migrate to coreos

website/ip.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+import time
+import urllib.request
+from ipaddress import ip_network
+from pathlib import Path
+from sendgrid import SendGridAPIClient
+from sendgrid.helpers.mail import Mail
+
+if __name__ == "__main__":
+    sg = SendGridAPIClient(Path("sendgrid.key").read_text())
+
+    old_ipv4, old_ipv6 = None, None
+    while True:
+        try:
+            ipv4 = urllib.request.urlopen("https://v4.ident.me").read().decode("utf8")
+            ipv6 = urllib.request.urlopen("https://v6.ident.me").read().decode("utf8")
+            ipv6 = str(ip_network(ipv6 + "/64", strict=False).network_address) # xfinity gives /64
+        except Exception as e:
+            print(e)
+            time.sleep(60)
+            continue
+
+        if ipv4 != old_ipv4 or ipv6 != old_ipv6:
+            msg = Mail(
+                from_email="mtran319@gmail.com",
+                to_emails="mtran319@gmail.com",
+                subject="pls update ip",
+                html_content=(
+                    f"<p>old ipv4: {old_ipv4}</p>"
+                    f"<p>old ipv6: {old_ipv6}</p>"
+                    f"<p>new ipv4: {ipv4}</p>"
+                    f"<p>new ipv6: {ipv6}</p>"
+            ))
+            try:
+                print(f"IP changed to {ipv4} and {ipv6}")
+                resp = sg.send(msg)
+            except Exception as e:
+                print(e)
+                sg = SendGridAPIClient(Path("sendgrid.key").read_text())
+                time.sleep(60)
+                continue
+
+        old_ipv4, old_ipv6 = ipv4, ipv6
+        time.sleep(3600)