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- 新增 platform_scheduled_tasks, platform_task_logs, platform_script_vars, platform_secrets 数据库表 - 实现 ScriptSDK 提供 AI/通知/DB/HTTP/变量存储/参数获取等功能 - 实现安全的脚本执行器，支持沙箱环境和禁止危险操作 - 实现 APScheduler 调度服务，支持简单时间点和 CRON 表达式 - 新增定时任务 API 路由，包含 CRUD、执行、日志、密钥管理 - 新增定时任务前端页面，支持脚本编辑、测试运行、日志查看
309 lines
11 KiB
Python
309 lines
11 KiB
Python
"""定时任务调度服务"""
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import json
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import httpx
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import asyncio
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from datetime import datetime
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from typing import Optional
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from apscheduler.schedulers.asyncio import AsyncIOScheduler
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from apscheduler.triggers.cron import CronTrigger
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from sqlalchemy.orm import Session
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from ..database import SessionLocal
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from ..models.scheduled_task import ScheduledTask, TaskLog
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from .script_executor import ScriptExecutor
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class SchedulerService:
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"""调度服务 - 管理定时任务的调度和执行"""
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_instance: Optional['SchedulerService'] = None
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_scheduler: Optional[AsyncIOScheduler] = None
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def __new__(cls):
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if cls._instance is None:
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cls._instance = super().__new__(cls)
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return cls._instance
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def __init__(self):
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if self._scheduler is None:
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self._scheduler = AsyncIOScheduler(timezone='Asia/Shanghai')
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@property
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def scheduler(self) -> AsyncIOScheduler:
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return self._scheduler
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def start(self):
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"""启动调度器并加载所有任务"""
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if not self._scheduler.running:
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self._scheduler.start()
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self._load_all_tasks()
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print("调度器已启动")
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def shutdown(self):
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"""关闭调度器"""
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if self._scheduler.running:
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self._scheduler.shutdown()
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print("调度器已关闭")
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def _load_all_tasks(self):
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"""从数据库加载所有启用的任务"""
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db = SessionLocal()
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try:
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tasks = db.query(ScheduledTask).filter(ScheduledTask.status == 1).all()
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for task in tasks:
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self._add_task_to_scheduler(task)
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print(f"已加载 {len(tasks)} 个定时任务")
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finally:
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db.close()
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def _add_task_to_scheduler(self, task: ScheduledTask):
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"""将任务添加到调度器"""
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job_id = f"task_{task.id}"
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# 移除已存在的任务
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if self._scheduler.get_job(job_id):
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self._scheduler.remove_job(job_id)
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if task.schedule_type == 'cron' and task.cron_expression:
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# CRON模式
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try:
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trigger = CronTrigger.from_crontab(task.cron_expression, timezone='Asia/Shanghai')
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self._scheduler.add_job(
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self._execute_task,
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trigger,
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id=job_id,
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args=[task.id],
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replace_existing=True
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)
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except Exception as e:
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print(f"任务 {task.id} CRON表达式解析失败: {e}")
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elif task.schedule_type == 'simple' and task.time_points:
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# 简单模式 - 多个时间点
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try:
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time_points = json.loads(task.time_points)
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for i, time_point in enumerate(time_points):
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hour, minute = map(int, time_point.split(':'))
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sub_job_id = f"{job_id}_{i}"
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self._scheduler.add_job(
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self._execute_task,
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CronTrigger(hour=hour, minute=minute, timezone='Asia/Shanghai'),
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id=sub_job_id,
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args=[task.id],
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replace_existing=True
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)
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except Exception as e:
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print(f"任务 {task.id} 时间点解析失败: {e}")
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def add_task(self, task_id: int):
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"""添加或更新任务调度"""
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db = SessionLocal()
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try:
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task = db.query(ScheduledTask).filter(ScheduledTask.id == task_id).first()
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if task and task.status == 1:
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self._add_task_to_scheduler(task)
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finally:
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db.close()
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def remove_task(self, task_id: int):
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"""移除任务调度"""
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job_id = f"task_{task_id}"
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# 移除主任务
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if self._scheduler.get_job(job_id):
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self._scheduler.remove_job(job_id)
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# 移除简单模式的子任务
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for i in range(24): # 最多24个时间点
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sub_job_id = f"{job_id}_{i}"
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if self._scheduler.get_job(sub_job_id):
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self._scheduler.remove_job(sub_job_id)
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async def _execute_task(self, task_id: int):
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"""执行任务（带重试）"""
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db = SessionLocal()
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try:
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task = db.query(ScheduledTask).filter(ScheduledTask.id == task_id).first()
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if not task:
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return
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max_retries = task.retry_count or 0
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retry_interval = task.retry_interval or 60
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for attempt in range(max_retries + 1):
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success, output, error = await self._execute_task_once(db, task)
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if success:
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return
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# 如果还有重试机会
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if attempt < max_retries:
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print(f"任务 {task_id} 执行失败，{retry_interval}秒后重试 ({attempt + 1}/{max_retries})")
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await asyncio.sleep(retry_interval)
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else:
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# 最后一次失败，发送告警
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if task.alert_on_failure and task.alert_webhook:
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await self._send_alert(task, error)
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finally:
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db.close()
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async def _execute_task_once(self, db: Session, task: ScheduledTask):
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"""执行一次任务"""
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trace_id = f"{int(datetime.now().timestamp())}-{task.id}"
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started_at = datetime.now()
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# 创建日志记录
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log = TaskLog(
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task_id=task.id,
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tenant_id=task.tenant_id,
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trace_id=trace_id,
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status='running',
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started_at=started_at
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)
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db.add(log)
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db.commit()
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db.refresh(log)
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success = False
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output = ''
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error = ''
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try:
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# 解析输入参数
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params = {}
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if task.input_params:
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try:
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params = json.loads(task.input_params)
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except:
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pass
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if task.task_type == 'webhook':
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success, output, error = await self._execute_webhook(task)
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else:
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success, output, error = await self._execute_script(db, task, trace_id, params)
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except Exception as e:
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error = str(e)
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# 更新日志
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finished_at = datetime.now()
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duration_ms = int((finished_at - started_at).total_seconds() * 1000)
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log.status = 'success' if success else 'failed'
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log.finished_at = finished_at
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log.duration_ms = duration_ms
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log.output = output[:10000] if output else None # 限制长度
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log.error = error[:5000] if error else None
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# 更新任务状态
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task.last_run_at = finished_at
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task.last_run_status = 'success' if success else 'failed'
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db.commit()
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return success, output, error
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async def _execute_webhook(self, task: ScheduledTask):
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"""执行Webhook任务"""
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try:
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headers = {}
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if task.webhook_headers:
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headers = json.loads(task.webhook_headers)
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body = {}
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if task.input_params:
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body = json.loads(task.input_params)
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async with httpx.AsyncClient(timeout=30) as client:
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if task.webhook_method.upper() == 'GET':
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response = await client.get(task.webhook_url, headers=headers, params=body)
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else:
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response = await client.post(task.webhook_url, headers=headers, json=body)
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response.raise_for_status()
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return True, response.text[:5000], ''
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except Exception as e:
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return False, '', str(e)
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async def _execute_script(self, db: Session, task: ScheduledTask, trace_id: str, params: dict):
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"""执行脚本任务"""
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if not task.script_content:
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return False, '', '脚本内容为空'
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executor = ScriptExecutor(db)
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success, output, error = executor.execute(
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script_content=task.script_content,
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task_id=task.id,
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tenant_id=task.tenant_id,
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trace_id=trace_id,
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params=params,
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timeout=task.script_timeout or 300
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)
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return success, output, error
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async def _send_alert(self, task: ScheduledTask, error: str):
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"""发送失败告警"""
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if not task.alert_webhook:
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return
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content = f"""### 定时任务执行失败告警
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**任务名称**: {task.task_name}
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**任务ID**: {task.id}
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**租户**: {task.tenant_id or '全局'}
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**失败时间**: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}
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**错误信息**:
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```
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{error[:500] if error else '未知错误'}
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```"""
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try:
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# 判断是钉钉还是企微
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if 'dingtalk' in task.alert_webhook or 'oapi.dingtalk.com' in task.alert_webhook:
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payload = {
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"msgtype": "markdown",
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"markdown": {"title": "任务失败告警", "text": content}
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}
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else:
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payload = {
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"msgtype": "markdown",
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"markdown": {"content": content}
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}
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async with httpx.AsyncClient(timeout=10) as client:
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await client.post(task.alert_webhook, json=payload)
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except Exception as e:
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print(f"发送告警失败: {e}")
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async def run_task_now(self, task_id: int) -> dict:
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"""立即执行任务（手动触发）"""
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db = SessionLocal()
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try:
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task = db.query(ScheduledTask).filter(ScheduledTask.id == task_id).first()
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if not task:
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return {"success": False, "error": "任务不存在"}
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# 解析参数
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params = {}
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if task.input_params:
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try:
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params = json.loads(task.input_params)
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except:
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pass
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success, output, error = await self._execute_task_once(db, task)
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return {
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"success": success,
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"output": output,
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"error": error
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}
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finally:
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db.close()
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# 全局调度器实例
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scheduler_service = SchedulerService()
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