421 lines
15 KiB
Python
421 lines
15 KiB
Python
import threading
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from typing import Callable, Dict, List, Literal, Optional, Union, overload
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import e2b_connect
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import httpx
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from packaging.version import Version
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from e2b.api import make_logging_event_hooks
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from e2b.api.client_sync import get_envd_transport
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from e2b.connection_config import (
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ConnectionConfig,
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Username,
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KEEPALIVE_PING_HEADER,
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KEEPALIVE_PING_INTERVAL_SEC,
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)
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from e2b.envd.process import process_connect, process_pb2
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from e2b.envd.api import check_sandbox_health
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from e2b.envd.rpc import authentication_header, handle_rpc_exception_with_health
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from e2b.envd.versions import ENVD_COMMANDS_STDIN, ENVD_ENVD_CLOSE
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from e2b.exceptions import SandboxException
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from e2b.sandbox.commands.main import ProcessInfo
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from e2b.sandbox.commands.command_handle import CommandResult
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from e2b.sandbox_sync.commands.command_handle import CommandHandle
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class Commands:
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"""
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Module for executing commands in the sandbox.
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"""
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def __init__(
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self,
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envd_api_url: str,
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connection_config: ConnectionConfig,
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envd_version: Version,
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) -> None:
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self._envd_api_url = envd_api_url
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self._connection_config = connection_config
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self._envd_version = envd_version
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self._thread_local = threading.local()
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def _create_envd_api(self) -> httpx.Client:
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transport = get_envd_transport(self._connection_config)
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return httpx.Client(
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base_url=self._envd_api_url,
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transport=transport,
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headers=self._connection_config.sandbox_headers,
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event_hooks=make_logging_event_hooks(self._connection_config.logger),
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)
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def _create_rpc(self) -> process_connect.ProcessClient:
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transport = get_envd_transport(self._connection_config)
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return process_connect.ProcessClient(
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self._envd_api_url,
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# TODO: Fix and enable compression again — the headers compression is not solved for streaming.
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# compressor=e2b_connect.GzipCompressor,
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pool=transport.pool,
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json=True,
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headers=self._connection_config.sandbox_headers,
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logger=self._connection_config.logger,
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)
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@property
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def _envd_api(self) -> httpx.Client:
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envd_api = getattr(self._thread_local, "envd_api", None)
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if envd_api is None:
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envd_api = self._create_envd_api()
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self._thread_local.envd_api = envd_api
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return envd_api
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@property
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def _rpc(self) -> process_connect.ProcessClient:
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rpc = getattr(self._thread_local, "rpc", None)
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if rpc is None:
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rpc = self._create_rpc()
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self._thread_local.rpc = rpc
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return rpc
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def _check_health(self) -> Optional[bool]:
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return check_sandbox_health(self._envd_api)
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def list(
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self,
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request_timeout: Optional[float] = None,
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) -> List[ProcessInfo]:
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"""
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Lists all running commands and PTY sessions.
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:param request_timeout: Timeout for the request in **seconds**
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:return: List of running commands and PTY sessions
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"""
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try:
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res = self._rpc.list(
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process_pb2.ListRequest(),
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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return [
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ProcessInfo(
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pid=p.pid,
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tag=p.tag if p.HasField("tag") else None,
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cmd=p.config.cmd,
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args=list(p.config.args),
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envs=dict(p.config.envs),
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cwd=p.config.cwd if p.config.HasField("cwd") else None,
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)
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for p in res.processes
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]
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except Exception as e:
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raise handle_rpc_exception_with_health(e, self._check_health)
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def kill(
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self,
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pid: int,
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request_timeout: Optional[float] = None,
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) -> bool:
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"""
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Kill a running command specified by its process ID.
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It uses `SIGKILL` signal to kill the command.
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:param pid: Process ID of the command. You can get the list of processes using `sandbox.commands.list()`
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:param request_timeout: Timeout for the request in **seconds**
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:return: `True` if the command was killed, `False` if the command was not found
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"""
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try:
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self._rpc.send_signal(
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process_pb2.SendSignalRequest(
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process=process_pb2.ProcessSelector(pid=pid),
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signal=process_pb2.Signal.SIGNAL_SIGKILL,
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),
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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return True
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except Exception as e:
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if isinstance(e, e2b_connect.ConnectException):
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if e.status == e2b_connect.Code.not_found:
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return False
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raise handle_rpc_exception_with_health(e, self._check_health)
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def send_stdin(
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self,
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pid: int,
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data: Union[str, bytes],
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request_timeout: Optional[float] = None,
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):
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"""
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Send data to command stdin.
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:param pid Process ID of the command. You can get the list of processes using `sandbox.commands.list()`.
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:param data: Data to send to the command
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:param request_timeout: Timeout for the request in **seconds**
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"""
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try:
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self._rpc.send_input(
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process_pb2.SendInputRequest(
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process=process_pb2.ProcessSelector(pid=pid),
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input=process_pb2.ProcessInput(
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stdin=data.encode() if isinstance(data, str) else data,
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),
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),
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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except Exception as e:
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raise handle_rpc_exception_with_health(e, self._check_health)
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def close_stdin(
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self,
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pid: int,
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request_timeout: Optional[float] = None,
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) -> None:
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"""
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Close the command stdin.
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This signals EOF to the command. The command must have been started with `stdin=True`.
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:param pid Process ID of the command. You can get the list of processes using `sandbox.commands.list()`.
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:param request_timeout: Timeout for the request in **seconds**
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"""
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if self._envd_version < ENVD_ENVD_CLOSE:
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raise SandboxException(
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f"Sandbox envd version {self._envd_version} doesn't support closing stdin. "
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f"Please rebuild your template to pick up the latest sandbox version."
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)
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try:
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self._rpc.close_stdin(
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process_pb2.CloseStdinRequest(
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process=process_pb2.ProcessSelector(pid=pid),
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),
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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except Exception as e:
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raise handle_rpc_exception_with_health(e, self._check_health)
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@overload
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def run(
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self,
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cmd: str,
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background: Union[Literal[False], None] = None,
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envs: Optional[Dict[str, str]] = None,
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user: Optional[Username] = None,
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cwd: Optional[str] = None,
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on_stdout: Optional[Callable[[str], None]] = None,
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on_stderr: Optional[Callable[[str], None]] = None,
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stdin: Optional[bool] = None,
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timeout: Optional[float] = 60,
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request_timeout: Optional[float] = None,
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) -> CommandResult:
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"""
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Start a new command and wait until it finishes executing.
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:param cmd: Command to execute
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:param background: **`False` if the command should be executed in the foreground**, `True` if the command should be executed in the background
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:param envs: Environment variables used for the command
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:param user: User to run the command as
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:param cwd: Working directory to run the command
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:param on_stdout: Callback for command stdout output
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:param on_stderr: Callback for command stderr output
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:param stdin: If `True`, the command will have a stdin stream that you can send data to using `sandbox.commands.send_stdin()`
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:param timeout: Timeout for the command connection in **seconds**. Using `0` will not limit the command connection time
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:param request_timeout: Timeout for the request in **seconds**
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:return: `CommandResult` result of the command execution
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"""
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...
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@overload
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def run(
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self,
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cmd: str,
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background: Literal[True],
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envs: Optional[Dict[str, str]] = None,
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user: Optional[Username] = None,
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cwd: Optional[str] = None,
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on_stdout: None = None,
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on_stderr: None = None,
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stdin: Optional[bool] = None,
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timeout: Optional[float] = 60,
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request_timeout: Optional[float] = None,
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) -> CommandHandle:
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"""
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Start a new command and return a handle to interact with it.
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:param cmd: Command to execute
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:param background: `False` if the command should be executed in the foreground, **`True` if the command should be executed in the background**
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:param envs: Environment variables used for the command
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:param user: User to run the command as
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:param cwd: Working directory to run the command
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:param stdin: If `True`, the command will have a stdin stream that you can send data to using `sandbox.commands.send_stdin()`
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:param timeout: Timeout for the command connection in **seconds**. Using `0` will not limit the command connection time
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:param request_timeout: Timeout for the request in **seconds**
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:return: `CommandHandle` handle to interact with the running command
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"""
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...
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def run(
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self,
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cmd: str,
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background: Union[bool, None] = None,
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envs: Optional[Dict[str, str]] = None,
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user: Optional[Username] = None,
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cwd: Optional[str] = None,
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on_stdout: Optional[Callable[[str], None]] = None,
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on_stderr: Optional[Callable[[str], None]] = None,
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stdin: Optional[bool] = None,
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timeout: Optional[float] = 60,
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request_timeout: Optional[float] = None,
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):
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# Check version for stdin support
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if stdin is False and self._envd_version < ENVD_COMMANDS_STDIN:
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raise SandboxException(
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f"Sandbox envd version {self._envd_version} can't specify stdin, it's always turned on. "
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f"Please rebuild your template if you need this feature."
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)
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# Default to `False`
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stdin = stdin or False
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proc = self._start(
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cmd,
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envs,
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user,
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cwd,
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stdin,
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timeout,
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request_timeout,
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)
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return (
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proc
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if background
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else proc.wait(
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on_stdout=on_stdout,
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on_stderr=on_stderr,
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)
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)
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def _start(
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self,
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cmd: str,
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envs: Optional[Dict[str, str]],
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user: Optional[Username],
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cwd: Optional[str],
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stdin: bool,
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timeout: Optional[float],
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request_timeout: Optional[float],
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):
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events = self._rpc.start(
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process_pb2.StartRequest(
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process=process_pb2.ProcessConfig(
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cmd="/bin/bash",
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envs=envs,
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args=["-l", "-c", cmd],
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cwd=cwd,
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),
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stdin=stdin,
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),
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headers={
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**authentication_header(self._envd_version, user),
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KEEPALIVE_PING_HEADER: str(KEEPALIVE_PING_INTERVAL_SEC),
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},
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timeout=timeout,
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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try:
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start_event = events.__next__()
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if not start_event.HasField("event"):
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raise SandboxException(
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f"Failed to start process: expected start event, got {start_event}"
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)
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pid = start_event.event.start.pid
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return CommandHandle(
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pid=pid,
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handle_kill=lambda: self.kill(pid),
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events=events,
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handle_send_stdin=lambda data, request_timeout=None: self.send_stdin(
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pid, data, request_timeout
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),
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handle_close_stdin=lambda request_timeout=None: self.close_stdin(
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pid, request_timeout
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),
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check_health=self._check_health,
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)
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except Exception as e:
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try:
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events.close()
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except Exception:
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pass
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raise handle_rpc_exception_with_health(e, self._check_health)
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def connect(
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self,
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pid: int,
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timeout: Optional[float] = 60,
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request_timeout: Optional[float] = None,
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):
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"""
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Connects to a running command.
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You can use `CommandHandle.wait()` to wait for the command to finish and get execution results.
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:param pid: Process ID of the command to connect to. You can get the list of processes using `sandbox.commands.list()`
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:param timeout: Timeout for the connection in **seconds**. Using `0` will not limit the connection time
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:param request_timeout: Timeout for the request in **seconds**
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:return: `CommandHandle` handle to interact with the running command
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"""
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events = self._rpc.connect(
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process_pb2.ConnectRequest(
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process=process_pb2.ProcessSelector(pid=pid),
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),
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headers={
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KEEPALIVE_PING_HEADER: str(KEEPALIVE_PING_INTERVAL_SEC),
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},
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timeout=timeout,
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request_timeout=self._connection_config.get_request_timeout(
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request_timeout
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),
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)
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try:
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start_event = events.__next__()
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if not start_event.HasField("event"):
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raise SandboxException(
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f"Failed to connect to process: expected start event, got {start_event}"
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)
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pid = start_event.event.start.pid
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return CommandHandle(
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pid=pid,
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handle_kill=lambda: self.kill(pid),
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events=events,
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handle_send_stdin=lambda data, request_timeout=None: self.send_stdin(
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pid, data, request_timeout
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),
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handle_close_stdin=lambda request_timeout=None: self.close_stdin(
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pid, request_timeout
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),
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check_health=self._check_health,
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)
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except Exception as e:
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try:
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events.close()
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except Exception:
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pass
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raise handle_rpc_exception_with_health(e, self._check_health)
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