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import torch
from torch.nn.functional import softmax
from transformers import GPT2Tokenizer
import os
import requests
import tempfile
import gradio as gr
# Model loading and prediction function
def check_vulnerabilities(solidity_file_path, model_directory='models/', device='cuda'):
device = 'cuda' if torch.cuda.is_available() and device == 'cuda' else 'cpu'
tokenizer = GPT2Tokenizer.from_pretrained('gpt2')
tokenizer.pad_token = tokenizer.eos_token
with open(solidity_file_path, 'r', encoding='utf-8') as f:
test_code = f.read()
X = tokenizer([test_code], padding=True, truncation=True, return_tensors="pt")
dic_name = {
'reentrancy': 'Reentrancy Vulnerability',
'timestamp': 'Timestamp Dependency Vulnerability',
'delegatecall': 'Delegate Call Vulnerability',
'integeroverflow': 'Integer Overflow Vulnerability',
}
dic01 = {0: 'The vulnerability does not exist', 1: 'The vulnerability exists'}
results = {}
for model_name in os.listdir(model_directory):
vulnerability_name = dic_name[model_name.split('_')[0]]
cp_file = os.path.join(model_directory, model_name)
model = torch.load(cp_file, map_location=device)
X = X.to(device)
model.to(device)
model.eval()
pred = softmax(model(**X).logits, dim=1)[0]
results[vulnerability_name] = {
'result': dic01[int(pred.argmax(0))],
'confidence': pred.max().item()
}
return results
# Gradio interface function
def check_vulnerabilities_interface(solidity_file_url, file_id):
model_directory = 'models/'
device = 'cuda'
try:
response = requests.get(solidity_file_url)
response.raise_for_status()
with tempfile.NamedTemporaryFile(delete=False, suffix=f"_{file_id}.sol") as temp_file:
temp_file.write(response.content)
temp_file.flush()
results = check_vulnerabilities(temp_file.name, model_directory, device)
os.remove(temp_file.name)
return results
except requests.exceptions.RequestException as e:
return {'error': f'Error fetching file: {e}'}
except Exception as e:
return {'error': str(e)}
# Set up the Gradio interface
interface = gr.Interface(
fn=check_vulnerabilities_interface,
inputs=[
gr.components.Textbox(label="Solidity File URL", placeholder="Enter URL here...", lines=2),
gr.components.Textbox(label="File ID", placeholder="Enter file ID here...", lines=1)
],
outputs=gr.components.JSON(),
title="Solidity Vulnerability Checker",
description="Enter the URL of a Solidity file and a file ID to check for vulnerabilities."
)
# Run the interface
if __name__ == "__main__":
interface.launch(
share=True
)
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