import urllib.request
import ssl
import re

ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE

url = "https://sn-nas.snarfnet.net/"
req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"})
resp = urllib.request.urlopen(req, context=ctx)
html = resp.read().decode('utf-8', errors='replace')
tags = re.findall(r'<(?:script|link)[^>]+(?:src|href)="([^"]+)"', html)

failed = []
print(f"Testing {len(tags)} resources on sn-nas.snarfnet.net...")
for t in tags:
    res_url = f"https://sn-nas.snarfnet.net/{t}"
    try:
        r = urllib.request.Request(res_url, headers={"User-Agent": "Mozilla/5.0"})
        with urllib.request.urlopen(r, context=ctx, timeout=5) as res:
            if res.status != 200:
                failed.append((res_url, res.status))
    except Exception as e:
        failed.append((res_url, str(e)))

print(f"Finished. Failures: {len(failed)}")
for f in failed:
    print(" ", f)