e344d4a5cf
This adds additional required properties and methods to the Docker schema interface to allow us to treat both schema1 and schema2 manifests and lists logically equivalent from the OCI mode perspective
22 lines
1 KiB
Python
22 lines
1 KiB
Python
from image.docker import ManifestException
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from image.docker.schema1 import DockerSchema1Manifest, DOCKER_SCHEMA1_CONTENT_TYPES
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from image.docker.schema2 import (DOCKER_SCHEMA2_MANIFEST_CONTENT_TYPE,
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DOCKER_SCHEMA2_MANIFESTLIST_CONTENT_TYPE)
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from image.docker.schema2.manifest import DockerSchema2Manifest
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from image.docker.schema2.list import DockerSchema2ManifestList
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def parse_manifest_from_bytes(manifest_bytes, media_type, validate=True):
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""" Parses and returns a manifest from the given bytes, for the given media type.
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Raises a ManifestException if the parse fails for some reason.
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"""
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if media_type == DOCKER_SCHEMA2_MANIFEST_CONTENT_TYPE:
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return DockerSchema2Manifest(manifest_bytes)
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if media_type == DOCKER_SCHEMA2_MANIFESTLIST_CONTENT_TYPE:
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return DockerSchema2ManifestList(manifest_bytes)
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if media_type in DOCKER_SCHEMA1_CONTENT_TYPES:
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return DockerSchema1Manifest(manifest_bytes, validate=validate)
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raise ManifestException('Unknown or unsupported manifest media type `%s`' % media_type)
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