fix: update connect URL to target correct geo

packages/apps/src/microsoft_teams/apps/options.py

@@ -119,11 +119,11 @@ class AppOptions(TypedDict, total=False):
     socket_mode: Optional[Union[bool, SocketModeOptions]]
     """Experimental: receive activities over an outbound WebSocket instead of an inbound HTTPS endpoint.
 
-    ``True`` enables it with defaults; pass a ``SocketModeOptions`` to configure
-    ``negotiate_base_url`` and ``geos``. The bot dials the Teams service, so no public endpoint or dev tunnel is
-    needed — but HTTP-only features (``app.function()``, tabs, OAuth redirect routes)
-    have no listener to serve them. Mutually exclusive with ``http_server_adapter``,
-    and supported only in the public cloud.
+    ``True`` enables it with defaults; pass a ``SocketModeOptions`` to select geo
+    regions. The bot dials the Teams service, so no public endpoint
+    or dev tunnel is needed — but HTTP-only features (``app.function()``, tabs, OAuth
+    redirect routes) have no listener to serve them. Mutually exclusive with
+    ``http_server_adapter``, and supported only in the public cloud.
 
     Socket Mode is currently only available for new bots.
     This API is in preview and may change in the future; recommended only for development.

packages/apps/src/microsoft_teams/apps/socket_mode/adapter.py

@@ -25,10 +25,9 @@
 from .envelope import build_reply_frame, is_invoke_envelope, read_envelope_activity
 from .transport import (
     DEFAULT_GEOS,
-    DEFAULT_SOCKET_MODE_NEGOTIATE_BASE_URL,
     SocketModeTransport,
     SocketModeTransportOptions,
-    build_negotiate_url,
+    resolve_geos,
 )
 from .types import (
     SOCKET_MODE_PROTOCOL_VERSION,
@@ -79,19 +78,13 @@ class SocketModeReconnectedEvent:
 @dataclass(frozen=True)
 class SocketModeOptions:
     """
-    Preview configuration for the Socket Mode negotiate URL and geographies; may change in the future.
+    Preview configuration for Socket Mode geographies; may change in the future.
 
     WebSocket is only recommended for use when developing agents.
     Socket Mode is currently only available for new bots.
     Diagnostic: ExperimentalTeamsSocketMode
     """
 
-    negotiate_base_url: str = DEFAULT_SOCKET_MODE_NEGOTIATE_BASE_URL
-    """
-    Service host used to negotiate the connection. Defaults to ``https://botapi.skype.com``.
-    Override this to target a different Teams backend service ring.
-    """
-
     geos: Sequence[str] = DEFAULT_GEOS
     """
     Geographies to connect, one independent socket each. Defaults to ``("amer", "emea", "apac")``;
@@ -100,10 +93,7 @@ class SocketModeOptions:
     """
 
     def to_transport_options(self) -> SocketModeTransportOptions:
-        return SocketModeTransportOptions(
-            negotiate_base_url=self.negotiate_base_url,
-            geos=tuple(self.geos),
-        )
+        return SocketModeTransportOptions(geos=tuple(self.geos))
 
 
 @dataclass(frozen=True)
@@ -196,13 +186,7 @@ def geo_statuses(self) -> tuple[tuple[str, SocketModeStatus], ...]:
     @property
     def geo_list(self) -> tuple[str, ...]:
         """The geos this adapter connects to."""
-        return tuple(self.options.geos)
-
-    @property
-    def negotiate_url(self) -> str:
-        """Resolved negotiate URL for the first geo. Each geo dials its own."""
-        geos = self.geo_list
-        return build_negotiate_url(self.options.negotiate_base_url, geos[0] if geos else "")
+        return resolve_geos(self.options.geos)
 
     def register_route(self, method: HttpMethod, path: str, handler: HttpRouteHandler) -> None:
         """

packages/apps/src/microsoft_teams/apps/socket_mode/transport.py

@@ -18,7 +18,6 @@
 import random
 from dataclasses import dataclass
 from typing import Awaitable, Callable, Optional, Sequence
-from urllib.parse import quote
 
 import httpx2
 
@@ -37,11 +36,11 @@
     WebSocketFactory,
 )
 
-DEFAULT_SOCKET_MODE_NEGOTIATE_BASE_URL = "https://botapi.skype.com"
-"""Default service host used to negotiate the connection."""
+SOCKET_MODE_NEGOTIATE_HOST = "botapi.skype.com"
+"""Service-owned host used to negotiate Socket Mode connections."""
 
 SOCKET_MODE_NEGOTIATE_PATH = "/v3/websockets/connect"
-"""Negotiate route appended to the base URL: ``POST {base}/{geo}/v3/websockets/connect``."""
+"""Negotiate route appended to the geo-specific service host."""
 
 DEFAULT_GEOS = ("amer", "emea", "apac")
 """Geographies connected by default, one independent socket each."""
@@ -73,12 +72,10 @@ class SocketModeTransportOptions:
     (the TypeScript SDK uses milliseconds with an ``Ms`` suffix).
     """
 
-    negotiate_base_url: str = DEFAULT_SOCKET_MODE_NEGOTIATE_BASE_URL
     geos: Sequence[str] = DEFAULT_GEOS
     """
     Every listed geo must connect for ``start()`` to succeed; each is then supervised
-    independently, so one geo dropping never affects the others. Pass ``("",)`` to
-    connect to the base URL with no geo segment.
+    independently, so one geo dropping never affects the others.
     """
 
     readiness_timeout: float = 30.0
@@ -188,18 +185,12 @@ async def start(self) -> None:
                 return
             if self._options.startup_timeout < 0:
                 raise ValueError("Socket Mode startup_timeout must be non-negative")
-            geos = tuple(self._options.geos)
-            if not geos:
-                raise ValueError("Socket Mode geos must contain at least one entry")
-            if len(set(geos)) != len(geos):
-                raise ValueError("Socket Mode geos must not contain duplicates")
+            geos = resolve_geos(self._options.geos)
+            negotiate_urls = tuple((geo, build_negotiate_url(geo)) for geo in geos)
 
             self._stop_event = asyncio.Event()
             self._lifecycle = SocketModeStatus.CONNECTING
-            self._geos = [
-                GeoSocket(self, geo, build_negotiate_url(self._options.negotiate_base_url, geo), self._logger)
-                for geo in geos
-            ]
+            self._geos = [GeoSocket(self, geo, negotiate_url, self._logger) for geo, negotiate_url in negotiate_urls]
             tasks = [
                 asyncio.create_task(geo.start_initial(), name=f"teams-socket-mode-start-{geo or 'default'}")
                 for geo in self._geos
@@ -343,9 +334,19 @@ def _call_lifecycle(self, callback: Callable[..., None], *args: object) -> None:
             self._logger.warning("Socket Mode lifecycle callback failed", exc_info=error)
 
 
-def build_negotiate_url(base_url: str, geo: str) -> str:
-    base = base_url.rstrip("/")
-    segment = geo.strip().strip("/")
-    if segment:
-        return f"{base}/{quote(segment, safe='')}{SOCKET_MODE_NEGOTIATE_PATH}"
-    return f"{base}{SOCKET_MODE_NEGOTIATE_PATH}"
+def resolve_geos(geos: Sequence[str]) -> tuple[str, ...]:
+    configured_geos = tuple(geos)
+    if not configured_geos:
+        return DEFAULT_GEOS
+    if "" in configured_geos:
+        raise ValueError("Socket Mode geos must not contain an empty string")
+    if len({geo.lower() for geo in configured_geos}) != len(configured_geos):
+        raise ValueError("Socket Mode geos must not contain duplicates")
+    return configured_geos
+
+
+def build_negotiate_url(geo: str) -> str:
+    if geo == "":
+        raise ValueError("Socket Mode geo must not be an empty string")
+
+    return f"https://{geo}.{SOCKET_MODE_NEGOTIATE_HOST}{SOCKET_MODE_NEGOTIATE_PATH}"

packages/apps/tests/test_socket_mode_adapter.py

@@ -62,7 +62,7 @@ def make_adapter(
     pipeline: Optional[RecordingPipeline] = None,
     client_id: Optional[str] = "bot-client-id",
     on_error: Any = None,
-    geos: tuple[str, ...] = ("",),
+    geos: tuple[str, ...] = ("amer",),
 ) -> tuple[SocketModeAdapter, RecordingPipeline]:
     pipeline = pipeline or RecordingPipeline()
     adapter = SocketModeAdapter(
@@ -377,9 +377,25 @@ async def test_status_and_geo_statuses_track_the_transport():
     assert adapter.status == SocketModeStatus.STOPPED
 
 
-def test_negotiate_url_resolves_the_first_geo():
-    adapter, _ = make_adapter(geos=("amer", "emea"))
-    assert adapter.negotiate_url == "https://botapi.skype.com/amer/v3/websockets/connect"
+def test_empty_geo_sequence_uses_defaults():
+    adapter, _ = make_adapter(geos=())
+
+    assert adapter.geo_list == ("amer", "emea", "apac")
+
+
+def test_empty_string_geo_is_rejected():
+    adapter, _ = make_adapter(geos=("amer", ""))
+
+    with pytest.raises(ValueError, match="must not contain an empty string"):
+        _ = adapter.geo_list
+
+
+@pytest.mark.parametrize("geos", [("amer", "amer"), ("amer", "AMER")])
+def test_duplicate_geos_are_rejected(geos: tuple[str, ...]):
+    adapter, _ = make_adapter(geos=geos)
+
+    with pytest.raises(ValueError, match="must not contain duplicates"):
+        _ = adapter.geo_list
 
 
 def test_messaging_route_is_accepted_and_other_routes_warn(caplog: pytest.LogCaptureFixture):
@@ -404,13 +420,18 @@ def test_serve_static_warns(caplog: pytest.LogCaptureFixture):
     assert "serve_static" in caplog.text
 
 
-def test_options_expose_only_negotiate_base_url_and_geos():
-    expected = {"negotiate_base_url", "geos"}
+def test_options_expose_only_geos():
+    expected = {"geos"}
 
     assert {field.name for field in fields(SocketModeOptions)} == expected
     assert set(inspect.signature(SocketModeOptions).parameters) == expected
 
 
+def test_options_reject_negotiate_base_url_override():
+    with pytest.raises(TypeError, match="negotiate_base_url"):
+        SocketModeOptions(negotiate_base_url="https://botapi.example")  # pyright: ignore[reportCallIssue]
+
+
 @pytest.mark.parametrize(
     "name",
     ["readiness_timeout", "startup_timeout", "reconnect_delays", "keep_alive_interval", "server_timeout"],
@@ -430,7 +451,6 @@ def test_options_defaults_preserve_transport_policy():
     options = SocketModeOptions()
     transport_options = options.to_transport_options()
 
-    assert transport_options.negotiate_base_url == "https://botapi.skype.com"
     assert transport_options.geos == ("amer", "emea", "apac")
     assert transport_options.readiness_timeout == 30
     assert transport_options.startup_timeout == 30
@@ -441,14 +461,10 @@ def test_options_defaults_preserve_transport_policy():
 
 def test_options_map_onto_transport_options():
     geos = ["amer"]
-    options = SocketModeOptions(
-        negotiate_base_url="https://botapi.example",
-        geos=geos,
-    )
+    options = SocketModeOptions(geos=geos)
     transport_options = options.to_transport_options()
     geos.append("emea")
 
-    assert transport_options.negotiate_base_url == "https://botapi.example"
     assert transport_options.geos == ("amer",)
 
 
@@ -532,12 +548,11 @@ def test_app_socket_mode_options_are_honoured():
         client_id="client",
         client_secret="secret",
         tenant_id="tenant",
-        socket_mode=SocketModeOptions(negotiate_base_url="https://botapi.example", geos=("amer",)),
+        socket_mode=SocketModeOptions(geos=("amer",)),
     )
 
     assert app.socket_mode is not None
     assert app.socket_mode.geo_list == ("amer",)
-    assert app.socket_mode.negotiate_url == "https://botapi.example/amer/v3/websockets/connect"
 
 
 def test_app_rejects_socket_mode_with_a_custom_http_adapter():

packages/apps/tests/test_socket_mode_connection.py

@@ -46,7 +46,11 @@ async def close(self) -> None:
 
 def make_http_client(*, hub_url: str = "https://signalr.example/client/?hub=teams") -> httpx2.AsyncClient:
     def handler(request: httpx2.Request) -> httpx2.Response:
-        if request.url.host == "botapi.example":
+        if (
+            request.url.host == "botapi.example"
+            or request.url.host.endswith(".botapi.example")
+            or request.url.host.endswith(".botapi.skype.com")
+        ):
             return httpx2.Response(
                 200,
                 json={"url": hub_url, "accessToken": "signalr-token", "expiresIn": 120},