aiohttp.ClientSession defaults to trust_env=False, which silently ignores
HTTP_PROXY, HTTPS_PROXY, and ALL_PROXY environment variables. Users behind
a corporate or network proxy cannot reach external APIs on any of these
platforms — all outbound requests fail with connection errors.
Symmetric with wecom.py (line 276), weixin.py (lines 1055/1268/1274), and
matrix.py (no-proxy path) which already set this flag. Complements the
open LINE fix (#26635) with the remaining gateway and plugin adapters.
Changed:
- gateway/platforms/sms.py: persistent Twilio session (connect) + fallback
session (send) — both hit https://api.twilio.com
- gateway/platforms/slack.py: ephemeral response_url POST session —
hits https://hooks.slack.com/... callback URLs
- plugins/platforms/teams/adapter.py: standalone send session —
hits login.microsoftonline.com (token) + Bot Framework service URL
- plugins/platforms/google_chat/adapter.py: standalone send session —
hits https://chat.googleapis.com/v1/...
WhatsApp sessions are excluded: they connect to http://127.0.0.1:{port}
(local bridge) and must not be routed through a system proxy.
c1ae18ee81