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
69 lines
1.9 KiB
Python
69 lines
1.9 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 with assistance from asn1ate v.0.6.0.
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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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# RPKI Manifests
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc6486.txt
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#
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from pyasn1.type import char
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from pyasn1.type import constraint
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from pyasn1.type import namedtype
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from pyasn1.type import tag
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from pyasn1.type import useful
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from pyasn1.type import univ
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from pyasn1_modules import rfc5652
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MAX = float('inf')
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id_smime = univ.ObjectIdentifier('1.2.840.113549.1.9.16')
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id_ct = id_smime + (1, )
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id_ct_rpkiManifest = id_ct + (26, )
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class FileAndHash(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('file', char.IA5String()),
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namedtype.NamedType('hash', univ.BitString())
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)
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class Manifest(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.DefaultedNamedType('version',
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univ.Integer().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 0)).subtype(value=0)),
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namedtype.NamedType('manifestNumber',
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univ.Integer().subtype(
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subtypeSpec=constraint.ValueRangeConstraint(0, MAX))),
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namedtype.NamedType('thisUpdate',
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useful.GeneralizedTime()),
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namedtype.NamedType('nextUpdate',
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useful.GeneralizedTime()),
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namedtype.NamedType('fileHashAlg',
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univ.ObjectIdentifier()),
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namedtype.NamedType('fileList',
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univ.SequenceOf(componentType=FileAndHash()).subtype(
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subtypeSpec=constraint.ValueSizeConstraint(0, MAX)))
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)
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# Map of Content Type OIDs to Content Types added to the
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# ones that are in rfc5652.py
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_cmsContentTypesMapUpdate = {
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id_ct_rpkiManifest: Manifest(),
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}
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rfc5652.cmsContentTypesMap.update(_cmsContentTypesMapUpdate)
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