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
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
# This file is being contributed to of pyasn1-modules software.
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#
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# Created by Russ Housley without assistance from the asn1ate tool.
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# Modified by Russ Housley to add a map for use with opentypes and
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# simplify the code for the object identifier assignment.
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#
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# Copyright (c) 2018, 2019 Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# Authenticated-Enveloped-Data for the Cryptographic Message Syntax (CMS)
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc5083.txt
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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 univ
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from pyasn1_modules import rfc5652
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MAX = float('inf')
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# CMS Authenticated-Enveloped-Data Content Type
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id_ct_authEnvelopedData = univ.ObjectIdentifier('1.2.840.113549.1.9.16.1.23')
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class AuthEnvelopedData(univ.Sequence):
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pass
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AuthEnvelopedData.componentType = namedtype.NamedTypes(
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namedtype.NamedType('version', rfc5652.CMSVersion()),
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namedtype.OptionalNamedType('originatorInfo', rfc5652.OriginatorInfo().subtype(
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implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
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namedtype.NamedType('recipientInfos', rfc5652.RecipientInfos()),
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namedtype.NamedType('authEncryptedContentInfo', rfc5652.EncryptedContentInfo()),
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namedtype.OptionalNamedType('authAttrs', rfc5652.AuthAttributes().subtype(
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implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
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namedtype.NamedType('mac', rfc5652.MessageAuthenticationCode()),
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namedtype.OptionalNamedType('unauthAttrs', rfc5652.UnauthAttributes().subtype(
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implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
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)
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# Map of Content Type OIDs to Content Types is added to the
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# ones that are in rfc5652.py
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_cmsContentTypesMapUpdate = {
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id_ct_authEnvelopedData: AuthEnvelopedData(),
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}
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rfc5652.cmsContentTypesMap.update(_cmsContentTypesMapUpdate)
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