add and check plugin base class

2 files changed, 12 insertions, 1 deletions

diff --git a/classes/plugin.php b/classes/plugin.php
new file mode 100644
index 000000000..59cb64f53
--- /dev/null
+++ b/classes/plugin.php
@@ -0,0 +1,11 @@
+<?php
+class Plugin {
+	private $link;
+	private $host;
+
+	function __construct($host) {
+		$this->link = $host->get_link();
+		$this->host = $host;
+	}
+}
+?>
diff --git a/classes/pluginhost.php b/classes/pluginhost.php
index 4274ec37b..f4e01178b 100644
--- a/classes/pluginhost.php
+++ b/classes/pluginhost.php
@@ -59,7 +59,7 @@ class PluginHost {
 
 			if (file_exists($file)) require_once $file;
 
-			if (class_exists($class)) {
+			if (class_exists($class) && is_subclass_of($class, "Plugin")) {
 				$plugin = new $class($this);
 
 				$this->register_plugin($class, $plugin);