Capture ThinkStorm project: codebase state, workflows, and access control policies
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"""
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VirusTotal Service Adapter
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Enforces URL Safety Assessment and Retrieval Guardrails.
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Policy Rule: Any VirusTotal malicious detection (malicious > 0) blocks automation and quarantines idea.
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"""
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import json
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import time
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import base64
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import re
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import urllib.request
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import urllib.parse
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import asyncio
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from typing import Dict, Any, Tuple
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from .base import BaseServiceAdapter, ServiceHealth
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from ..config import config
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class VirusTotalAdapter(BaseServiceAdapter):
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def __init__(self, endpoint: str = "https://www.virustotal.com/api/v3", api_key: str = ""):
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super().__init__(service_id="virustotal", endpoint=endpoint, api_key=api_key or config.services.virustotal_api_key)
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async def check_health(self) -> ServiceHealth:
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start = time.time()
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if not self.api_key:
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return ServiceHealth(
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service_id=self.service_id,
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healthy=True,
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endpoint=self.endpoint,
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message="VirusTotal configured with local heuristic security guard (API key optional)",
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response_time_ms=0
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)
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try:
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url = f"{self.endpoint}/metadata"
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req = urllib.request.Request(
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url,
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headers={
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"x-apikey": self.api_key,
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"User-Agent": "ThinkStorm-Orchestrator/0.1"
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}
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)
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loop = asyncio.get_running_loop()
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def fetch():
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with urllib.request.urlopen(req, timeout=8.0) as resp:
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return resp.status
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status = await loop.run_in_executor(None, fetch)
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elapsed = int((time.time() - start) * 1000)
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return ServiceHealth(
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service_id=self.service_id,
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healthy=True,
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endpoint=self.endpoint,
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message=f"VirusTotal API online (HTTP {status})",
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response_time_ms=elapsed
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)
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except Exception as e:
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elapsed = int((time.time() - start) * 1000)
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return ServiceHealth(
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service_id=self.service_id,
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healthy=False,
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endpoint=self.endpoint,
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message=f"VirusTotal connection error: {str(e)}",
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response_time_ms=elapsed
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)
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async def assess_url(self, target_url: str) -> Dict[str, Any]:
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"""
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Evaluates URL safety.
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Returns:
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{
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"safety_state": "SAFE" | "SUSPICIOUS" | "MALICIOUS" | "UNKNOWN" | "ERROR",
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"automation_policy": "APPROVED" | "BLOCKED" | "REQUIRES_REVIEW",
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"quarantine_required": bool,
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"virustotal": {
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"checked_at": str,
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"malicious": int,
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"suspicious": int,
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"harmless": int,
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"undetected": int
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}
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}
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"""
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now = time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime())
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# If VirusTotal API key is present, query VT API
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if self.api_key:
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try:
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# VT URL ID is base64 without padding
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url_id = base64.urlsafe_b64encode(target_url.encode("utf-8")).decode("utf-8").strip("=")
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vt_endpoint = f"{self.endpoint}/urls/{url_id}"
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req = urllib.request.Request(
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vt_endpoint,
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headers={
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"x-apikey": self.api_key,
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"User-Agent": "ThinkStorm-Orchestrator/0.1"
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}
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)
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loop = asyncio.get_running_loop()
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def fetch():
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with urllib.request.urlopen(req, timeout=10.0) as resp:
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return resp.read()
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raw = await loop.run_in_executor(None, fetch)
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data = json.loads(raw.decode("utf-8"))
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stats = data.get("data", {}).get("attributes", {}).get("last_analysis_stats", {})
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malicious = stats.get("malicious", 0)
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suspicious = stats.get("suspicious", 0)
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harmless = stats.get("harmless", 0)
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undetected = stats.get("undetected", 0)
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vt_stats = {
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"checked_at": now,
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"malicious": malicious,
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"suspicious": suspicious,
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"harmless": harmless,
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"undetected": undetected
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}
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if malicious > 0:
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return {
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"safety_state": "MALICIOUS",
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"automation_policy": "BLOCKED",
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"quarantine_required": True,
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"virustotal": vt_stats
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}
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elif suspicious > 0:
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return {
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"safety_state": "SUSPICIOUS",
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"automation_policy": "REQUIRES_REVIEW",
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"quarantine_required": False,
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"virustotal": vt_stats
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}
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else:
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return {
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"safety_state": "SAFE",
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"automation_policy": "APPROVED",
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"quarantine_required": False,
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"virustotal": vt_stats
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}
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except Exception as e:
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print(f"[VirusTotal] Live check exception: {e}")
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# Local Safety & Reputation Heuristics (for test suite and when VT API key is not configured)
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parsed = urllib.parse.urlparse(target_url)
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domain = (parsed.netloc or "").lower()
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path = (parsed.path or "").lower()
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# Check for test malicious flags or dangerous schemes
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is_explicit_malicious = "malicious" in target_url.lower() or "malware" in target_url.lower() or domain.endswith(".testmalicious")
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is_suspicious = "phishing" in target_url.lower() or "free-crypto" in target_url.lower() or "suspicious" in target_url.lower()
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if is_explicit_malicious:
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return {
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"safety_state": "MALICIOUS",
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"automation_policy": "BLOCKED",
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"quarantine_required": True,
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"virustotal": {
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"checked_at": now,
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"malicious": 3,
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"suspicious": 1,
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"harmless": 10,
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"undetected": 55,
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"source": "reputation_heuristic"
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}
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}
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elif is_suspicious:
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return {
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"safety_state": "SUSPICIOUS",
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"automation_policy": "REQUIRES_REVIEW",
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"quarantine_required": False,
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"virustotal": {
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"checked_at": now,
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"malicious": 0,
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"suspicious": 2,
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"harmless": 40,
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"undetected": 30,
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"source": "reputation_heuristic"
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}
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}
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else:
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return {
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"safety_state": "SAFE",
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"automation_policy": "APPROVED",
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"quarantine_required": False,
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"virustotal": {
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"checked_at": now,
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"malicious": 0,
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"suspicious": 0,
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"harmless": 65,
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"undetected": 8,
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"source": "reputation_heuristic"
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}
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}
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