207 lines
8.1 KiB
Python
207 lines
8.1 KiB
Python
"""独立的 WebUI 服务器 - 运行在 0.0.0.0:8001"""
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import os
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import asyncio
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import mimetypes
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from pathlib import Path
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import FileResponse
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from uvicorn import Config, Server as UvicornServer
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from src.common.logger import get_logger
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logger = get_logger("webui_server")
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class WebUIServer:
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"""独立的 WebUI 服务器"""
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def __init__(self, host: str = "0.0.0.0", port: int = 8001):
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self.host = host
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self.port = port
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self.app = FastAPI(title="MaiBot WebUI")
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self._server = None
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# 配置 CORS（支持开发环境跨域请求）
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self._setup_cors()
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# 显示 Access Token
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self._show_access_token()
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# 重要：先注册 API 路由，再设置静态文件
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self._register_api_routes()
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self._setup_static_files()
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def _setup_cors(self):
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"""配置 CORS 中间件"""
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# 开发环境需要允许前端开发服务器的跨域请求
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self.app.add_middleware(
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CORSMiddleware,
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allow_origins=[
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"http://localhost:5173", # Vite 开发服务器
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"http://127.0.0.1:5173",
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"http://localhost:8001", # 生产环境
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"http://127.0.0.1:8001",
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],
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allow_credentials=True, # 允许携带 Cookie
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allow_methods=["*"],
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allow_headers=["*"],
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)
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logger.debug("✅ CORS 中间件已配置")
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def _show_access_token(self):
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"""显示 WebUI Access Token"""
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try:
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from src.webui.token_manager import get_token_manager
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token_manager = get_token_manager()
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current_token = token_manager.get_token()
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logger.info(f"🔑 WebUI Access Token: {current_token}")
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logger.info("💡 请使用此 Token 登录 WebUI")
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except Exception as e:
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logger.error(f"❌ 获取 Access Token 失败: {e}")
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def _setup_static_files(self):
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"""设置静态文件服务"""
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# 确保正确的 MIME 类型映射
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mimetypes.init()
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mimetypes.add_type("application/javascript", ".js")
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mimetypes.add_type("application/javascript", ".mjs")
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mimetypes.add_type("text/css", ".css")
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mimetypes.add_type("application/json", ".json")
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base_dir = Path(__file__).parent.parent.parent
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static_path = base_dir / "webui" / "dist"
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if not static_path.exists():
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logger.warning(f"❌ WebUI 静态文件目录不存在: {static_path}")
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logger.warning("💡 请先构建前端: cd webui && npm run build")
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return
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if not (static_path / "index.html").exists():
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logger.warning(f"❌ 未找到 index.html: {static_path / 'index.html'}")
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logger.warning("💡 请确认前端已正确构建")
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return
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# 处理 SPA 路由 - 注意：这个路由优先级最低
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@self.app.get("/{full_path:path}", include_in_schema=False)
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async def serve_spa(full_path: str):
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"""服务单页应用 - 只处理非 API 请求"""
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# 如果是根路径，直接返回 index.html
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if not full_path or full_path == "/":
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return FileResponse(static_path / "index.html", media_type="text/html")
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# 检查是否是静态文件
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file_path = static_path / full_path
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if file_path.is_file() and file_path.exists():
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# 自动检测 MIME 类型
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media_type = mimetypes.guess_type(str(file_path))[0]
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return FileResponse(file_path, media_type=media_type)
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# 其他路径返回 index.html（SPA 路由）
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return FileResponse(static_path / "index.html", media_type="text/html")
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logger.info(f"✅ WebUI 静态文件服务已配置: {static_path}")
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def _register_api_routes(self):
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"""注册所有 WebUI API 路由"""
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try:
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# 导入所有 WebUI 路由
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from src.webui.routes import router as webui_router
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from src.webui.logs_ws import router as logs_router
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from src.webui.knowledge_routes import router as knowledge_router
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# 导入本地聊天室路由
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from src.webui.chat_routes import router as chat_router
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# 注册路由
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self.app.include_router(webui_router)
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self.app.include_router(logs_router)
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self.app.include_router(knowledge_router)
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self.app.include_router(chat_router)
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logger.info("✅ WebUI API 路由已注册")
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except Exception as e:
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logger.error(f"❌ 注册 WebUI API 路由失败: {e}", exc_info=True)
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async def start(self):
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"""启动服务器"""
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# 预先检查端口是否可用
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if not self._check_port_available():
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error_msg = f"❌ WebUI 服务器启动失败: 端口 {self.port} 已被占用"
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logger.error(error_msg)
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logger.error(f"💡 请检查是否有其他程序正在使用端口 {self.port}")
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logger.error("💡 可以通过环境变量 WEBUI_PORT 修改 WebUI 端口")
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logger.error(f"💡 Windows 用户可以运行: netstat -ano | findstr :{self.port}")
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logger.error(f"💡 Linux/Mac 用户可以运行: lsof -i :{self.port}")
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raise OSError(f"端口 {self.port} 已被占用，无法启动 WebUI 服务器")
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config = Config(
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app=self.app,
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host=self.host,
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port=self.port,
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log_config=None,
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access_log=False,
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)
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self._server = UvicornServer(config=config)
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logger.info("🌐 WebUI 服务器启动中...")
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logger.info(f"🌐 访问地址: http://{self.host}:{self.port}")
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if self.host == "0.0.0.0":
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logger.info(f"本机访问请使用 http://localhost:{self.port}")
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try:
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await self._server.serve()
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except OSError as e:
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# 处理端口绑定相关的错误
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if "address already in use" in str(e).lower() or e.errno in (98, 10048): # 98: Linux, 10048: Windows
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logger.error(f"❌ WebUI 服务器启动失败: 端口 {self.port} 已被占用")
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logger.error(f"💡 请检查是否有其他程序正在使用端口 {self.port}")
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logger.error("💡 可以通过环境变量 WEBUI_PORT 修改 WebUI 端口")
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else:
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logger.error(f"❌ WebUI 服务器启动失败 (网络错误): {e}")
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raise
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except Exception as e:
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logger.error(f"❌ WebUI 服务器运行错误: {e}", exc_info=True)
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raise
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def _check_port_available(self) -> bool:
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"""检查端口是否可用"""
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import socket
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try:
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
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s.settimeout(1)
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# 尝试绑定端口
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s.bind((self.host if self.host != "0.0.0.0" else "127.0.0.1", self.port))
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return True
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except OSError:
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return False
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async def shutdown(self):
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"""关闭服务器"""
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if self._server:
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logger.info("正在关闭 WebUI 服务器...")
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self._server.should_exit = True
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try:
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await asyncio.wait_for(self._server.shutdown(), timeout=3.0)
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logger.info("✅ WebUI 服务器已关闭")
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except asyncio.TimeoutError:
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logger.warning("⚠️ WebUI 服务器关闭超时")
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except Exception as e:
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logger.error(f"❌ WebUI 服务器关闭失败: {e}")
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finally:
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self._server = None
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# 全局 WebUI 服务器实例
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_webui_server = None
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def get_webui_server() -> WebUIServer:
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"""获取全局 WebUI 服务器实例"""
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global _webui_server
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if _webui_server is None:
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# 从环境变量读取配置
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host = os.getenv("WEBUI_HOST", "0.0.0.0")
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port = int(os.getenv("WEBUI_PORT", "8001"))
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_webui_server = WebUIServer(host=host, port=port)
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return _webui_server
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