feat: add cloudflare module for dynamic dns updates

infra_cli/cloudflare.py

@@ -0,0 +1,73 @@
+import requests
+import sys
+
+class CloudflareManager:
+    def __init__(self, config):
+        self.token = config.get('cloudflare.token')
+        self.ddns_domains = config.get('cloudflare.ddns_domains', [])
+        self.api_url = "https://api.cloudflare.com/client/v4"
+        self.headers = {
+            "Authorization": f"Bearer {self.token}",
+            "Content-Type": "application/json"
+        }
+
+    def get_external_ip(self):
+        try:
+            return requests.get("https://checkip.amazonaws.com").text.strip()
+        except Exception as e:
+            print(f"Error fetching external IP: {e}")
+            return None
+
+    def get_zone_id(self, domain):
+        res = requests.get(f"{self.api_url}/zones?name={domain}", headers=self.headers)
+        data = res.json()
+        if data.get('success') and data['result']:
+            return data['result'][0]['id']
+        return None
+
+    def update_ddns(self, force=False):
+        current_ip = self.get_external_ip()
+        if not current_ip:
+            return "Failed to determine current external IP."
+
+        results = []
+        for domain in self.ddns_domains:
+            zone_id = self.get_zone_id(domain)
+            if not zone_id:
+                results.append(f"[{domain}] Zone not found.")
+                continue
+
+            # Find A record for the root domain
+            res = requests.get(f"{self.api_url}/zones/{zone_id}/dns_records?type=A&name={domain}", headers=self.headers)
+            records = res.json().get('result', [])
+            
+            if not records:
+                # Create if missing? For now, just report
+                results.append(f"[{domain}] No A record found to update.")
+                continue
+
+            record = records[0]
+            if record['content'] == current_ip and not force:
+                results.append(f"[{domain}] Already up to date ({current_ip}).")
+                continue
+
+            # Update record
+            update_data = {
+                "type": "A",
+                "name": domain,
+                "content": current_ip,
+                "ttl": 1, # Auto
+                "proxied": record.get('proxied', True)
+            }
+            u_res = requests.put(f"{self.api_url}/zones/{zone_id}/dns_records/{record['id']}", 
+                                 headers=self.headers, json=update_data)
+            
+            if u_res.json().get('success'):
+                results.append(f"[{domain}] Updated to {current_ip}.")
+            else:
+                results.append(f"[{domain}] Update failed: {u_res.text}")
+        
+        return "\n".join(results)
+
+    def list_domains(self):
+        return self.ddns_domains