Merge pull request #57 from omeganot/master

Config option for purge/delete of "stale" records

cloudflare-ddns.py

@@ -33,6 +33,7 @@ def getIPs():
     aaaa = None
     global ipv4_enabled
     global ipv6_enabled
+    global purgeUnknownRecords
     if ipv4_enabled:
         try:
             a = requests.get("https://1.1.1.1/cdn-cgi/trace").text.split("\n")
@@ -43,6 +44,7 @@ def getIPs():
             if not shown_ipv4_warning:
                 shown_ipv4_warning = True
                 print("🧩 IPv4 not detected")
+            if purgeUnknownRecords:
                 deleteEntries("A")
     if ipv6_enabled:
         try:
@@ -54,6 +56,7 @@ def getIPs():
             if not shown_ipv6_warning:
                 shown_ipv6_warning = True
                 print("🧩 IPv6 not detected")
+            if purgeUnknownRecords:
                 deleteEntries("AAAA")
     ips = {}
     if(a is not None):
@@ -118,6 +121,7 @@ def commitRecord(ip):
                 print("➕ Adding new record " + str(record))
                 response = cf_api(
                     "zones/" + option['zone_id'] + "/dns_records", "POST", option, {}, record)
+            if purgeUnknownRecords:
                 for identifier in duplicate_ids:
                     identifier = str(identifier)
                     print("🗑️ Deleting stale record " + identifier)
@@ -165,6 +169,7 @@ if __name__ == '__main__':
     shown_ipv6_warning = False
     ipv4_enabled = True
     ipv6_enabled = True
+    purgeUnknownRecords = False
 
     if(version < 3.5):
         raise Exception("🐍 This script requires Python 3.5+")
@@ -185,6 +190,11 @@ if __name__ == '__main__':
             ipv4_enabled = True
             ipv6_enabled = True
             print("⚙️ Individually disable IPv4 or IPv6 with new config.json options. Read more about it here: https://github.com/timothymiller/cloudflare-ddns/blob/master/README.md")
+        try:
+            purgeUnknownRecords = config["purgeUnknownRecords"]
+        except:
+            purgeUnknownRecords = False
+            print("⚙️ No config detected for 'purgeUnknownRecords' - defaulting to False")
         if(len(sys.argv) > 1):
             if(sys.argv[1] == "--repeat"):
                 delay = 5*60

config-example.json

@@ -1,4 +1,5 @@
 {
+  "purgeUnknownRecords": false,
   "cloudflare": [
     {
       "authentication": {