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
35 lines
1.2 KiB
Python
35 lines
1.2 KiB
Python
from fastapi.encoders import jsonable_encoder
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from fastapi.exceptions import RequestValidationError, WebSocketRequestValidationError
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from fastapi.utils import is_body_allowed_for_status_code
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from fastapi.websockets import WebSocket
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from starlette.exceptions import HTTPException
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from starlette.requests import Request
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from starlette.responses import JSONResponse, Response
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from starlette.status import WS_1008_POLICY_VIOLATION
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async def http_exception_handler(request: Request, exc: HTTPException) -> Response:
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headers = getattr(exc, "headers", None)
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if not is_body_allowed_for_status_code(exc.status_code):
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return Response(status_code=exc.status_code, headers=headers)
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return JSONResponse(
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{"detail": exc.detail}, status_code=exc.status_code, headers=headers
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)
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async def request_validation_exception_handler(
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request: Request, exc: RequestValidationError
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) -> JSONResponse:
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return JSONResponse(
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status_code=422,
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content={"detail": jsonable_encoder(exc.errors())},
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)
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async def websocket_request_validation_exception_handler(
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websocket: WebSocket, exc: WebSocketRequestValidationError
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) -> None:
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await websocket.close(
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code=WS_1008_POLICY_VIOLATION, reason=jsonable_encoder(exc.errors())
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)
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