Clawith/backend/app/services/sandbox/api/codesandbox_backend.py

159 lines
5.4 KiB
Python

"""CodeSandbox API-based sandbox backend."""
import time
import httpx
from app.services.sandbox.base import BaseSandboxBackend, ExecutionResult, SandboxCapabilities
from app.services.sandbox.config import SandboxConfig
from loguru import logger
# CodeSandbox language mapping
_CODESANDBOX_LANGUAGES = {
"python": "python",
"javascript": "javascript",
"node": "javascript",
"typescript": "typescript",
}
class CodeSandboxBackend(BaseSandboxBackend):
"""CodeSandbox API-based sandbox backend.
CodeSandbox (https://codesandbox.io/) provides cloud-based development
and execution environments via their API.
"""
name = "codesandbox"
def __init__(self, config: SandboxConfig):
self.config = config
self.api_url = "https://codesandbox.io/api/v1/sandboxes/exec"
if not config.api_key:
raise ValueError(
"CodeSandbox API key is required. "
"Set SANDBOX_API_KEY environment variable."
)
def get_capabilities(self) -> SandboxCapabilities:
return SandboxCapabilities(
supported_languages=["python", "javascript", "node", "typescript"],
max_timeout=self.config.max_timeout,
max_memory_mb=512,
network_available=True,
filesystem_available=True,
)
async def health_check(self) -> bool:
"""Check if CodeSandbox API is available."""
try:
async with httpx.AsyncClient() as client:
response = await client.get(
"https://codesandbox.io/api/v1/sandboxes",
headers={"Authorization": f"Bearer {self.config.api_key}"},
timeout=5.0
)
return response.status_code in (200, 401) # 401 means auth works but no sandboxes
except Exception:
return False
async def execute(
self,
code: str,
language: str,
timeout: int = 30,
work_dir: str | None = None,
**kwargs
) -> ExecutionResult:
"""Execute code using CodeSandbox API."""
start_time = time.time()
# Map language
sandbox_language = _CODESANDBOX_LANGUAGES.get(language.lower())
if sandbox_language is None:
return ExecutionResult(
success=False,
stdout="",
stderr="",
exit_code=1,
duration_ms=int((time.time() - start_time) * 1000),
error=f"Unsupported language: {language}. Supported: {', '.join(_CODESANDBOX_LANGUAGES.keys())}"
)
try:
async with httpx.AsyncClient() as client:
# Prepare the sandbox specification
# CodeSandbox uses a simple execution model
files = {
f"index.{'py' if sandbox_language == 'python' else 'js'}": {
"content": code
}
}
response = await client.post(
self.api_url,
json={
"files": files,
"language": sandbox_language,
},
headers={
"Authorization": f"Bearer {self.config.api_key}",
"Content-Type": "application/json",
},
timeout=float(timeout + 5) # Add buffer for API call
)
duration_ms = int((time.time() - start_time) * 1000)
if response.status_code != 200:
return ExecutionResult(
success=False,
stdout="",
stderr="",
exit_code=1,
duration_ms=duration_ms,
error=f"CodeSandbox API error: {response.status_code}"
)
result = response.json()
# Extract output
stdout = result.get("output", "") or ""
stderr = result.get("errors", "") or ""
exit_code = result.get("exitCode", 0)
# Truncate output
stdout = stdout[:10000]
stderr = stderr[:5000]
return ExecutionResult(
success=exit_code == 0,
stdout=stdout,
stderr=stderr,
exit_code=exit_code,
duration_ms=duration_ms,
error=None if exit_code == 0 else f"Exit code: {exit_code}"
)
except httpx.TimeoutException:
duration_ms = int((time.time() - start_time) * 1000)
return ExecutionResult(
success=False,
stdout="",
stderr="",
exit_code=124,
duration_ms=duration_ms,
error=f"Code execution timed out after {timeout}s"
)
except Exception as e:
duration_ms = int((time.time() - start_time) * 1000)
logger.exception(f"[CodeSandbox] Execution error")
return ExecutionResult(
success=False,
stdout="",
stderr="",
exit_code=1,
duration_ms=duration_ms,
error=f"CodeSandbox execution error: {str(e)[:200]}"
)