Create diag_extra.py

bot/integrations/diag_extra.py

@@ -0,0 +1,14 @@
+# PATH: bot/integrations/diag_extra.py
+import socket
+from urllib.parse import urlparse
+
+def dns_check(url: str) -> str:
+    try:
+        host = urlparse(url).hostname
+        if not host:
+            return "bad_url"
+        infos = socket.getaddrinfo(host, 443, type=socket.SOCK_STREAM)
+        ips = sorted({i[4][0] for i in infos})
+        return "OK " + ", ".join(ips[:6])
+    except Exception as e:
+        return f"ERR:{type(e).__name__}:{e}"