a4262da7c9
- Changed ownership of all files to scheianu:scheianu - Set directories to 755 permissions (rwxr-xr-x) - Set files to 644 permissions (rw-r--r--) - Made shell scripts executable (755) - Allows development without requiring sudo for file modifications - Improves development workflow and security
107 lines
3.3 KiB
Python
107 lines
3.3 KiB
Python
"""PowerPoint to PDF converter using LibreOffice."""
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import os
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import subprocess
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import time
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import logging
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from typing import Optional
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logger = logging.getLogger(__name__)
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def cleanup_libreoffice_processes() -> None:
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"""Clean up any hanging LibreOffice processes."""
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try:
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subprocess.run(['pkill', '-f', 'soffice'], capture_output=True, timeout=10)
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time.sleep(1) # Give processes time to terminate
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except Exception as e:
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logger.warning(f"Failed to cleanup LibreOffice processes: {e}")
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def pptx_to_pdf_libreoffice(pptx_path: str, output_dir: str) -> Optional[str]:
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"""Convert PPTX to PDF using LibreOffice for highest quality.
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This function is the core component of the PPTX processing workflow:
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PPTX → PDF (this function) → JPG images (handled in uploads.py)
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Args:
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pptx_path: Path to the PPTX file
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output_dir: Directory to save the PDF
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Returns:
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Path to the generated PDF file, or None if conversion failed
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"""
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try:
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# Clean up any existing LibreOffice processes
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cleanup_libreoffice_processes()
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# Ensure output directory exists
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os.makedirs(output_dir, exist_ok=True)
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# Use LibreOffice to convert PPTX to PDF
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cmd = [
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'libreoffice',
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'--headless',
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'--convert-to', 'pdf',
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'--outdir', output_dir,
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'--invisible',
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'--nodefault',
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pptx_path
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]
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logger.info(f"Converting PPTX to PDF using LibreOffice: {pptx_path}")
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# Increase timeout to 300 seconds (5 minutes) for large presentations
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result = subprocess.run(cmd, capture_output=True, text=True, timeout=300)
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if result.returncode != 0:
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logger.error(f"LibreOffice conversion failed: {result.stderr}")
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logger.error(f"LibreOffice stdout: {result.stdout}")
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cleanup_libreoffice_processes()
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return None
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# Find the generated PDF file
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base_name = os.path.splitext(os.path.basename(pptx_path))[0]
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pdf_path = os.path.join(output_dir, f"{base_name}.pdf")
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if os.path.exists(pdf_path):
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logger.info(f"PDF conversion successful: {pdf_path}")
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cleanup_libreoffice_processes()
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return pdf_path
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else:
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logger.error(f"PDF file not found after conversion: {pdf_path}")
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cleanup_libreoffice_processes()
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return None
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except subprocess.TimeoutExpired:
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logger.error("LibreOffice conversion timed out (300s)")
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cleanup_libreoffice_processes()
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return None
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except Exception as e:
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logger.error(f"Error in PPTX to PDF conversion: {e}")
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cleanup_libreoffice_processes()
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return None
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def validate_pptx_file(filepath: str) -> bool:
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"""Validate if file is a valid PowerPoint file.
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Args:
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filepath: Path to file to validate
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Returns:
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True if valid PPTX file, False otherwise
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"""
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if not os.path.exists(filepath):
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return False
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# Check file extension
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if not filepath.lower().endswith(('.ppt', '.pptx')):
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return False
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# Check file size (must be > 0)
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if os.path.getsize(filepath) == 0:
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return False
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return True
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