agent-Specialization/server/tasks/models.py

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"""简单任务 API将聊天任务与 WebSocket 解耦,支持后台运行与轮询。"""
from __future__ import annotations
from server.tasks import tasks_bp
import mimetypes
import json
import time
import threading
import uuid
import re
from collections import deque
from pathlib import Path
from typing import Dict, Any, Optional, List
from flask import Blueprint, request, jsonify
from flask import current_app, session
from server.auth_helpers import api_login_required, get_current_username
from server.context import get_user_resources, ensure_conversation_loaded
from server.chat_flow import run_chat_task_sync
from server.state import stop_flags
from server.utils_common import debug_log, log_conn_diag
from utils.host_workspace_debug import write_host_workspace_debug
from config import DATA_DIR, WORKSPACE_SKILLS_DIRNAME
from modules.goal_state_manager import GoalStateManager, REASON_USER_CANCEL
from modules.sub_agent.state import TERMINAL_STATUSES as SUB_AGENT_TERMINAL_STATUSES
from modules.background_command_manager import BackgroundCommandManager, TERMINAL_STATUSES as BG_COMMAND_TERMINAL_STATUSES
SKILL_FRONTMATTER_RE = re.compile(r"^---\s*\n(?P<body>.*?)\n---\s*\n?", re.S)
SKILL_FIELD_RE = re.compile(r"^(?P<key>name|description)\s*:\s*(?P<value>.*)$")
class TaskRecord:
__slots__ = (
"task_id",
"username",
"workspace_id",
"status",
"created_at",
"updated_at",
"message",
"conversation_id",
"events",
"thread",
"error",
"model_key",
"thinking_mode",
"run_mode",
"max_iterations",
"session_data",
"stop_requested",
"next_event_idx",
"runtime_pending_queue",
"runtime_guidance_queue",
"last_cancel_at",
)
def __init__(
self,
task_id: str,
username: str,
workspace_id: str,
message: str,
conversation_id: Optional[str],
model_key: Optional[str],
thinking_mode: Optional[bool],
run_mode: Optional[str],
max_iterations: Optional[int],
):
self.task_id = task_id
self.username = username
self.workspace_id = workspace_id
self.status = "pending"
self.created_at = time.time()
self.updated_at = self.created_at
self.message = message
self.conversation_id = conversation_id
# 刷新恢复时前端会从事件流重建进行中的输出1000 在长流式回复下会过早截断,
# 导致“只恢复最后几个字符”。这里提高缓冲上限,优先保证重建完整性。
self.events: deque[Dict[str, Any]] = deque(maxlen=20000)
self.thread: Optional[threading.Thread] = None
self.error: Optional[str] = None
self.model_key = model_key
self.thinking_mode = thinking_mode
self.run_mode = run_mode
self.max_iterations = max_iterations
self.session_data: Dict[str, Any] = {}
self.stop_requested: bool = False
self.next_event_idx: int = 0
self.runtime_pending_queue: List[Dict[str, Any]] = []
self.runtime_guidance_queue: List[str] = []
self.last_cancel_at: Optional[float] = None
class TaskManager:
"""线程内存版任务管理器,后续可替换为 Redis/DB。"""
def __init__(self):
self._tasks: Dict[str, TaskRecord] = {}
self._lock = threading.Lock()
def cleanup_old_tasks(self, max_age_seconds: int = 3600) -> int:
"""清理超过指定时间的已完成任务"""
now = time.time()
with self._lock:
to_remove = []
for task_id, rec in self._tasks.items():
if rec.status in {"succeeded", "failed", "canceled"}:
age = now - rec.updated_at
if age > max_age_seconds:
to_remove.append(task_id)
for task_id in to_remove:
del self._tasks[task_id]
return len(to_remove)
# ---- public APIs ----
def create_chat_task(
self,
username: str,
workspace_id: str,
message: str,
images: List[Any],
conversation_id: Optional[str],
videos: Optional[List[Any]] = None,
model_key: Optional[str] = None,
thinking_mode: Optional[bool] = None,
run_mode: Optional[str] = None,
max_iterations: Optional[int] = None,
session_data: Optional[Dict[str, Any]] = None,
message_source: Optional[str] = None,
goal_mode: bool = False,
skill_context_messages: Optional[List[Dict[str, str]]] = None,
) -> TaskRecord:
if run_mode:
normalized = str(run_mode).lower()
if normalized not in {"fast", "thinking", "deep"}:
raise ValueError("run_mode 只支持 fast/thinking/deep")
run_mode = normalized
# 单工作区互斥:禁止同一用户同一工作区并发任务
existing = [t for t in self.list_tasks(username, workspace_id) if t.status in {"pending", "running"}]
if existing:
raise RuntimeError("当前工作区已有运行中的任务,请稍后再试。")
task_id = str(uuid.uuid4())
record = TaskRecord(task_id, username, workspace_id, message, conversation_id, model_key, thinking_mode, run_mode, max_iterations)
# 记录当前 session 快照,便于后台线程内使用
if session_data is not None:
snapshot = dict(session_data)
snapshot.setdefault("workspace_id", workspace_id)
if message_source is not None:
snapshot.setdefault("message_source", str(message_source))
snapshot["goal_mode"] = bool(goal_mode)
if skill_context_messages:
snapshot["skill_context_messages"] = list(skill_context_messages)
try:
snapshot.setdefault("host_mode", session.get("host_mode"))
if snapshot.get("host_mode"):
snapshot.setdefault("host_workspace_id", session.get("host_workspace_id") or workspace_id)
except Exception:
if snapshot.get("host_mode"):
snapshot.setdefault("host_workspace_id", workspace_id)
record.session_data = snapshot
else:
try:
record.session_data = {
"username": session.get("username"),
"role": session.get("role"),
"is_api_user": session.get("is_api_user"),
"host_mode": session.get("host_mode"),
"host_workspace_id": session.get("host_workspace_id") or workspace_id,
"workspace_id": workspace_id,
"run_mode": session.get("run_mode"),
"thinking_mode": session.get("thinking_mode"),
"model_key": session.get("model_key"),
"message_source": str(message_source) if message_source is not None else None,
"goal_mode": bool(goal_mode),
"skill_context_messages": list(skill_context_messages or []),
}
except Exception:
record.session_data = {}
with self._lock:
self._tasks[task_id] = record
thread = threading.Thread(target=self._run_chat_task, args=(record, images, videos or []), daemon=True)
record.thread = thread
record.status = "running"
record.updated_at = time.time()
thread.start()
return record
def get_task(self, username: str, task_id: str) -> Optional[TaskRecord]:
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return None
return rec
def list_tasks(self, username: str, workspace_id: Optional[str] = None) -> List[TaskRecord]:
with self._lock:
return [
rec
for rec in self._tasks.values()
if rec.username == username and (workspace_id is None or rec.workspace_id == workspace_id)
]
def cancel_task(self, username: str, task_id: str) -> bool:
rec = self.get_task(username, task_id)
if not rec:
debug_log(f"[TaskCancel] cancel_task 找不到任务: task_id={task_id}")
return False
# 立即快照进入时的状态,后续所有两段式判断都用它。
# _run_chat_task finally 会在硬取消后并发修改 rec.status
# 如果后面再读会被误判为第二下。
status_at_entry = rec.status
debug_log(
f"[TaskCancel] 入口: task_id={task_id}, status={status_at_entry}, "
f"conversation_id={rec.conversation_id}, workspace_id={rec.workspace_id}"
)
# 1. 硬取消主 asyncio task如果引用还在
entry = stop_flags.get(task_id)
terminal = None
if isinstance(entry, dict):
terminal = entry.get('terminal')
loop = entry.get('loop')
task = entry.get('task')
debug_log(
f"[TaskCancel] stop_flags entry: loop_exists={loop is not None}, "
f"task_exists={task is not None}, task_done={task.done() if task else 'n/a'}"
)
if loop and task and not task.done():
try:
loop.call_soon_threadsafe(task.cancel)
debug_log(f"[TaskCancel] 已投递硬取消: task_id={task_id}")
except Exception as exc:
debug_log(f"[TaskCancel] 硬取消失败: task_id={task_id}, error={exc}")
entry['stop'] = True
else:
debug_log(f"[TaskCancel] stop_flags 无 entry设软标志: task_id={task_id}")
stop_flags[task_id] = {'stop': True, 'task': None, 'terminal': None, 'loop': None}
entry = stop_flags[task_id]
rec.stop_requested = True
# 2. 停止目标模式
workspace = None
if rec.workspace_id:
try:
_, workspace = get_user_resources(username, rec.workspace_id)
if workspace:
gsm = GoalStateManager(workspace.data_dir)
if gsm.is_active():
gsm.mark_stopped(REASON_USER_CANCEL)
debug_log(f"[Goal] 用户取消任务 {task_id},同步停止工作区目标模式")
except Exception as exc:
debug_log(f"[Goal] 取消任务时停止目标模式失败: {exc}")
# 3. 丢弃已经引导的内容(预输入队列保持不变,正常结束后再插入)
with self._lock:
rec.runtime_guidance_queue = []
rec.updated_at = time.time()
# 4. 两段式停止:严格按进入时的 rec.status 判断(快照),不依赖 task.done() 的异步时机。
# 原因:投递硬取消后 _run_chat_task finally 可能并发把 status 改成 cancel_requested
# 若此时再读 rec.status 会误判为第二下,导致第一下就误杀后台。
# - 第一下running/pending只硬取消主智能体并置为 cancel_requested保留后台任务。
# - 第二下cancel_requested/stopped/canceled清理后台任务并置为 stopped。
# - 额外保护:极短时间内(<500ms的重复 cancel 请求视为抖动,不执行第二下。
now = time.time()
is_first_press = status_at_entry in {"running", "pending"}
if not terminal and rec.workspace_id:
try:
terminal, _ = get_user_resources(username, rec.workspace_id)
except Exception as exc:
debug_log(f"[TaskCancel] 取消任务时重新获取 terminal 失败: {exc}")
if is_first_press:
# 第一下:主智能体仍在跑,只请求取消,保留后台任务。
# 注意 1不要清空 rec.events否则 _run_chat_task finally 发送的
# task_stopped 事件会被丢弃,前端无法感知并弹提示。
# 注意 2_run_chat_task finally 可能并发先执行并把 status 设为 stopped
# 此时不要再覆盖回 cancel_requested。
with self._lock:
if rec.status in {"running", "pending"}:
rec.status = "cancel_requested"
rec.updated_at = now
rec.last_cancel_at = now
debug_log(
f"[TaskCancel] 第一下:请求取消智能体,保留后台任务: "
f"task_id={task_id}, status_at_entry={status_at_entry}, "
f"current_status={rec.status}"
)
return True
# 第二下:清理后台任务(过滤 500ms 内的重复请求)
if rec.last_cancel_at is not None and (now - rec.last_cancel_at) < 0.5:
debug_log(
f"[TaskCancel] 忽略 500ms 内重复取消请求: task_id={task_id}, "
f"elapsed={now - rec.last_cancel_at:.3f}s"
)
return True
has_running_background = self._cleanup_background_tasks(rec, terminal)
with self._lock:
rec.status = "stopped"
rec.updated_at = time.time()
rec.last_cancel_at = time.time()
rec.events.clear()
debug_log(
f"[TaskCancel] 第二下:清理后台并停止: task_id={task_id}, "
f"has_running_background={has_running_background}"
)
try:
from server.extensions import socketio
socketio.emit('task_stopped', {
'message': '任务已停止',
'reason': 'user_requested',
'task_id': task_id,
'conversation_id': rec.conversation_id,
'has_running_sub_agents': False,
'has_running_background_commands': False,
}, room=f"user_{username}")
except Exception as exc:
debug_log(f"[TaskCancel] 发送 task_stopped 事件失败: {exc}")
return True
@staticmethod
def _normalize_runtime_pending_queue(raw_queue: Any) -> List[Dict[str, Any]]:
now_ts = time.time()
normalized: List[Dict[str, Any]] = []
if not isinstance(raw_queue, list):
return normalized
for raw_item in raw_queue:
if isinstance(raw_item, dict):
item_id = str(raw_item.get("id") or "").strip()
text = str(raw_item.get("text") or "").strip()
created_at = raw_item.get("created_at")
else:
item_id = ""
text = str(raw_item or "").strip()
created_at = None
if not text:
continue
if not item_id:
item_id = str(uuid.uuid4())
try:
created_at_float = float(created_at)
except Exception:
created_at_float = now_ts
normalized.append(
{
"id": item_id,
"text": text,
"created_at": created_at_float,
}
)
return normalized
@staticmethod
def _runtime_pending_public(queue: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
result: List[Dict[str, Any]] = []
for item in queue or []:
if not isinstance(item, dict):
continue
text = str(item.get("text") or "").strip()
item_id = str(item.get("id") or "").strip()
if not text or not item_id:
continue
result.append(
{
"id": item_id,
"text": text,
"created_at": item.get("created_at"),
}
)
return result
def enqueue_runtime_pending_message(
self, username: str, task_id: str, message: str, max_queue_size: int = 5
) -> Dict[str, Any]:
text = str(message or "").strip()
if not text:
return {"success": False, "code": "empty_message", "error": "消息不能为空"}
limit = int(max(1, max_queue_size))
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return {"success": False, "code": "task_not_found", "error": "任务不存在"}
if rec.status not in {"pending", "running", "cancel_requested"}:
return {"success": False, "code": "task_not_running", "error": "任务已结束,无法追加消息"}
queue = self._normalize_runtime_pending_queue(getattr(rec, "runtime_pending_queue", None))
if len(queue) >= limit:
return {
"success": False,
"code": "queue_full",
"error": f"堆积消息已满(最多 {limit} 条)",
}
item = {
"id": str(uuid.uuid4()),
"text": text,
"created_at": time.time(),
}
queue.append(item)
rec.runtime_pending_queue = queue
rec.updated_at = time.time()
return {
"success": True,
"task_id": rec.task_id,
"item": item,
"messages": self._runtime_pending_public(queue),
}
def remove_runtime_pending_message(
self, username: str, task_id: str, message_id: str
) -> Dict[str, Any]:
target_id = str(message_id or "").strip()
if not target_id:
return {"success": False, "code": "invalid_message_id", "error": "消息ID无效"}
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return {"success": False, "code": "task_not_found", "error": "任务不存在"}
queue = self._normalize_runtime_pending_queue(getattr(rec, "runtime_pending_queue", None))
remove_idx = -1
for idx, item in enumerate(queue):
if str(item.get("id") or "") == target_id:
remove_idx = idx
break
if remove_idx < 0:
return {"success": False, "code": "message_not_found", "error": "消息不存在"}
queue.pop(remove_idx)
rec.runtime_pending_queue = queue
rec.updated_at = time.time()
return {
"success": True,
"task_id": rec.task_id,
"messages": self._runtime_pending_public(queue),
}
def promote_runtime_pending_to_guidance(
self,
username: str,
task_id: str,
message_id: str,
max_guidance_queue_size: int = 5,
) -> Dict[str, Any]:
target_id = str(message_id or "").strip()
if not target_id:
return {"success": False, "code": "invalid_message_id", "error": "消息ID无效"}
guidance_limit = int(max(1, max_guidance_queue_size))
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return {"success": False, "code": "task_not_found", "error": "任务不存在"}
if rec.status not in {"pending", "running", "cancel_requested"}:
return {"success": False, "code": "task_not_running", "error": "任务已结束,无法引导"}
queue = self._normalize_runtime_pending_queue(getattr(rec, "runtime_pending_queue", None))
guidance_queue = getattr(rec, "runtime_guidance_queue", None)
if not isinstance(guidance_queue, list):
guidance_queue = []
if len(guidance_queue) >= guidance_limit:
return {
"success": False,
"code": "guidance_queue_full",
"error": f"引导队列已满(最多 {guidance_limit} 条)",
}
selected = None
remain_queue: List[Dict[str, Any]] = []
for item in queue:
if selected is None and str(item.get("id") or "") == target_id:
selected = item
continue
remain_queue.append(item)
if not selected:
return {"success": False, "code": "message_not_found", "error": "消息不存在"}
selected_text = str(selected.get("text") or "").strip()
if not selected_text:
return {"success": False, "code": "empty_message", "error": "消息内容为空"}
guidance_queue.append(selected_text)
rec.runtime_guidance_queue = guidance_queue
rec.runtime_pending_queue = remain_queue
rec.updated_at = time.time()
return {
"success": True,
"task_id": rec.task_id,
"queued_count": len(guidance_queue),
"messages": self._runtime_pending_public(remain_queue),
}
def get_runtime_pending_messages(self, username: str, task_id: str) -> List[Dict[str, Any]]:
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return []
queue = self._normalize_runtime_pending_queue(getattr(rec, "runtime_pending_queue", None))
rec.runtime_pending_queue = queue
return self._runtime_pending_public(queue)
def enqueue_runtime_guidance(
self,
username: str,
task_id: str,
message: str,
max_queue_size: int = 5,
source: Optional[str] = None,
) -> Dict[str, Any]:
text = str(message or "").strip()
if not text:
return {"success": False, "code": "empty_message", "error": "引导内容不能为空"}
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return {"success": False, "code": "task_not_found", "error": "任务不存在"}
if rec.status not in {"pending", "running", "cancel_requested"}:
return {"success": False, "code": "task_not_running", "error": "任务已结束,无法追加引导"}
queue = getattr(rec, "runtime_guidance_queue", None)
if not isinstance(queue, list):
queue = []
rec.runtime_guidance_queue = queue
if len(queue) >= int(max(1, max_queue_size)):
return {
"success": False,
"code": "queue_full",
"error": f"引导队列已满(最多 {int(max(1, max_queue_size))} 条)",
}
normalized_source = str(source or "").strip().lower()
if normalized_source:
queue.append({"text": text, "source": normalized_source})
else:
queue.append(text)
rec.updated_at = time.time()
return {
"success": True,
"queued_count": len(queue),
"task_id": rec.task_id,
}
def pop_runtime_guidance_for_injection(self, username: str, task_id: str) -> Optional[Any]:
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return None
queue = getattr(rec, "runtime_guidance_queue", None)
if not isinstance(queue, list) or not queue:
return None
item = queue.pop(0)
rec.updated_at = time.time()
if isinstance(item, dict):
text = str(item.get("text") or "").strip()
if not text:
return None
src = str(item.get("source") or "").strip().lower()
return {"text": text, "source": src} if src else {"text": text}
text = str(item or "").strip()
return text or None
def consume_runtime_guidance_messages(self, username: str, task_id: str) -> List[str]:
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return []
queue = getattr(rec, "runtime_guidance_queue", None)
if not isinstance(queue, list) or not queue:
return []
items: List[str] = []
for item in queue:
if isinstance(item, dict):
text = str(item.get("text") or "").strip()
else:
text = str(item or "").strip()
if text:
items.append(text)
rec.runtime_guidance_queue = []
rec.updated_at = time.time()
return items
def consume_runtime_guidance_for_injection(self, username: str, task_id: str) -> List[Any]:
"""按原始结构取出整批引导/通知消息(支持 str 与 {text,source})。"""
with self._lock:
rec = self._tasks.get(task_id)
if not rec or rec.username != username:
return []
queue = getattr(rec, "runtime_guidance_queue", None)
if not isinstance(queue, list) or not queue:
return []
items: List[Any] = []
for item in queue:
if isinstance(item, dict):
text = str(item.get("text") or "").strip()
if not text:
continue
src = str(item.get("source") or "").strip().lower()
items.append({"text": text, "source": src} if src else {"text": text})
else:
text = str(item or "").strip()
if text:
items.append(text)
rec.runtime_guidance_queue = []
rec.updated_at = time.time()
return items
# ---- internal helpers ----
def _cleanup_background_tasks(self, rec: TaskRecord, terminal: Optional[Any]) -> bool:
"""清理指定任务/对话下的所有后台子智能体和后台命令,返回是否清理到任何任务。"""
has_running_background = False
if not terminal or not rec.conversation_id:
return has_running_background
sub_agent_manager = getattr(terminal, 'sub_agent_manager', None)
if sub_agent_manager:
try:
sub_agent_manager.reconcile_task_states(conversation_id=rec.conversation_id)
for task_info in list(sub_agent_manager.tasks.values()):
if task_info.get('conversation_id') != rec.conversation_id:
continue
status = task_info.get('status')
if status not in SUB_AGENT_TERMINAL_STATUSES.union({"terminated"}):
has_running_background = True
try:
sub_agent_manager.terminate_sub_agent(task_id=task_info.get('task_id'))
except Exception as exc:
debug_log(f"[TaskCancel] 终止子智能体失败: {exc}")
except Exception as exc:
debug_log(f"[TaskCancel] 检查后台子智能体失败: {exc}")
bg_manager = getattr(terminal, 'background_command_manager', None)
if bg_manager:
try:
bg_manager.reconcile_stale_records(conversation_id=rec.conversation_id)
waiting_items = bg_manager.list_waiting_items(rec.conversation_id)
for item in waiting_items:
has_running_background = True
try:
bg_manager.cancel_command(item.get('command_id'))
except Exception as exc:
debug_log(f"[TaskCancel] 取消后台命令失败: {exc}")
# 把该对话下所有未通知的终态记录也标为已通知,避免后续幽灵通知
try:
with bg_manager._lock:
for record in bg_manager._records.values():
if record.get('conversation_id') != rec.conversation_id:
continue
if record.get('status') in BG_COMMAND_TERMINAL_STATUSES and not record.get('notified'):
record['notified'] = True
record['updated_at'] = time.time()
except Exception as exc:
debug_log(f"[TaskCancel] 标记后台通知状态失败: {exc}")
except Exception as exc:
debug_log(f"[TaskCancel] 检查后台命令失败: {exc}")
return has_running_background
@staticmethod
def _has_running_background(rec: TaskRecord, terminal: Optional[Any]) -> Dict[str, bool]:
"""检测指定任务/对话是否还有运行中的后台子智能体或后台命令。"""
result = {"has_running_sub_agents": False, "has_running_background_commands": False}
if not terminal or not rec.conversation_id:
return result
sub_agent_manager = getattr(terminal, 'sub_agent_manager', None)
if sub_agent_manager:
try:
sub_agent_manager.reconcile_task_states(conversation_id=rec.conversation_id)
for task_info in sub_agent_manager.tasks.values():
if task_info.get('conversation_id') != rec.conversation_id:
continue
status = task_info.get('status')
if status not in SUB_AGENT_TERMINAL_STATUSES.union({"terminated"}):
result["has_running_sub_agents"] = True
break
except Exception as exc:
debug_log(f"[Task] 检查后台子智能体失败: {exc}")
bg_manager = getattr(terminal, 'background_command_manager', None)
if bg_manager:
try:
bg_manager.reconcile_stale_records(conversation_id=rec.conversation_id)
waiting_items = bg_manager.list_waiting_items(rec.conversation_id)
if waiting_items:
result["has_running_background_commands"] = True
except Exception as exc:
debug_log(f"[Task] 检查后台命令失败: {exc}")
return result
def _append_event(self, rec: TaskRecord, event_type: str, data: Dict[str, Any]):
if isinstance(data, dict):
data = dict(data)
data.setdefault("task_id", rec.task_id)
if rec.conversation_id:
data.setdefault("conversation_id", rec.conversation_id)
if rec.workspace_id:
data.setdefault("workspace_id", rec.workspace_id)
with self._lock:
if event_type in {"goal_progress", "goal_completed", "goal_stopped"} and isinstance(data, dict):
rec.session_data["goal_progress"] = dict(data)
idx = getattr(rec, "next_event_idx", None)
if idx is None:
idx = rec.events[-1]["idx"] + 1 if rec.events else 0
rec.next_event_idx = idx + 1
rec.events.append({
"idx": idx,
"type": event_type,
"data": data,
"ts": time.time(),
})
rec.updated_at = time.time()
def _run_chat_task(self, rec: TaskRecord, images: List[Any], videos: List[Any]):
username = rec.username
workspace_id = rec.workspace_id
terminal = None
workspace = None
stop_hint = False
try:
# 为后台线程构造最小请求上下文,填充 session
from server.app import app as flask_app
with flask_app.test_request_context():
try:
for k, v in (rec.session_data or {}).items():
if v is not None:
session[k] = v
if session.get("host_mode"):
session["workspace_id"] = workspace_id
session["host_workspace_id"] = session.get("host_workspace_id") or workspace_id
write_host_workspace_debug(
"tasks.run_chat_task.apply_host_session",
task_id=rec.task_id,
workspace_id=workspace_id,
host_workspace_id=session.get("host_workspace_id"),
)
except Exception:
pass
terminal, workspace = get_user_resources(username, workspace_id=workspace_id)
if not terminal or not workspace:
raise RuntimeError("系统未初始化")
stop_hint = bool(stop_flags.get(rec.task_id, {}).get("stop"))
def _apply_requested_model_mode():
# API 传入的模型/模式配置
if rec.model_key:
try:
terminal.set_model(rec.model_key)
except Exception as exc:
debug_log(f"[Task] 设置模型失败 {rec.model_key}: {exc}")
if rec.run_mode:
try:
terminal.set_run_mode(rec.run_mode)
except Exception as exc:
debug_log(f"[Task] 设置运行模式失败 {rec.run_mode}: {exc}")
elif rec.thinking_mode is not None:
try:
terminal.set_run_mode("thinking" if rec.thinking_mode else "fast")
except Exception as exc:
debug_log(f"[Task] 设置思考模式失败: {exc}")
_apply_requested_model_mode()
if rec.max_iterations:
try:
terminal.max_iterations_override = int(rec.max_iterations)
except Exception:
terminal.max_iterations_override = None
try:
debug_log(
"[Task] effective terminal state "
f"model_key={getattr(terminal, 'model_key', None)!r} "
f"run_mode={getattr(terminal, 'run_mode', None)!r} "
f"thinking_mode={getattr(terminal, 'thinking_mode', None)!r} "
f"deep_mode={getattr(terminal, 'deep_thinking_mode', None)!r}"
)
except Exception:
pass
# 确保会话加载
conversation_id = rec.conversation_id
try:
conversation_id, _ = ensure_conversation_loaded(terminal, conversation_id, workspace=workspace)
rec.conversation_id = conversation_id
except Exception as exc:
raise RuntimeError(f"对话加载失败: {exc}") from exc
# 对话加载会按会话元数据恢复历史模型/模式,这里再覆盖一次用户本次请求参数
_apply_requested_model_mode()
try:
debug_log(
"[Task] post-conversation effective state "
f"model_key={getattr(terminal, 'model_key', None)!r} "
f"run_mode={getattr(terminal, 'run_mode', None)!r} "
f"thinking_mode={getattr(terminal, 'thinking_mode', None)!r} "
f"deep_mode={getattr(terminal, 'deep_thinking_mode', None)!r}"
)
except Exception:
pass
# 仅对“后台通知触发的新任务”补发 user_message 事件到任务事件流。
# 这样前端轮询能即时看到这条 user 消息,而不是刷新后才从历史中看到。
try:
if bool((rec.session_data or {}).get("auto_user_message_event")):
extra_payload = (rec.session_data or {}).get("auto_user_message_payload") or {}
if not isinstance(extra_payload, dict):
extra_payload = {}
payload = {
"message": rec.message,
"conversation_id": rec.conversation_id,
"task_id": rec.task_id,
}
payload.update(extra_payload)
self._append_event(rec, "user_message", payload)
except Exception as exc:
debug_log(f"[Task] 注入 user_message 事件失败: {exc}")
def sender(event_type, data):
if isinstance(data, dict):
data = dict(data)
if event_type == "compression_finished":
migrated_conversation_id = str(data.get("conversation_id") or "").strip()
if migrated_conversation_id:
with self._lock:
rec.conversation_id = migrated_conversation_id
rec.updated_at = time.time()
data.setdefault("task_id", rec.task_id)
if rec.conversation_id:
data.setdefault("conversation_id", rec.conversation_id)
if rec.workspace_id:
data.setdefault("workspace_id", rec.workspace_id)
# 记录事件
self._append_event(rec, event_type, data)
# 在线用户仍然收到实时推送(房间 user_{username}
try:
from server.extensions import socketio
socketio.emit(event_type, data, room=f"user_{username}")
except Exception:
pass
# 轮询模式需要把 context_manager 的回调切到当前任务 sender
# 否则 token_update 等事件只走 websocket前端任务轮询拿不到实时更新。
previous_ctx_callback = None
try:
if terminal and getattr(terminal, "context_manager", None):
previous_ctx_callback = getattr(terminal.context_manager, "_web_terminal_callback", None)
terminal.context_manager.set_web_terminal_callback(sender)
except Exception as exc:
debug_log(f"[Task] 设置上下文回调失败: {exc}")
# 将 task_id 作为 client_sid供 stop_flags 检测
previous_auto_user_event = None
previous_message_source = None
previous_auto_user_payload = None
previous_goal_mode_requested = None
previous_skill_context_messages = None
try:
previous_auto_user_event = getattr(terminal, "_auto_user_message_event", False)
previous_message_source = getattr(terminal, "_current_user_message_source", None)
previous_auto_user_payload = getattr(terminal, "_auto_user_message_payload", None)
previous_goal_mode_requested = getattr(terminal, "_goal_mode_requested", False)
previous_skill_context_messages = getattr(terminal, "_skill_context_messages", None)
setattr(
terminal,
"_auto_user_message_event",
bool((rec.session_data or {}).get("auto_user_message_event")),
)
setattr(
terminal,
"_auto_user_message_payload",
dict((rec.session_data or {}).get("auto_user_message_payload") or {}),
)
setattr(
terminal,
"_current_user_message_source",
str((rec.session_data or {}).get("message_source") or "user"),
)
setattr(
terminal,
"_goal_mode_requested",
bool((rec.session_data or {}).get("goal_mode")),
)
setattr(
terminal,
"_skill_context_messages",
list((rec.session_data or {}).get("skill_context_messages") or []),
)
except Exception:
previous_auto_user_event = None
previous_message_source = None
previous_auto_user_payload = None
previous_goal_mode_requested = None
previous_skill_context_messages = None
try:
run_chat_task_sync(
terminal=terminal,
message=rec.message,
images=images,
sender=sender,
client_sid=rec.task_id,
workspace=workspace,
username=username,
videos=videos,
)
finally:
try:
if previous_auto_user_event is not None:
setattr(terminal, "_auto_user_message_event", previous_auto_user_event)
if previous_auto_user_payload is not None:
setattr(terminal, "_auto_user_message_payload", previous_auto_user_payload)
if previous_message_source is not None:
setattr(terminal, "_current_user_message_source", previous_message_source)
if previous_goal_mode_requested is not None:
setattr(terminal, "_goal_mode_requested", previous_goal_mode_requested)
if previous_skill_context_messages is not None:
setattr(terminal, "_skill_context_messages", previous_skill_context_messages)
else:
setattr(terminal, "_skill_context_messages", [])
if terminal and getattr(terminal, "context_manager", None):
terminal.context_manager.set_web_terminal_callback(previous_ctx_callback)
except Exception as exc:
debug_log(f"[Task] 恢复上下文回调失败: {exc}")
# 结束状态
canceled_flag = rec.stop_requested or stop_hint or bool(stop_flags.get(rec.task_id, {}).get("stop"))
if canceled_flag:
# 用户取消时,根据是否还有后台任务决定状态:
# - 有后台任务:保持 cancel_requested等待用户第二下清理
# - 无后台任务:直接 stopped
# 注意:如果 cancel_task 第二下已经先把 rec.status 设为 stopped则保持 stopped。
bg_state = self._has_running_background(rec, terminal)
has_bg = bg_state["has_running_sub_agents"] or bg_state["has_running_background_commands"]
with self._lock:
if rec.status == "stopped":
new_status = "stopped"
else:
new_status = "cancel_requested" if has_bg else "stopped"
rec.status = new_status
rec.updated_at = time.time()
debug_log(
f"[TaskRun] 任务线程结束: task_id={rec.task_id}, canceled_flag={canceled_flag}, "
f"new_status={new_status}, bg_state={bg_state}"
)
# 统一发送 task_stopped携带后台任务状态
try:
from server.extensions import socketio
stopped_payload = {
'message': '任务已停止',
'reason': 'user_requested',
'task_id': rec.task_id,
'conversation_id': rec.conversation_id,
'has_running_sub_agents': bg_state["has_running_sub_agents"],
'has_running_background_commands': bg_state["has_running_background_commands"],
}
socketio.emit('task_stopped', stopped_payload, room=f"user_{rec.username}")
# 同时写入轮询事件队列,确保 websocket 丢失时前端仍能收到
self._append_event(rec, "task_stopped", stopped_payload)
debug_log(
f"[TaskRun] 已发送 task_stopped: task_id={rec.task_id}, "
f"has_bg={has_bg}, room=user_{rec.username}"
)
except Exception as exc:
debug_log(f"[TaskRun] 发送 task_stopped 失败: {exc}")
# 持久化:将最后一条用户消息的 work_timer 标记为完成,避免刷新后仍显示工作中
try:
if terminal and getattr(terminal, "context_manager", None) and rec.conversation_id:
cm = getattr(terminal.context_manager, "conversation_manager", None)
if cm:
cm.mark_latest_user_work_completed(rec.conversation_id)
debug_log(f"[TaskRun] 已持久化 work_timer 完成: task_id={rec.task_id}, conversation_id={rec.conversation_id}")
except Exception as exc:
debug_log(f"[TaskRun] 持久化 work_timer 完成失败: {exc}")
else:
with self._lock:
rec.status = "succeeded"
rec.updated_at = time.time()
# 正常结束时同样持久化 work_timer保证刷新后状态一致
try:
if terminal and getattr(terminal, "context_manager", None) and rec.conversation_id:
cm = getattr(terminal.context_manager, "conversation_manager", None)
if cm:
cm.mark_latest_user_work_completed(rec.conversation_id)
debug_log(f"[TaskRun] 正常结束已持久化 work_timer 完成: task_id={rec.task_id}, conversation_id={rec.conversation_id}")
except Exception as exc:
debug_log(f"[TaskRun] 正常结束持久化 work_timer 完成失败: {exc}")
except Exception as exc:
debug_log(f"[Task] 后台任务失败: {exc}")
self._append_event(rec, "error", {"message": str(exc)})
with self._lock:
rec.status = "failed"
rec.error = str(exc)
rec.updated_at = time.time()
finally:
# 清理 stop_flags
stop_flags.pop(rec.task_id, None)
# 清理一次性配置
if terminal and hasattr(terminal, "max_iterations_override"):
try:
delattr(terminal, "max_iterations_override")
except Exception:
terminal.max_iterations_override = None
def start_task_cleanup_scheduler():
"""启动任务清理定时器"""
def cleanup_loop():
while True:
try:
from server.tasks import task_manager
count = task_manager.cleanup_old_tasks(3600)
if count > 0:
debug_log(f"[Task] 清理了 {count} 个旧任务")
except Exception as e:
debug_log(f"[Task] 清理任务失败: {e}")
time.sleep(600) # 每 10 分钟
thread = threading.Thread(target=cleanup_loop, daemon=True, name="TaskCleanup")
thread.start()
debug_log("[Task] 任务清理定时器已启动")