Updated the files.

my-app/node_modules/undici/lib/api/readable.js

@@ -0,0 +1,339 @@
+// Ported from https://github.com/nodejs/undici/pull/907
+
+'use strict'
+
+const assert = require('assert')
+const { Readable } = require('stream')
+const { RequestAbortedError, NotSupportedError, InvalidArgumentError, AbortError } = require('../core/errors')
+const util = require('../core/util')
+const { ReadableStreamFrom } = require('../core/util')
+
+const kConsume = Symbol('kConsume')
+const kReading = Symbol('kReading')
+const kBody = Symbol('kBody')
+const kAbort = Symbol('abort')
+const kContentType = Symbol('kContentType')
+
+const noop = () => {}
+
+module.exports = class BodyReadable extends Readable {
+  constructor ({
+    resume,
+    abort,
+    contentType = '',
+    highWaterMark = 64 * 1024 // Same as nodejs fs streams.
+  }) {
+    super({
+      autoDestroy: true,
+      read: resume,
+      highWaterMark
+    })
+
+    this._readableState.dataEmitted = false
+
+    this[kAbort] = abort
+    this[kConsume] = null
+    this[kBody] = null
+    this[kContentType] = contentType
+
+    // Is stream being consumed through Readable API?
+    // This is an optimization so that we avoid checking
+    // for 'data' and 'readable' listeners in the hot path
+    // inside push().
+    this[kReading] = false
+  }
+
+  destroy (err) {
+    if (!err && !this._readableState.endEmitted) {
+      err = new RequestAbortedError()
+    }
+
+    if (err) {
+      this[kAbort]()
+    }
+
+    return super.destroy(err)
+  }
+
+  _destroy (err, callback) {
+    // Workaround for Node "bug". If the stream is destroyed in same
+    // tick as it is created, then a user who is waiting for a
+    // promise (i.e micro tick) for installing a 'error' listener will
+    // never get a chance and will always encounter an unhandled exception.
+    // - tick => process.nextTick(fn)
+    // - micro tick => queueMicrotask(fn)
+    queueMicrotask(() => {
+      callback(err)
+    })
+  }
+
+  on (ev, ...args) {
+    if (ev === 'data' || ev === 'readable') {
+      this[kReading] = true
+    }
+    return super.on(ev, ...args)
+  }
+
+  addListener (ev, ...args) {
+    return this.on(ev, ...args)
+  }
+
+  off (ev, ...args) {
+    const ret = super.off(ev, ...args)
+    if (ev === 'data' || ev === 'readable') {
+      this[kReading] = (
+        this.listenerCount('data') > 0 ||
+        this.listenerCount('readable') > 0
+      )
+    }
+    return ret
+  }
+
+  removeListener (ev, ...args) {
+    return this.off(ev, ...args)
+  }
+
+  push (chunk) {
+    if (this[kConsume] && chunk !== null && this.readableLength === 0) {
+      consumePush(this[kConsume], chunk)
+      return this[kReading] ? super.push(chunk) : true
+    }
+    return super.push(chunk)
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-text
+  async text () {
+    return consume(this, 'text')
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-json
+  async json () {
+    return consume(this, 'json')
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-blob
+  async blob () {
+    return consume(this, 'blob')
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-arraybuffer
+  async arrayBuffer () {
+    return consume(this, 'arrayBuffer')
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-formdata
+  async formData () {
+    // TODO: Implement.
+    throw new NotSupportedError()
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-bodyused
+  get bodyUsed () {
+    return util.isDisturbed(this)
+  }
+
+  // https://fetch.spec.whatwg.org/#dom-body-body
+  get body () {
+    if (!this[kBody]) {
+      this[kBody] = ReadableStreamFrom(this)
+      if (this[kConsume]) {
+        // TODO: Is this the best way to force a lock?
+        this[kBody].getReader() // Ensure stream is locked.
+        assert(this[kBody].locked)
+      }
+    }
+    return this[kBody]
+  }
+
+  async dump (opts) {
+    let limit = Number.isFinite(opts?.limit) ? opts.limit : 262144
+    const signal = opts?.signal
+
+    if (signal != null && (typeof signal !== 'object' || !('aborted' in signal))) {
+      throw new InvalidArgumentError('signal must be an AbortSignal')
+    }
+
+    signal?.throwIfAborted()
+
+    if (this._readableState.closeEmitted) {
+      return null
+    }
+
+    return await new Promise((resolve, reject) => {
+      const onAbort = () => {
+        this.destroy(signal.reason ?? new AbortError())
+      }
+      signal?.addEventListener('abort', onAbort)
+
+      this
+        .on('close', function () {
+          signal?.removeEventListener('abort', onAbort)
+          if (signal?.aborted) {
+            reject(signal.reason ?? new AbortError())
+          } else {
+            resolve(null)
+          }
+        })
+        .on('error', noop)
+        .on('data', function (chunk) {
+          limit -= chunk.length
+          if (limit <= 0) {
+            this.destroy()
+          }
+        })
+        .resume()
+    })
+  }
+}
+
+// https://streams.spec.whatwg.org/#readablestream-locked
+function isLocked (self) {
+  // Consume is an implicit lock.
+  return (self[kBody] && self[kBody].locked === true) || self[kConsume]
+}
+
+// https://fetch.spec.whatwg.org/#body-unusable
+function isUnusable (self) {
+  return util.isDisturbed(self) || isLocked(self)
+}
+
+async function consume (stream, type) {
+  assert(!stream[kConsume])
+
+  return new Promise((resolve, reject) => {
+    if (isUnusable(stream)) {
+      const rState = stream._readableState
+      if (rState.destroyed && rState.closeEmitted === false) {
+        stream
+          .on('error', err => {
+            reject(err)
+          })
+          .on('close', () => {
+            reject(new TypeError('unusable'))
+          })
+      } else {
+        reject(rState.errored ?? new TypeError('unusable'))
+      }
+    } else {
+      stream[kConsume] = {
+        type,
+        stream,
+        resolve,
+        reject,
+        length: 0,
+        body: []
+      }
+
+      stream
+        .on('error', function (err) {
+          consumeFinish(this[kConsume], err)
+        })
+        .on('close', function () {
+          if (this[kConsume].body !== null) {
+            consumeFinish(this[kConsume], new RequestAbortedError())
+          }
+        })
+
+      queueMicrotask(() => consumeStart(stream[kConsume]))
+    }
+  })
+}
+
+function consumeStart (consume) {
+  if (consume.body === null) {
+    return
+  }
+
+  const { _readableState: state } = consume.stream
+
+  for (const chunk of state.buffer) {
+    consumePush(consume, chunk)
+  }
+
+  if (state.endEmitted) {
+    consumeEnd(this[kConsume])
+  } else {
+    consume.stream.on('end', function () {
+      consumeEnd(this[kConsume])
+    })
+  }
+
+  consume.stream.resume()
+
+  while (consume.stream.read() != null) {
+    // Loop
+  }
+}
+
+/**
+ * @param {Buffer[]} chunks
+ * @param {number} length
+ */
+function chunksDecode (chunks, length) {
+  if (chunks.length === 0 || length === 0) {
+    return ''
+  }
+  const buffer = chunks.length === 1 ? chunks[0] : Buffer.concat(chunks, length)
+
+  const start =
+   buffer.length >= 3 &&
+   // Skip BOM.
+      buffer[0] === 0xef &&
+      buffer[1] === 0xbb &&
+      buffer[2] === 0xbf
+     ? 3
+     : 0
+  return buffer.utf8Slice(start, buffer.length - start)
+}
+
+function consumeEnd (consume) {
+  const { type, body, resolve, stream, length } = consume
+
+  try {
+    if (type === 'text') {
+      resolve(chunksDecode(body, length))
+    } else if (type === 'json') {
+      resolve(JSON.parse(chunksDecode(body, length)))
+    } else if (type === 'arrayBuffer') {
+      const dst = new Uint8Array(length)
+
+      let pos = 0
+      for (const buf of body) {
+        dst.set(buf, pos)
+        pos += buf.byteLength
+      }
+
+      resolve(dst.buffer)
+    } else if (type === 'blob') {
+      resolve(new Blob(body, { type: stream[kContentType] }))
+    }
+
+    consumeFinish(consume)
+  } catch (err) {
+    stream.destroy(err)
+  }
+}
+
+function consumePush (consume, chunk) {
+  consume.length += chunk.length
+  consume.body.push(chunk)
+}
+
+function consumeFinish (consume, err) {
+  if (consume.body === null) {
+    return
+  }
+
+  if (err) {
+    consume.reject(err)
+  } else {
+    consume.resolve()
+  }
+
+  consume.type = null
+  consume.stream = null
+  consume.resolve = null
+  consume.reject = null
+  consume.length = 0
+  consume.body = null
+}