Resolves #406

app/config/routes.php

@@ -145,6 +145,7 @@ return [
     array('/admin/media/overlay/alpha', 'POST', 'admin@save_overlay_alpha'),
     array('/admin/media/sound/message', 'POST', 'admin@upload_media_sound_message'),
     array('/admin/mail/save', 'POST', 'admin@save_mail_settings'),
+    array('/admin/mail/test', 'ANY', 'admin@send_test_email'),
     array('/admin/themes/import', 'POST', 'admin@import_theme'),
     array('/admin/themes/remove', 'POST', 'admin@remove_theme'),
     array('/admin/backup/cronjob/save', 'POST', 'admin@save_backup_cronjob_settings'),

app/controller/admin.php

@@ -782,6 +782,35 @@ class AdminController extends BaseController {
 		}
 	}
 
+	/**
+	 * Handles URL: /admin/mail/test
+	 * 
+	 * @param Asatru\Controller\ControllerArg $request
+	 * @return Asatru\View\JsonHandler
+	 */
+	public function send_test_email($request)
+	{
+		try {
+			$user = UserModel::getAuthUser();
+
+			$mailobj = new Asatru\SMTPMailer\SMTPMailer();
+			$mailobj->setRecipient($user->get('email'));
+			$mailobj->setSubject('[' . env('APP_NAME') . '] Test E-Mail');
+			$mailobj->setView('mail/mail_layout', [['mail_content', 'mail/mail_admintest']], ['user' => $user]);
+			$mailobj->setProperties(mail_properties());
+			$mailobj->send();
+
+			return json([
+				'code' => 200
+			]);
+		} catch (\Exception $e) {
+			return json([
+				'code' => 500,
+				'msg' => $e->getMessage()
+			]);
+		}
+	}
+
 	/**
 	 * Handles URL: /admin/cronjob/token
 	 * 

app/lang/en/app.php

@@ -484,5 +484,7 @@ return [
 	'confirm_set_gallery_photo_as_main' => 'Do you want to replace the main photo with this one?',
 	'enable_quick_add' => 'Enable Quick-Add widget',
 	'clear_cache' => 'Clear cache',
-	'schema_attribute_already_exists' => 'There is already an attribute with the given label'
+	'schema_attribute_already_exists' => 'There is already an attribute with the given label',
+	'send_test_mail' => 'Send test mail',
+	'confirm_test_mail' => 'Do you want to send a test e-mail to {mail}?'
 ];

app/resources/js/app.js

@@ -96,6 +96,7 @@ window.vue = new Vue({
         loadMore: 'Load more',
         operationSucceeded: 'Operation succeeded',
         copiedToClipboard: 'Content has been copied to clipboard.',
+        origTestMailButtonContent: '',
         chatTypingEnable: false,
         chatTypingTimer: null,
         chatTypingHide: null,
@@ -1937,6 +1938,22 @@ window.vue = new Vue({
             });
         },
 
+        sendTestMail: function(button) {
+            if (window.vue.origTestMailButtonContent === '') {
+                window.vue.origTestMailButtonContent = button.innerHTML;
+            }
+
+            button.innerHTML = '<i class="fas fa-spinner fa-spin"></i>&nbsp;' + window.vue.origTestMailButtonContent;
+
+            window.vue.ajaxRequest('post', window.location.origin + '/admin/mail/test', {}, function(response) {
+                if (response.code == 200) {
+                    button.innerHTML = '<i class="fas fa-check"></i>&nbsp;' + window.vue.origTestMailButtonContent;
+                } else {
+                    alert(response.msg);
+                }
+            });
+        },
+
         scrollTo: function(target) {
             let elem = document.querySelector(target);
             if (elem) {

app/views/admin.php

@@ -695,7 +695,10 @@
 
         <div class="field">
             <div class="control">
-                <input type="submit" class="button is-success" value="{{ __('app.save') }}"/>
+                <span>
+                    <input type="submit" class="button is-success" value="{{ __('app.save') }}"/>&nbsp;
+                    <a class="button is-warning" href="javascript:void(0);" onclick="if (confirm('{{ __('app.confirm_test_mail', ['mail' => $user->get('email')]) }}')) { window.vue.sendTestMail(this); } return false;">{{ __('app.send_test_mail') }}</a>
+                </span>
             </div>
         </div>
     </form>

app/views/mail/mail_admintest.php

@@ -0,0 +1,9 @@
+<h1>{{ app('workspace') }}</h1>
+
+<p>
+    {{ __('app.hortusfox_version', ['version' => config('version')]) }}<br/>
+    {{ __('app.php_version', ['version' => phpversion()]) }}<br/>
+    {{ __('app.mysql_version', ['version' => VersionModel::getSqlVersion()]) }}<br/>
+    {{ __('app.server_system_info', ['osn' => php_uname('s'), 'osv' => php_uname('v'), 'mt' => php_uname('m')]) }}<br/>
+    {{ __('app.server_timezone', ['time' => date('Y-m-d H:i') . ' (' . date_default_timezone_get() . ')']) }}<br/>
+</p>