Backport of c2d78cd

Signed-off-by: Matteo Collina <hello@matteocollina.com>

Author: mcollina

lib/fetch/body.js

@@ -22,6 +22,14 @@ const { isUint8Array, isArrayBuffer } = require('util/types')
 const { File: UndiciFile } = require('./file')
 const { parseMIMEType, serializeAMimeType } = require('./dataURL')
 
+let random
+try {
+ const crypto = require('node:crypto')
+ random = (max) => crypto.randomInt(0, max)
+} catch {
+ random = (max) => Math.floor(Math.random(max))
+}
+
 let ReadableStream = globalThis.ReadableStream
 
 /** @type {globalThis['File']} */
@@ -107,7 +115,7 @@ function extractBody (object, keepalive = false) {
  // Set source to a copy of the bytes held by object.
  source = new Uint8Array(object.buffer.slice(object.byteOffset, object.byteOffset + object.byteLength))
  } else if (util.isFormDataLike(object)) {
- const boundary = `----formdata-undici-0${`${Math.floor(Math.random() * 1e11)}`.padStart(11, '0')}`
+ const boundary = `----formdata-undici-0${`${random(1e11)}`.padStart(11, '0')}`
  const prefix = `--${boundary}\r\nContent-Disposition: form-data`
 
  /*! formdata-polyfill. MIT License. Jimmy Wärting <https://jimmy.warting.se/opensource> */