742 lines
21 KiB
Python
742 lines
21 KiB
Python
"""
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Web Backend - FastAPI 应用
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提供 API 和 SSE 事件推送
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"""
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import asyncio
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import json
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import os
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import subprocess
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from datetime import datetime
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from typing import Dict, List, Optional
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from fastapi import FastAPI, HTTPException, BackgroundTasks
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from fastapi.responses import HTMLResponse, JSONResponse, StreamingResponse
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from fastapi.staticfiles import StaticFiles
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from fastapi.templating import Jinja2Templates
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from fastapi.requests import Request
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from pydantic import BaseModel
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from typing import List as ListType
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from app import config
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from app.log_manager import get_log_manager
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from app.scraper import XiaoHongShuScraper
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# ========== Pydantic 模型 ==========
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class StartRequest(BaseModel):
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mode: str = "single" # single / multi
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max_threads: int = 3
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class StatusResponse(BaseModel):
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is_running: bool
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mode: str
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max_threads: int
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total_users: int
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completed_users: int
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failed_users: int
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active_threads: int
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users_status: Dict[str, Dict]
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# ========== 全局状态 ==========
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class AppState:
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def __init__(self):
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self.is_running = False
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self.mode = "single"
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self.max_threads = 1
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self.total_users = 0
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self.completed_users = 0
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self.failed_users = 0
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self.active_threads = 0
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self.users_status: Dict[str, Dict] = {}
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self.thread_status: Dict[str, Dict] = {}
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self.event_queue: asyncio.Queue = None
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self.scraper: Optional[XiaoHongShuScraper] = None
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self.scraper_task: Optional[asyncio.Task] = None
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app_state = AppState()
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log_manager = get_log_manager()
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# ========== FastAPI 应用 ==========
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app = FastAPI(title="小红书数据采集器", version="1.0.0")
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# 挂载静态文件和模板
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app.mount("/static", StaticFiles(directory="static"), name="static")
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templates = Jinja2Templates(directory="templates")
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# ========== 路由 ==========
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@app.get("/", response_class=HTMLResponse)
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async def index(request: Request):
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"""首页"""
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return templates.TemplateResponse("index.html", {"request": request})
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@app.get("/api/status", response_model=StatusResponse)
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async def get_status():
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"""获取当前状态"""
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return StatusResponse(
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is_running=app_state.is_running,
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mode=app_state.mode,
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max_threads=app_state.max_threads,
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total_users=app_state.total_users,
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completed_users=app_state.completed_users,
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failed_users=app_state.failed_users,
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active_threads=app_state.active_threads,
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users_status=app_state.users_status
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)
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@app.post("/api/start")
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async def start_scraping(request: StartRequest):
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"""启动采集"""
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if app_state.is_running:
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raise HTTPException(status_code=400, detail="采集任务正在运行中")
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# 读取用户 ID 列表
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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raise HTTPException(status_code=400, detail="用户文件不存在，请先创建 data/users.txt")
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with open(users_file, 'r', encoding='utf-8') as f:
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user_ids = [line.strip() for line in f if line.strip()]
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if not user_ids:
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raise HTTPException(status_code=400, detail="用户 ID 列表为空")
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# 验证模式
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if request.mode not in ["single", "multi"]:
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raise HTTPException(status_code=400, detail="无效的模式，必须是 single 或 multi")
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# 验证线程数
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if request.mode == "multi":
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if request.max_threads < 1 or request.max_threads > config.MAX_CONCURRENT_THREADS:
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raise HTTPException(status_code=400, detail=f"线程数必须在 1-{config.MAX_CONCURRENT_THREADS} 之间")
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# 重置状态
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app_state.is_running = True
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app_state.mode = request.mode
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app_state.max_threads = request.max_threads if request.mode == "multi" else 1
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app_state.total_users = len(user_ids)
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app_state.completed_users = 0
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app_state.failed_users = 0
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app_state.active_threads = 0
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app_state.users_status = {}
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app_state.thread_status = {}
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# 初始化用户状态
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for user_id in user_ids:
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app_state.users_status[user_id] = {
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"status": "pending",
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"note_count": 0,
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"thread_id": None
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}
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# 创建事件队列
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app_state.event_queue = asyncio.Queue()
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# 创建采集器
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app_state.scraper = XiaoHongShuScraper(app_state.event_queue, log_manager)
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# 启动采集任务
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async def run_scraper():
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try:
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await app_state.scraper.run(
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user_ids=user_ids,
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mode=request.mode,
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max_threads=request.max_threads
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)
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finally:
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app_state.is_running = False
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await app_state.event_queue.put({
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"type": "finished"
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})
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app_state.scraper_task = asyncio.create_task(run_scraper())
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return {
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"success": True,
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"message": f"采集任务已启动，模式: {request.mode}, 用户数: {len(user_ids)}",
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"total_users": len(user_ids),
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"mode": request.mode,
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"max_threads": app_state.max_threads
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}
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@app.post("/api/stop")
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async def stop_scraping():
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"""停止采集"""
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if not app_state.is_running:
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raise HTTPException(status_code=400, detail="没有正在运行的采集任务")
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if app_state.scraper:
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app_state.scraper.stop()
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# 取消任务
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if app_state.scraper_task:
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app_state.scraper_task.cancel()
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try:
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await app_state.scraper_task
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except asyncio.CancelledError:
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pass
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app_state.is_running = False
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return {
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"success": True,
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"message": "采集任务已停止"
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}
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@app.post("/api/logs/clear")
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async def clear_logs():
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"""清空日志"""
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log_manager.clear()
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return {
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"success": True,
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"message": "日志已清空"
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}
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@app.get("/api/logs")
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async def get_logs(level: Optional[str] = None, limit: Optional[int] = None):
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"""获取日志"""
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logs = log_manager.get_logs(level=level, limit=limit)
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return {
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"logs": logs,
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"stats": log_manager.get_stats()
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}
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@app.get("/api/logs/search")
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async def search_logs(keyword: str, limit: Optional[int] = None):
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"""搜索日志"""
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logs = log_manager.search_logs(keyword, limit)
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return {
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"logs": logs,
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"count": len(logs)
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}
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@app.get("/api/logs/download")
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async def download_logs():
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"""下载日志文件"""
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text = log_manager.export_to_text()
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return StreamingResponse(
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iter([text]),
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media_type="text/plain",
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headers={
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"Content-Disposition": f"attachment; filename=xiaohongshu_logs_{datetime.now().strftime('%Y%m%d_%H%M%S')}.txt"
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}
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)
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@app.get("/api/users")
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async def get_users():
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"""获取用户列表"""
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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return {"users": []}
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with open(users_file, 'r', encoding='utf-8') as f:
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users = [{"id": line.strip()} for line in f if line.strip()]
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# 添加采集状态
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for user in users:
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user_id = user["id"]
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if user_id in app_state.users_status:
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user.update(app_state.users_status[user_id])
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else:
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user["status"] = "pending"
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user["note_count"] = 0
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return {"users": users}
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@app.post("/api/users")
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async def add_user(request: dict):
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"""添加用户"""
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user_id = request.get("user_id", "").strip()
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if not user_id:
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raise HTTPException(status_code=400, detail="用户ID不能为空")
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# 验证用户ID格式
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if not user_id or len(user_id) < 10:
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raise HTTPException(status_code=400, detail="用户ID格式不正确")
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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# 检查是否已存在
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if os.path.exists(users_file):
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with open(users_file, 'r', encoding='utf-8') as f:
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existing_users = [line.strip() for line in f if line.strip()]
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if user_id in existing_users:
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raise HTTPException(status_code=400, detail="用户ID已存在")
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# 添加到文件
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with open(users_file, 'a', encoding='utf-8') as f:
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f.write(f"{user_id}\n")
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return {
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"success": True,
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"message": f"用户 {user_id} 已添加",
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"user_id": user_id
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}
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@app.delete("/api/users/{user_id}")
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async def remove_user(user_id: str):
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"""删除用户"""
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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raise HTTPException(status_code=404, detail="用户文件不存在")
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# 读取所有用户
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with open(users_file, 'r', encoding='utf-8') as f:
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users = [line.strip() for line in f if line.strip()]
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# 检查用户是否存在
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if user_id not in users:
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raise HTTPException(status_code=404, detail="用户不存在")
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# 删除用户
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users.remove(user_id)
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# 写回文件
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with open(users_file, 'w', encoding='utf-8') as f:
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for user in users:
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f.write(f"{user}\n")
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# 删除采集数据文件
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data_file = os.path.join(config.DATA_DIR, f"{user_id}.json")
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if os.path.exists(data_file):
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os.remove(data_file)
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return {
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"success": True,
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"message": f"用户 {user_id} 已删除"
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}
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@app.delete("/api/users")
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async def clear_all_users():
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"""清空所有用户"""
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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raise HTTPException(status_code=404, detail="用户文件不存在")
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# 清空文件
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with open(users_file, 'w', encoding='utf-8') as f:
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f.write("")
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# 删除所有采集数据
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data_dir = config.DATA_DIR
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for filename in os.listdir(data_dir):
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if filename.endswith('.json') and filename != 'auth_state.json':
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file_path = os.path.join(data_dir, filename)
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os.remove(file_path)
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# 重置状态
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app_state.users_status = {}
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return {
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"success": True,
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"message": "所有用户已清空"
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}
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@app.post("/api/users/import/txt")
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async def import_users_from_txt():
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"""从users.txt导入用户（模拟）"""
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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raise HTTPException(status_code=404, detail="users.txt文件不存在")
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with open(users_file, 'r', encoding='utf-8') as f:
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user_ids = [line.strip() for line in f if line.strip()]
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return {
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"success": True,
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"count": len(user_ids),
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"users": user_ids
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}
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@app.get("/api/users/export/txt")
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async def export_users_to_txt():
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"""导出用户列表到txt文件"""
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users_file = os.path.join(config.DATA_DIR, "users.txt")
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if not os.path.exists(users_file):
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raise HTTPException(status_code=404, detail="用户文件不存在")
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with open(users_file, 'r', encoding='utf-8') as f:
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content = f.read()
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return StreamingResponse(
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iter([content]),
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media_type="text/plain",
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headers={
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"Content-Disposition": f"attachment; filename=users_{datetime.now().strftime('%Y%m%d_%H%M%S')}.txt"
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}
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)
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# ========== 登录相关 API ==========
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class LoginStatusResponse(BaseModel):
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logged_in: bool
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login_time: Optional[str] = None
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expire_time: Optional[str] = None
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@app.get("/api/login/status", response_model=LoginStatusResponse)
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async def get_login_status():
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"""获取登录状态"""
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auth_file = os.path.join(config.DATA_DIR, "auth_state.json")
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if not os.path.exists(auth_file):
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return LoginStatusResponse(logged_in=False)
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try:
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with open(auth_file, 'r', encoding='utf-8') as f:
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auth_data = json.load(f)
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# 检查是否过期
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login_time = auth_data.get("login_time")
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expire_time = auth_data.get("expire_time")
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current_time = datetime.now().isoformat()
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if expire_time and current_time > expire_time:
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# 登录已过期，清除状态
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os.remove(auth_file)
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return LoginStatusResponse(logged_in=False)
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return LoginStatusResponse(
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logged_in=auth_data.get("logged_in", False),
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login_time=login_time,
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expire_time=expire_time
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)
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except Exception:
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return LoginStatusResponse(logged_in=False)
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@app.post("/api/login/qrcode")
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async def generate_qrcode():
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"""模拟登录成功"""
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import uuid
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from datetime import datetime, timedelta
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# 生成登录状态（模拟登录成功）
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login_id = str(uuid.uuid4())
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current_time = datetime.now()
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expire_time = current_time + timedelta(hours=24) # 24小时后过期
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# 保存登录状态到文件
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auth_file = os.path.join(config.DATA_DIR, "auth_state.json")
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auth_data = {
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"logged_in": True,
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"login_time": current_time.isoformat(),
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"expire_time": expire_time.isoformat(),
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"login_id": login_id,
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"platform": "xiaohongshu"
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}
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with open(auth_file, 'w', encoding='utf-8') as f:
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json.dump(auth_data, f, ensure_ascii=False, indent=2)
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# 返回登录信息
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return {
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"login_id": login_id,
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"login_time": current_time.isoformat(),
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"expire_time": expire_time.isoformat(),
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"message": "登录成功（模拟）",
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"expire_in_hours": 24
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}
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@app.post("/api/logout")
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async def logout():
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"""退出登录"""
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auth_file = os.path.join(config.DATA_DIR, "auth_state.json")
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try:
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if os.path.exists(auth_file):
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os.remove(auth_file)
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return {
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"success": True,
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"message": "已退出登录"
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}
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"退出登录失败: {str(e)}")
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@app.get("/api/data/{user_id}")
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async def get_user_data(user_id: str):
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"""获取用户采集数据"""
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file_path = os.path.join(config.DATA_DIR, f"{user_id}.json")
|
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|
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if not os.path.exists(file_path):
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raise HTTPException(status_code=404, detail="用户数据不存在")
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with open(file_path, 'r', encoding='utf-8') as f:
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data = json.load(f)
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return data
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@app.get("/api/events")
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async def event_stream():
|
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"""SSE 事件流"""
|
|
async def event_generator():
|
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while True:
|
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try:
|
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# 等待事件，超时 1 秒发送心跳
|
|
event = await asyncio.wait_for(
|
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app_state.event_queue.get(),
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timeout=1.0
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)
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# 更新状态
|
|
if event["type"] == "log":
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# 日志不需要更新状态
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pass
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elif event["type"] == "progress":
|
|
app_state.completed_users = event.get("completed", app_state.completed_users)
|
|
app_state.failed_users = event.get("failed", app_state.failed_users)
|
|
app_state.active_threads = event.get("active_threads", app_state.active_threads)
|
|
elif event["type"] == "user_status":
|
|
if event["user_id"] in app_state.users_status:
|
|
app_state.users_status[event["user_id"]]["status"] = event["status"]
|
|
app_state.users_status[event["user_id"]]["note_count"] = event.get("note_count", 0)
|
|
app_state.users_status[event["user_id"]]["thread_id"] = event.get("thread_id")
|
|
elif event["type"] == "thread_status":
|
|
app_state.thread_status[event["thread_id"]] = {
|
|
"status": event["status"],
|
|
"current_user": event.get("current_user")
|
|
}
|
|
# 更新活跃线程数
|
|
app_state.active_threads = sum(
|
|
1 for s in app_state.thread_status.values() if s.get("status") == "busy"
|
|
)
|
|
|
|
# 发送事件
|
|
yield f"data: {json.dumps(event)}\n\n"
|
|
|
|
except asyncio.TimeoutError:
|
|
# 发送心跳
|
|
yield ": heartbeat\n\n"
|
|
|
|
except Exception as e:
|
|
# 错误事件
|
|
yield f"data: {json.dumps({'type': 'error', 'message': str(e)})}\n\n"
|
|
|
|
return StreamingResponse(
|
|
event_generator(),
|
|
media_type="text/event-stream",
|
|
headers={
|
|
"Cache-Control": "no-cache",
|
|
"Connection": "keep-alive",
|
|
"Access-Control-Allow-Origin": "*"
|
|
}
|
|
)
|
|
|
|
|
|
# ========== Git 相关 API ==========
|
|
|
|
@app.get("/api/git/status")
|
|
async def git_status():
|
|
"""获取 Git 状态"""
|
|
if not os.path.exists("/app/.git"):
|
|
return {
|
|
"enabled": False,
|
|
"message": "不是 Git 仓库"
|
|
}
|
|
|
|
try:
|
|
# 获取当前分支
|
|
result = subprocess.run(
|
|
["git", "branch", "--show-current"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
current_branch = result.stdout.strip()
|
|
|
|
# 获取最新提交
|
|
result = subprocess.run(
|
|
["git", "log", "-1", "--format=%h %s %cr"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
latest_commit = result.stdout.strip()
|
|
|
|
# 检查是否有未提交的更改
|
|
result = subprocess.run(
|
|
["git", "status", "--porcelain"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
has_changes = len(result.stdout.strip()) > 0
|
|
|
|
return {
|
|
"enabled": True,
|
|
"branch": current_branch,
|
|
"latest_commit": latest_commit,
|
|
"has_changes": has_changes,
|
|
"auto_pull_enabled": config.ENABLE_GIT_PULL,
|
|
"auto_pull_interval": config.AUTO_PULL_INTERVAL
|
|
}
|
|
|
|
except Exception as e:
|
|
return {
|
|
"enabled": False,
|
|
"error": str(e)
|
|
}
|
|
|
|
|
|
@app.post("/api/git/pull")
|
|
async def git_pull():
|
|
"""手动拉取最新代码"""
|
|
if not os.path.exists("/app/.git"):
|
|
raise HTTPException(status_code=400, detail="不是 Git 仓库")
|
|
|
|
try:
|
|
# 获取当前分支
|
|
result = subprocess.run(
|
|
["git", "branch", "--show-current"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
current_branch = result.stdout.strip()
|
|
|
|
# 拉取最新代码
|
|
result = subprocess.run(
|
|
["git", "fetch", "origin", current_branch],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
|
|
if result.returncode != 0:
|
|
raise HTTPException(status_code=500, detail=f"拉取失败: {result.stderr}")
|
|
|
|
# 检查是否有更新
|
|
result = subprocess.run(
|
|
["git", "rev-list", "HEAD..origin/" + current_branch, "--count"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
commits_behind = int(result.stdout.strip())
|
|
|
|
if commits_behind == 0:
|
|
return {
|
|
"success": True,
|
|
"message": "已是最新代码",
|
|
"needs_restart": False
|
|
}
|
|
|
|
# 重置到最新代码
|
|
result = subprocess.run(
|
|
["git", "reset", "--hard", "origin/" + current_branch],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
|
|
if result.returncode != 0:
|
|
raise HTTPException(status_code=500, detail=f"重置失败: {result.stderr}")
|
|
|
|
# 检查 Python 文件是否有变化
|
|
result = subprocess.run(
|
|
["git", "diff", "--name-only", "HEAD@{1}", "HEAD"],
|
|
capture_output=True,
|
|
text=True,
|
|
cwd="/app"
|
|
)
|
|
changed_files = result.stdout.strip().split('\n')
|
|
python_changed = any(f.endswith('.py') for f in changed_files if f)
|
|
|
|
return {
|
|
"success": True,
|
|
"message": f"已拉取 {commits_behind} 个新提交",
|
|
"changed_files": changed_files,
|
|
"needs_restart": python_changed,
|
|
"restart_hint": "Python 代码有变化，建议重启容器以应用更新"
|
|
}
|
|
|
|
except HTTPException:
|
|
raise
|
|
except Exception as e:
|
|
raise HTTPException(status_code=500, detail=f"拉取失败: {str(e)}")
|
|
|
|
|
|
@app.post("/api/git/restart")
|
|
async def restart_container():
|
|
"""
|
|
请求重启容器
|
|
注意：这需要在容器外配置重启策略
|
|
"""
|
|
return {
|
|
"success": True,
|
|
"message": "重启请求已接收",
|
|
"methods": [
|
|
"docker restart xiaohongshu-scraper",
|
|
"docker-compose restart"
|
|
]
|
|
}
|
|
|
|
|
|
# ========== 启动事件 ==========
|
|
@app.on_event("startup")
|
|
async def startup_event():
|
|
"""启动时初始化"""
|
|
# 确保数据目录存在
|
|
os.makedirs(config.DATA_DIR, exist_ok=True)
|
|
os.makedirs(config.SCREENSHOT_DIR, exist_ok=True)
|
|
|
|
# 初始化事件队列
|
|
app_state.event_queue = asyncio.Queue()
|
|
|
|
print("=" * 60)
|
|
print("小红书数据采集器 Web 服务启动")
|
|
print(f"访问地址: http://{config.WEB_HOST}:{config.WEB_PORT}")
|
|
print("=" * 60)
|
|
|
|
|
|
@app.on_event("shutdown")
|
|
async def shutdown_event():
|
|
"""关闭时清理"""
|
|
if app_state.scraper:
|
|
app_state.scraper.stop()
|
|
|
|
if app_state.scraper_task:
|
|
app_state.scraper_task.cancel()
|
|
|
|
print("Web 服务已关闭")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import uvicorn
|
|
uvicorn.run(
|
|
"app.web:app",
|
|
host=config.WEB_HOST,
|
|
port=config.WEB_PORT,
|
|
reload=True
|
|
)
|