source: trip-planner-front/node_modules/pacote/lib/remote.js@ 76712b2

Last change on this file since 76712b2 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 2.7 KB
Line 
1const Fetcher = require('./fetcher.js')
2const FileFetcher = require('./file.js')
3const _tarballFromResolved = Symbol.for('pacote.Fetcher._tarballFromResolved')
4const pacoteVersion = require('../package.json').version
5const fetch = require('npm-registry-fetch')
6const ssri = require('ssri')
7const Minipass = require('minipass')
8// The default registry URL is a string of great magic.
9const magic = /^https?:\/\/registry\.npmjs\.org\//
10
11const _cacheFetches = Symbol.for('pacote.Fetcher._cacheFetches')
12const _headers = Symbol('_headers')
13class RemoteFetcher extends Fetcher {
14 constructor (spec, opts) {
15 super(spec, opts)
16 this.resolved = this.spec.fetchSpec
17 if (magic.test(this.resolved) && !magic.test(this.registry + '/'))
18 this.resolved = this.resolved.replace(magic, this.registry + '/')
19
20 // nam is a fermented pork sausage that is good to eat
21 const nameat = this.spec.name ? `${this.spec.name}@` : ''
22 this.pkgid = opts.pkgid ? opts.pkgid : `remote:${nameat}${this.resolved}`
23 }
24
25 // Don't need to cache tarball fetches in pacote, because make-fetch-happen
26 // will write into cacache anyway.
27 get [_cacheFetches] () {
28 return false
29 }
30
31 [_tarballFromResolved] () {
32 const stream = new Minipass()
33 const fetchOpts = {
34 ...this.opts,
35 headers: this[_headers](),
36 spec: this.spec,
37 integrity: this.integrity,
38 algorithms: [ this.pickIntegrityAlgorithm() ],
39 }
40 fetch(this.resolved, fetchOpts).then(res => {
41 const hash = res.headers.get('x-local-cache-hash')
42 if (hash) {
43 this.integrity = decodeURIComponent(hash)
44 }
45
46 res.body.on('error',
47 /* istanbul ignore next - exceedingly rare and hard to simulate */
48 er => stream.emit('error', er)
49 ).pipe(stream)
50 }).catch(er => stream.emit('error', er))
51
52 return stream
53 }
54
55 [_headers] () {
56 return {
57 // npm will override this, but ensure that we always send *something*
58 'user-agent': this.opts.userAgent ||
59 `pacote/${pacoteVersion} node/${process.version}`,
60 ...(this.opts.headers || {}),
61 'pacote-version': pacoteVersion,
62 'pacote-req-type': 'tarball',
63 'pacote-pkg-id': this.pkgid,
64 ...(this.integrity ? { 'pacote-integrity': String(this.integrity) }
65 : {}),
66 ...(this.opts.headers || {}),
67 }
68 }
69
70 get types () {
71 return ['remote']
72 }
73
74 // getting a packument and/or manifest is the same as with a file: spec.
75 // unpack the tarball stream, and then read from the package.json file.
76 packument () {
77 return FileFetcher.prototype.packument.apply(this)
78 }
79
80 manifest () {
81 return FileFetcher.prototype.manifest.apply(this)
82 }
83}
84module.exports = RemoteFetcher
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