add parameter ignored_exception_types to the tornado client to allow ignore specific exceptions

raven/contrib/tornado/__init__.py

@@ -19,6 +19,7 @@ class AsyncSentryClient(Client):
     """
     def __init__(self, *args, **kwargs):
         self.validate_cert = kwargs.pop('validate_cert', True)
+        self.ignored_exception_types = kwargs.pop('ignored_exception_types', [])
         super(AsyncSentryClient, self).__init__(*args, **kwargs)
 
     def capture(self, *args, **kwargs):
@@ -225,7 +226,11 @@ def log_exception(self, typ, value, tb):
         log_exception() is added in Tornado v3.1.
         """
         rv = super(SentryMixin, self).log_exception(typ, value, tb)
-        self.captureException(exc_info=(typ, value, tb))
+
+        client = self.get_sentry_client()
+        if not any(typ is ignored_type for ignored_type in client.ignored_exception_types):
+            self.captureException(exc_info=(typ, value, tb))
+
         return rv
 
     def send_error(self, status_code=500, **kwargs):
@@ -236,6 +241,9 @@ def send_error(self, status_code=500, **kwargs):
             return super(SentryMixin, self).send_error(status_code, **kwargs)
         else:
             rv = super(SentryMixin, self).send_error(status_code, **kwargs)
-            if 500 <= status_code <= 599:
-                self.captureException(exc_info=kwargs.get('exc_info'))
+            exc_info = kwargs.get('exc_info')
+            if 500 <= status_code <= 599 and exc_info:
+                client = self.get_sentry_client()
+                if not any(exc_info[0] is ignored_type for ignored_type in client.ignored_exception_types):
+                    self.captureException(exc_info=exc_info)
             return rv

tests/contrib/tornado/tests.py

@@ -36,6 +36,14 @@ def get(self):
         raise Exception("Oops")
 
 
+class SendIgnoredCustomErrorTestHandler(SentryMixin, web.RequestHandler):
+    class CustomError(Exception):
+        pass
+
+    def get(self):
+        raise self.CustomError("A Custom Error!")
+
+
 class SendErrorAsyncHandler(SentryMixin, web.RequestHandler):
     @web.asynchronous
     @gen.engine
@@ -212,3 +220,21 @@ def test_send_error_handler_async(self, send):
 
         user_data = kwargs['user']
         self.assertEqual(user_data['is_authenticated'], False)
+
+
+class TornadoAsyncClientWithIgnoredExceptionsTestCase(testing.AsyncHTTPTestCase):
+    def get_app(self):
+        app = web.Application([
+            web.url(r'/an-ignored-error', SendIgnoredCustomErrorTestHandler),
+        ])
+        app.sentry_client = AsyncSentryClient(
+            'http://public_key:secret_key@host:9000/project',
+            ignored_exception_types=[SendIgnoredCustomErrorTestHandler.CustomError],
+        )
+        return app
+
+    @patch('raven.contrib.tornado.AsyncSentryClient.send')
+    def test_send_an_ignored_error(self, send):
+        response = self.fetch('/an-ignored-error?qs=qs')
+        self.assertEqual(response.code, 500)
+        self.assertEqual(send.call_count, 0)