Backend half

SerpentRace_Backend/node_modules/@aws-sdk/middleware-flexible-checksums/dist-cjs/getCrc32ChecksumAlgorithmFunction.browser.js

@@ -0,0 +1,6 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getCrc32ChecksumAlgorithmFunction = void 0;
+const crc32_1 = require("@aws-crypto/crc32");
+const getCrc32ChecksumAlgorithmFunction = () => crc32_1.AwsCrc32;
+exports.getCrc32ChecksumAlgorithmFunction = getCrc32ChecksumAlgorithmFunction;

SerpentRace_Backend/node_modules/@aws-sdk/middleware-flexible-checksums/dist-cjs/getCrc32ChecksumAlgorithmFunction.js

@@ -0,0 +1,26 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getCrc32ChecksumAlgorithmFunction = void 0;
+const tslib_1 = require("tslib");
+const crc32_1 = require("@aws-crypto/crc32");
+const util_1 = require("@aws-crypto/util");
+const zlib = tslib_1.__importStar(require("zlib"));
+class NodeCrc32 {
+    checksum = 0;
+    update(data) {
+        this.checksum = zlib.crc32(data, this.checksum);
+    }
+    async digest() {
+        return (0, util_1.numToUint8)(this.checksum);
+    }
+    reset() {
+        this.checksum = 0;
+    }
+}
+const getCrc32ChecksumAlgorithmFunction = () => {
+    if (typeof zlib.crc32 === "undefined") {
+        return crc32_1.AwsCrc32;
+    }
+    return NodeCrc32;
+};
+exports.getCrc32ChecksumAlgorithmFunction = getCrc32ChecksumAlgorithmFunction;

SerpentRace_Backend/node_modules/@aws-sdk/middleware-flexible-checksums/dist-cjs/index.js

@@ -0,0 +1,525 @@
+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+
+// src/index.ts
+var index_exports = {};
+__export(index_exports, {
+  CONFIG_REQUEST_CHECKSUM_CALCULATION: () => CONFIG_REQUEST_CHECKSUM_CALCULATION,
+  CONFIG_RESPONSE_CHECKSUM_VALIDATION: () => CONFIG_RESPONSE_CHECKSUM_VALIDATION,
+  ChecksumAlgorithm: () => ChecksumAlgorithm,
+  ChecksumLocation: () => ChecksumLocation,
+  DEFAULT_CHECKSUM_ALGORITHM: () => DEFAULT_CHECKSUM_ALGORITHM,
+  DEFAULT_REQUEST_CHECKSUM_CALCULATION: () => DEFAULT_REQUEST_CHECKSUM_CALCULATION,
+  DEFAULT_RESPONSE_CHECKSUM_VALIDATION: () => DEFAULT_RESPONSE_CHECKSUM_VALIDATION,
+  ENV_REQUEST_CHECKSUM_CALCULATION: () => ENV_REQUEST_CHECKSUM_CALCULATION,
+  ENV_RESPONSE_CHECKSUM_VALIDATION: () => ENV_RESPONSE_CHECKSUM_VALIDATION,
+  NODE_REQUEST_CHECKSUM_CALCULATION_CONFIG_OPTIONS: () => NODE_REQUEST_CHECKSUM_CALCULATION_CONFIG_OPTIONS,
+  NODE_RESPONSE_CHECKSUM_VALIDATION_CONFIG_OPTIONS: () => NODE_RESPONSE_CHECKSUM_VALIDATION_CONFIG_OPTIONS,
+  RequestChecksumCalculation: () => RequestChecksumCalculation,
+  ResponseChecksumValidation: () => ResponseChecksumValidation,
+  crc64NvmeCrtContainer: () => crc64NvmeCrtContainer,
+  flexibleChecksumsMiddleware: () => flexibleChecksumsMiddleware,
+  flexibleChecksumsMiddlewareOptions: () => flexibleChecksumsMiddlewareOptions,
+  getFlexibleChecksumsPlugin: () => getFlexibleChecksumsPlugin,
+  resolveFlexibleChecksumsConfig: () => resolveFlexibleChecksumsConfig
+});
+module.exports = __toCommonJS(index_exports);
+
+// src/constants.ts
+var RequestChecksumCalculation = {
+  /**
+   * When set, a checksum will be calculated for all request payloads of operations
+   * modeled with the {@link httpChecksum} trait where `requestChecksumRequired` is `true`
+   * AND/OR a `requestAlgorithmMember` is modeled.
+   * {@link https://smithy.io/2.0/aws/aws-core.html#aws-protocols-httpchecksum-trait httpChecksum}
+   */
+  WHEN_SUPPORTED: "WHEN_SUPPORTED",
+  /**
+   * When set, a checksum will only be calculated for request payloads of operations
+   * modeled with the {@link httpChecksum} trait where `requestChecksumRequired` is `true`
+   * OR where a `requestAlgorithmMember` is modeled and the user sets it.
+   * {@link https://smithy.io/2.0/aws/aws-core.html#aws-protocols-httpchecksum-trait httpChecksum}
+   */
+  WHEN_REQUIRED: "WHEN_REQUIRED"
+};
+var DEFAULT_REQUEST_CHECKSUM_CALCULATION = RequestChecksumCalculation.WHEN_SUPPORTED;
+var ResponseChecksumValidation = {
+  /**
+   * When set, checksum validation MUST be performed on all response payloads of operations
+   * modeled with the {@link httpChecksum} trait where `responseAlgorithms` is modeled,
+   * except when no modeled checksum algorithms are supported by an SDK.
+   * {@link https://smithy.io/2.0/aws/aws-core.html#aws-protocols-httpchecksum-trait httpChecksum}
+   */
+  WHEN_SUPPORTED: "WHEN_SUPPORTED",
+  /**
+   * When set, checksum validation MUST NOT be performed on response payloads of operations UNLESS
+   * the SDK supports the modeled checksum algorithms AND the user has set the `requestValidationModeMember` to `ENABLED`.
+   * It is currently impossible to model an operation as requiring a response checksum,
+   * but this setting leaves the door open for future updates.
+   */
+  WHEN_REQUIRED: "WHEN_REQUIRED"
+};
+var DEFAULT_RESPONSE_CHECKSUM_VALIDATION = RequestChecksumCalculation.WHEN_SUPPORTED;
+var ChecksumAlgorithm = /* @__PURE__ */ ((ChecksumAlgorithm3) => {
+  ChecksumAlgorithm3["MD5"] = "MD5";
+  ChecksumAlgorithm3["CRC32"] = "CRC32";
+  ChecksumAlgorithm3["CRC32C"] = "CRC32C";
+  ChecksumAlgorithm3["CRC64NVME"] = "CRC64NVME";
+  ChecksumAlgorithm3["SHA1"] = "SHA1";
+  ChecksumAlgorithm3["SHA256"] = "SHA256";
+  return ChecksumAlgorithm3;
+})(ChecksumAlgorithm || {});
+var ChecksumLocation = /* @__PURE__ */ ((ChecksumLocation2) => {
+  ChecksumLocation2["HEADER"] = "header";
+  ChecksumLocation2["TRAILER"] = "trailer";
+  return ChecksumLocation2;
+})(ChecksumLocation || {});
+var DEFAULT_CHECKSUM_ALGORITHM = "CRC32" /* CRC32 */;
+
+// src/stringUnionSelector.ts
+var stringUnionSelector = /* @__PURE__ */ __name((obj, key, union, type) => {
+  if (!(key in obj)) return void 0;
+  const value = obj[key].toUpperCase();
+  if (!Object.values(union).includes(value)) {
+    throw new TypeError(`Cannot load ${type} '${key}'. Expected one of ${Object.values(union)}, got '${obj[key]}'.`);
+  }
+  return value;
+}, "stringUnionSelector");
+
+// src/NODE_REQUEST_CHECKSUM_CALCULATION_CONFIG_OPTIONS.ts
+var ENV_REQUEST_CHECKSUM_CALCULATION = "AWS_REQUEST_CHECKSUM_CALCULATION";
+var CONFIG_REQUEST_CHECKSUM_CALCULATION = "request_checksum_calculation";
+var NODE_REQUEST_CHECKSUM_CALCULATION_CONFIG_OPTIONS = {
+  environmentVariableSelector: /* @__PURE__ */ __name((env) => stringUnionSelector(env, ENV_REQUEST_CHECKSUM_CALCULATION, RequestChecksumCalculation, "env" /* ENV */), "environmentVariableSelector"),
+  configFileSelector: /* @__PURE__ */ __name((profile) => stringUnionSelector(profile, CONFIG_REQUEST_CHECKSUM_CALCULATION, RequestChecksumCalculation, "shared config entry" /* CONFIG */), "configFileSelector"),
+  default: DEFAULT_REQUEST_CHECKSUM_CALCULATION
+};
+
+// src/NODE_RESPONSE_CHECKSUM_VALIDATION_CONFIG_OPTIONS.ts
+var ENV_RESPONSE_CHECKSUM_VALIDATION = "AWS_RESPONSE_CHECKSUM_VALIDATION";
+var CONFIG_RESPONSE_CHECKSUM_VALIDATION = "response_checksum_validation";
+var NODE_RESPONSE_CHECKSUM_VALIDATION_CONFIG_OPTIONS = {
+  environmentVariableSelector: /* @__PURE__ */ __name((env) => stringUnionSelector(env, ENV_RESPONSE_CHECKSUM_VALIDATION, ResponseChecksumValidation, "env" /* ENV */), "environmentVariableSelector"),
+  configFileSelector: /* @__PURE__ */ __name((profile) => stringUnionSelector(profile, CONFIG_RESPONSE_CHECKSUM_VALIDATION, ResponseChecksumValidation, "shared config entry" /* CONFIG */), "configFileSelector"),
+  default: DEFAULT_RESPONSE_CHECKSUM_VALIDATION
+};
+
+// src/crc64-nvme-crt-container.ts
+var crc64NvmeCrtContainer = {
+  CrtCrc64Nvme: null
+};
+
+// src/flexibleChecksumsMiddleware.ts
+var import_core = require("@aws-sdk/core");
+var import_protocol_http = require("@smithy/protocol-http");
+var import_util_stream = require("@smithy/util-stream");
+
+// src/types.ts
+var CLIENT_SUPPORTED_ALGORITHMS = [
+  "CRC32" /* CRC32 */,
+  "CRC32C" /* CRC32C */,
+  "CRC64NVME" /* CRC64NVME */,
+  "SHA1" /* SHA1 */,
+  "SHA256" /* SHA256 */
+];
+var PRIORITY_ORDER_ALGORITHMS = [
+  "SHA256" /* SHA256 */,
+  "SHA1" /* SHA1 */,
+  "CRC32" /* CRC32 */,
+  "CRC32C" /* CRC32C */,
+  "CRC64NVME" /* CRC64NVME */
+];
+
+// src/getChecksumAlgorithmForRequest.ts
+var getChecksumAlgorithmForRequest = /* @__PURE__ */ __name((input, { requestChecksumRequired, requestAlgorithmMember, requestChecksumCalculation }) => {
+  if (!requestAlgorithmMember) {
+    return requestChecksumCalculation === RequestChecksumCalculation.WHEN_SUPPORTED || requestChecksumRequired ? DEFAULT_CHECKSUM_ALGORITHM : void 0;
+  }
+  if (!input[requestAlgorithmMember]) {
+    return void 0;
+  }
+  const checksumAlgorithm = input[requestAlgorithmMember];
+  if (!CLIENT_SUPPORTED_ALGORITHMS.includes(checksumAlgorithm)) {
+    throw new Error(
+      `The checksum algorithm "${checksumAlgorithm}" is not supported by the client. Select one of ${CLIENT_SUPPORTED_ALGORITHMS}.`
+    );
+  }
+  return checksumAlgorithm;
+}, "getChecksumAlgorithmForRequest");
+
+// src/getChecksumLocationName.ts
+var getChecksumLocationName = /* @__PURE__ */ __name((algorithm) => algorithm === "MD5" /* MD5 */ ? "content-md5" : `x-amz-checksum-${algorithm.toLowerCase()}`, "getChecksumLocationName");
+
+// src/hasHeader.ts
+var hasHeader = /* @__PURE__ */ __name((header, headers) => {
+  const soughtHeader = header.toLowerCase();
+  for (const headerName of Object.keys(headers)) {
+    if (soughtHeader === headerName.toLowerCase()) {
+      return true;
+    }
+  }
+  return false;
+}, "hasHeader");
+
+// src/hasHeaderWithPrefix.ts
+var hasHeaderWithPrefix = /* @__PURE__ */ __name((headerPrefix, headers) => {
+  const soughtHeaderPrefix = headerPrefix.toLowerCase();
+  for (const headerName of Object.keys(headers)) {
+    if (headerName.toLowerCase().startsWith(soughtHeaderPrefix)) {
+      return true;
+    }
+  }
+  return false;
+}, "hasHeaderWithPrefix");
+
+// src/isStreaming.ts
+var import_is_array_buffer = require("@smithy/is-array-buffer");
+var isStreaming = /* @__PURE__ */ __name((body) => body !== void 0 && typeof body !== "string" && !ArrayBuffer.isView(body) && !(0, import_is_array_buffer.isArrayBuffer)(body), "isStreaming");
+
+// src/selectChecksumAlgorithmFunction.ts
+var import_crc32c = require("@aws-crypto/crc32c");
+var import_getCrc32ChecksumAlgorithmFunction = require("././getCrc32ChecksumAlgorithmFunction");
+var selectChecksumAlgorithmFunction = /* @__PURE__ */ __name((checksumAlgorithm, config) => {
+  switch (checksumAlgorithm) {
+    case "MD5" /* MD5 */:
+      return config.md5;
+    case "CRC32" /* CRC32 */:
+      return (0, import_getCrc32ChecksumAlgorithmFunction.getCrc32ChecksumAlgorithmFunction)();
+    case "CRC32C" /* CRC32C */:
+      return import_crc32c.AwsCrc32c;
+    case "CRC64NVME" /* CRC64NVME */:
+      if (typeof crc64NvmeCrtContainer.CrtCrc64Nvme !== "function") {
+        throw new Error(
+          `Please check whether you have installed the "@aws-sdk/crc64-nvme-crt" package explicitly. 
+You must also register the package by calling [require("@aws-sdk/crc64-nvme-crt");] or an ESM equivalent such as [import "@aws-sdk/crc64-nvme-crt";]. 
+For more information please go to https://github.com/aws/aws-sdk-js-v3#functionality-requiring-aws-common-runtime-crt`
+        );
+      }
+      return crc64NvmeCrtContainer.CrtCrc64Nvme;
+    case "SHA1" /* SHA1 */:
+      return config.sha1;
+    case "SHA256" /* SHA256 */:
+      return config.sha256;
+    default:
+      throw new Error(`Unsupported checksum algorithm: ${checksumAlgorithm}`);
+  }
+}, "selectChecksumAlgorithmFunction");
+
+// src/stringHasher.ts
+var import_util_utf8 = require("@smithy/util-utf8");
+var stringHasher = /* @__PURE__ */ __name((checksumAlgorithmFn, body) => {
+  const hash = new checksumAlgorithmFn();
+  hash.update((0, import_util_utf8.toUint8Array)(body || ""));
+  return hash.digest();
+}, "stringHasher");
+
+// src/flexibleChecksumsMiddleware.ts
+var flexibleChecksumsMiddlewareOptions = {
+  name: "flexibleChecksumsMiddleware",
+  step: "build",
+  tags: ["BODY_CHECKSUM"],
+  override: true
+};
+var flexibleChecksumsMiddleware = /* @__PURE__ */ __name((config, middlewareConfig) => (next, context) => async (args) => {
+  if (!import_protocol_http.HttpRequest.isInstance(args.request)) {
+    return next(args);
+  }
+  if (hasHeaderWithPrefix("x-amz-checksum-", args.request.headers)) {
+    return next(args);
+  }
+  const { request, input } = args;
+  const { body: requestBody, headers } = request;
+  const { base64Encoder, streamHasher } = config;
+  const { requestChecksumRequired, requestAlgorithmMember } = middlewareConfig;
+  const requestChecksumCalculation = await config.requestChecksumCalculation();
+  const requestAlgorithmMemberName = requestAlgorithmMember?.name;
+  const requestAlgorithmMemberHttpHeader = requestAlgorithmMember?.httpHeader;
+  if (requestAlgorithmMemberName && !input[requestAlgorithmMemberName]) {
+    if (requestChecksumCalculation === RequestChecksumCalculation.WHEN_SUPPORTED || requestChecksumRequired) {
+      input[requestAlgorithmMemberName] = DEFAULT_CHECKSUM_ALGORITHM;
+      if (requestAlgorithmMemberHttpHeader) {
+        headers[requestAlgorithmMemberHttpHeader] = DEFAULT_CHECKSUM_ALGORITHM;
+      }
+    }
+  }
+  const checksumAlgorithm = getChecksumAlgorithmForRequest(input, {
+    requestChecksumRequired,
+    requestAlgorithmMember: requestAlgorithmMember?.name,
+    requestChecksumCalculation
+  });
+  let updatedBody = requestBody;
+  let updatedHeaders = headers;
+  if (checksumAlgorithm) {
+    switch (checksumAlgorithm) {
+      case "CRC32" /* CRC32 */:
+        (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_CRC32", "U");
+        break;
+      case "CRC32C" /* CRC32C */:
+        (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_CRC32C", "V");
+        break;
+      case "CRC64NVME" /* CRC64NVME */:
+        (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_CRC64", "W");
+        break;
+      case "SHA1" /* SHA1 */:
+        (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_SHA1", "X");
+        break;
+      case "SHA256" /* SHA256 */:
+        (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_SHA256", "Y");
+        break;
+    }
+    const checksumLocationName = getChecksumLocationName(checksumAlgorithm);
+    const checksumAlgorithmFn = selectChecksumAlgorithmFunction(checksumAlgorithm, config);
+    if (isStreaming(requestBody)) {
+      const { getAwsChunkedEncodingStream, bodyLengthChecker } = config;
+      updatedBody = getAwsChunkedEncodingStream(
+        typeof config.requestStreamBufferSize === "number" && config.requestStreamBufferSize >= 8 * 1024 ? (0, import_util_stream.createBufferedReadable)(requestBody, config.requestStreamBufferSize, context.logger) : requestBody,
+        {
+          base64Encoder,
+          bodyLengthChecker,
+          checksumLocationName,
+          checksumAlgorithmFn,
+          streamHasher
+        }
+      );
+      updatedHeaders = {
+        ...headers,
+        "content-encoding": headers["content-encoding"] ? `${headers["content-encoding"]},aws-chunked` : "aws-chunked",
+        "transfer-encoding": "chunked",
+        "x-amz-decoded-content-length": headers["content-length"],
+        "x-amz-content-sha256": "STREAMING-UNSIGNED-PAYLOAD-TRAILER",
+        "x-amz-trailer": checksumLocationName
+      };
+      delete updatedHeaders["content-length"];
+    } else if (!hasHeader(checksumLocationName, headers)) {
+      const rawChecksum = await stringHasher(checksumAlgorithmFn, requestBody);
+      updatedHeaders = {
+        ...headers,
+        [checksumLocationName]: base64Encoder(rawChecksum)
+      };
+    }
+  }
+  const result = await next({
+    ...args,
+    request: {
+      ...request,
+      headers: updatedHeaders,
+      body: updatedBody
+    }
+  });
+  return result;
+}, "flexibleChecksumsMiddleware");
+
+// src/flexibleChecksumsInputMiddleware.ts
+
+var flexibleChecksumsInputMiddlewareOptions = {
+  name: "flexibleChecksumsInputMiddleware",
+  toMiddleware: "serializerMiddleware",
+  relation: "before",
+  tags: ["BODY_CHECKSUM"],
+  override: true
+};
+var flexibleChecksumsInputMiddleware = /* @__PURE__ */ __name((config, middlewareConfig) => (next, context) => async (args) => {
+  const input = args.input;
+  const { requestValidationModeMember } = middlewareConfig;
+  const requestChecksumCalculation = await config.requestChecksumCalculation();
+  const responseChecksumValidation = await config.responseChecksumValidation();
+  switch (requestChecksumCalculation) {
+    case RequestChecksumCalculation.WHEN_REQUIRED:
+      (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_WHEN_REQUIRED", "a");
+      break;
+    case RequestChecksumCalculation.WHEN_SUPPORTED:
+      (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_REQ_WHEN_SUPPORTED", "Z");
+      break;
+  }
+  switch (responseChecksumValidation) {
+    case ResponseChecksumValidation.WHEN_REQUIRED:
+      (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_RES_WHEN_REQUIRED", "c");
+      break;
+    case ResponseChecksumValidation.WHEN_SUPPORTED:
+      (0, import_core.setFeature)(context, "FLEXIBLE_CHECKSUMS_RES_WHEN_SUPPORTED", "b");
+      break;
+  }
+  if (requestValidationModeMember && !input[requestValidationModeMember]) {
+    if (responseChecksumValidation === ResponseChecksumValidation.WHEN_SUPPORTED) {
+      input[requestValidationModeMember] = "ENABLED";
+    }
+  }
+  return next(args);
+}, "flexibleChecksumsInputMiddleware");
+
+// src/flexibleChecksumsResponseMiddleware.ts
+
+
+// src/getChecksumAlgorithmListForResponse.ts
+var getChecksumAlgorithmListForResponse = /* @__PURE__ */ __name((responseAlgorithms = []) => {
+  const validChecksumAlgorithms = [];
+  for (const algorithm of PRIORITY_ORDER_ALGORITHMS) {
+    if (!responseAlgorithms.includes(algorithm) || !CLIENT_SUPPORTED_ALGORITHMS.includes(algorithm)) {
+      continue;
+    }
+    validChecksumAlgorithms.push(algorithm);
+  }
+  return validChecksumAlgorithms;
+}, "getChecksumAlgorithmListForResponse");
+
+// src/isChecksumWithPartNumber.ts
+var isChecksumWithPartNumber = /* @__PURE__ */ __name((checksum) => {
+  const lastHyphenIndex = checksum.lastIndexOf("-");
+  if (lastHyphenIndex !== -1) {
+    const numberPart = checksum.slice(lastHyphenIndex + 1);
+    if (!numberPart.startsWith("0")) {
+      const number = parseInt(numberPart, 10);
+      if (!isNaN(number) && number >= 1 && number <= 1e4) {
+        return true;
+      }
+    }
+  }
+  return false;
+}, "isChecksumWithPartNumber");
+
+// src/validateChecksumFromResponse.ts
+
+
+// src/getChecksum.ts
+var getChecksum = /* @__PURE__ */ __name(async (body, { checksumAlgorithmFn, base64Encoder }) => base64Encoder(await stringHasher(checksumAlgorithmFn, body)), "getChecksum");
+
+// src/validateChecksumFromResponse.ts
+var validateChecksumFromResponse = /* @__PURE__ */ __name(async (response, { config, responseAlgorithms, logger }) => {
+  const checksumAlgorithms = getChecksumAlgorithmListForResponse(responseAlgorithms);
+  const { body: responseBody, headers: responseHeaders } = response;
+  for (const algorithm of checksumAlgorithms) {
+    const responseHeader = getChecksumLocationName(algorithm);
+    const checksumFromResponse = responseHeaders[responseHeader];
+    if (checksumFromResponse) {
+      let checksumAlgorithmFn;
+      try {
+        checksumAlgorithmFn = selectChecksumAlgorithmFunction(algorithm, config);
+      } catch (error) {
+        if (algorithm === "CRC64NVME" /* CRC64NVME */) {
+          logger?.warn(`Skipping ${"CRC64NVME" /* CRC64NVME */} checksum validation: ${error.message}`);
+          continue;
+        }
+        throw error;
+      }
+      const { base64Encoder } = config;
+      if (isStreaming(responseBody)) {
+        response.body = (0, import_util_stream.createChecksumStream)({
+          expectedChecksum: checksumFromResponse,
+          checksumSourceLocation: responseHeader,
+          checksum: new checksumAlgorithmFn(),
+          source: responseBody,
+          base64Encoder
+        });
+        return;
+      }
+      const checksum = await getChecksum(responseBody, { checksumAlgorithmFn, base64Encoder });
+      if (checksum === checksumFromResponse) {
+        break;
+      }
+      throw new Error(
+        `Checksum mismatch: expected "${checksum}" but received "${checksumFromResponse}" in response header "${responseHeader}".`
+      );
+    }
+  }
+}, "validateChecksumFromResponse");
+
+// src/flexibleChecksumsResponseMiddleware.ts
+var flexibleChecksumsResponseMiddlewareOptions = {
+  name: "flexibleChecksumsResponseMiddleware",
+  toMiddleware: "deserializerMiddleware",
+  relation: "after",
+  tags: ["BODY_CHECKSUM"],
+  override: true
+};
+var flexibleChecksumsResponseMiddleware = /* @__PURE__ */ __name((config, middlewareConfig) => (next, context) => async (args) => {
+  if (!import_protocol_http.HttpRequest.isInstance(args.request)) {
+    return next(args);
+  }
+  const input = args.input;
+  const result = await next(args);
+  const response = result.response;
+  const { requestValidationModeMember, responseAlgorithms } = middlewareConfig;
+  if (requestValidationModeMember && input[requestValidationModeMember] === "ENABLED") {
+    const { clientName, commandName } = context;
+    const isS3WholeObjectMultipartGetResponseChecksum = clientName === "S3Client" && commandName === "GetObjectCommand" && getChecksumAlgorithmListForResponse(responseAlgorithms).every((algorithm) => {
+      const responseHeader = getChecksumLocationName(algorithm);
+      const checksumFromResponse = response.headers[responseHeader];
+      return !checksumFromResponse || isChecksumWithPartNumber(checksumFromResponse);
+    });
+    if (isS3WholeObjectMultipartGetResponseChecksum) {
+      return result;
+    }
+    await validateChecksumFromResponse(response, {
+      config,
+      responseAlgorithms,
+      logger: context.logger
+    });
+  }
+  return result;
+}, "flexibleChecksumsResponseMiddleware");
+
+// src/getFlexibleChecksumsPlugin.ts
+var getFlexibleChecksumsPlugin = /* @__PURE__ */ __name((config, middlewareConfig) => ({
+  applyToStack: /* @__PURE__ */ __name((clientStack) => {
+    clientStack.add(flexibleChecksumsMiddleware(config, middlewareConfig), flexibleChecksumsMiddlewareOptions);
+    clientStack.addRelativeTo(
+      flexibleChecksumsInputMiddleware(config, middlewareConfig),
+      flexibleChecksumsInputMiddlewareOptions
+    );
+    clientStack.addRelativeTo(
+      flexibleChecksumsResponseMiddleware(config, middlewareConfig),
+      flexibleChecksumsResponseMiddlewareOptions
+    );
+  }, "applyToStack")
+}), "getFlexibleChecksumsPlugin");
+
+// src/resolveFlexibleChecksumsConfig.ts
+var import_util_middleware = require("@smithy/util-middleware");
+var resolveFlexibleChecksumsConfig = /* @__PURE__ */ __name((input) => {
+  const { requestChecksumCalculation, responseChecksumValidation, requestStreamBufferSize } = input;
+  return Object.assign(input, {
+    requestChecksumCalculation: (0, import_util_middleware.normalizeProvider)(requestChecksumCalculation ?? DEFAULT_REQUEST_CHECKSUM_CALCULATION),
+    responseChecksumValidation: (0, import_util_middleware.normalizeProvider)(responseChecksumValidation ?? DEFAULT_RESPONSE_CHECKSUM_VALIDATION),
+    requestStreamBufferSize: Number(requestStreamBufferSize ?? 0)
+  });
+}, "resolveFlexibleChecksumsConfig");
+// Annotate the CommonJS export names for ESM import in node:
+
+0 && (module.exports = {
+  ENV_REQUEST_CHECKSUM_CALCULATION,
+  CONFIG_REQUEST_CHECKSUM_CALCULATION,
+  NODE_REQUEST_CHECKSUM_CALCULATION_CONFIG_OPTIONS,
+  ENV_RESPONSE_CHECKSUM_VALIDATION,
+  CONFIG_RESPONSE_CHECKSUM_VALIDATION,
+  NODE_RESPONSE_CHECKSUM_VALIDATION_CONFIG_OPTIONS,
+  RequestChecksumCalculation,
+  DEFAULT_REQUEST_CHECKSUM_CALCULATION,
+  ResponseChecksumValidation,
+  DEFAULT_RESPONSE_CHECKSUM_VALIDATION,
+  ChecksumAlgorithm,
+  ChecksumLocation,
+  DEFAULT_CHECKSUM_ALGORITHM,
+  crc64NvmeCrtContainer,
+  flexibleChecksumsMiddlewareOptions,
+  flexibleChecksumsMiddleware,
+  getFlexibleChecksumsPlugin,
+  resolveFlexibleChecksumsConfig
+});
+