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

bin/parse-server

@@ -30,6 +30,11 @@ if (process.env.PARSE_SERVER_OPTIONS) {
 		facebookAppIds = facebookAppIds.split(",");
 		options.facebookAppIds = facebookAppIds;
 	}
+
+	var oauth = process.env.PARSE_SERVER_OAUTH_PROVIDERS;
+	if (oauth) {
+		options.oauth = JSON.parse(oauth);
+	};
 }
 
 var mountPath = process.env.PARSE_SERVER_MOUNT_PATH || "/";