'use strict'
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const { URL } = require('node:url')
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const npa = require('npm-package-arg')
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const npmFetch = require('npm-registry-fetch')
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const semver = require('semver')
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// given a tarball url and a registry url, returns just the
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// relevant pathname portion of it, so that it can be handled
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// elegantly by npm-registry-fetch which only expects pathnames
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// and handles the registry hostname via opts
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const getPathname = (tarball, registry) => {
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const registryUrl = new URL(registry).pathname.slice(1)
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let tarballUrl = new URL(tarball).pathname.slice(1)
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// test the tarball url to see if it starts with a possible
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// pathname from the registry url, in that case strips that portion
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// of it so that we only return the post-registry-url pathname
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if (registryUrl) {
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tarballUrl = tarballUrl.slice(registryUrl.length)
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}
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return tarballUrl
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}
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const unpublish = async (spec, opts) => {
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spec = npa(spec)
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// spec is used to pick the appropriate registry/auth combo.
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opts = {
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force: false,
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...opts,
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spec,
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}
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try {
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const pkgUri = spec.escapedName
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const pkg = await npmFetch.json(pkgUri, {
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...opts,
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query: { write: true },
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})
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const version = spec.rawSpec
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const allVersions = pkg.versions || {}
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const versionData = allVersions[version]
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const rawSpecs = (!spec.rawSpec || spec.rawSpec === '*')
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const onlyVersion = Object.keys(allVersions).length === 1
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const noVersions = !Object.keys(allVersions).length
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// if missing specific version,
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// assumed unpublished
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if (!versionData && !rawSpecs && !noVersions) {
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return true
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}
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// unpublish all versions of a package:
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// - no specs supplied "npm unpublish foo"
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// - all specs ("*") "npm unpublish foo@*"
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// - there was only one version
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// - has no versions field on packument
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if (rawSpecs || onlyVersion || noVersions) {
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await npmFetch(`${pkgUri}/-rev/${pkg._rev}`, {
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...opts,
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method: 'DELETE',
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ignoreBody: true,
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})
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return true
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} else {
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const dist = allVersions[version].dist
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delete allVersions[version]
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const latestVer = pkg['dist-tags'].latest
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// deleting dist tags associated to version
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Object.keys(pkg['dist-tags']).forEach(tag => {
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if (pkg['dist-tags'][tag] === version) {
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delete pkg['dist-tags'][tag]
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}
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})
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if (latestVer === version) {
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pkg['dist-tags'].latest = Object.keys(
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allVersions
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).sort(semver.compareLoose).pop()
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}
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delete pkg._revisions
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delete pkg._attachments
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// Update packument with removed versions
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await npmFetch(`${pkgUri}/-rev/${pkg._rev}`, {
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...opts,
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method: 'PUT',
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body: pkg,
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ignoreBody: true,
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})
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// Remove the tarball itself
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const { _rev } = await npmFetch.json(pkgUri, {
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...opts,
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query: { write: true },
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})
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const tarballUrl = getPathname(dist.tarball, opts.registry)
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await npmFetch(`${tarballUrl}/-rev/${_rev}`, {
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...opts,
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method: 'DELETE',
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ignoreBody: true,
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})
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return true
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}
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} catch (err) {
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if (err.code !== 'E404') {
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throw err
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}
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return true
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}
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}
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module.exports = unpublish
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