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-rw-r--r--synapse/storage/registration.py34
-rw-r--r--synapse/storage/schema/delta/54/account_validity.sql20
2 files changed, 54 insertions, 0 deletions
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index e30b86c346..643f7a3808 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -86,6 +86,26 @@ class RegistrationWorkerStore(SQLBaseStore):
             "get_user_by_access_token", self._query_for_auth, token
         )
 
+    @cachedInlineCallbacks()
+    def get_expiration_ts_for_user(self, user):
+        """Get the expiration timestamp for the account bearing a given user ID.
+
+        Args:
+            user (str): The ID of the user.
+        Returns:
+            defer.Deferred: None, if the account has no expiration timestamp,
+            otherwise int representation of the timestamp (as a number of
+            milliseconds since epoch).
+        """
+        res = yield self._simple_select_one_onecol(
+            table="account_validity",
+            keyvalues={"user_id": user.to_string()},
+            retcol="expiration_ts_ms",
+            allow_none=True,
+            desc="get_expiration_date_for_user",
+        )
+        defer.returnValue(res)
+
     @defer.inlineCallbacks
     def is_server_admin(self, user):
         res = yield self._simple_select_one_onecol(
@@ -425,6 +445,8 @@ class RegistrationStore(
             columns=["creation_ts"],
         )
 
+        self._account_validity = hs.config.account_validity
+
         # we no longer use refresh tokens, but it's possible that some people
         # might have a background update queued to build this index. Just
         # clear the background update.
@@ -561,6 +583,18 @@ class RegistrationStore(
                         "user_type": user_type,
                     },
                 )
+
+            if self._account_validity.enabled:
+                now_ms = self.clock.time_msec()
+                expiration_ts = now_ms + self._account_validity.period
+                self._simple_insert_txn(
+                    txn,
+                    "account_validity",
+                    values={
+                        "user_id": user_id,
+                        "expiration_ts_ms": expiration_ts,
+                    }
+                )
         except self.database_engine.module.IntegrityError:
             raise StoreError(400, "User ID already taken.", errcode=Codes.USER_IN_USE)
 
diff --git a/synapse/storage/schema/delta/54/account_validity.sql b/synapse/storage/schema/delta/54/account_validity.sql
new file mode 100644
index 0000000000..57249262d7
--- /dev/null
+++ b/synapse/storage/schema/delta/54/account_validity.sql
@@ -0,0 +1,20 @@
+/* Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+-- Track what users are in public rooms.
+CREATE TABLE IF NOT EXISTS account_validity (
+    user_id TEXT PRIMARY KEY,
+    expiration_ts_ms BIGINT NOT NULL
+);