Initial

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

@@ -0,0 +1,185 @@
+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 { setSocketKeepAlive } from "./set-socket-keep-alive";
+import { setSocketTimeout } from "./set-socket-timeout";
+import { writeRequestBody } from "./write-request-body";
+export const DEFAULT_REQUEST_TIMEOUT = 0;
+export class NodeHttpHandler {
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new NodeHttpHandler(instanceOrOptions);
+    }
+    static checkSocketUsage(agent, socketWarningTimestamp) {
+        const { sockets, requests, maxSockets } = agent;
+        if (typeof maxSockets !== "number" || maxSockets === Infinity) {
+            return socketWarningTimestamp;
+        }
+        const interval = 15000;
+        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) {
+                    console.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.socketWarningTimestamp = 0;
+        this.metadata = { handlerProtocol: "http/1.1" };
+        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, httpAgent, httpsAgent } = options || {};
+        const keepAlive = true;
+        const maxSockets = 50;
+        return {
+            connectionTimeout,
+            requestTimeout: requestTimeout ?? socketTimeout,
+            httpAgent: (() => {
+                if (httpAgent instanceof hAgent || typeof httpAgent?.destroy === "function") {
+                    return httpAgent;
+                }
+                return new hAgent({ keepAlive, maxSockets, ...httpAgent });
+            })(),
+            httpsAgent: (() => {
+                if (httpsAgent instanceof hsAgent || typeof httpsAgent?.destroy === "function") {
+                    return httpsAgent;
+                }
+                return new hsAgent({ keepAlive, maxSockets, ...httpsAgent });
+            })(),
+        };
+    }
+    destroy() {
+        this.config?.httpAgent?.destroy();
+        this.config?.httpsAgent?.destroy();
+    }
+    async handle(request, { abortSignal } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+        }
+        let socketCheckTimeoutId;
+        return new Promise((_resolve, _reject) => {
+            let writeRequestBodyPromise = undefined;
+            const resolve = async (arg) => {
+                await writeRequestBodyPromise;
+                clearTimeout(socketCheckTimeoutId);
+                _resolve(arg);
+            };
+            const reject = async (arg) => {
+                await writeRequestBodyPromise;
+                _reject(arg);
+            };
+            if (!this.config) {
+                throw new Error("Node HTTP request handler config is not resolved");
+            }
+            if (abortSignal?.aborted) {
+                const abortError = new Error("Request aborted");
+                abortError.name = "AbortError";
+                reject(abortError);
+                return;
+            }
+            const isSSL = request.protocol === "https:";
+            const agent = isSSL ? this.config.httpsAgent : this.config.httpAgent;
+            socketCheckTimeoutId = setTimeout(() => {
+                this.socketWarningTimestamp = NodeHttpHandler.checkSocketUsage(agent, this.socketWarningTimestamp);
+            }, this.config.socketAcquisitionWarningTimeout ??
+                (this.config.requestTimeout ?? 2000) + (this.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}`;
+            }
+            const nodeHttpsOptions = {
+                headers: request.headers,
+                host: request.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);
+                }
+            });
+            setConnectionTimeout(req, reject, this.config.connectionTimeout);
+            setSocketTimeout(req, reject, this.config.requestTimeout);
+            if (abortSignal) {
+                abortSignal.onabort = () => {
+                    req.abort();
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    reject(abortError);
+                };
+            }
+            const httpAgent = nodeHttpsOptions.agent;
+            if (typeof httpAgent === "object" && "keepAlive" in httpAgent) {
+                setSocketKeepAlive(req, {
+                    keepAlive: httpAgent.keepAlive,
+                    keepAliveMsecs: httpAgent.keepAliveMsecs,
+                });
+            }
+            writeRequestBodyPromise = writeRequestBody(req, request, this.config.requestTimeout).catch(_reject);
+        });
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            return {
+                ...config,
+                [key]: value,
+            };
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+}