security/acme-client: add support for Technitium DNS API

security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml

@@ -2022,4 +2022,21 @@
         <label>API Key</label>
         <type>text</type>
     </field>
+    <field>
+        <label>Technitium</label>
+        <type>header</type>
+        <style>table_dns table_dns_technitium</style>
+    </field>
+    <field>
+        <id>validation.dns_technitium_token</id>
+        <label>API Token</label>
+        <type>password</type>
+        <help><![CDATA[Generate a token from Technitium user and grant rights to the necessary zones.]]></help>
+    </field>
+    <field>
+        <id>validation.dns_technitium_hostname</id>
+        <label>Server URL</label>
+        <type>text</type>
+        <help><![CDATA[The full server URL, for example https://technitium:5380. The port number is optional.<br/><div class="text-info"><b>NOTE: </b>Remove the trailing / if it is present.</div>]]></help>
+    </field>
 </form>

security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeValidation/DnsTechnitium.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * Copyright (C) 2025 sourceforge807
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+namespace OPNsense\AcmeClient\LeValidation;
+
+use OPNsense\AcmeClient\LeValidationInterface;
+use OPNsense\Core\Config;
+
+/**
+ * Technitium DNS API
+ * @package OPNsense\AcmeClient
+ */
+class DnsTechnitium extends Base implements LeValidationInterface
+{
+    public function prepare()
+    {
+        $this->acme_env['Technitium_Token'] = (string)$this->config->dns_technitium_token;
+        $this->acme_env['Technitium_Server'] = (string)$this->config->dns_technitium_hostname;
+    }
+}

security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml

@@ -521,6 +521,7 @@
                         <dns_selfhost>Selfhost</dns_selfhost>
                         <dns_servercow>Servercow</dns_servercow>
                         <dns_simply>Simply.com</dns_simply>
+                        <dns_technitium>Technitium</dns_technitium>
                         <dns_transip>Transip</dns_transip>
                         <dns_udr>united-domains Reselling</dns_udr>
                         <dns_unoeuro>UnoEuro</dns_unoeuro>
@@ -1100,6 +1101,12 @@
                 <dns_simply_account_name type="TextField">
                     <Required>N</Required>
                 </dns_simply_account_name>
+                <dns_technitium_token type="TextField">
+                    <Required>N</Required>
+                </dns_technitium_token>
+                <dns_technitium_hostname type="TextField">
+                    <Required>N</Required>
+                </dns_technitium_hostname>
                 <dns_transip_username type="TextField">
                     <Required>N</Required>
                 </dns_transip_username>