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
46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
#
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# This file is part of pyasn1-modules software.
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#
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# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# PKCS#1 syntax
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#
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# ASN.1 source from:
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# ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.asn
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#
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# Sample captures could be obtained with "openssl genrsa" command
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#
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from pyasn1.type import constraint
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from pyasn1.type import namedval
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from pyasn1_modules.rfc2437 import *
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class OtherPrimeInfo(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('prime', univ.Integer()),
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namedtype.NamedType('exponent', univ.Integer()),
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namedtype.NamedType('coefficient', univ.Integer())
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)
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class OtherPrimeInfos(univ.SequenceOf):
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componentType = OtherPrimeInfo()
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sizeSpec = univ.SequenceOf.sizeSpec + constraint.ValueSizeConstraint(1, MAX)
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class RSAPrivateKey(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('version', univ.Integer(namedValues=namedval.NamedValues(('two-prime', 0), ('multi', 1)))),
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namedtype.NamedType('modulus', univ.Integer()),
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namedtype.NamedType('publicExponent', univ.Integer()),
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namedtype.NamedType('privateExponent', univ.Integer()),
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namedtype.NamedType('prime1', univ.Integer()),
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namedtype.NamedType('prime2', univ.Integer()),
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namedtype.NamedType('exponent1', univ.Integer()),
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namedtype.NamedType('exponent2', univ.Integer()),
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namedtype.NamedType('coefficient', univ.Integer()),
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namedtype.OptionalNamedType('otherPrimeInfos', OtherPrimeInfos())
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)
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