initial commit

main.py

@@ -0,0 +1,61 @@
+# Imports
+import os
+from cloudflare import Cloudflare
+from dotenv import load_dotenv
+from requests import get
+
+# Function to retrieve public IPv4 address
+def get_public_ipv4():
+    ip_v4 = get('https://api.ipify.org').content.decode('utf8')
+    return ip_v4
+
+# Function to set the dynamic DNS record in Cloudflare
+def set_dyndns_record(client, new_public_ip):
+    response = client.dns.records.edit(
+        zone_id=zone_id,
+        dns_record_id=record_id,
+        name=record_name,
+        content=new_public_ip,
+        type="A"
+    )
+    return response
+
+# Load environment variables from .env file
+load_dotenv()
+
+# Retrieve required environment variables
+api_token = os.environ.get("CLOUDFLARE_API_TOKEN")
+if not api_token:
+    raise ValueError("Cloudflare API token is not set in environment variables.")
+
+zone_id = os.environ.get("CLOUDFLARE_ZONE_ID")
+record_name = os.environ.get("CLOUDFLARE_DNS_RECORD_NAME")
+record_id = os.environ.get("CLOUDFLARE_DNS_RECORD_ID")
+
+# Set the headers for Cloudflare API request
+headers = {
+    "Authorization": f"Bearer {api_token}",
+    "Content-Type": "application/json"
+}
+
+# Main execution
+if __name__ == "__main__":
+    # Initialize Cloudflare client with the API token and headers
+    client = Cloudflare(default_headers=headers)
+
+    # Get the current DNS record for dynamic DNS
+    dyndns_record = client.dns.records.get(
+        dns_record_id=record_id,
+        zone_id=zone_id
+    )
+
+    # Retrieve the current public IP address
+    public_ip = get_public_ipv4()
+
+    # Check if the current public IP matches the existing DNS record
+    if public_ip == dyndns_record.content:
+        # Exit if the IP addresses are the same
+        exit()
+    else:
+        # Update the DNS record with the new public IP
+        set_dyndns_record(client, public_ip)