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node_modules/minipass-fetch/lib/abort-error.js

@@ -0,0 +1,17 @@
+'use strict'
+class AbortError extends Error {
+  constructor (message) {
+    super(message)
+    this.code = 'FETCH_ABORTED'
+    this.type = 'aborted'
+    Error.captureStackTrace(this, this.constructor)
+  }
+
+  get name () {
+    return 'AbortError'
+  }
+
+  // don't allow name to be overridden, but don't throw either
+  set name (s) {}
+}
+module.exports = AbortError

node_modules/minipass-fetch/lib/blob.js

@@ -0,0 +1,97 @@
+'use strict'
+const Minipass = require('minipass')
+const TYPE = Symbol('type')
+const BUFFER = Symbol('buffer')
+
+class Blob {
+  constructor (blobParts, options) {
+    this[TYPE] = ''
+
+    const buffers = []
+    let size = 0
+
+    if (blobParts) {
+      const a = blobParts
+      const length = Number(a.length)
+      for (let i = 0; i < length; i++) {
+        const element = a[i]
+        const buffer = element instanceof Buffer ? element
+          : ArrayBuffer.isView(element)
+            ? Buffer.from(element.buffer, element.byteOffset, element.byteLength)
+            : element instanceof ArrayBuffer ? Buffer.from(element)
+            : element instanceof Blob ? element[BUFFER]
+            : typeof element === 'string' ? Buffer.from(element)
+            : Buffer.from(String(element))
+        size += buffer.length
+        buffers.push(buffer)
+      }
+    }
+
+    this[BUFFER] = Buffer.concat(buffers, size)
+
+    const type = options && options.type !== undefined
+      && String(options.type).toLowerCase()
+    if (type && !/[^\u0020-\u007E]/.test(type)) {
+      this[TYPE] = type
+    }
+  }
+
+  get size () {
+    return this[BUFFER].length
+  }
+
+  get type () {
+    return this[TYPE]
+  }
+
+  text () {
+    return Promise.resolve(this[BUFFER].toString())
+  }
+
+  arrayBuffer () {
+    const buf = this[BUFFER]
+    const off = buf.byteOffset
+    const len = buf.byteLength
+    const ab = buf.buffer.slice(off, off + len)
+    return Promise.resolve(ab)
+  }
+
+  stream () {
+    return new Minipass().end(this[BUFFER])
+  }
+
+  slice (start, end, type) {
+    const size = this.size
+    const relativeStart = start === undefined ? 0
+      : start < 0 ? Math.max(size + start, 0)
+      : Math.min(start, size)
+    const relativeEnd = end === undefined ? size
+      : end < 0 ? Math.max(size + end, 0)
+      : Math.min(end, size)
+    const span = Math.max(relativeEnd - relativeStart, 0)
+
+    const buffer = this[BUFFER]
+    const slicedBuffer = buffer.slice(
+      relativeStart,
+      relativeStart + span
+    )
+    const blob = new Blob([], { type })
+    blob[BUFFER] = slicedBuffer
+    return blob
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Blob'
+  }
+
+  static get BUFFER () {
+    return BUFFER
+  }
+}
+
+Object.defineProperties(Blob.prototype, {
+  size: { enumerable: true },
+  type: { enumerable: true },
+})
+
+module.exports = Blob

node_modules/minipass-fetch/lib/body.js

@@ -0,0 +1,350 @@
+'use strict'
+const Minipass = require('minipass')
+const MinipassSized = require('minipass-sized')
+
+const Blob = require('./blob.js')
+const { BUFFER } = Blob
+const FetchError = require('./fetch-error.js')
+
+// optional dependency on 'encoding'
+let convert
+try {
+  convert = require('encoding').convert
+} catch (e) {
+  // defer error until textConverted is called
+}
+
+const INTERNALS = Symbol('Body internals')
+const CONSUME_BODY = Symbol('consumeBody')
+
+class Body {
+  constructor (bodyArg, options = {}) {
+    const { size = 0, timeout = 0 } = options
+    const body = bodyArg === undefined || bodyArg === null ? null
+      : isURLSearchParams(bodyArg) ? Buffer.from(bodyArg.toString())
+      : isBlob(bodyArg) ? bodyArg
+      : Buffer.isBuffer(bodyArg) ? bodyArg
+      : Object.prototype.toString.call(bodyArg) === '[object ArrayBuffer]'
+        ? Buffer.from(bodyArg)
+        : ArrayBuffer.isView(bodyArg)
+          ? Buffer.from(bodyArg.buffer, bodyArg.byteOffset, bodyArg.byteLength)
+          : Minipass.isStream(bodyArg) ? bodyArg
+          : Buffer.from(String(bodyArg))
+
+    this[INTERNALS] = {
+      body,
+      disturbed: false,
+      error: null,
+    }
+
+    this.size = size
+    this.timeout = timeout
+
+    if (Minipass.isStream(body)) {
+      body.on('error', er => {
+        const error = er.name === 'AbortError' ? er
+          : new FetchError(`Invalid response while trying to fetch ${
+            this.url}: ${er.message}`, 'system', er)
+        this[INTERNALS].error = error
+      })
+    }
+  }
+
+  get body () {
+    return this[INTERNALS].body
+  }
+
+  get bodyUsed () {
+    return this[INTERNALS].disturbed
+  }
+
+  arrayBuffer () {
+    return this[CONSUME_BODY]().then(buf =>
+      buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength))
+  }
+
+  blob () {
+    const ct = this.headers && this.headers.get('content-type') || ''
+    return this[CONSUME_BODY]().then(buf => Object.assign(
+      new Blob([], { type: ct.toLowerCase() }),
+      { [BUFFER]: buf }
+    ))
+  }
+
+  async json () {
+    const buf = await this[CONSUME_BODY]()
+    try {
+      return JSON.parse(buf.toString())
+    } catch (er) {
+      throw new FetchError(
+        `invalid json response body at ${this.url} reason: ${er.message}`,
+        'invalid-json'
+      )
+    }
+  }
+
+  text () {
+    return this[CONSUME_BODY]().then(buf => buf.toString())
+  }
+
+  buffer () {
+    return this[CONSUME_BODY]()
+  }
+
+  textConverted () {
+    return this[CONSUME_BODY]().then(buf => convertBody(buf, this.headers))
+  }
+
+  [CONSUME_BODY] () {
+    if (this[INTERNALS].disturbed) {
+      return Promise.reject(new TypeError(`body used already for: ${
+        this.url}`))
+    }
+
+    this[INTERNALS].disturbed = true
+
+    if (this[INTERNALS].error) {
+      return Promise.reject(this[INTERNALS].error)
+    }
+
+    // body is null
+    if (this.body === null) {
+      return Promise.resolve(Buffer.alloc(0))
+    }
+
+    if (Buffer.isBuffer(this.body)) {
+      return Promise.resolve(this.body)
+    }
+
+    const upstream = isBlob(this.body) ? this.body.stream() : this.body
+
+    /* istanbul ignore if: should never happen */
+    if (!Minipass.isStream(upstream)) {
+      return Promise.resolve(Buffer.alloc(0))
+    }
+
+    const stream = this.size && upstream instanceof MinipassSized ? upstream
+      : !this.size && upstream instanceof Minipass &&
+        !(upstream instanceof MinipassSized) ? upstream
+      : this.size ? new MinipassSized({ size: this.size })
+      : new Minipass()
+
+    // allow timeout on slow response body, but only if the stream is still writable. this
+    // makes the timeout center on the socket stream from lib/index.js rather than the
+    // intermediary minipass stream we create to receive the data
+    const resTimeout = this.timeout && stream.writable ? setTimeout(() => {
+      stream.emit('error', new FetchError(
+        `Response timeout while trying to fetch ${
+          this.url} (over ${this.timeout}ms)`, 'body-timeout'))
+    }, this.timeout) : null
+
+    // do not keep the process open just for this timeout, even
+    // though we expect it'll get cleared eventually.
+    if (resTimeout && resTimeout.unref) {
+      resTimeout.unref()
+    }
+
+    // do the pipe in the promise, because the pipe() can send too much
+    // data through right away and upset the MP Sized object
+    return new Promise((resolve, reject) => {
+      // if the stream is some other kind of stream, then pipe through a MP
+      // so we can collect it more easily.
+      if (stream !== upstream) {
+        upstream.on('error', er => stream.emit('error', er))
+        upstream.pipe(stream)
+      }
+      resolve()
+    }).then(() => stream.concat()).then(buf => {
+      clearTimeout(resTimeout)
+      return buf
+    }).catch(er => {
+      clearTimeout(resTimeout)
+      // request was aborted, reject with this Error
+      if (er.name === 'AbortError' || er.name === 'FetchError') {
+        throw er
+      } else if (er.name === 'RangeError') {
+        throw new FetchError(`Could not create Buffer from response body for ${
+          this.url}: ${er.message}`, 'system', er)
+      } else {
+        // other errors, such as incorrect content-encoding or content-length
+        throw new FetchError(`Invalid response body while trying to fetch ${
+          this.url}: ${er.message}`, 'system', er)
+      }
+    })
+  }
+
+  static clone (instance) {
+    if (instance.bodyUsed) {
+      throw new Error('cannot clone body after it is used')
+    }
+
+    const body = instance.body
+
+    // check that body is a stream and not form-data object
+    // NB: can't clone the form-data object without having it as a dependency
+    if (Minipass.isStream(body) && typeof body.getBoundary !== 'function') {
+      // create a dedicated tee stream so that we don't lose data
+      // potentially sitting in the body stream's buffer by writing it
+      // immediately to p1 and not having it for p2.
+      const tee = new Minipass()
+      const p1 = new Minipass()
+      const p2 = new Minipass()
+      tee.on('error', er => {
+        p1.emit('error', er)
+        p2.emit('error', er)
+      })
+      body.on('error', er => tee.emit('error', er))
+      tee.pipe(p1)
+      tee.pipe(p2)
+      body.pipe(tee)
+      // set instance body to one fork, return the other
+      instance[INTERNALS].body = p1
+      return p2
+    } else {
+      return instance.body
+    }
+  }
+
+  static extractContentType (body) {
+    return body === null || body === undefined ? null
+      : typeof body === 'string' ? 'text/plain;charset=UTF-8'
+      : isURLSearchParams(body)
+        ? 'application/x-www-form-urlencoded;charset=UTF-8'
+        : isBlob(body) ? body.type || null
+        : Buffer.isBuffer(body) ? null
+        : Object.prototype.toString.call(body) === '[object ArrayBuffer]' ? null
+        : ArrayBuffer.isView(body) ? null
+        : typeof body.getBoundary === 'function'
+          ? `multipart/form-data;boundary=${body.getBoundary()}`
+          : Minipass.isStream(body) ? null
+          : 'text/plain;charset=UTF-8'
+  }
+
+  static getTotalBytes (instance) {
+    const { body } = instance
+    return (body === null || body === undefined) ? 0
+      : isBlob(body) ? body.size
+      : Buffer.isBuffer(body) ? body.length
+      : body && typeof body.getLengthSync === 'function' && (
+        // detect form data input from form-data module
+        body._lengthRetrievers &&
+        /* istanbul ignore next */ body._lengthRetrievers.length === 0 || // 1.x
+        body.hasKnownLength && body.hasKnownLength()) // 2.x
+        ? body.getLengthSync()
+        : null
+  }
+
+  static writeToStream (dest, instance) {
+    const { body } = instance
+
+    if (body === null || body === undefined) {
+      dest.end()
+    } else if (Buffer.isBuffer(body) || typeof body === 'string') {
+      dest.end(body)
+    } else {
+      // body is stream or blob
+      const stream = isBlob(body) ? body.stream() : body
+      stream.on('error', er => dest.emit('error', er)).pipe(dest)
+    }
+
+    return dest
+  }
+}
+
+Object.defineProperties(Body.prototype, {
+  body: { enumerable: true },
+  bodyUsed: { enumerable: true },
+  arrayBuffer: { enumerable: true },
+  blob: { enumerable: true },
+  json: { enumerable: true },
+  text: { enumerable: true },
+})
+
+const isURLSearchParams = obj =>
+  // Duck-typing as a necessary condition.
+  (typeof obj !== 'object' ||
+    typeof obj.append !== 'function' ||
+    typeof obj.delete !== 'function' ||
+    typeof obj.get !== 'function' ||
+    typeof obj.getAll !== 'function' ||
+    typeof obj.has !== 'function' ||
+    typeof obj.set !== 'function') ? false
+  // Brand-checking and more duck-typing as optional condition.
+  : obj.constructor.name === 'URLSearchParams' ||
+    Object.prototype.toString.call(obj) === '[object URLSearchParams]' ||
+    typeof obj.sort === 'function'
+
+const isBlob = obj =>
+  typeof obj === 'object' &&
+  typeof obj.arrayBuffer === 'function' &&
+  typeof obj.type === 'string' &&
+  typeof obj.stream === 'function' &&
+  typeof obj.constructor === 'function' &&
+  typeof obj.constructor.name === 'string' &&
+  /^(Blob|File)$/.test(obj.constructor.name) &&
+  /^(Blob|File)$/.test(obj[Symbol.toStringTag])
+
+const convertBody = (buffer, headers) => {
+  /* istanbul ignore if */
+  if (typeof convert !== 'function') {
+    throw new Error('The package `encoding` must be installed to use the textConverted() function')
+  }
+
+  const ct = headers && headers.get('content-type')
+  let charset = 'utf-8'
+  let res
+
+  // header
+  if (ct) {
+    res = /charset=([^;]*)/i.exec(ct)
+  }
+
+  // no charset in content type, peek at response body for at most 1024 bytes
+  const str = buffer.slice(0, 1024).toString()
+
+  // html5
+  if (!res && str) {
+    res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str)
+  }
+
+  // html4
+  if (!res && str) {
+    res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str)
+
+    if (!res) {
+      res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str)
+      if (res) {
+        res.pop()
+      } // drop last quote
+    }
+
+    if (res) {
+      res = /charset=(.*)/i.exec(res.pop())
+    }
+  }
+
+  // xml
+  if (!res && str) {
+    res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str)
+  }
+
+  // found charset
+  if (res) {
+    charset = res.pop()
+
+    // prevent decode issues when sites use incorrect encoding
+    // ref: https://hsivonen.fi/encoding-menu/
+    if (charset === 'gb2312' || charset === 'gbk') {
+      charset = 'gb18030'
+    }
+  }
+
+  // turn raw buffers into a single utf-8 buffer
+  return convert(
+    buffer,
+    'UTF-8',
+    charset
+  ).toString()
+}
+
+module.exports = Body

node_modules/minipass-fetch/lib/fetch-error.js

@@ -0,0 +1,32 @@
+'use strict'
+class FetchError extends Error {
+  constructor (message, type, systemError) {
+    super(message)
+    this.code = 'FETCH_ERROR'
+
+    // pick up code, expected, path, ...
+    if (systemError) {
+      Object.assign(this, systemError)
+    }
+
+    this.errno = this.code
+
+    // override anything the system error might've clobbered
+    this.type = this.code === 'EBADSIZE' && this.found > this.expect
+      ? 'max-size' : type
+    this.message = message
+    Error.captureStackTrace(this, this.constructor)
+  }
+
+  get name () {
+    return 'FetchError'
+  }
+
+  // don't allow name to be overwritten
+  set name (n) {}
+
+  get [Symbol.toStringTag] () {
+    return 'FetchError'
+  }
+}
+module.exports = FetchError

node_modules/minipass-fetch/lib/headers.js

@@ -0,0 +1,267 @@
+'use strict'
+const invalidTokenRegex = /[^^_`a-zA-Z\-0-9!#$%&'*+.|~]/
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/
+
+const validateName = name => {
+  name = `${name}`
+  if (invalidTokenRegex.test(name) || name === '') {
+    throw new TypeError(`${name} is not a legal HTTP header name`)
+  }
+}
+
+const validateValue = value => {
+  value = `${value}`
+  if (invalidHeaderCharRegex.test(value)) {
+    throw new TypeError(`${value} is not a legal HTTP header value`)
+  }
+}
+
+const find = (map, name) => {
+  name = name.toLowerCase()
+  for (const key in map) {
+    if (key.toLowerCase() === name) {
+      return key
+    }
+  }
+  return undefined
+}
+
+const MAP = Symbol('map')
+class Headers {
+  constructor (init = undefined) {
+    this[MAP] = Object.create(null)
+    if (init instanceof Headers) {
+      const rawHeaders = init.raw()
+      const headerNames = Object.keys(rawHeaders)
+      for (const headerName of headerNames) {
+        for (const value of rawHeaders[headerName]) {
+          this.append(headerName, value)
+        }
+      }
+      return
+    }
+
+    // no-op
+    if (init === undefined || init === null) {
+      return
+    }
+
+    if (typeof init === 'object') {
+      const method = init[Symbol.iterator]
+      if (method !== null && method !== undefined) {
+        if (typeof method !== 'function') {
+          throw new TypeError('Header pairs must be iterable')
+        }
+
+        // sequence<sequence<ByteString>>
+        // Note: per spec we have to first exhaust the lists then process them
+        const pairs = []
+        for (const pair of init) {
+          if (typeof pair !== 'object' ||
+              typeof pair[Symbol.iterator] !== 'function') {
+            throw new TypeError('Each header pair must be iterable')
+          }
+          const arrPair = Array.from(pair)
+          if (arrPair.length !== 2) {
+            throw new TypeError('Each header pair must be a name/value tuple')
+          }
+          pairs.push(arrPair)
+        }
+
+        for (const pair of pairs) {
+          this.append(pair[0], pair[1])
+        }
+      } else {
+        // record<ByteString, ByteString>
+        for (const key of Object.keys(init)) {
+          this.append(key, init[key])
+        }
+      }
+    } else {
+      throw new TypeError('Provided initializer must be an object')
+    }
+  }
+
+  get (name) {
+    name = `${name}`
+    validateName(name)
+    const key = find(this[MAP], name)
+    if (key === undefined) {
+      return null
+    }
+
+    return this[MAP][key].join(', ')
+  }
+
+  forEach (callback, thisArg = undefined) {
+    let pairs = getHeaders(this)
+    for (let i = 0; i < pairs.length; i++) {
+      const [name, value] = pairs[i]
+      callback.call(thisArg, value, name, this)
+      // refresh in case the callback added more headers
+      pairs = getHeaders(this)
+    }
+  }
+
+  set (name, value) {
+    name = `${name}`
+    value = `${value}`
+    validateName(name)
+    validateValue(value)
+    const key = find(this[MAP], name)
+    this[MAP][key !== undefined ? key : name] = [value]
+  }
+
+  append (name, value) {
+    name = `${name}`
+    value = `${value}`
+    validateName(name)
+    validateValue(value)
+    const key = find(this[MAP], name)
+    if (key !== undefined) {
+      this[MAP][key].push(value)
+    } else {
+      this[MAP][name] = [value]
+    }
+  }
+
+  has (name) {
+    name = `${name}`
+    validateName(name)
+    return find(this[MAP], name) !== undefined
+  }
+
+  delete (name) {
+    name = `${name}`
+    validateName(name)
+    const key = find(this[MAP], name)
+    if (key !== undefined) {
+      delete this[MAP][key]
+    }
+  }
+
+  raw () {
+    return this[MAP]
+  }
+
+  keys () {
+    return new HeadersIterator(this, 'key')
+  }
+
+  values () {
+    return new HeadersIterator(this, 'value')
+  }
+
+  [Symbol.iterator] () {
+    return new HeadersIterator(this, 'key+value')
+  }
+
+  entries () {
+    return new HeadersIterator(this, 'key+value')
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Headers'
+  }
+
+  static exportNodeCompatibleHeaders (headers) {
+    const obj = Object.assign(Object.create(null), headers[MAP])
+
+    // http.request() only supports string as Host header. This hack makes
+    // specifying custom Host header possible.
+    const hostHeaderKey = find(headers[MAP], 'Host')
+    if (hostHeaderKey !== undefined) {
+      obj[hostHeaderKey] = obj[hostHeaderKey][0]
+    }
+
+    return obj
+  }
+
+  static createHeadersLenient (obj) {
+    const headers = new Headers()
+    for (const name of Object.keys(obj)) {
+      if (invalidTokenRegex.test(name)) {
+        continue
+      }
+
+      if (Array.isArray(obj[name])) {
+        for (const val of obj[name]) {
+          if (invalidHeaderCharRegex.test(val)) {
+            continue
+          }
+
+          if (headers[MAP][name] === undefined) {
+            headers[MAP][name] = [val]
+          } else {
+            headers[MAP][name].push(val)
+          }
+        }
+      } else if (!invalidHeaderCharRegex.test(obj[name])) {
+        headers[MAP][name] = [obj[name]]
+      }
+    }
+    return headers
+  }
+}
+
+Object.defineProperties(Headers.prototype, {
+  get: { enumerable: true },
+  forEach: { enumerable: true },
+  set: { enumerable: true },
+  append: { enumerable: true },
+  has: { enumerable: true },
+  delete: { enumerable: true },
+  keys: { enumerable: true },
+  values: { enumerable: true },
+  entries: { enumerable: true },
+})
+
+const getHeaders = (headers, kind = 'key+value') =>
+  Object.keys(headers[MAP]).sort().map(
+    kind === 'key' ? k => k.toLowerCase()
+    : kind === 'value' ? k => headers[MAP][k].join(', ')
+    : k => [k.toLowerCase(), headers[MAP][k].join(', ')]
+  )
+
+const INTERNAL = Symbol('internal')
+
+class HeadersIterator {
+  constructor (target, kind) {
+    this[INTERNAL] = {
+      target,
+      kind,
+      index: 0,
+    }
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'HeadersIterator'
+  }
+
+  next () {
+    /* istanbul ignore if: should be impossible */
+    if (!this || Object.getPrototypeOf(this) !== HeadersIterator.prototype) {
+      throw new TypeError('Value of `this` is not a HeadersIterator')
+    }
+
+    const { target, kind, index } = this[INTERNAL]
+    const values = getHeaders(target, kind)
+    const len = values.length
+    if (index >= len) {
+      return {
+        value: undefined,
+        done: true,
+      }
+    }
+
+    this[INTERNAL].index++
+
+    return { value: values[index], done: false }
+  }
+}
+
+// manually extend because 'extends' requires a ctor
+Object.setPrototypeOf(HeadersIterator.prototype,
+  Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())))
+
+module.exports = Headers

node_modules/minipass-fetch/lib/index.js

@@ -0,0 +1,365 @@
+'use strict'
+const { URL } = require('url')
+const http = require('http')
+const https = require('https')
+const zlib = require('minizlib')
+const Minipass = require('minipass')
+
+const Body = require('./body.js')
+const { writeToStream, getTotalBytes } = Body
+const Response = require('./response.js')
+const Headers = require('./headers.js')
+const { createHeadersLenient } = Headers
+const Request = require('./request.js')
+const { getNodeRequestOptions } = Request
+const FetchError = require('./fetch-error.js')
+const AbortError = require('./abort-error.js')
+
+// XXX this should really be split up and unit-ized for easier testing
+// and better DRY implementation of data/http request aborting
+const fetch = async (url, opts) => {
+  if (/^data:/.test(url)) {
+    const request = new Request(url, opts)
+    // delay 1 promise tick so that the consumer can abort right away
+    return Promise.resolve().then(() => new Promise((resolve, reject) => {
+      let type, data
+      try {
+        const { pathname, search } = new URL(url)
+        const split = pathname.split(',')
+        if (split.length < 2) {
+          throw new Error('invalid data: URI')
+        }
+        const mime = split.shift()
+        const base64 = /;base64$/.test(mime)
+        type = base64 ? mime.slice(0, -1 * ';base64'.length) : mime
+        const rawData = decodeURIComponent(split.join(',') + search)
+        data = base64 ? Buffer.from(rawData, 'base64') : Buffer.from(rawData)
+      } catch (er) {
+        return reject(new FetchError(`[${request.method}] ${
+          request.url} invalid URL, ${er.message}`, 'system', er))
+      }
+
+      const { signal } = request
+      if (signal && signal.aborted) {
+        return reject(new AbortError('The user aborted a request.'))
+      }
+
+      const headers = { 'Content-Length': data.length }
+      if (type) {
+        headers['Content-Type'] = type
+      }
+      return resolve(new Response(data, { headers }))
+    }))
+  }
+
+  return new Promise((resolve, reject) => {
+    // build request object
+    const request = new Request(url, opts)
+    let options
+    try {
+      options = getNodeRequestOptions(request)
+    } catch (er) {
+      return reject(er)
+    }
+
+    const send = (options.protocol === 'https:' ? https : http).request
+    const { signal } = request
+    let response = null
+    const abort = () => {
+      const error = new AbortError('The user aborted a request.')
+      reject(error)
+      if (Minipass.isStream(request.body) &&
+          typeof request.body.destroy === 'function') {
+        request.body.destroy(error)
+      }
+      if (response && response.body) {
+        response.body.emit('error', error)
+      }
+    }
+
+    if (signal && signal.aborted) {
+      return abort()
+    }
+
+    const abortAndFinalize = () => {
+      abort()
+      finalize()
+    }
+
+    const finalize = () => {
+      req.abort()
+      if (signal) {
+        signal.removeEventListener('abort', abortAndFinalize)
+      }
+      clearTimeout(reqTimeout)
+    }
+
+    // send request
+    const req = send(options)
+
+    if (signal) {
+      signal.addEventListener('abort', abortAndFinalize)
+    }
+
+    let reqTimeout = null
+    if (request.timeout) {
+      req.once('socket', socket => {
+        reqTimeout = setTimeout(() => {
+          reject(new FetchError(`network timeout at: ${
+            request.url}`, 'request-timeout'))
+          finalize()
+        }, request.timeout)
+      })
+    }
+
+    req.on('error', er => {
+      // if a 'response' event is emitted before the 'error' event, then by the
+      // time this handler is run it's too late to reject the Promise for the
+      // response. instead, we forward the error event to the response stream
+      // so that the error will surface to the user when they try to consume
+      // the body. this is done as a side effect of aborting the request except
+      // for in windows, where we must forward the event manually, otherwise
+      // there is no longer a ref'd socket attached to the request and the
+      // stream never ends so the event loop runs out of work and the process
+      // exits without warning.
+      // coverage skipped here due to the difficulty in testing
+      // istanbul ignore next
+      if (req.res) {
+        req.res.emit('error', er)
+      }
+      reject(new FetchError(`request to ${request.url} failed, reason: ${
+        er.message}`, 'system', er))
+      finalize()
+    })
+
+    req.on('response', res => {
+      clearTimeout(reqTimeout)
+
+      const headers = createHeadersLenient(res.headers)
+
+      // HTTP fetch step 5
+      if (fetch.isRedirect(res.statusCode)) {
+        // HTTP fetch step 5.2
+        const location = headers.get('Location')
+
+        // HTTP fetch step 5.3
+        const locationURL = location === null ? null
+          : (new URL(location, request.url)).toString()
+
+        // HTTP fetch step 5.5
+        if (request.redirect === 'error') {
+          reject(new FetchError('uri requested responds with a redirect, ' +
+            `redirect mode is set to error: ${request.url}`, 'no-redirect'))
+          finalize()
+          return
+        } else if (request.redirect === 'manual') {
+          // node-fetch-specific step: make manual redirect a bit easier to
+          // use by setting the Location header value to the resolved URL.
+          if (locationURL !== null) {
+            // handle corrupted header
+            try {
+              headers.set('Location', locationURL)
+            } catch (err) {
+              /* istanbul ignore next: nodejs server prevent invalid
+                 response headers, we can't test this through normal
+                 request */
+              reject(err)
+            }
+          }
+        } else if (request.redirect === 'follow' && locationURL !== null) {
+          // HTTP-redirect fetch step 5
+          if (request.counter >= request.follow) {
+            reject(new FetchError(`maximum redirect reached at: ${
+              request.url}`, 'max-redirect'))
+            finalize()
+            return
+          }
+
+          // HTTP-redirect fetch step 9
+          if (res.statusCode !== 303 &&
+              request.body &&
+              getTotalBytes(request) === null) {
+            reject(new FetchError(
+              'Cannot follow redirect with body being a readable stream',
+              'unsupported-redirect'
+            ))
+            finalize()
+            return
+          }
+
+          // Update host due to redirection
+          request.headers.set('host', (new URL(locationURL)).host)
+
+          // HTTP-redirect fetch step 6 (counter increment)
+          // Create a new Request object.
+          const requestOpts = {
+            headers: new Headers(request.headers),
+            follow: request.follow,
+            counter: request.counter + 1,
+            agent: request.agent,
+            compress: request.compress,
+            method: request.method,
+            body: request.body,
+            signal: request.signal,
+            timeout: request.timeout,
+          }
+
+          // if the redirect is to a new hostname, strip the authorization and cookie headers
+          const parsedOriginal = new URL(request.url)
+          const parsedRedirect = new URL(locationURL)
+          if (parsedOriginal.hostname !== parsedRedirect.hostname) {
+            requestOpts.headers.delete('authorization')
+            requestOpts.headers.delete('cookie')
+          }
+
+          // HTTP-redirect fetch step 11
+          if (res.statusCode === 303 || (
+            (res.statusCode === 301 || res.statusCode === 302) &&
+              request.method === 'POST'
+          )) {
+            requestOpts.method = 'GET'
+            requestOpts.body = undefined
+            requestOpts.headers.delete('content-length')
+          }
+
+          // HTTP-redirect fetch step 15
+          resolve(fetch(new Request(locationURL, requestOpts)))
+          finalize()
+          return
+        }
+      } // end if(isRedirect)
+
+      // prepare response
+      res.once('end', () =>
+        signal && signal.removeEventListener('abort', abortAndFinalize))
+
+      const body = new Minipass()
+      // if an error occurs, either on the response stream itself, on one of the
+      // decoder streams, or a response length timeout from the Body class, we
+      // forward the error through to our internal body stream. If we see an
+      // error event on that, we call finalize to abort the request and ensure
+      // we don't leave a socket believing a request is in flight.
+      // this is difficult to test, so lacks specific coverage.
+      body.on('error', finalize)
+      // exceedingly rare that the stream would have an error,
+      // but just in case we proxy it to the stream in use.
+      res.on('error', /* istanbul ignore next */ er => body.emit('error', er))
+      res.on('data', (chunk) => body.write(chunk))
+      res.on('end', () => body.end())
+
+      const responseOptions = {
+        url: request.url,
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: headers,
+        size: request.size,
+        timeout: request.timeout,
+        counter: request.counter,
+        trailer: new Promise(resolveTrailer =>
+          res.on('end', () => resolveTrailer(createHeadersLenient(res.trailers)))),
+      }
+
+      // HTTP-network fetch step 12.1.1.3
+      const codings = headers.get('Content-Encoding')
+
+      // HTTP-network fetch step 12.1.1.4: handle content codings
+
+      // in following scenarios we ignore compression support
+      // 1. compression support is disabled
+      // 2. HEAD request
+      // 3. no Content-Encoding header
+      // 4. no content response (204)
+      // 5. content not modified response (304)
+      if (!request.compress ||
+          request.method === 'HEAD' ||
+          codings === null ||
+          res.statusCode === 204 ||
+          res.statusCode === 304) {
+        response = new Response(body, responseOptions)
+        resolve(response)
+        return
+      }
+
+      // Be less strict when decoding compressed responses, since sometimes
+      // servers send slightly invalid responses that are still accepted
+      // by common browsers.
+      // Always using Z_SYNC_FLUSH is what cURL does.
+      const zlibOptions = {
+        flush: zlib.constants.Z_SYNC_FLUSH,
+        finishFlush: zlib.constants.Z_SYNC_FLUSH,
+      }
+
+      // for gzip
+      if (codings === 'gzip' || codings === 'x-gzip') {
+        const unzip = new zlib.Gunzip(zlibOptions)
+        response = new Response(
+          // exceedingly rare that the stream would have an error,
+          // but just in case we proxy it to the stream in use.
+          body.on('error', /* istanbul ignore next */ er => unzip.emit('error', er)).pipe(unzip),
+          responseOptions
+        )
+        resolve(response)
+        return
+      }
+
+      // for deflate
+      if (codings === 'deflate' || codings === 'x-deflate') {
+        // handle the infamous raw deflate response from old servers
+        // a hack for old IIS and Apache servers
+        const raw = res.pipe(new Minipass())
+        raw.once('data', chunk => {
+          // see http://stackoverflow.com/questions/37519828
+          const decoder = (chunk[0] & 0x0F) === 0x08
+            ? new zlib.Inflate()
+            : new zlib.InflateRaw()
+          // exceedingly rare that the stream would have an error,
+          // but just in case we proxy it to the stream in use.
+          body.on('error', /* istanbul ignore next */ er => decoder.emit('error', er)).pipe(decoder)
+          response = new Response(decoder, responseOptions)
+          resolve(response)
+        })
+        return
+      }
+
+      // for br
+      if (codings === 'br') {
+        // ignoring coverage so tests don't have to fake support (or lack of) for brotli
+        // istanbul ignore next
+        try {
+          var decoder = new zlib.BrotliDecompress()
+        } catch (err) {
+          reject(err)
+          finalize()
+          return
+        }
+        // exceedingly rare that the stream would have an error,
+        // but just in case we proxy it to the stream in use.
+        body.on('error', /* istanbul ignore next */ er => decoder.emit('error', er)).pipe(decoder)
+        response = new Response(decoder, responseOptions)
+        resolve(response)
+        return
+      }
+
+      // otherwise, use response as-is
+      response = new Response(body, responseOptions)
+      resolve(response)
+    })
+
+    writeToStream(req, request)
+  })
+}
+
+module.exports = fetch
+
+fetch.isRedirect = code =>
+  code === 301 ||
+  code === 302 ||
+  code === 303 ||
+  code === 307 ||
+  code === 308
+
+fetch.Headers = Headers
+fetch.Request = Request
+fetch.Response = Response
+fetch.FetchError = FetchError
+fetch.AbortError = AbortError

node_modules/minipass-fetch/lib/request.js

@@ -0,0 +1,281 @@
+'use strict'
+const { URL } = require('url')
+const Minipass = require('minipass')
+const Headers = require('./headers.js')
+const { exportNodeCompatibleHeaders } = Headers
+const Body = require('./body.js')
+const { clone, extractContentType, getTotalBytes } = Body
+
+const version = require('../package.json').version
+const defaultUserAgent =
+  `minipass-fetch/${version} (+https://github.com/isaacs/minipass-fetch)`
+
+const INTERNALS = Symbol('Request internals')
+
+const isRequest = input =>
+  typeof input === 'object' && typeof input[INTERNALS] === 'object'
+
+const isAbortSignal = signal => {
+  const proto = (
+    signal
+    && typeof signal === 'object'
+    && Object.getPrototypeOf(signal)
+  )
+  return !!(proto && proto.constructor.name === 'AbortSignal')
+}
+
+class Request extends Body {
+  constructor (input, init = {}) {
+    const parsedURL = isRequest(input) ? new URL(input.url)
+      : input && input.href ? new URL(input.href)
+      : new URL(`${input}`)
+
+    if (isRequest(input)) {
+      init = { ...input[INTERNALS], ...init }
+    } else if (!input || typeof input === 'string') {
+      input = {}
+    }
+
+    const method = (init.method || input.method || 'GET').toUpperCase()
+    const isGETHEAD = method === 'GET' || method === 'HEAD'
+
+    if ((init.body !== null && init.body !== undefined ||
+        isRequest(input) && input.body !== null) && isGETHEAD) {
+      throw new TypeError('Request with GET/HEAD method cannot have body')
+    }
+
+    const inputBody = init.body !== null && init.body !== undefined ? init.body
+      : isRequest(input) && input.body !== null ? clone(input)
+      : null
+
+    super(inputBody, {
+      timeout: init.timeout || input.timeout || 0,
+      size: init.size || input.size || 0,
+    })
+
+    const headers = new Headers(init.headers || input.headers || {})
+
+    if (inputBody !== null && inputBody !== undefined &&
+        !headers.has('Content-Type')) {
+      const contentType = extractContentType(inputBody)
+      if (contentType) {
+        headers.append('Content-Type', contentType)
+      }
+    }
+
+    const signal = 'signal' in init ? init.signal
+      : null
+
+    if (signal !== null && signal !== undefined && !isAbortSignal(signal)) {
+      throw new TypeError('Expected signal must be an instanceof AbortSignal')
+    }
+
+    // TLS specific options that are handled by node
+    const {
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized = process.env.NODE_TLS_REJECT_UNAUTHORIZED !== '0',
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    } = init
+
+    this[INTERNALS] = {
+      method,
+      redirect: init.redirect || input.redirect || 'follow',
+      headers,
+      parsedURL,
+      signal,
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    }
+
+    // node-fetch-only options
+    this.follow = init.follow !== undefined ? init.follow
+      : input.follow !== undefined ? input.follow
+      : 20
+    this.compress = init.compress !== undefined ? init.compress
+      : input.compress !== undefined ? input.compress
+      : true
+    this.counter = init.counter || input.counter || 0
+    this.agent = init.agent || input.agent
+  }
+
+  get method () {
+    return this[INTERNALS].method
+  }
+
+  get url () {
+    return this[INTERNALS].parsedURL.toString()
+  }
+
+  get headers () {
+    return this[INTERNALS].headers
+  }
+
+  get redirect () {
+    return this[INTERNALS].redirect
+  }
+
+  get signal () {
+    return this[INTERNALS].signal
+  }
+
+  clone () {
+    return new Request(this)
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Request'
+  }
+
+  static getNodeRequestOptions (request) {
+    const parsedURL = request[INTERNALS].parsedURL
+    const headers = new Headers(request[INTERNALS].headers)
+
+    // fetch step 1.3
+    if (!headers.has('Accept')) {
+      headers.set('Accept', '*/*')
+    }
+
+    // Basic fetch
+    if (!/^https?:$/.test(parsedURL.protocol)) {
+      throw new TypeError('Only HTTP(S) protocols are supported')
+    }
+
+    if (request.signal &&
+        Minipass.isStream(request.body) &&
+        typeof request.body.destroy !== 'function') {
+      throw new Error(
+        'Cancellation of streamed requests with AbortSignal is not supported')
+    }
+
+    // HTTP-network-or-cache fetch steps 2.4-2.7
+    const contentLengthValue =
+      (request.body === null || request.body === undefined) &&
+        /^(POST|PUT)$/i.test(request.method) ? '0'
+      : request.body !== null && request.body !== undefined
+        ? getTotalBytes(request)
+        : null
+
+    if (contentLengthValue) {
+      headers.set('Content-Length', contentLengthValue + '')
+    }
+
+    // HTTP-network-or-cache fetch step 2.11
+    if (!headers.has('User-Agent')) {
+      headers.set('User-Agent', defaultUserAgent)
+    }
+
+    // HTTP-network-or-cache fetch step 2.15
+    if (request.compress && !headers.has('Accept-Encoding')) {
+      headers.set('Accept-Encoding', 'gzip,deflate')
+    }
+
+    const agent = typeof request.agent === 'function'
+      ? request.agent(parsedURL)
+      : request.agent
+
+    if (!headers.has('Connection') && !agent) {
+      headers.set('Connection', 'close')
+    }
+
+    // TLS specific options that are handled by node
+    const {
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    } = request[INTERNALS]
+
+    // HTTP-network fetch step 4.2
+    // chunked encoding is handled by Node.js
+
+    // we cannot spread parsedURL directly, so we have to read each property one-by-one
+    // and map them to the equivalent https?.request() method options
+    const urlProps = {
+      auth: parsedURL.username || parsedURL.password
+        ? `${parsedURL.username}:${parsedURL.password}`
+        : '',
+      host: parsedURL.host,
+      hostname: parsedURL.hostname,
+      path: `${parsedURL.pathname}${parsedURL.search}`,
+      port: parsedURL.port,
+      protocol: parsedURL.protocol,
+    }
+
+    return {
+      ...urlProps,
+      method: request.method,
+      headers: exportNodeCompatibleHeaders(headers),
+      agent,
+      ca,
+      cert,
+      ciphers,
+      clientCertEngine,
+      crl,
+      dhparam,
+      ecdhCurve,
+      family,
+      honorCipherOrder,
+      key,
+      passphrase,
+      pfx,
+      rejectUnauthorized,
+      secureOptions,
+      secureProtocol,
+      servername,
+      sessionIdContext,
+    }
+  }
+}
+
+module.exports = Request
+
+Object.defineProperties(Request.prototype, {
+  method: { enumerable: true },
+  url: { enumerable: true },
+  headers: { enumerable: true },
+  redirect: { enumerable: true },
+  clone: { enumerable: true },
+  signal: { enumerable: true },
+})

node_modules/minipass-fetch/lib/response.js

@@ -0,0 +1,90 @@
+'use strict'
+const http = require('http')
+const { STATUS_CODES } = http
+
+const Headers = require('./headers.js')
+const Body = require('./body.js')
+const { clone, extractContentType } = Body
+
+const INTERNALS = Symbol('Response internals')
+
+class Response extends Body {
+  constructor (body = null, opts = {}) {
+    super(body, opts)
+
+    const status = opts.status || 200
+    const headers = new Headers(opts.headers)
+
+    if (body !== null && body !== undefined && !headers.has('Content-Type')) {
+      const contentType = extractContentType(body)
+      if (contentType) {
+        headers.append('Content-Type', contentType)
+      }
+    }
+
+    this[INTERNALS] = {
+      url: opts.url,
+      status,
+      statusText: opts.statusText || STATUS_CODES[status],
+      headers,
+      counter: opts.counter,
+      trailer: Promise.resolve(opts.trailer || new Headers()),
+    }
+  }
+
+  get trailer () {
+    return this[INTERNALS].trailer
+  }
+
+  get url () {
+    return this[INTERNALS].url || ''
+  }
+
+  get status () {
+    return this[INTERNALS].status
+  }
+
+  get ok () {
+    return this[INTERNALS].status >= 200 && this[INTERNALS].status < 300
+  }
+
+  get redirected () {
+    return this[INTERNALS].counter > 0
+  }
+
+  get statusText () {
+    return this[INTERNALS].statusText
+  }
+
+  get headers () {
+    return this[INTERNALS].headers
+  }
+
+  clone () {
+    return new Response(clone(this), {
+      url: this.url,
+      status: this.status,
+      statusText: this.statusText,
+      headers: this.headers,
+      ok: this.ok,
+      redirected: this.redirected,
+      trailer: this.trailer,
+    })
+  }
+
+  get [Symbol.toStringTag] () {
+    return 'Response'
+  }
+}
+
+module.exports = Response
+
+Object.defineProperties(Response.prototype, {
+  url: { enumerable: true },
+  status: { enumerable: true },
+  ok: { enumerable: true },
+  redirected: { enumerable: true },
+  statusText: { enumerable: true },
+  headers: { enumerable: true },
+  clone: { enumerable: true },
+})