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synced 2026-09-20 08:03:34 +08:00
784 lines
32 KiB
Python
784 lines
32 KiB
Python
"""执行 Shell 命令工具。"""
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from __future__ import annotations
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import asyncio
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import codecs
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import json
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import os
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import signal
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import subprocess
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from collections import deque
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from dataclasses import dataclass, field
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from tempfile import NamedTemporaryFile
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from typing import Any, Literal, Optional, TextIO, Type
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from pydantic import BaseModel, Field
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from app.agent.shell import build_agent_subprocess_env, resolve_agent_cwd, resolve_agent_shell
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from app.agent.terminal.manager import (
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TERMINAL_WAIT_DEFAULT_MS,
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TERMINAL_YIELD_DEFAULT_MS,
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get_terminal_session_manager,
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)
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from app.agent.terminal.output import TERMINAL_DEFAULT_READ_BYTES, TERMINAL_MAX_READ_BYTES, TerminalOutputError
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from app.agent.terminal.ownership import TerminalAccessError, TerminalScope, require_terminal_scope
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from app.agent.tools.base import DEFAULT_TOOL_RESULT_MAX_CHARS, MoviePilotTool
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from app.agent.tools.impl._command_safety import validate_command_safety
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from app.agent.tools.tags import ToolTag
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from app.runtime.log import logger
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from app.runtime.settings import get_runtime_setting
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DEFAULT_TIMEOUT_SECONDS = 60
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MAX_TIMEOUT_SECONDS = 300
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MAX_OUTPUT_PREVIEW_BYTES = 32 * 1024
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MAX_OUTPUT_HEAD_BYTES = 16 * 1024
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MAX_OUTPUT_TAIL_BYTES = 16 * 1024
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READ_CHUNK_SIZE = 4096
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KILL_GRACE_SECONDS = 3
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COMMAND_CONCURRENCY_LIMIT = 2
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_command_semaphore = asyncio.Semaphore(COMMAND_CONCURRENCY_LIMIT)
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@dataclass
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class _CommandOutput:
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"""保存命令头尾预览，并在超限时将完整输出写入临时文件。"""
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preview_limit_bytes: int
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preview_entries: list[tuple[str, str]] = field(default_factory=list)
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tail_entries: deque[tuple[str, str]] = field(default_factory=deque)
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captured_bytes: int = 0
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tail_bytes: int = 0
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preview_truncated: bool = False
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temp_file_path: Optional[str] = None
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temp_file_handle: Optional[TextIO] = None
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last_written_stream: Optional[str] = None
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@staticmethod
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def _clip_text_to_bytes(text: str, byte_limit: int) -> str:
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"""按 UTF-8 字节数截断文本，避免截断后出现非法字符。"""
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if byte_limit <= 0:
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return ""
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return text.encode("utf-8")[:byte_limit].decode("utf-8", errors="ignore")
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def _write_chunk(self, stream_name: str, text: str) -> None:
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"""把输出分片按 stdout/stderr 分段写入临时文件。"""
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if not self.temp_file_handle or not text:
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return
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if self.last_written_stream != stream_name:
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if self.temp_file_handle.tell() > 0:
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self.temp_file_handle.write("\n")
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title = "标准输出" if stream_name == "stdout" else "错误输出"
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self.temp_file_handle.write(f"[{title}]\n")
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self.last_written_stream = stream_name
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self.temp_file_handle.write(text)
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def _ensure_temp_file(self) -> None:
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"""首次超出预览上限时创建临时文件并补写已缓存预览。"""
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if self.temp_file_handle:
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return
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temp_file = NamedTemporaryFile(
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mode="w",
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encoding="utf-8",
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suffix=".log",
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prefix="moviepilot-command-",
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delete=False,
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)
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self.temp_file_path = temp_file.name
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self.temp_file_handle = temp_file
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for stream_name, chunk in self.preview_entries:
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self._write_chunk(stream_name, chunk)
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def close(self) -> None:
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"""关闭临时文件句柄，确保输出落盘。"""
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if not self.temp_file_handle:
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return
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self.temp_file_handle.flush()
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self.temp_file_handle.close()
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self.temp_file_handle = None
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def append(self, stream_name: str, text: str) -> None:
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"""追加一段输出，超出预览上限后保留头尾预览和完整日志文件。"""
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if not text:
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return
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self._append_tail(stream_name, text)
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if self.temp_file_handle:
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self._write_chunk(stream_name, text)
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return
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chunk_bytes = len(text.encode("utf-8"))
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remaining = self.preview_limit_bytes - self.captured_bytes
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if chunk_bytes <= remaining:
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self.preview_entries.append((stream_name, text))
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self.captured_bytes += chunk_bytes
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return
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self.preview_truncated = True
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self._ensure_temp_file()
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self._write_chunk(stream_name, text)
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preview = self._clip_text_to_bytes(text, remaining)
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if preview:
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self.preview_entries.append((stream_name, preview))
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self.captured_bytes += len(preview.encode("utf-8"))
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def _append_tail(self, stream_name: str, text: str) -> None:
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"""维护固定字节大小的尾部输出，方便定位测试和构建失败信息。"""
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self.tail_entries.append((stream_name, text))
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self.tail_bytes += len(text.encode("utf-8"))
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while self.tail_bytes > MAX_OUTPUT_TAIL_BYTES and self.tail_entries:
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old_stream, old_text = self.tail_entries.popleft()
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old_bytes = len(old_text.encode("utf-8"))
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overflow = self.tail_bytes - MAX_OUTPUT_TAIL_BYTES
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if old_bytes <= overflow:
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self.tail_bytes -= old_bytes
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continue
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kept_text = old_text.encode("utf-8")[overflow:].decode(
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"utf-8", errors="ignore"
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)
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kept_bytes = len(kept_text.encode("utf-8"))
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self.tail_bytes -= old_bytes
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if kept_text:
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self.tail_entries.appendleft((old_stream, kept_text))
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self.tail_bytes += kept_bytes
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@staticmethod
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def _format_entries(entries: list[tuple[str, str]]) -> str:
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"""按 stdout/stderr 切换插入可读的输出分段标题。"""
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parts: list[str] = []
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last_stream: Optional[str] = None
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for stream_name, text in entries:
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if stream_name != last_stream:
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title = "标准输出" if stream_name == "stdout" else "错误输出"
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parts.append(f"\n[{title}]\n")
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last_stream = stream_name
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parts.append(text)
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return "".join(parts).strip()
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@property
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def combined_preview(self) -> str:
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"""返回完整输出或头尾组合预览。"""
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if not self.preview_truncated:
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return self._format_entries(self.preview_entries)
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head_entries: list[tuple[str, str]] = []
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remaining = MAX_OUTPUT_HEAD_BYTES
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for stream_name, text in self.preview_entries:
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if remaining <= 0:
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break
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clipped = self._clip_text_to_bytes(text, remaining)
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if clipped:
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head_entries.append((stream_name, clipped))
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remaining -= len(clipped.encode("utf-8"))
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head = self._format_entries(head_entries)
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tail = self._format_entries(list(self.tail_entries))
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return (
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f"{head}\n\n...(中间输出已省略，完整内容在临时文件中)...\n\n{tail}"
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).strip()
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@property
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def stdout(self) -> str:
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"""返回当前保留的 stdout 预览。"""
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return "".join(
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text for stream_name, text in self.preview_entries if stream_name == "stdout"
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).strip()
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@property
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def stderr(self) -> str:
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"""返回当前保留的 stderr 预览。"""
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return "".join(
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text for stream_name, text in self.preview_entries if stream_name == "stderr"
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).strip()
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class ExecuteCommandInput(BaseModel):
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"""执行 Shell 命令工具的输入参数模型。"""
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action: Optional[Literal["start", "read", "wait", "write", "interrupt", "kill", "run"]] = Field(
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"start",
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description=(
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"Command action. start launches a managed background session and returns "
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"session_id. read/wait/write/interrupt/kill operate on that session. interrupt sends one "
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"interrupt without escalating to a forced kill; kill terminates the session. run executes "
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"once and waits until completion or timeout."
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),
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)
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command: Optional[str] = Field(
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None,
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description="Shell command. Required for action=start or action=run.",
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)
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session_id: Optional[str] = Field(
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None,
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description="Command session id returned by action=start.",
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)
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input_text: Optional[str] = Field(
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None,
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description=(
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"Text to send to stdin for action=write. In pipe mode, \\u0003/\\u0004 are ordinary bytes. "
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"In PTY mode their Ctrl+C/EOF behavior depends on terminal settings. Use action=interrupt for a signal."
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),
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)
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close_stdin: Optional[bool] = Field(
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False, strict=True,
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description=(
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"For action=write in pipe mode, send optional final input then close stdin so the command receives EOF. "
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"Output stays readable. Empty input alone does not send EOF. PTY half-close is not supported."
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),
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)
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signal_name: Optional[str] = Field(
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"TERM",
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description="Signal for action=kill, such as TERM, INT, KILL, or 15. Invalid or unsupported signals are rejected.",
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)
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cwd: Optional[str] = Field(
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None,
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description="Launch directory for start/run. Omitted or relative paths use the MoviePilot root directory; ~ is expanded.",
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)
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shell: Optional[str] = Field(
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None,
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description="Shell executable for start/run. All pipe and PTY launches use the same selection policy and report the selected shell.",
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)
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login: Optional[bool] = Field(
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None, strict=True,
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description=(
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"For start/run, explicitly enable or disable login-shell startup where supported. "
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"POSIX defaults to non-login; Windows preserves its configured shell defaults. "
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"Login startup files can change environment and directory."
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),
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)
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env: Optional[dict[str, Any]] = Field(
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None,
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description="Additional environment variables for action=start or action=run.",
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)
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use_pty: Optional[bool] = Field(
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True,
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description="Use a pseudo terminal for action=start when supported.",
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)
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since_seq: Optional[int] = Field(
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None, ge=0, strict=True,
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description="For read/wait/write/interrupt/kill, last fully delivered output seq. Resume with output_until_seq, never last_seq.",
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)
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since_offset: Optional[int] = Field(
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None, ge=0, strict=True,
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description=(
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"UTF-8 byte offset within the chunk after since_seq. Pass 0 to enable partial-chunk paging; "
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"resume using output_until_seq and output_until_offset together. Omit for legacy whole-chunk reads."
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),
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)
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max_bytes: Optional[int] = Field(
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TERMINAL_DEFAULT_READ_BYTES,
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description="For start/read/wait/write/interrupt/kill, maximum output bytes to return.",
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)
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timeout_ms: Optional[int] = Field(
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TERMINAL_WAIT_DEFAULT_MS,
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description="For action=wait, wait for unread output or output completion; 0 returns immediately without stopping the process.",
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)
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yield_time_ms: Optional[int] = Field(
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TERMINAL_YIELD_DEFAULT_MS, ge=0, strict=True,
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description="For action=start, first-output wait budget in milliseconds (default 250, capped at 10000); 0 returns immediately.",
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)
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timeout: Optional[int] = Field(
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60,
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description="For action=run, max execution time in seconds.",
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)
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confirm_dangerous: Optional[bool] = Field(
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False,
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description=(
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"Explicit confirmation for high-risk commands such as recursive root deletion, "
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"disk formatting, shutdown/reboot, or destructive permission changes."
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),
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)
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class ExecuteCommandTool(MoviePilotTool):
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"""统一执行和管理 Shell 命令的 Agent 工具。"""
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name: str = "execute_command"
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tags: list[str] = [
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ToolTag.Read,
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ToolTag.Command,
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ToolTag.Admin,
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]
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description: str = (
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"Start and manage shell commands on the server. By default action=start "
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"launches a background session, waits briefly for initial output, then returns its session_id and output cursor. "
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"Continue with both output_until_seq and output_until_offset; last_seq is not a consumed cursor. "
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"Call the same tool with action=read, wait, "
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"write, interrupt, or kill to poll output, wait in short segments, send stdin, "
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"send one interrupt, or terminate it. write(close_stdin=true) sends EOF in pipe mode after optional final input; "
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"PTY input and output cannot be half-closed. start/run share cwd, shell and login selection. "
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"Use action=run only when a one-shot bounded command result "
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"is preferred. run returns JSON with exit_code, timed_out, execution_outcome, "
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"output preview and optional output_file. Only a normal zero exit is success; "
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"a timeout does not undo any side effects."
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)
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args_schema: Type[BaseModel] = ExecuteCommandInput
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require_admin: bool = True
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result_max_chars = TERMINAL_MAX_READ_BYTES + 4096
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def get_tool_message(self, **kwargs) -> Optional[str]:
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"""根据命令动作生成友好的提示消息。"""
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action = kwargs.get("action") or "start"
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command = kwargs.get("command")
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session_id = kwargs.get("session_id")
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if action in {"start", "run"}:
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return f"执行系统命令: {command or ''}"
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if action == "read":
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return f"读取命令输出: {session_id or ''}"
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if action == "wait":
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return f"等待命令会话: {session_id or ''}"
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if action == "write":
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if kwargs.get("close_stdin"):
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return f"关闭命令输入: {session_id or ''}"
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return f"写入命令输入: {session_id or ''}"
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if action == "interrupt":
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return f"中断命令会话: {session_id or ''}"
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if action == "kill":
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return f"终止命令会话: {session_id or ''}"
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return f"处理命令会话: {session_id or command or ''}"
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|
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@staticmethod
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def _dump(payload: dict[str, Any]) -> str:
|
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"""把结构化命令会话结果转换为 Agent 容易解析的 JSON 字符串。"""
|
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return json.dumps(payload, ensure_ascii=False, indent=2)
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|
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@staticmethod
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def _require_session_id(session_id: Optional[str]) -> str:
|
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"""校验会话型 action 必须传入 session_id。"""
|
||
if not session_id:
|
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raise ValueError("action 需要传入 session_id")
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return session_id
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|
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@staticmethod
|
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def _require_command(command: Optional[str]) -> str:
|
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"""校验启动型 action 必须传入 command。"""
|
||
if not command or not command.strip():
|
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raise ValueError("action 需要传入 command")
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return command
|
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|
||
@staticmethod
|
||
def _validate_command(command: str, *, confirmed: bool = False) -> None:
|
||
"""复用旧工具的基础危险命令过滤，避免明显破坏性命令进入 shell。"""
|
||
validate_command_safety(command, confirmed=confirmed)
|
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|
||
@staticmethod
|
||
def _normalize_timeout(timeout: Optional[int]) -> tuple[int, Optional[str]]:
|
||
"""限制一次性执行命令的最长运行时间。"""
|
||
try:
|
||
normalized = int(timeout or DEFAULT_TIMEOUT_SECONDS)
|
||
except (TypeError, ValueError):
|
||
normalized = DEFAULT_TIMEOUT_SECONDS
|
||
|
||
if normalized <= 0:
|
||
return DEFAULT_TIMEOUT_SECONDS, "timeout 参数无效，已使用默认 60 秒"
|
||
if normalized > MAX_TIMEOUT_SECONDS:
|
||
return (
|
||
MAX_TIMEOUT_SECONDS,
|
||
f"timeout 参数超过上限，已从 {normalized} 秒限制为 {MAX_TIMEOUT_SECONDS} 秒",
|
||
)
|
||
return normalized, None
|
||
|
||
@staticmethod
|
||
def _subprocess_kwargs() -> dict:
|
||
"""为一次性命令创建独立进程组，便于超时清理整棵子进程。"""
|
||
kwargs = {
|
||
"stdin": subprocess.DEVNULL,
|
||
"stdout": asyncio.subprocess.PIPE,
|
||
"stderr": asyncio.subprocess.PIPE,
|
||
}
|
||
if os.name == "posix":
|
||
kwargs["start_new_session"] = True
|
||
elif os.name == "nt":
|
||
kwargs["creationflags"] = subprocess.CREATE_NEW_PROCESS_GROUP
|
||
return kwargs
|
||
|
||
@staticmethod
|
||
async def _read_stream(
|
||
stream: asyncio.StreamReader,
|
||
stream_name: str,
|
||
output: _CommandOutput,
|
||
) -> None:
|
||
"""每个流增量解码 UTF-8，跨读取边界的字符不能被提前替换。"""
|
||
decoder = codecs.getincrementaldecoder("utf-8")(errors="replace")
|
||
while True:
|
||
chunk = await stream.read(READ_CHUNK_SIZE)
|
||
if not chunk:
|
||
output.append(stream_name, decoder.decode(b"", final=True))
|
||
break
|
||
output.append(stream_name, decoder.decode(chunk))
|
||
|
||
@staticmethod
|
||
def _terminate_process(process: Any, sig: int) -> None:
|
||
"""向进程组发送终止信号，不支持进程组的平台回退为单进程终止。"""
|
||
try:
|
||
if os.name == "posix":
|
||
os.killpg(process.pid, sig)
|
||
elif sig == getattr(signal, "SIGKILL", None):
|
||
process.kill()
|
||
else:
|
||
process.terminate()
|
||
except ProcessLookupError:
|
||
pass
|
||
|
||
@classmethod
|
||
async def _cleanup_process(
|
||
cls,
|
||
process: Any,
|
||
wait_task: asyncio.Task,
|
||
) -> None:
|
||
"""先温和终止，失败后强杀，避免超时 shell 遗留子进程。"""
|
||
if wait_task.done():
|
||
return
|
||
|
||
cls._terminate_process(process, signal.SIGTERM)
|
||
try:
|
||
await asyncio.wait_for(
|
||
asyncio.shield(wait_task), timeout=KILL_GRACE_SECONDS
|
||
)
|
||
return
|
||
except asyncio.TimeoutError:
|
||
pass
|
||
|
||
kill_signal = getattr(signal, "SIGKILL", signal.SIGTERM)
|
||
cls._terminate_process(process, kill_signal)
|
||
try:
|
||
await asyncio.wait_for(
|
||
asyncio.shield(wait_task), timeout=KILL_GRACE_SECONDS
|
||
)
|
||
except asyncio.TimeoutError:
|
||
logger.warning(f"命令进程强制清理超时: pid={process.pid}")
|
||
|
||
@staticmethod
|
||
async def _finish_reader_tasks(reader_tasks: list[asyncio.Task]) -> None:
|
||
"""等待一次性命令输出读取任务退出，异常只记录不影响工具返回。"""
|
||
if not reader_tasks:
|
||
return
|
||
done, pending = await asyncio.wait(reader_tasks, timeout=1)
|
||
for task in pending:
|
||
task.cancel()
|
||
results = await asyncio.gather(*done, *pending, return_exceptions=True)
|
||
for result in results:
|
||
if isinstance(result, Exception) and not isinstance(
|
||
result, asyncio.CancelledError
|
||
):
|
||
logger.debug(f"命令输出读取任务异常: {result}")
|
||
|
||
@staticmethod
|
||
def _format_run_result(
|
||
*,
|
||
exit_code: Optional[int],
|
||
output: _CommandOutput,
|
||
timeout: int,
|
||
timed_out: bool,
|
||
timeout_note: Optional[str],
|
||
cwd: Optional[str] = None,
|
||
shell: Optional[str] = None,
|
||
login: bool = False,
|
||
scope_cancelled: bool = False,
|
||
) -> str:
|
||
"""分开返回机器可判定的执行状态与有界输出，不能靠完成提示推断成功。"""
|
||
if scope_cancelled:
|
||
result = "命令因任务作用域关闭而取消，未确认业务动作是否完成"
|
||
elif exit_code is None:
|
||
result = "无法确认命令进程已结束，请先核对实际状态"
|
||
elif timed_out:
|
||
result = f"命令执行超时 (限制: {timeout}秒，已终止进程)"
|
||
else:
|
||
result = f"命令执行完成 (退出码: {exit_code})"
|
||
|
||
if timeout_note:
|
||
result += f"\n\n提示:\n{timeout_note}"
|
||
if output.temp_file_path:
|
||
file_note = "截至返回时已捕获的输出" if exit_code is None else ("截至命令终止前的完整输出" if timed_out else "完整输出")
|
||
result += (
|
||
"\n\n提示:\n"
|
||
f"命令输出超过 {MAX_OUTPUT_PREVIEW_BYTES // 1024}KB，"
|
||
f"仅返回前后各 {MAX_OUTPUT_HEAD_BYTES // 1024}KB 预览。\n"
|
||
f"{file_note}已写入临时文件: {output.temp_file_path}\n"
|
||
"如需完整内容，请继续读取该文件。"
|
||
)
|
||
if output.preview_truncated:
|
||
result += "\n\n...(仅展示前后各 16KB 内容)"
|
||
if not output.combined_preview:
|
||
result += "\n\n(无输出内容)"
|
||
succeeded = exit_code == 0 and not timed_out and not scope_cancelled
|
||
outcome = "failed" if scope_cancelled else (
|
||
"unknown" if exit_code is None else ("succeeded" if succeeded else "failed")
|
||
)
|
||
return ExecuteCommandTool._dump({
|
||
"action": "run", "success": succeeded, "execution_outcome": outcome,
|
||
"status": "cancelled" if scope_cancelled else (
|
||
"unknown" if exit_code is None else ("timed_out" if timed_out else "exited")
|
||
),
|
||
"exit_code": exit_code, "timed_out": timed_out, "timeout": timeout,
|
||
"cwd": cwd, "shell": shell, "login": login, "stdin_closed": True,
|
||
"output_truncated": output.preview_truncated, "output_file": output.temp_file_path,
|
||
"output": output.combined_preview, "message": result,
|
||
})
|
||
|
||
async def _run_once(
|
||
self,
|
||
*,
|
||
command: str,
|
||
timeout: Optional[int],
|
||
cwd: Optional[str] = None,
|
||
env: Optional[dict[str, Any]] = None,
|
||
shell: Optional[str] = None,
|
||
login: Optional[bool] = None,
|
||
confirm_dangerous: bool = False,
|
||
) -> str:
|
||
"""一次性执行命令并返回结构化终态；退出路径都必须释放读取任务和归档句柄。"""
|
||
self._validate_command(command, confirmed=confirm_dangerous)
|
||
scope = require_terminal_scope()
|
||
scope.begin_run()
|
||
try:
|
||
return await self._run_once_with_scope(
|
||
scope=scope, command=command, timeout=timeout, cwd=cwd, env=env,
|
||
shell=shell, login=login, confirm_dangerous=confirm_dangerous,
|
||
)
|
||
finally:
|
||
scope.finish_run()
|
||
|
||
@staticmethod
|
||
async def _acquire_command_slot(scope: TerminalScope) -> None:
|
||
"""并发槽等待期间响应作用域封口，禁止取消后迟到启动一次性进程。"""
|
||
acquire_task = asyncio.create_task(_command_semaphore.acquire())
|
||
closed_task = asyncio.create_task(scope.changed.wait())
|
||
acquired = False
|
||
released = False
|
||
try:
|
||
done, _ = await asyncio.wait(
|
||
{acquire_task, closed_task}, return_when=asyncio.FIRST_COMPLETED,
|
||
)
|
||
if closed_task in done and acquire_task not in done:
|
||
acquire_task.cancel()
|
||
await asyncio.gather(acquire_task, return_exceptions=True)
|
||
raise TerminalAccessError()
|
||
await acquire_task
|
||
acquired = True
|
||
if scope.closed:
|
||
_command_semaphore.release()
|
||
released = True
|
||
acquired = False
|
||
raise TerminalAccessError()
|
||
finally:
|
||
if not acquire_task.done():
|
||
acquire_task.cancel()
|
||
await asyncio.gather(acquire_task, return_exceptions=True)
|
||
if acquire_task.done() and not acquire_task.cancelled() and not acquired and not released:
|
||
_command_semaphore.release()
|
||
if not closed_task.done():
|
||
closed_task.cancel()
|
||
await asyncio.gather(closed_task, return_exceptions=True)
|
||
|
||
async def _run_once_with_scope(
|
||
self,
|
||
*,
|
||
scope: TerminalScope,
|
||
command: str,
|
||
timeout: Optional[int],
|
||
cwd: Optional[str] = None,
|
||
env: Optional[dict[str, Any]] = None,
|
||
shell: Optional[str] = None,
|
||
login: Optional[bool] = None,
|
||
confirm_dangerous: bool = False,
|
||
) -> str:
|
||
"""在已登记作用域下运行一次命令，并对封口和进程收尾保持可观察。"""
|
||
normalized_timeout, timeout_note = self._normalize_timeout(timeout)
|
||
normalized_cwd = resolve_agent_cwd(cwd, root_path=get_runtime_setting("ROOT_PATH"))
|
||
normalized_env = build_agent_subprocess_env(env)
|
||
shell_policy = resolve_agent_shell(executable=shell, login=login, environment=normalized_env, cwd=normalized_cwd)
|
||
|
||
await self._acquire_command_slot(scope)
|
||
try:
|
||
require_terminal_scope()
|
||
process = await asyncio.create_subprocess_exec(
|
||
*shell_policy.build_argv(command), cwd=normalized_cwd, env=normalized_env,
|
||
**self._subprocess_kwargs(),
|
||
)
|
||
output = _CommandOutput(preview_limit_bytes=MAX_OUTPUT_PREVIEW_BYTES)
|
||
wait_task = asyncio.create_task(process.wait())
|
||
reader_tasks = [
|
||
asyncio.create_task(self._read_stream(process.stdout, "stdout", output)),
|
||
asyncio.create_task(self._read_stream(process.stderr, "stderr", output)),
|
||
]
|
||
|
||
timed_out = False
|
||
scope_cancelled = False
|
||
scope_task = asyncio.create_task(scope.changed.wait())
|
||
try:
|
||
done, _ = await asyncio.wait(
|
||
{wait_task, scope_task}, timeout=normalized_timeout,
|
||
return_when=asyncio.FIRST_COMPLETED,
|
||
)
|
||
scope_cancelled = scope_task in done
|
||
if wait_task not in done:
|
||
timed_out = not scope_cancelled
|
||
await self._cleanup_process(process, wait_task)
|
||
except asyncio.CancelledError:
|
||
await self._cleanup_process(process, wait_task)
|
||
raise
|
||
|
||
finally:
|
||
if not scope_task.done():
|
||
scope_task.cancel()
|
||
await asyncio.gather(scope_task, return_exceptions=True)
|
||
try:
|
||
await self._finish_reader_tasks(reader_tasks)
|
||
finally:
|
||
output.close()
|
||
|
||
return self._format_run_result(
|
||
exit_code=process.returncode,
|
||
output=output,
|
||
timeout=normalized_timeout,
|
||
timed_out=timed_out,
|
||
scope_cancelled=scope_cancelled,
|
||
timeout_note=timeout_note,
|
||
cwd=normalized_cwd, shell=shell_policy.executable, login=shell_policy.login,
|
||
)
|
||
finally:
|
||
_command_semaphore.release()
|
||
|
||
async def run(
|
||
self,
|
||
action: Optional[str] = "start",
|
||
command: Optional[str] = None,
|
||
session_id: Optional[str] = None,
|
||
input_text: Optional[str] = None,
|
||
close_stdin: Optional[bool] = False,
|
||
signal_name: Optional[str] = "TERM",
|
||
cwd: Optional[str] = None,
|
||
env: Optional[dict[str, Any]] = None,
|
||
shell: Optional[str] = None,
|
||
login: Optional[bool] = None,
|
||
use_pty: Optional[bool] = True,
|
||
since_seq: Optional[int] = None,
|
||
since_offset: Optional[int] = None,
|
||
max_bytes: Optional[int] = TERMINAL_DEFAULT_READ_BYTES,
|
||
timeout_ms: Optional[int] = TERMINAL_WAIT_DEFAULT_MS,
|
||
yield_time_ms: Optional[int] = TERMINAL_YIELD_DEFAULT_MS,
|
||
timeout: Optional[int] = 60,
|
||
confirm_dangerous: Optional[bool] = False,
|
||
**kwargs,
|
||
) -> str:
|
||
"""按同一启动策略执行命令，区分写入/EOF、一次中断与会话终止。"""
|
||
normalized_action = (action or "start").strip().lower()
|
||
logger.info(
|
||
f"执行工具: {self.name}, action={normalized_action}, "
|
||
f"command={command}, session_id={session_id}"
|
||
)
|
||
|
||
try:
|
||
require_terminal_scope()
|
||
terminal_session_manager = get_terminal_session_manager()
|
||
output_budget = DEFAULT_TOOL_RESULT_MAX_CHARS
|
||
if self.result_max_chars and self.result_max_chars > 0:
|
||
output_budget = min(self.result_max_chars, output_budget)
|
||
if normalized_action == "start":
|
||
start_command = self._require_command(command)
|
||
self._validate_command(
|
||
start_command,
|
||
confirmed=bool(confirm_dangerous),
|
||
)
|
||
payload = await terminal_session_manager.start(
|
||
command=start_command,
|
||
cwd=cwd,
|
||
env=env,
|
||
shell=shell,
|
||
login=login,
|
||
use_pty=use_pty,
|
||
confirm_dangerous=bool(confirm_dangerous),
|
||
yield_time_ms=yield_time_ms,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "read":
|
||
payload = await terminal_session_manager.read(
|
||
session_id=self._require_session_id(session_id),
|
||
since_seq=since_seq,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "wait":
|
||
payload = await terminal_session_manager.wait(
|
||
session_id=self._require_session_id(session_id),
|
||
timeout_ms=timeout_ms,
|
||
since_seq=since_seq,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "write":
|
||
payload = await terminal_session_manager.write(
|
||
session_id=self._require_session_id(session_id),
|
||
input_text=input_text or "",
|
||
close_stdin=False if close_stdin is None else close_stdin,
|
||
since_seq=since_seq,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "interrupt":
|
||
payload = await terminal_session_manager.interrupt(
|
||
session_id=self._require_session_id(session_id),
|
||
since_seq=since_seq,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "kill":
|
||
payload = await terminal_session_manager.kill(
|
||
session_id=self._require_session_id(session_id),
|
||
sig=signal_name,
|
||
since_seq=since_seq,
|
||
since_offset=since_offset,
|
||
max_bytes=max_bytes,
|
||
max_output_chars=output_budget,
|
||
)
|
||
return self._dump(payload)
|
||
|
||
if normalized_action == "run":
|
||
return await self._run_once(
|
||
command=self._require_command(command),
|
||
timeout=timeout,
|
||
cwd=cwd,
|
||
env=env,
|
||
shell=shell,
|
||
login=login,
|
||
confirm_dangerous=bool(confirm_dangerous),
|
||
)
|
||
|
||
raise ValueError(f"不支持的 action: {action}")
|
||
except TerminalAccessError as err:
|
||
return self._dump({
|
||
"error": str(err), "status": "error", "action": normalized_action,
|
||
"success": False, "execution_outcome": "failed", "code": "terminal_access_denied",
|
||
})
|
||
except TerminalOutputError as err:
|
||
return self._dump({
|
||
"error": str(err), "status": "error", "action": normalized_action,
|
||
"success": False, "execution_outcome": "failed",
|
||
"code": err.code, "minimum_read_bytes": err.minimum_read_bytes,
|
||
})
|
||
except Exception as err:
|
||
logger.error(f"执行命令 action 失败: {err}", exc_info=True)
|
||
return self._dump({"error": str(err), "status": "error", "action": normalized_action,
|
||
"success": False, "execution_outcome": "failed"})
|