Include oauthlib module

lib/oauthlib/oauth2/rfc6749/endpoints/base.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+"""
+oauthlib.oauth2.rfc6749
+~~~~~~~~~~~~~~~~~~~~~~~
+
+This module is an implementation of various logic needed
+for consuming and providing OAuth 2.0 RFC6749.
+"""
+from __future__ import absolute_import, unicode_literals
+
+import functools
+import logging
+
+from ..errors import TemporarilyUnavailableError, ServerError
+from ..errors import FatalClientError, OAuth2Error
+
+log = logging.getLogger(__name__)
+
+
+class BaseEndpoint(object):
+
+    def __init__(self):
+        self._available = True
+        self._catch_errors = False
+
+    @property
+    def available(self):
+        return self._available
+
+    @available.setter
+    def available(self, available):
+        self._available = available
+
+    @property
+    def catch_errors(self):
+        return self._catch_errors
+
+    @catch_errors.setter
+    def catch_errors(self, catch_errors):
+        self._catch_errors = catch_errors
+
+
+def catch_errors_and_unavailability(f):
+    @functools.wraps(f)
+    def wrapper(endpoint, uri, *args, **kwargs):
+        if not endpoint.available:
+            e = TemporarilyUnavailableError()
+            log.info('Endpoint unavailable, ignoring request %s.' % uri)
+            return {}, e.json, 503
+
+        if endpoint.catch_errors:
+            try:
+                return f(endpoint, uri, *args, **kwargs)
+            except OAuth2Error:
+                raise
+            except FatalClientError:
+                raise
+            except Exception as e:
+                error = ServerError()
+                log.warning(
+                    'Exception caught while processing request, %s.' % e)
+                return {}, error.json, 500
+        else:
+            return f(endpoint, uri, *args, **kwargs)
+    return wrapper