91 lines
2.7 KiB
JavaScript
Executable file
91 lines
2.7 KiB
JavaScript
Executable file
const Fetcher = require('./fetcher.js')
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const FileFetcher = require('./file.js')
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const _tarballFromResolved = Symbol.for('pacote.Fetcher._tarballFromResolved')
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const pacoteVersion = require('../package.json').version
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const fetch = require('npm-registry-fetch')
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const { Minipass } = require('minipass')
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const _cacheFetches = Symbol.for('pacote.Fetcher._cacheFetches')
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const _headers = Symbol('_headers')
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class RemoteFetcher extends Fetcher {
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constructor (spec, opts) {
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super(spec, opts)
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this.resolved = this.spec.fetchSpec
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const resolvedURL = new URL(this.resolved)
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if (this.replaceRegistryHost !== 'never'
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&& (this.replaceRegistryHost === 'always'
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|| this.replaceRegistryHost === resolvedURL.host)) {
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this.resolved = new URL(resolvedURL.pathname, this.registry).href
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}
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// nam is a fermented pork sausage that is good to eat
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const nameat = this.spec.name ? `${this.spec.name}@` : ''
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this.pkgid = opts.pkgid ? opts.pkgid : `remote:${nameat}${this.resolved}`
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}
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// Don't need to cache tarball fetches in pacote, because make-fetch-happen
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// will write into cacache anyway.
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get [_cacheFetches] () {
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return false
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}
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[_tarballFromResolved] () {
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const stream = new Minipass()
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stream.hasIntegrityEmitter = true
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const fetchOpts = {
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...this.opts,
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headers: this[_headers](),
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spec: this.spec,
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integrity: this.integrity,
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algorithms: [this.pickIntegrityAlgorithm()],
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}
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// eslint-disable-next-line promise/always-return
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fetch(this.resolved, fetchOpts).then(res => {
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res.body.on('error',
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/* istanbul ignore next - exceedingly rare and hard to simulate */
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er => stream.emit('error', er)
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)
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res.body.on('integrity', i => {
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this.integrity = i
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stream.emit('integrity', i)
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})
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res.body.pipe(stream)
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}).catch(er => stream.emit('error', er))
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return stream
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}
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[_headers] () {
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return {
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// npm will override this, but ensure that we always send *something*
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'user-agent': this.opts.userAgent ||
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`pacote/${pacoteVersion} node/${process.version}`,
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...(this.opts.headers || {}),
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'pacote-version': pacoteVersion,
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'pacote-req-type': 'tarball',
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'pacote-pkg-id': this.pkgid,
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...(this.integrity ? { 'pacote-integrity': String(this.integrity) }
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: {}),
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...(this.opts.headers || {}),
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}
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}
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get types () {
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return ['remote']
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}
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// getting a packument and/or manifest is the same as with a file: spec.
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// unpack the tarball stream, and then read from the package.json file.
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packument () {
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return FileFetcher.prototype.packument.apply(this)
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}
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manifest () {
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return FileFetcher.prototype.manifest.apply(this)
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}
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}
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module.exports = RemoteFetcher
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