57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
import base64
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import io
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from uuid import uuid4
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from fastapi import UploadFile
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from PIL import Image
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from lnbits.core.crud.assets import create_asset, get_user_assets_count
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from lnbits.core.models.assets import Asset
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from lnbits.settings import settings
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async def create_user_asset(user_id: str, file: UploadFile, is_public: bool) -> Asset:
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if not file.content_type:
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raise ValueError("File must have a content type.")
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if file.content_type.lower() not in settings.lnbits_assets_allowed_mime_types:
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raise ValueError(f"File type '{file.content_type}' not allowed.")
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if user_id not in settings.lnbits_assets_no_limit_users:
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user_assets_count = await get_user_assets_count(user_id)
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if user_assets_count >= settings.lnbits_max_assets_per_user:
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raise ValueError(
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f"Max upload count of {settings.lnbits_max_assets_per_user} exceeded."
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)
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contents = await file.read()
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if len(contents) > settings.lnbits_max_asset_size_mb * 1024 * 1024:
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raise ValueError(
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f"File limit of {settings.lnbits_max_asset_size_mb}MB exceeded."
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)
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image = Image.open(io.BytesIO(contents))
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thumbnail_width = min(256, settings.lnbits_asset_thumbnail_width)
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thumbnail_height = min(256, settings.lnbits_asset_thumbnail_height)
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image.thumbnail((thumbnail_width, thumbnail_height))
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# Save thumbnail to an in-memory buffer
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thumb_buffer = io.BytesIO()
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thumbnail_format = settings.lnbits_asset_thumbnail_format or "PNG"
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image.save(thumb_buffer, format=thumbnail_format)
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thumb_buffer.seek(0)
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asset = Asset(
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id=uuid4().hex,
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user_id=user_id,
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mime_type=file.content_type,
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is_public=is_public,
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name=file.filename or "unnamed",
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size_bytes=len(contents),
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thumbnail_base64=base64.b64encode(thumb_buffer.getvalue()).decode("utf-8"),
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data=contents,
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)
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await create_asset(asset)
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return asset
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