Files
zhenxun_bot/zhenxun/services/ai/sandbox/drivers/docker.py
T
80fc5b86a7 ✨ feat!(llm): 重构并升级大语言模型服务为全新 AI 智能体框架 (#2146)
* ✨ feat!(llm): 重构并升级大语言模型服务为全新 AI 智能体框架

- 【重构】将原 services/llm 重构并迁移至全新的 services/ai 架构,提供向下兼容垫片
- 【新增】引入 Agent、Team、Workflow 三大智能体与工作流编排范式
- 【新增】引入基于 RAG 的长期向量记忆与中期槽位记忆系统
- 【新增】引入基于 Docker 的安全代码执行沙箱环境
- 【新增】支持 MCP 协议,允许动态管理和调用 MCP 服务
- 【新增】引入输入输出安全合规护栏与自愈反思机制
- 【优化】重构并优化多厂商 API 适配器 (Gemini, OpenAI, DeepSeek, GLM 等)
- 【优化】优化日志脱敏与 Token 预估机制
- 【移除】移除旧版 llm default 和 llm reset-key 命令,新增 llm mcp 管理命令

* 🔧 chore(deps): 更新项目依赖与配置

- 添加 mcp、jieba 和 aiodocker 依赖到配置文件及 requirements.txt
- 在 pyright 配置中设置 reportMissingImports 为 none
- 调整 .gitignore 中 resources 目录的忽略规则

* ♻️ refactor(tools): 重构工具终止机制并清理知识库日志输出

- 统一使用 `context.state["__end_run__"]` 替代 `EndRunResult` 控制任务结束
- 移除文件系统和向量知识库检索工具中 `ToolResult` 的 `.with_log` 调用
- 调整指令处理器(Directive)的返回值为 `tool_res.output`
- 修复部分类型检查警告并优化联合类型判断语法

* ♻️ refactor(tools): 重构工具副作用指令与控制流熔断机制

- 引入 `DirectivePayload` 及 `ToolResult` 的子类以结构化表达工具副作用
- 移除通过 `context.state` 传递魔术变量的隐式控制流设计
- 重构 `DirectiveManager` 处理器接口,直接在处理器中修改 `AgentState` 并构建 `AgentRunResult`
- 在 `StandardAgentExecutor` 中统一通过 `directive_manager` 调度工具返回的副作用指令
- 补全 `MessageBuilder` 中部分核心方法的文档注释

* 🐛 fix(sandbox): 修复 Docker 沙箱容器状态检测与会话清理逻辑

-【修复】修正 `is_alive` 中直接读取私有属性的问题,改用 `show()` 返回值
-【修复】解决 `execute_code` 中缓存的执行器与当前会话不一致的问题
-【优化】在清理工作区前增加容器存活检测,避免向已死容器发送请求
-【优化】创建容器时增加运行状态校验,若已停止则自动从缓存中移除并重建
-【优化】优化容器销毁和清理逻辑,静默处理容器不存在 (404) 的异常

* 📝 docs(core): 补充核心模块初始化方法的文档注释

* 🚨 auto fix by pre-commit hooks

---------

Co-authored-by: webjoin111 <455457521@qq.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-03 08:53:56 +08:00

633 lines
24 KiB
Python

import asyncio
from collections.abc import AsyncGenerator
from contextlib import asynccontextmanager
import io
from pathlib import Path
import re
import tarfile
from typing import Any, ClassVar
import aiodocker
import anyio
from zhenxun.services.ai.config import get_llm_config
from zhenxun.services.ai.core.exceptions import SandboxPathEscapeError, WorkspaceIOError
from zhenxun.services.ai.sandbox.models import (
SandboxBlueprint,
SandboxExecutionResult,
SandboxSessionState,
)
from zhenxun.services.ai.sandbox.protocols import (
InteractiveTerminalSession,
ProcessStreamMessage,
SandboxProcessStream,
)
from zhenxun.services.ai.sandbox.storage import RESOLVE_PATH_HELPER, coerce_posix_path
from zhenxun.services.log import logger
from .base import BaseSandboxClient, BaseSandboxSession
class DockerInteractiveTerminalSession(InteractiveTerminalSession):
"""PTY 交互式会话:接管 Docker Stream,带有防死循环 Token 截断机制"""
def __init__(self, session: "DockerSandboxSession"):
self.session = session
self.exec_stream = None
self.buffer = ""
self._read_task = None
self.ansi_escape = re.compile(r"(?:\x1B[@-_]|[\x80-\x9F])[0-?]*[ -/]*[@-~]")
async def start(self, cmd: str, env: dict[str, str] | None = None) -> None:
if not self.session.container:
raise RuntimeError("沙箱容器未启动")
cmd_list = ["/bin/sh", "-c", cmd] if isinstance(cmd, str) else cmd
env_list = [f"{k}={v}" for k, v in env.items()] if env else None
await self.session._ensure_workspace()
exec_inst = await self.session.container.exec(
cmd=cmd_list,
tty=True,
stdin=True,
stdout=True,
stderr=True,
workdir=self.session.workspace_path,
environment=env_list,
)
self.exec_stream = exec_inst.start(detach=False)
await self.exec_stream.__aenter__()
self._read_task = asyncio.create_task(self._read_loop())
async def _read_loop(self):
try:
while True:
if not self.exec_stream:
break
msg = await self.exec_stream.read_out()
if msg is None:
break
text = msg.data.decode("utf-8", errors="replace")
clean_text = self.ansi_escape.sub("", text)
self.buffer += clean_text
if len(self.buffer) > 20000:
self.buffer = (
"...\n[系统保护:已强行丢弃早期超长输出]\n"
+ self.buffer[-19000:]
)
except Exception as e:
logger.debug(f"[PTY] 流读取结束: {e}")
async def send_input(self, text: str) -> None:
if self.exec_stream:
await self.exec_stream.write_in(text.encode("utf-8"))
async def read_output(self, timeout: int = 5) -> str: # noqa: ASYNC109
lines = self.buffer.split("\n")
return "\n".join(lines[-50:]).strip()
async def interrupt(self) -> None:
if self.exec_stream:
await self.exec_stream.write_in(b"\x03")
async def close(self) -> None:
if self._read_task:
self._read_task.cancel()
if self.exec_stream:
await self.exec_stream.close()
self.exec_stream = None
class DockerSandboxProcessStream(SandboxProcessStream):
"""包装 aiodocker 的流,使其符合 SandboxProcessStream 协议"""
def __init__(self, docker_stream):
self.stream = docker_stream
async def read(self) -> ProcessStreamMessage | None:
msg = await self.stream.read_out()
if msg is None:
return None
return ProcessStreamMessage(stream_type=msg.stream, data=msg.data)
async def write(self, data: bytes) -> None:
await self.stream.write_in(data)
async def close(self) -> None:
await self.stream.close()
class DockerSandboxSession(BaseSandboxSession):
def __init__(
self,
state: SandboxSessionState,
container: Any,
):
super().__init__(state)
self.container = container
self._vfs_helper_installed = False
self._workspace_created = False
async def is_alive(self) -> bool:
if not self.container:
return False
try:
info = await self.container.show()
return info.get("State", {}).get("Running", False)
except Exception:
return False
async def create_pty_session(self) -> InteractiveTerminalSession:
return DockerInteractiveTerminalSession(self)
async def _ensure_workspace(self):
if not self._workspace_created and self.container:
exec_inst = await self.container.exec(
cmd=["/bin/sh", "-c", f"mkdir -p '{self.workspace_path}'"]
)
async with exec_inst.start(detach=False) as stream:
while True:
msg = await stream.read_out()
if msg is None:
break
self._workspace_created = True
@asynccontextmanager
async def create_stream_process(
self,
command: str | list[str],
cwd: str | None = None,
env: dict[str, str] | None = None,
) -> AsyncGenerator[SandboxProcessStream, None]:
cmd_list = ["/bin/sh", "-c", command] if isinstance(command, str) else command
env_list = [f"{k}={v}" for k, v in env.items()] if env else None
await self._ensure_workspace()
exec_inst = await self.container.exec(
cmd=cmd_list,
stdin=True,
stdout=True,
stderr=True,
environment=env_list,
workdir=cwd or self.workspace_path,
)
async with exec_inst.start(detach=False) as raw_stream:
yield DockerSandboxProcessStream(raw_stream)
async def _ensure_vfs_helper(self):
"""预置路径安全探针"""
if self._vfs_helper_installed:
return
check = await self.run_process(f"test -x {RESOLVE_PATH_HELPER.install_path}")
if check.exit_code != 0:
res = await self.run_process(RESOLVE_PATH_HELPER.install_command())
if res.exit_code != 0 or res.error:
raise RuntimeError(f"安装沙箱 VFS 探针失败: {res.stderr or res.error}")
self._vfs_helper_installed = True
async def _validate_remote_path(
self, path: str | Path, for_write: bool = False, base_dir: str | None = None
) -> Path:
"""基于沙箱内真实环境的防软链接逃逸解析"""
base_dir = base_dir or self.workspace_path
target_posix = coerce_posix_path(path).as_posix()
is_write = "1" if for_write else "0"
if not target_posix.startswith("/"):
import posixpath
target_posix = posixpath.normpath(f"{base_dir}/{target_posix}")
if not get_llm_config().sandbox.enable_vfs_helper:
return Path(target_posix)
await self._ensure_vfs_helper()
cmd = [str(RESOLVE_PATH_HELPER.install_path), base_dir, target_posix, is_write]
res = await self.run_process(cmd)
if res.exit_code == 0:
resolved = res.stdout.strip()
if not resolved:
raise WorkspaceIOError(str(path), "路径解析返回为空")
return Path(resolved)
if res.exit_code == 111:
resolved_path = res.stderr.replace("workspace escape: ", "").strip()
raise SandboxPathEscapeError(path=str(path), resolved_path=resolved_path)
raise WorkspaceIOError(str(path), f"探针解析路径异常: {res.stderr}")
async def run_process(
self,
command: str | list[str],
cwd: str | None = None,
timeout: float | None = 30.0, # noqa: ASYNC109
env: dict[str, str] | None = None,
on_output: Any = None,
) -> SandboxExecutionResult:
from zhenxun.services.ai.core.exceptions import SandboxFatalError
self.touch()
if not self.container:
raise SandboxFatalError("沙箱容器未启动或句柄已丢失。")
if not await self.is_alive():
raise SandboxFatalError(
f"沙箱容器 '{self.state.container_name}' 已意外死亡 "
"(可能遭遇 WSL OOMKiller 或被宿主机强杀)。"
)
cmd_list = ["/bin/sh", "-c", command] if isinstance(command, str) else command
env_list = [f"{k}={v}" for k, v in env.items()] if env else None
try:
await self._ensure_workspace()
exec_inst = await self.container.exec(
cmd=cmd_list,
stdout=True,
stderr=True,
workdir=cwd or self.workspace_path,
environment=env_list,
)
stdout_buf = bytearray()
stderr_buf = bytearray()
is_timeout = False
async def _read_stream():
async with exec_inst.start(detach=False) as stream:
while True:
msg = await stream.read_out()
if msg is None:
break
if msg.stream == 1:
stdout_buf.extend(msg.data)
if on_output:
await on_output("stdout", msg.data)
elif msg.stream == 2:
stderr_buf.extend(msg.data)
if on_output:
await on_output("stderr", msg.data)
try:
await asyncio.wait_for(_read_stream(), timeout=timeout)
except asyncio.TimeoutError:
is_timeout = True
info = await exec_inst.inspect()
exit_code = info.get("ExitCode", -1)
return SandboxExecutionResult(
stdout=stdout_buf.decode("utf-8", errors="replace").strip(),
stderr=stderr_buf.decode("utf-8", errors="replace").strip(),
exit_code=exit_code,
is_timeout=is_timeout,
)
except Exception as e:
return SandboxExecutionResult(exit_code=-1, error=str(e))
async def read(self, path: str | Path) -> bytes:
self.touch()
secure_path = await self._validate_remote_path(path, for_write=False)
try:
tar_obj: tarfile.TarFile = await self.container.get_archive(
secure_path.as_posix()
)
members = tar_obj.getmembers()
if not members:
return b""
f = tar_obj.extractfile(members[0])
return f.read() if f else b""
except Exception as e:
raise WorkspaceIOError(str(path), f"读取文件异常: {e}")
async def write(self, path: str | Path, data: bytes) -> bool:
self.touch()
secure_path = await self._validate_remote_path(path, for_write=True)
def _create_tar():
buf = io.BytesIO()
with tarfile.open(fileobj=buf, mode="w") as tar:
tarinfo = tarfile.TarInfo(name=secure_path.name)
tarinfo.size = len(data)
tar.addfile(tarinfo, io.BytesIO(data))
return buf.getvalue()
try:
await self.run_process(f"rm -f '{secure_path.as_posix()}'")
await self.mkdir(secure_path.parent, parents=True)
tar_bytes = await asyncio.to_thread(_create_tar)
await self.container.put_archive(secure_path.parent.as_posix(), tar_bytes)
return True
except Exception as e:
logger.error(f"[Docker I/O] 写入失败: {e}")
return False
async def rm(self, path: str | Path, recursive: bool = False) -> bool:
secure_path = await self._validate_remote_path(path, for_write=True)
flag = "-rf" if recursive else "-f"
res = await self.run_process(f"rm {flag} '{secure_path.as_posix()}'")
return res.exit_code == 0
async def mkdir(self, path: str | Path, parents: bool = False) -> bool:
secure_path = await self._validate_remote_path(path, for_write=True)
flag = "-p" if parents else ""
res = await self.run_process(f"mkdir {flag} '{secure_path.as_posix()}'")
return res.exit_code == 0
async def upload_raw_dir(
self, local_dir_path: str, sandbox_target_path: str
) -> bool:
aio_path = anyio.Path(local_dir_path)
if not await aio_path.exists() or not await aio_path.is_dir():
return False
local_path = Path(local_dir_path)
def _create_tar():
buf = io.BytesIO()
with tarfile.open(fileobj=buf, mode="w") as tar:
for item in local_path.rglob("*"):
if item.is_file():
arcname = item.relative_to(local_path).as_posix()
tar.add(item, arcname=arcname)
return buf.getvalue()
try:
await self.mkdir(sandbox_target_path, parents=True)
tar_bytes = await asyncio.to_thread(_create_tar)
await self.container.put_archive(sandbox_target_path, tar_bytes)
return True
except Exception as e:
from zhenxun.services.log import logger
logger.error(f"[Docker I/O] 上传目录失败: {e}")
return False
async def close(self) -> None:
"""关闭会话:仅清理工作区,不销毁共享容器"""
try:
if await self.is_alive():
await self.rm(self.workspace_path, recursive=True)
except Exception as e:
logger.error(f"清理沙箱会话工作区 {self.session_id} 异常: {e}")
class DockerSandboxClient(BaseSandboxClient):
backend_id = "docker"
_global_docker_client: ClassVar[Any] = None
_containers: ClassVar[dict[str, Any]] = {}
_jupyter_ports: ClassVar[dict[str, int]] = {}
_init_lock = asyncio.Lock()
_engine_available = False
async def create(
self,
session_id: str,
blueprint: SandboxBlueprint | None = None,
) -> BaseSandboxSession:
bp = blueprint or SandboxBlueprint()
eff_image = bp.image or get_llm_config().sandbox.docker_image
eff_cname = bp.container_name
async with self._init_lock:
if DockerSandboxClient._global_docker_client is None:
import aiodocker
temp_client = aiodocker.Docker()
try:
await asyncio.wait_for(temp_client.system.info(), timeout=5.0)
DockerSandboxClient._global_docker_client = temp_client
DockerSandboxClient._engine_available = True
except Exception as e:
await temp_client.close()
from zhenxun.services.ai.core.exceptions import SandboxFatalError
raise SandboxFatalError(
f"无法连接到本地 Docker 引擎 (引擎未启动或无权限): {e}"
)
if eff_cname in DockerSandboxClient._containers:
try:
c = DockerSandboxClient._containers[eff_cname]
info = await c.show()
if not info.get("State", {}).get("Running", False):
raise RuntimeError("Container is not running")
except Exception:
DockerSandboxClient._containers.pop(eff_cname, None)
DockerSandboxClient._jupyter_ports.pop(eff_cname, None)
if eff_cname not in DockerSandboxClient._containers:
port_bindings = {}
import socket
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.bind(("", 0))
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
jupyter_port = s.getsockname()[1]
port_bindings = {"8888/tcp": [{"HostPort": str(jupyter_port)}]}
from zhenxun.configs.path_config import DATA_PATH
safe_image_name = eff_image.replace(":", ".").replace("/", "_")
global_env_dir = (
DATA_PATH / "ai" / "sandbox" / safe_image_name / eff_cname / "env"
)
global_env_dir.mkdir(parents=True, exist_ok=True)
global_home_dir = (
DATA_PATH / "ai" / "sandbox" / safe_image_name / eff_cname / "home"
)
global_home_dir.mkdir(parents=True, exist_ok=True)
binds = [f"{global_env_dir.resolve().as_posix()}:/global_env:rw"]
binds.append(f"{global_home_dir.resolve().as_posix()}:/root:rw")
if bp.bind_mounts:
for mount in bp.bind_mounts:
mode = "ro" if mount.read_only else "rw"
binds.append(f"{mount.host_path}:{mount.sandbox_path}:{mode}")
container_config = {
"Image": eff_image,
"Env": [
"npm_config_prefix=/global_env/npm",
"VIRTUAL_ENV=/global_env/python_venv",
"PATH=/global_env/python_venv/bin:/global_env/npm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"NODE_PATH=/global_env/npm/lib/node_modules",
"npm_config_cache=/tmp/npm_cache",
"PIP_CACHE_DIR=/tmp/pip_cache",
"YARN_CACHE_FOLDER=/tmp/yarn_cache",
"HF_HOME=/tmp/hf_cache",
"JUPYTER_RUNTIME_DIR=/tmp/jupyter_runtime",
"JUPYTER_DATA_DIR=/tmp/jupyter_data",
],
"Cmd": [
"/bin/sh",
"-c",
"mkdir -p /workspace /tmp/jupyter_runtime /tmp/jupyter_data "
"&& chmod 700 /tmp/jupyter_runtime "
"&& tail -f /dev/null",
],
"HostConfig": {
"PortBindings": port_bindings,
"Binds": binds,
},
"Labels": {
"zhenxun_component": "sandbox",
"zhenxun_container_name": eff_cname,
},
}
import uuid
name = f"zx_sandbox_{eff_cname}_{uuid.uuid4().hex[:8]}"
try:
container = (
await DockerSandboxClient._global_docker_client.containers.run(
config=container_config, name=name
)
)
except Exception as ex:
from zhenxun.services.ai.core.exceptions import SandboxFatalError
err_msg = str(ex)
if isinstance(ex, AssertionError):
err_msg = (
"aiodocker AssertionError (可能因宿主机/WSL不支持"
"某些 Docker 挂载特性或端口冲突导致被内核驳回)"
)
raise SandboxFatalError(
f"Docker API 拒绝了容器创建请求。底层原因: {err_msg}"
)
DockerSandboxClient._containers[eff_cname] = container
DockerSandboxClient._jupyter_ports[eff_cname] = jupyter_port
logger.info(
f"[DockerSandbox] 已启动物理隔离容器: {eff_cname} "
f"(镜像: {eff_image})"
)
state = SandboxSessionState(
session_id=session_id,
backend_id=self.backend_id,
container_name=eff_cname,
sandbox_type=self.backend_id,
)
session = DockerSandboxSession(
state, DockerSandboxClient._containers[eff_cname]
)
if eff_cname in DockerSandboxClient._jupyter_ports:
session._meta["jupyter_port"] = DockerSandboxClient._jupyter_ports[
eff_cname
]
check_venv = await session.run_process(
"test -x /global_env/python_venv/bin/pip"
)
if check_venv.exit_code != 0:
logger.info(
f"正在初始化/修复容器 [{eff_cname}] 的共享 Python 虚拟环境...",
command="SandboxManager",
)
init_res = await session.run_process(
"rm -rf /global_env/python_venv && "
"uv venv --seed --system-site-packages /global_env/python_venv || "
"python3 -m venv --system-site-packages /global_env/python_venv"
)
if init_res.exit_code != 0:
logger.error(
f"初始化虚拟环境失败: {init_res.stderr or init_res.stdout}",
command="SandboxManager",
)
return session
async def resume(self, state: SandboxSessionState) -> BaseSandboxSession:
raise NotImplementedError("Docker Driver 不支持无状态重建恢复。")
async def delete(self, session: BaseSandboxSession) -> None:
"""触发会话销毁及引用计数物理回收"""
await session.close()
from zhenxun.services.ai.sandbox.manager import sandbox_manager
cname = session.state.container_name
in_use = any(
s.state.container_name == cname
for sid, s in sandbox_manager._active_sessions.items()
if sid != session.session_id
)
if not in_use and cname in self._containers:
try:
await self._containers[cname].delete(force=True)
self._containers.pop(cname, None)
self._jupyter_ports.pop(cname, None)
logger.info(
f"[DockerSandbox] 物理容器 {cname} "
"已长时间闲置,已触发彻底销毁释放内存。"
)
except Exception as e:
self._containers.pop(cname, None)
self._jupyter_ports.pop(cname, None)
if getattr(e, "status", None) == 404 or "No such container" in str(e):
logger.debug(f"[DockerSandbox] 物理容器 {cname} 已不存在。")
else:
logger.error(f"[DockerSandbox] 闲置销毁物理容器 {cname} 失败: {e}")
@classmethod
async def close_env(cls):
for cname, container in cls._containers.items():
try:
await container.delete(force=True)
logger.info(f"已清理物理容器: {cname}")
except Exception as e:
if getattr(e, "status", None) == 404 or "No such container" in str(e):
logger.debug(f"物理容器 {cname} 已不存在,无需清理。")
else:
logger.error(f"清理物理容器 {cname} 失败: {e}")
cls._containers.clear()
cls._jupyter_ports.clear()
if cls._global_docker_client:
await cls._global_docker_client.close()
cls._global_docker_client = None
@classmethod
async def silent_prune_orphans(cls):
"""供 manager 后台延迟调用的静默清理函数"""
try:
async with aiodocker.Docker() as docker:
await asyncio.wait_for(docker.system.info(), timeout=2.0)
containers = await docker.containers.list(
filters={"label": ["zhenxun_component=sandbox"]}, all=True
)
count = 0
for c in containers:
try:
await c.delete(force=True)
count += 1
except Exception:
pass
if count > 0:
from zhenxun.services.log import logger
logger.info(
f"静默清理:已成功回收 {count} 个上次异常退出遗留的沙箱容器。",
command="SandboxManager",
)
except Exception:
pass
from zhenxun.services.ai.sandbox.registry import SandboxRegistry
SandboxRegistry.register_client("docker", DockerSandboxClient)