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@@ -1,6 +1,8 @@
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import os
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import subprocess
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+import platform
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from pathlib import Path
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+import shutil
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class ConvertToPdfError(Exception):
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@@ -9,21 +11,114 @@ class ConvertToPdfError(Exception):
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super().__init__(self.msg)
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+# Chinese font list
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+REQUIRED_CHS_FONTS = ['SimSun', 'Microsoft YaHei', 'Noto Sans CJK SC']
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+
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+
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+def check_fonts_installed():
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+ """Check if required Chinese fonts are installed."""
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+ system_type = platform.system()
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+
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+ if system_type == 'Windows':
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+ # Windows: check fonts via registry or system font folder
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+ font_dir = Path("C:/Windows/Fonts")
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+ installed_fonts = [f.name for f in font_dir.glob("*.ttf")]
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+ if any(font for font in REQUIRED_CHS_FONTS if any(font in f for f in installed_fonts)):
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+ return True
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+ raise EnvironmentError(
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+ f"Missing Chinese font. Please install at least one of: {', '.join(REQUIRED_CHS_FONTS)}"
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+ )
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+ else:
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+ # Linux/macOS: use fc-list
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+ try:
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+ output = subprocess.check_output(['fc-list', ':lang=zh'], encoding='utf-8')
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+ for font in REQUIRED_CHS_FONTS:
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+ if font in output:
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+ return True
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+ raise EnvironmentError(
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+ f"Missing Chinese font. Please install at least one of: {', '.join(REQUIRED_CHS_FONTS)}"
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+ )
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+ except Exception as e:
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+ raise EnvironmentError(f"Font detection failed. Please install 'fontconfig' and fonts: {str(e)}")
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+
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+
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+def get_soffice_command():
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+ """Return the path to LibreOffice's soffice executable depending on the platform."""
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+ system_type = platform.system()
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+
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+ # First check if soffice is in PATH
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+ soffice_path = shutil.which('soffice')
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+ if soffice_path:
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+ return soffice_path
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+
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+ if system_type == 'Windows':
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+ # Check common installation paths
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+ possible_paths = [
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+ Path(os.environ.get('PROGRAMFILES', 'C:/Program Files')) / 'LibreOffice/program/soffice.exe',
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+ Path(os.environ.get('PROGRAMFILES(X86)', 'C:/Program Files (x86)')) / 'LibreOffice/program/soffice.exe',
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+ Path('C:/Program Files/LibreOffice/program/soffice.exe'),
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+ Path('C:/Program Files (x86)/LibreOffice/program/soffice.exe')
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+ ]
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+
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+ # Check other drives for windows
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+ for drive in ['C:', 'D:', 'E:', 'F:', 'G:', 'H:']:
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+ possible_paths.append(Path(f"{drive}/LibreOffice/program/soffice.exe"))
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+
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+ for path in possible_paths:
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+ if path.exists():
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+ return str(path)
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+
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+ raise ConvertToPdfError(
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+ "LibreOffice not found. Please install LibreOffice from https://www.libreoffice.org/ "
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+ "or ensure soffice.exe is in your PATH environment variable."
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+ )
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+ else:
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+ # For Linux/macOS, provide installation instructions if not found
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+ try:
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+ # Try to find soffice in standard locations
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+ possible_paths = [
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+ '/usr/bin/soffice',
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+ '/usr/local/bin/soffice',
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+ '/opt/libreoffice/program/soffice',
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+ '/Applications/LibreOffice.app/Contents/MacOS/soffice'
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+ ]
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+ for path in possible_paths:
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+ if os.path.exists(path):
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+ return path
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+
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+ raise ConvertToPdfError(
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+ "LibreOffice not found. Please install it:\n"
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+ " - Ubuntu/Debian: sudo apt-get install libreoffice\n"
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+ " - CentOS/RHEL: sudo yum install libreoffice\n"
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+ " - macOS: brew install libreoffice or download from https://www.libreoffice.org/\n"
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+ " - Or ensure soffice is in your PATH environment variable."
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+ )
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+ except Exception as e:
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+ raise ConvertToPdfError(f"Error locating LibreOffice: {str(e)}")
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+
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+
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def convert_file_to_pdf(input_path, output_dir):
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+ """Convert a single document (ppt, doc, etc.) to PDF."""
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if not os.path.isfile(input_path):
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raise FileNotFoundError(f"The input file {input_path} does not exist.")
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os.makedirs(output_dir, exist_ok=True)
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-
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+
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+ check_fonts_installed()
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+
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+ soffice_cmd = get_soffice_command()
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+
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cmd = [
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- 'soffice',
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+ soffice_cmd,
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'--headless',
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+ '--norestore',
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+ '--invisible',
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'--convert-to', 'pdf',
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'--outdir', str(output_dir),
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str(input_path)
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]
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-
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+
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process = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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-
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+
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if process.returncode != 0:
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- raise ConvertToPdfError(process.stderr.decode())
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+ raise ConvertToPdfError(f"LibreOffice convert failed: {process.stderr.decode()}")
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Xiaomeng Zhao