142 lines
3.8 KiB
JavaScript
142 lines
3.8 KiB
JavaScript
var url = require('url')
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var base64 = require('./base64')
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var decodeBase64 = base64.decodeBase64
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var encodeBase64 = base64.encodeBase64
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var tokenKey = ':_authToken'
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var legacyTokenKey = ':_auth'
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var userKey = ':username'
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var passwordKey = ':_password'
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module.exports = function () {
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var checkUrl
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var options
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if (arguments.length >= 2) {
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checkUrl = arguments[0]
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options = arguments[1]
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} else if (typeof arguments[0] === 'string') {
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checkUrl = arguments[0]
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} else {
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options = arguments[0]
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}
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options = options || {}
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options.npmrc = options.npmrc || require('rc')('npm', { registry: 'https://registry.npmjs.org/' }, {
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config: process.env.npm_config_userconfig || process.env.NPM_CONFIG_USERCONFIG
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})
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checkUrl = checkUrl || options.npmrc.registry
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return getRegistryAuthInfo(checkUrl, options) || getLegacyAuthInfo(options.npmrc)
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}
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function getRegistryAuthInfo (checkUrl, options) {
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var parsed = url.parse(checkUrl, false, true)
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var pathname
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while (pathname !== '/' && parsed.pathname !== pathname) {
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pathname = parsed.pathname || '/'
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var regUrl = '//' + parsed.host + pathname.replace(/\/$/, '')
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var authInfo = getAuthInfoForUrl(regUrl, options.npmrc)
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if (authInfo) {
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return authInfo
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}
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// break if not recursive
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if (!options.recursive) {
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return /\/$/.test(checkUrl)
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? undefined
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: getRegistryAuthInfo(url.resolve(checkUrl, '.'), options)
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}
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parsed.pathname = url.resolve(normalizePath(pathname), '..') || '/'
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}
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return undefined
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}
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function getLegacyAuthInfo (npmrc) {
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if (!npmrc._auth) {
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return undefined
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}
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var token = replaceEnvironmentVariable(npmrc._auth)
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return { token: token, type: 'Basic' }
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}
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function normalizePath (path) {
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return path[path.length - 1] === '/' ? path : path + '/'
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}
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function getAuthInfoForUrl (regUrl, npmrc) {
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// try to get bearer token
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var bearerAuth = getBearerToken(npmrc[regUrl + tokenKey] || npmrc[regUrl + '/' + tokenKey])
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if (bearerAuth) {
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return bearerAuth
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}
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// try to get basic token
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var username = npmrc[regUrl + userKey] || npmrc[regUrl + '/' + userKey]
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var password = npmrc[regUrl + passwordKey] || npmrc[regUrl + '/' + passwordKey]
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var basicAuth = getTokenForUsernameAndPassword(username, password)
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if (basicAuth) {
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return basicAuth
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}
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var basicAuthWithToken = getLegacyAuthToken(npmrc[regUrl + legacyTokenKey] || npmrc[regUrl + '/' + legacyTokenKey])
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if (basicAuthWithToken) {
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return basicAuthWithToken
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}
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return undefined
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}
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function replaceEnvironmentVariable (token) {
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return token.replace(/^\$\{?([^}]*)\}?$/, function (fullMatch, envVar) {
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return process.env[envVar]
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})
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}
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function getBearerToken (tok) {
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if (!tok) {
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return undefined
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}
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// check if bearer token is set as environment variable
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var token = replaceEnvironmentVariable(tok)
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return { token: token, type: 'Bearer' }
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}
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function getTokenForUsernameAndPassword (username, password) {
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if (!username || !password) {
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return undefined
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}
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// passwords are base64 encoded, so we need to decode it
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// See https://github.com/npm/npm/blob/v3.10.6/lib/config/set-credentials-by-uri.js#L26
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var pass = decodeBase64(replaceEnvironmentVariable(password))
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// a basic auth token is base64 encoded 'username:password'
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// See https://github.com/npm/npm/blob/v3.10.6/lib/config/get-credentials-by-uri.js#L70
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var token = encodeBase64(username + ':' + pass)
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// we found a basicToken token so let's exit the loop
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return {
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token: token,
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type: 'Basic',
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password: pass,
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username: username
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}
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}
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function getLegacyAuthToken (tok) {
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if (!tok) {
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return undefined
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}
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// check if legacy auth token is set as environment variable
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var token = replaceEnvironmentVariable(tok)
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return { token: token, type: 'Basic' }
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}
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