Error when signing

[kevinbrown1980]

I installed the app then followed the steps in the terminal.

When trying to sign a pdf document I add the document, add an email address and send it for signing and I get the below error

count(): Argument #1 ($value) must be of type Countable|array, null given

Environment information

• OS: Docker
• Nextcloud AIO

[inhji]

I can confirm, getting the same error when trying to send a request.

OS: Ubuntu 20.04
Nextcloud: 23

I've set up LibreSign with the libresign:install and libresign:configure commands, not using docker.

{
  "reqId": "Nc6283MRMexy075FuRjg",
  "level": 2,
  "time": "2022-06-13T12:42:15+00:00",
  "remoteAddr": "xx.xx.xx.xx",
  "user": "admin",
  "app": "no app in context",
  "method": "GET",
  "url": "/index.php/core/preview.png?file=%2FreturnsLabelGroup_20220530090532.pdf&x=100&y=100",
  "message": "Host xx.xx.xx.xx was not connected to because it violates local access rules",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0",
  "version": "23.0.3.2"
}

  "reqId": "OTXe2qqIXsrLFJ2rU60N",
  "level": 3,
  "time": "2022-06-13T12:42:37+00:00",
  "remoteAddr": "xx.xx.xx.xx",
  "user": "admin",
  "app": "PHP",
  "method": "POST",
  "url": "/index.php/apps/libresign/api/0.1/sign/register",
  "message": "Trying to access array offset on value of type null at /var/www/html/apps/libresign/lib/Service/PdfParserService.php#39",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0",
  "version": "23.0.3.2",
  "exception": {
    "Exception": "Error",
    "Message": "Trying to access array offset on value of type null at /var/www/html/apps/libresign/lib/Service/PdfParserService.php#39",
    "Code": 0,
    "Trace": [
      {
        "file": "/var/www/html/apps/libresign/lib/Service/PdfParserService.php",
        "line": 39,
        "function": "onError",
        "class": "OC\\Log\\ErrorHandler",
        "type": "::"
      },
      {
        "file": "/var/www/html/apps/libresign/lib/Service/SignFileService.php",
        "line": 240,
        "function": "getMetadata",
        "class": "OCA\\Libresign\\Service\\PdfParserService",
        "type": "->"
      },
      {
        "file": "/var/www/html/apps/libresign/lib/Service/SignFileService.php",
        "line": 222,
        "function": "getFileMetadata",
        "class": "OCA\\Libresign\\Service\\SignFileService",
        "type": "->"
      },
      {
        "file": "/var/www/html/apps/libresign/lib/Service/SignFileService.php",
        "line": 172,
        "function": "saveFile",
        "class": "OCA\\Libresign\\Service\\SignFileService",
        "type": "->"
      },
      {
        "file": "/var/www/html/apps/libresign/lib/Controller/SignFileController.php",
        "line": 88,
        "function": "save",
        "class": "OCA\\Libresign\\Service\\SignFileService",
        "type": "->"
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 217,
        "function": "requestSign",
        "class": "OCA\\Libresign\\Controller\\SignFileController",
        "type": "->"
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 126,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/App.php",
        "line": 157,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/var/www/html/lib/private/Route/Router.php",
        "line": 302,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::"
      },
      {
        "file": "/var/www/html/lib/base.php",
        "line": 1006,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->"
      },
      {
        "file": "/var/www/html/index.php",
        "line": 36,
        "function": "handleRequest",
        "class": "OC",
        "type": "::"
      }
    ],
    "File": "/var/www/html/lib/private/Log/ErrorHandler.php",
    "Line": 92,
    "CustomMessage": "--"
  }
}

[inhji]

I did some testing, and updated my installation to nextcloud 24.0.1, reinstalled the cfssl, java, Jsignpdf and libresign-cli.
I also verified, that LibreSign app was updated to 5.1.1.
Still getting the same error when creating a request and trying to send it to somebody.

Unfortunately I don't know how to check the installed version of libresign-cli. Is there a way to check that?

[inhji]

I realized that I had not setup email delivery, after doing so, the error still persists. Anything else I could check?

If you need additional information, I'd be happy to help.

Thanks!

[vitormattos]

Update the LibreSign to the newest version, this problem was solved in version 5.1.2, the newest version is 5.1.3

[inhji]

I have updated LibreSign to the version 5.1.4. I have also reinstalled JSignPDF with the commands:

occ libresign:uninstall --jsignpdf
occ libresign:install --jsignpdf

When I upload a pdf, I get this message (apparently added in #879):

Impossible get metadata from this file. Check if you installed correctly the libresign-cli.