Fix error in `get_user_ip_and_agents` when fetching from the database (#10968)

changelog.d/10968.bugfix

@@ -0,0 +1 @@
+Fix `/admin/whois/{user_id}` endpoint, which was broken in v1.44.0rc1.

synapse/storage/databases/main/client_ips.py

@@ -591,8 +591,8 @@ class ClientIpStore(ClientIpWorkerStore):
         )
 
         results.update(
-            ((row["access_token"], row["ip"]), (row["user_agent"], row["last_seen"]))
-            for row in rows
+            ((access_token, ip), (user_agent, last_seen))
+            for access_token, ip, user_agent, last_seen in rows
         )
         return [
             {

tests/storage/test_client_ips.py

@@ -15,9 +15,12 @@
 
 from unittest.mock import Mock
 
+from parameterized import parameterized
+
 import synapse.rest.admin
 from synapse.http.site import XForwardedForRequest
 from synapse.rest.client import login
+from synapse.types import UserID
 
 from tests import unittest
 from tests.server import make_request
@@ -143,6 +146,37 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase):
             ],
         )
 
+    @parameterized.expand([(False,), (True,)])
+    def test_get_user_ip_and_agents(self, after_persisting: bool):
+        """Test `get_user_ip_and_agents` for persisted and unpersisted data"""
+        self.reactor.advance(12345678)
+
+        user_id = "@user:id"
+        user = UserID.from_string(user_id)
+
+        # Insert a user IP
+        self.get_success(
+            self.store.insert_client_ip(
+                user_id, "access_token", "ip", "user_agent", "MY_DEVICE"
+            )
+        )
+
+        if after_persisting:
+            # Trigger the storage loop
+            self.reactor.advance(10)
+
+        self.assertEqual(
+            self.get_success(self.store.get_user_ip_and_agents(user)),
+            [
+                {
+                    "access_token": "access_token",
+                    "ip": "ip",
+                    "user_agent": "user_agent",
+                    "last_seen": 12345678000,
+                },
+            ],
+        )
+
     @override_config({"limit_usage_by_mau": False, "max_mau_value": 50})
     def test_disabled_monthly_active_user(self):
         user_id = "@user:server"