Disable app that bricks the server after enabling

If an app is getting enabled in the web UI, an ajax call is now made to
make sure the server still works. If it doesn't, it sends an emergency
app disabling call to disable the breaking app.

1 files changed, 18 insertions, 2 deletions

diff --git a/lib/base.php b/lib/base.php
index df4e91dda9f..31d96666985 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -823,12 +823,28 @@ class OC {
 			exit();
 		}
 
-		$request = \OC::$server->getRequest()->getPathInfo();
-		if (substr($request, -3) !== '.js') { // we need these files during the upgrade
+		$request = \OC::$server->getRequest();
+		$requestPath = $request->getPathInfo();
+		if (substr($requestPath, -3) !== '.js') { // we need these files during the upgrade
 			self::checkMaintenanceMode();
 			self::checkUpgrade();
 		}
 
+		// emergency app disabling
+		if ($requestPath === '/disableapp'
+			&& $request->getMethod() === 'POST'
+			&& ((string)$request->getParam('appid')) !== ''
+		) {
+			\OCP\JSON::callCheck();
+			\OCP\JSON::checkAdminUser();
+			$appId = (string)$request->getParam('appid');
+			$appId = \OC_App::cleanAppId($appId);
+
+			\OC_App::disable($appId);
+			\OC_JSON::success();
+			exit();
+		}
+
 		// Always load authentication apps
 		OC_App::loadApps(['authentication']);