Support for legacy auth token on the registry url (#30)

index.js

@@ -5,6 +5,7 @@ var decodeBase64 = base64.decodeBase64
 var encodeBase64 = base64.encodeBase64
 
 var tokenKey = ':_authToken'
+var legacyTokenKey = ':_auth'
 var userKey = ':username'
 var passwordKey = ':_password'
 
@@ -80,6 +81,11 @@ function getAuthInfoForUrl (regUrl, npmrc) {
     return basicAuth
   }
 
+  var basicAuthWithToken = getLegacyAuthToken(npmrc[regUrl + legacyTokenKey] || npmrc[regUrl + '/' + legacyTokenKey])
+  if (basicAuthWithToken) {
+    return basicAuthWithToken
+  }
+
   return undefined
 }
 
@@ -121,3 +127,14 @@ function getTokenForUsernameAndPassword (username, password) {
     username: username
   }
 }
+
+function getLegacyAuthToken (tok) {
+  if (!tok) {
+    return undefined
+  }
+
+  // check if legacy auth token is set as environment variable
+  var token = replaceEnvironmentVariable(tok)
+
+  return { token: token, type: 'Basic' }
+}

test/auth-token.test.js

@@ -300,6 +300,25 @@ describe('auth-token', function () {
       })
     })
 
+    it('should return basic token if _auth is base64 encoded', function (done) {
+      var content = [
+        'registry=http://registry.foobar.eu/',
+        '//registry.foobar.eu/:_auth=' + encodeBase64('foobar:foobar')
+      ].join('\n')
+
+      fs.writeFile(npmRcPath, content, function (err) {
+        var getAuthToken = requireUncached('../index')
+        assert(!err, err)
+        var token = getAuthToken()
+        assert.deepStrictEqual(token, {
+          token: 'Zm9vYmFyOmZvb2Jhcg==',
+          type: 'Basic'
+        })
+        assert.strictEqual(decodeBase64(token.token), 'foobar:foobar')
+        done()
+      })
+    })
+
     it('should return basic token if registry url has port specified', function (done) {
       var content = [
         'registry=http://localhost:8770/',