Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
19 lines
637 B
Python
19 lines
637 B
Python
from contextlib import AsyncExitStack
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from starlette.types import ASGIApp, Receive, Scope, Send
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# Used mainly to close files after the request is done, dependencies are closed
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# in their own AsyncExitStack
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class AsyncExitStackMiddleware:
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def __init__(
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self, app: ASGIApp, context_name: str = "fastapi_middleware_astack"
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) -> None:
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self.app = app
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self.context_name = context_name
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async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
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async with AsyncExitStack() as stack:
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scope[self.context_name] = stack
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await self.app(scope, receive, send)
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