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mediatype.go
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mediatype.go
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// Copyright 2022 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package oci
import (
"strings"
)
const (
MediaTypeImageManifest = "application/vnd.oci.image.manifest.v1+json"
MediaTypeImageIndex = "application/vnd.oci.image.index.v1+json"
MediaTypeDockerManifest = "application/vnd.docker.distribution.manifest.v2+json"
MediaTypeDockerManifestList = "application/vnd.docker.distribution.manifest.list.v2+json"
)
type MediaType string
// IsValid tests if the media type is in the OCI or Docker namespace
func (m MediaType) IsValid() bool {
s := string(m)
return strings.HasPrefix(s, "application/vnd.docker.") || strings.HasPrefix(s, "application/vnd.oci.")
}
// IsImageManifest tests if the media type is an image manifest
func (m MediaType) IsImageManifest() bool {
s := string(m)
return strings.EqualFold(s, MediaTypeDockerManifest) || strings.EqualFold(s, MediaTypeImageManifest)
}
// IsImageIndex tests if the media type is an image index
func (m MediaType) IsImageIndex() bool {
s := string(m)
return strings.EqualFold(s, MediaTypeDockerManifestList) || strings.EqualFold(s, MediaTypeImageIndex)
}