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
55 lines
1.2 KiB
Python
55 lines
1.2 KiB
Python
#
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# Python Imaging Library
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# $Id$
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#
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# stuff to read simple, teragon-style palette files
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#
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# History:
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# 97-08-23 fl Created
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#
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# Copyright (c) Secret Labs AB 1997.
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# Copyright (c) Fredrik Lundh 1997.
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#
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# See the README file for information on usage and redistribution.
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#
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from __future__ import annotations
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from typing import IO
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from ._binary import o8
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class PaletteFile:
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"""File handler for Teragon-style palette files."""
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rawmode = "RGB"
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def __init__(self, fp: IO[bytes]) -> None:
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palette = [o8(i) * 3 for i in range(256)]
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while True:
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s = fp.readline()
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if not s:
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break
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if s.startswith(b"#"):
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continue
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if len(s) > 100:
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msg = "bad palette file"
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raise SyntaxError(msg)
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v = [int(x) for x in s.split()]
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try:
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[i, r, g, b] = v
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except ValueError:
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[i, r] = v
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g = b = r
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if 0 <= i <= 255:
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palette[i] = o8(r) + o8(g) + o8(b)
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self.palette = b"".join(palette)
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def getpalette(self) -> tuple[bytes, str]:
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return self.palette, self.rawmode
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