Initial Checkin

crl_debug.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+# /// script
+# requires-python = ">=3.10"
+# dependencies = ["requests", "cryptography"]
+# ///
+"""Quick CRL parse debug test."""
+import requests, traceback
+from cryptography import x509
+
+urls = [
+    "http://pki.imy.se/IMY-RootCA01/CRL/IMY-RootCA01.crl",
+    "http://pki.imy.se/IMY-IssuingCA02/CRL/IMY-IssuingCA02.crl",
+    "http://pki.imy.se/CDP/IMYRootCa01.crl",
+    "http://pki.imy.se/CDP/IMY%20Sub%20CA+.crl",
+]
+
+session = requests.Session()
+session.verify = False
+session.headers.update({
+    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)',
+    'Accept-Encoding': 'identity',
+})
+requests.packages.urllib3.disable_warnings()
+
+for url in urls:
+    print(f"\n{'='*70}")
+    print(f"URL: {url}")
+    try:
+        resp = session.get(url, timeout=30)
+        data = resp.content
+        print(f"Size: {len(data)} bytes | Status: {resp.status_code}")
+        print(f"Content-Type: {resp.headers.get('content-type')}")
+        print(f"First 20 bytes hex: {data[:20].hex(' ')}")
+    except Exception as e:
+        print(f"Download failed: {e}")
+        continue
+
+    print(f"\nTrying DER parse...")
+    try:
+        crl = x509.load_der_x509_crl(data)
+        print(f"  ✔ SUCCESS! Issuer: {crl.issuer}")
+    except Exception as e:
+        print(f"  ✘ FAILED:")
+        traceback.print_exc()
+
+    print(f"\nTrying PEM parse...")
+    try:
+        crl = x509.load_pem_x509_crl(data)
+        print(f"  ✔ SUCCESS! Issuer: {crl.issuer}")
+    except Exception as e:
+        print(f"  ✘ FAILED:")
+        traceback.print_exc()