Revert "Use import of OCI structs (#22765) (#22805)"

This reverts commit a239d6c4a9.

Refs: https://codeberg.org/forgejo/forgejo/issues/334

go.mod

@@ -75,8 +75,6 @@ require (
 	github.com/niklasfasching/go-org v1.6.5
 	github.com/oliamb/cutter v0.2.2
 	github.com/olivere/elastic/v7 v7.0.32
-	github.com/opencontainers/go-digest v1.0.0
-	github.com/opencontainers/image-spec v1.1.0-rc2
 	github.com/pkg/errors v0.9.1
 	github.com/pquerna/otp v1.3.0
 	github.com/prometheus/client_golang v1.13.0

go.sum

@@ -1174,10 +1174,6 @@ github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1y
 github.com/onsi/gomega v1.10.3/go.mod h1:V9xEwhxec5O8UDM77eCW8vLymOMltsqPVYWrpDsH8xc=
 github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
-github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
-github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
-github.com/opencontainers/image-spec v1.1.0-rc2 h1:2zx/Stx4Wc5pIPDvIxHXvXtQFW/7XWJGmnM7r3wg034=
-github.com/opencontainers/image-spec v1.1.0-rc2/go.mod h1:3OVijpioIKYWTqjiG0zfF6wvoJ4fAXGbjdZuI2NgsRQ=
 github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492/go.mod h1:Ngi6UdF0k5OKD5t5wlmGhe/EDKPoUM3BXZSSfIuJbis=
 github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
 github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=

modules/packages/container/metadata.go

@@ -11,9 +11,8 @@ import (
 
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/packages/container/helm"
+	"code.gitea.io/gitea/modules/packages/container/oci"
 	"code.gitea.io/gitea/modules/validation"
-
-	oci "github.com/opencontainers/image-spec/specs-go/v1"
 )
 
 const (
@@ -67,8 +66,8 @@ type Metadata struct {
 }
 
 // ParseImageConfig parses the metadata of an image config
-func ParseImageConfig(mt string, r io.Reader) (*Metadata, error) {
+func ParseImageConfig(mediaType oci.MediaType, r io.Reader) (*Metadata, error) {
-	if strings.EqualFold(mt, helm.ConfigMediaType) {
+	if strings.EqualFold(string(mediaType), helm.ConfigMediaType) {
 		return parseHelmConfig(r)
 	}
 

modules/packages/container/metadata_test.go

@@ -9,8 +9,8 @@ import (
 	"testing"
 
 	"code.gitea.io/gitea/modules/packages/container/helm"
+	"code.gitea.io/gitea/modules/packages/container/oci"
 
-	oci "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -24,7 +24,7 @@ func TestParseImageConfig(t *testing.T) {
 
 	configOCI := `{"config": {"labels": {"` + labelAuthors + `": "` + author + `", "` + labelLicenses + `": "` + license + `", "` + labelURL + `": "` + projectURL + `", "` + labelSource + `": "` + repositoryURL + `", "` + labelDocumentation + `": "` + documentationURL + `", "` + labelDescription + `": "` + description + `"}}, "history": [{"created_by": "do it 1"}, {"created_by": "dummy #(nop) do it 2"}]}`
 
-	metadata, err := ParseImageConfig(oci.MediaTypeImageManifest, strings.NewReader(configOCI))
+	metadata, err := ParseImageConfig(oci.MediaType(oci.MediaTypeImageManifest), strings.NewReader(configOCI))
 	assert.NoError(t, err)
 
 	assert.Equal(t, TypeOCI, metadata.Type)
@@ -51,7 +51,7 @@ func TestParseImageConfig(t *testing.T) {
 
 	configHelm := `{"description":"` + description + `", "home": "` + projectURL + `", "sources": ["` + repositoryURL + `"], "maintainers":[{"name":"` + author + `"}]}`
 
-	metadata, err = ParseImageConfig(helm.ConfigMediaType, strings.NewReader(configHelm))
+	metadata, err = ParseImageConfig(oci.MediaType(helm.ConfigMediaType), strings.NewReader(configHelm))
 	assert.NoError(t, err)
 
 	assert.Equal(t, TypeHelm, metadata.Type)

modules/packages/container/oci/digest.go

@@ -0,0 +1,27 @@
+// 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 (
+	"regexp"
+	"strings"
+)
+
+var digestPattern = regexp.MustCompile(`\Asha256:[a-f0-9]{64}\z`)
+
+type Digest string
+
+// Validate checks if the digest has a valid SHA256 signature
+func (d Digest) Validate() bool {
+	return digestPattern.MatchString(string(d))
+}
+
+func (d Digest) Hash() string {
+	p := strings.SplitN(string(d), ":", 2)
+	if len(p) != 2 {
+		return ""
+	}
+	return p[1]
+}

modules/packages/container/oci/mediatype.go

@@ -0,0 +1,36 @@
+// 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)
+}

modules/packages/container/oci/oci.go

@@ -0,0 +1,191 @@
+// 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 (
+	"time"
+)
+
+// https://github.com/opencontainers/image-spec/tree/main/specs-go/v1
+
+// ImageConfig defines the execution parameters which should be used as a base when running a container using an image.
+type ImageConfig struct {
+	// User defines the username or UID which the process in the container should run as.
+	User string `json:"User,omitempty"`
+
+	// ExposedPorts a set of ports to expose from a container running this image.
+	ExposedPorts map[string]struct{} `json:"ExposedPorts,omitempty"`
+
+	// Env is a list of environment variables to be used in a container.
+	Env []string `json:"Env,omitempty"`
+
+	// Entrypoint defines a list of arguments to use as the command to execute when the container starts.
+	Entrypoint []string `json:"Entrypoint,omitempty"`
+
+	// Cmd defines the default arguments to the entrypoint of the container.
+	Cmd []string `json:"Cmd,omitempty"`
+
+	// Volumes is a set of directories describing where the process is likely write data specific to a container instance.
+	Volumes map[string]struct{} `json:"Volumes,omitempty"`
+
+	// WorkingDir sets the current working directory of the entrypoint process in the container.
+	WorkingDir string `json:"WorkingDir,omitempty"`
+
+	// Labels contains arbitrary metadata for the container.
+	Labels map[string]string `json:"Labels,omitempty"`
+
+	// StopSignal contains the system call signal that will be sent to the container to exit.
+	StopSignal string `json:"StopSignal,omitempty"`
+}
+
+// RootFS describes a layer content addresses
+type RootFS struct {
+	// Type is the type of the rootfs.
+	Type string `json:"type"`
+
+	// DiffIDs is an array of layer content hashes, in order from bottom-most to top-most.
+	DiffIDs []string `json:"diff_ids"`
+}
+
+// History describes the history of a layer.
+type History struct {
+	// Created is the combined date and time at which the layer was created, formatted as defined by RFC 3339, section 5.6.
+	Created *time.Time `json:"created,omitempty"`
+
+	// CreatedBy is the command which created the layer.
+	CreatedBy string `json:"created_by,omitempty"`
+
+	// Author is the author of the build point.
+	Author string `json:"author,omitempty"`
+
+	// Comment is a custom message set when creating the layer.
+	Comment string `json:"comment,omitempty"`
+
+	// EmptyLayer is used to mark if the history item created a filesystem diff.
+	EmptyLayer bool `json:"empty_layer,omitempty"`
+}
+
+// Image is the JSON structure which describes some basic information about the image.
+// This provides the `application/vnd.oci.image.config.v1+json` mediatype when marshalled to JSON.
+type Image struct {
+	// Created is the combined date and time at which the image was created, formatted as defined by RFC 3339, section 5.6.
+	Created *time.Time `json:"created,omitempty"`
+
+	// Author defines the name and/or email address of the person or entity which created and is responsible for maintaining the image.
+	Author string `json:"author,omitempty"`
+
+	// Architecture is the CPU architecture which the binaries in this image are built to run on.
+	Architecture string `json:"architecture"`
+
+	// Variant is the variant of the specified CPU architecture which image binaries are intended to run on.
+	Variant string `json:"variant,omitempty"`
+
+	// OS is the name of the operating system which the image is built to run on.
+	OS string `json:"os"`
+
+	// OSVersion is an optional field specifying the operating system
+	// version, for example on Windows `10.0.14393.1066`.
+	OSVersion string `json:"os.version,omitempty"`
+
+	// OSFeatures is an optional field specifying an array of strings,
+	// each listing a required OS feature (for example on Windows `win32k`).
+	OSFeatures []string `json:"os.features,omitempty"`
+
+	// Config defines the execution parameters which should be used as a base when running a container using the image.
+	Config ImageConfig `json:"config,omitempty"`
+
+	// RootFS references the layer content addresses used by the image.
+	RootFS RootFS `json:"rootfs"`
+
+	// History describes the history of each layer.
+	History []History `json:"history,omitempty"`
+}
+
+// Descriptor describes the disposition of targeted content.
+// This structure provides `application/vnd.oci.descriptor.v1+json` mediatype
+// when marshalled to JSON.
+type Descriptor struct {
+	// MediaType is the media type of the object this schema refers to.
+	MediaType MediaType `json:"mediaType,omitempty"`
+
+	// Digest is the digest of the targeted content.
+	Digest Digest `json:"digest"`
+
+	// Size specifies the size in bytes of the blob.
+	Size int64 `json:"size"`
+
+	// URLs specifies a list of URLs from which this object MAY be downloaded
+	URLs []string `json:"urls,omitempty"`
+
+	// Annotations contains arbitrary metadata relating to the targeted content.
+	Annotations map[string]string `json:"annotations,omitempty"`
+
+	// Data is an embedding of the targeted content. This is encoded as a base64
+	// string when marshalled to JSON (automatically, by encoding/json). If
+	// present, Data can be used directly to avoid fetching the targeted content.
+	Data []byte `json:"data,omitempty"`
+
+	// Platform describes the platform which the image in the manifest runs on.
+	//
+	// This should only be used when referring to a manifest.
+	Platform *Platform `json:"platform,omitempty"`
+}
+
+// Platform describes the platform which the image in the manifest runs on.
+type Platform struct {
+	// Architecture field specifies the CPU architecture, for example
+	// `amd64` or `ppc64`.
+	Architecture string `json:"architecture"`
+
+	// OS specifies the operating system, for example `linux` or `windows`.
+	OS string `json:"os"`
+
+	// OSVersion is an optional field specifying the operating system
+	// version, for example on Windows `10.0.14393.1066`.
+	OSVersion string `json:"os.version,omitempty"`
+
+	// OSFeatures is an optional field specifying an array of strings,
+	// each listing a required OS feature (for example on Windows `win32k`).
+	OSFeatures []string `json:"os.features,omitempty"`
+
+	// Variant is an optional field specifying a variant of the CPU, for
+	// example `v7` to specify ARMv7 when architecture is `arm`.
+	Variant string `json:"variant,omitempty"`
+}
+
+type SchemaMediaBase struct {
+	// SchemaVersion is the image manifest schema that this image follows
+	SchemaVersion int `json:"schemaVersion"`
+
+	// MediaType specifies the type of this document data structure e.g. `application/vnd.oci.image.manifest.v1+json`
+	MediaType MediaType `json:"mediaType,omitempty"`
+}
+
+// Manifest provides `application/vnd.oci.image.manifest.v1+json` mediatype structure when marshalled to JSON.
+type Manifest struct {
+	SchemaMediaBase
+
+	// Config references a configuration object for a container, by digest.
+	// The referenced configuration object is a JSON blob that the runtime uses to set up the container.
+	Config Descriptor `json:"config"`
+
+	// Layers is an indexed list of layers referenced by the manifest.
+	Layers []Descriptor `json:"layers"`
+
+	// Annotations contains arbitrary metadata for the image manifest.
+	Annotations map[string]string `json:"annotations,omitempty"`
+}
+
+// Index references manifests for various platforms.
+// This structure provides `application/vnd.oci.image.index.v1+json` mediatype when marshalled to JSON.
+type Index struct {
+	SchemaMediaBase
+
+	// Manifests references platform specific manifests.
+	Manifests []Descriptor `json:"manifests"`
+
+	// Annotations contains arbitrary metadata for the image index.
+	Annotations map[string]string `json:"annotations,omitempty"`
+}

modules/packages/container/oci/reference.go

@@ -0,0 +1,17 @@
+// 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 (
+	"regexp"
+)
+
+var referencePattern = regexp.MustCompile(`\A[a-zA-Z0-9_][a-zA-Z0-9._-]{0,127}\z`)
+
+type Reference string
+
+func (r Reference) Validate() bool {
+	return referencePattern.MatchString(string(r))
+}

routers/api/packages/container/container.go

@@ -23,23 +23,19 @@ import (
 	"code.gitea.io/gitea/modules/log"
 	packages_module "code.gitea.io/gitea/modules/packages"
 	container_module "code.gitea.io/gitea/modules/packages/container"
+	"code.gitea.io/gitea/modules/packages/container/oci"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/routers/api/packages/helper"
 	packages_service "code.gitea.io/gitea/services/packages"
 	container_service "code.gitea.io/gitea/services/packages/container"
-
-	digest "github.com/opencontainers/go-digest"
 )
 
 // maximum size of a container manifest
 // https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-manifests
 const maxManifestSize = 10 * 1024 * 1024
 
-var (
+var imageNamePattern = regexp.MustCompile(`\A[a-z0-9]+([._-][a-z0-9]+)*(/[a-z0-9]+([._-][a-z0-9]+)*)*\z`)
-	imageNamePattern = regexp.MustCompile(`\A[a-z0-9]+([._-][a-z0-9]+)*(/[a-z0-9]+([._-][a-z0-9]+)*)*\z`)
-	referencePattern = regexp.MustCompile(`\A[a-zA-Z0-9_][a-zA-Z0-9._-]{0,127}\z`)
-)
 
 type containerHeaders struct {
 	Status        int
@@ -411,16 +407,16 @@ func CancelUploadBlob(ctx *context.Context) {
 }
 
 func getBlobFromContext(ctx *context.Context) (*packages_model.PackageFileDescriptor, error) {
-	d := ctx.Params("digest")
+	digest := ctx.Params("digest")
 
-	if digest.Digest(d).Validate() != nil {
+	if !oci.Digest(digest).Validate() {
 		return nil, container_model.ErrContainerBlobNotExist
 	}
 
 	return workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
 		OwnerID: ctx.Package.Owner.ID,
 		Image:   ctx.Params("image"),
-		Digest:  d,
+		Digest:  digest,
 	})
 }
 
@@ -475,14 +471,14 @@ func GetBlob(ctx *context.Context) {
 
 // https://github.com/opencontainers/distribution-spec/blob/main/spec.md#deleting-blobs
 func DeleteBlob(ctx *context.Context) {
-	d := ctx.Params("digest")
+	digest := ctx.Params("digest")
 
-	if digest.Digest(d).Validate() != nil {
+	if !oci.Digest(digest).Validate() {
 		apiErrorDefined(ctx, errBlobUnknown)
 		return
 	}
 
-	if err := deleteBlob(ctx.Package.Owner.ID, ctx.Params("image"), d); err != nil {
+	if err := deleteBlob(ctx.Package.Owner.ID, ctx.Params("image"), digest); err != nil {
 		apiError(ctx, http.StatusInternalServerError, err)
 		return
 	}
@@ -497,15 +493,15 @@ func UploadManifest(ctx *context.Context) {
 	reference := ctx.Params("reference")
 
 	mci := &manifestCreationInfo{
-		MediaType: ctx.Req.Header.Get("Content-Type"),
+		MediaType: oci.MediaType(ctx.Req.Header.Get("Content-Type")),
 		Owner:     ctx.Package.Owner,
 		Creator:   ctx.Doer,
 		Image:     ctx.Params("image"),
 		Reference: reference,
-		IsTagged:  digest.Digest(reference).Validate() != nil,
+		IsTagged:  !oci.Digest(reference).Validate(),
 	}
 
-	if mci.IsTagged && !referencePattern.MatchString(reference) {
+	if mci.IsTagged && !oci.Reference(reference).Validate() {
 		apiErrorDefined(ctx, errManifestInvalid.WithMessage("Tag is invalid"))
 		return
 	}
@@ -543,7 +539,7 @@ func UploadManifest(ctx *context.Context) {
 	})
 }
 
-func getBlobSearchOptionsFromContext(ctx *context.Context) (*container_model.BlobSearchOptions, error) {
+func getManifestFromContext(ctx *context.Context) (*packages_model.PackageFileDescriptor, error) {
 	reference := ctx.Params("reference")
 
 	opts := &container_model.BlobSearchOptions{
@@ -551,24 +547,14 @@ func getBlobSearchOptionsFromContext(ctx *context.Context) (*container_model.Blo
 		Image:      ctx.Params("image"),
 		IsManifest: true,
 	}
-
+	if oci.Digest(reference).Validate() {
-	if digest.Digest(reference).Validate() == nil {
 		opts.Digest = reference
-	} else if referencePattern.MatchString(reference) {
+	} else if oci.Reference(reference).Validate() {
 		opts.Tag = reference
 	} else {
 		return nil, container_model.ErrContainerBlobNotExist
 	}
 
-	return opts, nil
-}
-
-func getManifestFromContext(ctx *context.Context) (*packages_model.PackageFileDescriptor, error) {
-	opts, err := getBlobSearchOptionsFromContext(ctx)
-	if err != nil {
-		return nil, err
-	}
-
 	return workaroundGetContainerBlob(ctx, opts)
 }
 
@@ -625,8 +611,18 @@ func GetManifest(ctx *context.Context) {
 // https://github.com/opencontainers/distribution-spec/blob/main/spec.md#deleting-tags
 // https://github.com/opencontainers/distribution-spec/blob/main/spec.md#deleting-manifests
 func DeleteManifest(ctx *context.Context) {
-	opts, err := getBlobSearchOptionsFromContext(ctx)
+	reference := ctx.Params("reference")
-	if err != nil {
+
+	opts := &container_model.BlobSearchOptions{
+		OwnerID:    ctx.Package.Owner.ID,
+		Image:      ctx.Params("image"),
+		IsManifest: true,
+	}
+	if oci.Digest(reference).Validate() {
+		opts.Digest = reference
+	} else if oci.Reference(reference).Validate() {
+		opts.Tag = reference
+	} else {
 		apiErrorDefined(ctx, errManifestUnknown)
 		return
 	}

routers/api/packages/container/manifest.go

@@ -20,28 +20,14 @@ import (
 	"code.gitea.io/gitea/modules/log"
 	packages_module "code.gitea.io/gitea/modules/packages"
 	container_module "code.gitea.io/gitea/modules/packages/container"
+	"code.gitea.io/gitea/modules/packages/container/oci"
 	"code.gitea.io/gitea/modules/util"
 	packages_service "code.gitea.io/gitea/services/packages"
-
-	digest "github.com/opencontainers/go-digest"
-	oci "github.com/opencontainers/image-spec/specs-go/v1"
 )
 
-func isValidMediaType(mt string) bool {
-	return strings.HasPrefix(mt, "application/vnd.docker.") || strings.HasPrefix(mt, "application/vnd.oci.")
-}
-
-func isImageManifestMediaType(mt string) bool {
-	return strings.EqualFold(mt, oci.MediaTypeImageManifest) || strings.EqualFold(mt, "application/vnd.docker.distribution.manifest.v2+json")
-}
-
-func isImageIndexMediaType(mt string) bool {
-	return strings.EqualFold(mt, oci.MediaTypeImageIndex) || strings.EqualFold(mt, "application/vnd.docker.distribution.manifest.list.v2+json")
-}
-
 // manifestCreationInfo describes a manifest to create
 type manifestCreationInfo struct {
-	MediaType  string
+	MediaType  oci.MediaType
 	Owner      *user_model.User
 	Creator    *user_model.User
 	Image      string
@@ -51,12 +37,12 @@ type manifestCreationInfo struct {
 }
 
 func processManifest(mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (string, error) {
-	var index oci.Index
+	var schema oci.SchemaMediaBase
-	if err := json.NewDecoder(buf).Decode(&index); err != nil {
+	if err := json.NewDecoder(buf).Decode(&schema); err != nil {
 		return "", err
 	}
 
-	if index.SchemaVersion != 2 {
+	if schema.SchemaVersion != 2 {
 		return "", errUnsupported.WithMessage("Schema version is not supported")
 	}
 
@@ -64,17 +50,17 @@ func processManifest(mci *manifestCreationInfo, buf *packages_module.HashedBuffe
 		return "", err
 	}
 
-	if !isValidMediaType(mci.MediaType) {
+	if !mci.MediaType.IsValid() {
-		mci.MediaType = index.MediaType
+		mci.MediaType = schema.MediaType
-		if !isValidMediaType(mci.MediaType) {
+		if !mci.MediaType.IsValid() {
 			return "", errManifestInvalid.WithMessage("MediaType not recognized")
 		}
 	}
 
-	if isImageManifestMediaType(mci.MediaType) {
+	if mci.MediaType.IsImageManifest() {
 		d, err := processImageManifest(mci, buf)
 		return d, err
-	} else if isImageIndexMediaType(mci.MediaType) {
+	} else if mci.MediaType.IsImageIndex() {
 		d, err := processImageManifestIndex(mci, buf)
 		return d, err
 	}
@@ -219,7 +205,7 @@ func processImageManifestIndex(mci *manifestCreationInfo, buf *packages_module.H
 		}
 
 		for _, manifest := range index.Manifests {
-			if !isImageManifestMediaType(manifest.MediaType) {
+			if !manifest.MediaType.IsImageManifest() {
 				return errManifestInvalid
 			}
 
@@ -359,8 +345,8 @@ func createPackageAndVersion(ctx context.Context, mci *manifestCreationInfo, met
 }
 
 type blobReference struct {
-	Digest       digest.Digest
+	Digest       oci.Digest
-	MediaType    string
+	MediaType    oci.MediaType
 	Name         string
 	File         *packages_model.PackageFileDescriptor
 	ExpectedSize int64
@@ -394,7 +380,7 @@ func createFileFromBlobReference(ctx context.Context, pv, uploadVersion *package
 	}
 
 	props := map[string]string{
-		container_module.PropertyMediaType: ref.MediaType,
+		container_module.PropertyMediaType: string(ref.MediaType),
 		container_module.PropertyDigest:    string(ref.Digest),
 	}
 	for name, value := range props {
@@ -439,7 +425,7 @@ func createManifestBlob(ctx context.Context, mci *manifestCreationInfo, pv *pack
 
 	manifestDigest := digestFromHashSummer(buf)
 	err = createFileFromBlobReference(ctx, pv, nil, &blobReference{
-		Digest:       digest.Digest(manifestDigest),
+		Digest:       oci.Digest(manifestDigest),
 		MediaType:    mci.MediaType,
 		Name:         container_model.ManifestFilename,
 		File:         &packages_model.PackageFileDescriptor{Blob: pb},

tests/integration/api_packages_container_test.go

@@ -20,11 +20,11 @@ import (
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
 	container_module "code.gitea.io/gitea/modules/packages/container"
+	"code.gitea.io/gitea/modules/packages/container/oci"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/tests"
 
-	oci "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -64,13 +64,13 @@ func TestPackageContainer(t *testing.T) {
 	configContent := `{"architecture":"amd64","config":{"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["/true"],"ArgsEscaped":true,"Image":"sha256:9bd8b88dc68b80cffe126cc820e4b52c6e558eb3b37680bfee8e5f3ed7b8c257"},"container":"b89fe92a887d55c0961f02bdfbfd8ac3ddf66167db374770d2d9e9fab3311510","container_config":{"Hostname":"b89fe92a887d","Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["/bin/sh","-c","#(nop) ","CMD [\"/true\"]"],"ArgsEscaped":true,"Image":"sha256:9bd8b88dc68b80cffe126cc820e4b52c6e558eb3b37680bfee8e5f3ed7b8c257"},"created":"2022-01-01T00:00:00.000000000Z","docker_version":"20.10.12","history":[{"created":"2022-01-01T00:00:00.000000000Z","created_by":"/bin/sh -c #(nop) COPY file:0e7589b0c800daaf6fa460d2677101e4676dd9491980210cb345480e513f3602 in /true "},{"created":"2022-01-01T00:00:00.000000001Z","created_by":"/bin/sh -c #(nop)  CMD [\"/true\"]","empty_layer":true}],"os":"linux","rootfs":{"type":"layers","diff_ids":["sha256:0ff3b91bdf21ecdf2f2f3d4372c2098a14dbe06cd678e8f0a85fd4902d00e2e2"]}}`
 
 	manifestDigest := "sha256:4f10484d1c1bb13e3956b4de1cd42db8e0f14a75be1617b60f2de3cd59c803c6"
-	manifestContent := `{"schemaVersion":2,"mediaType":"application/vnd.docker.distribution.manifest.v2+json","config":{"mediaType":"application/vnd.docker.container.image.v1+json","digest":"sha256:4607e093bec406eaadb6f3a340f63400c9d3a7038680744c406903766b938f0d","size":1069},"layers":[{"mediaType":"application/vnd.docker.image.rootfs.diff.tar.gzip","digest":"sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4","size":32}]}`
+	manifestContent := `{"schemaVersion":2,"mediaType":"` + oci.MediaTypeDockerManifest + `","config":{"mediaType":"application/vnd.docker.container.image.v1+json","digest":"sha256:4607e093bec406eaadb6f3a340f63400c9d3a7038680744c406903766b938f0d","size":1069},"layers":[{"mediaType":"application/vnd.docker.image.rootfs.diff.tar.gzip","digest":"sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4","size":32}]}`
 
 	untaggedManifestDigest := "sha256:4305f5f5572b9a426b88909b036e52ee3cf3d7b9c1b01fac840e90747f56623d"
 	untaggedManifestContent := `{"schemaVersion":2,"mediaType":"` + oci.MediaTypeImageManifest + `","config":{"mediaType":"application/vnd.docker.container.image.v1+json","digest":"sha256:4607e093bec406eaadb6f3a340f63400c9d3a7038680744c406903766b938f0d","size":1069},"layers":[{"mediaType":"application/vnd.docker.image.rootfs.diff.tar.gzip","digest":"sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4","size":32}]}`
 
 	indexManifestDigest := "sha256:bab112d6efb9e7f221995caaaa880352feb5bd8b1faf52fae8d12c113aa123ec"
-	indexManifestContent := `{"schemaVersion":2,"mediaType":"` + oci.MediaTypeImageIndex + `","manifests":[{"mediaType":"application/vnd.docker.distribution.manifest.v2+json","digest":"` + manifestDigest + `","platform":{"os":"linux","architecture":"arm","variant":"v7"}},{"mediaType":"` + oci.MediaTypeImageManifest + `","digest":"` + untaggedManifestDigest + `","platform":{"os":"linux","architecture":"arm64","variant":"v8"}}]}`
+	indexManifestContent := `{"schemaVersion":2,"mediaType":"` + oci.MediaTypeImageIndex + `","manifests":[{"mediaType":"` + oci.MediaTypeDockerManifest + `","digest":"` + manifestDigest + `","platform":{"os":"linux","architecture":"arm","variant":"v7"}},{"mediaType":"` + oci.MediaTypeImageManifest + `","digest":"` + untaggedManifestDigest + `","platform":{"os":"linux","architecture":"arm64","variant":"v8"}}]}`
 
 	anonymousToken := ""
 	userToken := ""
@@ -294,12 +294,12 @@ func TestPackageContainer(t *testing.T) {
 
 						req = NewRequestWithBody(t, "PUT", fmt.Sprintf("%s/manifests/%s", url, tag), strings.NewReader(manifestContent))
 						addTokenAuthHeader(req, anonymousToken)
-						req.Header.Set("Content-Type", "application/vnd.docker.distribution.manifest.v2+json")
+						req.Header.Set("Content-Type", oci.MediaTypeDockerManifest)
 						MakeRequest(t, req, http.StatusUnauthorized)
 
 						req = NewRequestWithBody(t, "PUT", fmt.Sprintf("%s/manifests/%s", url, tag), strings.NewReader(manifestContent))
 						addTokenAuthHeader(req, userToken)
-						req.Header.Set("Content-Type", "application/vnd.docker.distribution.manifest.v2+json")
+						req.Header.Set("Content-Type", oci.MediaTypeDockerManifest)
 						resp := MakeRequest(t, req, http.StatusCreated)
 
 						assert.Equal(t, manifestDigest, resp.Header().Get("Docker-Content-Digest"))
@@ -326,7 +326,7 @@ func TestPackageContainer(t *testing.T) {
 							switch pfd.File.Name {
 							case container_model.ManifestFilename:
 								assert.True(t, pfd.File.IsLead)
-								assert.Equal(t, "application/vnd.docker.distribution.manifest.v2+json", pfd.Properties.GetByName(container_module.PropertyMediaType))
+								assert.Equal(t, oci.MediaTypeDockerManifest, pfd.Properties.GetByName(container_module.PropertyMediaType))
 								assert.Equal(t, manifestDigest, pfd.Properties.GetByName(container_module.PropertyDigest))
 							case strings.Replace(configDigest, ":", "_", 1):
 								assert.False(t, pfd.File.IsLead)
@@ -352,7 +352,7 @@ func TestPackageContainer(t *testing.T) {
 						// Overwrite existing tag should keep the download count
 						req = NewRequestWithBody(t, "PUT", fmt.Sprintf("%s/manifests/%s", url, tag), strings.NewReader(manifestContent))
 						addTokenAuthHeader(req, userToken)
-						req.Header.Set("Content-Type", oci.MediaTypeImageManifest)
+						req.Header.Set("Content-Type", oci.MediaTypeDockerManifest)
 						MakeRequest(t, req, http.StatusCreated)
 
 						pv, err = packages_model.GetVersionByNameAndVersion(db.DefaultContext, user.ID, packages_model.TypeContainer, image, tag)
@@ -387,7 +387,7 @@ func TestPackageContainer(t *testing.T) {
 						resp := MakeRequest(t, req, http.StatusOK)
 
 						assert.Equal(t, fmt.Sprintf("%d", len(manifestContent)), resp.Header().Get("Content-Length"))
-						assert.Equal(t, oci.MediaTypeImageManifest, resp.Header().Get("Content-Type"))
+						assert.Equal(t, oci.MediaTypeDockerManifest, resp.Header().Get("Content-Type"))
 						assert.Equal(t, manifestDigest, resp.Header().Get("Docker-Content-Digest"))
 						assert.Equal(t, manifestContent, resp.Body.String())
 					})