From 0b27cbb9defc0ef95a5490b6610cb8a44e7951c4 Mon Sep 17 00:00:00 2001
From: ssn <soeren.siim.nielsen@sallinggroup.com>
Date: Thu, 12 Mar 2026 20:38:26 +0100
Subject: [PATCH] Added bash & nushell versions

---
 fixDNS.nu | 30 ++++++++++++++++++++++++++++++
 fixDNS.sh | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 fixDNS.nu
 create mode 100644 fixDNS.sh

diff --git a/fixDNS.nu b/fixDNS.nu
new file mode 100644
index 0000000..46b5afe
--- /dev/null
+++ b/fixDNS.nu
@@ -0,0 +1,30 @@
+#!/usr/bin/env nu
+#First stab at a nushell script, let's fix Cloudflare DNS
+let timeStamp = date now | format date "%Y-%m-%dT%H:%M:%S"
+let cfToken = "gbkanjmrKgCEqusC28anY3PNTrOdovurXTmbackA"
+let myIp = http get https://api.ipify.org
+let cfAPIBaseURI = "https://api.cloudflare.com/client/v4/"
+let authHeader = {
+    Authorization: $"Bearer ($cfToken)"
+}
+let dnsZones = (http get $"($cfAPIBaseURI)zones" --headers $authHeader).result
+#Iterate through the array of dnsZones
+$dnsZones | each {
+    |zone| 
+    #Get all the non-Tailscale A-records (those where the IP does not start with 100) that don't match $myIp
+    let badRecords = ((http get $"($cfAPIBaseURI)zones/($zone.id)/dns_records" --headers $authHeader).result | where type == "A" and content =~ "^(?!^100)" and content != $myIp)
+    $badRecords | each {
+        |badRecord|
+        #Update the DNS record to the correct IP
+        let recordBody = {
+            comment: $"($timeStamp) | Updated automatically from ($badRecord.content) to ($myIp)"
+            content: $"($myIp)"
+        }
+        let updateResult = (http patch $"($cfAPIBaseURI)zones/($zone.id)/dns_records/($badRecord.id)" $recordBody --headers $authHeader --content-type application/json)
+        if $updateResult.success {
+            print $"Successfully changed the DNS record for ($badRecord.name) from ($badRecord.content) to ($myIp)"
+        } else {
+            print $"Failed to change the DNS record for ($badRecord.name) from ($badRecord.content) to ($myIp)"
+        }
+    }
+} | compact --empty #Don't output empty lists
diff --git a/fixDNS.sh b/fixDNS.sh
new file mode 100644
index 0000000..0482da3
--- /dev/null
+++ b/fixDNS.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+#Handle Cloudflare DNS for my domains automatically
+#But with a shell script instead of Powershell this time
+timeStamp=$(date +"%Y-%m-%dT%H:%M:%S")
+cfToken="gbkanjmrKgCEqusC28anY3PNTrOdovurXTmbackA"
+myIp=$(curl "api.ipify.org" -s)
+cfAPIBaseURI="https://api.cloudflare.com/client/v4/"
+authHeader="Authorization: Bearer $cfToken"
+zones=$(curl -X GET "${cfAPIBaseURI}zones" --header "$authHeader" -s)
+#Stuff it all in a Bash array
+readarray -t zoneArray < <(jq -c '.result.[]' <<< $zones)
+# iterate through the Bash array
+for zone in "${zoneArray[@]}"; do
+   zoneName=$(jq --raw-output '.name' <<< "$zone")
+   #echo $zoneName
+   zoneId=$(jq -r '.id' <<< "$zone")
+   #Pull the DNS records
+   dnsRecords=$(curl -X GET "${cfAPIBaseURI}zones/${zoneId}/dns_records" --header "$authHeader" -s)
+   #Stuff it all in a Bash array
+   readarray -t dnsRecordsArray < <(jq -c '.result.[]' <<< $dnsRecords)
+   # iterate through the Bash array
+      for dnsRecord in "${dnsRecordsArray[@]}"; do
+         dnsRecordType=$(jq -r '.type' <<< "$dnsRecord")
+         #A records only, pls
+         if [ $dnsRecordType == "A" ]
+         then
+            #Check the IP
+            dnsRecordIp=$(jq -r '.content' <<< "$dnsRecord")
+            #Never mind the TailScale ones and the ones matching myIp (The latter 'cause they don't need to be changed)
+            [[ "$dnsRecordIp" =~ ^100|$myIp ]] && continue || 
+                #echo "Found a mismatch in the A record for zone ID ${zoneId}"
+                #Get the record ID
+                dnsRecordId=$(jq -r '.id' <<< "$dnsRecord")
+                comment="${timeStamp} | Updated automatically from ${dnsRecordIp} to ${myIp}"
+                content="${myIp}"
+                #Build a JSON array to send to Cloudflare as the request body
+                recordBody=$(jq -n -c \
+                --arg comment "${comment}" \
+                --arg content "${content}" \
+                '{comment: $comment, content: $content}')
+                #Now send that body to Cloudflare so the changes are made
+                result=$(curl -X PATCH  "${cfAPIBaseURI}zones/${zoneId}/dns_records/${dnsRecordId}" --header "$authHeader" --header "Content-Type: application/json" -d "${recordBody}" -s)
+                #Parse the JSON result
+                success=$(jq -r '.success' <<< "$result")
+                #echo $success
+                if [ $success ]
+                then
+                    echo "Successfully updated the A record for ${zoneName} from ${dnsRecordIp} to ${myIp}"
+                else
+                    echo "Failed to update the A record for ${zoneName} from ${dnsRecordIp} to ${myIp}"
+                fi
+         fi
+      done
+done
\ No newline at end of file