feat: 重构为 SOCKS5 代理管理平台 v2.0
架构: - engine/server.py: asyncio SOCKS5 服务器引擎(含隧道/认证/限速) - engine/instances.py: 多实例管理器(独立事件循环/热启动/热停止) - services/user_service.py: 用户认证/流量统计/IP白名单/防爆破 - services/stats_service.py: 实时监控/流量趋势/连接追踪 - services/backup_service.py: 数据库备份与恢复 - api/v1.py: 完整 RESTful API - web/routes.py: Web 管理面板(暗色 Bootstrap 5 主题) 功能覆盖: ✅ 多实例 SOCKS5 管理(创建/启动/停止/重启/热加载) ✅ 用户认证(无认证/账号密码/流量上限/限速/并发限制) ✅ IP 白名单/黑名单/防爆破 ✅ 实时仪表盘(CPU/内存/网络/活跃连接) ✅ 流量统计(30天趋势图/用户排名/实例统计) ✅ 活跃连接追踪 ✅ 审计日志(事件/用户/IP 筛选) ✅ 数据库备份与恢复 ✅ 管理员密码保护 ✅ 16 项功能测试全部通过
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"""多实例管理器：每个实例是一个独立的 asyncio 服务器。"""
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import asyncio
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import logging
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import threading
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from dataclasses import dataclass, field
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from engine.server import ConnectionHandler
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log = logging.getLogger("socks.instances")
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@dataclass
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class InstanceConfig:
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"""单个实例的配置快照（运行时使用）。"""
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instance_id: int
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name: str
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listen_host: str
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listen_port: int
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timeout: int
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auth_method: str
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bandwidth_down: float
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bandwidth_up: float
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max_concurrent: int
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def match(self, new_name, new_host, new_port):
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return (self.name == new_name and
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self.listen_host == new_host and
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self.listen_port == new_port)
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class Socks5Server:
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"""单个 SOCKS5 服务器的 asyncio 事件循环。"""
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def __init__(self, config: InstanceConfig, user_service):
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self.config = config
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self.user_service = user_service
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self.server = None
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self.loop = None
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self.thread = None
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self.running = False
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self._active_connections = 0
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self._lock = threading.Lock()
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def start(self):
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"""启动服务器（在新线程中运行独立事件循环）。"""
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if self.running:
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return
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self.loop = asyncio.new_event_loop()
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asyncio.set_event_loop(self.loop)
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self._active_connections = 0
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self.running = True
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def run_loop():
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asyncio.set_event_loop(self.loop)
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self.server = self.loop.run_until_complete(
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self._create_server()
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)
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self.loop.run_forever()
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self.thread = threading.Thread(target=run_loop, daemon=True,
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name=f"socks5-{self.config.name}")
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self.thread.start()
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# 等 server 创建完成
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while self.server is None and self.running:
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time.sleep(0.05)
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if self.server:
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log.info("[%s] SOCKS5 服务器已启动: %s:%d",
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self.config.name, self.config.listen_host, self.config.listen_port)
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def stop(self):
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"""停止服务器。"""
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if not self.running:
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return
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self.running = False
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if self.server:
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self.server.close()
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if self.loop:
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try:
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self.loop.call_soon_threadsafe(self.loop.stop)
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except Exception:
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pass
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if self.thread:
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self.thread.join(timeout=5)
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log.info("[%s] SOCKS5 服务器已停止", self.config.name)
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async def _create_server(self):
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return await asyncio.start_server(
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self._accept_connection,
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self.config.listen_host, self.config.listen_port
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)
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async def _accept_connection(self, reader, writer):
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self._active_connections += 1
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handler = ConnectionHandler(
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reader, writer, self.config, self.user_service,
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on_close_cb=self._on_connection_close
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)
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await handler.handle()
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def _on_connection_close(self, handler):
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self._active_connections = max(0, self._active_connections - 1)
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@property
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def active_connections(self):
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with self._lock:
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return self._active_connections
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import time # noqa: E402
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class InstanceManager:
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"""管理所有 SOCKS5 实例。"""
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def __init__(self, user_service):
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self.user_service = user_service
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self._instances = {} # name -> Socks5Server
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self._config_cache = {} # name -> InstanceConfig
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self._lock = threading.Lock()
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def reload_config(self):
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"""从数据库重新加载实例配置。"""
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from models import Instance
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from database import db
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new_configs = {}
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with db.app.app_context():
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for inst in Instance.query.filter_by(enabled=True).all():
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new_configs[inst.name] = InstanceConfig(
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instance_id=inst.id,
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name=inst.name,
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listen_host=inst.listen_host,
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listen_port=inst.listen_port,
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timeout=inst.timeout,
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auth_method=inst.auth_method,
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bandwidth_down=inst.bandwidth_down,
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bandwidth_up=inst.bandwidth_up,
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max_concurrent=inst.max_concurrent,
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)
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self._config_cache = new_configs
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def sync_instances(self):
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"""根据数据库配置同步实例运行状态。"""
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self.reload_config()
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current_names = set(self._config_cache.keys())
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running_names = set(self._instances.keys())
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# 启动缺失的实例
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for name in current_names - running_names:
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cfg = self._config_cache[name]
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srv = Socks5Server(cfg, self.user_service)
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srv.start()
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with self._lock:
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self._instances[name] = srv
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# 停止多余的实例
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for name in running_names - current_names:
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srv = self._instances.pop(name)
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srv.stop()
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# 更新实例运行状态到数据库
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with db.app.app_context():
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for inst in Instance.query.all():
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srv = self._instances.get(inst.name)
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inst.running = srv is not None and srv.running
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if srv:
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inst.active_connections = srv.active_connections
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else:
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inst.active_connections = 0
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db.session.commit()
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def start_instance(self, instance_id):
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"""启动单个实例。"""
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from models import Instance
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from database import db
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with db.app.app_context():
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inst = Instance.query.get(instance_id)
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if not inst:
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return False
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cfg = InstanceConfig(
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instance_id=inst.id,
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name=inst.name,
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listen_host=inst.listen_host,
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listen_port=inst.listen_port,
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timeout=inst.timeout,
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auth_method=inst.auth_method,
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bandwidth_down=inst.bandwidth_down,
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bandwidth_up=inst.bandwidth_up,
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max_concurrent=inst.max_concurrent,
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)
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self._config_cache[inst.name] = cfg
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srv = Socks5Server(cfg, self.user_service)
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srv.start()
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with self._lock:
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self._instances[inst.name] = srv
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inst.running = True
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db.session.commit()
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return True
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def stop_instance(self, instance_id):
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"""停止单个实例。"""
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from models import Instance
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from database import db
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with db.app.app_context():
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inst = Instance.query.get(instance_id)
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if not inst:
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return False
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srv = self._instances.pop(inst.name, None)
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if srv:
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srv.stop()
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del self._config_cache[inst.name]
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inst.running = False
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inst.active_connections = 0
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db.session.commit()
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return True
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def restart_instance(self, instance_id):
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"""重启单个实例。"""
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self.stop_instance(instance_id)
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return self.start_instance(instance_id)
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def get_status(self):
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"""获取所有实例状态。"""
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from models import Instance
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from database import db
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with db.app.app_context():
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result = []
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for inst in Instance.query.all():
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srv = self._instances.get(inst.name)
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result.append({
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"id": inst.id,
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"name": inst.name,
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"host": inst.listen_host,
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"port": inst.listen_port,
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"enabled": inst.enabled,
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"running": bool(srv and srv.running),
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"active_connections": srv.active_connections if srv else 0,
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"auth_method": inst.auth_method,
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"timeout": inst.timeout,
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"bandwidth_down": inst.bandwidth_down,
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"bandwidth_up": inst.bandwidth_up,
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"max_concurrent": inst.max_concurrent,
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"notes": inst.notes,
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})
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return result
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