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website/node_modules/npm/lib/auth/sso.js

@@ -0,0 +1,56 @@
+var log = require('npmlog')
+var npm = require('../npm.js')
+var output = require('../utils/output')
+var openUrl = require('../utils/open-url')
+
+module.exports.login = function login (creds, registry, scope, cb) {
+  var ssoType = npm.config.get('sso-type')
+  if (!ssoType) { return cb(new Error('Missing option: sso-type')) }
+
+  var params = {
+    // We're reusing the legacy login endpoint, so we need some dummy
+    // stuff here to pass validation. They're never used.
+    auth: {
+      username: 'npm_' + ssoType + '_auth_dummy_user',
+      password: 'placeholder',
+      email: 'support@npmjs.com',
+      authType: ssoType
+    }
+  }
+  npm.registry.adduser(registry, params, function (er, doc) {
+    if (er) return cb(er)
+    if (!doc || !doc.token) return cb(new Error('no SSO token returned'))
+    if (!doc.sso) return cb(new Error('no SSO URL returned by services'))
+
+    openUrl(doc.sso, 'to complete your login please visit', function () {
+      pollForSession(registry, doc.token, function (err, username) {
+        if (err) return cb(err)
+
+        log.info('adduser', 'Authorized user %s', username)
+        var scopeMessage = scope ? ' to scope ' + scope : ''
+        output('Logged in as %s%s on %s.', username, scopeMessage, registry)
+
+        cb(null, { token: doc.token })
+      })
+    })
+  })
+}
+
+function pollForSession (registry, token, cb) {
+  log.info('adduser', 'Polling for validated SSO session')
+  npm.registry.whoami(registry, {
+    auth: {
+      token: token
+    }
+  }, function (er, username) {
+    if (er && er.statusCode !== 401) {
+      cb(er)
+    } else if (!username) {
+      setTimeout(function () {
+        pollForSession(registry, token, cb)
+      }, npm.config.get('sso-poll-frequency'))
+    } else {
+      cb(null, username)
+    }
+  })
+}