feat(field): hostname field

this field picks the hostname using its IP address

Signed-off-by: btry <[email protected]>

inc/fields/hostnamefield.class.php

@@ -0,0 +1,43 @@
+<?php
+class PluginFormcreatorHostnameField extends PluginFormcreatorField
+{
+   public function show($canEdit = true) {
+      if ($canEdit) {
+         $hostname = gethostbyaddr(Toolbox::getRemoteIpAddress());
+         echo '<input type="hidden" class="form-control"
+            name="formcreator_field_' . $this->fields['id'] . '"
+            id="formcreator_field_' . $this->fields['id'] . '"
+            value="' . $hostname . '" />' . PHP_EOL;
+      } else {
+         parent::show($canEdit);
+      }
+   }
+
+   public function isValid($value) {
+      return true;
+   }
+
+   public static function getName() {
+      return _n('Hostname', 'Hostname', 1);
+   }
+
+   public static function getPrefs() {
+      return [
+         'required'       => 0,
+         'default_values' => 0,
+         'values'         => 0,
+         'range'          => 0,
+         'show_empty'     => 0,
+         'regex'          => 0,
+         'show_type'      => 0,
+         'dropdown_value' => 0,
+         'glpi_objects'   => 0,
+         'ldap_values'    => 0,
+      ];
+   }
+
+   public static function getJSFields() {
+      $prefs = self::getPrefs();
+      return "tab_fields_fields['hostname'] = 'showFields(" . implode(', ', $prefs) . ");';";
+   }
+}