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Ubuntu – subprocess.run not executing commands when python called from php

I have this part of a php program:

$docx_filename = "/var/www/editeur/docx/".$file1
$command5 = "python3 conv_docx_pdf.py "$docx_filename"";
$output = shell_exec($command5);

The script conv_docx_pdf.py:

import subprocess
import os
import sys

def docx_to_pdf(input_file):
    # Get the file name without extension
    file_name, _ = os.path.splitext(input_file)
    
    # Construct the output file path with .pdf extension
    output_file = file_name + ".pdf"
    
    # Run unoconv to convert DOCX to PDF
    subprocess.run(["unoconv", "-f", "pdf", input_file])

    
    return output_file

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: python script.py <input_file>")
        sys.exit(1)
    
    input_file = sys.argv[1]  # Get the input file from command-line argument
    output_file = docx_to_pdf(input_file)
    print("Output PDF:", output_file)

The command (python3 conv_docx_pdf.py filename1.docx) works fine when I execute it in ubuntu terminal. However, php is unable to execute it.

rights for folder docx:

drwxr-xr-x 2 www-data www-data 4096 Mar 26 12:58 docx

rights for file $file1

-rw-r–r– 1 www-data www-data 11738 Mar 26 11:45 status29024.docx

I have other python programs (that don’t use subprocess) that are working fine when called from php.
Any help is appreciated.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    I thank you all for your help. I finally found the issue to be related to Unoconv and www-data permissions. I used the recommendations from this site.

    cd /var/www/
sudo mkdir .cache
sudo chown -R www-data:www-data .cache/
sudo chmod -R 744 .cache/
sudo mkdir .config
sudo chown -R www-data:www-data .config/ 
sudo chmod -R 744 .config/

  2. 0

    The command (python3 conv_docx_pdf.py filename1.docx) works fine when I execute it in ubuntu terminal.

    The command that is generated by the code you provided is not python3 conv_docx_pdf.py filename1.docx but python3 conv_docx_pdf.py "filename1.docx" (please note the extra quotes).

    Try this code instead after adding a semicolon at the end of line 2:

    $file1 = "filename1.docx";
$docx_filename = "/var/www/editeur/docx/" . $file1;
$command5 = "python3 conv_docx_pdf.py $docx_filename";

$output = shell_exec($command5);
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