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-rw-r--r--synapse/rest/client/v2_alpha/account.py18
-rw-r--r--synapse/rest/client/v2_alpha/auth.py33
-rw-r--r--synapse/rest/client/v2_alpha/register.py13
3 files changed, 22 insertions, 42 deletions
diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py
index 7f3445fe5d..3b50dc885f 100644
--- a/synapse/rest/client/v2_alpha/account.py
+++ b/synapse/rest/client/v2_alpha/account.py
@@ -20,9 +20,6 @@ from http import HTTPStatus
 from typing import TYPE_CHECKING
 from urllib.parse import urlparse
 
-if TYPE_CHECKING:
-    from synapse.app.homeserver import HomeServer
-
 from synapse.api.constants import LoginType
 from synapse.api.errors import (
     Codes,
@@ -31,6 +28,7 @@ from synapse.api.errors import (
     ThreepidValidationError,
 )
 from synapse.config.emailconfig import ThreepidBehaviour
+from synapse.handlers.ui_auth import UIAuthSessionDataConstants
 from synapse.http.server import finish_request, respond_with_html
 from synapse.http.servlet import (
     RestServlet,
@@ -46,6 +44,10 @@ from synapse.util.threepids import canonicalise_email, check_3pid_allowed
 
 from ._base import client_patterns, interactive_auth_handler
 
+if TYPE_CHECKING:
+    from synapse.app.homeserver import HomeServer
+
+
 logger = logging.getLogger(__name__)
 
 
@@ -200,7 +202,9 @@ class PasswordRestServlet(RestServlet):
                 if new_password:
                     password_hash = await self.auth_handler.hash(new_password)
                     await self.auth_handler.set_session_data(
-                        e.session_id, "password_hash", password_hash
+                        e.session_id,
+                        UIAuthSessionDataConstants.PASSWORD_HASH,
+                        password_hash,
                     )
                 raise
             user_id = requester.user.to_string()
@@ -222,7 +226,9 @@ class PasswordRestServlet(RestServlet):
                 if new_password:
                     password_hash = await self.auth_handler.hash(new_password)
                     await self.auth_handler.set_session_data(
-                        e.session_id, "password_hash", password_hash
+                        e.session_id,
+                        UIAuthSessionDataConstants.PASSWORD_HASH,
+                        password_hash,
                     )
                 raise
 
@@ -255,7 +261,7 @@ class PasswordRestServlet(RestServlet):
             password_hash = await self.auth_handler.hash(new_password)
         elif session_id is not None:
             password_hash = await self.auth_handler.get_session_data(
-                session_id, "password_hash", None
+                session_id, UIAuthSessionDataConstants.PASSWORD_HASH, None
             )
         else:
             # UI validation was skipped, but the request did not include a new
diff --git a/synapse/rest/client/v2_alpha/auth.py b/synapse/rest/client/v2_alpha/auth.py
index 149697fc23..75ece1c911 100644
--- a/synapse/rest/client/v2_alpha/auth.py
+++ b/synapse/rest/client/v2_alpha/auth.py
@@ -19,7 +19,6 @@ from typing import TYPE_CHECKING
 from synapse.api.constants import LoginType
 from synapse.api.errors import SynapseError
 from synapse.api.urls import CLIENT_API_PREFIX
-from synapse.handlers.sso import SsoIdentityProvider
 from synapse.http.server import respond_with_html
 from synapse.http.servlet import RestServlet, parse_string
 
@@ -46,22 +45,6 @@ class AuthRestServlet(RestServlet):
         self.auth = hs.get_auth()
         self.auth_handler = hs.get_auth_handler()
         self.registration_handler = hs.get_registration_handler()
-
-        # SSO configuration.
-        self._cas_enabled = hs.config.cas_enabled
-        if self._cas_enabled:
-            self._cas_handler = hs.get_cas_handler()
-            self._cas_server_url = hs.config.cas_server_url
-            self._cas_service_url = hs.config.cas_service_url
-        self._saml_enabled = hs.config.saml2_enabled
-        if self._saml_enabled:
-            self._saml_handler = hs.get_saml_handler()
-        self._oidc_enabled = hs.config.oidc_enabled
-        if self._oidc_enabled:
-            self._oidc_handler = hs.get_oidc_handler()
-            self._cas_server_url = hs.config.cas_server_url
-            self._cas_service_url = hs.config.cas_service_url
-
         self.recaptcha_template = hs.config.recaptcha_template
         self.terms_template = hs.config.terms_template
         self.success_template = hs.config.fallback_success_template
@@ -90,21 +73,7 @@ class AuthRestServlet(RestServlet):
         elif stagetype == LoginType.SSO:
             # Display a confirmation page which prompts the user to
             # re-authenticate with their SSO provider.
-
-            if self._cas_enabled:
-                sso_auth_provider = self._cas_handler  # type: SsoIdentityProvider
-            elif self._saml_enabled:
-                sso_auth_provider = self._saml_handler
-            elif self._oidc_enabled:
-                sso_auth_provider = self._oidc_handler
-            else:
-                raise SynapseError(400, "Homeserver not configured for SSO.")
-
-            sso_redirect_url = await sso_auth_provider.handle_redirect_request(
-                request, None, session
-            )
-
-            html = await self.auth_handler.start_sso_ui_auth(sso_redirect_url, session)
+            html = await self.auth_handler.start_sso_ui_auth(request, session)
 
         else:
             raise SynapseError(404, "Unknown auth stage type")
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index 35e646390e..b093183e79 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -38,6 +38,7 @@ from synapse.config.ratelimiting import FederationRateLimitConfig
 from synapse.config.registration import RegistrationConfig
 from synapse.config.server import is_threepid_reserved
 from synapse.handlers.auth import AuthHandler
+from synapse.handlers.ui_auth import UIAuthSessionDataConstants
 from synapse.http.server import finish_request, respond_with_html
 from synapse.http.servlet import (
     RestServlet,
@@ -494,11 +495,11 @@ class RegisterRestServlet(RestServlet):
             # user here. We carry on and go through the auth checks though,
             # for paranoia.
             registered_user_id = await self.auth_handler.get_session_data(
-                session_id, "registered_user_id", None
+                session_id, UIAuthSessionDataConstants.REGISTERED_USER_ID, None
             )
             # Extract the previously-hashed password from the session.
             password_hash = await self.auth_handler.get_session_data(
-                session_id, "password_hash", None
+                session_id, UIAuthSessionDataConstants.PASSWORD_HASH, None
             )
 
         # Ensure that the username is valid.
@@ -528,7 +529,9 @@ class RegisterRestServlet(RestServlet):
             if not password_hash and password:
                 password_hash = await self.auth_handler.hash(password)
                 await self.auth_handler.set_session_data(
-                    e.session_id, "password_hash", password_hash
+                    e.session_id,
+                    UIAuthSessionDataConstants.PASSWORD_HASH,
+                    password_hash,
                 )
             raise
 
@@ -629,7 +632,9 @@ class RegisterRestServlet(RestServlet):
             # Remember that the user account has been registered (and the user
             # ID it was registered with, since it might not have been specified).
             await self.auth_handler.set_session_data(
-                session_id, "registered_user_id", registered_user_id
+                session_id,
+                UIAuthSessionDataConstants.REGISTERED_USER_ID,
+                registered_user_id,
             )
 
             registered = True