Generic OAuth provider support

Refactors facebook login into oauth generic login

Adds additional oauth2 providers

adds ability to pass an oAuth validator in the config

Adds Twitter validation support + OAuth 1 client

Support auth_token instead of access_token for twitter

Improves code coverage of OAuth

Adds validation of oauth provider structures

Better coverage of the OAuth spec

100% coverage of OAuth1.js

Adds passing auth_token_secret for Twitter auth.

Refactors auth validation methods to include authData parameter

- Adds ability to extens oauth validator through configuration
- Adds ability to extend oauth validator through external module (file or package)
- Adds more tests
- Adds tests to login with custom auth provider

Adds more tests for REST API

fixes twitter auth_token

f

src/index.js

@@ -105,7 +105,8 @@ function ParseServer(args) {
     fileKey: args.fileKey || 'invalid-file-key',
     facebookAppIds: args.facebookAppIds || [],
     filesController: filesController,
-    enableAnonymousUsers: args.enableAnonymousUsers || true
+    enableAnonymousUsers: args.enableAnonymousUsers || true,
+    oauth: args.oauth || {},
   };
 
   // To maintain compatibility. TODO: Remove in v2.1