1 files changed, 45 insertions, 0 deletions
diff --git a/util/util_http.py b/util/util_http.py
new file mode 100644
index 0000000..853b351
--- /dev/null
+++ b/util/util_http.py
@@ -0,0 +1,45 @@
+from dns.message import make_query, from_wire
+import ssl
+
+
+def make_ssl_context(check_cert=False):
+    ssl_ctx = ssl.create_default_context()
+    ssl_ctx.check_hostname = False
+    if check_cert:
+        ssl_ctx.verify_mode = ssl.CERT_REQUIRED
+    else:
+        # ssl_ctx.verify_mode = ssl.CERT_NONE
+        ssl_ctx.verify_mode = ssl.CERT_OPTIONAL
+    # ssl_ctx.minimum_version = ssl.TLSVersion.TLSv1_1
+    return ssl_ctx
+
+
+def build_dns_query(qname="example.com", rtype="A"):
+    dns_query = make_query(
+        qname=qname,
+        rdtype=rtype,
+        want_dnssec=False,
+    )
+    return dns_query
+
+
+def get_domain_from_cert(cert):
+    cert_info_domain_related = []
+
+    if not cert:
+        return cert_info_domain_related
+
+    for key, value in cert.items():
+        if key == "subject":
+            for (sub_key, sub_value), in value:
+                if sub_key == "commonName":
+                    # print(sub_value)
+                    cert_info_domain_related.append(sub_value)
+        if key == "subjectAltName":
+            for (sub_key, sub_value) in value:
+                cert_info_domain_related.append(sub_value)
+    return list(set(cert_info_domain_related))
+
+# def build_dns_query_wireformat(qname="example.com", rtype="A"):
+#     dns_query = build_dns_query()
+#     return dns_query.to_wire()