File size: 8,337 Bytes
38b4eff | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 | # tools/code_sandbox.py
#
# Safe code execution sandbox
# - Timeout protection
# - Output capture
# - Python and JavaScript support
import subprocess
import tempfile
import os
import json
from typing import Dict, Any, Optional
from pathlib import Path
class CodeSandbox:
"""Execute generated code safely with timeout and isolation."""
def __init__(self, timeout: int = 30, max_output: int = 10000):
self.timeout = timeout
self.max_output = max_output
def run_python(self, code: str, timeout: Optional[int] = None) -> Dict[str, Any]:
"""
Execute Python code in a sandboxed environment.
Returns:
{
"success": bool,
"output": str,
"error": str,
"exit_code": int,
"execution_time": float
}
"""
import time
start = time.time()
timeout = timeout or self.timeout
# Write code to temp file
with tempfile.NamedTemporaryFile(
mode='w',
suffix='.py',
delete=False,
encoding='utf-8'
) as f:
f.write(code)
temp_path = f.name
try:
result = subprocess.run(
['python3', temp_path],
capture_output=True,
text=True,
timeout=timeout,
cwd=tempfile.gettempdir(),
# Security: limit resources
env={
'PYTHONDONTWRITEBYTECODE': '1',
'PYTHONUNBUFFERED': '1',
}
)
output = result.stdout[:self.max_output]
error = result.stderr[:self.max_output]
return {
"success": result.returncode == 0,
"output": output,
"error": error if result.returncode != 0 else "",
"exit_code": result.returncode,
"execution_time": time.time() - start
}
except subprocess.TimeoutExpired:
return {
"success": False,
"output": "",
"error": f"Execution timed out after {timeout}s",
"exit_code": -1,
"execution_time": timeout
}
except Exception as e:
return {
"success": False,
"output": "",
"error": str(e),
"exit_code": -1,
"execution_time": time.time() - start
}
finally:
# Cleanup temp file
try:
os.unlink(temp_path)
except:
pass
def run_javascript(self, code: str, timeout: Optional[int] = None) -> Dict[str, Any]:
"""
Execute JavaScript code using Node.js.
Returns:
{
"success": bool,
"output": str,
"error": str,
"exit_code": int,
"execution_time": float
}
"""
import time
start = time.time()
timeout = timeout or self.timeout
# Check if node is available
try:
subprocess.run(['node', '--version'], capture_output=True, check=True)
except (subprocess.CalledProcessError, FileNotFoundError):
return {
"success": False,
"output": "",
"error": "Node.js is not installed. Install with: apt install nodejs",
"exit_code": -1,
"execution_time": 0
}
# Write code to temp file
with tempfile.NamedTemporaryFile(
mode='w',
suffix='.js',
delete=False,
encoding='utf-8'
) as f:
f.write(code)
temp_path = f.name
try:
result = subprocess.run(
['node', temp_path],
capture_output=True,
text=True,
timeout=timeout,
cwd=tempfile.gettempdir()
)
output = result.stdout[:self.max_output]
error = result.stderr[:self.max_output]
return {
"success": result.returncode == 0,
"output": output,
"error": error if result.returncode != 0 else "",
"exit_code": result.returncode,
"execution_time": time.time() - start
}
except subprocess.TimeoutExpired:
return {
"success": False,
"output": "",
"error": f"Execution timed out after {timeout}s",
"exit_code": -1,
"execution_time": timeout
}
except Exception as e:
return {
"success": False,
"output": "",
"error": str(e),
"exit_code": -1,
"execution_time": time.time() - start
}
finally:
# Cleanup temp file
try:
os.unlink(temp_path)
except:
pass
def run_bash(self, command: str, timeout: Optional[int] = None) -> Dict[str, Any]:
"""
Execute a bash command.
Returns:
{
"success": bool,
"output": str,
"error": str,
"exit_code": int,
"execution_time": float
}
"""
import time
start = time.time()
timeout = timeout or self.timeout
try:
result = subprocess.run(
['bash', '-c', command],
capture_output=True,
text=True,
timeout=timeout,
cwd=tempfile.gettempdir()
)
output = result.stdout[:self.max_output]
error = result.stderr[:self.max_output]
return {
"success": result.returncode == 0,
"output": output,
"error": error if result.returncode != 0 else "",
"exit_code": result.returncode,
"execution_time": time.time() - start
}
except subprocess.TimeoutExpired:
return {
"success": False,
"output": "",
"error": f"Execution timed out after {timeout}s",
"exit_code": -1,
"execution_time": timeout
}
except Exception as e:
return {
"success": False,
"output": "",
"error": str(e),
"exit_code": -1,
"execution_time": time.time() - start
}
# Convenience function for direct execution
def execute(code: str, language: str = "python", timeout: int = 30) -> Dict[str, Any]:
"""Execute code in the specified language."""
sandbox = CodeSandbox(timeout=timeout)
if language.lower() in ["python", "py"]:
return sandbox.run_python(code, timeout)
elif language.lower() in ["javascript", "js", "node"]:
return sandbox.run_javascript(code, timeout)
elif language.lower() in ["bash", "shell", "sh"]:
return sandbox.run_bash(code, timeout)
else:
return {
"success": False,
"output": "",
"error": f"Unsupported language: {language}",
"exit_code": -1,
"execution_time": 0
}
if __name__ == "__main__":
# Test the sandbox
sandbox = CodeSandbox()
# Test Python
print("Testing Python execution...")
result = sandbox.run_python("print('Hello from Python!')")
print(f"Python: {result}")
# Test JavaScript
print("\nTesting JavaScript execution...")
result = sandbox.run_javascript("console.log('Hello from JavaScript!')")
print(f"JavaScript: {result}")
# Test timeout
print("\nTesting timeout...")
result = sandbox.run_python("import time; time.sleep(60)", timeout=2)
print(f"Timeout test: {result}")
|