mcp-python

.idea/misc.xml

@@ -3,5 +3,5 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.12" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.11" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12 (test1)" project-jdk-type="Python SDK" />
 </project>

.idea/solidstate-tools.iml

@@ -2,7 +2,7 @@
 <module type="PYTHON_MODULE" version="4">
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="Python 3.11" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.12 (test1)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>

mcp/main.py

@@ -8,21 +8,24 @@ from system_tools import create_system_mcp  # 如果暂时不用可先不挂
 
 # 先创建 MCP 实例
 test_mcp = create_test_mcp()
-# system_mcp = create_system_mcp()
+system_mcp = create_system_mcp()
 
 # 关键：在 Starlette 的 lifespan 中启动 MCP 的 session manager
 @contextlib.asynccontextmanager
 async def lifespan(app: Starlette):
     async with contextlib.AsyncExitStack() as stack:
-        await stack.enter_async_context(test_mcp.session_manager.run())
-        # await stack.enter_async_context(system_mcp.session_manager.run())
+        # await stack.enter_async_context(test_mcp.session_manager.run())
+        await stack.enter_async_context(system_mcp.session_manager.run())
         yield  # 服务器运行期间
         # 退出时自动清理
 
 app = Starlette(
     lifespan=lifespan,
     routes=[
-        Mount("/test", app=test_mcp.streamable_http_app()),
-        # Mount("/system", app=system_mcp.streamable_http_app()),
+        # Mount("/test", app=test_mcp.streamable_http_app()),
+        Mount("/system", app=system_mcp.streamable_http_app()),
     ],
-)
+)
+
+# 启动代码为uvicorn main:app --host 0.0.0.0 --port 8000
+# url为http://localhost:8000/system

mcp/system_tools.py

@@ -1,10 +1,13 @@
 # system_tools.py
 import os
+import posixpath
+import stat as pystat
+from typing import Any
+
 import asyncssh
 from mcp.server.fastmcp import FastMCP, Context
 from mcp.server.session import ServerSession
-from lifespan import SharedAppContext  # 导入共享上下文的类型定义
-
+from lifespan import SharedAppContext  # 保持你的现有导入
 
 def create_system_mcp() -> FastMCP:
     """创建一个包含系统操作工具的 MCP 实例。"""
@@ -16,99 +19,390 @@ def create_system_mcp() -> FastMCP:
         streamable_http_path="/"
     )
 
+    def _safe_join(sandbox_root: str, relative_path: str) -> str:
+        """
+        将用户提供的相对路径映射到沙箱根目录内的规范化绝对路径。
+        - 统一使用 POSIX 语义（远端 Linux）
+        - 禁止使用以 '/' 开头的绝对路径
+        - 禁止 '..' 越界，确保最终路径仍在沙箱内
+        """
+        rel = (relative_path or ".").strip()
+
+        # 禁止绝对路径，转为相对
+        if rel.startswith("/"):
+            rel = rel.lstrip("/")
+
+        # 规范化拼接
+        combined = posixpath.normpath(posixpath.join(sandbox_root, rel))
+
+        # 统一尾部斜杠处理，避免边界判断遗漏
+        root_norm = sandbox_root.rstrip("/")
+
+        # 确保仍在沙箱内
+        if combined != root_norm and not combined.startswith(root_norm + "/"):
+            raise ValueError("路径越界：仅允许访问沙箱目录内部")
+
+        # 禁止路径中出现 '..'（进一步加固）
+        parts = [p for p in combined.split("/") if p]
+        if ".." in parts:
+            raise ValueError("非法路径：不允许使用 '..' 跨目录")
+
+        return combined
+
+    # —— 重构后的三个工具：list_files / read_file / write_file ——
     @system_mcp.tool()
-    async def list_files(ctx: Context[ServerSession, dict], path: str = ".") -> str:
+    async def list_files(ctx: Context[ServerSession, dict], path: str = ".") -> list[dict[str, Any]]:
         """
-        列出远程服务器安全沙箱路径下的文件和目录。
-        Args:
-            path: 要查看的相对路径，默认为当前沙箱目录。
-        """
-        try:
-            # 从上下文中获取共享的 SSH 连接和沙箱路径 [1]
-            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
-
-            conn = shared_ctx.ssh_connection
-            sandbox_path = shared_ctx.sandbox_path
-
-            # 安全检查：防止目录穿越攻击
-            if ".." in path.split('/'):
-                return "错误: 不允许使用 '..' 访问上级目录。"
-
-            # 安全地拼接路径
-            target_path = os.path.join(sandbox_path, path)
-            await ctx.info(f"正在列出安全路径: {target_path}")
-
-            # 使用 conn.run() 执行 ls -l 命令
-            command_to_run = f'ls -la {conn.escape(target_path)}'
-            result = await conn.run(command_to_run, check=True)
-            return result.stdout.strip()
-        except asyncssh.ProcessError as e:
-            error_message = f"命令执行失败: {e.stderr.strip()}"
-            await ctx.error(error_message)
-            return error_message
-        except Exception as e:
-            error_message = f"执行 ls 命令时发生未知错误: {e}"
-            await ctx.error(error_message)
-            return error_message
-
-    @system_mcp.tool()
-    async def read_file(ctx: Context[ServerSession, dict], file_path: str) -> str:
-        """
-        读取远程服务器安全沙箱内指定文件的内容。
-        Args:
-            file_path: 相对于沙箱目录的文件路径。
+        列出远程沙箱目录中的文件和子目录（结构化输出）。
+        Returns:
+            list[dict]: [{name, path, is_dir, size, permissions, mtime}]
         """
         try:
             shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
-
             conn = shared_ctx.ssh_connection
-            sandbox_path = shared_ctx.sandbox_path
-            # 安全检查：防止目录穿越
-            if ".." in file_path.split('/'):
-                return "错误: 不允许使用 '..' 访问上级目录。"
+            sandbox_root = shared_ctx.sandbox_path
 
-            target_path = os.path.join(sandbox_path, file_path)
-            await ctx.info(f"正在读取远程文件: {target_path}")
+            target = _safe_join(sandbox_root, path)
+            await ctx.info(f"列出目录：{target}")
 
+            items: list[dict[str, Any]] = []
             async with conn.start_sftp_client() as sftp:
-                async with sftp.open(target_path, 'r') as f:
-                    content = await f.read()
-            return content
+                # 先列出文件名，再逐个 stat 获取属性
+                names = await sftp.listdir(target)  # list[str]
+                for name in names:
+                    item_abs = posixpath.join(target, name)
+                    attrs = None
+                    try:
+                        attrs = await sftp.stat(item_abs)
+                    except Exception:
+                        pass
+
+                    perms = int(attrs.permissions or 0) if attrs else 0
+                    is_dir = bool(pystat.S_ISDIR(perms))
+                    size = int(attrs.size or 0) if attrs and attrs.size is not None else 0
+                    mtime = int(attrs.mtime or 0) if attrs and attrs.mtime is not None else 0
+
+                    items.append({
+                        "name": name,
+                        # 返回相对路径，便于后续工具继续在沙箱内操作
+                        "path": posixpath.join(path.rstrip("/"), name) if path != "/" else name,
+                        "is_dir": is_dir,
+                        "size": size,
+                        "permissions": perms,  # 九进制权限位，例如 0o755（以整型传递）
+                        "mtime": mtime,  # 秒
+                    })
+
+            await ctx.debug(f"目录项数量：{len(items)}")
+            return items
+
         except FileNotFoundError:
-            error_message = f"读取文件失败: 文件 '{file_path}' 不存在。"
-            await ctx.error(error_message)
-            return error_message
+            msg = f"目录不存在或不可访问：{path}"
+            await ctx.error(msg)
+            return [{"error": msg}]
         except Exception as e:
-            await ctx.error(f"读取文件时发生未知错误: {e}")
-            return f"错误: {e}"
+            msg = f"list_files 失败：{e}"
+            await ctx.error(msg)
+            return [{"error": msg}]
 
     @system_mcp.tool()
-    async def write_file(ctx: Context[ServerSession, dict], file_path: str, content: str) -> str:
+    async def read_file(ctx: Context[ServerSession, dict], file_path: str, encoding: str = "utf-8") -> str:
         """
-        向远程服务器安全沙箱内的文件写入内容。如果文件已存在，则会覆盖它。
+        读取远程沙箱内指定文件内容。
         Args:
-            file_path: 相对于沙箱目录的文件路径。
-            content: 要写入文件的文本内容。
+            file_path: 相对于沙箱根的文件路径
+            encoding: 文本编码（默认 utf-8）
+        Returns:
+            文件文本内容（字符串）
         """
         try:
             shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
-
             conn = shared_ctx.ssh_connection
-            sandbox_path = shared_ctx.sandbox_path
+            sandbox_root = shared_ctx.sandbox_path
 
-            # 安全检查
-            if ".." in file_path.split('/'):
-                return "错误: 不允许使用 '..' 访问上级目录。"
-
-            target_path = os.path.join(sandbox_path, file_path)
-            await ctx.info(f"正在向远程文件写入: {target_path}")
+            target = _safe_join(sandbox_root, file_path)
+            await ctx.info(f"读取文件：{target}")
 
             async with conn.start_sftp_client() as sftp:
-                async with sftp.open(target_path, 'w') as f:
-                    await f.write(content)
-            return f"内容已成功写入到沙箱文件 '{file_path}'。"
+                # 以二进制读取，按 encoding 解码为文本
+                async with sftp.open(target, "rb") as f:
+                    data = await f.read()
+            try:
+                content = data.decode(encoding)
+            except Exception:
+                # 如果解码失败，回退为原始字节的 repr
+                content = data.decode(encoding, errors="replace")
+
+            return content
+
+        except FileNotFoundError:
+            msg = f"读取失败：文件不存在 '{file_path}'"
+            await ctx.error(msg)
+            return msg
         except Exception as e:
-            await ctx.error(f"写入文件时发生未知错误: {e}")
+            msg = f"read_file 失败：{e}"
+            await ctx.error(msg)
+            return msg
+
+    @system_mcp.tool()
+    async def write_file(
+            ctx: Context[ServerSession, dict],
+            file_path: str,
+            content: str,
+            encoding: str = "utf-8",
+            create_parents: bool = True,
+    ) -> dict[str, Any]:
+        """
+        写入远程沙箱文件（默认按需创建父目录）。
+        Args:
+            file_path: 相对于沙箱根的文件路径
+            content: 要写入的文本内容
+            encoding: 写入编码（默认 utf-8）
+            create_parents: True 则自动创建父目录
+        Returns:
+            dict: { path, bytes_written }
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, file_path)
+            await ctx.info(f"写入文件：{target}")
+
+            # 可选：创建父目录
+            if create_parents:
+                parent = posixpath.dirname(target)
+                if parent and parent != sandbox_root:
+                    # mkdir -p，更快且不易出错
+                    await conn.run(f"mkdir -p {conn.escape(parent)}", check=True)
+
+            data = content.encode(encoding)
+
+            async with conn.start_sftp_client() as sftp:
+                async with sftp.open(target, "wb") as f:
+                    await f.write(data)
+
+            await ctx.debug(f"写入完成：{len(data)} 字节")
+            return {"path": file_path, "bytes_written": len(data)}
+
+        except Exception as e:
+            msg = f"write_file 失败：{e}"
+            await ctx.error(msg)
+            return {"error": msg}
+
+
+
+
+    @system_mcp.tool()
+    async def make_dir(ctx: Context[ServerSession, dict], path: str, parents: bool = True) -> str:
+        """
+        创建目录（默认支持递归创建父级 -p）。
+        Args:
+            path: 相对于沙箱根的目录路径
+            parents: True 表示使用 `mkdir -p`，False 则只创建最后一级
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, path)
+            if parents:
+                await conn.run(f"mkdir -p {conn.escape(target)}", check=True)
+            else:
+                async with conn.start_sftp_client() as sftp:
+                    await sftp.mkdir(target)
+
+            await ctx.info(f"目录已创建: {target}")
+            return f"目录已创建: {path}"
+        except Exception as e:
+            await ctx.error(f"创建目录失败: {e}")
             return f"错误: {e}"
 
+    @system_mcp.tool()
+    async def delete_file(ctx: Context[ServerSession, dict], file_path: str) -> str:
+        """
+        删除文件（非目录）。
+        Args:
+            file_path: 相对于沙箱根的文件路径
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, file_path)
+            async with conn.start_sftp_client() as sftp:
+                await sftp.remove(target)
+
+            await ctx.info(f"文件已删除: {target}")
+            return f"文件已删除: {file_path}"
+        except FileNotFoundError:
+            msg = f"删除失败：文件不存在 '{file_path}'"
+            await ctx.error(msg)
+            return msg
+        except Exception as e:
+            await ctx.error(f"删除文件失败: {e}")
+            return f"错误: {e}"
+
+    @system_mcp.tool()
+    async def delete_dir(ctx: Context[ServerSession, dict], dir_path: str, recursive: bool = False) -> str:
+        """
+        删除目录。
+        Args:
+            dir_path: 相对于沙箱根的目录路径
+            recursive: True 则递归删除（rm -rf），False 仅删除空目录（rmdir）
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, dir_path)
+
+            if recursive:
+                await conn.run(f"rm -rf {conn.escape(target)}", check=True)
+            else:
+                async with conn.start_sftp_client() as sftp:
+                    await sftp.rmdir(target)
+
+            await ctx.info(f"目录已删除: {target}")
+            return f"目录已删除: {dir_path}"
+        except FileNotFoundError:
+            msg = f"删除失败：目录不存在 '{dir_path}' 或非空"
+            await ctx.error(msg)
+            return msg
+        except Exception as e:
+            await ctx.error(f"删除目录失败: {e}")
+            return f"错误: {e}"
+
+    @system_mcp.tool()
+    async def move_path(ctx: Context[ServerSession, dict], src: str, dst: str, overwrite: bool = True) -> str:
+        """
+        移动/重命名文件或目录。
+        Args:
+            src: 源路径（相对于沙箱根）
+            dst: 目标路径（相对于沙箱根）
+            overwrite: True 使用 mv -f 覆盖同名目标
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            src_abs = _safe_join(sandbox_root, src)
+            dst_abs = _safe_join(sandbox_root, dst)
+
+            flags = "-f" if overwrite else ""
+            await conn.run(f"mv {flags} {conn.escape(src_abs)} {conn.escape(dst_abs)}", check=True)
+
+            await ctx.info(f"已移动: {src_abs} -> {dst_abs}")
+            return f"已移动: {src} -> {dst}"
+        except FileNotFoundError:
+            msg = f"移动失败：源不存在 '{src}'"
+            await ctx.error(msg)
+            return msg
+        except Exception as e:
+            await ctx.error(f"移动失败: {e}")
+            return f"错误: {e}"
+
+    @system_mcp.tool()
+    async def copy_path(
+        ctx: Context[ServerSession, dict],
+        src: str,
+        dst: str,
+        recursive: bool = True,
+        overwrite: bool = True,
+    ) -> str:
+        """
+        复制文件或目录。
+        Args:
+            src: 源路径（相对于沙箱根）
+            dst: 目标路径（相对于沙箱根）
+            recursive: True 则使用 -r 递归复制目录
+            overwrite: True 使用 -f 覆盖同名目标
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            src_abs = _safe_join(sandbox_root, src)
+            dst_abs = _safe_join(sandbox_root, dst)
+
+            flags = []
+            if recursive:
+                flags.append("-r")
+            if overwrite:
+                flags.append("-f")
+
+            await conn.run(f"cp {' '.join(flags)} {conn.escape(src_abs)} {conn.escape(dst_abs)}", check=True)
+
+            await ctx.info(f"已复制: {src_abs} -> {dst_abs}")
+            return f"已复制: {src} -> {dst}"
+        except FileNotFoundError:
+            msg = f"复制失败：源不存在 '{src}'"
+            await ctx.error(msg)
+            return msg
+        except Exception as e:
+            await ctx.error(f"复制失败: {e}")
+            return f"错误: {e}"
+
+    @system_mcp.tool()
+    async def exists(ctx: Context[ServerSession, dict], path: str) -> bool:
+        """
+        判断路径（文件/目录）是否存在。
+        Args:
+            path: 相对于沙箱根的路径
+        Returns:
+            True/False
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, path)
+            async with conn.start_sftp_client() as sftp:
+                await sftp.stat(target)
+            return True
+        except FileNotFoundError:
+            return False
+        except Exception as e:
+            await ctx.error(f"exists 检查失败: {e}")
+            return False
+
+    @system_mcp.tool()
+    async def stat_path(ctx: Context[ServerSession, dict], path: str) -> dict:
+        """
+        查看远程路径属性（结构化输出）。
+        Args:
+            path: 相对于沙箱根的路径
+        Returns:
+            dict: { path, size, is_dir, permissions, mtime }
+        """
+        try:
+            shared_ctx: SharedAppContext = ctx.request_context.lifespan_context["shared_context"]
+            conn = shared_ctx.ssh_connection
+            sandbox_root = shared_ctx.sandbox_path
+
+            target = _safe_join(sandbox_root, path)
+            async with conn.start_sftp_client() as sftp:
+                attrs = await sftp.stat(target)
+
+            perms = attrs.permissions or 0
+            return {
+                "path": target,
+                "size": int(attrs.size or 0),
+                "is_dir": bool(pystat.S_ISDIR(perms)),
+                "permissions": perms,           # 九进制权限位，例：0o755
+                "mtime": int(attrs.mtime or 0), # 秒
+            }
+        except FileNotFoundError:
+            msg = f"路径不存在: {path}"
+            await ctx.error(msg)
+            return {"error": msg}
+        except Exception as e:
+            await ctx.error(f"stat 失败: {e}")
+            return {"error": str(e)}
     return system_mcp

mcp/uvicorn/main.py

@@ -0,0 +1,10 @@
+
+# main.py
+
+from fastapi import FastAPI
+
+app = FastAPI()
+
+@app.get("/")
+async def read_root():
+    return {"message": "Hello, World!"}