fix(proxy): route Codex Live voice through a dedicated /v1/live transport (#2709)

## Description

Codex Live traffic currently reaches an unrouted WebSocket path and
receives HTTP 403 before the proxy can contact an upstream.

Closes #2653

## Type of Change

- [x] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature
- [ ] Breaking change
- [ ] Documentation update
- [ ] Performance improvement
- [ ] Code refactoring

## Changes Made

- Add a dedicated `/v1/live` WebSocket route family and transparent
transport.
- Preserve subscription auth routing, account headers, origin policy,
subprotocols, and text/binary frame bytes.
- Propagate WebSocket close metadata and cancel relay tasks
deterministically on every exit.
- Keep Live outside the Responses parser, compression, memory injection,
and Responses beta-header path.
- Keep generic HTTP paths on the existing catch-all and document the
Live aliases plus the derived-path override.
- Add real-app route, relay, and loopback integration proof.
- Add coverage for authorization fallback, defensive receive events, and
cancellation cleanup in the Live relay.

## Testing

The focused Live handshake, preservation suites, Ruff, format, and diff
checks pass. The base comparison, Codex Desktop owner round trip, and
ChatGPT backend acceptance of the derived `/backend-api/codex/live` path
remain untested.

- [x] Unit tests pass (`pytest`)
- [x] Linting passes (`ruff check`)
- [x] Type checking passes (`mypy headroom --ignore-missing-imports`)
- [x] New tests added for the reported failure
- [x] Manual loopback testing performed

### Test Output

```text
uv run pytest tests/test_codex_live.py -q: 6 passed, 7 warnings in 11.03s
uv run pytest tests/test_provider_proxy_routes.py tests/test_proxy_codex_route_aliases.py tests/test_provider_codex_endpoints.py tests/test_openai_codex_routing.py -q: 53 passed in 90.54s (0:01:30)
uv run ruff check headroom/providers/codex/live.py headroom/providers/proxy_routes.py headroom/proxy/handlers/openai.py headroom/proxy/ws_headers.py tests/test_codex_live.py: All checks passed
uv run ruff format --check headroom/providers/codex/live.py headroom/providers/proxy_routes.py headroom/proxy/handlers/openai.py headroom/proxy/ws_headers.py tests/test_codex_live.py: 5 files already formatted
uv run mypy headroom --ignore-missing-imports: Success: no issues found in 508 source files
git diff --check: pass
```

## Real Behavior Proof

The local WebSocket integration floor uses real uvicorn, a real
WebSocket client, and a real loopback WebSocket upstream. The base 403
comparison was not run. Head observes HTTP 101 on every Live alias and a
byte-identical binary frame relay.

- Environment: Windows, CPython 3.13, the Headroom proxy test
environment.
- Exact command / steps: run the focused Live test against the local
uvicorn proxy and loopback WebSocket upstream, then run the preservation
suite listed in `Test Output`.
- Observed result: all four Live aliases return HTTP 101, negotiate
`codex.live.v1`, preserve text and binary frames, and pass the
preservation suite.
- Not tested: Codex Desktop Live session; ChatGPT backend acceptance of
`/backend-api/codex/live`; the base 403 comparison.

## Review Readiness

- Live has a separate transport and does not enter Responses handling.
- Existing Responses and generic passthrough suites remain preservation
gates.
- No `CHANGELOG.md` or install/crate changes are included.
- [x] I have performed a self-review
- [x] This PR is ready for human review

## Checklist

- [x] Closes #2653
- [x] Real loopback handshake and binary-frame proof required
- [x] No audio payload logging
- [x] No unqualified end-to-end claim

## Screenshots

Not applicable.

## Additional Notes

The upstream Live path is derived from the repository’s Codex URL
formula and remains explicitly unconfirmed until owner evidence is
available.
This commit is contained in:
Rod Boev 2026-08-02 16:15:47 -04:00 committed by GitHub
parent 3a27c4dacb
commit 232fb49c73
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
6 changed files with 894 additions and 14 deletions

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@ -385,6 +385,22 @@ For Codex-compatible clients, the proxy also accepts these alias paths and route
Matching WebSocket and subpath aliases are also supported for Codex flows.
### Codex Live voice WebSocket
The proxy relays Codex Live voice frames without parsing or transforming them.
These paths use the same transparent transport:
- `ws://localhost:8787/v1/live`
- `ws://localhost:8787/v1/codex/live`
- `ws://localhost:8787/backend-api/live`
- `ws://localhost:8787/backend-api/codex/live`
Subscription authentication uses the derived ChatGPT backend path. API-key
authentication preserves the selected OpenAI-compatible base URL and inbound
path. The backend Live suffix defaults to `/live` and can be corrected with
`HEADROOM_CODEX_LIVE_WS_PATH` if the upstream contract changes. The exact
ChatGPT backend path is not confirmed by this proxy documentation.
### `POST /v1internal:streamGenerateContent`
Google Cloud Code Assist / Antigravity compatibility endpoint used by Pi-style `google-gemini-cli` and `google-antigravity` providers.

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@ -0,0 +1,253 @@
"""Transparent Codex Live WebSocket transport."""
from __future__ import annotations
import asyncio
import contextlib
import logging
import os
from collections.abc import Mapping
from typing import Any, cast
from fastapi import WebSocket
from headroom.copilot_auth import apply_copilot_api_auth, build_copilot_upstream_url
from headroom.providers.codex.endpoints import codex_backend_ws_url
from headroom.providers.codex.runtime import resolve_codex_routing
from headroom.proxy.handlers.openai import _is_allowed_websocket_origin
from headroom.proxy.helpers import _strip_internal_headers, merge_extra_headers
from headroom.proxy.ws_headers import WS_HOP_BY_HOP_HEADERS
logger = logging.getLogger("headroom.providers.codex.live")
CODEX_LIVE_ROUTE_PATHS: tuple[str, ...] = (
"/v1/live",
"/v1/codex/live",
"/backend-api/live",
"/backend-api/codex/live",
)
CODEX_LIVE_WS_PATH_ENV = "HEADROOM_CODEX_LIVE_WS_PATH"
DEFAULT_CODEX_LIVE_WS_PATH = "/live"
def codex_live_ws_path() -> str:
"""Return the correctable, derived Codex backend Live path."""
configured = os.environ.get(CODEX_LIVE_WS_PATH_ENV, "").strip()
path = configured or DEFAULT_CODEX_LIVE_WS_PATH
return path if path.startswith("/") else f"/{path}"
def codex_live_websocket_url(
*,
subscription: bool,
base_url: str,
path: str = "/v1/live",
query: str = "",
) -> str:
"""Build the Live WebSocket URL from the selected auth mode."""
if subscription:
url = codex_backend_ws_url(codex_live_ws_path())
else:
ws_base = base_url.replace("https://", "wss://").replace("http://", "ws://")
url = build_copilot_upstream_url(ws_base, path)
return f"{url}?{query}" if query else url
def _forward_headers(headers: Mapping[str, str]) -> dict[str, str]:
forwarded = {
key: value for key, value in headers.items() if key.lower() not in WS_HOP_BY_HOP_HEADERS
}
return _strip_internal_headers(forwarded)
def _ensure_live_authorization(headers: Mapping[str, str]) -> dict[str, str]:
"""Use the configured OpenAI key when a client omitted authorization."""
if any(key.lower() == "authorization" for key in headers):
return dict(headers)
api_key = os.environ.get("OPENAI_API_KEY", "").strip()
if not api_key:
return dict(headers)
return {**headers, "Authorization": f"Bearer {api_key}"}
_NON_WIRE_CLOSE_CODES = {1004, 1005, 1006, 1015}
def _close_info(source: object, default_code: int) -> tuple[int, str]:
received = getattr(source, "rcvd", None)
if isinstance(source, Mapping):
code = source.get("code")
reason = source.get("reason")
else:
code = getattr(source, "close_code", None)
reason = getattr(source, "close_reason", None)
raw_code: object = code or getattr(received, "code", None)
try:
code = int(str(raw_code))
except (TypeError, ValueError):
code = default_code
if code < 1000 or code > 4999 or code in _NON_WIRE_CLOSE_CODES:
code = default_code
reason = reason or getattr(received, "reason", None) or ""
return code, str(reason)[:120]
async def handle_codex_live_websocket(
websocket: WebSocket,
proxy: object,
openai_base_url: str,
inbound_path: str,
) -> None:
"""Relay Live text and binary frames without parsing or transforming them."""
client_headers = dict(websocket.headers)
if not _is_allowed_websocket_origin(client_headers):
await websocket.close(code=1008, reason="origin not allowed")
return
try:
import websockets
except ImportError:
logger.exception("Codex Live relay unavailable because websockets is not installed")
await websocket.accept()
await websocket.close(
code=1011, reason="websockets package not installed; pip install websockets"
)
return
forwarded_headers = _forward_headers(client_headers)
decision = resolve_codex_routing(forwarded_headers)
forwarded_headers = decision.headers
websocket_url = getattr(websocket, "url", None)
query = str(getattr(websocket_url, "query", "") or "")
upstream_url = codex_live_websocket_url(
subscription=decision.is_chatgpt_auth,
base_url=openai_base_url,
path=inbound_path,
query=query,
)
forwarded_headers = await apply_copilot_api_auth(forwarded_headers, url=upstream_url)
config = getattr(proxy, "config", None)
forwarded_headers = merge_extra_headers(
forwarded_headers,
getattr(config, "openai_extra_headers", None),
)
if not any(key.lower() == "authorization" for key in forwarded_headers):
if os.environ.get("OPENAI_API_KEY", "").strip():
forwarded_headers = _ensure_live_authorization(forwarded_headers)
logger.debug("Codex Live injected Authorization from OPENAI_API_KEY")
else:
logger.warning("Codex Live has no Authorization header or OPENAI_API_KEY")
raw_protocols = next(
(value for key, value in client_headers.items() if key.lower() == "sec-websocket-protocol"),
"",
)
subprotocols = [value.strip() for value in raw_protocols.split(",") if value.strip()]
upstream = None
relay_tasks: set[asyncio.Task[None]] = set()
accepted = False
client_disconnected = False
close_code = 1000
close_reason = ""
try:
try:
upstream = await websockets.connect(
upstream_url,
additional_headers=forwarded_headers,
# websockets types wire protocol tokens as a nominal wrapper.
subprotocols=cast(Any, subprotocols or None),
ssl=True if upstream_url.startswith("wss://") else None,
open_timeout=max(30, getattr(config, "connect_timeout_seconds", 10) * 3),
close_timeout=10,
ping_interval=20,
ping_timeout=None,
max_size=None,
)
except Exception:
logger.exception("Codex Live upstream handshake failed url=%s", upstream_url)
await websocket.close(code=1011, reason="upstream connection failed")
return
selected_subprotocol = getattr(upstream, "subprotocol", None)
if selected_subprotocol not in subprotocols:
selected_subprotocol = None
await websocket.accept(subprotocol=selected_subprotocol)
accepted = True
async def client_to_upstream() -> None:
nonlocal client_disconnected, close_code, close_reason
while True:
message = await websocket.receive()
message_type = message.get("type")
if message_type == "websocket.disconnect":
client_disconnected = True
close_code, close_reason = _close_info(message, 1000)
with contextlib.suppress(Exception):
await upstream.close(code=close_code, reason=close_reason)
return
if message_type != "websocket.receive":
continue
if message.get("text") is not None:
await upstream.send(message["text"])
elif message.get("bytes") is not None:
await upstream.send(message["bytes"])
async def upstream_to_client() -> None:
nonlocal close_code, close_reason
try:
async for message in upstream:
if isinstance(message, bytes):
await websocket.send_bytes(message)
else:
await websocket.send_text(message)
except asyncio.CancelledError:
raise
except Exception as exc:
close_code, close_reason = _close_info(exc, 1011)
logger.warning(
"Codex Live upstream relay failed code=%s reason=%s error=%s",
close_code,
close_reason,
type(exc).__name__,
)
else:
close_code, close_reason = _close_info(upstream, 1000)
relay_tasks = {
asyncio.create_task(client_to_upstream()),
asyncio.create_task(upstream_to_client()),
}
done, _ = await asyncio.wait(
relay_tasks,
return_when=asyncio.FIRST_COMPLETED,
)
for task in done:
with contextlib.suppress(asyncio.CancelledError):
error = task.exception()
if error is not None:
close_code, close_reason = _close_info(error, 1011)
logger.warning(
"Codex Live relay task failed task=%s code=%s reason=%s error=%s",
task.get_name(),
close_code,
close_reason,
type(error).__name__,
)
except asyncio.CancelledError:
raise
except Exception:
close_code, close_reason = 1011, "relay failed"
logger.exception("Codex Live relay failed url=%s", upstream_url)
finally:
pending = [task for task in relay_tasks if not task.done()]
for task in pending:
task.cancel()
if pending:
await asyncio.gather(*pending, return_exceptions=True)
if upstream is not None:
with contextlib.suppress(Exception):
await upstream.close()
if accepted and not client_disconnected:
with contextlib.suppress(Exception):
await websocket.close(code=close_code, reason=close_reason)

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@ -9,6 +9,10 @@ from typing import Any
from fastapi import FastAPI, Request, WebSocket
from headroom.providers.cloudcode import normalize_cloudcode_passthrough_path
from headroom.providers.codex.live import (
CODEX_LIVE_ROUTE_PATHS,
handle_codex_live_websocket,
)
from headroom.providers.codex.responses import handle_chatgpt_codex_responses_subpath
from headroom.providers.model_metadata import (
MODEL_METADATA_LIST_ENDPOINT,
@ -175,6 +179,26 @@ def _register_openai_responses_routes(app: FastAPI, proxy: Any) -> None:
_register_openai_responses_subpath_route(app, proxy, spec)
def _register_codex_live_routes(app: FastAPI, proxy: Any) -> None:
for path in CODEX_LIVE_ROUTE_PATHS:
def register_websocket_route(route_path: str) -> None:
async def codex_live_websocket(websocket: WebSocket):
await handle_codex_live_websocket(
websocket,
proxy,
_api_target(proxy, "openai"),
route_path,
)
codex_live_websocket.__name__ = (
route_path.strip("/").replace("/", "_") + "_live_websocket"
)
app.websocket(route_path)(codex_live_websocket)
register_websocket_route(path)
def _register_openai_image_route(app: FastAPI, proxy: Any, endpoint: OpenAIImageEndpoint) -> None:
async def openai_image_endpoint(request: Request):
return await handle_openai_image_endpoint(
@ -434,6 +458,8 @@ def register_provider_routes(app: FastAPI, proxy: Any) -> None:
_register_openai_image_routes(app, proxy)
_register_codex_live_routes(app, proxy)
_register_provider_passthrough_routes(app, proxy)
@app.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "HEAD"])

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@ -30,6 +30,7 @@ from headroom.proxy.helpers import (
)
from headroom.proxy.loopback_guard import is_loopback_host
from headroom.proxy.stage_timer import StageTimer, emit_stage_timings_log
from headroom.proxy.ws_headers import WS_HOP_BY_HOP_HEADERS
from headroom.proxy.ws_session_registry import (
TerminationCause,
WebSocketSessionRegistry,
@ -5718,20 +5719,7 @@ class OpenAIHandlerMixin:
# These are WebSocket handshake mechanics that the `websockets` library
# generates fresh for the upstream connection — forwarding them would conflict.
# Everything else (auth, org, beta, user-agent, custom headers) is forwarded as-is.
_skip_headers = frozenset(
{
"host", # must match upstream, not local proxy
"connection", # hop-by-hop
"upgrade", # hop-by-hop
"sec-websocket-key", # per-connection cryptographic nonce
"sec-websocket-version", # protocol version (websockets lib sets this)
"sec-websocket-extensions", # per-connection negotiation
"sec-websocket-accept", # server-side only
"sec-websocket-protocol", # handled via subprotocols param below
"content-length", # hop-by-hop
"transfer-encoding", # hop-by-hop
}
)
_skip_headers = WS_HOP_BY_HOP_HEADERS
# PR-A5 (P5-49): also drop internal x-headroom-* from the upstream
# WebSocket handshake. Inbound reads on `ws_headers` (memory user-id
# below) keep working because we filter only when building

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@ -0,0 +1,16 @@
"""Shared WebSocket handshake header policy."""
WS_HOP_BY_HOP_HEADERS = frozenset(
{
"host",
"connection",
"upgrade",
"sec-websocket-key",
"sec-websocket-version",
"sec-websocket-extensions",
"sec-websocket-accept",
"sec-websocket-protocol",
"content-length",
"transfer-encoding",
}
)

581
tests/test_codex_live.py Normal file
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@ -0,0 +1,581 @@
from __future__ import annotations
import asyncio
import base64
import json
import logging
import os
import socket
import sys
import threading
import time
from types import SimpleNamespace
from typing import Any
from unittest.mock import patch
import pytest
import uvicorn
import websockets
from starlette.websockets import WebSocket
from headroom.providers.codex.live import (
CODEX_LIVE_ROUTE_PATHS,
DEFAULT_CODEX_LIVE_WS_PATH,
_close_info,
_ensure_live_authorization,
_forward_headers,
codex_live_websocket_url,
codex_live_ws_path,
handle_codex_live_websocket,
)
from headroom.providers.codex.runtime import resolve_codex_routing
from headroom.proxy.server import ProxyConfig, create_app
def _jwt(payload: dict[str, Any]) -> str:
encoded = base64.urlsafe_b64encode(json.dumps(payload).encode()).decode().rstrip("=")
return f"header.{encoded}.signature"
def test_live_aliases_are_registered_as_websocket_routes(monkeypatch) -> None:
monkeypatch.setenv("HEADROOM_REQUIRE_RUST_CORE", "false")
app = create_app(
ProxyConfig(
optimize=False,
cache_enabled=False,
rate_limit_enabled=False,
openai_api_url="https://api.openai.test",
)
)
for path in CODEX_LIVE_ROUTE_PATHS:
matching = [route for route in app.routes if route.path == path]
assert any("live_websocket" in route.name for route in matching)
def test_live_auth_modes_and_derived_paths(monkeypatch) -> None:
subscription_headers = {
"authorization": "Bearer "
+ _jwt(
{
"https://api.openai.com/auth": {"chatgpt_account_id": "acct-live"},
}
),
}
subscription = _forward_headers(subscription_headers)
decision = resolve_codex_routing(subscription)
assert (
codex_live_websocket_url(
subscription=True,
base_url="https://api.openai.test",
path="/backend-api/live",
query="model=gpt-5.4",
)
== "wss://chatgpt.com/backend-api/codex/live?model=gpt-5.4"
)
assert subscription["authorization"] == subscription_headers["authorization"]
assert decision.headers["ChatGPT-Account-ID"] == "acct-live"
monkeypatch.setenv("OPENAI_API_KEY", "env-live-key")
assert _ensure_live_authorization({}) == {"Authorization": "Bearer env-live-key"}
assert _ensure_live_authorization({"authorization": "Bearer client-key"}) == {
"authorization": "Bearer client-key"
}
monkeypatch.delenv("OPENAI_API_KEY")
existing_headers = {"X-Trace": "keep"}
assert _ensure_live_authorization(existing_headers) == existing_headers
assert (
codex_live_websocket_url(
subscription=False,
base_url="http://127.0.0.1:9000",
path="/backend-api/live",
query="mode=live",
)
== "ws://127.0.0.1:9000/backend-api/live?mode=live"
)
assert DEFAULT_CODEX_LIVE_WS_PATH == "/live"
monkeypatch.setenv("HEADROOM_CODEX_LIVE_WS_PATH", "/custom/live")
assert codex_live_ws_path() == "/custom/live"
assert (
codex_live_websocket_url(
subscription=True,
base_url="https://api.openai.test",
query="mode=live",
)
== "wss://chatgpt.com/backend-api/codex/custom/live?mode=live"
)
def test_live_headers_strip_internal_and_handshake_headers_without_beta_injection() -> None:
headers = _forward_headers(
{
"Authorization": "Bearer live-token",
"ChatGPT-Account-ID": "acct-live",
"OpenAI-Beta": "client-beta",
"X-Headroom-User-ID": "private",
"Connection": "keep-alive",
"Sec-WebSocket-Key": "nonce",
"Sec-WebSocket-Protocol": "codex.live.v1",
"X-Trace": "keep",
},
)
lowered = {key.lower(): value for key, value in headers.items()}
assert lowered == {
"authorization": "Bearer live-token",
"chatgpt-account-id": "acct-live",
"openai-beta": "client-beta",
"x-trace": "keep",
}
def test_live_close_info_preserves_wire_codes_and_reasons() -> None:
assert _close_info({"code": 1008, "reason": "origin not allowed"}, 1011) == (
1008,
"origin not allowed",
)
assert _close_info(
SimpleNamespace(rcvd=SimpleNamespace(code=1013, reason="upstream busy")),
1011,
) == (1013, "upstream busy")
assert _close_info({"code": 1006, "reason": "abnormal"}, 1011) == (1011, "abnormal")
class _LoopbackLiveUpstream:
def __init__(self) -> None:
self.server: Any = None
self.port = 0
self.headers: dict[str, str] = {}
self.paths: list[str] = []
self.received: list[str | bytes] = []
async def handler(self, connection: Any) -> None:
request = getattr(connection, "request", None)
request_headers = getattr(request, "headers", None)
if request_headers is None:
request_headers = getattr(connection, "request_headers", {})
self.headers = dict(request_headers)
request_target = getattr(request, "path", None) or getattr(request, "target", None)
if request_target is not None:
self.paths.append(str(request_target))
async for message in connection:
assert isinstance(message, (str, bytes))
self.received.append(message)
await connection.send(message)
async def start(self) -> None:
self.port = _free_port()
self.server = await websockets.serve(
self.handler,
"127.0.0.1",
self.port,
subprotocols=["codex.live.v1"],
)
async def stop(self) -> None:
if self.server is not None:
self.server.close()
await self.server.wait_closed()
class _ProxyThread:
def __init__(self, port: int, upstream_port: int) -> None:
app = create_app(
ProxyConfig(
host="127.0.0.1",
port=port,
optimize=False,
cache_enabled=False,
rate_limit_enabled=False,
openai_api_url=f"http://127.0.0.1:{upstream_port}",
)
)
self.server = uvicorn.Server(
uvicorn.Config(
app,
host="127.0.0.1",
port=port,
log_level="warning",
loop="asyncio",
lifespan="on",
ws="websockets",
)
)
self.thread = threading.Thread(target=self.server.run, daemon=True)
def start(self) -> None:
self.thread.start()
deadline = time.perf_counter() + 15.0
while time.perf_counter() < deadline:
if self.server.started:
return
time.sleep(0.05)
raise RuntimeError("uvicorn proxy failed to start")
def stop(self) -> None:
self.server.should_exit = True
self.thread.join(timeout=15.0)
def _free_port() -> int:
with socket.socket() as sock:
sock.bind(("127.0.0.1", 0))
return int(sock.getsockname()[1])
@pytest.mark.asyncio
async def test_live_handler_propagates_close_metadata_and_cleans_tasks(monkeypatch, caplog) -> None:
class _Client:
headers = {"authorization": "Bearer sk-live"}
url = SimpleNamespace(query="turn=1")
def __init__(self, message: dict[str, Any], *, fail_accept: bool = False) -> None:
self.message = message
self.fail_accept = fail_accept
self.accepted = False
self.closed: list[tuple[int | None, str | None]] = []
self.cancelled = False
async def accept(self, **kwargs: Any) -> None:
if self.fail_accept:
raise RuntimeError("accept failed")
self.accepted = True
async def close(self, code=None, reason=None) -> None:
self.closed.append((code, reason))
async def receive(self) -> dict[str, Any]:
if self.message.get("type") == "wait":
try:
await asyncio.Event().wait()
except asyncio.CancelledError:
self.cancelled = True
raise
return self.message
async def send_text(self, message: str) -> None:
del message
async def send_bytes(self, message: bytes) -> None:
del message
class _Upstream:
subprotocol = None
def __init__(self, error: Exception | None = None) -> None:
self.error = error
self.close_calls: list[tuple[int | None, str | None]] = []
self.sent: list[str | bytes] = []
self.cancelled = False
async def send(self, message: str | bytes) -> None:
self.sent.append(message)
async def close(self, code=None, reason=None) -> None:
self.close_calls.append((code, reason))
def __aiter__(self):
async def _events():
if self.error is not None:
raise self.error
try:
await asyncio.Event().wait()
except asyncio.CancelledError:
self.cancelled = True
raise
if False:
yield b""
return _events()
proxy = SimpleNamespace(
config=SimpleNamespace(openai_extra_headers=None, connect_timeout_seconds=10),
)
disconnect_client = _Client(
{"type": "websocket.disconnect", "code": 1008, "reason": "client stopped"}
)
disconnect_upstream = _Upstream()
monkeypatch.setattr(websockets, "connect", lambda *args, **kwargs: _await(disconnect_upstream))
await handle_codex_live_websocket(
disconnect_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert disconnect_upstream.close_calls[0] == (1008, "client stopped")
subscription_client = _Client({"type": "websocket.disconnect", "code": 1000, "reason": "done"})
subscription_client.headers = {
"authorization": "Bearer "
+ _jwt(
{
"https://api.openai.com/auth": {
"chatgpt_account_id": "acct-live",
}
}
)
}
subscription_upstream = _Upstream()
subscription_connect: dict[str, Any] = {}
async def connect_subscription(*args: Any, **kwargs: Any) -> Any:
subscription_connect["url"] = args[0]
subscription_connect["headers"] = kwargs["additional_headers"]
return subscription_upstream
monkeypatch.setattr(websockets, "connect", connect_subscription)
await handle_codex_live_websocket(
subscription_client,
proxy,
"https://api.openai.test",
"/backend-api/live",
)
assert subscription_connect["url"] == "wss://chatgpt.com/backend-api/codex/live?turn=1"
assert subscription_connect["headers"]["ChatGPT-Account-ID"] == "acct-live"
fallback_client = _Client({"type": "websocket.disconnect", "code": 1000, "reason": "done"})
fallback_client.headers = {}
fallback_connect: dict[str, Any] = {}
fallback_upstream = _Upstream()
async def connect_fallback(*args: Any, **kwargs: Any) -> Any:
fallback_connect["headers"] = kwargs["additional_headers"]
return fallback_upstream
monkeypatch.setenv("OPENAI_API_KEY", "env-live-key")
monkeypatch.setattr(websockets, "connect", connect_fallback)
await handle_codex_live_websocket(
fallback_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert fallback_connect["headers"]["Authorization"] == "Bearer env-live-key"
no_auth_client = _Client({"type": "websocket.disconnect", "code": 1000, "reason": "done"})
no_auth_client.headers = {}
no_auth_connect: dict[str, Any] = {}
no_auth_upstream = _Upstream()
async def connect_without_auth(*args: Any, **kwargs: Any) -> Any:
no_auth_connect["headers"] = kwargs["additional_headers"]
return no_auth_upstream
monkeypatch.delenv("OPENAI_API_KEY")
caplog.set_level(logging.WARNING, logger="headroom.providers.codex.live")
monkeypatch.setattr(websockets, "connect", connect_without_auth)
await handle_codex_live_websocket(
no_auth_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert no_auth_connect["headers"] == {}
assert "Codex Live has no Authorization header or OPENAI_API_KEY" in caplog.text
class _QueuedClient(WebSocket):
def __init__(self, messages: list[dict[str, Any]]) -> None:
scope = {
"type": "websocket",
"path": "/v1/live",
"raw_path": b"/v1/live",
"scheme": "ws",
"query_string": b"",
"headers": [],
"client": ("127.0.0.1", 1234),
"server": ("127.0.0.1", 8788),
"subprotocols": [],
}
super().__init__(scope, self._receive_asgi, self._send_asgi)
self._messages = iter([{"type": "websocket.connect"}, *messages])
self.sent: list[dict[str, Any]] = []
async def _receive_asgi(self) -> dict[str, Any]:
return {"type": "websocket.connect"}
async def _send_asgi(self, message: dict[str, Any]) -> None:
self.sent.append(message)
async def receive(self) -> dict[str, Any]:
# Starlette rejects unknown connected-state messages before the
# handler can reach its defensive branch, so inject it at this seam.
try:
return next(self._messages)
except StopIteration:
return {"type": "websocket.disconnect", "code": 1000, "reason": "done"}
queued_client = _QueuedClient(
[
{"type": "websocket.other"},
{"type": "websocket.receive"},
{"type": "websocket.disconnect", "code": 1000, "reason": "done"},
]
)
queued_upstream = _Upstream()
monkeypatch.setattr(websockets, "connect", lambda *args, **kwargs: _await(queued_upstream))
await handle_codex_live_websocket(
queued_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert queued_upstream.sent == []
assert queued_upstream.close_calls[0] == (1000, "done")
cancellation_client = _Client({"type": "wait"})
cancellation_upstream = _Upstream()
monkeypatch.setattr(
websockets, "connect", lambda *args, **kwargs: _await(cancellation_upstream)
)
handler_task = asyncio.create_task(
handle_codex_live_websocket(
cancellation_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
)
while not cancellation_client.accepted:
await asyncio.sleep(0)
handler_task.cancel()
with pytest.raises(asyncio.CancelledError):
await handler_task
assert cancellation_client.cancelled
assert cancellation_upstream.cancelled
assert cancellation_upstream.close_calls
class _UpstreamFailure(Exception):
rcvd = SimpleNamespace(code=1013, reason="upstream busy")
failure_client = _Client({"type": "wait"})
failure_upstream = _Upstream(_UpstreamFailure("busy"))
monkeypatch.setattr(websockets, "connect", lambda *args, **kwargs: _await(failure_upstream))
await handle_codex_live_websocket(
failure_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert failure_client.closed[-1] == (1013, "upstream busy")
handshake_client = _Client({"type": "wait"})
async def fail_handshake(*args: Any, **kwargs: Any) -> Any:
del args, kwargs
raise RuntimeError("handshake failed")
monkeypatch.setattr(websockets, "connect", fail_handshake)
await handle_codex_live_websocket(
handshake_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert handshake_client.closed[-1] == (1011, "upstream connection failed")
class _ReceiveFailureClient(_Client):
async def receive(self) -> dict[str, Any]:
raise RuntimeError("client receive failed")
task_failure_client = _ReceiveFailureClient({"type": "wait"})
task_failure_upstream = _Upstream()
monkeypatch.setattr(
websockets, "connect", lambda *args, **kwargs: _await(task_failure_upstream)
)
await handle_codex_live_websocket(
task_failure_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert task_failure_client.closed[-1] == (1011, "")
accept_client = _Client({"type": "wait"}, fail_accept=True)
accept_upstream = _Upstream()
monkeypatch.setattr(websockets, "connect", lambda *args, **kwargs: _await(accept_upstream))
await handle_codex_live_websocket(
accept_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert accept_upstream.close_calls
missing_client = _Client({"type": "wait"})
with patch.dict(sys.modules, {"websockets": None}):
await handle_codex_live_websocket(
missing_client,
proxy,
"https://api.openai.test",
"/v1/live",
)
assert missing_client.accepted
assert missing_client.closed[-1] == (
1011,
"websockets package not installed; pip install websockets",
)
async def _await(value: Any) -> Any:
return value
@pytest.mark.asyncio
async def test_live_rg4_real_uvicorn_and_websockets_binary_round_trip() -> None:
previous = os.environ.get("HEADROOM_REQUIRE_RUST_CORE")
os.environ["HEADROOM_REQUIRE_RUST_CORE"] = "false"
upstream = _LoopbackLiveUpstream()
await upstream.start()
proxy = _ProxyThread(_free_port(), upstream.port)
proxy.start()
payload = b"\x00\x01live-voice\xff"
expected: list[str | bytes] = []
try:
with pytest.raises(websockets.exceptions.InvalidStatus):
async with websockets.connect(
f"ws://127.0.0.1:{proxy.server.config.port}/v1/live",
additional_headers={
"Authorization": "Bearer sk-live",
"Origin": "https://remote.example",
},
):
raise AssertionError("disallowed origin unexpectedly connected")
assert upstream.received == []
for index, path in enumerate(CODEX_LIVE_ROUTE_PATHS):
text_payload = f"live-text-{index}"
binary_payload = payload + bytes([index])
async with websockets.connect(
f"ws://127.0.0.1:{proxy.server.config.port}{path}?turn={index}",
additional_headers={
"Authorization": "Bearer sk-live",
"OpenAI-Beta": "client-beta",
"X-Headroom-User-ID": "private",
},
subprotocols=["codex.live.v1"],
) as client:
response = getattr(client, "response", None)
assert response is not None
assert response.status_code == 101
assert client.subprotocol == "codex.live.v1"
await client.send(text_payload)
assert await client.recv() == text_payload
await client.send(binary_payload)
assert await client.recv() == binary_payload
expected.extend([text_payload, binary_payload])
assert upstream.received == expected
assert upstream.paths == [
f"{path}?turn={index}" for index, path in enumerate(CODEX_LIVE_ROUTE_PATHS)
]
assert upstream.headers["authorization"] == "Bearer sk-live"
assert upstream.headers["openai-beta"] == "client-beta"
assert "x-headroom-user-id" not in upstream.headers
finally:
proxy.stop()
await upstream.stop()
if previous is None:
os.environ.pop("HEADROOM_REQUIRE_RUST_CORE", None)
else:
os.environ["HEADROOM_REQUIRE_RUST_CORE"] = previous