58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
// src/middleware/body-limit/index.ts
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import { HTTPException } from "../../http-exception.js";
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var ERROR_MESSAGE = "Payload Too Large";
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var BodyLimitError = class extends Error {
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constructor(message) {
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super(message);
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this.name = "BodyLimitError";
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}
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};
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var bodyLimit = (options) => {
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const onError = options.onError || (() => {
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const res = new Response(ERROR_MESSAGE, {
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status: 413
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});
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throw new HTTPException(413, { res });
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});
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const maxSize = options.maxSize;
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return async function bodyLimit2(c, next) {
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if (!c.req.raw.body) {
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return next();
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}
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if (c.req.raw.headers.has("content-length")) {
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const contentLength = parseInt(c.req.raw.headers.get("content-length") || "0", 10);
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return contentLength > maxSize ? onError(c) : next();
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}
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let size = 0;
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const rawReader = c.req.raw.body.getReader();
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const reader = new ReadableStream({
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async start(controller) {
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try {
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for (; ; ) {
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const { done, value } = await rawReader.read();
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if (done) {
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break;
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}
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size += value.length;
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if (size > maxSize) {
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controller.error(new BodyLimitError(ERROR_MESSAGE));
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break;
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}
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controller.enqueue(value);
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}
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} finally {
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controller.close();
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}
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}
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});
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c.req.raw = new Request(c.req.raw, { body: reader });
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await next();
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if (c.error instanceof BodyLimitError) {
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c.res = await onError(c);
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}
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};
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};
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export {
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bodyLimit
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};
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