File size: 3,276 Bytes
65f2935 | 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 | from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
import re, os, requests, asyncio, concurrent.futures
from dotenv import load_dotenv
from groq import Groq
load_dotenv()
app = FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
def parse_github_url(url):
m = re.match(r"https://github\.com/([^/]+)/([^/]+)/blob/[^/]+/(.+)", url.strip())
if m:
return m.group(1), m.group(2), m.group(3)
return None, None, None
def get_file_content(owner, repo, path):
token = os.getenv("GITHUB_TOKEN", "")
headers = {"Authorization": f"token {token}"} if (token and token != "your_github_personal_access_token_here") else {}
url = f"https://api.github.com/repos/{owner}/{repo}/contents/{path}"
r = requests.get(url, headers=headers, timeout=15)
if r.status_code != 200:
return None, f"GitHub API error: {r.status_code}"
import base64
data = r.json()
content = base64.b64decode(data["content"]).decode("utf-8", errors="replace")
return content, None
def run_scan(owner, repo, file_path):
code, err = get_file_content(owner, repo, file_path)
if err:
return {"error": err}
# Truncate large files
if len(code) > 8000:
code = code[:8000] + "\n... [truncated]"
client = Groq(api_key=os.getenv("GROQ_API_KEY", ""))
prompt = f"""You are a cybersecurity expert. Analyze this code for security vulnerabilities.
File: {file_path}
Repository: {owner}/{repo}
```
{code}
```
Provide a detailed security analysis in this exact markdown format:
# Security Analysis Report
## File Overview
- Repository: {owner}/{repo}
- File: {file_path}
- Language: [detected language]
- Lines analyzed: [count]
## Vulnerabilities Found
[For each vulnerability found:]
### [Vulnerability Name] — [CRITICAL/HIGH/MEDIUM/LOW]
- **Line**: [line number or range]
- **Code**: `[vulnerable snippet]`
- **Issue**: [clear explanation]
- **CVE Reference**: [relevant CVE ID if applicable]
## Remediation
[Specific fix for each vulnerability with corrected code]
## Risk Summary
- Critical: [n] | High: [n] | Medium: [n] | Low: [n]
- **Overall Risk**: [CRITICAL/HIGH/MEDIUM/LOW]
"""
response = client.chat.completions.create(
model="llama-3.3-70b-versatile",
messages=[{"role": "user", "content": prompt}],
temperature=0.1,
max_tokens=4096,
)
result = response.choices[0].message.content
return {"result": result}
class ScanRequest(BaseModel):
url: str
@app.post("/api/scan")
async def scan(req: ScanRequest):
owner, repo, file_path = parse_github_url(req.url)
if not owner or not repo or not file_path:
return {"error": "Invalid GitHub file URL. Must contain /blob/."}
loop = asyncio.get_event_loop()
with concurrent.futures.ThreadPoolExecutor() as pool:
result = await loop.run_in_executor(pool, run_scan, owner, repo, file_path)
return result
@app.get("/api/health")
def health():
return {"status": "ok", "groq_key_set": bool(os.getenv("GROQ_API_KEY"))}
@app.get("/")
def root():
return {"status": "Vulnerability Scanner API running"}
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