Updated handler.py and test_hanlder.py

tests/test_handler.py

 import unittest
-import sys
 
 from tornado.httputil import HTTPServerRequest
 from handler import MixinHandler
@@ -7,33 +6,23 @@ from handler import MixinHandler
 
 class TestMixinHandler(unittest.TestCase):
 
-    def test_get_real_client_addr_without_nginx_config(self):
+    def test_get_real_client_addr(self):
         handler = MixinHandler()
         handler.request = HTTPServerRequest(uri='/')
         self.assertIsNone(handler.get_real_client_addr())
 
-    def test_get_real_client_addr_with_correct_nginx_config(self):
-        handler = MixinHandler()
-        handler.request = HTTPServerRequest(uri='/')
-
         ip = '127.0.0.1'
         handler.request.headers.add('X-Real-Ip', ip)
-        handler.request.headers.add('X-Real-Port', '12345')
-        self.assertEqual(handler.get_real_client_addr(), (ip, 12345))
+        self.assertEqual(handler.get_real_client_addr(), False)
 
-    @unittest.skipIf(sys.version_info < (3,),
-                     reason='assertLogs not supported in Python 2')
-    def test_get_real_client_addr_with_bad_nginx_config(self):
-        handler = MixinHandler()
-        handler.request = HTTPServerRequest(uri='/')
+        handler.request.headers.add('X-Real-Port', '12345x')
+        self.assertEqual(handler.get_real_client_addr(), False)
 
-        ip = '127.0.0.1'
-        handler.request.headers.add('X-Real-Ip', ip)
-        with self.assertLogs() as cm:
-            handler.get_real_client_addr()
-        self.assertEqual(cm.output, ['WARNING:root:Bad nginx configuration.'])
+        handler.request.headers.update({'X-Real-Port': '12345'})
+        self.assertEqual(handler.get_real_client_addr(), (ip, 12345))
 
-        handler.request.headers.add('X-Real-Port', '12345x')
-        with self.assertLogs() as cm:
-            handler.get_real_client_addr()
-        self.assertEqual(cm.output, ['WARNING:root:Bad nginx configuration.'])
+        handler.request.headers.update({'X-Real-ip': None})
+        self.assertEqual(handler.get_real_client_addr(), False)
+
+        handler.request.headers.update({'X-Real-Port': '12345x'})
+        self.assertEqual(handler.get_real_client_addr(), False)

webssh/handler.py

@@ -35,7 +35,9 @@ class MixinHandler(object):
         else:
             if ip:  # does not validate ip and port here
                 return (ip, port)
+
         logging.warn('Bad nginx configuration.')
+        return False
 
 
 class IndexHandler(MixinHandler, tornado.web.RequestHandler):