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import os
import aiohttp
import random
import string
from config import NAMING_SCHEME, LOG
async def save_attachments(message) -> list:
"""Download attachments and return a list of their paths."""
paths = []
for attachment in message.attachments:
async with aiohttp.ClientSession() as session:
async with session.get(attachment.url) as response:
# Check if the request was successful
if response.status != 200:
LOG.warn(
f"Failed to download attachment: {attachment.url}"
)
continue
# Check for content type
content_type = response.headers.get("Content-Type")
if not content_type:
LOG.warn(
f"Failed to get content type for: {attachment.url}"
)
continue
filename = get_filename(
attachment, message, content_type.split("/")[-1]
)
# Save the attachment
with open(f"images/{filename}", "wb") as file:
file.write(await response.read())
# Add the path to the attachments list
paths.append(f"images/{filename}")
return paths
def get_filename(attachment, message, file_extension) -> str:
"""Generate a filename based on the naming scheme."""
if NAMING_SCHEME == "original":
i = 1
filename = attachment.filename
# account for duplicate filenames
while os.path.exists(f"images/{filename}.{file_extension}"):
filename = f"{attachment.filename}_{i}"
i += 1
elif NAMING_SCHEME == "timestamp":
i = 1
filename = message.created_at.isoformat()
# account for multiple attachments from the same message
while os.path.exists(f"images/{filename}.{file_extension}"):
filename = f"{message.created_at.isoformat()}_{i}"
i += 1
elif NAMING_SCHEME == "id":
filename = str(attachment.id)
else: # random
filename = "".join(
random.choice(string.ascii_letters) for _ in range(15)
)
return f"{filename}.{file_extension}"
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