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-rw-r--r--synapse/api/auth.py12
-rw-r--r--synapse/api/errors.py1
2 files changed, 13 insertions, 0 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index e8112d5f05..976e0dd18b 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -64,6 +64,8 @@ class Auth(object):
         self.token_cache = LruCache(CACHE_SIZE_FACTOR * 10000)
         register_cache("cache", "token_cache", self.token_cache)
 
+        self._account_validity = hs.config.account_validity
+
     @defer.inlineCallbacks
     def check_from_context(self, room_version, event, context, do_sig_check=True):
         prev_state_ids = yield context.get_prev_state_ids(self.store)
@@ -226,6 +228,16 @@ class Auth(object):
             token_id = user_info["token_id"]
             is_guest = user_info["is_guest"]
 
+            # Deny the request if the user account has expired.
+            if self._account_validity.enabled:
+                expiration_ts = yield self.store.get_expiration_ts_for_user(user)
+                if self.clock.time_msec() >= expiration_ts:
+                    raise AuthError(
+                        403,
+                        "User account has expired",
+                        errcode=Codes.EXPIRED_ACCOUNT,
+                    )
+
             # device_id may not be present if get_user_by_access_token has been
             # stubbed out.
             device_id = user_info.get("device_id")
diff --git a/synapse/api/errors.py b/synapse/api/errors.py
index 0b464834ce..4c33450e7f 100644
--- a/synapse/api/errors.py
+++ b/synapse/api/errors.py
@@ -60,6 +60,7 @@ class Codes(object):
     UNSUPPORTED_ROOM_VERSION = "M_UNSUPPORTED_ROOM_VERSION"
     INCOMPATIBLE_ROOM_VERSION = "M_INCOMPATIBLE_ROOM_VERSION"
     WRONG_ROOM_KEYS_VERSION = "M_WRONG_ROOM_KEYS_VERSION"
+    EXPIRED_ACCOUNT = "ORG_MATRIX_EXPIRED_ACCOUNT"
 
 
 class CodeMessageException(RuntimeError):