Cannot Sign the Document When document placed at Shared Folder #5497
Description
Describe the bug
the bug is signer cannot sign the document, and its only happend when document placed at a shared folder
To reproduce
The error only appears when the document is placed in a shared folder.
Say a Staff member named Foo shared a directory owned by Foo with a Staff member named Bar.
And then Bar uploads a PDF document to that directory. Next, the Bar guy creates a document sign request to other staff, say A, B, C, and D. The request is successfully created. But when Staff A, B, C, and D try to sign the document. It returns an error message 502 with this JSON captured from the file nextcloud.log
{
"reqId":"R1RwYrGJp2vojvz3FIgg",
"level":3,
"time":"2025-10-02T14:45:09+07:00",
"remoteAddr":"IP_REDACTED",
"user":"alfin",
"app":"libresign",
"method":"POST",
"url":"/ocs/v2.php/apps/libresign/api/v1/sign/uuid/1df2d19d-a90a-4aa4-826a-10844f790fcb",
"message":"OC\\Files\\View::basicOperation(): Argument #2 ($path) must be of type string, null given, called in /var/www/nextcloud/lib/private/Files/View.php on line 502",
"userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 Edg/138.0.0.0",
"version":"31.0.6.2",
"exception":{
"Exception":"TypeError",
"Message":"OC\\Files\\View::basicOperation(): Argument #2 ($path) must be of type string, null given, called in /var/www/nextcloud/lib/private/Files/View.php on line 502",
"Code":0,
"Trace":[
{
"file":"/var/www/nextcloud/lib/private/Files/View.php",
"line":502,
"function":"basicOperation",
"class":"OC\\Files\\View",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Files/Filesystem.php",
"line":516,
"function":"file_exists",
"class":"OC\\Files\\View",
"type":"->"
},
{
"file":"/var/www/nextcloud/apps/files_versions/lib/Storage.php",
"line":161,
"function":"file_exists",
"class":"OC\\Files\\Filesystem",
"type":"::"
},
{
"file":"/var/www/nextcloud/apps/files_versions/lib/Listener/FileEventsListener.php",
"line":174,
"function":"store",
"class":"OCA\\Files_Versions\\Storage",
"type":"::"
},
{
"file":"/var/www/nextcloud/apps/files_versions/lib/Listener/FileEventsListener.php",
"line":80,
"function":"write_hook",
"class":"OCA\\Files_Versions\\Listener\\FileEventsListener",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php",
"line":68,
"function":"handle",
"class":"OCA\\Files_Versions\\Listener\\FileEventsListener",
"type":"->"
},
{
"file":"/var/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php",
"line":220,
"function":"__invoke",
"class":"OC\\EventDispatcher\\ServiceEventListener",
"type":"->"
},
{
"file":"/var/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php",
"line":56,
"function":"callListeners",
"class":"Symfony\\Component\\EventDispatcher\\EventDispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php",
"line":67,
"function":"dispatch",
"class":"Symfony\\Component\\EventDispatcher\\EventDispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php",
"line":79,
"function":"dispatch",
"class":"OC\\EventDispatcher\\EventDispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Files/Node/HookConnector.php",
"line":74,
"function":"dispatchTyped",
"class":"OC\\EventDispatcher\\EventDispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/legacy/OC_Hook.php",
"line":85,
"function":"write",
"class":"OC\\Files\\Node\\HookConnector",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Files/View.php",
"line":1322,
"function":"emit",
"class":"OC_Hook",
"type":"::"
},
{
"file":"/var/www/nextcloud/lib/private/Files/View.php",
"line":1194,
"function":"runHooks",
"class":"OC\\Files\\View",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Files/View.php",
"line":654,
"function":"basicOperation",
"class":"OC\\Files\\View",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Files/Node/File.php",
"line":52,
"function":"file_put_contents",
"class":"OC\\Files\\View",
"type":"->"
},
{
"file":"/var/www/nextcloud/apps/libresign/lib/Handler/SignEngine/Pkcs12Handler.php",
"line":403,
"function":"putContent",
"class":"OC\\Files\\Node\\File",
"type":"->"
},
{
"file":"/var/www/nextcloud/apps/libresign/lib/Service/SignFileService.php",
"line":336,
"function":"sign",
"class":"OCA\\Libresign\\Handler\\SignEngine\\Pkcs12Handler",
"type":"->"
},
{
"file":"/var/www/nextcloud/apps/libresign/lib/Controller/SignFileController.php",
"line":133,
"function":"sign",
"class":"OCA\\Libresign\\Service\\SignFileService",
"type":"->"
},
{
"file":"/var/www/nextcloud/apps/libresign/lib/Controller/SignFileController.php",
"line":95,
"function":"sign",
"class":"OCA\\Libresign\\Controller\\SignFileController",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
"line":200,
"function":"signUsingUuid",
"class":"OCA\\Libresign\\Controller\\SignFileController",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
"line":114,
"function":"executeController",
"class":"OC\\AppFramework\\Http\\Dispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/AppFramework/App.php",
"line":161,
"function":"dispatch",
"class":"OC\\AppFramework\\Http\\Dispatcher",
"type":"->"
},
{
"file":"/var/www/nextcloud/lib/private/Route/Router.php",
"line":307,
"function":"main",
"class":"OC\\AppFramework\\App",
"type":"::"
},
{
"file":"/var/www/nextcloud/ocs/v1.php",
"line":49,
"function":"match",
"class":"OC\\Route\\Router",
"type":"->"
},
{
"file":"/var/www/nextcloud/ocs/v2.php",
"line":7,
"args":[
"/var/www/nextcloud/ocs/v1.php"
],
"function":"require_once"
}
],
"File":"/var/www/nextcloud/lib/private/Files/View.php",
"Line":1178,
"message":"OC\\Files\\View::basicOperation(): Argument #2 ($path) must be of type string, null given, called in /var/www/nextcloud/lib/private/Files/View.php on line 502",
"exception":{
},
"CustomMessage":"OC\\Files\\View::basicOperation(): Argument #2 ($path) must be of type string, null given, called in /var/www/nextcloud/lib/private/Files/View.php on line 502"
}
}
Expected behavior
expected behavior the signer can sign the document with no problem
Screenshots
Environment information
- OS: Debian 9.13
- Apache: 2.4.62
- PHP: 8.3.16
- Nextcloud: 31.0.6
- MySQL: 5.7.44
- LibreSign: 11.2.4
- Docker: 19.03.5
Additional context
No response