From d2a421e3cbaa782748840fc19afad4ac65f044b8 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Tue, 25 Dec 2012 10:02:08 +0400
Subject: more work on user-selectable plugins; properly process system and
 user plugins

---
 classes/plugin.php     | 15 ++++++++++++++-
 classes/pluginhost.php | 42 +++++++++++++++++++++++++++++-------------
 classes/pref/prefs.php |  6 +++---
 3 files changed, 46 insertions(+), 17 deletions(-)

(limited to 'classes')

diff --git a/classes/plugin.php b/classes/plugin.php
index 59cb64f53..e655a2062 100644
--- a/classes/plugin.php
+++ b/classes/plugin.php
@@ -3,9 +3,22 @@ class Plugin {
 	private $link;
 	private $host;
 
-	function __construct($host) {
+	function init($host) {
 		$this->link = $host->get_link();
 		$this->host = $host;
 	}
+
+	function about() {
+		// version, name, description, author, is_system
+		return array(1.0, "plugin", "No description", "No author", false);
+	}
+
+	function get_js() {
+		return "";
+	}
+
+	function get_prefs_js() {
+		return "";
+	}
 }
 ?>
diff --git a/classes/pluginhost.php b/classes/pluginhost.php
index d8df6db49..ee56886f4 100644
--- a/classes/pluginhost.php
+++ b/classes/pluginhost.php
@@ -14,6 +14,10 @@ class PluginHost {
 	const HOOK_FEED_PARSED = 6;
 	const HOOK_UPDATE_TASK = 7;
 
+	const KIND_ALL = 1;
+	const KIND_SYSTEM = 2;
+	const KIND_USER = 3;
+
 	function __construct($link) {
 		$this->link = $link;
 	}
@@ -65,12 +69,12 @@ class PluginHost {
 			return array();
 		}
 	}
-	function load_all() {
+	function load_all($kind) {
 		$plugins = array_map("basename", glob("plugins/*"));
-		$this->load(join(",", $plugins));
+		$this->load(join(",", $plugins), $kind);
 	}
 
-	function load($classlist) {
+	function load($classlist, $kind) {
 		$plugins = explode(",", $classlist);
 
 		foreach ($plugins as $class) {
@@ -84,14 +88,31 @@ class PluginHost {
 				if (class_exists($class) && is_subclass_of($class, "Plugin")) {
 					$plugin = new $class($this);
 
-					$this->register_plugin($class, $plugin);
+					switch ($kind) {
+					case $this::KIND_SYSTEM:
+						if ($this->is_system($plugin)) {
+							$plugin->init($this);
+							$this->register_plugin($class, $plugin);
+						}
+						break;
+					case $this::KIND_USER:
+						if (!$this->is_system($plugin)) {
+							$plugin->init($this);
+							$this->register_plugin($class, $plugin);
+						}
+						break;
+					case $this::KIND_ALL:
+						$plugin->init($this);
+						$this->register_plugin($class, $plugin);
+						break;
+					}
 				}
 			}
 		}
 	}
 
 	function is_system($plugin) {
-		$about = $plugin->_about();
+		$about = $plugin->about();
 
 		return @$about[3];
 	}
@@ -134,22 +155,17 @@ class PluginHost {
 		return false;
 	}
 
-	// only system plugins are allowed to modify commands
 	function add_command($command, $description, $sender) {
 		$command = "-" . str_replace("-", "_", strtolower($command));
 
-		if ($this->is_system($sender)) {
-			$this->commands[$command] = array("description" => $description,
-				"class" => $sender);
-		}
+		$this->commands[$command] = array("description" => $description,
+			"class" => $sender);
 	}
 
 	function del_command($command) {
 		$command = "-" . strtolower($command);
 
-		if ($this->is_system($sender)) {
-			unset($this->commands[$command]);
-		}
+		unset($this->commands[$command]);
 	}
 
 	function lookup_command($command) {
diff --git a/classes/pref/prefs.php b/classes/pref/prefs.php
index bb1b44ece..ce17af278 100644
--- a/classes/pref/prefs.php
+++ b/classes/pref/prefs.php
@@ -670,10 +670,10 @@ class Pref_Prefs extends Handler_Protected {
 		$user_enabled = array_map("trim", explode(",", get_pref($this->link, "_ENABLED_PLUGINS")));
 
 		$tmppluginhost = new PluginHost($link);
-		$tmppluginhost->load_all();
+		$tmppluginhost->load_all($tmppluginhost::KIND_ALL);
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
-			$about = $plugin->_about();
+			$about = $plugin->about();
 
 			if ($about[3]) {
 				if (in_array($name, $system_enabled)) {
@@ -709,7 +709,7 @@ class Pref_Prefs extends Handler_Protected {
 
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
-			$about = $plugin->_about();
+			$about = $plugin->about();
 
 			if (!$about[3]) {
 
-- 
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