From 39577ccc0611c1589f4a77cf7fd95d79322470ef Mon Sep 17 00:00:00 2001
From: Matthias Kretschmann <m@kretschmann.io>
Date: Tue, 16 Feb 2021 21:18:04 +0100
Subject: [PATCH] cloudflare dyndns tweaks

---
 bin/cloudflare-dyndns.sh | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/bin/cloudflare-dyndns.sh b/bin/cloudflare-dyndns.sh
index 10686cd..15913f1 100755
--- a/bin/cloudflare-dyndns.sh
+++ b/bin/cloudflare-dyndns.sh
@@ -2,21 +2,34 @@
 
 # Required env vars
 # CLOUDFLARE_ZONE="xxx"
-# CLOUDFLARE_DNS_RECORD_ID="xxx"
+# CLOUDFLARE_DNS_RECORD_ID_A="xxx"
+# CLOUDFLARE_DNS_RECORD_ID_AAAA="xxx"
 # CLOUDFLARE_EMAIL="xxx"
 # CLOUDFLARE_KEY="xxx"
 
 # Update Cloudflare DNS record with current detected public IP
 # https://api.cloudflare.com/#dns-records-for-a-zone-patch-dns-record
  function updateIp {
-   IPADDR=$(curl -s checkip.amazonaws.com)
-   echo $IPADDR
 
-   curl -X PATCH "https://api.cloudflare.com/client/v4/zones/$CLOUDFLARE_ZONE/dns_records/$CLOUDFLARE_DNS_RECORD_ID" \
+   # IPv4 A record
+   IPADDRv4=$(dig @resolver4.opendns.com myip.opendns.com +short)
+   echo "Public IPv4: $IPADDRv4"
+
+   curl -X PATCH "https://api.cloudflare.com/client/v4/zones/$CLOUDFLARE_ZONE/dns_records/$CLOUDFLARE_DNS_RECORD_ID_A" \
      -H "X-Auth-Email: $CLOUDFLARE_EMAIL" \
      -H "X-Auth-Key: $CLOUDFLARE_KEY" \
      -H "Content-Type: application/json" \
-    --data "{\"content\":\"$IPADDR\"}"
+    --data "{\"content\":\"$IPADDRv4\"}"
+
+    # IPv6 AAAA record
+    IPADDRv6=$(dig @resolver1.ipv6-sandbox.opendns.com AAAA myip.opendns.com +short -6)
+    echo "Public IPv6: $IPADDRv6"
+
+    curl -X PATCH "https://api.cloudflare.com/client/v4/zones/$CLOUDFLARE_ZONE/dns_records/$CLOUDFLARE_DNS_RECORD_ID_AAAA" \
+     -H "X-Auth-Email: $CLOUDFLARE_EMAIL" \
+     -H "X-Auth-Key: $CLOUDFLARE_KEY" \
+     -H "Content-Type: application/json" \
+     --data "{\"content\":\"$IPADDRv6\"}"
  }
 
  updateIp
\ No newline at end of file