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
67 lines
1.7 KiB
Python
67 lines
1.7 KiB
Python
#
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# This file is part of pyasn1-modules software.
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#
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# Created by Russ Housley.
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#
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# Copyright (c) 2019, Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# Camellia Algorithm in CMS
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc3657.txt
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#
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from pyasn1.type import constraint
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from pyasn1.type import univ
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from pyasn1_modules import rfc5280
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from pyasn1_modules import rfc5751
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id_camellia128_cbc = univ.ObjectIdentifier('1.2.392.200011.61.1.1.1.2')
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id_camellia192_cbc = univ.ObjectIdentifier('1.2.392.200011.61.1.1.1.3')
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id_camellia256_cbc = univ.ObjectIdentifier('1.2.392.200011.61.1.1.1.4')
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id_camellia128_wrap = univ.ObjectIdentifier('1.2.392.200011.61.1.1.3.2')
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id_camellia192_wrap = univ.ObjectIdentifier('1.2.392.200011.61.1.1.3.3')
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id_camellia256_wrap = univ.ObjectIdentifier('1.2.392.200011.61.1.1.3.4')
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class Camellia_IV(univ.OctetString):
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subtypeSpec = constraint.ValueSizeConstraint(16, 16)
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class CamelliaSMimeCapability(univ.Null):
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pass
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# Update the Algorithm Identifier map in rfc5280.py.
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_algorithmIdentifierMapUpdate = {
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id_camellia128_cbc: Camellia_IV(),
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id_camellia192_cbc: Camellia_IV(),
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id_camellia256_cbc: Camellia_IV(),
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}
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rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
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# Update the SMIMECapabilities Attribute map in rfc5751.py
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_smimeCapabilityMapUpdate = {
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id_camellia128_cbc: CamelliaSMimeCapability(),
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id_camellia192_cbc: CamelliaSMimeCapability(),
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id_camellia256_cbc: CamelliaSMimeCapability(),
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id_camellia128_wrap: CamelliaSMimeCapability(),
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id_camellia192_wrap: CamelliaSMimeCapability(),
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id_camellia256_wrap: CamelliaSMimeCapability(),
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}
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rfc5751.smimeCapabilityMap.update(_smimeCapabilityMapUpdate)
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