fuduoduo 2a9e7255a7
fix(channels): keep Gateway calls off the environment proxy (#7877)
* fix(channels): keep Gateway calls off the environment proxy

* fix(channels): keep the aio_sandbox policy import lazy

Importing deerflow.community.aio_sandbox.backend at module scope executes
the package __init__, which eagerly imports AioSandbox, AioSandboxProvider
and both backends. That makes every ChannelManager import load the entire
sandbox provider stack even when a different sandbox is configured.

Mirror app/gateway/health.py::_make_provisioner_client: move the import into
a small _make_gateway_client helper and route both Gateway call sites through
it, so the URL policy stays lazy.

* fix(channels): keep the run client off the environment proxy

langgraph_sdk.get_client() builds httpx.AsyncHTTPTransport(retries=5) on an
httpx.AsyncClient that leaves trust_env at its default True and exposes no
transport/trust_env override, so ChannelManager._get_client() still sent
runs.wait submissions to a loopback Gateway through HTTP_PROXY. That is the hop
#7876 reports: the control-plane calls are fixed, the run submission is not.

Route the SDK client through _make_langgraph_client: loopback and private
Gateways get an explicit trust_env=False httpx.AsyncClient carrying the SDK's
own retries, timeout and User-Agent and handed to LangGraphClient, while
external Gateways keep the stock get_client() path.

Also move the URL policy out of the aio_sandbox package into
deerflow.utils.http_policy (control_plane_trust_env). Keeping the import lazy
did not help on its own: aio_sandbox/__init__ eagerly imports the provider
stack, so importing aio_sandbox.backend still loaded all of it. The neutral
module has no httpx or sandbox dependency, so manager.py and gateway/health.py
import it at module scope, and aio_sandbox.backend re-exports it as
sandbox_http_trust_env for the existing sandbox call sites.

* fix(channels): keep AGENTS.md under budget and align legacy CSRF test with new client

* style(sandbox): remove unused urlparse import

---------

Co-authored-by: jack12178 <jack12178@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-11-08 22:10:10 +08:00

41 lines
1.5 KiB
Python

"""Proxy policy shared by every control-plane HTTP client.
DeerFlow reaches its own Gateway, provisioner and sandboxes over the deployment
network, not the public internet. When operators export ``HTTP_PROXY`` for
outbound model/tool traffic, those hops must not be sent through the proxy: the
proxy answers with its own 502/504 while the target is perfectly healthy
(#3441, #7876).
This module is deliberately dependency-free (no ``httpx``, no sandbox imports)
so that ``app.channels.manager``, ``app.gateway.health`` and the sandbox
backends can all import the policy without dragging in the sandbox provider
stack.
"""
from __future__ import annotations
import ipaddress
from urllib.parse import urlparse
def control_plane_trust_env(url: str) -> bool:
"""Whether HTTP clients for *url* should inherit environment proxy settings.
Local Docker, DooD, Kubernetes and co-located Gateway endpoints are
control-plane connections, not internet traffic. External fully-qualified
hosts retain normal environment proxy behavior.
"""
try:
hostname = (urlparse(url).hostname or "").rstrip(".").lower()
except ValueError:
return True
if not hostname:
return True
if hostname == "localhost" or hostname.endswith(".localhost") or hostname.endswith(".docker.internal") or hostname.endswith(".containers.internal"):
return False
try:
address = ipaddress.ip_address(hostname)
except ValueError:
return "." in hostname
return not (address.is_loopback or address.is_private or address.is_link_local)