fix(teams): fall back to default port on invalid port config

plugins/platforms/teams/adapter.py

@@ -116,6 +116,13 @@ def _parse_bool(value: Any, *, default: bool = False) -> bool:
     return default
 
 
+def _coerce_port(value: Any, *, default: int = _DEFAULT_PORT) -> int:
+    try:
+        return int(value)
+    except (TypeError, ValueError):
+        return default
+
+
 class _StaticAccessTokenProvider:
     """Minimal token-provider shim so outbound Graph delivery can reuse the shared client."""
 
@@ -623,7 +630,9 @@ class TeamsAdapter(BasePlatformAdapter):
         self._client_id = extra.get("client_id") or os.getenv("TEAMS_CLIENT_ID", "")
         self._client_secret = extra.get("client_secret") or os.getenv("TEAMS_CLIENT_SECRET", "")
         self._tenant_id = extra.get("tenant_id") or os.getenv("TEAMS_TENANT_ID", "")
-        self._port = int(extra.get("port") or os.getenv("TEAMS_PORT", str(_DEFAULT_PORT)))
+        self._port = _coerce_port(
+            extra.get("port") or os.getenv("TEAMS_PORT", str(_DEFAULT_PORT))
+        )
         self._app: Optional["App"] = None
         self._runner: Optional["web.AppRunner"] = None
         self._dedup = MessageDeduplicator(max_size=1000)

tests/gateway/test_teams.py

@@ -283,6 +283,17 @@ class TestTeamsAdapterInit:
         adapter = TeamsAdapter(_make_config(client_id="id", client_secret="secret", tenant_id="tenant"))
         assert adapter._port == 5000
 
+    def test_invalid_port_from_extra_falls_back_to_default(self):
+        adapter = TeamsAdapter(
+            _make_config(client_id="id", client_secret="secret", tenant_id="tenant", port="abc")
+        )
+        assert adapter._port == 3978
+
+    def test_invalid_port_from_env_falls_back_to_default(self, monkeypatch):
+        monkeypatch.setenv("TEAMS_PORT", "abc")
+        adapter = TeamsAdapter(_make_config(client_id="id", client_secret="secret", tenant_id="tenant"))
+        assert adapter._port == 3978
+
     def test_platform_value(self):
         adapter = TeamsAdapter(_make_config(client_id="id", client_secret="secret", tenant_id="tenant"))
         assert adapter.platform.value == "teams"