No text edition/display, nor Readme.md content. Error 500 on PUT /apps/text/session/create

[itcihef]

Describe the bug

• TXT and MD files can't be opened or displayed, I only get an empty screen.

• Readme.md is not shown in folder view, there's just a hypno wheel.

I upgraded Nextcloud from 2.2.10 (when it worked) to 23.0.12 then to 24.0.8. Nothing went wrong during upgrades. Apache conf wasn’t modified in the process. I didn’t check if it worked at version 23.0.12.

See apache log.

Don't have a clue what might have caused this. No chance to delete/reinstall this app because it's part of NC core and delivered with the core. Already tried disable/enable the app, didn't help.

To Reproduce
Steps to reproduce the behavior:

1. Go to any folder
2. Click on any .md oder .txt file

Expected behavior

• Open and edit .txt/.md files
• See the Readme.md content on top of every folder page.

Client details:

• OS: [e.g. iOS]
• Browser: [e.g. chrome, safari]
• Version: [e.g. 22]
• Device: [e.g. iPhone6, desktop]

Server details

Text app version:
3.5.1

Operating system: (uname -a)
Linux 5.10.0-19-amd64 #1 SMP Debian 5.10.149-2 (2022-10-21) x86_64 GNU/Linux

Web server:
Apache/2.4.54 (Debian)

Database:
10.5.18-MariaDB-0+deb11u1 Debian 11

PHP version:
PHP 7.4.33 (cli) (built: Nov 8 2022 11:36:34) ( NTS )

Nextcloud version:
24.0.8.2

Logs

Nextcloud log (data/nextcloud.log)

{
  "reqId": "Gmbz6NnoFwcPEhYDNvmC",
  "level": 3,
  "time": "2023-01-04T09:42:53+00:00",
  "remoteAddr": "my.public.ip.address",
  "user": "…-…-…-…-…",
  "app": "text",
  "method": "PUT",
  "url": "/apps/text/session/create",
  "message": "Could not create path",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0",
  "version": "24.0.8.2",
  "exception": {
    "Exception": "OCP\\Files\\NotPermittedException",
    "Message": "Could not create path",
    "Code": 0,
    "Trace": [
      {
        "file": "/var/www/nextcloud/lib/private/Files/SimpleFS/NewSimpleFile.php",
        "line": 133,
        "function": "newFile",
        "class": "OC\\Files\\Node\\Folder",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/text/lib/Service/DocumentService.php",
        "line": 148,
        "function": "putContent",
        "class": "OC\\Files\\SimpleFS\\NewSimpleFile",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/text/lib/Service/ApiService.php",
        "line": 102,
        "function": "createDocument",
        "class": "OCA\\Text\\Service\\DocumentService",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/text/lib/Controller/SessionController.php",
        "line": 72,
        "function": "create",
        "class": "OCA\\Text\\Service\\ApiService",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 225,
        "function": "create",
        "class": "OCA\\Text\\Controller\\SessionController",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 133,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/App.php",
        "line": 172,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/Route/Router.php",
        "line": 298,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::"
      },
      {
        "file": "/var/www/nextcloud/lib/base.php",
        "line": 1030,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/index.php",
        "line": 36,
        "function": "handleRequest",
        "class": "OC",
        "type": "::"
      }
    ],
    "File": "/var/www/nextcloud/lib/private/Files/Node/Folder.php",
    "Line": 195,
    "CustomMessage": "--"
  }
}

Apache2 log

"PUT /apps/text/session/create HTTP/1.1" 500 5604 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0"

[juliusknorr]

Could you check if your webserver has proper write permissions in the data/appdata_[instanceid]/text folder and its subdirectories?

[itcihef]

My data/appdata_[instanceid]/ content is: appstore avatar css dav-photocache identityproof js mail preview theming. text is absent. How can I add it?

[mejo-]

Dear @itcihef, what's the permissions of data/appdata_[instanceid]? Can your webserver (or PHP) user write to it?

[itcihef]

It is drwxr-xr-x 11 www-data www-data. Apache can write into it. I tried it out with sudo -u www-data touch data/appdata_[instanceid]/test

[mejo-]

Dear @itcihef, have you tried creating text inside data/appdata_[instanceid]/ and making sure the webserver has permissions to write to it? Did it solve your issue?

[itcihef]

Do you mean the directory text? Ok, I’ve done it and it reads drwxr-xr-x 2 www-data www-data 4096 14 févr. 11:12 text, it has the same owner and permission as the other directories on the same level (for instance appstore mail preview theming).

Still, the problem remains. I create a .md file in my personal folder through the web interface, the site tries to open it for edition but I only see that:

• the name of the file on top, let’s say test.md
• the … and the × buttons on the same line
• black and blank page below
• … and the same Error 500

Since the text folder was empty, I also created the text/session folder, and this time the right activity/comment/share…-panel appears. But still "Failed to create the document session" as request answer.

Is still something missing in the text directory? If so, why did it disappear? How can I recreate it so everything works?

[mejo-]

@itcihef there should be a documents folder below appdata_<instance-id>/text/. Maybe you can create that one and see whether it helps?

I have no idea why the folders got removed in the first place on your instance to be honest.

[itcihef]

With text/documents created, it works. Neither do I know what could have caused their deletion. Thank you very much for your help!