Further registration refactoring

* `RegistrationHandler.appservice_register` no longer issues an access token:
  instead it is left for the caller to do it. (There are two of these, one in
  `synapse/rest/client/v1/register.py`, which now simply calls
  `AuthHandler.issue_access_token`, and the other in
  `synapse/rest/client/v2_alpha/register.py`, which is covered below).

* In `synapse/rest/client/v2_alpha/register.py`, move the generation of
  access_tokens into `_create_registration_details`. This means that the normal
  flow no longer needs to call `AuthHandler.issue_access_token`; the
  shared-secret flow can tell `RegistrationHandler.register` not to generate a
  token; and the appservice flow continues to work despite the above change.

1 files changed, 3 insertions, 1 deletions

diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py
index 8e1f1b7845..28b59952c3 100644
--- a/synapse/rest/client/v1/register.py
+++ b/synapse/rest/client/v1/register.py
@@ -60,6 +60,7 @@ class RegisterRestServlet(ClientV1RestServlet):
         # TODO: persistent storage
         self.sessions = {}
         self.enable_registration = hs.config.enable_registration
+        self.auth_handler = hs.get_auth_handler()
 
     def on_GET(self, request):
         if self.hs.config.enable_registration_captcha:
@@ -299,9 +300,10 @@ class RegisterRestServlet(ClientV1RestServlet):
         user_localpart = register_json["user"].encode("utf-8")
 
         handler = self.handlers.registration_handler
-        (user_id, token) = yield handler.appservice_register(
+        user_id = yield handler.appservice_register(
             user_localpart, as_token
         )
+        token = yield self.auth_handler.issue_access_token(user_id)
         self._remove_session(session)
         defer.returnValue({
             "user_id": user_id,