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Merge branch 'main' into pr-815

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Re-bin
2026-02-20 08:57:02 +00:00
parent 3ac5513004 9f0928fde6
commit 44eb1bdca2
32 changed files with 648 additions and 314 deletions
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nanobot/agent/tools/filesystem.py
+33 -26
View File
@@ -6,9 +6,12 @@ from typing import Any
from nanobot.agent.tools.base import Tool
def _resolve_path(path: str, allowed_dir: Path | None = None) -> Path:
"""Resolve path and optionally enforce directory restriction."""
resolved = Path(path).expanduser().resolve()
def _resolve_path(path: str, workspace: Path | None = None, allowed_dir: Path | None = None) -> Path:
"""Resolve path against workspace (if relative) and enforce directory restriction."""
p = Path(path).expanduser()
if not p.is_absolute() and workspace:
p = workspace / p
resolved = p.resolve()
if allowed_dir and not str(resolved).startswith(str(allowed_dir.resolve())):
raise PermissionError(f"Path {path} is outside allowed directory {allowed_dir}")
return resolved
@@ -16,8 +19,9 @@ def _resolve_path(path: str, allowed_dir: Path | None = None) -> Path:
class ReadFileTool(Tool):
"""Tool to read file contents."""
def __init__(self, allowed_dir: Path | None = None):
def __init__(self, workspace: Path | None = None, allowed_dir: Path | None = None):
self._workspace = workspace
self._allowed_dir = allowed_dir
@property
@@ -43,12 +47,12 @@ class ReadFileTool(Tool):
async def execute(self, path: str, **kwargs: Any) -> str:
try:
file_path = _resolve_path(path, self._allowed_dir)
file_path = _resolve_path(path, self._workspace, self._allowed_dir)
if not file_path.exists():
return f"Error: File not found: {path}"
if not file_path.is_file():
return f"Error: Not a file: {path}"
content = file_path.read_text(encoding="utf-8")
return content
except PermissionError as e:
@@ -59,8 +63,9 @@ class ReadFileTool(Tool):
class WriteFileTool(Tool):
"""Tool to write content to a file."""
def __init__(self, allowed_dir: Path | None = None):
def __init__(self, workspace: Path | None = None, allowed_dir: Path | None = None):
self._workspace = workspace
self._allowed_dir = allowed_dir
@property
@@ -90,10 +95,10 @@ class WriteFileTool(Tool):
async def execute(self, path: str, content: str, **kwargs: Any) -> str:
try:
file_path = _resolve_path(path, self._allowed_dir)
file_path = _resolve_path(path, self._workspace, self._allowed_dir)
file_path.parent.mkdir(parents=True, exist_ok=True)
file_path.write_text(content, encoding="utf-8")
return f"Successfully wrote {len(content)} bytes to {path}"
return f"Successfully wrote {len(content)} bytes to {file_path}"
except PermissionError as e:
return f"Error: {e}"
except Exception as e:
@@ -102,8 +107,9 @@ class WriteFileTool(Tool):
class EditFileTool(Tool):
"""Tool to edit a file by replacing text."""
def __init__(self, allowed_dir: Path | None = None):
def __init__(self, workspace: Path | None = None, allowed_dir: Path | None = None):
self._workspace = workspace
self._allowed_dir = allowed_dir
@property
@@ -137,24 +143,24 @@ class EditFileTool(Tool):
async def execute(self, path: str, old_text: str, new_text: str, **kwargs: Any) -> str:
try:
file_path = _resolve_path(path, self._allowed_dir)
file_path = _resolve_path(path, self._workspace, self._allowed_dir)
if not file_path.exists():
return f"Error: File not found: {path}"
content = file_path.read_text(encoding="utf-8")
if old_text not in content:
return f"Error: old_text not found in file. Make sure it matches exactly."
# Count occurrences
count = content.count(old_text)
if count > 1:
return f"Warning: old_text appears {count} times. Please provide more context to make it unique."
new_content = content.replace(old_text, new_text, 1)
file_path.write_text(new_content, encoding="utf-8")
return f"Successfully edited {path}"
return f"Successfully edited {file_path}"
except PermissionError as e:
return f"Error: {e}"
except Exception as e:
@@ -163,8 +169,9 @@ class EditFileTool(Tool):
class ListDirTool(Tool):
"""Tool to list directory contents."""
def __init__(self, allowed_dir: Path | None = None):
def __init__(self, workspace: Path | None = None, allowed_dir: Path | None = None):
self._workspace = workspace
self._allowed_dir = allowed_dir
@property
@@ -190,20 +197,20 @@ class ListDirTool(Tool):
async def execute(self, path: str, **kwargs: Any) -> str:
try:
dir_path = _resolve_path(path, self._allowed_dir)
dir_path = _resolve_path(path, self._workspace, self._allowed_dir)
if not dir_path.exists():
return f"Error: Directory not found: {path}"
if not dir_path.is_dir():
return f"Error: Not a directory: {path}"
items = []
for item in sorted(dir_path.iterdir()):
prefix = "📁 " if item.is_dir() else "📄 "
items.append(f"{prefix}{item.name}")
if not items:
return f"Directory {path} is empty"
return "\n".join(items)
except PermissionError as e:
return f"Error: {e}"
nanobot/agent/tools/mcp.py
+19 -7
View File
@@ -3,6 +3,7 @@
from contextlib import AsyncExitStack
from typing import Any
import httpx
from loguru import logger
from nanobot.agent.tools.base import Tool
@@ -59,11 +60,22 @@ async def connect_mcp_servers(
read, write = await stack.enter_async_context(stdio_client(params))
elif cfg.url:
from mcp.client.streamable_http import streamable_http_client
read, write, _ = await stack.enter_async_context(
streamable_http_client(cfg.url)
)
if cfg.headers:
http_client = await stack.enter_async_context(
httpx.AsyncClient(
headers=cfg.headers,
follow_redirects=True
)
)
read, write, _ = await stack.enter_async_context(
streamable_http_client(cfg.url, http_client=http_client)
)
else:
read, write, _ = await stack.enter_async_context(
streamable_http_client(cfg.url)
)
else:
logger.warning(f"MCP server '{name}': no command or url configured, skipping")
logger.warning("MCP server '{}': no command or url configured, skipping", name)
continue
session = await stack.enter_async_context(ClientSession(read, write))
@@ -73,8 +85,8 @@ async def connect_mcp_servers(
for tool_def in tools.tools:
wrapper = MCPToolWrapper(session, name, tool_def)
registry.register(wrapper)
logger.debug(f"MCP: registered tool '{wrapper.name}' from server '{name}'")
logger.debug("MCP: registered tool '{}' from server '{}'", wrapper.name, name)
logger.info(f"MCP server '{name}': connected, {len(tools.tools)} tools registered")
logger.info("MCP server '{}': connected, {} tools registered", name, len(tools.tools))
except Exception as e:
logger.error(f"MCP server '{name}': failed to connect: {e}")
logger.error("MCP server '{}': failed to connect: {}", name, e)
nanobot/agent/tools/shell.py
+8 -1
View File
@@ -26,7 +26,8 @@ class ExecTool(Tool):
r"\brm\s+-[rf]{1,2}\b", # rm -r, rm -rf, rm -fr
r"\bdel\s+/[fq]\b", # del /f, del /q
r"\brmdir\s+/s\b", # rmdir /s
r"\b(format|mkfs|diskpart)\b", # disk operations
r"(?:^|[;&|]\s*)format\b", # format (as standalone command only)
r"\b(mkfs|diskpart)\b", # disk operations
r"\bdd\s+if=", # dd
r">\s*/dev/sd", # write to disk
r"\b(shutdown|reboot|poweroff)\b", # system power
@@ -81,6 +82,12 @@ class ExecTool(Tool):
)
except asyncio.TimeoutError:
process.kill()
# Wait for the process to fully terminate so pipes are
# drained and file descriptors are released.
try:
await asyncio.wait_for(process.wait(), timeout=5.0)
except asyncio.TimeoutError:
pass
return f"Error: Command timed out after {self.timeout} seconds"
output_parts = []
nanobot/agent/tools/web.py
+4 -4
View File
@@ -116,7 +116,7 @@ class WebFetchTool(Tool):
# Validate URL before fetching
is_valid, error_msg = _validate_url(url)
if not is_valid:
return json.dumps({"error": f"URL validation failed: {error_msg}", "url": url})
return json.dumps({"error": f"URL validation failed: {error_msg}", "url": url}, ensure_ascii=False)
try:
async with httpx.AsyncClient(
@@ -131,7 +131,7 @@ class WebFetchTool(Tool):
# JSON
if "application/json" in ctype:
text, extractor = json.dumps(r.json(), indent=2), "json"
text, extractor = json.dumps(r.json(), indent=2, ensure_ascii=False), "json"
# HTML
elif "text/html" in ctype or r.text[:256].lower().startswith(("<!doctype", "<html")):
doc = Document(r.text)
@@ -146,9 +146,9 @@ class WebFetchTool(Tool):
text = text[:max_chars]
return json.dumps({"url": url, "finalUrl": str(r.url), "status": r.status_code,
"extractor": extractor, "truncated": truncated, "length": len(text), "text": text})
"extractor": extractor, "truncated": truncated, "length": len(text), "text": text}, ensure_ascii=False)
except Exception as e:
return json.dumps({"error": str(e), "url": url})
return json.dumps({"error": str(e), "url": url}, ensure_ascii=False)
def _to_markdown(self, html: str) -> str:
"""Convert HTML to markdown."""