Backend half

SerpentRace_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 = 6000;
+export async function writeRequestBody(httpRequest, request, maxContinueTimeoutMs = MIN_WAIT_TIME) {
+    const headers = request.headers ?? {};
+    const expect = headers["Expect"] || headers["expect"];
+    let timeoutId = -1;
+    let sendBody = true;
+    if (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();
+}