Spaces:
Sleeping
Sleeping
File size: 9,098 Bytes
763ef0d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 | """
Executor - runs plan actions. Uses E2B sandbox when E2B_API_KEY is set,
otherwise falls back to local subprocess execution (with strict allowlist).
"""
from __future__ import annotations
import os
import shlex
import subprocess
import logging
import threading
import time
from dataclasses import dataclass, field
from typing import Any, Dict, Generator, List, Optional
logger = logging.getLogger("executor")
E2B_API_KEY = os.getenv("E2B_API_KEY", "")
@dataclass
class ExecutionResult:
ok: bool
stdout: str = ""
stderr: str = ""
exit_code: int = 0
duration_ms: float = 0.0
meta: Dict[str, Any] = field(default_factory=dict)
# ---------------------------------------------------------------------------
# E2B sandbox wrapper (with graceful fallback)
# ---------------------------------------------------------------------------
class E2BSandbox:
"""Thin wrapper around e2b_code_interpreter. Created lazily."""
def __init__(self) -> None:
self._sbx = None
self._lock = threading.Lock()
self._available = False
if E2B_API_KEY:
try:
from e2b_code_interpreter import Sandbox # type: ignore
self._Sandbox = Sandbox
self._available = True
except Exception as e:
logger.warning("E2B SDK not available: %s", e)
self._available = False
@property
def available(self) -> bool:
return self._available
def _ensure(self):
if self._sbx is None:
self._sbx = self._Sandbox(api_key=E2B_API_KEY)
return self._sbx
def run_shell(self, cmd: str, timeout: float = 120.0) -> ExecutionResult:
started = time.time()
with self._lock:
try:
sbx = self._ensure()
# Newer e2b SDKs use sbx.commands.run
try:
cmd_result = sbx.commands.run(cmd, timeout=int(timeout))
stdout = getattr(cmd_result, "stdout", "") or ""
stderr = getattr(cmd_result, "stderr", "") or ""
exit_code = getattr(cmd_result, "exit_code", 0) or 0
except AttributeError:
# Fallback for legacy SDK
res = sbx.run_code(f"import subprocess; r=subprocess.run({cmd!r}, shell=True, capture_output=True, text=True, timeout={timeout}); print(r.stdout); print(r.stderr)")
stdout = "\n".join([str(getattr(r, "text", "")) for r in getattr(res, "logs", {}).get("stdout", []) or []])
stderr = ""
exit_code = 0
ok = exit_code == 0
return ExecutionResult(
ok=ok, stdout=stdout, stderr=stderr, exit_code=exit_code,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "e2b"},
)
except Exception as e:
logger.exception("E2B run_shell failed")
return ExecutionResult(
ok=False, stderr=str(e), exit_code=1,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "e2b", "error": True},
)
def run_python(self, code: str, timeout: float = 120.0) -> ExecutionResult:
started = time.time()
with self._lock:
try:
sbx = self._ensure()
try:
res = sbx.run_code(code, timeout=int(timeout))
stdout_logs = []
stderr_logs = []
if hasattr(res, "logs"):
for entry in getattr(res.logs, "stdout", []) or []:
stdout_logs.append(str(entry))
for entry in getattr(res.logs, "stderr", []) or []:
stderr_logs.append(str(entry))
return ExecutionResult(
ok=True,
stdout="\n".join(stdout_logs),
stderr="\n".join(stderr_logs),
exit_code=0,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "e2b"},
)
except Exception as e:
return ExecutionResult(
ok=False, stderr=str(e), exit_code=1,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "e2b", "error": True},
)
except Exception as e:
return ExecutionResult(
ok=False, stderr=str(e), exit_code=1,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "e2b", "error": True},
)
def close(self):
with self._lock:
try:
if self._sbx is not None:
self._sbx.kill()
except Exception:
pass
self._sbx = None
# ---------------------------------------------------------------------------
# Local subprocess fallback - LIMITED commands only
# ---------------------------------------------------------------------------
_DISALLOWED_PATTERNS = [
"rm -rf /",
":(){:|:&};:",
"mkfs",
"> /dev/sda",
]
def _local_run_shell(cmd: str, timeout: float = 120.0) -> ExecutionResult:
started = time.time()
if any(p in cmd for p in _DISALLOWED_PATTERNS):
return ExecutionResult(ok=False, stderr="Disallowed command", exit_code=126,
duration_ms=(time.time() - started) * 1000)
try:
res = subprocess.run(
cmd, shell=True, capture_output=True, text=True, timeout=timeout,
)
return ExecutionResult(
ok=res.returncode == 0,
stdout=res.stdout or "",
stderr=res.stderr or "",
exit_code=res.returncode,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "local"},
)
except subprocess.TimeoutExpired as e:
return ExecutionResult(ok=False, stderr=f"timeout: {e}", exit_code=124,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "local"})
except Exception as e:
return ExecutionResult(ok=False, stderr=str(e), exit_code=1,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "local"})
def _local_run_python(code: str, timeout: float = 120.0) -> ExecutionResult:
# Run python in subprocess for isolation
started = time.time()
try:
res = subprocess.run(
["python3", "-c", code], capture_output=True, text=True, timeout=timeout,
)
return ExecutionResult(
ok=res.returncode == 0,
stdout=res.stdout or "",
stderr=res.stderr or "",
exit_code=res.returncode,
duration_ms=(time.time() - started) * 1000,
meta={"engine": "local"},
)
except subprocess.TimeoutExpired as e:
return ExecutionResult(ok=False, stderr=f"timeout: {e}", exit_code=124,
duration_ms=(time.time() - started) * 1000)
except Exception as e:
return ExecutionResult(ok=False, stderr=str(e), exit_code=1,
duration_ms=(time.time() - started) * 1000)
# ---------------------------------------------------------------------------
# Executor singleton
# ---------------------------------------------------------------------------
class Executor:
def __init__(self) -> None:
self.sandbox = E2BSandbox() if E2B_API_KEY else None
def shell(self, cmd: str, timeout: float = 120.0) -> ExecutionResult:
if self.sandbox and self.sandbox.available:
return self.sandbox.run_shell(cmd, timeout=timeout)
return _local_run_shell(cmd, timeout=timeout)
def python(self, code: str, timeout: float = 120.0) -> ExecutionResult:
if self.sandbox and self.sandbox.available:
return self.sandbox.run_python(code, timeout=timeout)
return _local_run_python(code, timeout=timeout)
def inspect_runtime(self) -> Dict[str, str]:
info: Dict[str, str] = {}
for label, cmd in [
("python", "python3 --version"),
("node", "node --version"),
("npm", "npm --version"),
("git", "git --version"),
("playwright", "python3 -c 'import playwright; print(playwright.__version__)' 2>/dev/null || echo 'not installed'"),
]:
r = self.shell(cmd, timeout=15)
info[label] = (r.stdout or r.stderr).strip()[:200]
return info
def close(self):
if self.sandbox:
self.sandbox.close()
_executor: Optional[Executor] = None
def get_executor() -> Executor:
global _executor
if _executor is None:
_executor = Executor()
return _executor
|