClone = { ...listParams };\n    if (!listParamsClone.MaxKeys || listParamsClone.MaxKeys > MAX_PAGE_SIZE) {\n        logger.debug(`defaulting pageSize to ${MAX_PAGE_SIZE}.`);\n        listParamsClone.MaxKeys = MAX_PAGE_SIZE;\n    }\n    const response = await listObjectsV2({\n        ...s3Config,\n        userAgentValue: getStorageUserAgentValue(StorageAction.List),\n    }, listParamsClone);\n    const listOutput = decodeEncodedElements(response);\n    validateEchoedElements(listParamsClone, listOutput);\n    const { Contents: contents, NextContinuationToken: nextContinuationToken, CommonPrefixes: commonPrefixes, } = listOutput;\n    const excludedSubpaths = commonPrefixes && mapCommonPrefixesToExcludedSubpaths(commonPrefixes);\n    if (!contents) {\n        return {\n            items: [],\n            nextToken: nextContinuationToken,\n            excludedSubpaths,\n        };\n    }\n    return {\n        items: contents.map(item => ({\n            path: item.Key,\n            eTag: item.ETag,\n            lastModified: item.LastModified,\n            size: item.Size,\n        })),\n        nextToken: nextContinuationToken,\n        excludedSubpaths,\n    };\n};\nconst mapCommonPrefixesToExcludedSubpaths = (commonPrefixes) => {\n    return commonPrefixes.reduce((mappedSubpaths, { Prefix }) => {\n        if (Prefix) {\n            mappedSubpaths.push(Prefix);\n        }\n        return mappedSubpaths;\n    }, []);\n};\nconst getDelimiter = (options) => {\n    if (options?.subpathStrategy?.strategy === 'exclude') {\n        return options?.subpathStrategy?.delimiter ?? DEFAULT_DELIMITER;\n    }\n};\nconst validateEchoedElements = (listInput, listOutput) => {\n    const validEchoedParameters = listInput.Bucket === listOutput.Name &&\n        listInput.Delimiter === listOutput.Delimiter &&\n        listInput.MaxKeys === listOutput.MaxKeys &&\n        listInput.Prefix === listOutput.Prefix &&\n        listInput.ContinuationToken === listOutput.ContinuationToken;\n    if (!validEchoedParameters) {\n        throw new IntegrityError({ metadata: listOutput.$metadata });\n    }\n};\n/**\n * Decodes URL-encoded elements in the S3 `ListObjectsV2Output` response when `EncodingType` is `'url'`.\n * Applies to values for 'Delimiter', 'Prefix', 'StartAfter' and 'Key' in the response.\n */\nconst decodeEncodedElements = (listOutput) => {\n    if (listOutput.EncodingType !== 'url') {\n        return listOutput;\n    }\n    const decodedListOutput = { ...listOutput };\n    // Decode top-level properties\n    ['Delimiter', 'Prefix', 'StartAfter'].forEach(prop => {\n        const value = listOutput[prop];\n        if (typeof value === 'string') {\n            decodedListOutput[prop] = urlDecode(value);\n        }\n    });\n    // Decode 'Key' in each item of 'Contents', if it exists\n    if (listOutput.Contents) {\n        decodedListOutput.Contents = listOutput.Contents.map(content => ({\n            ...content,\n            Key: content.Key ? urlDecode(content.Key) : content.Key,\n        }));\n    }\n    // Decode 'Prefix' in each item of 'CommonPrefixes', if it exists\n    if (listOutput.CommonPrefixes) {\n        decodedListOutput.CommonPrefixes = listOutput.CommonPrefixes.map(content => ({\n            ...content,\n            Prefix: content.Prefix ? urlDecode(content.Prefix) : content.Prefix,\n        }));\n    }\n    return 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