Gallery-Archivist/archivist/apps/files/tasks.py

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import os
import zipfile
import json
from celery import shared_task
@shared_task
def list_zip_contents(zip_path):
"""List the contents of a ZIP file.
Args:
zip_path (str): The path to the ZIP file.
Returns:
str: A JSON string containing the list of files in the ZIP archive
or an error/warning message if applicable.
"""
try:
# Check if the ZIP file size exceeds 2 GiB
if os.path.getsize(zip_path) >= 2 * 1024 * 1024 * 1024:
return json.dumps({"warning": "archive file is too big (>2GiB), ignoring"})
else:
# Open the ZIP file
with zipfile.ZipFile(zip_path, 'r') as zip_ref:
file_list = []
# Iterate over each file in the ZIP archive
for info in zip_ref.infolist():
# Append file details to the list
file_list.append({
"name": info.filename,
"size": info.file_size,
"date": info.date_time,
"crc": info.CRC,
"compressed_size": info.compress_size,
})
# Return the list of files as a JSON string
return json.dumps({"files": file_list})
except Exception as e:
# Return an error message if an exception occurs
return json.dumps({"error": str(e)})