Refactor the user-interactive auth handling (#6105)

Pull the checkers out to their own classes, rather than having them lost in a
massive 1000-line class which does everything.

This is also preparation for some more intelligent advertising of flows, as per #6100

1 files changed, 16 insertions, 10 deletions

diff --git a/tests/rest/client/v2_alpha/test_auth.py b/tests/rest/client/v2_alpha/test_auth.py
index b9ef46e8fb..b6df1396ad 100644
--- a/tests/rest/client/v2_alpha/test_auth.py
+++ b/tests/rest/client/v2_alpha/test_auth.py
@@ -18,11 +18,22 @@ from twisted.internet.defer import succeed
 
 import synapse.rest.admin
 from synapse.api.constants import LoginType
+from synapse.handlers.ui_auth.checkers import UserInteractiveAuthChecker
 from synapse.rest.client.v2_alpha import auth, register
 
 from tests import unittest
 
 
+class DummyRecaptchaChecker(UserInteractiveAuthChecker):
+    def __init__(self, hs):
+        super().__init__(hs)
+        self.recaptcha_attempts = []
+
+    def check_auth(self, authdict, clientip):
+        self.recaptcha_attempts.append((authdict, clientip))
+        return succeed(True)
+
+
 class FallbackAuthTests(unittest.HomeserverTestCase):
 
     servlets = [
@@ -44,15 +55,9 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
         return hs
 
     def prepare(self, reactor, clock, hs):
+        self.recaptcha_checker = DummyRecaptchaChecker(hs)
         auth_handler = hs.get_auth_handler()
-
-        self.recaptcha_attempts = []
-
-        def _recaptcha(authdict, clientip):
-            self.recaptcha_attempts.append((authdict, clientip))
-            return succeed(True)
-
-        auth_handler.checkers[LoginType.RECAPTCHA] = _recaptcha
+        auth_handler.checkers[LoginType.RECAPTCHA] = self.recaptcha_checker
 
     @unittest.INFO
     def test_fallback_captcha(self):
@@ -89,8 +94,9 @@ class FallbackAuthTests(unittest.HomeserverTestCase):
         self.assertEqual(request.code, 200)
 
         # The recaptcha handler is called with the response given
-        self.assertEqual(len(self.recaptcha_attempts), 1)
-        self.assertEqual(self.recaptcha_attempts[0][0]["response"], "a")
+        attempts = self.recaptcha_checker.recaptcha_attempts
+        self.assertEqual(len(attempts), 1)
+        self.assertEqual(attempts[0][0]["response"], "a")
 
         # also complete the dummy auth
         request, channel = self.make_request(