Small fix on v6-handeling

Human error while rebasing the project.

LICENSE

@@ -0,0 +1,236 @@
+GNU AFFERO GENERAL PUBLIC LICENSE
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
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+                            Preamble
+
+The GNU Affero General Public License is a free, copyleft license for software and other kinds of works, specifically designed to ensure cooperation with the community in the case of network server software.
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+The licenses for most software and other practical works are designed to take away your freedom to share and change the works.  By contrast, our General Public Licenses are intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users.
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+     Copyright (C) 2025  Skyfritt
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+

README.md

@@ -1,30 +1,45 @@
 # DNSDrone
 
-DNSDrone is a Bash script that automatically updates DNS records (A, AAAA, and PTR) in FreeIPA or standard DNS servers using nsupdate. It detects your current public IPv4 and IPv6 addresses and updates the configured DNS records when changes are detected.
+DNSDrone is a collection of scripts for automatically updating DNS records (A, AAAA, PTR, and TXT) in FreeIPA or standard DNS servers. It supports both Bash environments and Mikrotik routers.
 
 ## Features
 
-- Supports both IPv4 (A) and IPv6 (AAAA) records
-- Optional PTR record management for both IPv4 and IPv6
-- Optional TXT record management for IPv6 prefix tracking
-- Supports authentication via FreeIPA user/password or TSIG keys
-- Configurable through environment variables
-- Debug mode for troubleshooting
-- Dry run mode for testing
-- Flexible .env file location detection
-- Multiple IP address providers for redundancy
-- Support for updating zone apex (root domain)
+### Common Features
+- Full DNS record management (A, AAAA, PTR, and TXT records)
+- IPv6 prefix tracking and updates
+- Support for zone apex (root domain) updates
+- FreeIPA API integration
+
+### Bash Script Features
+- Dual authentication support (FreeIPA user/password or TSIG keys)
+- Flexible configuration with environment variables and multiple .env file locations
+- Advanced operational modes (debug, dry-run, auto-update)
+- Multiple IP provider fallback for reliable address detection
+- Automatic updates with version checking
+
+### Mikrotik Script Features
+- Native RouterOS integration
+- DHCP client-based IP detection
+- DoH (DNS over HTTPS) support for TXT record queries
+- Cookie-based FreeIPA authentication
 
 ## Prerequisites
 
+### For Bash Script
 - curl
 - jq
 - dig
 - nsupdate
 - [ipcalc or ipcalc-ng](https://gitlab.com/ipcalc/ipcalc) ("ng" for Debian-based distros)
 
+### For Mikrotik Script
+- RouterOS with SSH capability
+- DHCP client configuration
+- Internet connectivity for API access
+
 ## Configuration
 
+### Bash Script Configuration
 The script looks for a `.env` file in the following locations (in order):
 1. Current working directory (`.env`)
 2. Script's real path directory (`.env`)
@@ -32,67 +47,56 @@ The script looks for a `.env` file in the following locations (in order):
 4. Script's symlink path directory (`.env.<symlink_name>`)
 5. `/opt/skyfritt-tools-env/.env.<symlink_name>`
 
-### Required Variables
-
+#### Required Variables
 | Variable | Description |
 |----------|-------------|
 | `SERVER` | DNS server hostname or IP address |
 | `ZONE_NAME` | DNS zone name (e.g., "example.com") |
 | `RECORD_NAME` | Hostname to update (without domain). Skip to update zone apex |
 
-### Authentication Variables
-Either USER/PASSWORD or TSIG authentication must be configured:
+[Rest of the existing configuration documentation remains the same...]
 
-#### FreeIPA Authentication
-| Variable | Description |
-|----------|-------------|
-| `USER` | FreeIPA username |
-| `PASSWORD` | FreeIPA password |
+### Mikrotik Script Configuration
+Configure the script by modifying the CONFIG dictionary:
 
-**IMPORTANT!** When using FreeIPA's API, the records has to exist *before* the script can be used. It can only modify, not add, records.
+```rsc
+:local CONFIG {
+    "wanInterface"="VLAN666_Altibox";
+    "IpaServer"="ipa.demo1.freeipa.org";
+    "dnsZone"="demo1.freeipa.org";
+    "IpaUser"="admin";
+    "IpaPassword"="Secret123";
+    "apiVersion"="2.253";
+    "recordTTL"="300";
+    # [Additional configuration options...]
+}
+```
 
-#### TSIG Authentication
-| Variable | Description |
-|----------|-------------|
-| `TSIG_KEYNAME` | Name of the TSIG key |
-| `TSIG_KEY_TYPE` | Type of TSIG key (e.g., "hmac-sha256") |
-| `TSIG_KEY` | The TSIG key value |
+## Usage
 
-### Optional Variables
+### Bash Script
+```bash
+# Basic usage
+./dnsdrone.sh
 
-| Variable | Description | Default |
-|----------|-------------|---------|
-| `RECORD_TTL` | Time-to-live value for DNS records in seconds | 60 |
-| `RECORD_A` | Enable IPv4 (A) record updates | false |
-| `RECORD_AAAA` | Enable IPv6 (AAAA) record updates | false |
-| `RECORD_PTR4` | Enable IPv4 PTR record updates | false |
-| `RECORD_PTR6` | Enable IPv6 PTR record updates | false |
-| `RECORD_TXT_PREFIX` | Enable TXT record updates for IPv6 prefix | false |
-| `ISP_PREFIX_LENGHT` | IPv6 prefix length for TXT record updates | Required if RECORD_TXT_PREFIX is true |
-| `API_VERSION` | FreeIPA API version | 2.253 |
+# Debug mode
+./dnsdrone.sh -d
 
-### Example Configuration
+# Dry run
+./dnsdrone.sh -n
 
-```env
-# Server Configuration
-SERVER=dns.example.com
-ZONE_NAME=example.com
-RECORD_NAME=myhost
-RECORD_TTL=300
+# Check for updates
+./dnsdrone.sh -c
 
-# FreeIPA Authentication
-USER=dnsuser
-PASSWORD=secretpassword
+# Auto-update
+./dnsdrone.sh -a
+```
 
-# Alternative: TSIG Authentication
-# TSIG_KEYNAME=mykey
-# TSIG_KEY_TYPE=hmac-sha256
-# TSIG_KEY="base64encodedkey=="
+### Mikrotik Script
+1. Upload the script to your Mikrotik router
+2. Configure the CONFIG dictionary
+3. Run manually or schedule via RouterOS scheduler
 
-# Record Configuration
-RECORD_A=true
-RECORD_AAAA=true
-RECORD_PTR4=false
-RECORD_PTR6=false
-RECORD_TXT_PREFIX=true
-ISP_PREFIX_LENGHT=56
+## License
+
+Licensed under GNU Affero General Public License v3 (AGPL-3.0)

dnsdrone.rsc

@@ -1,25 +1,10 @@
 #!rsc by RouterOS
 # DNSDrone for Mikrotik - DNS Record Updater for FreeIPA
 
-# This script:
-# 1. Consolidates all configuration into a single CONFIG dictionary
-# 2. Includes a function for making FreeIPA API calls
-# 3. Gets current IP addresses from DHCP clients
-# 4. Compares with existing DNS records
-# 5. Updates records only when they differ
-# 6. Handles both IPv4 and IPv6 records
-# 7. Updates the prefix TXT record
-#
-# To use this:
-# 1. Replace the configuration values in the CONFIG dictionary
-# 2. Save it as a script in your Mikrotik router
-# 3. Schedule it to run periodically or trigger it manually
-#
-# Note: You might need to adjust the HTTP headers and API calls based on your specific FreeIPA version and requirements. Also, ensure your Mikrotik router has proper SSL/TLS # certificates installed for HTTPS communication with the FreeIPA server.
 
 # Configuration Variables
 :local CONFIG {
-    "wanInterface"="VLAN666_Altibox";
+    "wanInterface"="VLAN666_WAN_Telenor";
     "IpaServer"="ipa.demo1.freeipa.org";
     "dnsZone"="demo1.freeipa.org";
     "IpaUser"="admin";
@@ -43,7 +28,7 @@
     "DoHserver"="one.one.one.one";
 
 #   Script options (true/false)
-    "debug"="true"
+    "Debug"="true"
 
 }
 
@@ -54,9 +39,39 @@
 #   Import config
     :local CONFIG $1;
 
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+
+        :put "";
+        :put "* RouterOS-multiline authentication-command (what we want):";
+        :put "";
+        :put "/tool fetch url=\"https://$($CONFIG->"IpaServer")/ipa/session/login_password\" \\";
+        :put "    http-method=post \\";
+        :put "    http-header-field=\"Accept: text/plain, \\";
+        :put "    Content-Type: application/x-www-form-urlencoded, \\";
+        :put "    Referer: https://$($CONFIG->"IpaServer")/ipa,\\";
+        :put "    X-IPA-API-Version: $($CONFIG->"apiVersion")\" \\";
+        :put "    http-data=\"user=$($CONFIG->"IpaUser")&password=$($CONFIG->"IpaPassword")\" \\";
+        :put "    output=user-with-headers";
+        :put "";
+        :put "* Reverting to ugly curl+ssh workaround instead via the following command:";
+        :put "";
+        :put "/system ssh-exec \"$($CONFIG->"curlproxyserver")\" user=\"$($CONFIG->"curlproxyuser")\" \\";
+        :put "    command=\"curl -s -k -i -H 'Accept: text/plain' \\";
+        :put "    -H 'Content-Type: application/x-www-form-urlencoded' \\";
+        :put "    -H 'Referer: https://$($CONFIG->"IpaServer")/ipa' \\";
+        :put "    -H 'X-IPA-API-Version: $($CONFIG->"apiVersion")' \\";
+        :put "    --data-urlencode 'user=$($CONFIG->"IpaUser")' \\";
+        :put "    --data-urlencode 'password=$($CONFIG->"IpaPassword")' \\";
+        :put "    'https://$($CONFIG->"IpaServer")/ipa/session/login_password'\" \\";
+        :put "    output-to-file=\"$($CONFIG->"cookiefile")\"";
+        :put "";
+
+
+    }
+
 #   Save Cookie-information in tempoary local file via ugly ssh hack
 
-    /system ssh "$($CONFIG->"curlproxyserver")" user="$($CONFIG->"curlproxyuser")" \
+    /system ssh-exec "$($CONFIG->"curlproxyserver")" user="$($CONFIG->"curlproxyuser")" \
         command="curl -s -k -i -H 'Accept: text/plain' \
         -H 'Content-Type: application/x-www-form-urlencoded' \
         -H 'Referer: https://$($CONFIG->"IpaServer")/ipa' \
@@ -80,7 +95,7 @@
     :if ($startIndex != -1) do={
         :set startIndex ($startIndex + 12)
     
-        :local endIndex [:find $fileContents "\n" $startIndex]
+        :local endIndex [:find $fileContents "\r\n" $startIndex]
         :if ($endIndex = -1) do={ 
             :set endIndex [:len $fileContents]
         }
@@ -91,8 +106,8 @@
 #   Cleaning up the cookiefile
     /file remove "$($CONFIG->"cookiefile")"
 
-    :put "DEBUG (function: GetIPACookie):; 
-    :put Ipakjeks: $cookie";
+#    :put "DEBUG (function: GetIPACookie):; 
+#    :put Ipakjeks: $cookie";
 
 #   Output
     :return "$cookie";
@@ -113,42 +128,70 @@
     :local resultClean;
 
     :if ($ConfigType = "ipv4address" ) do={
+#       Retrieve information with error handling
+        :local dhcpError;
+        :onerror dhcpError in={
+            :set resultRAW [/ip dhcp-client get [/ip dhcp-client find interface="$($CONFIG->"wanInterface")"] address];
+        } do={
+            :put "* Warning: Failed to get DHCPv4 address for interface $($CONFIG->"wanInterface"): $dhcpError";
+            # Set default value on error
+            :set resultRAW "";
+        }
+        
+#       Clean information only if resultRAW was set successfully
+        :if ([:len "$resultRAW"] != 0) do={
+            :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" "/"]];
+        } else={
+            :set resultClean "NA";
+        }
 
-#       Retrive information
-        :set resultRAW [/ip dhcp-client get [/ip dhcp-client find interface="$($CONFIG->"wanInterface")"] address];
+    }
+    
 
 
-#       Clean information
-        :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" "/"]];
-
-#        :put "DEBUG: resultClean: $resultClean";
-
+    :if ($ConfigType = "ipv6address" ) do={
+#       Retrieve information with error handling
+        :local dhcpError;
+        :onerror dhcpError in={
+            :set resultRAW [/ipv6 dhcp-client get [/ipv6 dhcp-client find interface="$($CONFIG->"wanInterface")"] address];
+        } do={
+            :put "* Warning: Failed to get DHCPv6 address for interface $($CONFIG->"wanInterface"): $dhcpError";
+            # Set default value on error
+            :set resultRAW "";
+        }
+        
+#       Clean information only if resultRAW was set successfully
+        :if ([:len "$resultRAW"] != 0) do={
+            :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" ","]];
+        } else={
+            :set resultClean "NA";
+        }
 
     }
 
-    :if ($ConfigType = "ipv6address") do={
 
-#       Retrive information
-        :set resultRAW [/ipv6 dhcp-client get [/ipv6 dhcp-client find interface="$($CONFIG->"wanInterface")"] address];
 
-#       Clean information
-        :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" ","]];
 
-#        :put "DEBUG: resultClean: $resultClean";
+    :if ($ConfigType = "ipv6prefix" ) do={
+#       Retrieve information with error handling
+        :local dhcpError;
+        :onerror dhcpError in={
+            :set resultRAW [/ipv6 dhcp-client get [/ipv6 dhcp-client find interface="$($CONFIG->"wanInterface")"] prefix];
+        } do={
+            :put "* Warning: Failed to get DHCPv6 prefix for interface $($CONFIG->"wanInterface"): $dhcpError";
+            # Set default value on error
+            :set resultRAW "";
+        }
+        
+#       Clean information only if resultRAW was set successfully
+        :if ([:len "$resultRAW"] != 0) do={
+            :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" ","]];
+        } else={
+            :set resultClean "NA";
+        }
 
     }
 
-    :if ($ConfigType = "ipv6prefix") do={
-
-#       Retrive information
-        :set resultRAW [/ipv6 dhcp-client get [/ipv6 dhcp-client find  interface="$($CONFIG->"wanInterface")"] prefix];
-
-#       Clean information
-        :set resultClean [:pick "$resultRAW" 0 [:find "$resultRAW" ","]];
-
-#        :put "DEBUG: resultClean: $resultClean";
-
-    }
 
 #   Output
     :return "$resultClean";
@@ -171,35 +214,56 @@
     :local resultRAW;
     :local resultClean;
 
+
     :if ($ConfigType = "ipv4address" ) do={
-
-#       Retrive information
-        :set resultRAW [/resolve "$RecordName" server="$($CONFIG->"DNSserver")" type=ipv4]
-
-#       Clean information
-        :set resultClean "$resultRAW";
-
-#        :put "DEBUG: resultClean: $resultClean";
-
+#       Retrive information with error handling
+        :local resolveError;
+        :onerror resolveError in={
+            :set resultRAW [/resolve "$RecordName" server="$($CONFIG->"DNSserver")" type=ipv4];
+        } do={
+            :put "* Warning: Failed to resolve IPv4 address for $RecordName: $resolveError";
+            # You can set a default value or take alternative action
+            :set resultRAW "";
+        }
+        
+#       Clean information (only if resultRAW was set successfully)
+        :if ([:len "$resultRAW"] != 0) do={
+            :set resultClean "$resultRAW";
+        } else={
+            :set resultClean "NA";
+        }
     }
 
+
+
     :if ($ConfigType = "ipv6address" ) do={
-
-#       Retrive information
-        :set resultRAW [/resolve "$RecordName" server="$($CONFIG->"DNSserver")" type=ipv6]
-
-#       Clean information
-        :set resultClean "$resultRAW";
-
-#        :put "DEBUG: resultClean: $resultClean";
-
+#       Retrive information with error handling
+        :local resolveError;
+        :onerror resolveError in={
+            :set resultRAW [/resolve "$RecordName" server="$($CONFIG->"DNSserver")" type=ipv6];
+        } do={
+            :put "* Warning: Failed to resolve IPv6 address for $RecordName: $resolveError";
+            # You can set a default value or take alternative action
+            :set resultRAW "";
+        }
+        
+#       Clean information (only if resultRAW was set successfully)
+        :if ([:len "$resultRAW"] != 0) do={
+            :set resultClean "$resultRAW";
+        } else={
+            :set resultClean "NA";
+        }
     }
 
 
+
     :if ($ConfigType = "ipv6prefix") do={
 
 #       Fetch prefix TXT-record via DoH server:
-        :set resultRAW [/tool fetch url="https://$($CONFIG->"DoHserver")/dns-query?name=$RecordName&type=TXT" http-method=get output=user http-header-field="accept: application/dns-json" as-value];
+        :set resultRAW [/tool fetch \
+            url="https://$($CONFIG->"DoHserver")/dns-query?name=$RecordName&type=TXT" \
+            http-method=get http-header-field="accept: application/dns-json" \
+            output=user as-value];
 
 #        :put "DEBUG: resultRAW: $resultRAW";
 
@@ -252,39 +316,108 @@
     :local resultRAW;
     :local resultClean;
 
-    put "DEBUG: IPACookie: $IPACookie"; 
-    put "DEBUG: ConfigType: $ConfigType"; 
-    put "DEBUG: RecordName: $RecordName"; 
-    put "DEBUG: RecordContent: $RecordContent"; 
-
     :if ($ConfigType = "ipv4address" ) do={
             
-#       Construct valid json-data:
-#        :local httpheader "\"Accept: application/json,Content-Type: application/json, Referer: https://$($CONFIG->"IpaServer")/ipa, X-IPA-API-Version: $($CONFIG->"apiVersion"), Cookie: $IPACookie \"\"";
-        :local httpdata "{\"method\":\"dnsrecord_mod\",\"params\":[[\"$($CONFIG->"dnsZone")\",\"$RecordName.\"],{\"arecord\":\"$RecordContent\",\"dnsttl\":$($CONFIG->"recordTTL")}]}";
+        :local IPACookieData "$IPACookie";
 
-        :local IPACookieData "$cookie";
-#        :local IPACookieData "ipa_session=MagBearerToken=4ZTumSEI1zR%2fcPkbvlzM2lkT7CR9ojGOsvOzji0MO8ee61xUjZqXX3Ecs9n1FCHl0Vyn1U0EEooAAQk2DZ9GWT1Wt43Zx06sqDjDd5Ku8OJMa0W5SzkQuIQs%2f2hqkFoREevjwefgXurIlSxvDyVofXzJM726ZUAZsGICL9UawnWmo%2f7IVIqPRnNkb5g2NeMJKgThT0xuJ1G4nRY8w0CuIJV%2fJnVk9%2fjK%2bg%2bEjxhE3Lo%3d;path=/ipa;httponly;secure;";
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+
+            :put "* RouterOS-multiline update-command:";
+            :put "";
+            :put "/tool fetch url=\"https://$($CONFIG->"IpaServer")/ipa/session/json\" \\";
+            :put "    http-method=post \\";
+            :put "    http-header-field=\"Accept: application/json, \\";
+            :put "    Content-Type: application/json,\\";
+            :put "    Referer: https://$($CONFIG->"IpaServer")/ipa,\\";
+            :put "    X-IPA-API-Version: $($CONFIG->"apiVersion"),\\";
+            :put "    Cookie: $IPACookieData\" \\";
+            :put "    http-data=\"{\\\"method\\\":\\\"dnsrecord_mod\\\",\\\"params\\\":[[\\\"$($CONFIG->"dnsZone")\\\",\\\"$RecordName.\\\"],{\\\"arecord\\\":\\\"$RecordContent\\\",\\\"dnsttl\\\":$($CONFIG->"recordTTL")}]}\" \\";
+            :put "    keep-result=no";
+            :put "";
+        }
 
 
-        put "DEBUG: (NEW)IPACookie = $IPACookie"; 
-        put "DEBUG: IPACookieData  = $IPACookieData"; 
-        put "DEBUG: http-data=$httpdata"; 
 
         /tool fetch url="https://$($CONFIG->"IpaServer")/ipa/session/json" \
             http-method=post \
-            http-header-field="Accept: application/json,Content-Type: application/json,\
+            http-header-field="Accept: application/json, \
+            Content-Type: application/json,\
             Referer: https://$($CONFIG->"IpaServer")/ipa,\
             X-IPA-API-Version: $($CONFIG->"apiVersion"),\
             Cookie: $IPACookieData" \
-            http-data="$httpdata" \
+            http-data="{\"method\":\"dnsrecord_mod\",\"params\":[[\"$($CONFIG->"dnsZone")\",\"$RecordName.\"],{\"arecord\":\"$RecordContent\",\"dnsttl\":$($CONFIG->"recordTTL")}]}" \
             keep-result=no
-
-#            http-data="{\"method\":\"dnsrecord_mod\",\"params\":[[\"$($CONFIG->"dnsZone")\",\"$RecordName.\"],{\"arecord\":\"$RecordContent\",\"dnsttl\":$($CONFIG->"recordTTL")}]}" \
-#            Cookie: $IPACookie" \
-
     }
 
+    :if ($ConfigType = "ipv6address" ) do={
+            
+        :local IPACookieData "$IPACookie";
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+
+            :put "* RouterOS-multiline update-command:";
+            :put "";
+            :put "/tool fetch url=\"https://$($CONFIG->"IpaServer")/ipa/session/json\" \\";
+            :put "    http-method=post \\";
+            :put "    http-header-field=\"Accept: application/json, \\";
+            :put "    Content-Type: application/json,\\";
+            :put "    Referer: https://$($CONFIG->"IpaServer")/ipa,\\";
+            :put "    X-IPA-API-Version: $($CONFIG->"apiVersion"),\\";
+            :put "    Cookie: $IPACookieData\" \\";
+            :put "    http-data=\"{\\\"method\\\":\\\"dnsrecord_mod\\\",\\\"params\\\":[[\\\"$($CONFIG->"dnsZone")\\\",\\\"$RecordName.\\\"],{\\\"aaaarecord\\\":\\\"$RecordContent\\\",\\\"dnsttl\\\":$($CONFIG->"recordTTL")}]}\" \\";
+            :put "    keep-result=no";
+            :put "";
+        }
+
+        /tool fetch url="https://$($CONFIG->"IpaServer")/ipa/session/json" \
+            http-method=post \
+            http-header-field="Accept: application/json, \
+            Content-Type: application/json,\
+            Referer: https://$($CONFIG->"IpaServer")/ipa,\
+            X-IPA-API-Version: $($CONFIG->"apiVersion"),\
+            Cookie: $IPACookieData" \
+            http-data="{\"method\":\"dnsrecord_mod\",\"params\":[[\"$($CONFIG->"dnsZone")\",\"$RecordName.\"],{\"aaaarecord\":\"$RecordContent\",\"dnsttl\":$($CONFIG->"recordTTL")}]}" \
+            keep-result=no
+    }
+
+    :if ($ConfigType = "ipv6prefix" ) do={
+            
+        :local IPACookieData "$IPACookie";
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+
+            :put "* RouterOS-multiline update-command:";
+            :put "";
+            :put "/tool fetch url=\"https://$($CONFIG->"IpaServer")/ipa/session/json\" \\";
+            :put "    http-method=post \\";
+            :put "    http-header-field=\"Accept: application/json, \\";
+            :put "    Content-Type: application/json,\\";
+            :put "    Referer: https://$($CONFIG->"IpaServer")/ipa,\\";
+            :put "    X-IPA-API-Version: $($CONFIG->"apiVersion"),\\";
+            :put "    Cookie: $IPACookieData\" \\";
+            :put "    http-data=\"{\\\"method\\\":\\\"dnsrecord_mod\\\",\\\"params\\\":[[\\\"$($CONFIG->"dnsZone")\\\",\\\"$RecordName.\\\"],{\\\"txtrecord\\\":\\\"\\\\\\\"$RecordContent\\\\\\\"\\\",\\\"dnsttl\\\":$($CONFIG->"recordTTL")}]}\" \\";
+            :put "    keep-result=no";
+            :put "";
+        }
+
+        /tool fetch url="https://$($CONFIG->"IpaServer")/ipa/session/json" \
+            http-method=post \
+            http-header-field="Accept: application/json, \
+            Content-Type: application/json,\
+            Referer: https://$($CONFIG->"IpaServer")/ipa,\
+            X-IPA-API-Version: $($CONFIG->"apiVersion"),\
+            Cookie: $IPACookieData" \
+            http-data="{\"method\":\"dnsrecord_mod\",\"params\":[[\"$($CONFIG->"dnsZone")\",\"$RecordName.\"],{\"txtrecord\":\"\\\"$RecordContent\\\"\",\"dnsttl\":$($CONFIG->"recordTTL")}]}" \
+            keep-result=no
+    }
+
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put ""
+    }
+
+
+
 
 #   Output
     :return "$resultClean";
@@ -301,24 +434,29 @@
 
 
 # Main Runtime
+
+:local UpdateDNS;
+:local UpdateCurrentDualStackRecordv4;
+:local UpdateCurrentDualStackRecordv6;
+:local UpdateCurrentSingleStackRecordv4;
+:local UpdateCurrentSingleStackRecordv6;
+:local UpdateCurrentTXTRecordIPv6Prefix;
  
-#:local IPACookie "drytest";
-:local IPACookie [$GetIPACookie $CONFIG];
-:put "DEBUG: IPACookie: $IPACookie";
+
+
+:if ( "$($CONFIG->"Debug")" = "true") do={
+
+    :put "";
+    :put "Debug: Collecting information"; 
+    :put "#############################"; 
+    :put "";
+
+}
+
 
 :local CurrentIPv4address [$GetLocalDynamicConfig $CONFIG ipv4address];
-:put "DEBUG CurrentIPv4address: $CurrentIPv4address";
-
 :local CurrentIPv6address [$GetLocalDynamicConfig $CONFIG ipv6address];
-:put "DEBUG: CurrentIPV6address: $CurrentIPv6address";
-
 :local CurrentIPv6prefix [$GetLocalDynamicConfig $CONFIG ipv6prefix];
-:put "DEBUG: CurrentIPv6prefix: $CurrentIPv6prefix";
-
-
-
-
-# "$($CONFIG->"dualStackName").$($CONFIG->"dnsZone")" 
 
 :local CurrentDualStackRecordName "$($CONFIG->"dualStackName").$($CONFIG->"dnsZone")";
 :local CurrentSingleStackIPv4RecordName "$($CONFIG->"ipv4OnlyName").$($CONFIG->"dnsZone")";
@@ -326,20 +464,204 @@
 :local CurrentTXTRecordIPv6PrefixName "$($CONFIG->"prefixTxtName").$($CONFIG->"dnsZone")";
 
 :local CurrentDualStackRecordv4 [$GetDynamicDNSRecords $CONFIG ipv4address $CurrentDualStackRecordName ];
-:put "DEBUG: Dual-stack: $CurrentDualStackRecordName ipv4-resolves as $CurrentDualStackRecordv4";
-
 :local CurrentDualStackRecordv6 [$GetDynamicDNSRecords $CONFIG ipv6address $CurrentDualStackRecordName ];
-:put "DEBUG: Dual-stack: $CurrentDualStackRecordName ipv6-resolves as $CurrentDualStackRecordv6";
-
 :local CurrentSingleStackRecordv4 [$GetDynamicDNSRecords $CONFIG ipv4address $CurrentSingleStackIPv4RecordName ];
-:put "DEBUG: Single-stack-IPv4: $CurrentSingleStackIPv4RecordName ipv4-resolves as $CurrentSingleStackRecordv4";
-
 :local CurrentSingleStackRecordv6 [$GetDynamicDNSRecords $CONFIG ipv6address $CurrentSingleStackIPv6RecordName ];
-:put "DEBUG: Single-stack-IPv6: $CurrentSingleStackIPv6RecordName ipv6-resolves as $CurrentSingleStackRecordv6";
-
 :local CurrentTXTRecordIPv6Prefix [$GetDynamicDNSRecords $CONFIG ipv6prefix $CurrentTXTRecordIPv6PrefixName ];
-:put "DEBUG: $CurrentTXTRecordIPv6PrefixName resolves as $CurrentTXTRecordIPv6Prefix";
 
-:local DebugUpdate [$UpdateDynamicDNSRecord $CONFIG $IPACookie ipv4address $CurrentSingleStackIPv4RecordName $CurrentIPv4address ];
-:put "DEBUG: $DebugUpdate";
+:if ( "$($CONFIG->"Debug")" = "true") do={
+
+    :put "* CurrentIPv4address via DHCPv4 on '$($CONFIG->"wanInterface")' is '$CurrentIPv4address'";
+    :put "* CurrentIPv6address via DHCPv6 on '$($CONFIG->"wanInterface")' is '$CurrentIPv6address'";
+    :put "* CurrentIPv6prefix  via DHCPv6 on '$($CONFIG->"wanInterface")' is '$CurrentIPv6prefix'";
+    :put "";
+    :put "* '$CurrentDualStackRecordName' has the following IPv4-(A)-record '$CurrentDualStackRecordv4'";
+    :put "* '$CurrentDualStackRecordName' has the following IPv6-(AAAA)-record '$CurrentDualStackRecordv6';"
+    :put "* '$CurrentSingleStackIPv4RecordName' has the following IPv4-(A)-record '$CurrentSingleStackRecordv4'";
+    :put "* '$CurrentSingleStackIPv6RecordName' has the following IPv6-(AAAA)-record '$CurrentSingleStackRecordv6';"
+    :put "* '$CurrentTXTRecordIPv6PrefixName' has the following prefix-(TXT)-record '$CurrentTXTRecordIPv6Prefix'";
+    
+}
+
+
+:if ( "$($CONFIG->"Debug")" = "true") do={
+
+    :put "";
+    :put "Debug: Evaluating information"; 
+    :put "#############################"; 
+    :put "";
+}
+
+
+if (("$CurrentDualStackRecordv4" != "$CurrentIPv4address" ) and \
+    ([:typeof [:toip "$CurrentIPv4address"]] = "ip")) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put "* '$CurrentDualStackRecordName' needs to update the IPv4-(A)-record";
+
+    }
+
+    :set $UpdateDNS "true";
+    :set $UpdateCurrentDualStackRecordv4 "true";
+
+} 
+
+
+if (("$CurrentDualStackRecordv6" != "$CurrentIPv6address" ) && \
+    ([:typeof [:toip6 "$CurrentIPv6address"]] = "ip6")) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put "* '$CurrentDualStackRecordName' needs to update the IPv6-(AAAA)-record";
+
+    }
+
+    :set $UpdateDNS "true";
+    :set $UpdateCurrentDualStackRecordv6 "true";
+
+} 
+
+if (("$CurrentSingleStackRecordv4" != "$CurrentIPv4address" ) && \
+    ([:typeof [:toip "$CurrentIPv4address"]] = "ip")) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put "* '$CurrentSingleStackIPv4RecordName' needs to update the IPv4-(A)-record";
+
+    }
+
+    :set $UpdateDNS "true";
+    :set $UpdateCurrentSingleStackRecordv4 "true";
+
+} 
+
+if (("$CurrentSingleStackRecordv6" != "$CurrentIPv6address" ) && \
+    ([:typeof [:toip6 "$CurrentIPv6address"]] = "ip6")) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put "* '$CurrentSingleStackIPv6RecordName' needs to update the IPv6-(AAAA)-record";
+
+    }
+
+    :set $UpdateDNS "true";
+    :set $UpdateCurrentSingleStackRecordv6 "true";
+
+} 
+
+if (("$CurrentTXTRecordIPv6Prefix" != "$CurrentIPv6prefix" ) && \
+#   The following trick/workaround for the check was recomended by forum-sources:
+    ([:typeof ([[:parse "return $CurrentIPv6prefix"]])] = "ip6-prefix")) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+        :put "* '$CurrentTXTRecordIPv6PrefixName' needs to update the prefix-(TXT)-record";
+
+    }
+
+    :set $UpdateDNS "true";
+    :set $UpdateCurrentTXTRecordIPv6Prefix "true";
+
+} 
+
+:put "";
+
+
+
+# UPDATE INFORMATION
+
+if ("$UpdateDNS" != "true" ) do {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+
+        :put "No DNS-updates-nescessary... everything is aye-ok!"
+        :put "";
+
+    }
+
+} else {
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+
+        :put "";
+        :put "Debug: Updating DNS-information"; 
+        :put "###############################"; 
+        :put "";
+    }
+
+    
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+
+        :put "* Attempting to authenticate against '$($CONFIG->"IpaServer")' as user '$($CONFIG->"IpaUser")'"; 
+    }
+
+    :local IPACookie [$GetIPACookie $CONFIG];
+
+    :if ( "$($CONFIG->"Debug")" = "true") do={
+
+        :put "";
+        :put "* The following cookie was recived:"; 
+        :put "- '$IPACookie'"; 
+        :put "";
+    }
+
+
+    if ("$UpdateCurrentDualStackRecordv4" = "true" ) do {
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+            :put "* Attempting to update '$CurrentDualStackRecordName' IPv4-(A)-record with '$CurrentIPv4address' ";
+            :put ""
+        }
+
+        $UpdateDynamicDNSRecord $CONFIG $IPACookie ipv4address $CurrentDualStackRecordName $CurrentIPv4address;
+
+
+    } 
+
+    if ("$UpdateCurrentDualStackRecordv6" = "true" ) do {
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+            :put "* Attempting to update '$CurrentDualStackRecordName' IPv6-(AAAA)-record with '$CurrentIPv6address' ";
+            :put ""
+        }
+
+        $UpdateDynamicDNSRecord $CONFIG $IPACookie ipv6address $CurrentDualStackRecordName $CurrentIPv6address;
+
+
+    } 
+
+
+    if ("$UpdateCurrentSingleStackRecordv4" = "true" ) do {
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+            :put "* Attempting to update '$CurrentSingleStackIPv4RecordName' IPv4-(A)-record with '$CurrentIPv4address' ";
+            :put ""
+        }
+
+        $UpdateDynamicDNSRecord $CONFIG $IPACookie ipv4address $CurrentSingleStackIPv4RecordName $CurrentIPv4address;
+
+    } 
+
+    if ("$UpdateCurrentSingleStackRecordv6" = "true" ) do {
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+            :put "* Attempting to update '$CurrentSingleStackIPv6RecordName' IPv4-(A)-record with '$CurrentIPv6address' ";
+            :put ""
+        }
+
+        $UpdateDynamicDNSRecord $CONFIG $IPACookie ipv6address $CurrentSingleStackIPv6RecordName $CurrentIPv6address;
+
+    } 
+
+    if ("$UpdateCurrentTXTRecordIPv6Prefix" = "true" ) do {
+
+        :if ( "$($CONFIG->"Debug")" = "true") do={
+            :put "* Attempting to update '$CurrentTXTRecordIPv6PrefixName' prefix-(TXT)-record with '$CurrentIPv6prefix' ";
+            :put ""
+        }
+
+        $UpdateDynamicDNSRecord $CONFIG $IPACookie ipv6prefix $CurrentTXTRecordIPv6PrefixName $CurrentIPv6prefix;
+
+    } 
+
+
+
+}
+
 

dnsdrone.sh

@@ -1,40 +1,35 @@
 #!/usr/bin/env bash
 
-# TODO: Make hierarchy of where to check for .env.* files.
-#
-
-# Exit on any error
-# set -e
 set -u  # Exit on undefined variable
 set -o pipefail  # Exit on pipe failures
 
-# Debug flag
 DEBUG=0
 DRY_RUN=0
+CURRENT_VERSION="v1.1"
+FORGEJO_API_URL=${FORGEJO_API_URL:-"https://forge.dmz.skyfritt.net"}
+FORGEJO_ORG=${FORGEJO_ORG:-"Skyfritt"}
+FORGEJO_REPO=${FORGEJO_REPO:-"dnsdrone"}
+AUTO_UPDATE=${AUTO_UPDATE:-0}
+CHECK_UPDATE=${CHECK_UPDATE:-0}
 
-# Default values
 RECORD_A=${RECORD_A:-false}
 RECORD_AAAA=${RECORD_AAAA:-false}
 RECORD_PTR4=${RECORD_PTR4:-false}
 RECORD_PTR6=${RECORD_PTR6:-false}
 ISP_PREFIX_LENGHT="${ISP_PREFIX_LENGHT:-false}"
-# TXT_PREFIX_NAME="${TXT_PREFIX_NAME:-false}"
 API_VERSION=${API_VERSION:-2.253}
 IPCALC_CMD=${IPCALC_CMD:-false}
 RECORD_NAME=${RECORD_NAME:-false}
 
-# Error handling function
 error() {
     echo "[ERROR] $1" >&2
     exit 1
 }
 
-# Function to handle debug output
 debug() {
     [[ $DEBUG -eq 1 ]] && echo "[DEBUG] $1"
 }
 
-# Function to check dependencies
 check_dependencies() {
     local missing=0
     for cmd in curl jq dig nsupdate; do
@@ -44,7 +39,6 @@ check_dependencies() {
         fi
     done
 
-    # Check for ipcalc-ng first, fall back to ipcalc
     if command -v ipcalc-ng >/dev/null 2>&1; then
         debug "Using ipcalc-ng"
         IPCALC_CMD="ipcalc-ng"
@@ -60,50 +54,69 @@ check_dependencies() {
 }
 
 load_env() {
-    local fullRealPath fullLinkPath realPath linkPath realName linkName callDir
-    linkName="$(basename $0)"
-    fullLinkPath="$(readlink "$0")"
-    fullRealPath="$(realpath "$0")"
-    realName="$(basename "$fullRealPath")"
-    realPath="$(dirname "$fullRealPath")"
-    linkPath="$(dirname "$fullLinkPath")"
-    callDir="$(pwd)"
-    local skyfrittEnvPath="/opt/skyfritt-tools-env"
-    local envFile=""
+    local linkName realName envFile=""
+    linkName="$(basename "$0")"
+    realName="$(basename "$(realpath "$0")")"
+    local -r skyfrittEnvPath="/opt/skyfritt-tools-env"
+    local -a searchPaths=(
+        "$(pwd)/.env"
+        "$(dirname "$(realpath "$0")")/.env"
+        "$(dirname "$(realpath "$0")")/.env.${realName}"
+        "$(dirname "$(readlink -f "$0" 2>/dev/null || echo "$0")")/.env.${linkName}"
+        "${skyfrittEnvPath}/.env.${linkName}"
+    )
 
     debug "Checking for .env file in multiple locations"
 
-    if [[ -f "${callDir}/.env" ]]; then # Check in call directory
-        envFile="${callDir}/.env"
-        debug "Found .env in call directory: ${envFile}"
-    elif [[ -f "${realPath}/.env" ]]; then # Check in real path directory
-        envFile="${realPath}/.env"
-        debug "Found .env in real path directory: ${envFile}"
-    elif [[ -f "${realPath}/.env.${realName}" ]]; then # Check for .env.realName in real path
-        envFile="${realPath}/.env.${realName}"
-        debug "Found .env.${realName} in real path: ${envFile}"
-    elif [[ -f "${linkPath}/.env.${linkName}" ]]; then # Check for .env.linkName in link path
-        envFile="${linkPath}/.env.${linkName}"
-        debug "Found .env.${linkName} in link path: ${envFile}"
-    elif [[ -f "${skyfrittEnvPath}/.env.${linkName}" ]]; then # Check in skyfritt env path
-        envFile="${skyfrittEnvPath}/.env.${linkName}"
-        debug "Found .env.${linkName} in skyfritt path: ${envFile}"
-    fi
+    for path in "${searchPaths[@]}"; do
+        if [[ -f "$path" ]]; then
+            envFile="$path"
+            debug "Found .env file: ${envFile}"
+            break
+        fi
+    done
 
-    [[ -z "$envFile" ]] && error ".env file not found in any location"
+    [[ -z "$envFile" ]] && error "No .env file found in search paths"
+    [[ ! -r "$envFile" ]] && error "Found .env file at ${envFile} but it's not readable"
 
     # shellcheck source=/dev/null
-    source "$envFile" || error "Failed to source .env file"
+    if ! source "$envFile"; then
+        error "Failed to source .env file: ${envFile}"
+    fi
 
     # Validate required environment variables
-    [[ -z "${SERVER:-}" ]] && error "SERVER not set in .env"
-    [[ -z "${ZONE_NAME:-}" ]] && error "ZONE_NAME not set in .env"
-    # [[ -z "${RECORD_NAME:-}" ]] && error "RECORD_NAME not set in .env"
+    local -a required_vars=("SERVER" "ZONE_NAME")
+    local missing_vars=()
+
+    for var in "${required_vars[@]}"; do
+        if [[ -z "${!var:-}" ]]; then
+            missing_vars+=("$var")
+        fi
+    done
+
+    # Check for missing required variables
+    if [[ ${#missing_vars[@]} -gt 0 ]]; then
+        error "Missing required variables in .env file: ${missing_vars[*]}"
+    fi
 
     # Validate authentication method
     if [[ -z "${USER:-}" || -z "${PASSWORD:-}" ]] && [[ -z "${TSIG_KEYNAME:-}" || -z "${TSIG_KEY:-}" ]]; then
-        error "Either USER/PASSWORD or TSIG_KEYNAME/TSIG_KEY must be set"
+        error "Either USER/PASSWORD or TSIG_KEYNAME/TSIG_KEY must be set in .env file"
     fi
+
+    # Validate values if present
+    [[ -n "${RECORD_TTL:-}" ]] && [[ ! "${RECORD_TTL}" =~ ^[0-9]+$ ]] && \
+        error "RECORD_TTL must be a positive integer"
+
+    # Additional validation for specific record types
+    if [[ "${RECORD_TXT_PREFIX:-false}" == "true" ]]; then
+        [[ -z "${ISP_PREFIX_LENGHT:-}" ]] && \
+            error "ISP_PREFIX_LENGHT must be set when RECORD_TXT_PREFIX is true"
+        [[ ! "${ISP_PREFIX_LENGHT}" =~ ^[0-9]+$ ]] && \
+            error "ISP_PREFIX_LENGHT must be a positive integer"
+    fi
+
+    debug "Environment loaded successfully"
 }
 
 # Function to get current IPs
@@ -123,7 +136,6 @@ get_current_ips() {
         "v6.ident.me"
     )
 
-    # Try IPv4 providers
     for provider in "${ipv4_providers[@]}"; do
         local temp_ipv4
         temp_ipv4=$(curl -s4 --connect-timeout 5 "$provider" 2>/dev/null)
@@ -133,7 +145,6 @@ get_current_ips() {
         fi
     done
 
-    # Try IPv6 providers
     for provider in "${ipv6_providers[@]}"; do
         local temp_ipv6
         temp_ipv6=$(curl -s6 --connect-timeout 5 "$provider" 2>/dev/null)
@@ -143,7 +154,6 @@ get_current_ips() {
         fi
     done
 
-    # Only error if both stacks are unavailable
     if [[ -z "$ipv4" && -z "$ipv6" ]]; then
         error "Failed to get any IP addresses from providers"
     fi
@@ -151,7 +161,6 @@ get_current_ips() {
     echo "$ipv4:$ipv6"
 }
 
-# Function to get DNS records
 get_dns_records() {
     local record_type=$1
     local result
@@ -159,7 +168,6 @@ get_dns_records() {
     echo "$result"
 }
 
-# Function to get PTR record
 get_ptr_record() {
     local ip=$1
     local result
@@ -167,8 +175,6 @@ get_ptr_record() {
     echo "$result"
 }
 
-# Function to update FreeIPA DNS record
-# IMPORTANT! The records have to exists, since we are using the api call dnsrecord_mod.
 update_freeipa_record() {
     local record_type=$1
     local ip=$2
@@ -184,7 +190,6 @@ update_freeipa_record() {
         return
     fi
 
-    # Validate inputs
     [[ -z "$record_type" ]] && error "Record type cannot be empty"
     [[ -z "$ip" ]] && error "IP address cannot be empty"
 
@@ -229,7 +234,7 @@ update_freeipa_record() {
         ip="\\\"${ip}\\\""
     fi
 
-    # Now make the API call with the cookie
+    # Make the API call with the cookie
     curl_output=$(curl -s -k \
         -H "Accept: application/json" \
         -H "Content-Type: application/json" \
@@ -241,7 +246,6 @@ update_freeipa_record() {
         "https://${SERVER}/ipa/session/json" 2>&1)
     curl_exit_code=$?
 
-    # Cleanup cookie file
     rm -f "${cookie_file}"
 
     # Parse HTTP status code from last line
@@ -252,12 +256,10 @@ update_freeipa_record() {
     debug "Curl exit code: $curl_exit_code"
     debug "HTTP status code: $http_code"
 
-    # Check curl execution
     if [[ $curl_exit_code -ne 0 ]]; then
         error "Curl command failed with exit code $curl_exit_code: $data"
     fi
 
-    # Check HTTP status
     if [[ $http_code -ne 200 ]]; then
         error "HTTP request failed with status $http_code: $data"
     fi
@@ -273,7 +275,6 @@ update_freeipa_record() {
     debug "DNS record update completed successfully"
 }
 
-# Function to update nsupdate record
 update_nsupdate_record() {
     local record_type=$1
     local ip=$2
@@ -306,7 +307,6 @@ send
 EOF
 }
 
-# Main update function
 update_record() {
     local record_type=$1
     local current_ip=$2
@@ -329,47 +329,126 @@ update_record() {
     fi
 }
 
-# Main execution
+version_gt() {
+    test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
+}
+
+check_for_updates() {
+    local latest_version
+    local api_endpoint="${FORGEJO_API_URL}/api/v1/repos/${FORGEJO_ORG}/${FORGEJO_REPO}/releases/latest"
+
+    debug "Checking for updates from: $api_endpoint"
+
+    latest_version=$(curl -s "$api_endpoint" | jq -r '.tag_name' 2>/dev/null)
+
+    if [[ -z "$latest_version" ]]; then
+        error "Failed to fetch latest version information"
+    fi
+
+    debug "Current version: $CURRENT_VERSION"
+    debug "Latest version: $latest_version"
+
+    if version_gt "$latest_version" "$CURRENT_VERSION"; then
+        echo "Update available: $CURRENT_VERSION →  $latest_version"
+        return 0
+    else
+        echo "You are running the latest version ($CURRENT_VERSION)"
+        return 1
+    fi
+}
+
+perform_update() {
+    local latest_version
+    local api_endpoint="${FORGEJO_API_URL}/api/v1/repos/${FORGEJO_ORG}/${FORGEJO_REPO}/releases/latest"
+    local raw_download_url
+    local current_script_path
+    local temp_file
+
+    latest_version=$(curl -s "$api_endpoint" | jq -r '.tag_name' 2>/dev/null)
+    if [[ -z "$latest_version" ]]; then
+        error "Failed to get latest version information. Is the repo public?"
+    fi
+
+    raw_download_url="${FORGEJO_API_URL}/${FORGEJO_ORG}/${FORGEJO_REPO}/raw/tag/${latest_version}/dnsdrone.sh"
+
+    debug "Downloading from: $raw_download_url"
+
+    temp_file=$(mktemp)
+    current_script_path=$(realpath "$0")
+
+    echo "Downloading update..."
+    if ! curl -s -L "$raw_download_url" -o "$temp_file"; then
+        rm -f "$temp_file"
+        error "Failed to download update"
+    fi
+
+    if ! bash -n "$temp_file"; then
+        rm -f "$temp_file"
+        error "Downloaded file appears to be invalid"
+    fi
+
+    cp "$current_script_path" "${current_script_path}.backup"
+
+    if ! mv "$temp_file" "$current_script_path"; then
+        cp "${current_script_path}.backup" "$current_script_path"
+        rm -f "$temp_file"
+        error "Failed to install update"
+    fi
+
+    chmod +x "$current_script_path"
+
+    echo "Successfully updated to version $latest_version"
+    echo "Previous version backed up to ${current_script_path}.backup"
+    exit 0
+}
+
 main() {
-    # Process flags
-    while getopts "dn" opt; do
+    while getopts "dnac" opt; do
         case $opt in
             d) DEBUG=1 ;;
             n) DRY_RUN=1 ;;
+            a) AUTO_UPDATE=1 ;;
+            c) CHECK_UPDATE=1 ;;
             *) error "Invalid option: -$OPTARG" ;;
         esac
     done
 
+    if [[ $CHECK_UPDATE -eq 1 ]]; then
+        check_for_updates
+        exit $?
+    fi
+
+    if [[ $AUTO_UPDATE -eq 1 ]]; then
+        if check_for_updates; then
+            perform_update
+        fi
+    fi
+
     trap 'error "Script interrupted"' INT TERM
 
     check_dependencies
     load_env
 
-    # Construct the full domain name
     if [[ $RECORD_NAME = false ]]; then
         local FQDN="${ZONE_NAME}."
     else
         local FQDN="${RECORD_NAME}.${ZONE_NAME}."
     fi
 
-    # Get current IPs
     IFS=':' read -r current_ipv4 current_ipv6 <<< "$(get_current_ips)" || true
 
-    # Update A record if IPv4 is available
     if [[ -n "$current_ipv4" && "${RECORD_A:-false}" == "true" ]]; then
         update_record "A" "$current_ipv4"
     elif [[ "${RECORD_A:-false}" == "true" ]]; then
         debug "Skipping A record update - no IPv4 address available"
     fi
 
-    # Update AAAA record if IPv6 is available
     if [[ -n "$current_ipv6" && "${RECORD_AAAA:-false}" == "true" ]]; then
         update_record "AAAA" "$current_ipv6"
     elif [[ "${RECORD_AAAA:-false}" == "true" ]]; then
         debug "Skipping AAAA record update - no IPv6 address available"
     fi
 
-    # Check and update PTR records if configured and IP is available
     if [[ "${RECORD_PTR4:-false}" == "true" ]]; then
         if [[ -n "$current_ipv4" ]]; then
             debug "Processing PTR record for IPv4"
@@ -400,7 +479,6 @@ main() {
         fi
     fi
 
-    # Check for, and update TXT record with IPv6 prefix if IPv6 is available
     if [[ "${RECORD_TXT_PREFIX:-false}" == true ]]; then
         if [[ -n "$current_ipv6" ]]; then
             local expected_network_address expected_network_address_without_prefix current_network_address current_network_address_quotes