Files
agentic-mobile-control/apps/device-host-agent/host_agent/web/app.py
T

877 lines
32 KiB
Python

from __future__ import annotations
import asyncio
import base64
import json
from collections.abc import Awaitable, Callable
from pathlib import Path
from typing import TYPE_CHECKING, Any
import jinja2
from fastapi import Depends, FastAPI, HTTPException, Request
from fastapi.responses import HTMLResponse, JSONResponse, RedirectResponse, Response
from device.manager import DeviceManager
from host_agent.assignment import AssignmentExecutor
from host_agent.client import (
HostAgentClient,
HostAgentEnrollmentClient,
HostAgentAPIError,
HostTaskSubmissionUnknownError,
)
from host_agent.config import HostAgentConfig
from host_agent.conversation import ConversationAgent
from host_agent.conversation_log import ConversationLogStore
from host_agent.devices import register_local_device, unregister_local_device
from host_agent.history import ConsoleHistoryStore
from host_agent.identity import HostIdentityStore
from host_agent.local_account import LocalAccountStore
from host_agent.mcp_lock import McpBusyTracker
from host_agent.mcp_token import McpTokenStore
from host_agent.status import AgentStatusTracker
from host_agent.web.auth import (
SessionManager,
SessionState,
attempt_login,
change_password,
)
from host_agent.web.mcp_auth import BearerAuthMiddleware
from storage.device_config import DeviceConfigStore
if TYPE_CHECKING:
from mcp.server.fastmcp import FastMCP
from storage.task_metadata import TaskMetadataStore
from storage.timeline import Timeline
SESSION_COOKIE_NAME = "host_console_session"
CSRF_HEADER_NAME = "X-CSRF-Token"
CSRF_FORM_FIELD = "csrf_token"
_LOOPBACK_BIND_HOSTS = frozenset({"127.0.0.1", "localhost", "::1"})
TaskSubmissionCallable = Callable[..., Awaitable[str]]
TaskCancellationCallable = Callable[..., Awaitable[Any]]
AUTOMATIC_DEVICE_VALUE = "__automatic__"
_TERMINAL_LOCAL_TASK_STATUSES = frozenset({"completed", "failed", "cancelled"})
_ENV = jinja2.Environment(
loader=jinja2.FileSystemLoader(Path(__file__).parent / "templates"),
autoescape=jinja2.select_autoescape(["html", "xml"]),
)
def _render(
template_name: str,
*,
status_code: int = 200,
**context: Any,
) -> HTMLResponse:
html = _ENV.get_template(template_name).render(**context)
return HTMLResponse(html, status_code=status_code)
def _device_display_status(device: Any, *, busy_device_id: str | None) -> str:
"""Connected-but-idle devices report "busy" at the DeviceManager layer
(an active Appium/WDA session is required to reuse it), which is not the
same as a task currently running on that device. Only the device actually
bound to the current assignment should read as "busy" here.
"""
if device.status == "busy" and device.id != busy_device_id:
return "connected"
return device.status
def _screenshot_data_uri(
record: dict[str, Any],
*,
path_key: str = "screenshot_path",
) -> str | None:
"""Return a ``data:`` URI for one step screenshot, or ``None``."""
screenshot_path = record.get(path_key)
if not screenshot_path:
return None
path = Path(str(screenshot_path))
if not path.exists():
return None
encoded = base64.b64encode(path.read_bytes()).decode("ascii")
return f"data:image/png;base64,{encoded}"
def _ocr_results(record: dict[str, Any]) -> list[dict[str, Any]]:
raw_results = record.get("ocr_results")
if not isinstance(raw_results, list):
return []
return [result for result in raw_results if isinstance(result, dict)]
def _ui_tree_nodes(record: dict[str, Any]) -> list[dict[str, Any]]:
raw_nodes = record.get("ui_tree_results")
if not isinstance(raw_nodes, list):
return []
return [node for node in raw_nodes if isinstance(node, dict)]
def _overlay_payload(record: dict[str, Any]) -> dict[str, Any]:
"""Combined perception elements + screen size for client-side bounding-box
overlay and action-effect rendering on the before-screenshot.
"""
scene = record.get("scene")
screen = scene.get("screen") if isinstance(scene, dict) else None
width = screen.get("width") if isinstance(screen, dict) else None
height = screen.get("height") if isinstance(screen, dict) else None
elements = scene.get("elements") if isinstance(scene, dict) else None
return {
"width": width if isinstance(width, (int, float)) else 0,
"height": height if isinstance(height, (int, float)) else 0,
"elements": [element for element in elements if isinstance(element, dict)]
if isinstance(elements, list)
else [],
}
def _timeline_step_context(record: dict[str, Any]) -> dict[str, Any]:
tool_call = record.get("tool_call")
result = record.get("result")
return {
"index": record.get("index", ""),
"timestamp": record.get("timestamp", ""),
"prompt": record.get("prompt") or "",
"tool_call": tool_call if isinstance(tool_call, dict) else {},
"result": result if isinstance(result, dict) else {},
"before_screenshot_src": _screenshot_data_uri(
record, path_key="before_screenshot_path"
),
"after_screenshot_src": _screenshot_data_uri(
record, path_key="after_screenshot_path"
)
or _screenshot_data_uri(record),
"ocr_results": _ocr_results(record),
"ui_tree_nodes": _ui_tree_nodes(record),
"overlay": _overlay_payload(record),
}
def _safe_submission_error(detail: str) -> str:
"""Return a safe, single-line error message for the operator.
The Cloud response ``detail`` is treated as a static control-plane message;
we strip surrounding whitespace and reject empty results so the operator
never sees a blank error or, through Jinja autoescape, anything that could
carry unrendered HTML.
"""
cleaned = " ".join(str(detail).split()).strip()
return cleaned or "Cloud rejected the task submission."
def _extract_task_id(response: Any) -> str | None:
"""Normalize the Host self-submission return value to a Cloud task ID.
Tests and narrow protocol overrides may return a bare string while the
production client returns a pydantic model. Accept either so the rest of
the handler can rely on a single string ID.
"""
candidate: Any = response
if hasattr(candidate, "task_id"):
candidate = getattr(candidate, "task_id")
if not isinstance(candidate, str):
return None
cleaned = candidate.strip()
return cleaned or None
def _dashboard_texts(*, snapshot: dict[str, Any]) -> dict[str, str]:
"""Pre-compute human-readable text strings for the dashboard template."""
heartbeat = snapshot.get("last_heartbeat")
assignment = snapshot.get("current_assignment")
policy = snapshot.get("host_policy")
progress = snapshot.get("progress")
return {
"heartbeat_text": (
f"{'ok' if heartbeat['ok'] else 'failed'} at {heartbeat['at']} "
f"({heartbeat['device_count']} devices)"
if heartbeat
else "never"
),
"assignment_text": (
f"{assignment['task_id']} on {assignment['device_id']} "
f"(started {assignment['started_at']})"
if assignment
else "none"
),
"progress_text": (
f"step {progress['step_index']} \u2014 {progress['step_status']}: "
f"{progress['summary']}"
if progress
else ""
),
"policy_text": (
f"revision {policy['revision']}; self-submission "
f"{'enabled' if policy['self_submission_enabled'] else 'disabled'}; "
f"max active tasks {policy['max_active_tasks'] or 'unlimited'}; "
f"daily token budget {policy['daily_token_budget'] or 'unmetered'}"
if policy
else "no Cloud policy cached"
),
}
def create_console_app(
*,
config: HostAgentConfig,
manager: DeviceManager,
config_store: DeviceConfigStore,
local_account_store: LocalAccountStore,
identity_store: HostIdentityStore,
history_store: ConsoleHistoryStore,
status_tracker: AgentStatusTracker,
session_manager: SessionManager,
enrollment_client: HostAgentEnrollmentClient | None,
host_client: HostAgentClient | None = None,
submit_self_task: TaskSubmissionCallable | None = None,
cancel_task: TaskCancellationCallable | None = None,
metadata_store: TaskMetadataStore | None = None,
timeline: Timeline | None = None,
executor: AssignmentExecutor | None = None,
mcp_server: FastMCP | None = None,
mcp_token_store: McpTokenStore | None = None,
mcp_busy_tracker: McpBusyTracker | None = None,
conversation_agent: ConversationAgent | None = None,
conversation_log: ConversationLogStore | None = None,
) -> FastAPI:
app = FastAPI(title="Host Agent Console")
cookie_secure = config.console_bind_host not in _LOOPBACK_BIND_HOSTS
if submit_self_task is None and host_client is not None:
submit_self_task = host_client.submit_self_task
if cancel_task is None and host_client is not None:
cancel_task = host_client.cancel_task
submission_available = submit_self_task is not None
mcp_mounted = mcp_server is not None and mcp_token_store is not None
if mcp_mounted:
from starlette.applications import Starlette
from starlette.middleware import Middleware
mcp_asgi = mcp_server.streamable_http_app()
authed = Starlette(
routes=[],
middleware=[Middleware(BearerAuthMiddleware, token_store=mcp_token_store)],
)
authed.router.mount("/", mcp_asgi)
app.mount("/mcp", authed)
def _running_devices() -> list[dict[str, str]]:
return [
{
"id": device.id,
"label": device.name or device.id,
}
for device in manager.list_devices()
]
def _session_token(request: Request) -> str | None:
return request.cookies.get(SESSION_COOKIE_NAME)
def require_session(request: Request) -> SessionState:
token = _session_token(request)
state = session_manager.validate(token) if token else None
if state is None:
raise HTTPException(status_code=303, headers={"Location": "/login"})
return state
async def require_csrf(
request: Request,
session: SessionState = Depends(require_session),
) -> SessionState:
provided = request.headers.get(CSRF_HEADER_NAME)
if not provided:
form = await request.form()
raw = form.get(CSRF_FORM_FIELD)
provided = str(raw) if raw is not None else None
token = _session_token(request)
if (
not token
or not provided
or not session_manager.validate_csrf(token, provided)
):
raise HTTPException(status_code=403, detail="invalid CSRF token")
return session
@app.get("/login", response_class=HTMLResponse)
async def login_page() -> HTMLResponse:
account = await asyncio.to_thread(local_account_store.load)
return _render("login.html", title="Login", session=None, account=account)
@app.post("/login")
async def login_submit(request: Request) -> Response:
account = await asyncio.to_thread(local_account_store.load)
if account is None:
return _render("login.html", title="Login", session=None, account=None)
form = await request.form()
username = str(form.get("username", ""))
password = str(form.get("password", ""))
ok = await asyncio.to_thread(
attempt_login, local_account_store, username=username, password=password
)
if not ok:
return _render(
"login.html",
title="Login",
session=None,
account=account,
error="Invalid username or password.",
)
session_token, _ = session_manager.create_session(username)
response = RedirectResponse(url="/", status_code=303)
response.set_cookie(
key=SESSION_COOKIE_NAME,
value=session_token,
httponly=True,
samesite="strict",
secure=cookie_secure,
path="/",
)
return response
@app.post("/logout")
async def logout(
request: Request,
session: SessionState = Depends(require_csrf),
) -> Response:
token = _session_token(request)
if token:
session_manager.invalidate(token)
response = RedirectResponse(url="/login", status_code=303)
response.delete_cookie(key=SESSION_COOKIE_NAME, path="/")
return response
@app.get("/", response_class=HTMLResponse)
async def dashboard(
session: SessionState = Depends(require_session),
) -> HTMLResponse:
identity = await asyncio.to_thread(identity_store.load)
snapshot = status_tracker.snapshot()
busy_device_id = (
snapshot["current_assignment"]["device_id"]
if snapshot.get("current_assignment")
else None
)
devices = [
{
"id": d.id,
"name": d.name,
"driver_type": d.driver_type,
"display_status": _device_display_status(
d, busy_device_id=busy_device_id
),
}
for d in manager.list_devices()
]
texts = _dashboard_texts(snapshot=snapshot)
mcp_endpoint = "/mcp" if mcp_mounted else None
mcp_busy_devices = (
mcp_busy_tracker.busy_device_ids() if mcp_busy_tracker is not None else []
)
return _render(
"dashboard.html",
title="Status",
session=session,
identity=identity,
devices=devices,
config=config,
mcp_endpoint=mcp_endpoint,
mcp_busy_devices=mcp_busy_devices,
**texts,
)
@app.get("/api/status")
async def api_status(
session: SessionState = Depends(require_session),
) -> JSONResponse:
snapshot = status_tracker.snapshot()
if executor is not None and snapshot.get("progress") is None:
live = executor.latest_progress()
if live is not None:
snapshot["progress"] = {
"step_index": live.step_index,
"step_status": live.step_status,
"summary": live.summary,
"updated_at": live.updated_at.isoformat(),
}
current_assignment = snapshot.get("current_assignment")
busy_device_id = current_assignment["device_id"] if current_assignment else None
devices = [
{
"id": device.id,
"name": device.name,
"driver_type": device.driver_type,
"status": _device_display_status(device, busy_device_id=busy_device_id),
}
for device in manager.list_devices()
]
return JSONResponse(
{
"status": snapshot,
"devices": devices,
"mcp_endpoint": "/mcp" if mcp_mounted else None,
"mcp_busy_devices": (
mcp_busy_tracker.busy_device_ids()
if mcp_busy_tracker is not None
else []
),
}
)
@app.post("/api/chat")
async def api_chat(
request: Request,
session: SessionState = Depends(require_csrf),
) -> JSONResponse:
if conversation_agent is None:
raise HTTPException(status_code=503, detail="chat agent is not configured")
payload = await request.json()
raw_messages = payload.get("messages") if isinstance(payload, dict) else None
if not isinstance(raw_messages, list) or not raw_messages:
raise HTTPException(status_code=400, detail="messages must be a non-empty list")
messages = [
{key: value for key, value in item.items() if key in {"role", "content", "image_base64", "mime_type", "text"}}
for item in raw_messages
if isinstance(item, dict)
and item.get("role") in {"user", "assistant"}
and (isinstance(item.get("content"), (str, list)) or isinstance(item.get("image_base64"), str))
]
if not messages:
raise HTTPException(status_code=400, detail="messages are invalid")
result = await asyncio.to_thread(conversation_agent.chat, messages)
return JSONResponse(
{"content": result.content, "tool_calls": result.tool_calls}
)
@app.get("/devices", response_class=HTMLResponse)
async def devices_page(
request: Request,
session: SessionState = Depends(require_session),
) -> HTMLResponse:
devices = await asyncio.to_thread(config_store.list)
edit_id = request.query_params.get("edit")
edit_record = (
await asyncio.to_thread(config_store.get, edit_id) if edit_id else None
)
connection_info_json = (
json.dumps(edit_record["connection_info"]) if edit_record else "{}"
)
return _render(
"devices.html",
title="Devices",
session=session,
devices=devices,
csrf_token=session.csrf_token,
edit_record=edit_record,
connection_info_json=connection_info_json,
error=None,
)
@app.post("/devices/save")
async def devices_save(
request: Request,
session: SessionState = Depends(require_csrf),
) -> Response:
form = await request.form()
device_id = str(form.get("device_id", "")).strip()
driver_type = str(form.get("driver_type", "")).strip()
name = str(form.get("name", "")).strip() or None
connection_info_raw = str(form.get("connection_info", "") or "{}")
error: str | None = None
connection_info: dict[str, Any] = {}
if not device_id or not driver_type:
error = "Device ID and driver type are required."
else:
try:
parsed = json.loads(connection_info_raw)
except ValueError:
error = "Connection info must be valid JSON."
else:
if not isinstance(parsed, dict):
error = "Connection info must be a JSON object."
else:
connection_info = parsed
if error is None:
try:
await asyncio.to_thread(
register_local_device,
config_store,
manager,
device_id=device_id,
driver_type=driver_type,
connection_info=connection_info,
name=name,
config=config,
enrollment_client=enrollment_client,
)
except ValueError as exc:
error = str(exc)
if error is not None:
devices = await asyncio.to_thread(config_store.list)
return _render(
"devices.html",
title="Devices",
session=session,
devices=devices,
csrf_token=session.csrf_token,
edit_record=None,
connection_info_json="{}",
error=error,
status_code=400,
)
return RedirectResponse(url="/devices", status_code=303)
@app.post("/devices/remove")
async def devices_remove(
request: Request,
session: SessionState = Depends(require_csrf),
) -> Response:
form = await request.form()
device_id = str(form.get("device_id", "")).strip()
if device_id:
await asyncio.to_thread(
unregister_local_device, config_store, manager, device_id=device_id
)
return RedirectResponse(url="/devices", status_code=303)
@app.get("/account", response_class=HTMLResponse)
async def account_page(
session: SessionState = Depends(require_session),
) -> HTMLResponse:
return _render(
"account.html",
title="Account",
session=session,
csrf_token=session.csrf_token,
message=None,
error=None,
)
@app.post("/account", response_class=HTMLResponse)
async def account_submit(
request: Request,
session: SessionState = Depends(require_csrf),
) -> HTMLResponse:
form = await request.form()
current_password = str(form.get("current_password", ""))
new_password = str(form.get("new_password", ""))
confirm_password = str(form.get("confirm_password", ""))
if not new_password or new_password != confirm_password:
return _render(
"account.html",
title="Account",
session=session,
csrf_token=session.csrf_token,
message=None,
error="New password and confirmation must match.",
status_code=400,
)
ok = await asyncio.to_thread(
change_password,
local_account_store,
current_password=current_password,
new_password=new_password,
)
if not ok:
return _render(
"account.html",
title="Account",
session=session,
csrf_token=session.csrf_token,
message=None,
error="Current password is incorrect.",
status_code=400,
)
return _render(
"account.html",
title="Account",
session=session,
csrf_token=session.csrf_token,
message="Password updated.",
error=None,
)
@app.get("/history", response_class=HTMLResponse)
async def history_page(
session: SessionState = Depends(require_session),
) -> HTMLResponse:
entries = await asyncio.to_thread(history_store.list_recent)
return _render(
"history.html",
title="History",
session=session,
entries=entries,
)
@app.get("/conversations", response_class=HTMLResponse)
async def conversations_page(
session: SessionState = Depends(require_session),
) -> HTMLResponse:
events = await asyncio.to_thread(
conversation_log.list_recent if conversation_log is not None else (lambda: [])
)
return _render("conversations.html", title="Conversations", session=session, events=events)
def _tasks_list_context(
session: SessionState,
*,
goal_value: str = "",
selected_device: str = AUTOMATIC_DEVICE_VALUE,
submission_error: str | None = None,
submission_notice: str | None = None,
submission_unknown: bool = False,
status_code: int = 200,
) -> dict[str, Any]:
devices = _running_devices()
return {
"title": "Tasks",
"session": session,
"csrf_token": session.csrf_token,
"tasks": metadata_store.list_tasks() if metadata_store is not None else [],
"metadata_store_missing": metadata_store is None,
"devices": devices,
"automatic_device_value": AUTOMATIC_DEVICE_VALUE,
"selected_device": selected_device
if any(d["id"] == selected_device for d in devices)
or selected_device == AUTOMATIC_DEVICE_VALUE
else AUTOMATIC_DEVICE_VALUE,
"submission_available": submission_available,
"goal_value": goal_value,
"submission_error": submission_error,
"submission_notice": submission_notice,
"submission_unknown": submission_unknown,
"status_code": status_code,
}
@app.get("/tasks", response_class=HTMLResponse)
async def tasks_page(
request: Request,
session: SessionState = Depends(require_session),
) -> HTMLResponse:
if metadata_store is None:
raise HTTPException(
status_code=503, detail="task metadata store not configured"
)
notice: str | None = None
unknown = False
error: str | None = None
if request.query_params.get("submitted") == "1":
task_id = request.query_params.get("task_id", "")
if task_id:
notice = (
f"Task submitted. Cloud task ID: {task_id}. "
"It will appear below when this Host begins executing it."
)
elif request.query_params.get("outcome") == "unknown":
unknown = True
context = _tasks_list_context(
session,
submission_notice=notice,
submission_unknown=unknown,
submission_error=error,
)
return _render(
"tasks_list.html",
status_code=context["status_code"],
**{k: v for k, v in context.items() if k != "status_code"},
)
@app.post("/tasks/submit", response_class=HTMLResponse)
async def tasks_submit(
request: Request,
session: SessionState = Depends(require_csrf),
) -> Response:
if metadata_store is None:
raise HTTPException(
status_code=503, detail="task metadata store not configured"
)
if submit_self_task is None:
context = _tasks_list_context(
session,
submission_error=(
"Host submission client is not available yet. "
"Wait for Host enrollment to complete, then retry."
),
)
return _render(
"tasks_list.html",
status_code=503,
**{k: v for k, v in context.items() if k != "status_code"},
)
form = await request.form()
raw_goal = str(form.get("goal", ""))
goal = raw_goal.strip()
device_selection = str(form.get("device_id", AUTOMATIC_DEVICE_VALUE)).strip()
explicit_device_id: str | None = None
if device_selection and device_selection != AUTOMATIC_DEVICE_VALUE:
snapshot_ids = {device.id for device in manager.list_devices()}
if device_selection not in snapshot_ids:
context = _tasks_list_context(
session,
goal_value=goal,
selected_device=device_selection,
submission_error=(
"Selected device is no longer registered. "
"Refresh and try again."
),
)
return _render(
"tasks_list.html",
status_code=400,
**{k: v for k, v in context.items() if k != "status_code"},
)
explicit_device_id = device_selection
if not goal:
context = _tasks_list_context(
session,
goal_value=goal,
selected_device=device_selection or AUTOMATIC_DEVICE_VALUE,
submission_error="Goal cannot be empty.",
)
return _render(
"tasks_list.html",
status_code=400,
**{k: v for k, v in context.items() if k != "status_code"},
)
try:
response = await submit_self_task(goal=goal, device_id=explicit_device_id)
except HostAgentAPIError as exc:
context = _tasks_list_context(
session,
goal_value=goal,
selected_device=device_selection,
submission_error=_safe_submission_error(str(exc.detail)),
)
return _render(
"tasks_list.html",
status_code=502,
**{k: v for k, v in context.items() if k != "status_code"},
)
except HostTaskSubmissionUnknownError:
return RedirectResponse(
url="/tasks?outcome=unknown",
status_code=303,
)
task_id = _extract_task_id(response)
if task_id is None:
context = _tasks_list_context(
session,
goal_value=goal,
selected_device=device_selection,
submission_error=(
"Host submission client returned an unexpected response."
),
)
return _render(
"tasks_list.html",
status_code=502,
**{k: v for k, v in context.items() if k != "status_code"},
)
try:
await asyncio.to_thread(
history_store.record_task_submission,
task_id=task_id,
device_id=explicit_device_id,
)
except Exception:
pass
params = f"submitted=1&task_id={task_id}"
return RedirectResponse(url=f"/tasks?{params}", status_code=303)
@app.get("/tasks/{task_id}", response_class=HTMLResponse)
async def task_detail_page(
task_id: str,
request: Request,
session: SessionState = Depends(require_session),
) -> HTMLResponse:
if metadata_store is None:
raise HTTPException(
status_code=503, detail="task metadata store not configured"
)
task = await asyncio.to_thread(metadata_store.get_task, task_id)
if task is None:
raise HTTPException(status_code=404, detail="task not found")
timeline_records: list[dict[str, Any]] = []
if timeline is not None:
timeline_records = await asyncio.to_thread(timeline.read, task_id)
task_rows = [
(label, task[key])
for key, label in (
("source_task_id", "Cloud task ID"),
("source_attempt", "Cloud attempt"),
("id", "Execution ID"),
("goal", "Goal"),
("device_id", "Device"),
("status", "Status"),
("created_at", "Created"),
("updated_at", "Updated"),
("completed_at", "Completed"),
("failure_reason", "Failure reason"),
)
if task.get(key) is not None
]
timeline_steps = [_timeline_step_context(record) for record in timeline_records]
can_cancel = (
cancel_task is not None
and task.get("source_task_id") is not None
and task.get("status") not in _TERMINAL_LOCAL_TASK_STATUSES
)
cancel_notice = (
"Cancellation requested. It may take a moment to take effect."
if request.query_params.get("cancelled") == "1"
else None
)
cancel_error = (
"Failed to request cancellation. Try again."
if request.query_params.get("cancel_error") == "1"
else None
)
return _render(
"task_detail.html",
title=f"Task {task_id}",
session=session,
csrf_token=session.csrf_token,
task=task,
task_rows=task_rows,
timeline_steps=timeline_steps,
can_cancel=can_cancel,
cancel_notice=cancel_notice,
cancel_error=cancel_error,
)
@app.post("/tasks/{task_id}/cancel")
async def tasks_cancel(
task_id: str,
session: SessionState = Depends(require_csrf),
) -> Response:
if metadata_store is None:
raise HTTPException(
status_code=503, detail="task metadata store not configured"
)
task = await asyncio.to_thread(metadata_store.get_task, task_id)
if task is None:
raise HTTPException(status_code=404, detail="task not found")
source_task_id = task.get("source_task_id")
if cancel_task is None or source_task_id is None:
return RedirectResponse(
url=f"/tasks/{task_id}?cancel_error=1", status_code=303
)
try:
await cancel_task(source_task_id)
except HostAgentAPIError:
return RedirectResponse(
url=f"/tasks/{task_id}?cancel_error=1", status_code=303
)
return RedirectResponse(url=f"/tasks/{task_id}?cancelled=1", status_code=303)
return app