fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/@smithy/node-http-handler/LICENSE

@@ -0,0 +1,201 @@
+Apache License
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backend/node_modules/@smithy/node-http-handler/README.md

@@ -0,0 +1,9 @@
+# @smithy/node-http-handler
+
+[![NPM version](https://img.shields.io/npm/v/@smithy/node-http-handler/latest.svg)](https://www.npmjs.com/package/@smithy/node-http-handler)
+[![NPM downloads](https://img.shields.io/npm/dm/@smithy/node-http-handler.svg)](https://www.npmjs.com/package/@smithy/node-http-handler)
+
+This package implements the default `requestHandler` for Node.js using `node:http`, `node:https`, and `node:http2`.
+
+For an example on how `requestHandler`s are used by Smithy generated SDK clients, refer to
+the [AWS SDK for JavaScript (v3) supplemental docs](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/CLIENTS.md#request-handler-requesthandler).

backend/node_modules/@smithy/node-http-handler/dist-cjs/index.js

@@ -0,0 +1,732 @@
+'use strict';
+
+var protocolHttp = require('@smithy/protocol-http');
+var querystringBuilder = require('@smithy/querystring-builder');
+var http = require('http');
+var https = require('https');
+var stream = require('stream');
+var http2 = require('http2');
+
+const NODEJS_TIMEOUT_ERROR_CODES = ["ECONNRESET", "EPIPE", "ETIMEDOUT"];
+
+const getTransformedHeaders = (headers) => {
+    const transformedHeaders = {};
+    for (const name of Object.keys(headers)) {
+        const headerValues = headers[name];
+        transformedHeaders[name] = Array.isArray(headerValues) ? headerValues.join(",") : headerValues;
+    }
+    return transformedHeaders;
+};
+
+const timing = {
+    setTimeout: (cb, ms) => setTimeout(cb, ms),
+    clearTimeout: (timeoutId) => clearTimeout(timeoutId),
+};
+
+const DEFER_EVENT_LISTENER_TIME$2 = 1000;
+const setConnectionTimeout = (request, reject, timeoutInMs = 0) => {
+    if (!timeoutInMs) {
+        return -1;
+    }
+    const registerTimeout = (offset) => {
+        const timeoutId = timing.setTimeout(() => {
+            request.destroy();
+            reject(Object.assign(new Error(`@smithy/node-http-handler - the request socket did not establish a connection with the server within the configured timeout of ${timeoutInMs} ms.`), {
+                name: "TimeoutError",
+            }));
+        }, timeoutInMs - offset);
+        const doWithSocket = (socket) => {
+            if (socket?.connecting) {
+                socket.on("connect", () => {
+                    timing.clearTimeout(timeoutId);
+                });
+            }
+            else {
+                timing.clearTimeout(timeoutId);
+            }
+        };
+        if (request.socket) {
+            doWithSocket(request.socket);
+        }
+        else {
+            request.on("socket", doWithSocket);
+        }
+    };
+    if (timeoutInMs < 2000) {
+        registerTimeout(0);
+        return 0;
+    }
+    return timing.setTimeout(registerTimeout.bind(null, DEFER_EVENT_LISTENER_TIME$2), DEFER_EVENT_LISTENER_TIME$2);
+};
+
+const setRequestTimeout = (req, reject, timeoutInMs = 0, throwOnRequestTimeout, logger) => {
+    if (timeoutInMs) {
+        return timing.setTimeout(() => {
+            let msg = `@smithy/node-http-handler - [${throwOnRequestTimeout ? "ERROR" : "WARN"}] a request has exceeded the configured ${timeoutInMs} ms requestTimeout.`;
+            if (throwOnRequestTimeout) {
+                const error = Object.assign(new Error(msg), {
+                    name: "TimeoutError",
+                    code: "ETIMEDOUT",
+                });
+                req.destroy(error);
+                reject(error);
+            }
+            else {
+                msg += ` Init client requestHandler with throwOnRequestTimeout=true to turn this into an error.`;
+                logger?.warn?.(msg);
+            }
+        }, timeoutInMs);
+    }
+    return -1;
+};
+
+const DEFER_EVENT_LISTENER_TIME$1 = 3000;
+const setSocketKeepAlive = (request, { keepAlive, keepAliveMsecs }, deferTimeMs = DEFER_EVENT_LISTENER_TIME$1) => {
+    if (keepAlive !== true) {
+        return -1;
+    }
+    const registerListener = () => {
+        if (request.socket) {
+            request.socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
+        }
+        else {
+            request.on("socket", (socket) => {
+                socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
+            });
+        }
+    };
+    if (deferTimeMs === 0) {
+        registerListener();
+        return 0;
+    }
+    return timing.setTimeout(registerListener, deferTimeMs);
+};
+
+const DEFER_EVENT_LISTENER_TIME = 3000;
+const setSocketTimeout = (request, reject, timeoutInMs = 0) => {
+    const registerTimeout = (offset) => {
+        const timeout = timeoutInMs - offset;
+        const onTimeout = () => {
+            request.destroy();
+            reject(Object.assign(new Error(`@smithy/node-http-handler - the request socket timed out after ${timeoutInMs} ms of inactivity (configured by client requestHandler).`), { name: "TimeoutError" }));
+        };
+        if (request.socket) {
+            request.socket.setTimeout(timeout, onTimeout);
+            request.on("close", () => request.socket?.removeListener("timeout", onTimeout));
+        }
+        else {
+            request.setTimeout(timeout, onTimeout);
+        }
+    };
+    if (0 < timeoutInMs && timeoutInMs < 6000) {
+        registerTimeout(0);
+        return 0;
+    }
+    return timing.setTimeout(registerTimeout.bind(null, timeoutInMs === 0 ? 0 : DEFER_EVENT_LISTENER_TIME), DEFER_EVENT_LISTENER_TIME);
+};
+
+const MIN_WAIT_TIME = 6_000;
+async function writeRequestBody(httpRequest, request, maxContinueTimeoutMs = MIN_WAIT_TIME, externalAgent = false) {
+    const headers = request.headers ?? {};
+    const expect = headers.Expect || headers.expect;
+    let timeoutId = -1;
+    let sendBody = true;
+    if (!externalAgent && expect === "100-continue") {
+        sendBody = await Promise.race([
+            new Promise((resolve) => {
+                timeoutId = Number(timing.setTimeout(() => resolve(true), Math.max(MIN_WAIT_TIME, maxContinueTimeoutMs)));
+            }),
+            new Promise((resolve) => {
+                httpRequest.on("continue", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(true);
+                });
+                httpRequest.on("response", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(false);
+                });
+                httpRequest.on("error", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(false);
+                });
+            }),
+        ]);
+    }
+    if (sendBody) {
+        writeBody(httpRequest, request.body);
+    }
+}
+function writeBody(httpRequest, body) {
+    if (body instanceof stream.Readable) {
+        body.pipe(httpRequest);
+        return;
+    }
+    if (body) {
+        if (Buffer.isBuffer(body) || typeof body === "string") {
+            httpRequest.end(body);
+            return;
+        }
+        const uint8 = body;
+        if (typeof uint8 === "object" &&
+            uint8.buffer &&
+            typeof uint8.byteOffset === "number" &&
+            typeof uint8.byteLength === "number") {
+            httpRequest.end(Buffer.from(uint8.buffer, uint8.byteOffset, uint8.byteLength));
+            return;
+        }
+        httpRequest.end(Buffer.from(body));
+        return;
+    }
+    httpRequest.end();
+}
+
+const DEFAULT_REQUEST_TIMEOUT = 0;
+class NodeHttpHandler {
+    config;
+    configProvider;
+    socketWarningTimestamp = 0;
+    externalAgent = false;
+    metadata = { handlerProtocol: "http/1.1" };
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new NodeHttpHandler(instanceOrOptions);
+    }
+    static checkSocketUsage(agent, socketWarningTimestamp, logger = console) {
+        const { sockets, requests, maxSockets } = agent;
+        if (typeof maxSockets !== "number" || maxSockets === Infinity) {
+            return socketWarningTimestamp;
+        }
+        const interval = 15_000;
+        if (Date.now() - interval < socketWarningTimestamp) {
+            return socketWarningTimestamp;
+        }
+        if (sockets && requests) {
+            for (const origin in sockets) {
+                const socketsInUse = sockets[origin]?.length ?? 0;
+                const requestsEnqueued = requests[origin]?.length ?? 0;
+                if (socketsInUse >= maxSockets && requestsEnqueued >= 2 * maxSockets) {
+                    logger?.warn?.(`@smithy/node-http-handler:WARN - socket usage at capacity=${socketsInUse} and ${requestsEnqueued} additional requests are enqueued.
+See https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/node-configuring-maxsockets.html
+or increase socketAcquisitionWarningTimeout=(millis) in the NodeHttpHandler config.`);
+                    return Date.now();
+                }
+            }
+        }
+        return socketWarningTimestamp;
+    }
+    constructor(options) {
+        this.configProvider = new Promise((resolve, reject) => {
+            if (typeof options === "function") {
+                options()
+                    .then((_options) => {
+                    resolve(this.resolveDefaultConfig(_options));
+                })
+                    .catch(reject);
+            }
+            else {
+                resolve(this.resolveDefaultConfig(options));
+            }
+        });
+    }
+    resolveDefaultConfig(options) {
+        const { requestTimeout, connectionTimeout, socketTimeout, socketAcquisitionWarningTimeout, httpAgent, httpsAgent, throwOnRequestTimeout, } = options || {};
+        const keepAlive = true;
+        const maxSockets = 50;
+        return {
+            connectionTimeout,
+            requestTimeout,
+            socketTimeout,
+            socketAcquisitionWarningTimeout,
+            throwOnRequestTimeout,
+            httpAgent: (() => {
+                if (httpAgent instanceof http.Agent || typeof httpAgent?.destroy === "function") {
+                    this.externalAgent = true;
+                    return httpAgent;
+                }
+                return new http.Agent({ keepAlive, maxSockets, ...httpAgent });
+            })(),
+            httpsAgent: (() => {
+                if (httpsAgent instanceof https.Agent || typeof httpsAgent?.destroy === "function") {
+                    this.externalAgent = true;
+                    return httpsAgent;
+                }
+                return new https.Agent({ keepAlive, maxSockets, ...httpsAgent });
+            })(),
+            logger: console,
+        };
+    }
+    destroy() {
+        this.config?.httpAgent?.destroy();
+        this.config?.httpsAgent?.destroy();
+    }
+    async handle(request, { abortSignal, requestTimeout } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+        }
+        return new Promise((_resolve, _reject) => {
+            const config = this.config;
+            let writeRequestBodyPromise = undefined;
+            const timeouts = [];
+            const resolve = async (arg) => {
+                await writeRequestBodyPromise;
+                timeouts.forEach(timing.clearTimeout);
+                _resolve(arg);
+            };
+            const reject = async (arg) => {
+                await writeRequestBodyPromise;
+                timeouts.forEach(timing.clearTimeout);
+                _reject(arg);
+            };
+            if (abortSignal?.aborted) {
+                const abortError = new Error("Request aborted");
+                abortError.name = "AbortError";
+                reject(abortError);
+                return;
+            }
+            const isSSL = request.protocol === "https:";
+            const headers = request.headers ?? {};
+            const expectContinue = (headers.Expect ?? headers.expect) === "100-continue";
+            let agent = isSSL ? config.httpsAgent : config.httpAgent;
+            if (expectContinue && !this.externalAgent) {
+                agent = new (isSSL ? https.Agent : http.Agent)({
+                    keepAlive: false,
+                    maxSockets: Infinity,
+                });
+            }
+            timeouts.push(timing.setTimeout(() => {
+                this.socketWarningTimestamp = NodeHttpHandler.checkSocketUsage(agent, this.socketWarningTimestamp, config.logger);
+            }, config.socketAcquisitionWarningTimeout ?? (config.requestTimeout ?? 2000) + (config.connectionTimeout ?? 1000)));
+            const queryString = querystringBuilder.buildQueryString(request.query || {});
+            let auth = undefined;
+            if (request.username != null || request.password != null) {
+                const username = request.username ?? "";
+                const password = request.password ?? "";
+                auth = `${username}:${password}`;
+            }
+            let path = request.path;
+            if (queryString) {
+                path += `?${queryString}`;
+            }
+            if (request.fragment) {
+                path += `#${request.fragment}`;
+            }
+            let hostname = request.hostname ?? "";
+            if (hostname[0] === "[" && hostname.endsWith("]")) {
+                hostname = request.hostname.slice(1, -1);
+            }
+            else {
+                hostname = request.hostname;
+            }
+            const nodeHttpsOptions = {
+                headers: request.headers,
+                host: hostname,
+                method: request.method,
+                path,
+                port: request.port,
+                agent,
+                auth,
+            };
+            const requestFunc = isSSL ? https.request : http.request;
+            const req = requestFunc(nodeHttpsOptions, (res) => {
+                const httpResponse = new protocolHttp.HttpResponse({
+                    statusCode: res.statusCode || -1,
+                    reason: res.statusMessage,
+                    headers: getTransformedHeaders(res.headers),
+                    body: res,
+                });
+                resolve({ response: httpResponse });
+            });
+            req.on("error", (err) => {
+                if (NODEJS_TIMEOUT_ERROR_CODES.includes(err.code)) {
+                    reject(Object.assign(err, { name: "TimeoutError" }));
+                }
+                else {
+                    reject(err);
+                }
+            });
+            if (abortSignal) {
+                const onAbort = () => {
+                    req.destroy();
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    reject(abortError);
+                };
+                if (typeof abortSignal.addEventListener === "function") {
+                    const signal = abortSignal;
+                    signal.addEventListener("abort", onAbort, { once: true });
+                    req.once("close", () => signal.removeEventListener("abort", onAbort));
+                }
+                else {
+                    abortSignal.onabort = onAbort;
+                }
+            }
+            const effectiveRequestTimeout = requestTimeout ?? config.requestTimeout;
+            timeouts.push(setConnectionTimeout(req, reject, config.connectionTimeout));
+            timeouts.push(setRequestTimeout(req, reject, effectiveRequestTimeout, config.throwOnRequestTimeout, config.logger ?? console));
+            timeouts.push(setSocketTimeout(req, reject, config.socketTimeout));
+            const httpAgent = nodeHttpsOptions.agent;
+            if (typeof httpAgent === "object" && "keepAlive" in httpAgent) {
+                timeouts.push(setSocketKeepAlive(req, {
+                    keepAlive: httpAgent.keepAlive,
+                    keepAliveMsecs: httpAgent.keepAliveMsecs,
+                }));
+            }
+            writeRequestBodyPromise = writeRequestBody(req, request, effectiveRequestTimeout, this.externalAgent).catch((e) => {
+                timeouts.forEach(timing.clearTimeout);
+                return _reject(e);
+            });
+        });
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            return {
+                ...config,
+                [key]: value,
+            };
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+}
+
+class NodeHttp2ConnectionPool {
+    sessions = [];
+    constructor(sessions) {
+        this.sessions = sessions ?? [];
+    }
+    poll() {
+        if (this.sessions.length > 0) {
+            return this.sessions.shift();
+        }
+    }
+    offerLast(session) {
+        this.sessions.push(session);
+    }
+    contains(session) {
+        return this.sessions.includes(session);
+    }
+    remove(session) {
+        this.sessions = this.sessions.filter((s) => s !== session);
+    }
+    [Symbol.iterator]() {
+        return this.sessions[Symbol.iterator]();
+    }
+    destroy(connection) {
+        for (const session of this.sessions) {
+            if (session === connection) {
+                if (!session.destroyed) {
+                    session.destroy();
+                }
+            }
+        }
+    }
+}
+
+class NodeHttp2ConnectionManager {
+    constructor(config) {
+        this.config = config;
+        if (this.config.maxConcurrency && this.config.maxConcurrency <= 0) {
+            throw new RangeError("maxConcurrency must be greater than zero.");
+        }
+    }
+    config;
+    sessionCache = new Map();
+    lease(requestContext, connectionConfiguration) {
+        const url = this.getUrlString(requestContext);
+        const existingPool = this.sessionCache.get(url);
+        if (existingPool) {
+            const existingSession = existingPool.poll();
+            if (existingSession && !this.config.disableConcurrency) {
+                return existingSession;
+            }
+        }
+        const session = http2.connect(url);
+        if (this.config.maxConcurrency) {
+            session.settings({ maxConcurrentStreams: this.config.maxConcurrency }, (err) => {
+                if (err) {
+                    throw new Error("Fail to set maxConcurrentStreams to " +
+                        this.config.maxConcurrency +
+                        "when creating new session for " +
+                        requestContext.destination.toString());
+                }
+            });
+        }
+        session.unref();
+        const destroySessionCb = () => {
+            session.destroy();
+            this.deleteSession(url, session);
+        };
+        session.on("goaway", destroySessionCb);
+        session.on("error", destroySessionCb);
+        session.on("frameError", destroySessionCb);
+        session.on("close", () => this.deleteSession(url, session));
+        if (connectionConfiguration.requestTimeout) {
+            session.setTimeout(connectionConfiguration.requestTimeout, destroySessionCb);
+        }
+        const connectionPool = this.sessionCache.get(url) || new NodeHttp2ConnectionPool();
+        connectionPool.offerLast(session);
+        this.sessionCache.set(url, connectionPool);
+        return session;
+    }
+    deleteSession(authority, session) {
+        const existingConnectionPool = this.sessionCache.get(authority);
+        if (!existingConnectionPool) {
+            return;
+        }
+        if (!existingConnectionPool.contains(session)) {
+            return;
+        }
+        existingConnectionPool.remove(session);
+        this.sessionCache.set(authority, existingConnectionPool);
+    }
+    release(requestContext, session) {
+        const cacheKey = this.getUrlString(requestContext);
+        this.sessionCache.get(cacheKey)?.offerLast(session);
+    }
+    destroy() {
+        for (const [key, connectionPool] of this.sessionCache) {
+            for (const session of connectionPool) {
+                if (!session.destroyed) {
+                    session.destroy();
+                }
+                connectionPool.remove(session);
+            }
+            this.sessionCache.delete(key);
+        }
+    }
+    setMaxConcurrentStreams(maxConcurrentStreams) {
+        if (maxConcurrentStreams && maxConcurrentStreams <= 0) {
+            throw new RangeError("maxConcurrentStreams must be greater than zero.");
+        }
+        this.config.maxConcurrency = maxConcurrentStreams;
+    }
+    setDisableConcurrentStreams(disableConcurrentStreams) {
+        this.config.disableConcurrency = disableConcurrentStreams;
+    }
+    getUrlString(request) {
+        return request.destination.toString();
+    }
+}
+
+class NodeHttp2Handler {
+    config;
+    configProvider;
+    metadata = { handlerProtocol: "h2" };
+    connectionManager = new NodeHttp2ConnectionManager({});
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new NodeHttp2Handler(instanceOrOptions);
+    }
+    constructor(options) {
+        this.configProvider = new Promise((resolve, reject) => {
+            if (typeof options === "function") {
+                options()
+                    .then((opts) => {
+                    resolve(opts || {});
+                })
+                    .catch(reject);
+            }
+            else {
+                resolve(options || {});
+            }
+        });
+    }
+    destroy() {
+        this.connectionManager.destroy();
+    }
+    async handle(request, { abortSignal, requestTimeout } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+            this.connectionManager.setDisableConcurrentStreams(this.config.disableConcurrentStreams || false);
+            if (this.config.maxConcurrentStreams) {
+                this.connectionManager.setMaxConcurrentStreams(this.config.maxConcurrentStreams);
+            }
+        }
+        const { requestTimeout: configRequestTimeout, disableConcurrentStreams } = this.config;
+        const effectiveRequestTimeout = requestTimeout ?? configRequestTimeout;
+        return new Promise((_resolve, _reject) => {
+            let fulfilled = false;
+            let writeRequestBodyPromise = undefined;
+            const resolve = async (arg) => {
+                await writeRequestBodyPromise;
+                _resolve(arg);
+            };
+            const reject = async (arg) => {
+                await writeRequestBodyPromise;
+                _reject(arg);
+            };
+            if (abortSignal?.aborted) {
+                fulfilled = true;
+                const abortError = new Error("Request aborted");
+                abortError.name = "AbortError";
+                reject(abortError);
+                return;
+            }
+            const { hostname, method, port, protocol, query } = request;
+            let auth = "";
+            if (request.username != null || request.password != null) {
+                const username = request.username ?? "";
+                const password = request.password ?? "";
+                auth = `${username}:${password}@`;
+            }
+            const authority = `${protocol}//${auth}${hostname}${port ? `:${port}` : ""}`;
+            const requestContext = { destination: new URL(authority) };
+            const session = this.connectionManager.lease(requestContext, {
+                requestTimeout: this.config?.sessionTimeout,
+                disableConcurrentStreams: disableConcurrentStreams || false,
+            });
+            const rejectWithDestroy = (err) => {
+                if (disableConcurrentStreams) {
+                    this.destroySession(session);
+                }
+                fulfilled = true;
+                reject(err);
+            };
+            const queryString = querystringBuilder.buildQueryString(query || {});
+            let path = request.path;
+            if (queryString) {
+                path += `?${queryString}`;
+            }
+            if (request.fragment) {
+                path += `#${request.fragment}`;
+            }
+            const req = session.request({
+                ...request.headers,
+                [http2.constants.HTTP2_HEADER_PATH]: path,
+                [http2.constants.HTTP2_HEADER_METHOD]: method,
+            });
+            session.ref();
+            req.on("response", (headers) => {
+                const httpResponse = new protocolHttp.HttpResponse({
+                    statusCode: headers[":status"] || -1,
+                    headers: getTransformedHeaders(headers),
+                    body: req,
+                });
+                fulfilled = true;
+                resolve({ response: httpResponse });
+                if (disableConcurrentStreams) {
+                    session.close();
+                    this.connectionManager.deleteSession(authority, session);
+                }
+            });
+            if (effectiveRequestTimeout) {
+                req.setTimeout(effectiveRequestTimeout, () => {
+                    req.close();
+                    const timeoutError = new Error(`Stream timed out because of no activity for ${effectiveRequestTimeout} ms`);
+                    timeoutError.name = "TimeoutError";
+                    rejectWithDestroy(timeoutError);
+                });
+            }
+            if (abortSignal) {
+                const onAbort = () => {
+                    req.close();
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    rejectWithDestroy(abortError);
+                };
+                if (typeof abortSignal.addEventListener === "function") {
+                    const signal = abortSignal;
+                    signal.addEventListener("abort", onAbort, { once: true });
+                    req.once("close", () => signal.removeEventListener("abort", onAbort));
+                }
+                else {
+                    abortSignal.onabort = onAbort;
+                }
+            }
+            req.on("frameError", (type, code, id) => {
+                rejectWithDestroy(new Error(`Frame type id ${type} in stream id ${id} has failed with code ${code}.`));
+            });
+            req.on("error", rejectWithDestroy);
+            req.on("aborted", () => {
+                rejectWithDestroy(new Error(`HTTP/2 stream is abnormally aborted in mid-communication with result code ${req.rstCode}.`));
+            });
+            req.on("close", () => {
+                session.unref();
+                if (disableConcurrentStreams) {
+                    session.destroy();
+                }
+                if (!fulfilled) {
+                    rejectWithDestroy(new Error("Unexpected error: http2 request did not get a response"));
+                }
+            });
+            writeRequestBodyPromise = writeRequestBody(req, request, effectiveRequestTimeout);
+        });
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            return {
+                ...config,
+                [key]: value,
+            };
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+    destroySession(session) {
+        if (!session.destroyed) {
+            session.destroy();
+        }
+    }
+}
+
+class Collector extends stream.Writable {
+    bufferedBytes = [];
+    _write(chunk, encoding, callback) {
+        this.bufferedBytes.push(chunk);
+        callback();
+    }
+}
+
+const streamCollector = (stream) => {
+    if (isReadableStreamInstance(stream)) {
+        return collectReadableStream(stream);
+    }
+    return new Promise((resolve, reject) => {
+        const collector = new Collector();
+        stream.pipe(collector);
+        stream.on("error", (err) => {
+            collector.end();
+            reject(err);
+        });
+        collector.on("error", reject);
+        collector.on("finish", function () {
+            const bytes = new Uint8Array(Buffer.concat(this.bufferedBytes));
+            resolve(bytes);
+        });
+    });
+};
+const isReadableStreamInstance = (stream) => typeof ReadableStream === "function" && stream instanceof ReadableStream;
+async function collectReadableStream(stream) {
+    const chunks = [];
+    const reader = stream.getReader();
+    let isDone = false;
+    let length = 0;
+    while (!isDone) {
+        const { done, value } = await reader.read();
+        if (value) {
+            chunks.push(value);
+            length += value.length;
+        }
+        isDone = done;
+    }
+    const collected = new Uint8Array(length);
+    let offset = 0;
+    for (const chunk of chunks) {
+        collected.set(chunk, offset);
+        offset += chunk.length;
+    }
+    return collected;
+}
+
+exports.DEFAULT_REQUEST_TIMEOUT = DEFAULT_REQUEST_TIMEOUT;
+exports.NodeHttp2Handler = NodeHttp2Handler;
+exports.NodeHttpHandler = NodeHttpHandler;
+exports.streamCollector = streamCollector;

backend/node_modules/@smithy/node-http-handler/dist-es/constants.js

@@ -0,0 +1 @@
+export const NODEJS_TIMEOUT_ERROR_CODES = ["ECONNRESET", "EPIPE", "ETIMEDOUT"];

backend/node_modules/@smithy/node-http-handler/dist-es/get-transformed-headers.js

@@ -0,0 +1,9 @@
+const getTransformedHeaders = (headers) => {
+    const transformedHeaders = {};
+    for (const name of Object.keys(headers)) {
+        const headerValues = headers[name];
+        transformedHeaders[name] = Array.isArray(headerValues) ? headerValues.join(",") : headerValues;
+    }
+    return transformedHeaders;
+};
+export { getTransformedHeaders };

backend/node_modules/@smithy/node-http-handler/dist-es/index.js

@@ -0,0 +1,3 @@
+export * from "./node-http-handler";
+export * from "./node-http2-handler";
+export * from "./stream-collector";

backend/node_modules/@smithy/node-http-handler/dist-es/node-http-handler.js

@@ -0,0 +1,224 @@
+import { HttpResponse } from "@smithy/protocol-http";
+import { buildQueryString } from "@smithy/querystring-builder";
+import { Agent as hAgent, request as hRequest } from "http";
+import { Agent as hsAgent, request as hsRequest } from "https";
+import { NODEJS_TIMEOUT_ERROR_CODES } from "./constants";
+import { getTransformedHeaders } from "./get-transformed-headers";
+import { setConnectionTimeout } from "./set-connection-timeout";
+import { setRequestTimeout } from "./set-request-timeout";
+import { setSocketKeepAlive } from "./set-socket-keep-alive";
+import { setSocketTimeout } from "./set-socket-timeout";
+import { timing } from "./timing";
+import { writeRequestBody } from "./write-request-body";
+export const DEFAULT_REQUEST_TIMEOUT = 0;
+export class NodeHttpHandler {
+    config;
+    configProvider;
+    socketWarningTimestamp = 0;
+    externalAgent = false;
+    metadata = { handlerProtocol: "http/1.1" };
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new NodeHttpHandler(instanceOrOptions);
+    }
+    static checkSocketUsage(agent, socketWarningTimestamp, logger = console) {
+        const { sockets, requests, maxSockets } = agent;
+        if (typeof maxSockets !== "number" || maxSockets === Infinity) {
+            return socketWarningTimestamp;
+        }
+        const interval = 15_000;
+        if (Date.now() - interval < socketWarningTimestamp) {
+            return socketWarningTimestamp;
+        }
+        if (sockets && requests) {
+            for (const origin in sockets) {
+                const socketsInUse = sockets[origin]?.length ?? 0;
+                const requestsEnqueued = requests[origin]?.length ?? 0;
+                if (socketsInUse >= maxSockets && requestsEnqueued >= 2 * maxSockets) {
+                    logger?.warn?.(`@smithy/node-http-handler:WARN - socket usage at capacity=${socketsInUse} and ${requestsEnqueued} additional requests are enqueued.
+See https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/node-configuring-maxsockets.html
+or increase socketAcquisitionWarningTimeout=(millis) in the NodeHttpHandler config.`);
+                    return Date.now();
+                }
+            }
+        }
+        return socketWarningTimestamp;
+    }
+    constructor(options) {
+        this.configProvider = new Promise((resolve, reject) => {
+            if (typeof options === "function") {
+                options()
+                    .then((_options) => {
+                    resolve(this.resolveDefaultConfig(_options));
+                })
+                    .catch(reject);
+            }
+            else {
+                resolve(this.resolveDefaultConfig(options));
+            }
+        });
+    }
+    resolveDefaultConfig(options) {
+        const { requestTimeout, connectionTimeout, socketTimeout, socketAcquisitionWarningTimeout, httpAgent, httpsAgent, throwOnRequestTimeout, } = options || {};
+        const keepAlive = true;
+        const maxSockets = 50;
+        return {
+            connectionTimeout,
+            requestTimeout,
+            socketTimeout,
+            socketAcquisitionWarningTimeout,
+            throwOnRequestTimeout,
+            httpAgent: (() => {
+                if (httpAgent instanceof hAgent || typeof httpAgent?.destroy === "function") {
+                    this.externalAgent = true;
+                    return httpAgent;
+                }
+                return new hAgent({ keepAlive, maxSockets, ...httpAgent });
+            })(),
+            httpsAgent: (() => {
+                if (httpsAgent instanceof hsAgent || typeof httpsAgent?.destroy === "function") {
+                    this.externalAgent = true;
+                    return httpsAgent;
+                }
+                return new hsAgent({ keepAlive, maxSockets, ...httpsAgent });
+            })(),
+            logger: console,
+        };
+    }
+    destroy() {
+        this.config?.httpAgent?.destroy();
+        this.config?.httpsAgent?.destroy();
+    }
+    async handle(request, { abortSignal, requestTimeout } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+        }
+        return new Promise((_resolve, _reject) => {
+            const config = this.config;
+            let writeRequestBodyPromise = undefined;
+            const timeouts = [];
+            const resolve = async (arg) => {
+                await writeRequestBodyPromise;
+                timeouts.forEach(timing.clearTimeout);
+                _resolve(arg);
+            };
+            const reject = async (arg) => {
+                await writeRequestBodyPromise;
+                timeouts.forEach(timing.clearTimeout);
+                _reject(arg);
+            };
+            if (abortSignal?.aborted) {
+                const abortError = new Error("Request aborted");
+                abortError.name = "AbortError";
+                reject(abortError);
+                return;
+            }
+            const isSSL = request.protocol === "https:";
+            const headers = request.headers ?? {};
+            const expectContinue = (headers.Expect ?? headers.expect) === "100-continue";
+            let agent = isSSL ? config.httpsAgent : config.httpAgent;
+            if (expectContinue && !this.externalAgent) {
+                agent = new (isSSL ? hsAgent : hAgent)({
+                    keepAlive: false,
+                    maxSockets: Infinity,
+                });
+            }
+            timeouts.push(timing.setTimeout(() => {
+                this.socketWarningTimestamp = NodeHttpHandler.checkSocketUsage(agent, this.socketWarningTimestamp, config.logger);
+            }, config.socketAcquisitionWarningTimeout ?? (config.requestTimeout ?? 2000) + (config.connectionTimeout ?? 1000)));
+            const queryString = buildQueryString(request.query || {});
+            let auth = undefined;
+            if (request.username != null || request.password != null) {
+                const username = request.username ?? "";
+                const password = request.password ?? "";
+                auth = `${username}:${password}`;
+            }
+            let path = request.path;
+            if (queryString) {
+                path += `?${queryString}`;
+            }
+            if (request.fragment) {
+                path += `#${request.fragment}`;
+            }
+            let hostname = request.hostname ?? "";
+            if (hostname[0] === "[" && hostname.endsWith("]")) {
+                hostname = request.hostname.slice(1, -1);
+            }
+            else {
+                hostname = request.hostname;
+            }
+            const nodeHttpsOptions = {
+                headers: request.headers,
+                host: hostname,
+                method: request.method,
+                path,
+                port: request.port,
+                agent,
+                auth,
+            };
+            const requestFunc = isSSL ? hsRequest : hRequest;
+            const req = requestFunc(nodeHttpsOptions, (res) => {
+                const httpResponse = new HttpResponse({
+                    statusCode: res.statusCode || -1,
+                    reason: res.statusMessage,
+                    headers: getTransformedHeaders(res.headers),
+                    body: res,
+                });
+                resolve({ response: httpResponse });
+            });
+            req.on("error", (err) => {
+                if (NODEJS_TIMEOUT_ERROR_CODES.includes(err.code)) {
+                    reject(Object.assign(err, { name: "TimeoutError" }));
+                }
+                else {
+                    reject(err);
+                }
+            });
+            if (abortSignal) {
+                const onAbort = () => {
+                    req.destroy();
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    reject(abortError);
+                };
+                if (typeof abortSignal.addEventListener === "function") {
+                    const signal = abortSignal;
+                    signal.addEventListener("abort", onAbort, { once: true });
+                    req.once("close", () => signal.removeEventListener("abort", onAbort));
+                }
+                else {
+                    abortSignal.onabort = onAbort;
+                }
+            }
+            const effectiveRequestTimeout = requestTimeout ?? config.requestTimeout;
+            timeouts.push(setConnectionTimeout(req, reject, config.connectionTimeout));
+            timeouts.push(setRequestTimeout(req, reject, effectiveRequestTimeout, config.throwOnRequestTimeout, config.logger ?? console));
+            timeouts.push(setSocketTimeout(req, reject, config.socketTimeout));
+            const httpAgent = nodeHttpsOptions.agent;
+            if (typeof httpAgent === "object" && "keepAlive" in httpAgent) {
+                timeouts.push(setSocketKeepAlive(req, {
+                    keepAlive: httpAgent.keepAlive,
+                    keepAliveMsecs: httpAgent.keepAliveMsecs,
+                }));
+            }
+            writeRequestBodyPromise = writeRequestBody(req, request, effectiveRequestTimeout, this.externalAgent).catch((e) => {
+                timeouts.forEach(timing.clearTimeout);
+                return _reject(e);
+            });
+        });
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            return {
+                ...config,
+                [key]: value,
+            };
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/node-http2-connection-manager.js

@@ -0,0 +1,87 @@
+import http2 from "http2";
+import { NodeHttp2ConnectionPool } from "./node-http2-connection-pool";
+export class NodeHttp2ConnectionManager {
+    constructor(config) {
+        this.config = config;
+        if (this.config.maxConcurrency && this.config.maxConcurrency <= 0) {
+            throw new RangeError("maxConcurrency must be greater than zero.");
+        }
+    }
+    config;
+    sessionCache = new Map();
+    lease(requestContext, connectionConfiguration) {
+        const url = this.getUrlString(requestContext);
+        const existingPool = this.sessionCache.get(url);
+        if (existingPool) {
+            const existingSession = existingPool.poll();
+            if (existingSession && !this.config.disableConcurrency) {
+                return existingSession;
+            }
+        }
+        const session = http2.connect(url);
+        if (this.config.maxConcurrency) {
+            session.settings({ maxConcurrentStreams: this.config.maxConcurrency }, (err) => {
+                if (err) {
+                    throw new Error("Fail to set maxConcurrentStreams to " +
+                        this.config.maxConcurrency +
+                        "when creating new session for " +
+                        requestContext.destination.toString());
+                }
+            });
+        }
+        session.unref();
+        const destroySessionCb = () => {
+            session.destroy();
+            this.deleteSession(url, session);
+        };
+        session.on("goaway", destroySessionCb);
+        session.on("error", destroySessionCb);
+        session.on("frameError", destroySessionCb);
+        session.on("close", () => this.deleteSession(url, session));
+        if (connectionConfiguration.requestTimeout) {
+            session.setTimeout(connectionConfiguration.requestTimeout, destroySessionCb);
+        }
+        const connectionPool = this.sessionCache.get(url) || new NodeHttp2ConnectionPool();
+        connectionPool.offerLast(session);
+        this.sessionCache.set(url, connectionPool);
+        return session;
+    }
+    deleteSession(authority, session) {
+        const existingConnectionPool = this.sessionCache.get(authority);
+        if (!existingConnectionPool) {
+            return;
+        }
+        if (!existingConnectionPool.contains(session)) {
+            return;
+        }
+        existingConnectionPool.remove(session);
+        this.sessionCache.set(authority, existingConnectionPool);
+    }
+    release(requestContext, session) {
+        const cacheKey = this.getUrlString(requestContext);
+        this.sessionCache.get(cacheKey)?.offerLast(session);
+    }
+    destroy() {
+        for (const [key, connectionPool] of this.sessionCache) {
+            for (const session of connectionPool) {
+                if (!session.destroyed) {
+                    session.destroy();
+                }
+                connectionPool.remove(session);
+            }
+            this.sessionCache.delete(key);
+        }
+    }
+    setMaxConcurrentStreams(maxConcurrentStreams) {
+        if (maxConcurrentStreams && maxConcurrentStreams <= 0) {
+            throw new RangeError("maxConcurrentStreams must be greater than zero.");
+        }
+        this.config.maxConcurrency = maxConcurrentStreams;
+    }
+    setDisableConcurrentStreams(disableConcurrentStreams) {
+        this.config.disableConcurrency = disableConcurrentStreams;
+    }
+    getUrlString(request) {
+        return request.destination.toString();
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/node-http2-connection-pool.js

@@ -0,0 +1,32 @@
+export class NodeHttp2ConnectionPool {
+    sessions = [];
+    constructor(sessions) {
+        this.sessions = sessions ?? [];
+    }
+    poll() {
+        if (this.sessions.length > 0) {
+            return this.sessions.shift();
+        }
+    }
+    offerLast(session) {
+        this.sessions.push(session);
+    }
+    contains(session) {
+        return this.sessions.includes(session);
+    }
+    remove(session) {
+        this.sessions = this.sessions.filter((s) => s !== session);
+    }
+    [Symbol.iterator]() {
+        return this.sessions[Symbol.iterator]();
+    }
+    destroy(connection) {
+        for (const session of this.sessions) {
+            if (session === connection) {
+                if (!session.destroyed) {
+                    session.destroy();
+                }
+            }
+        }
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/node-http2-handler.js

@@ -0,0 +1,170 @@
+import { HttpResponse } from "@smithy/protocol-http";
+import { buildQueryString } from "@smithy/querystring-builder";
+import { constants } from "http2";
+import { getTransformedHeaders } from "./get-transformed-headers";
+import { NodeHttp2ConnectionManager } from "./node-http2-connection-manager";
+import { writeRequestBody } from "./write-request-body";
+export class NodeHttp2Handler {
+    config;
+    configProvider;
+    metadata = { handlerProtocol: "h2" };
+    connectionManager = new NodeHttp2ConnectionManager({});
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new NodeHttp2Handler(instanceOrOptions);
+    }
+    constructor(options) {
+        this.configProvider = new Promise((resolve, reject) => {
+            if (typeof options === "function") {
+                options()
+                    .then((opts) => {
+                    resolve(opts || {});
+                })
+                    .catch(reject);
+            }
+            else {
+                resolve(options || {});
+            }
+        });
+    }
+    destroy() {
+        this.connectionManager.destroy();
+    }
+    async handle(request, { abortSignal, requestTimeout } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+            this.connectionManager.setDisableConcurrentStreams(this.config.disableConcurrentStreams || false);
+            if (this.config.maxConcurrentStreams) {
+                this.connectionManager.setMaxConcurrentStreams(this.config.maxConcurrentStreams);
+            }
+        }
+        const { requestTimeout: configRequestTimeout, disableConcurrentStreams } = this.config;
+        const effectiveRequestTimeout = requestTimeout ?? configRequestTimeout;
+        return new Promise((_resolve, _reject) => {
+            let fulfilled = false;
+            let writeRequestBodyPromise = undefined;
+            const resolve = async (arg) => {
+                await writeRequestBodyPromise;
+                _resolve(arg);
+            };
+            const reject = async (arg) => {
+                await writeRequestBodyPromise;
+                _reject(arg);
+            };
+            if (abortSignal?.aborted) {
+                fulfilled = true;
+                const abortError = new Error("Request aborted");
+                abortError.name = "AbortError";
+                reject(abortError);
+                return;
+            }
+            const { hostname, method, port, protocol, query } = request;
+            let auth = "";
+            if (request.username != null || request.password != null) {
+                const username = request.username ?? "";
+                const password = request.password ?? "";
+                auth = `${username}:${password}@`;
+            }
+            const authority = `${protocol}//${auth}${hostname}${port ? `:${port}` : ""}`;
+            const requestContext = { destination: new URL(authority) };
+            const session = this.connectionManager.lease(requestContext, {
+                requestTimeout: this.config?.sessionTimeout,
+                disableConcurrentStreams: disableConcurrentStreams || false,
+            });
+            const rejectWithDestroy = (err) => {
+                if (disableConcurrentStreams) {
+                    this.destroySession(session);
+                }
+                fulfilled = true;
+                reject(err);
+            };
+            const queryString = buildQueryString(query || {});
+            let path = request.path;
+            if (queryString) {
+                path += `?${queryString}`;
+            }
+            if (request.fragment) {
+                path += `#${request.fragment}`;
+            }
+            const req = session.request({
+                ...request.headers,
+                [constants.HTTP2_HEADER_PATH]: path,
+                [constants.HTTP2_HEADER_METHOD]: method,
+            });
+            session.ref();
+            req.on("response", (headers) => {
+                const httpResponse = new HttpResponse({
+                    statusCode: headers[":status"] || -1,
+                    headers: getTransformedHeaders(headers),
+                    body: req,
+                });
+                fulfilled = true;
+                resolve({ response: httpResponse });
+                if (disableConcurrentStreams) {
+                    session.close();
+                    this.connectionManager.deleteSession(authority, session);
+                }
+            });
+            if (effectiveRequestTimeout) {
+                req.setTimeout(effectiveRequestTimeout, () => {
+                    req.close();
+                    const timeoutError = new Error(`Stream timed out because of no activity for ${effectiveRequestTimeout} ms`);
+                    timeoutError.name = "TimeoutError";
+                    rejectWithDestroy(timeoutError);
+                });
+            }
+            if (abortSignal) {
+                const onAbort = () => {
+                    req.close();
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    rejectWithDestroy(abortError);
+                };
+                if (typeof abortSignal.addEventListener === "function") {
+                    const signal = abortSignal;
+                    signal.addEventListener("abort", onAbort, { once: true });
+                    req.once("close", () => signal.removeEventListener("abort", onAbort));
+                }
+                else {
+                    abortSignal.onabort = onAbort;
+                }
+            }
+            req.on("frameError", (type, code, id) => {
+                rejectWithDestroy(new Error(`Frame type id ${type} in stream id ${id} has failed with code ${code}.`));
+            });
+            req.on("error", rejectWithDestroy);
+            req.on("aborted", () => {
+                rejectWithDestroy(new Error(`HTTP/2 stream is abnormally aborted in mid-communication with result code ${req.rstCode}.`));
+            });
+            req.on("close", () => {
+                session.unref();
+                if (disableConcurrentStreams) {
+                    session.destroy();
+                }
+                if (!fulfilled) {
+                    rejectWithDestroy(new Error("Unexpected error: http2 request did not get a response"));
+                }
+            });
+            writeRequestBodyPromise = writeRequestBody(req, request, effectiveRequestTimeout);
+        });
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            return {
+                ...config,
+                [key]: value,
+            };
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+    destroySession(session) {
+        if (!session.destroyed) {
+            session.destroy();
+        }
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/readable.mock.js

@@ -0,0 +1,21 @@
+import { Readable } from "stream";
+export class ReadFromBuffers extends Readable {
+    buffersToRead;
+    numBuffersRead = 0;
+    errorAfter;
+    constructor(options) {
+        super(options);
+        this.buffersToRead = options.buffers;
+        this.errorAfter = typeof options.errorAfter === "number" ? options.errorAfter : -1;
+    }
+    _read() {
+        if (this.errorAfter !== -1 && this.errorAfter === this.numBuffersRead) {
+            this.emit("error", new Error("Mock Error"));
+            return;
+        }
+        if (this.numBuffersRead >= this.buffersToRead.length) {
+            return this.push(null);
+        }
+        return this.push(this.buffersToRead[this.numBuffersRead++]);
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/server.mock.js

@@ -0,0 +1,88 @@
+import { readFileSync } from "fs";
+import { createServer as createHttpServer } from "http";
+import { createServer as createHttp2Server } from "http2";
+import { createServer as createHttpsServer } from "https";
+import { join } from "path";
+import { Readable } from "stream";
+import { timing } from "./timing";
+const fixturesDir = join(__dirname, "..", "fixtures");
+const setResponseHeaders = (response, headers) => {
+    for (const [key, value] of Object.entries(headers)) {
+        response.setHeader(key, value);
+    }
+};
+const setResponseBody = (response, body) => {
+    if (body instanceof Readable) {
+        body.pipe(response);
+    }
+    else {
+        response.end(body);
+    }
+};
+export const createResponseFunction = (httpResp) => (request, response) => {
+    response.statusCode = httpResp.statusCode;
+    if (httpResp.reason) {
+        response.statusMessage = httpResp.reason;
+    }
+    setResponseHeaders(response, httpResp.headers);
+    setResponseBody(response, httpResp.body);
+};
+export const createResponseFunctionWithDelay = (httpResp, delay) => (request, response) => {
+    response.statusCode = httpResp.statusCode;
+    if (httpResp.reason) {
+        response.statusMessage = httpResp.reason;
+    }
+    setResponseHeaders(response, httpResp.headers);
+    timing.setTimeout(() => setResponseBody(response, httpResp.body), delay);
+};
+export const createContinueResponseFunction = (httpResp) => (request, response) => {
+    response.writeContinue();
+    timing.setTimeout(() => {
+        createResponseFunction(httpResp)(request, response);
+    }, 100);
+};
+export const createMockHttpsServer = () => {
+    const server = createHttpsServer({
+        key: readFileSync(join(fixturesDir, "test-server-key.pem")),
+        cert: readFileSync(join(fixturesDir, "test-server-cert.pem")),
+    });
+    return server;
+};
+export const createMockHttpServer = () => {
+    const server = createHttpServer();
+    return server;
+};
+export const createMockHttp2Server = () => {
+    const server = createHttp2Server();
+    return server;
+};
+export const createMirrorResponseFunction = (httpResp) => (request, response) => {
+    const bufs = [];
+    request.on("data", (chunk) => {
+        bufs.push(chunk);
+    });
+    request.on("end", () => {
+        response.statusCode = httpResp.statusCode;
+        setResponseHeaders(response, httpResp.headers);
+        setResponseBody(response, Buffer.concat(bufs));
+    });
+    request.on("error", (err) => {
+        response.statusCode = 500;
+        setResponseHeaders(response, httpResp.headers);
+        setResponseBody(response, err.message);
+    });
+};
+export const getResponseBody = (response) => {
+    return new Promise((resolve, reject) => {
+        const bufs = [];
+        response.body.on("data", function (d) {
+            bufs.push(d);
+        });
+        response.body.on("end", function () {
+            resolve(Buffer.concat(bufs).toString());
+        });
+        response.body.on("error", (err) => {
+            reject(err);
+        });
+    });
+};

backend/node_modules/@smithy/node-http-handler/dist-es/set-connection-timeout.js

@@ -0,0 +1,36 @@
+import { timing } from "./timing";
+const DEFER_EVENT_LISTENER_TIME = 1000;
+export const setConnectionTimeout = (request, reject, timeoutInMs = 0) => {
+    if (!timeoutInMs) {
+        return -1;
+    }
+    const registerTimeout = (offset) => {
+        const timeoutId = timing.setTimeout(() => {
+            request.destroy();
+            reject(Object.assign(new Error(`@smithy/node-http-handler - the request socket did not establish a connection with the server within the configured timeout of ${timeoutInMs} ms.`), {
+                name: "TimeoutError",
+            }));
+        }, timeoutInMs - offset);
+        const doWithSocket = (socket) => {
+            if (socket?.connecting) {
+                socket.on("connect", () => {
+                    timing.clearTimeout(timeoutId);
+                });
+            }
+            else {
+                timing.clearTimeout(timeoutId);
+            }
+        };
+        if (request.socket) {
+            doWithSocket(request.socket);
+        }
+        else {
+            request.on("socket", doWithSocket);
+        }
+    };
+    if (timeoutInMs < 2000) {
+        registerTimeout(0);
+        return 0;
+    }
+    return timing.setTimeout(registerTimeout.bind(null, DEFER_EVENT_LISTENER_TIME), DEFER_EVENT_LISTENER_TIME);
+};

backend/node_modules/@smithy/node-http-handler/dist-es/set-request-timeout.js

@@ -0,0 +1,21 @@
+import { timing } from "./timing";
+export const setRequestTimeout = (req, reject, timeoutInMs = 0, throwOnRequestTimeout, logger) => {
+    if (timeoutInMs) {
+        return timing.setTimeout(() => {
+            let msg = `@smithy/node-http-handler - [${throwOnRequestTimeout ? "ERROR" : "WARN"}] a request has exceeded the configured ${timeoutInMs} ms requestTimeout.`;
+            if (throwOnRequestTimeout) {
+                const error = Object.assign(new Error(msg), {
+                    name: "TimeoutError",
+                    code: "ETIMEDOUT",
+                });
+                req.destroy(error);
+                reject(error);
+            }
+            else {
+                msg += ` Init client requestHandler with throwOnRequestTimeout=true to turn this into an error.`;
+                logger?.warn?.(msg);
+            }
+        }, timeoutInMs);
+    }
+    return -1;
+};

backend/node_modules/@smithy/node-http-handler/dist-es/set-socket-keep-alive.js

@@ -0,0 +1,22 @@
+import { timing } from "./timing";
+const DEFER_EVENT_LISTENER_TIME = 3000;
+export const setSocketKeepAlive = (request, { keepAlive, keepAliveMsecs }, deferTimeMs = DEFER_EVENT_LISTENER_TIME) => {
+    if (keepAlive !== true) {
+        return -1;
+    }
+    const registerListener = () => {
+        if (request.socket) {
+            request.socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
+        }
+        else {
+            request.on("socket", (socket) => {
+                socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
+            });
+        }
+    };
+    if (deferTimeMs === 0) {
+        registerListener();
+        return 0;
+    }
+    return timing.setTimeout(registerListener, deferTimeMs);
+};

backend/node_modules/@smithy/node-http-handler/dist-es/set-socket-timeout.js

@@ -0,0 +1,23 @@
+import { timing } from "./timing";
+const DEFER_EVENT_LISTENER_TIME = 3000;
+export const setSocketTimeout = (request, reject, timeoutInMs = 0) => {
+    const registerTimeout = (offset) => {
+        const timeout = timeoutInMs - offset;
+        const onTimeout = () => {
+            request.destroy();
+            reject(Object.assign(new Error(`@smithy/node-http-handler - the request socket timed out after ${timeoutInMs} ms of inactivity (configured by client requestHandler).`), { name: "TimeoutError" }));
+        };
+        if (request.socket) {
+            request.socket.setTimeout(timeout, onTimeout);
+            request.on("close", () => request.socket?.removeListener("timeout", onTimeout));
+        }
+        else {
+            request.setTimeout(timeout, onTimeout);
+        }
+    };
+    if (0 < timeoutInMs && timeoutInMs < 6000) {
+        registerTimeout(0);
+        return 0;
+    }
+    return timing.setTimeout(registerTimeout.bind(null, timeoutInMs === 0 ? 0 : DEFER_EVENT_LISTENER_TIME), DEFER_EVENT_LISTENER_TIME);
+};

backend/node_modules/@smithy/node-http-handler/dist-es/stream-collector/collector.js

@@ -0,0 +1,8 @@
+import { Writable } from "stream";
+export class Collector extends Writable {
+    bufferedBytes = [];
+    _write(chunk, encoding, callback) {
+        this.bufferedBytes.push(chunk);
+        callback();
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/stream-collector/index.js

@@ -0,0 +1,41 @@
+import { Collector } from "./collector";
+export const streamCollector = (stream) => {
+    if (isReadableStreamInstance(stream)) {
+        return collectReadableStream(stream);
+    }
+    return new Promise((resolve, reject) => {
+        const collector = new Collector();
+        stream.pipe(collector);
+        stream.on("error", (err) => {
+            collector.end();
+            reject(err);
+        });
+        collector.on("error", reject);
+        collector.on("finish", function () {
+            const bytes = new Uint8Array(Buffer.concat(this.bufferedBytes));
+            resolve(bytes);
+        });
+    });
+};
+const isReadableStreamInstance = (stream) => typeof ReadableStream === "function" && stream instanceof ReadableStream;
+async function collectReadableStream(stream) {
+    const chunks = [];
+    const reader = stream.getReader();
+    let isDone = false;
+    let length = 0;
+    while (!isDone) {
+        const { done, value } = await reader.read();
+        if (value) {
+            chunks.push(value);
+            length += value.length;
+        }
+        isDone = done;
+    }
+    const collected = new Uint8Array(length);
+    let offset = 0;
+    for (const chunk of chunks) {
+        collected.set(chunk, offset);
+        offset += chunk.length;
+    }
+    return collected;
+}

backend/node_modules/@smithy/node-http-handler/dist-es/stream-collector/readable.mock.js

@@ -0,0 +1,21 @@
+import { Readable } from "stream";
+export class ReadFromBuffers extends Readable {
+    buffersToRead;
+    numBuffersRead = 0;
+    errorAfter;
+    constructor(options) {
+        super(options);
+        this.buffersToRead = options.buffers;
+        this.errorAfter = typeof options.errorAfter === "number" ? options.errorAfter : -1;
+    }
+    _read(size) {
+        if (this.errorAfter !== -1 && this.errorAfter === this.numBuffersRead) {
+            this.emit("error", new Error("Mock Error"));
+            return;
+        }
+        if (this.numBuffersRead >= this.buffersToRead.length) {
+            return this.push(null);
+        }
+        return this.push(this.buffersToRead[this.numBuffersRead++]);
+    }
+}

backend/node_modules/@smithy/node-http-handler/dist-es/timing.js

@@ -0,0 +1,4 @@
+export const timing = {
+    setTimeout: (cb, ms) => setTimeout(cb, ms),
+    clearTimeout: (timeoutId) => clearTimeout(timeoutId),
+};

backend/node_modules/@smithy/node-http-handler/dist-es/write-request-body.js

@@ -0,0 +1,56 @@
+import { Readable } from "stream";
+import { timing } from "./timing";
+const MIN_WAIT_TIME = 6_000;
+export async function writeRequestBody(httpRequest, request, maxContinueTimeoutMs = MIN_WAIT_TIME, externalAgent = false) {
+    const headers = request.headers ?? {};
+    const expect = headers.Expect || headers.expect;
+    let timeoutId = -1;
+    let sendBody = true;
+    if (!externalAgent && expect === "100-continue") {
+        sendBody = await Promise.race([
+            new Promise((resolve) => {
+                timeoutId = Number(timing.setTimeout(() => resolve(true), Math.max(MIN_WAIT_TIME, maxContinueTimeoutMs)));
+            }),
+            new Promise((resolve) => {
+                httpRequest.on("continue", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(true);
+                });
+                httpRequest.on("response", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(false);
+                });
+                httpRequest.on("error", () => {
+                    timing.clearTimeout(timeoutId);
+                    resolve(false);
+                });
+            }),
+        ]);
+    }
+    if (sendBody) {
+        writeBody(httpRequest, request.body);
+    }
+}
+function writeBody(httpRequest, body) {
+    if (body instanceof Readable) {
+        body.pipe(httpRequest);
+        return;
+    }
+    if (body) {
+        if (Buffer.isBuffer(body) || typeof body === "string") {
+            httpRequest.end(body);
+            return;
+        }
+        const uint8 = body;
+        if (typeof uint8 === "object" &&
+            uint8.buffer &&
+            typeof uint8.byteOffset === "number" &&
+            typeof uint8.byteLength === "number") {
+            httpRequest.end(Buffer.from(uint8.buffer, uint8.byteOffset, uint8.byteLength));
+            return;
+        }
+        httpRequest.end(Buffer.from(body));
+        return;
+    }
+    httpRequest.end();
+}

backend/node_modules/@smithy/node-http-handler/dist-types/constants.d.ts

@@ -0,0 +1,5 @@
+/**
+ * Node.js system error codes that indicate timeout.
+ * @deprecated use NODEJS_TIMEOUT_ERROR_CODES from @smithy/service-error-classification/constants
+ */
+export declare const NODEJS_TIMEOUT_ERROR_CODES: string[];

backend/node_modules/@smithy/node-http-handler/dist-types/get-transformed-headers.d.ts

@@ -0,0 +1,4 @@
+import type { HeaderBag } from "@smithy/types";
+import type { IncomingHttpHeaders } from "http2";
+declare const getTransformedHeaders: (headers: IncomingHttpHeaders) => HeaderBag;
+export { getTransformedHeaders };

backend/node_modules/@smithy/node-http-handler/dist-types/index.d.ts

@@ -0,0 +1,3 @@
+export * from "./node-http-handler";
+export * from "./node-http2-handler";
+export * from "./stream-collector";

backend/node_modules/@smithy/node-http-handler/dist-types/node-http-handler.d.ts

@@ -0,0 +1,46 @@
+import type { HttpHandler, HttpRequest } from "@smithy/protocol-http";
+import { HttpResponse } from "@smithy/protocol-http";
+import type { HttpHandlerOptions, Logger, NodeHttpHandlerOptions, Provider } from "@smithy/types";
+import { Agent as hAgent } from "http";
+import { Agent as hsAgent } from "https";
+export { NodeHttpHandlerOptions };
+/**
+ * @public
+ * A default of 0 means no timeout.
+ */
+export declare const DEFAULT_REQUEST_TIMEOUT = 0;
+/**
+ * @public
+ * A request handler that uses the Node.js http and https modules.
+ */
+export declare class NodeHttpHandler implements HttpHandler<NodeHttpHandlerOptions> {
+    private config?;
+    private configProvider;
+    private socketWarningTimestamp;
+    private externalAgent;
+    readonly metadata: {
+        handlerProtocol: string;
+    };
+    /**
+     * @returns the input if it is an HttpHandler of any class,
+     * or instantiates a new instance of this handler.
+     */
+    static create(instanceOrOptions?: HttpHandler<any> | NodeHttpHandlerOptions | Provider<NodeHttpHandlerOptions | void>): NodeHttpHandler | HttpHandler<any>;
+    /**
+     * @internal
+     *
+     * @param agent - http(s) agent in use by the NodeHttpHandler instance.
+     * @param socketWarningTimestamp - last socket usage check timestamp.
+     * @param logger - channel for the warning.
+     * @returns timestamp of last emitted warning.
+     */
+    static checkSocketUsage(agent: hAgent | hsAgent, socketWarningTimestamp: number, logger?: Logger): number;
+    constructor(options?: NodeHttpHandlerOptions | Provider<NodeHttpHandlerOptions | void>);
+    private resolveDefaultConfig;
+    destroy(): void;
+    handle(request: HttpRequest, { abortSignal, requestTimeout }?: HttpHandlerOptions): Promise<{
+        response: HttpResponse;
+    }>;
+    updateHttpClientConfig(key: keyof NodeHttpHandlerOptions, value: NodeHttpHandlerOptions[typeof key]): void;
+    httpHandlerConfigs(): NodeHttpHandlerOptions;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/node-http2-connection-manager.d.ts

@@ -0,0 +1,24 @@
+import type { RequestContext } from "@smithy/types";
+import type { ConnectConfiguration } from "@smithy/types";
+import type { ConnectionManager, ConnectionManagerConfiguration } from "@smithy/types";
+import type { ClientHttp2Session } from "http2";
+/**
+ * @public
+ */
+export declare class NodeHttp2ConnectionManager implements ConnectionManager<ClientHttp2Session> {
+    constructor(config: ConnectionManagerConfiguration);
+    private config;
+    private readonly sessionCache;
+    lease(requestContext: RequestContext, connectionConfiguration: ConnectConfiguration): ClientHttp2Session;
+    /**
+     * Delete a session from the connection pool.
+     * @param authority The authority of the session to delete.
+     * @param session The session to delete.
+     */
+    deleteSession(authority: string, session: ClientHttp2Session): void;
+    release(requestContext: RequestContext, session: ClientHttp2Session): void;
+    destroy(): void;
+    setMaxConcurrentStreams(maxConcurrentStreams: number): void;
+    setDisableConcurrentStreams(disableConcurrentStreams: boolean): void;
+    private getUrlString;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/node-http2-connection-pool.d.ts

@@ -0,0 +1,12 @@
+import type { ConnectionPool } from "@smithy/types";
+import type { ClientHttp2Session } from "http2";
+export declare class NodeHttp2ConnectionPool implements ConnectionPool<ClientHttp2Session> {
+    private sessions;
+    constructor(sessions?: ClientHttp2Session[]);
+    poll(): ClientHttp2Session | void;
+    offerLast(session: ClientHttp2Session): void;
+    contains(session: ClientHttp2Session): boolean;
+    remove(session: ClientHttp2Session): void;
+    [Symbol.iterator](): ArrayIterator<ClientHttp2Session>;
+    destroy(connection: ClientHttp2Session): void;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/node-http2-handler.d.ts

@@ -0,0 +1,63 @@
+import type { HttpHandler, HttpRequest } from "@smithy/protocol-http";
+import { HttpResponse } from "@smithy/protocol-http";
+import type { HttpHandlerOptions, Provider } from "@smithy/types";
+/**
+ * Represents the http2 options that can be passed to a node http2 client.
+ * @public
+ */
+export interface NodeHttp2HandlerOptions {
+    /**
+     * The maximum time in milliseconds that a stream may remain idle before it
+     * is closed.
+     */
+    requestTimeout?: number;
+    /**
+     * The maximum time in milliseconds that a session or socket may remain idle
+     * before it is closed.
+     * https://nodejs.org/docs/latest-v12.x/api/http2.html#http2_http2session_and_sockets
+     */
+    sessionTimeout?: number;
+    /**
+     * Disables processing concurrent streams on a ClientHttp2Session instance. When set
+     * to true, a new session instance is created for each request to a URL.
+     * **Default:** false.
+     * https://nodejs.org/api/http2.html#http2_class_clienthttp2session
+     */
+    disableConcurrentStreams?: boolean;
+    /**
+     * Maximum number of concurrent Http2Stream instances per ClientHttp2Session. Each session
+     * may have up to 2^31-1 Http2Stream instances over its lifetime.
+     * This value must be greater than or equal to 0.
+     * https://nodejs.org/api/http2.html#class-http2stream
+     */
+    maxConcurrentStreams?: number;
+}
+/**
+ * A request handler using the node:http2 package.
+ * @public
+ */
+export declare class NodeHttp2Handler implements HttpHandler<NodeHttp2HandlerOptions> {
+    private config?;
+    private configProvider;
+    readonly metadata: {
+        handlerProtocol: string;
+    };
+    private readonly connectionManager;
+    /**
+     * @returns the input if it is an HttpHandler of any class,
+     * or instantiates a new instance of this handler.
+     */
+    static create(instanceOrOptions?: HttpHandler<any> | NodeHttp2HandlerOptions | Provider<NodeHttp2HandlerOptions | void>): HttpHandler<any> | NodeHttp2Handler;
+    constructor(options?: NodeHttp2HandlerOptions | Provider<NodeHttp2HandlerOptions | void>);
+    destroy(): void;
+    handle(request: HttpRequest, { abortSignal, requestTimeout }?: HttpHandlerOptions): Promise<{
+        response: HttpResponse;
+    }>;
+    updateHttpClientConfig(key: keyof NodeHttp2HandlerOptions, value: NodeHttp2HandlerOptions[typeof key]): void;
+    httpHandlerConfigs(): NodeHttp2HandlerOptions;
+    /**
+     * Destroys a session.
+     * @param session - the session to destroy.
+     */
+    private destroySession;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/readable.mock.d.ts

@@ -0,0 +1,13 @@
+import type { ReadableOptions } from "stream";
+import { Readable } from "stream";
+export interface ReadFromBuffersOptions extends ReadableOptions {
+    buffers: Buffer[];
+    errorAfter?: number;
+}
+export declare class ReadFromBuffers extends Readable {
+    private buffersToRead;
+    private numBuffersRead;
+    private errorAfter;
+    constructor(options: ReadFromBuffersOptions);
+    _read(): boolean | undefined;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/server.mock.d.ts

@@ -0,0 +1,12 @@
+import type { HttpResponse } from "@smithy/types";
+import type { IncomingMessage, Server as HttpServer, ServerResponse } from "http";
+import type { Http2Server } from "http2";
+import type { Server as HttpsServer } from "https";
+export declare const createResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createResponseFunctionWithDelay: (httpResp: HttpResponse, delay: number) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createContinueResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createMockHttpsServer: () => HttpsServer;
+export declare const createMockHttpServer: () => HttpServer;
+export declare const createMockHttp2Server: () => Http2Server;
+export declare const createMirrorResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const getResponseBody: (response: HttpResponse) => Promise<string>;

backend/node_modules/@smithy/node-http-handler/dist-types/set-connection-timeout.d.ts

@@ -0,0 +1,2 @@
+import type { ClientRequest } from "http";
+export declare const setConnectionTimeout: (request: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/set-request-timeout.d.ts

@@ -0,0 +1,6 @@
+import type { Logger } from "@smithy/types";
+import type { ClientRequest } from "http";
+/**
+ * @internal
+ */
+export declare const setRequestTimeout: (req: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number, throwOnRequestTimeout?: boolean, logger?: Logger) => number;

backend/node_modules/@smithy/node-http-handler/dist-types/set-socket-keep-alive.d.ts

@@ -0,0 +1,6 @@
+import type { ClientRequest } from "http";
+export interface SocketKeepAliveOptions {
+    keepAlive: boolean;
+    keepAliveMsecs?: number;
+}
+export declare const setSocketKeepAlive: (request: ClientRequest, { keepAlive, keepAliveMsecs }: SocketKeepAliveOptions, deferTimeMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/set-socket-timeout.d.ts

@@ -0,0 +1,2 @@
+import type { ClientRequest } from "http";
+export declare const setSocketTimeout: (request: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/stream-collector/collector.d.ts

@@ -0,0 +1,5 @@
+import { Writable } from "stream";
+export declare class Collector extends Writable {
+    readonly bufferedBytes: Buffer[];
+    _write(chunk: Buffer, encoding: string, callback: (err?: Error) => void): void;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/stream-collector/index.d.ts

@@ -0,0 +1,6 @@
+import type { StreamCollector } from "@smithy/types";
+/**
+ * @internal
+ * Converts a stream to a byte array.
+ */
+export declare const streamCollector: StreamCollector;

backend/node_modules/@smithy/node-http-handler/dist-types/stream-collector/readable.mock.d.ts

@@ -0,0 +1,13 @@
+import type { ReadableOptions } from "stream";
+import { Readable } from "stream";
+export interface ReadFromBuffersOptions extends ReadableOptions {
+    buffers: Buffer[];
+    errorAfter?: number;
+}
+export declare class ReadFromBuffers extends Readable {
+    private buffersToRead;
+    private numBuffersRead;
+    private errorAfter;
+    constructor(options: ReadFromBuffersOptions);
+    _read(size: number): boolean | undefined;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/timing.d.ts

@@ -0,0 +1,8 @@
+/**
+ * @internal
+ * For test spies.
+ */
+export declare const timing: {
+    setTimeout: (cb: (...ignored: any[]) => void | unknown, ms?: number) => number;
+    clearTimeout: (timeoutId: string | number | undefined | unknown) => void;
+};

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/constants.d.ts

@@ -0,0 +1,5 @@
+/**
+ * Node.js system error codes that indicate timeout.
+ * @deprecated use NODEJS_TIMEOUT_ERROR_CODES from @smithy/service-error-classification/constants
+ */
+export declare const NODEJS_TIMEOUT_ERROR_CODES: string[];

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/get-transformed-headers.d.ts

@@ -0,0 +1,4 @@
+import { HeaderBag } from "@smithy/types";
+import { IncomingHttpHeaders } from "http2";
+declare const getTransformedHeaders: (headers: IncomingHttpHeaders) => HeaderBag;
+export { getTransformedHeaders };

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/index.d.ts

@@ -0,0 +1,3 @@
+export * from "./node-http-handler";
+export * from "./node-http2-handler";
+export * from "./stream-collector";

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/node-http-handler.d.ts

@@ -0,0 +1,46 @@
+import { HttpHandler, HttpRequest } from "@smithy/protocol-http";
+import { HttpResponse } from "@smithy/protocol-http";
+import { HttpHandlerOptions, Logger, NodeHttpHandlerOptions, Provider } from "@smithy/types";
+import { Agent as hAgent } from "http";
+import { Agent as hsAgent } from "https";
+export { NodeHttpHandlerOptions };
+/**
+ * @public
+ * A default of 0 means no timeout.
+ */
+export declare const DEFAULT_REQUEST_TIMEOUT = 0;
+/**
+ * @public
+ * A request handler that uses the Node.js http and https modules.
+ */
+export declare class NodeHttpHandler implements HttpHandler<NodeHttpHandlerOptions> {
+    private config?;
+    private configProvider;
+    private socketWarningTimestamp;
+    private externalAgent;
+    readonly metadata: {
+        handlerProtocol: string;
+    };
+    /**
+     * @returns the input if it is an HttpHandler of any class,
+     * or instantiates a new instance of this handler.
+     */
+    static create(instanceOrOptions?: HttpHandler<any> | NodeHttpHandlerOptions | Provider<NodeHttpHandlerOptions | void>): NodeHttpHandler | HttpHandler<any>;
+    /**
+     * @internal
+     *
+     * @param agent - http(s) agent in use by the NodeHttpHandler instance.
+     * @param socketWarningTimestamp - last socket usage check timestamp.
+     * @param logger - channel for the warning.
+     * @returns timestamp of last emitted warning.
+     */
+    static checkSocketUsage(agent: hAgent | hsAgent, socketWarningTimestamp: number, logger?: Logger): number;
+    constructor(options?: NodeHttpHandlerOptions | Provider<NodeHttpHandlerOptions | void>);
+    private resolveDefaultConfig;
+    destroy(): void;
+    handle(request: HttpRequest, { abortSignal, requestTimeout }?: HttpHandlerOptions): Promise<{
+        response: HttpResponse;
+    }>;
+    updateHttpClientConfig(key: keyof NodeHttpHandlerOptions, value: NodeHttpHandlerOptions[typeof key]): void;
+    httpHandlerConfigs(): NodeHttpHandlerOptions;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/node-http2-connection-manager.d.ts

@@ -0,0 +1,24 @@
+import { RequestContext } from "@smithy/types";
+import { ConnectConfiguration } from "@smithy/types";
+import { ConnectionManager, ConnectionManagerConfiguration } from "@smithy/types";
+import { ClientHttp2Session } from "http2";
+/**
+ * @public
+ */
+export declare class NodeHttp2ConnectionManager implements ConnectionManager<ClientHttp2Session> {
+    constructor(config: ConnectionManagerConfiguration);
+    private config;
+    private readonly sessionCache;
+    lease(requestContext: RequestContext, connectionConfiguration: ConnectConfiguration): ClientHttp2Session;
+    /**
+     * Delete a session from the connection pool.
+     * @param authority The authority of the session to delete.
+     * @param session The session to delete.
+     */
+    deleteSession(authority: string, session: ClientHttp2Session): void;
+    release(requestContext: RequestContext, session: ClientHttp2Session): void;
+    destroy(): void;
+    setMaxConcurrentStreams(maxConcurrentStreams: number): void;
+    setDisableConcurrentStreams(disableConcurrentStreams: boolean): void;
+    private getUrlString;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/node-http2-connection-pool.d.ts

@@ -0,0 +1,12 @@
+import { ConnectionPool } from "@smithy/types";
+import { ClientHttp2Session } from "http2";
+export declare class NodeHttp2ConnectionPool implements ConnectionPool<ClientHttp2Session> {
+    private sessions;
+    constructor(sessions?: ClientHttp2Session[]);
+    poll(): ClientHttp2Session | void;
+    offerLast(session: ClientHttp2Session): void;
+    contains(session: ClientHttp2Session): boolean;
+    remove(session: ClientHttp2Session): void;
+    [Symbol.iterator](): ArrayIterator<ClientHttp2Session>;
+    destroy(connection: ClientHttp2Session): void;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/node-http2-handler.d.ts

@@ -0,0 +1,63 @@
+import { HttpHandler, HttpRequest } from "@smithy/protocol-http";
+import { HttpResponse } from "@smithy/protocol-http";
+import { HttpHandlerOptions, Provider } from "@smithy/types";
+/**
+ * Represents the http2 options that can be passed to a node http2 client.
+ * @public
+ */
+export interface NodeHttp2HandlerOptions {
+    /**
+     * The maximum time in milliseconds that a stream may remain idle before it
+     * is closed.
+     */
+    requestTimeout?: number;
+    /**
+     * The maximum time in milliseconds that a session or socket may remain idle
+     * before it is closed.
+     * https://nodejs.org/docs/latest-v12.x/api/http2.html#http2_http2session_and_sockets
+     */
+    sessionTimeout?: number;
+    /**
+     * Disables processing concurrent streams on a ClientHttp2Session instance. When set
+     * to true, a new session instance is created for each request to a URL.
+     * **Default:** false.
+     * https://nodejs.org/api/http2.html#http2_class_clienthttp2session
+     */
+    disableConcurrentStreams?: boolean;
+    /**
+     * Maximum number of concurrent Http2Stream instances per ClientHttp2Session. Each session
+     * may have up to 2^31-1 Http2Stream instances over its lifetime.
+     * This value must be greater than or equal to 0.
+     * https://nodejs.org/api/http2.html#class-http2stream
+     */
+    maxConcurrentStreams?: number;
+}
+/**
+ * A request handler using the node:http2 package.
+ * @public
+ */
+export declare class NodeHttp2Handler implements HttpHandler<NodeHttp2HandlerOptions> {
+    private config?;
+    private configProvider;
+    readonly metadata: {
+        handlerProtocol: string;
+    };
+    private readonly connectionManager;
+    /**
+     * @returns the input if it is an HttpHandler of any class,
+     * or instantiates a new instance of this handler.
+     */
+    static create(instanceOrOptions?: HttpHandler<any> | NodeHttp2HandlerOptions | Provider<NodeHttp2HandlerOptions | void>): HttpHandler<any> | NodeHttp2Handler;
+    constructor(options?: NodeHttp2HandlerOptions | Provider<NodeHttp2HandlerOptions | void>);
+    destroy(): void;
+    handle(request: HttpRequest, { abortSignal, requestTimeout }?: HttpHandlerOptions): Promise<{
+        response: HttpResponse;
+    }>;
+    updateHttpClientConfig(key: keyof NodeHttp2HandlerOptions, value: NodeHttp2HandlerOptions[typeof key]): void;
+    httpHandlerConfigs(): NodeHttp2HandlerOptions;
+    /**
+     * Destroys a session.
+     * @param session - the session to destroy.
+     */
+    private destroySession;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/readable.mock.d.ts

@@ -0,0 +1,13 @@
+import { ReadableOptions } from "stream";
+import { Readable } from "stream";
+export interface ReadFromBuffersOptions extends ReadableOptions {
+    buffers: Buffer[];
+    errorAfter?: number;
+}
+export declare class ReadFromBuffers extends Readable {
+    private buffersToRead;
+    private numBuffersRead;
+    private errorAfter;
+    constructor(options: ReadFromBuffersOptions);
+    _read(): boolean | undefined;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/server.mock.d.ts

@@ -0,0 +1,12 @@
+import { HttpResponse } from "@smithy/types";
+import { IncomingMessage, Server as HttpServer, ServerResponse } from "http";
+import { Http2Server } from "http2";
+import { Server as HttpsServer } from "https";
+export declare const createResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createResponseFunctionWithDelay: (httpResp: HttpResponse, delay: number) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createContinueResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const createMockHttpsServer: () => HttpsServer;
+export declare const createMockHttpServer: () => HttpServer;
+export declare const createMockHttp2Server: () => Http2Server;
+export declare const createMirrorResponseFunction: (httpResp: HttpResponse) => (request: IncomingMessage, response: ServerResponse) => void;
+export declare const getResponseBody: (response: HttpResponse) => Promise<string>;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/set-connection-timeout.d.ts

@@ -0,0 +1,2 @@
+import { ClientRequest } from "http";
+export declare const setConnectionTimeout: (request: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/set-request-timeout.d.ts

@@ -0,0 +1,6 @@
+import { Logger } from "@smithy/types";
+import { ClientRequest } from "http";
+/**
+ * @internal
+ */
+export declare const setRequestTimeout: (req: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number, throwOnRequestTimeout?: boolean, logger?: Logger) => number;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/set-socket-keep-alive.d.ts

@@ -0,0 +1,6 @@
+import { ClientRequest } from "http";
+export interface SocketKeepAliveOptions {
+    keepAlive: boolean;
+    keepAliveMsecs?: number;
+}
+export declare const setSocketKeepAlive: (request: ClientRequest, { keepAlive, keepAliveMsecs }: SocketKeepAliveOptions, deferTimeMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/set-socket-timeout.d.ts

@@ -0,0 +1,2 @@
+import { ClientRequest } from "http";
+export declare const setSocketTimeout: (request: ClientRequest, reject: (err: Error) => void, timeoutInMs?: number) => NodeJS.Timeout | number;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/stream-collector/collector.d.ts

@@ -0,0 +1,5 @@
+import { Writable } from "stream";
+export declare class Collector extends Writable {
+    readonly bufferedBytes: Buffer[];
+    _write(chunk: Buffer, encoding: string, callback: (err?: Error) => void): void;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/stream-collector/index.d.ts

@@ -0,0 +1,6 @@
+import { StreamCollector } from "@smithy/types";
+/**
+ * @internal
+ * Converts a stream to a byte array.
+ */
+export declare const streamCollector: StreamCollector;

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/stream-collector/readable.mock.d.ts

@@ -0,0 +1,13 @@
+import { ReadableOptions } from "stream";
+import { Readable } from "stream";
+export interface ReadFromBuffersOptions extends ReadableOptions {
+    buffers: Buffer[];
+    errorAfter?: number;
+}
+export declare class ReadFromBuffers extends Readable {
+    private buffersToRead;
+    private numBuffersRead;
+    private errorAfter;
+    constructor(options: ReadFromBuffersOptions);
+    _read(size: number): boolean | undefined;
+}

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/timing.d.ts

@@ -0,0 +1,8 @@
+/**
+ * @internal
+ * For test spies.
+ */
+export declare const timing: {
+    setTimeout: (cb: (...ignored: any[]) => void | unknown, ms?: number) => number;
+    clearTimeout: (timeoutId: string | number | undefined | unknown) => void;
+};

backend/node_modules/@smithy/node-http-handler/dist-types/ts3.4/write-request-body.d.ts

@@ -0,0 +1,12 @@
+import { HttpRequest } from "@smithy/types";
+import { ClientRequest } from "http";
+import { ClientHttp2Stream } from "http2";
+/**
+ * This resolves when writeBody has been called.
+ *
+ * @param httpRequest - opened Node.js request.
+ * @param request - container with the request body.
+ * @param maxContinueTimeoutMs - time to wait for the continue event.
+ * @param externalAgent - whether agent is owned by caller code.
+ */
+export declare function writeRequestBody(httpRequest: ClientRequest | ClientHttp2Stream, request: HttpRequest, maxContinueTimeoutMs?: number, externalAgent?: boolean): Promise<void>;

backend/node_modules/@smithy/node-http-handler/dist-types/write-request-body.d.ts

@@ -0,0 +1,12 @@
+import type { HttpRequest } from "@smithy/types";
+import type { ClientRequest } from "http";
+import type { ClientHttp2Stream } from "http2";
+/**
+ * This resolves when writeBody has been called.
+ *
+ * @param httpRequest - opened Node.js request.
+ * @param request - container with the request body.
+ * @param maxContinueTimeoutMs - time to wait for the continue event.
+ * @param externalAgent - whether agent is owned by caller code.
+ */
+export declare function writeRequestBody(httpRequest: ClientRequest | ClientHttp2Stream, request: HttpRequest, maxContinueTimeoutMs?: number, externalAgent?: boolean): Promise<void>;

backend/node_modules/@smithy/node-http-handler/package.json

@@ -0,0 +1,68 @@
+{
+  "name": "@smithy/node-http-handler",
+  "version": "4.4.8",
+  "description": "Provides a way to make requests",
+  "scripts": {
+    "build": "concurrently 'yarn:build:cjs' 'yarn:build:es' 'yarn:build:types && yarn build:types:downlevel'",
+    "build:cjs": "node ../../scripts/inline node-http-handler",
+    "build:es": "yarn g:tsc -p tsconfig.es.json",
+    "build:types": "yarn g:tsc -p tsconfig.types.json",
+    "build:types:downlevel": "rimraf dist-types/ts3.4 && downlevel-dts dist-types dist-types/ts3.4",
+    "stage-release": "rimraf ./.release && yarn pack && mkdir ./.release && tar zxvf ./package.tgz --directory ./.release && rm ./package.tgz",
+    "clean": "rimraf ./dist-* && rimraf *.tsbuildinfo || exit 0",
+    "lint": "eslint -c ../../.eslintrc.js \"src/**/*.ts\"",
+    "format": "prettier --config ../../prettier.config.js --ignore-path ../../.prettierignore --write \"**/*.{ts,md,json}\"",
+    "extract:docs": "api-extractor run --local",
+    "test": "yarn g:vitest run",
+    "test:watch": "yarn g:vitest watch"
+  },
+  "author": {
+    "name": "AWS SDK for JavaScript Team",
+    "email": "",
+    "url": "https://aws.amazon.com/javascript/"
+  },
+  "license": "Apache-2.0",
+  "sideEffects": false,
+  "main": "./dist-cjs/index.js",
+  "module": "./dist-es/index.js",
+  "types": "./dist-types/index.d.ts",
+  "dependencies": {
+    "@smithy/abort-controller": "^4.2.8",
+    "@smithy/protocol-http": "^5.3.8",
+    "@smithy/querystring-builder": "^4.2.8",
+    "@smithy/types": "^4.12.0",
+    "tslib": "^2.6.2"
+  },
+  "devDependencies": {
+    "@types/node": "^18.11.9",
+    "concurrently": "7.0.0",
+    "downlevel-dts": "0.10.1",
+    "rimraf": "5.0.10",
+    "typedoc": "0.23.23"
+  },
+  "engines": {
+    "node": ">=18.0.0"
+  },
+  "typesVersions": {
+    "<4.0": {
+      "dist-types/*": [
+        "dist-types/ts3.4/*"
+      ]
+    }
+  },
+  "files": [
+    "dist-*/**"
+  ],
+  "homepage": "https://github.com/smithy-lang/smithy-typescript/tree/main/packages/node-http-handler",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/smithy-lang/smithy-typescript.git",
+    "directory": "packages/node-http-handler"
+  },
+  "typedoc": {
+    "entryPoint": "src/index.ts"
+  },
+  "publishConfig": {
+    "directory": ".release/package"
+  }
+}