510 lines
18 KiB
Python
510 lines
18 KiB
Python
from sanic import Sanic, json
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from sanic.response import json as json_response
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from sanic.exceptions import Unauthorized, NotFound, SanicException
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from dataclasses import dataclass
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from typing import List, Dict, Any, Optional
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import uuid
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import logging
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import asyncio
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import traceback
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from datetime import datetime
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from cv_video import startAIVideo,stopAIVideo,getIfAI
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from sanic_cors import CORS
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
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)
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logger = logging.getLogger(__name__)
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# 服务状态标志
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service_status = {"is_healthy": True, "last_error": None, "error_time": None}
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# 配置类
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class Config:
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VALID_TOKEN = "5e8899fe-dc74-4280-8169-2f4d185f3afa"
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MAX_ACTIVE_TASKS = 10
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DEFAULT_CONFIDENCE = 0.5
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RESTART_DELAY = 2 # 服务尝试自动恢复前的延迟(秒)
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@dataclass
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class StreamRequest:
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source_url: str
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push_url: str
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model_path: str
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detect_classes: List[str]
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confidence: float = Config.DEFAULT_CONFIDENCE
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def validate(self) -> None:
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"""验证请求参数"""
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if not self.source_url or not self.push_url:
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raise ValueError("Source URL and Push URL are required")
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if not self.detect_classes:
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raise ValueError("At least one detection class must be specified")
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if not 0 < self.confidence < 1:
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raise ValueError("Confidence must be between 0 and 1")
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@classmethod
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def from_dict(cls, data: Dict[str, Any]) -> 'StreamRequest':
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try:
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instance = cls(
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source_url=data['source_url'],
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push_url=data['push_url'],
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model_path=data['model_path'],
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detect_classes=data['detect_classes'],
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confidence=data.get('confidence', Config.DEFAULT_CONFIDENCE)
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)
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instance.validate()
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return instance
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except KeyError as e:
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raise ValueError(f"Missing required field: {str(e)}")
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class TaskManager:
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def __init__(self):
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self.active_tasks: Dict[str, Dict[str, Any]] = {}
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self.task_status: Dict[str, str] = {}
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self.task_timestamps: Dict[str, datetime] = {}
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def add_task(self, task_id: str, task_info: Dict[str, Any]) -> None:
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"""添加新任务"""
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if len(self.active_tasks) >= Config.MAX_ACTIVE_TASKS:
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raise ValueError("Maximum number of active tasks reached")
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self.active_tasks[task_id] = task_info
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self.task_status[task_id] = "running"
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self.task_timestamps[task_id] = datetime.now()
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logger.info(f"Task {task_id} started")
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def remove_task(self, task_id: str) -> None:
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"""移除任务"""
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if task_id in self.active_tasks:
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del self.active_tasks[task_id]
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del self.task_status[task_id]
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del self.task_timestamps[task_id]
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logger.info(f"Task {task_id} removed")
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def get_task_info(self, task_id: str) -> Dict[str, Any]:
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"""获取任务信息"""
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if task_id not in self.active_tasks:
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raise NotFound("Task not found")
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return {
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"task_info": self.active_tasks[task_id],
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"status": self.task_status[task_id],
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"start_time": self.task_timestamps[task_id].isoformat()
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}
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def check_tasks_health(self) -> Dict[str, str]:
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"""检查任务健康状态"""
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unhealthy_tasks = {}
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for task_id in list(self.active_tasks.keys()):
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# 检查任务是否还在运行（通过getIfAI()函数）
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if not getIfAI():
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unhealthy_tasks[task_id] = "stopped"
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logger.warning(f"Task {task_id} appears to be stopped unexpectedly")
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return unhealthy_tasks
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def mark_all_tasks_as_stopped(self):
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"""标记所有任务为已停止状态"""
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for task_id in list(self.active_tasks.keys()):
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self.task_status[task_id] = "stopped"
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logger.warning("已将所有任务标记为停止状态")
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app = Sanic("YoloStreamService")
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CORS(app)
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task_manager = TaskManager()
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async def safe_stop_ai_video():
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"""安全地停止AI视频处理，带有错误处理和恢复机制"""
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try:
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await asyncio.to_thread(stopAIVideo)
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return True
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except Exception as e:
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error_msg = f"停止AI视频处理出错: {str(e)}\n{traceback.format_exc()}"
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logger.error(error_msg)
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# 标记服务状态为不健康
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service_status["is_healthy"] = False
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service_status["last_error"] = str(e)
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service_status["error_time"] = datetime.now().isoformat()
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# 强制结束所有任务
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task_manager.mark_all_tasks_as_stopped()
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# 尝试通过其他方式杀死可能存在的进程
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try:
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import os
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import signal
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import psutil
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current_process = psutil.Process(os.getpid())
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# 查找并终止ffmpeg子进程
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for child in current_process.children(recursive=True):
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try:
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child_name = child.name().lower()
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if 'ffmpeg' in child_name:
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logger.info(f"强制终止子进程: {child.pid} ({child_name})")
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child.send_signal(signal.SIGTERM)
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except Exception as child_e:
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logger.error(f"终止子进程出错: {str(child_e)}")
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except Exception as kill_e:
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logger.error(f"尝试清理进程时出错: {str(kill_e)}")
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# 等待一段时间让系统恢复
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await asyncio.sleep(Config.RESTART_DELAY)
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# 重置服务状态
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service_status["is_healthy"] = True
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return False
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def verify_token(request) -> None:
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"""验证请求token"""
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token = request.headers.get('X-API-Token')
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if not token or token != Config.VALID_TOKEN:
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logger.warning("Invalid token attempt")
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raise Unauthorized("Invalid token")
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@app.post("/ai/stream/detect")
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async def start_detection(request):
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try:
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verify_token(request)
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# 检查服务健康状态
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if not service_status["is_healthy"]:
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logger.warning(f"服务处于不健康状态，上次错误: {service_status['last_error']} 于 {service_status['error_time']}")
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# 尝试恢复服务
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service_status["is_healthy"] = True
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# 先停止所有现有任务
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for task_id in list(task_manager.active_tasks.keys()):
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logger.info(f"停止现有任务 {task_id} 以启动新任务")
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try:
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success = await safe_stop_ai_video()
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if success:
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task_manager.remove_task(task_id)
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else:
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logger.warning(f"无法正常停止任务 {task_id}，但仍将继续")
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task_manager.mark_all_tasks_as_stopped()
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except Exception as e:
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logger.error(f"停止任务时出错: {e}")
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# 继续执行，尝试启动新任务
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# 解析并验证请求数据
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stream_request = StreamRequest.from_dict(request.json)
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task_id = str(uuid.uuid4())
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# 修正视频源地址
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new_source_url = stream_request.source_url.replace("222.212.85.86", "192.168.10.5")
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new_push_url = stream_request.push_url.replace("222.212.85.86", "192.168.10.5")
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# 启动YOLO检测
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try:
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await asyncio.to_thread(
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startAIVideo,
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new_source_url,
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new_push_url,
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stream_request.model_path,
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stream_request.detect_classes,
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stream_request.confidence
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)
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except Exception as e:
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logger.error(f"启动AI视频处理失败: {e}")
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return json_response({
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"status": "error",
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"message": f"Failed to start AI video processing: {str(e)}"
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}, status=500)
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# 记录任务信息
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task_manager.add_task(task_id, {
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"source_url": stream_request.source_url,
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"push_url": stream_request.push_url,
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"model_path": stream_request.model_path,
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"detect_classes": stream_request.detect_classes,
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"confidence": stream_request.confidence
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})
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return json_response({
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"status": "success",
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"task_id": task_id,
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"message": "Detection started successfully"
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})
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except ValueError as e:
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logger.error(f"Validation error: {str(e)}")
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return json_response({"status": "error", "message": str(e)}, status=400)
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except Exception as e:
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logger.error(f"Unexpected error: {str(e)}", exc_info=True)
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return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
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@app.post("/ai/stream/<task_id>")
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async def stop_detection(request, task_id: str):
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try:
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verify_token(request)
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# 检查任务是否存在
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try:
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task_info = task_manager.get_task_info(task_id)
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except NotFound:
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return json_response({"status": "error", "message": "Task not found"}, status=404)
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# 停止AI视频处理，使用安全的停止方法
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success = await safe_stop_ai_video()
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# 即使停止失败，也要移除任务
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task_manager.remove_task(task_id)
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if not success:
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logger.warning("虽然停止过程出现错误，但任务已被标记为结束")
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return json_response({
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"status": "warning",
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"message": "Task removal completed with warnings"
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})
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return json_response({
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"status": "success",
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"message": "Detection stopped successfully"
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})
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except NotFound as e:
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return json_response({"status": "error", "message": str(e)}, status=404)
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except Exception as e:
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logger.error(f"Error stopping task {task_id}: {str(e)}", exc_info=True)
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# 尝试标记任务为停止状态
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try:
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if task_id in task_manager.task_status:
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task_manager.task_status[task_id] = "error_during_stop"
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except:
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pass
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return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
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@app.get("/ai/stream/<task_id>")
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async def get_task_status(request, task_id: str):
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try:
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verify_token(request)
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task_info = task_manager.get_task_info(task_id)
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# 检查任务是否真的在运行
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if not getIfAI() and task_info["status"] == "running":
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task_info["status"] = "stopped_unexpectedly"
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logger.warning(f"Task {task_id} 显示为运行状态，但实际已停止")
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return json_response({
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"status": "success",
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"task_id": task_id,
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**task_info
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})
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except NotFound as e:
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return json_response({"status": "error", "message": str(e)}, status=404)
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except Exception as e:
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logger.error(f"Error getting task status {task_id}: {str(e)}", exc_info=True)
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return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
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@app.get("/ai/stream/tasks")
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async def list_tasks(request):
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"""获取所有活动任务列表"""
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try:
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verify_token(request)
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# 检查所有任务的健康状态
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unhealthy_tasks = task_manager.check_tasks_health()
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for task_id, status in unhealthy_tasks.items():
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if task_id in task_manager.task_status:
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task_manager.task_status[task_id] = status
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tasks = {
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task_id: task_manager.get_task_info(task_id)
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for task_id in task_manager.active_tasks.keys()
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}
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return json_response({
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"status": "success",
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"tasks": tasks
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})
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except Exception as e:
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logger.error(f"Error listing tasks: {str(e)}", exc_info=True)
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return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
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@app.post("/ai/stream/stopTasks")
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async def stop_all_detections(request):
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"""停止所有活动任务"""
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try:
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verify_token(request)
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if not task_manager.active_tasks:
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return json_response({
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"status": "success",
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"message": "No active tasks to stop"
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})
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# 停止所有任务
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success = await safe_stop_ai_video()
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# 无论成功与否，都移除所有任务
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for task_id in list(task_manager.active_tasks.keys()):
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task_manager.remove_task(task_id)
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if not success:
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return json_response({
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"status": "warning",
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"message": "Tasks stopped with warnings"
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})
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return json_response({
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"status": "success",
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"message": "All detections stopped successfully"
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})
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except Exception as e:
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logger.error(f"Error stopping all tasks: {str(e)}", exc_info=True)
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# 尝试标记所有任务为停止状态
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task_manager.mark_all_tasks_as_stopped()
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return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
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@app.get("/ai/health")
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async def health_check(request):
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"""服务健康检查端点"""
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try:
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# 不需要验证token，这个接口可以用于监控系统检查服务状态
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unhealthy_tasks = task_manager.check_tasks_health()
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return json_response({
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"status": "success",
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"service": "running" if service_status["is_healthy"] else "degraded",
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"active_tasks": len(task_manager.active_tasks),
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"unhealthy_tasks": unhealthy_tasks,
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"last_error": service_status["last_error"],
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"error_time": service_status["error_time"],
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"timestamp": datetime.now().isoformat()
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})
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except Exception as e:
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logger.error(f"健康检查失败: {str(e)}", exc_info=True)
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return json_response({
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"status": "error",
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"service": "degraded",
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"error": str(e),
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"timestamp": datetime.now().isoformat()
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}, status=500)
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@app.route("/ai/reset", methods=["POST"])
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async def reset_service(request):
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"""重置服务状态，清理所有任务和进程"""
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try:
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verify_token(request)
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# 尝试停止AI视频处理
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await safe_stop_ai_video()
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# 清理所有任务
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for task_id in list(task_manager.active_tasks.keys()):
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task_manager.remove_task(task_id)
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# 重置服务状态
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service_status["is_healthy"] = True
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service_status["last_error"] = None
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service_status["error_time"] = None
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# 尝试清理可能存在的僵尸进程
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try:
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import os
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import signal
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import psutil
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current_process = psutil.Process(os.getpid())
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zombie_count = 0
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for child in current_process.children(recursive=True):
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try:
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if child.status() == psutil.STATUS_ZOMBIE:
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zombie_count += 1
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child.send_signal(signal.SIGKILL)
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except:
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pass
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return json_response({
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"status": "success",
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"message": f"Service reset successful. Cleaned {zombie_count} zombie processes."
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})
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except Exception as e:
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logger.error(f"清理僵尸进程时出错: {e}")
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return json_response({
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"status": "warning",
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"message": "Service reset with warnings"
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})
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except Exception as e:
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logger.error(f"重置服务时出错: {str(e)}", exc_info=True)
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return json_response({
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"status": "error",
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"message": f"Failed to reset service: {str(e)}"
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}, status=500)
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@app.route("/ai/stream/restart/<task_id>", methods=["POST"])
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async def restart_task(request, task_id: str):
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"""重启指定任务"""
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try:
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verify_token(request)
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# 获取任务信息
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try:
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task_info = task_manager.get_task_info(task_id)["task_info"]
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except NotFound:
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return json_response({"status": "error", "message": "Task not found"}, status=404)
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# 先停止任务
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success = await safe_stop_ai_video()
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task_manager.remove_task(task_id)
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if not success:
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logger.warning("停止任务出现问题，尝试继续重启")
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# 重新启动任务
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new_task_id = str(uuid.uuid4())
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try:
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await asyncio.to_thread(
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startAIVideo,
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task_info["source_url"],
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task_info["push_url"],
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task_info["model_path"],
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task_info["detect_classes"],
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task_info["confidence"]
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)
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# 记录新任务信息
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task_manager.add_task(new_task_id, task_info)
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return json_response({
|
||
"status": "success",
|
||
"old_task_id": task_id,
|
||
"new_task_id": new_task_id,
|
||
"message": "Task restarted successfully"
|
||
})
|
||
except Exception as e:
|
||
logger.error(f"重启任务失败: {e}")
|
||
return json_response({
|
||
"status": "error",
|
||
"message": f"Failed to restart task: {str(e)}"
|
||
}, status=500)
|
||
|
||
except Exception as e:
|
||
logger.error(f"重启任务时出错: {str(e)}", exc_info=True)
|
||
return json_response({"status": "error", "message": f"Internal server error: {str(e)}"}, status=500)
|
||
|
||
if __name__ == "__main__":
|
||
# 保证服务启动前没有残留任务
|
||
try:
|
||
stopAIVideo()
|
||
print("服务启动前清理完成")
|
||
except:
|
||
print("服务启动前清理失败，但仍将继续")
|
||
|
||
# 安装psutil库，用于进程管理
|
||
try:
|
||
import psutil
|
||
except ImportError:
|
||
import subprocess
|
||
import sys
|
||
print("正在安装psutil库...")
|
||
subprocess.check_call([sys.executable, "-m", "pip", "install", "psutil"])
|
||
|
||
app.run(host="0.0.0.0", port=12315, debug=False, access_log=True)
|