plugin: Add Multi-instance Support

This commit adds multi-instance support for plugins

Author: protich

bootstrap.php

@@ -133,6 +133,7 @@ static function defineTables($prefix) {
         define('FILTER_ACTION_TABLE', $prefix.'filter_action');
 
         define('PLUGIN_TABLE', $prefix.'plugin');
+        define('PLUGIN_INSTANCE_TABLE', $prefix.'plugin_instance');
         define('SEQUENCE_TABLE', $prefix.'sequence');
         define('TRANSLATION_TABLE', $prefix.'translation');
         define('QUEUE_TABLE', $prefix.'queue');

include/ajax.plugins.php

@@ -0,0 +1,62 @@
+<?php
+require_once(INCLUDE_DIR . 'class.plugin.php');
+
+class PluginsAjaxAPI extends AjaxController {
+
+    /*
+     * Protect all routines in this controller
+     */
+    function access() {
+        global $thisstaff;
+        if (!$thisstaff || !$thisstaff->isAdmin())
+             Http::response(403, 'Access Denied');
+
+        return true;
+    }
+
+    // helper func to look up plugin & instance
+    private function lookup($plugin_id, $instance_id=0) {
+        if (!($plugin = PluginManager::lookup( (int) $plugin_id)))
+            Http::response(404, 'No such plugin');
+
+        if ($instance_id && !($instance = $plugin->getInstance( (int) $instance_id)))
+            Http::response(404, 'No such plugin instance');
+
+        return [$plugin, $instance];
+    }
+
+    function getInstances($plugin_id) {
+        list($plugin,)= $this->lookup($plugin_id);
+        $pjax_container = '#items';
+        include(STAFFINC_DIR . 'templates/plugin-instances.tmpl.php');
+    }
+
+    function updateInstance($plugin_id, $instance_id) {
+        list($plugin, $instance) = $this->lookup($plugin_id, $instance_id);
+        $errors = array();
+        if ($_POST && $instance->update($_POST, $errors))
+            Http::response(201, $this->encode([
+                'redirect' => sprintf('plugins.php?id=%d#instances',
+                    $plugin->getId())
+            ]));
+        $form = $instance->getForm();
+        $action = "#plugins/{$plugin->getId()}/instances/{$instance->getId()}/update";
+        include STAFFINC_DIR . 'templates/plugin-instance-modal.tmpl.php';
+    }
+
+    function addInstance($plugin_id) {
+        list($plugin,) = $this->lookup($plugin_id);
+        $errors = array();
+        if ($_POST  && ($instance=$plugin->addInstance($_POST, $errors)))
+            Http::response(201, $this->encode([
+                'redirect' => sprintf('plugins.php?id=%d#instances',
+                    $plugin->getId())
+            ]));
+        // This should return cached form with errors (if any)
+        $form = $plugin->getConfigForm();
+        // Set action
+        $action = "#plugins/{$plugin->getId()}/instances/add";
+        include(STAFFINC_DIR . 'templates/plugin-instance-modal.tmpl.php');
+    }
+}
+?>

include/class.osticket.php

@@ -640,7 +640,9 @@ static function start() {
             return null;
 
         // Bootstrap installed plugins
-        $ost->plugins->bootstrap();
+        //XXX: This is TEMP for v1.17
+        if (!$ost->isUpgradePending())
+            $ost->plugins->bootstrap();
 
         // Mirror content updates to the search backend
         $ost->searcher = new SearchInterface();