add the possibility to use independend classes in plugins

bl-kernel/abstract/PluginInterface.php

@@ -0,0 +1,79 @@
+<?php
+
+interface PluginInterface
+{
+    public function save();
+
+    public function includeCSS($filename);
+
+    public function includeJS($filename);
+
+    public function domainPath();
+
+    public function htmlPath();
+
+    public function phpPath();
+
+    public function phpPathDB();
+
+    public function getMetadata($key);
+
+    public function setMetadata($key, $value);
+
+    public function getValue($field, $html = true);
+
+    public function label();
+
+    public function name();
+
+    public function description();
+
+    public function author();
+
+    public function email();
+
+    public function type();
+
+    public function website();
+
+    public function position();
+
+    public function version();
+
+    public function releaseDate();
+
+    public function className();
+
+    public function formButtons();
+
+    public function isCompatible();
+
+    public function directoryName();
+
+    public function install($position = 1);
+
+    public function uninstall();
+
+    /**
+     * Returns True if the plugin is installed
+     *
+     * @return boolean
+     */
+    public function installed(): bool;
+
+    public function workspace();
+
+    public function init();
+
+    public function prepare();
+
+    public function post();
+
+    public function configure($args);
+
+    public function setField($field, $value);
+
+    public function setPosition($position);
+
+    public function webhook($URI = false, $returnsAfterURI = false, $fixed = true);
+}

bl-kernel/abstract/plugin.class.php

@@ -1,6 +1,7 @@
 <?php defined('BLUDIT') or die('Bludit CMS.');
 
-class Plugin {
+class Plugin implements PluginInterface
+{
 
 	// (string) directory name, just the name
 	// Ex: sitemap

bl-kernel/boot/init.php

@@ -70,11 +70,15 @@ mb_internal_encoding(CHARSET);
 // Set HTTP output character encoding
 mb_http_output(CHARSET);
 
+// Include interfaces
+include(PATH_ABSTRACT.'PluginInterface.php');
+
 // Inclde Abstract Classes
 include(PATH_ABSTRACT.'dbjson.class.php');
 include(PATH_ABSTRACT.'dblist.class.php');
 include(PATH_ABSTRACT.'plugin.class.php');
 
+
 // Inclde Classes
 include(PATH_KERNEL.'pages.class.php');
 include(PATH_KERNEL.'users.class.php');

bl-kernel/boot/rules/60.plugins.php

@@ -78,6 +78,12 @@ function buildPlugins()
 	$pluginsDeclaredClasess = array_diff(get_declared_classes(), $currentDeclaredClasess);
 
 	foreach ($pluginsDeclaredClasess as $pluginClass) {
+
+        $reflect = new ReflectionClass($pluginClass);
+        if(!$reflect->implementsInterface('PluginInterface')){
+            continue;
+        }
+
 		$Plugin = new $pluginClass;
 
 		// Check if the plugin is translated