Add dashboard Hermes console websocket

This commit is contained in:
Shannon Sands 2026-06-30 16:05:52 +10:00 committed by kshitij
parent dcbce869ae
commit 4493bba901
4 changed files with 686 additions and 8 deletions

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@ -608,7 +608,8 @@ async def api_auth_ws_ticket(request: Request):
Browsers cannot set ``Authorization`` on a WebSocket upgrade, so in
gated mode the SPA POSTs this endpoint to get a ``?ticket=`` value to
append to ``/api/pty``, ``/api/ws``, ``/api/pub``, or ``/api/events``.
append to ``/api/pty``, ``/api/console``, ``/api/ws``, ``/api/pub``, or
``/api/events``.
The ticket has a 30-second TTL and is single-use. Calling this endpoint
multiple times in quick succession (e.g. one ticket per WS) is the

View file

@ -12628,6 +12628,548 @@ def _ws_close_reason(text: str) -> str:
return encoded[:120].decode("utf-8", "ignore") + "..."
# ---------------------------------------------------------------------------
# /api/console — safe Hermes Console command WebSocket.
#
# Unlike /api/pty, this endpoint never spawns a PTY, shell, or full Hermes CLI
# subprocess. It runs the curated console engine in-process and exchanges
# structured JSON frames with the dashboard xterm overlay.
# ---------------------------------------------------------------------------
_CONSOLE_PROMPT = "hermes> "
_CONSOLE_COMMAND_TIMEOUT_SECONDS = 60.0
_CONSOLE_OUTPUT_LIMIT = 50000
def _dashboard_console_context() -> str:
"""Choose local vs hosted command policy for the dashboard console."""
return "hosted" if _default_hermes_root_is_opt_data() else "local"
def _console_profile_from_ws(ws: WebSocket) -> Optional[str]:
profile = (ws.query_params.get("profile") or "").strip()
return profile or None
def _execute_console_line(
engine: Any,
line: str,
*,
confirmed: bool,
profile: Optional[str],
) -> Any:
# _profile_scope swaps process-global skill module paths; keep it inside
# the worker thread and never hold it across awaits.
with _profile_scope(profile):
return engine.execute(line, confirmed=confirmed)
async def _console_send(
ws: WebSocket,
send_lock: asyncio.Lock,
payload: Dict[str, Any],
) -> None:
async with send_lock:
await ws.send_json(payload)
async def _console_send_result(
ws: WebSocket,
send_lock: asyncio.Lock,
result: Any,
*,
command_id: int,
) -> None:
command = result.command or ""
status = result.status
if status == "ok":
if result.output:
await _console_send(
ws,
send_lock,
{
"type": "output",
"id": command_id,
"stream": "stdout",
"data": result.output,
"command": command,
},
)
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "ok",
"command": command,
"prompt": _CONSOLE_PROMPT,
},
)
return
if status == "error":
await _console_send(
ws,
send_lock,
{
"type": "error",
"id": command_id,
"message": result.output or "Command failed.",
"command": command,
},
)
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "error",
"command": command,
"prompt": _CONSOLE_PROMPT,
},
)
return
if status == "confirm_required":
await _console_send(
ws,
send_lock,
{
"type": "confirm_required",
"id": command_id,
"command": command,
"message": result.confirmation_message or f"Run `{command}`?",
"prompt": _CONSOLE_PROMPT,
},
)
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "confirm_required",
"command": command,
"prompt": _CONSOLE_PROMPT,
},
)
return
if status == "clear":
await _console_send(ws, send_lock, {"type": "clear", "id": command_id})
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "clear",
"command": command,
"prompt": _CONSOLE_PROMPT,
},
)
return
if status == "exit":
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "exit",
"command": command,
"prompt": "",
},
)
return
await _console_send(
ws,
send_lock,
{
"type": "error",
"id": command_id,
"message": f"Unknown console result status: {status}",
"command": command,
},
)
def _console_json_payload(msg: Any) -> tuple[Optional[dict[str, Any]], Optional[str]]:
raw: str | bytes | None = msg.get("text")
if raw is None:
raw = msg.get("bytes")
if raw is None:
return None, None
if isinstance(raw, bytes):
try:
raw = raw.decode("utf-8")
except UnicodeDecodeError:
return None, "Console frames must be UTF-8 JSON."
try:
payload = json.loads(raw)
except json.JSONDecodeError:
return None, "Console frames must be JSON objects."
if not isinstance(payload, dict):
return None, "Console frames must be JSON objects."
return payload, None
@app.websocket("/api/console")
async def console_ws(ws: WebSocket) -> None:
peer = ws.client.host if ws.client else "?"
if not _DASHBOARD_EMBEDDED_CHAT_ENABLED:
_log.info("console refused: embedded chat disabled peer=%s", peer)
await ws.close(code=4404, reason="embedded chat disabled")
return
auth_reason, cred = _ws_auth_reason(ws)
mode = _ws_auth_mode()
if auth_reason is not None:
_log.warning(
"console auth rejected reason=%s mode=%s cred=%s peer=%s",
auth_reason, mode, cred, peer,
)
await ws.close(code=4401, reason=_ws_close_reason(f"auth: {auth_reason}"))
return
host_origin_reason = _ws_host_origin_reason(ws)
if host_origin_reason is not None:
_log.warning("console refused: %s peer=%s", host_origin_reason, peer)
await ws.close(code=4403, reason=_ws_close_reason(host_origin_reason))
return
client_reason = _ws_client_reason(ws)
if client_reason is not None:
_log.warning("console refused: %s", client_reason)
await ws.close(code=4408, reason=_ws_close_reason(client_reason))
return
await ws.accept()
profile = _console_profile_from_ws(ws)
context = _dashboard_console_context()
send_lock = asyncio.Lock()
try:
from hermes_cli.console_engine import HermesConsoleEngine
engine = HermesConsoleEngine(
output_limit=_CONSOLE_OUTPUT_LIMIT,
context=context, # type: ignore[arg-type]
)
if profile and profile.lower() != "current":
_resolve_profile_dir(profile)
except HTTPException as exc:
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": str(exc.detail),
"prompt": "",
},
)
await ws.close(code=4400, reason=_ws_close_reason(str(exc.detail)))
return
except Exception as exc:
_log.exception("console failed to initialize")
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": f"Console unavailable: {exc}",
"prompt": "",
},
)
await ws.close(code=1011)
return
_log.info(
"console accepted peer=%s mode=%s cred=%s context=%s profile=%s",
peer,
mode,
cred,
context,
profile or "current",
)
await _console_send(
ws,
send_lock,
{
"type": "ready",
"context": context,
"profile": profile or "current",
"prompt": _CONSOLE_PROMPT,
},
)
active_task: asyncio.Task | None = None
pending_confirmation: Optional[str] = None
command_generation = 0
async def run_command(line: str, *, confirmed: bool, command_id: int) -> None:
nonlocal active_task, pending_confirmation, command_generation
try:
result = await asyncio.wait_for(
asyncio.to_thread(
_execute_console_line,
engine,
line,
confirmed=confirmed,
profile=profile,
),
timeout=_CONSOLE_COMMAND_TIMEOUT_SECONDS,
)
except asyncio.CancelledError:
raise
except asyncio.TimeoutError:
if command_id == command_generation:
pending_confirmation = None
await _console_send(
ws,
send_lock,
{
"type": "error",
"id": command_id,
"message": (
"Command timed out. Hermes Console returned to the prompt."
),
"command": line,
},
)
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "timeout",
"command": line,
"prompt": _CONSOLE_PROMPT,
},
)
except Exception as exc:
if command_id == command_generation:
pending_confirmation = None
_log.exception("console command failed")
await _console_send(
ws,
send_lock,
{
"type": "error",
"id": command_id,
"message": str(exc) or exc.__class__.__name__,
"command": line,
},
)
await _console_send(
ws,
send_lock,
{
"type": "complete",
"id": command_id,
"status": "error",
"command": line,
"prompt": _CONSOLE_PROMPT,
},
)
else:
if command_id != command_generation:
return
pending_confirmation = (
result.command if result.status == "confirm_required" else None
)
await _console_send_result(
ws,
send_lock,
result,
command_id=command_id,
)
if result.status == "exit":
await ws.close(code=1000)
finally:
if command_id == command_generation:
active_task = None
async def start_command(line: str, *, confirmed: bool = False) -> None:
nonlocal active_task, command_generation
command_generation += 1
command_id = command_generation
active_task = asyncio.create_task(
run_command(line, confirmed=confirmed, command_id=command_id)
)
try:
while True:
try:
msg = await ws.receive()
except RuntimeError:
break
msg_type = msg.get("type")
if msg_type == "websocket.disconnect":
break
payload, error = _console_json_payload(msg)
if error:
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": error,
"prompt": _CONSOLE_PROMPT,
},
)
continue
if payload is None:
continue
frame_type = str(payload.get("type") or "").strip().lower()
if frame_type == "ping":
await _console_send(
ws,
send_lock,
{
"type": "pong",
"prompt": _CONSOLE_PROMPT,
},
)
continue
if frame_type == "cancel":
if active_task and not active_task.done():
command_generation += 1
active_task.cancel()
active_task = None
pending_confirmation = None
await _console_send(
ws,
send_lock,
{
"type": "complete",
"status": "cancelled",
"prompt": _CONSOLE_PROMPT,
},
)
elif pending_confirmation:
pending_confirmation = None
await _console_send(
ws,
send_lock,
{
"type": "complete",
"status": "cancelled",
"prompt": _CONSOLE_PROMPT,
},
)
else:
await _console_send(
ws,
send_lock,
{
"type": "complete",
"status": "idle",
"prompt": _CONSOLE_PROMPT,
},
)
continue
if active_task and not active_task.done():
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": "A console command is already running.",
"prompt": _CONSOLE_PROMPT,
},
)
continue
if frame_type == "confirm":
command = str(payload.get("command") or pending_confirmation or "").strip()
if not pending_confirmation:
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": "No command is waiting for confirmation.",
"prompt": _CONSOLE_PROMPT,
},
)
continue
if command != pending_confirmation:
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": "Confirmation does not match the pending command.",
"prompt": _CONSOLE_PROMPT,
},
)
continue
pending_confirmation = None
await start_command(command, confirmed=True)
continue
if frame_type in {"input", "command"}:
line = str(payload.get("line") or payload.get("command") or "").strip()
if not line:
await _console_send(
ws,
send_lock,
{
"type": "complete",
"status": "ok",
"prompt": _CONSOLE_PROMPT,
},
)
continue
if pending_confirmation:
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": (
"Confirm or cancel the pending command before "
"running another one."
),
"prompt": _CONSOLE_PROMPT,
},
)
continue
await start_command(line)
continue
await _console_send(
ws,
send_lock,
{
"type": "error",
"message": f"Unsupported console frame: {frame_type or '?'}",
"prompt": _CONSOLE_PROMPT,
},
)
except WebSocketDisconnect:
pass
finally:
if active_task and not active_task.done():
active_task.cancel()
try:
await active_task
except (asyncio.CancelledError, Exception):
pass
@app.websocket("/api/pty")
async def pty_ws(ws: WebSocket) -> None:
peer = ws.client.host if ws.client else "?"

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@ -1,9 +1,9 @@
"""Tests for the WS-upgrade auth helper (Phase 5 task 5.2).
The dashboard's four WS endpoints (``/api/pty``, ``/api/ws``, ``/api/pub``,
``/api/events``) share an auth gate: ``_ws_auth_ok``. In loopback mode it
accepts ``?token=<_SESSION_TOKEN>``; in gated mode it accepts a single-use
``?ticket=`` minted by ``POST /api/auth/ws-ticket``.
The dashboard's WS endpoints (``/api/pty``, ``/api/console``, ``/api/ws``,
``/api/pub``, ``/api/events``) share an auth gate: ``_ws_auth_ok``. In
loopback mode it accepts ``?token=<_SESSION_TOKEN>``; in gated mode it accepts
a single-use ``?ticket=`` minted by ``POST /api/auth/ws-ticket``.
These tests exercise the helper at the unit level (no actual WS upgrade)
plus the ticket-mint endpoint under realistic gated-mode setup. We don't
@ -315,9 +315,10 @@ class TestWsRequestIsAllowedGated:
(intended only for unauthenticated loopback dev) must not also reject
those upgrades: the OAuth gate + single-use ticket is the auth.
Regression coverage: every WS endpoint (``/api/pty``, ``/api/ws``,
``/api/pub``, ``/api/events``) calls ``_ws_request_is_allowed`` after
``_ws_auth_ok``. If the peer-IP check rejects gated mode, the chat
Regression coverage: every WS endpoint (``/api/pty``, ``/api/console``,
``/api/ws``, ``/api/pub``, ``/api/events``) calls
``_ws_request_is_allowed`` after ``_ws_auth_ok``. If the peer-IP check
rejects gated mode, the chat
tab + sidebar tool feed silently fail to connect even after a
successful OAuth login.
"""

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@ -0,0 +1,134 @@
"""Dashboard Hermes Console websocket tests."""
from __future__ import annotations
import time
from urllib.parse import urlencode
import pytest
from starlette.testclient import TestClient
from starlette.websockets import WebSocketDisconnect
from hermes_cli import web_server
@pytest.fixture
def console_client(monkeypatch, _isolate_hermes_home):
previous_auth_required = getattr(web_server.app.state, "auth_required", None)
previous_bound_host = getattr(web_server.app.state, "bound_host", None)
web_server.app.state.auth_required = False
web_server.app.state.bound_host = None
monkeypatch.setattr(web_server, "_DASHBOARD_EMBEDDED_CHAT_ENABLED", True)
client = TestClient(web_server.app)
try:
yield client
finally:
close = getattr(client, "close", None)
if close is not None:
close()
if previous_auth_required is None:
if hasattr(web_server.app.state, "auth_required"):
delattr(web_server.app.state, "auth_required")
else:
web_server.app.state.auth_required = previous_auth_required
if previous_bound_host is None:
if hasattr(web_server.app.state, "bound_host"):
delattr(web_server.app.state, "bound_host")
else:
web_server.app.state.bound_host = previous_bound_host
def _url(token: str | None = None, **params: str) -> str:
query = {"token": web_server._SESSION_TOKEN, **params}
if token is not None:
query["token"] = token
return f"/api/console?{urlencode(query)}"
def _recv_until(conn, frame_type: str, *, status: str | None = None) -> dict:
deadline = time.monotonic() + 5.0
while time.monotonic() < deadline:
frame = conn.receive_json()
if frame.get("type") != frame_type:
continue
if status is not None and frame.get("status") != status:
continue
return frame
raise AssertionError(f"Timed out waiting for {frame_type} frame")
def test_console_ws_rejects_missing_or_bad_token(console_client):
with pytest.raises(WebSocketDisconnect) as exc:
with console_client.websocket_connect("/api/console"):
pass
assert exc.value.code == 4401
with pytest.raises(WebSocketDisconnect) as exc:
with console_client.websocket_connect(_url(token="wrong")):
pass
assert exc.value.code == 4401
def test_console_ws_runs_read_only_command(console_client):
with console_client.websocket_connect(_url()) as conn:
ready = conn.receive_json()
assert ready["type"] == "ready"
assert ready["context"] == "local"
assert ready["prompt"] == "hermes> "
conn.send_json({"type": "input", "line": "help"})
output = _recv_until(conn, "output")
assert "Hermes Console" in output["data"]
complete = _recv_until(conn, "complete", status="ok")
assert complete["prompt"] == "hermes> "
def test_console_ws_confirmed_command_executes_after_confirmation(console_client):
from hermes_cli.config import load_config
with console_client.websocket_connect(_url()) as conn:
assert conn.receive_json()["type"] == "ready"
conn.send_json({"type": "input", "line": "config set display.interface cli"})
confirmation = _recv_until(conn, "confirm_required")
assert confirmation["command"] == "config set display.interface cli"
assert confirmation["message"]
conn.send_json({"type": "confirm", "command": confirmation["command"]})
_recv_until(conn, "complete", status="ok")
assert load_config()["display"]["interface"] == "cli"
def test_console_ws_uses_hosted_context_for_opt_data_policy(console_client, monkeypatch):
monkeypatch.setattr(web_server, "_default_hermes_root_is_opt_data", lambda: True)
with console_client.websocket_connect(_url()) as conn:
ready = conn.receive_json()
assert ready["type"] == "ready"
assert ready["context"] == "hosted"
conn.send_json({"type": "input", "line": "profile create nope"})
error = _recv_until(conn, "error")
assert "hosted Hermes Console" in error["message"]
def test_console_ws_cancel_returns_to_prompt(console_client, monkeypatch):
from hermes_cli.console_engine import ConsoleResult, HermesConsoleEngine
def slow_execute(self, line: str, *, confirmed: bool = False):
time.sleep(0.5)
return ConsoleResult("ok", output="late", command=line)
monkeypatch.setattr(HermesConsoleEngine, "execute", slow_execute)
with console_client.websocket_connect(_url()) as conn:
assert conn.receive_json()["type"] == "ready"
conn.send_json({"type": "input", "line": "status"})
conn.send_json({"type": "cancel"})
complete = _recv_until(conn, "complete", status="cancelled")
assert complete["prompt"] == "hermes> "