- 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
64 lines
1.5 KiB
Python
64 lines
1.5 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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# Modified by Russ Housley to add maps for use with opentypes.
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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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# X.509 Extensions for MUD URL and MUD Signer;
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# Object Identifier for CMS Content Type for a MUD file
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc8520.txt
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#
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from pyasn1.type import char
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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 rfc5652
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# X.509 Extension for MUD URL
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id_pe_mud_url = univ.ObjectIdentifier('1.3.6.1.5.5.7.1.25')
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class MUDURLSyntax(char.IA5String):
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pass
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# X.509 Extension for MUD Signer
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id_pe_mudsigner = univ.ObjectIdentifier('1.3.6.1.5.5.7.1.30')
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class MUDsignerSyntax(rfc5280.Name):
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pass
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# Object Identifier for CMS Content Type for a MUD file
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id_ct_mudtype = univ.ObjectIdentifier('1.2.840.113549.1.9.16.1.41')
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# Map of Certificate Extension OIDs to Extensions added to the
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# ones that are in rfc5280.py
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_certificateExtensionsMapUpdate = {
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id_pe_mud_url: MUDURLSyntax(),
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id_pe_mudsigner: MUDsignerSyntax(),
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}
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rfc5280.certificateExtensionsMap.update(_certificateExtensionsMapUpdate)
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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_mudtype: univ.OctetString(),
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}
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rfc5652.cmsContentTypesMap.update(_cmsContentTypesMapUpdate)
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