From f9e2db906968bbf856af37be3c2ed75e51647e8f Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Mon, 15 Oct 2012 04:13:24 +0200
Subject: [PATCH] Removes all cache files after package uninstallation

Fixes #661
---
 .../system/application/IApplication.class.php   |  5 +++++
 .../PackageUninstallationDispatcher.class.php   | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/application/IApplication.class.php b/wcfsetup/install/files/lib/system/application/IApplication.class.php
index 74f4d3537c..bdd37a5d01 100644
--- a/wcfsetup/install/files/lib/system/application/IApplication.class.php
+++ b/wcfsetup/install/files/lib/system/application/IApplication.class.php
@@ -20,4 +20,9 @@ interface IApplication {
 	 * @return	mixed
 	 */
 	public static function __callStatic($method, array $arguments);
+	
+	/**
+	 * Forces a reset of all application's cache files.
+	 */
+	public function resetCache();
 }
diff --git a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
index a082f38474..4f26a678a5 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
@@ -1,5 +1,7 @@
 <?php
 namespace wcf\system\package;
+use wcf\system\application\ApplicationHandler;
+
 use wcf\data\option\OptionEditor;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\Package;
@@ -67,6 +69,21 @@ class PackageUninstallationDispatcher extends PackageInstallationDispatcher {
 		// update options.inc.php if uninstallation is completed
 		if ($node == '') {
 			OptionEditor::resetCache();
+			
+			// force removal of all cache files
+			if (PACKAGE_ID) {
+				// WCF cache
+				CacheHandler::getInstance()->clear(WCF_DIR.'cache/', 'cache.*.php');
+				
+				// remove application's cache
+				if (PACKAGE_ID != 1) {
+					ApplicationHandler::getInstance()->getPrimaryApplication()->resetCache();
+					
+					foreach (ApplicationHandler::getInstance()->getDependentApplications() as $application) {
+						$application->resetCache();
+					}
+				}
+			}
 		}
 		
 		// return next node
-- 
2.20.1