How to know the script is password protected in the assignment view all submission page?
How to know the script is password protected at the time of upload assignment submission?
By opening the file it's not converted and giving password protected, for the lecturers it's time taking process to get into individual students and check so we need to add the script status like password protected please advise.
I'm not sure if I completely understand what you're asking, but it sounds like students are uploading password-protected files as assignment submissions, and you want to be able to detect that? It's hard to imagine how Moodle would be able to do that, since the password protection will be implemented in the software that creates and opens the file. Moodle just sees a file as a blob of data, with some metadata like filename and size.
The only possible way I could think to detect this would be using an antivirus or fileconverter plugin that passes the files through some external tool that detects whether they're password-protected. I don't know if such a tool exists, though.
Would it be possible to modify the code to add a FileReader functionality to the page where a student uploads their assignment so that it reads the file and checks if there is a password on the pdf and then display an error message to the student stating the file is protected please remove the password and try again. This can be executed either on the "Save Changes" button or when the student chooses the file and clicks on "Upload this file".
This in theory would prevent a student from uploading protected files
