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from enum import Enum
from typing import Literal
from e2b_code_interpreter import Sandbox
from pydantic import SecretStr
from backend.data.block import Block, BlockCategory, BlockOutput, BlockSchema
from backend.data.model import (
APIKeyCredentials,
CredentialsField,
CredentialsMetaInput,
SchemaField,
)
from backend.integrations.providers import ProviderName
TEST_CREDENTIALS = APIKeyCredentials(
id="01234567-89ab-cdef-0123-456789abcdef",
provider="e2b",
api_key=SecretStr("mock-e2b-api-key"),
title="Mock E2B API key",
expires_at=None,
)
TEST_CREDENTIALS_INPUT = {
"provider": TEST_CREDENTIALS.provider,
"id": TEST_CREDENTIALS.id,
"type": TEST_CREDENTIALS.type,
"title": TEST_CREDENTIALS.type,
}
class ProgrammingLanguage(Enum):
PYTHON = "python"
JAVASCRIPT = "js"
BASH = "bash"
R = "r"
JAVA = "java"
class CodeExecutionBlock(Block):
# TODO : Add support to upload and download files
# Currently, You can customized the CPU and Memory, only by creating a pre customized sandbox template
class Input(BlockSchema):
credentials: CredentialsMetaInput[
Literal[ProviderName.E2B], Literal["api_key"]
] = CredentialsField(
description="Enter your api key for the E2B Sandbox. You can get it in here - https://e2b.dev/docs",
)
# Todo : Option to run commond in background
setup_commands: list[str] = SchemaField(
description=(
"Shell commands to set up the sandbox before running the code. "
"You can use `curl` or `git` to install your desired Debian based "
"package manager. `pip` and `npm` are pre-installed.\n\n"
"These commands are executed with `sh`, in the foreground."
),
placeholder="pip install cowsay",
default=[],
advanced=False,
)
code: str = SchemaField(
description="Code to execute in the sandbox",
placeholder="print('Hello, World!')",
default="",
advanced=False,
)
language: ProgrammingLanguage = SchemaField(
description="Programming language to execute",
default=ProgrammingLanguage.PYTHON,
advanced=False,
)
timeout: int = SchemaField(
description="Execution timeout in seconds", default=300
)
template_id: str = SchemaField(
description=(
"You can use an E2B sandbox template by entering its ID here. "
"Check out the E2B docs for more details: "
"[E2B - Sandbox template](https://e2b.dev/docs/sandbox-template)"
),
default="",
advanced=True,
)
class Output(BlockSchema):
response: str = SchemaField(description="Response from code execution")
stdout_logs: str = SchemaField(
description="Standard output logs from execution"
)
stderr_logs: str = SchemaField(description="Standard error logs from execution")
error: str = SchemaField(description="Error message if execution failed")
def __init__(self):
super().__init__(
id="0b02b072-abe7-11ef-8372-fb5d162dd712",
description="Executes code in an isolated sandbox environment with internet access.",
categories={BlockCategory.DEVELOPER_TOOLS},
input_schema=CodeExecutionBlock.Input,
output_schema=CodeExecutionBlock.Output,
test_credentials=TEST_CREDENTIALS,
test_input={
"credentials": TEST_CREDENTIALS_INPUT,
"code": "print('Hello World')",
"language": ProgrammingLanguage.PYTHON.value,
"setup_commands": [],
"timeout": 300,
"template_id": "",
},
test_output=[
("response", "Hello World"),
("stdout_logs", "Hello World\n"),
],
test_mock={
"execute_code": lambda code, language, setup_commands, timeout, api_key, template_id: (
"Hello World",
"Hello World\n",
"",
),
},
)
def execute_code(
self,
code: str,
language: ProgrammingLanguage,
setup_commands: list[str],
timeout: int,
api_key: str,
template_id: str,
):
try:
sandbox = None
if template_id:
sandbox = Sandbox(
template=template_id, api_key=api_key, timeout=timeout
)
else:
sandbox = Sandbox(api_key=api_key, timeout=timeout)
if not sandbox:
raise Exception("Sandbox not created")
# Running setup commands
for cmd in setup_commands:
sandbox.commands.run(cmd)
# Executing the code
execution = sandbox.run_code(
code,
language=language.value,
on_error=lambda e: sandbox.kill(), # Kill the sandbox if there is an error
)
if execution.error:
raise Exception(execution.error)
response = execution.text
stdout_logs = "".join(execution.logs.stdout)
stderr_logs = "".join(execution.logs.stderr)
return response, stdout_logs, stderr_logs
except Exception as e:
raise e
def run(
self, input_data: Input, *, credentials: APIKeyCredentials, **kwargs
) -> BlockOutput:
try:
response, stdout_logs, stderr_logs = self.execute_code(
input_data.code,
input_data.language,
input_data.setup_commands,
input_data.timeout,
credentials.api_key.get_secret_value(),
input_data.template_id,
)
if response:
yield "response", response
if stdout_logs:
yield "stdout_logs", stdout_logs
if stderr_logs:
yield "stderr_logs", stderr_logs
except Exception as e:
yield "error", str(e)