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
72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
import http
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from .. import datastructures
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from ..exceptions import (
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InvalidHandshake,
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# InvalidMessage was incorrectly moved here in versions 14.0 and 14.1.
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InvalidMessage, # noqa: F401
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ProtocolError as WebSocketProtocolError, # noqa: F401
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)
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from ..typing import StatusLike
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class InvalidStatusCode(InvalidHandshake):
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"""
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Raised when a handshake response status code is invalid.
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"""
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def __init__(self, status_code: int, headers: datastructures.Headers) -> None:
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self.status_code = status_code
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self.headers = headers
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def __str__(self) -> str:
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return f"server rejected WebSocket connection: HTTP {self.status_code}"
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class AbortHandshake(InvalidHandshake):
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"""
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Raised to abort the handshake on purpose and return an HTTP response.
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This exception is an implementation detail.
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The public API is
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:meth:`~websockets.legacy.server.WebSocketServerProtocol.process_request`.
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Attributes:
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status (~http.HTTPStatus): HTTP status code.
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headers (Headers): HTTP response headers.
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body (bytes): HTTP response body.
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"""
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def __init__(
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self,
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status: StatusLike,
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headers: datastructures.HeadersLike,
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body: bytes = b"",
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) -> None:
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# If a user passes an int instead of an HTTPStatus, fix it automatically.
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self.status = http.HTTPStatus(status)
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self.headers = datastructures.Headers(headers)
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self.body = body
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def __str__(self) -> str:
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return (
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f"HTTP {self.status:d}, {len(self.headers)} headers, {len(self.body)} bytes"
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)
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class RedirectHandshake(InvalidHandshake):
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"""
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Raised when a handshake gets redirected.
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This exception is an implementation detail.
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"""
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def __init__(self, uri: str) -> None:
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self.uri = uri
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def __str__(self) -> str:
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return f"redirect to {self.uri}"
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