Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

5 files changed, 1571 insertions, 0 deletions

diff --git a/routers/api/packages/container/auth.go b/routers/api/packages/container/auth.go
new file mode 100644
index 0000000..a8b3ec1
--- /dev/null
+++ b/routers/api/packages/container/auth.go
@@ -0,0 +1,49 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"net/http"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/services/auth"
+	"code.gitea.io/gitea/services/packages"
+)
+
+var _ auth.Method = &Auth{}
+
+type Auth struct{}
+
+func (a *Auth) Name() string {
+	return "container"
+}
+
+// Verify extracts the user from the Bearer token
+// If it's an anonymous session a ghost user is returned
+func (a *Auth) Verify(req *http.Request, w http.ResponseWriter, store auth.DataStore, sess auth.SessionStore) (*user_model.User, error) {
+	uid, scope, err := packages.ParseAuthorizationToken(req)
+	if err != nil {
+		log.Trace("ParseAuthorizationToken: %v", err)
+		return nil, err
+	}
+
+	if uid == 0 {
+		return nil, nil
+	}
+
+	// Propagate scope of the authorization token.
+	if scope != "" {
+		store.GetData()["IsApiToken"] = true
+		store.GetData()["ApiTokenScope"] = scope
+	}
+
+	u, err := user_model.GetPossibleUserByID(req.Context(), uid)
+	if err != nil {
+		log.Error("GetPossibleUserByID:  %v", err)
+		return nil, err
+	}
+
+	return u, nil
+}
diff --git a/routers/api/packages/container/blob.go b/routers/api/packages/container/blob.go
new file mode 100644
index 0000000..9e3a470
--- /dev/null
+++ b/routers/api/packages/container/blob.go
@@ -0,0 +1,202 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"context"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+	"sync"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+	container_model "code.gitea.io/gitea/models/packages/container"
+	"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/util"
+	packages_service "code.gitea.io/gitea/services/packages"
+)
+
+var uploadVersionMutex sync.Mutex
+
+// saveAsPackageBlob creates a package blob from an upload
+// The uploaded blob gets stored in a special upload version to link them to the package/image
+func saveAsPackageBlob(ctx context.Context, hsr packages_module.HashedSizeReader, pci *packages_service.PackageCreationInfo) (*packages_model.PackageBlob, error) { //nolint:unparam
+	pb := packages_service.NewPackageBlob(hsr)
+
+	exists := false
+
+	contentStore := packages_module.NewContentStore()
+
+	uploadVersion, err := getOrCreateUploadVersion(ctx, &pci.PackageInfo)
+	if err != nil {
+		return nil, err
+	}
+
+	err = db.WithTx(ctx, func(ctx context.Context) error {
+		if err := packages_service.CheckSizeQuotaExceeded(ctx, pci.Creator, pci.Owner, packages_model.TypeContainer, hsr.Size()); err != nil {
+			return err
+		}
+
+		pb, exists, err = packages_model.GetOrInsertBlob(ctx, pb)
+		if err != nil {
+			log.Error("Error inserting package blob: %v", err)
+			return err
+		}
+		// FIXME: Workaround to be removed in v1.20
+		// https://github.com/go-gitea/gitea/issues/19586
+		if exists {
+			err = contentStore.Has(packages_module.BlobHash256Key(pb.HashSHA256))
+			if err != nil && (errors.Is(err, util.ErrNotExist) || errors.Is(err, os.ErrNotExist)) {
+				log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
+				exists = false
+			}
+		}
+		if !exists {
+			if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), hsr, hsr.Size()); err != nil {
+				log.Error("Error saving package blob in content store: %v", err)
+				return err
+			}
+		}
+
+		return createFileForBlob(ctx, uploadVersion, pb)
+	})
+	if err != nil {
+		if !exists {
+			if err := contentStore.Delete(packages_module.BlobHash256Key(pb.HashSHA256)); err != nil {
+				log.Error("Error deleting package blob from content store: %v", err)
+			}
+		}
+		return nil, err
+	}
+
+	return pb, nil
+}
+
+// mountBlob mounts the specific blob to a different package
+func mountBlob(ctx context.Context, pi *packages_service.PackageInfo, pb *packages_model.PackageBlob) error {
+	uploadVersion, err := getOrCreateUploadVersion(ctx, pi)
+	if err != nil {
+		return err
+	}
+
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		return createFileForBlob(ctx, uploadVersion, pb)
+	})
+}
+
+func getOrCreateUploadVersion(ctx context.Context, pi *packages_service.PackageInfo) (*packages_model.PackageVersion, error) {
+	var uploadVersion *packages_model.PackageVersion
+
+	// FIXME: Replace usage of mutex with database transaction
+	// https://github.com/go-gitea/gitea/pull/21862
+	uploadVersionMutex.Lock()
+	err := db.WithTx(ctx, func(ctx context.Context) error {
+		created := true
+		p := &packages_model.Package{
+			OwnerID:   pi.Owner.ID,
+			Type:      packages_model.TypeContainer,
+			Name:      strings.ToLower(pi.Name),
+			LowerName: strings.ToLower(pi.Name),
+		}
+		var err error
+		if p, err = packages_model.TryInsertPackage(ctx, p); err != nil {
+			if err == packages_model.ErrDuplicatePackage {
+				created = false
+			} else {
+				log.Error("Error inserting package: %v", err)
+				return err
+			}
+		}
+
+		if created {
+			if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypePackage, p.ID, container_module.PropertyRepository, strings.ToLower(pi.Owner.LowerName+"/"+pi.Name)); err != nil {
+				log.Error("Error setting package property: %v", err)
+				return err
+			}
+		}
+
+		pv := &packages_model.PackageVersion{
+			PackageID:    p.ID,
+			CreatorID:    pi.Owner.ID,
+			Version:      container_model.UploadVersion,
+			LowerVersion: container_model.UploadVersion,
+			IsInternal:   true,
+			MetadataJSON: "null",
+		}
+		if pv, err = packages_model.GetOrInsertVersion(ctx, pv); err != nil {
+			if err != packages_model.ErrDuplicatePackageVersion {
+				log.Error("Error inserting package: %v", err)
+				return err
+			}
+		}
+
+		uploadVersion = pv
+
+		return nil
+	})
+	uploadVersionMutex.Unlock()
+
+	return uploadVersion, err
+}
+
+func createFileForBlob(ctx context.Context, pv *packages_model.PackageVersion, pb *packages_model.PackageBlob) error {
+	filename := strings.ToLower(fmt.Sprintf("sha256_%s", pb.HashSHA256))
+
+	pf := &packages_model.PackageFile{
+		VersionID:    pv.ID,
+		BlobID:       pb.ID,
+		Name:         filename,
+		LowerName:    filename,
+		CompositeKey: packages_model.EmptyFileKey,
+	}
+	var err error
+	if pf, err = packages_model.TryInsertFile(ctx, pf); err != nil {
+		if err == packages_model.ErrDuplicatePackageFile {
+			return nil
+		}
+		log.Error("Error inserting package file: %v", err)
+		return err
+	}
+
+	if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeFile, pf.ID, container_module.PropertyDigest, digestFromPackageBlob(pb)); err != nil {
+		log.Error("Error setting package file property: %v", err)
+		return err
+	}
+
+	return nil
+}
+
+func deleteBlob(ctx context.Context, ownerID int64, image, digest string) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		pfds, err := container_model.GetContainerBlobs(ctx, &container_model.BlobSearchOptions{
+			OwnerID: ownerID,
+			Image:   image,
+			Digest:  digest,
+		})
+		if err != nil {
+			return err
+		}
+
+		for _, file := range pfds {
+			if err := packages_service.DeletePackageFile(ctx, file.File); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func digestFromHashSummer(h packages_module.HashSummer) string {
+	_, _, hashSHA256, _ := h.Sums()
+	return "sha256:" + hex.EncodeToString(hashSHA256)
+}
+
+func digestFromPackageBlob(pb *packages_model.PackageBlob) string {
+	return "sha256:" + pb.HashSHA256
+}
diff --git a/routers/api/packages/container/container.go b/routers/api/packages/container/container.go
new file mode 100644
index 0000000..f376e7b
--- /dev/null
+++ b/routers/api/packages/container/container.go
@@ -0,0 +1,785 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	packages_model "code.gitea.io/gitea/models/packages"
+	container_model "code.gitea.io/gitea/models/packages/container"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"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/setting"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/routers/api/packages/helper"
+	"code.gitea.io/gitea/services/context"
+	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 (
+	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
+	ContentDigest string
+	UploadUUID    string
+	Range         string
+	Location      string
+	ContentType   string
+	ContentLength int64
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#legacy-docker-support-http-headers
+func setResponseHeaders(resp http.ResponseWriter, h *containerHeaders) {
+	if h.Location != "" {
+		resp.Header().Set("Location", h.Location)
+	}
+	if h.Range != "" {
+		resp.Header().Set("Range", h.Range)
+	}
+	if h.ContentType != "" {
+		resp.Header().Set("Content-Type", h.ContentType)
+	}
+	if h.ContentLength != 0 {
+		resp.Header().Set("Content-Length", strconv.FormatInt(h.ContentLength, 10))
+	}
+	if h.UploadUUID != "" {
+		resp.Header().Set("Docker-Upload-Uuid", h.UploadUUID)
+	}
+	if h.ContentDigest != "" {
+		resp.Header().Set("Docker-Content-Digest", h.ContentDigest)
+		resp.Header().Set("ETag", fmt.Sprintf(`"%s"`, h.ContentDigest))
+	}
+	resp.Header().Set("Docker-Distribution-Api-Version", "registry/2.0")
+	resp.WriteHeader(h.Status)
+}
+
+func jsonResponse(ctx *context.Context, status int, obj any) {
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Status:      status,
+		ContentType: "application/json",
+	})
+	if err := json.NewEncoder(ctx.Resp).Encode(obj); err != nil {
+		log.Error("JSON encode: %v", err)
+	}
+}
+
+func apiError(ctx *context.Context, status int, err error) {
+	helper.LogAndProcessError(ctx, status, err, func(message string) {
+		setResponseHeaders(ctx.Resp, &containerHeaders{
+			Status: status,
+		})
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#error-codes
+func apiErrorDefined(ctx *context.Context, err *namedError) {
+	type ContainerError struct {
+		Code    string `json:"code"`
+		Message string `json:"message"`
+	}
+
+	type ContainerErrors struct {
+		Errors []ContainerError `json:"errors"`
+	}
+
+	jsonResponse(ctx, err.StatusCode, ContainerErrors{
+		Errors: []ContainerError{
+			{
+				Code:    err.Code,
+				Message: err.Message,
+			},
+		},
+	})
+}
+
+func apiUnauthorizedError(ctx *context.Context) {
+	ctx.Resp.Header().Add("WWW-Authenticate", `Bearer realm="`+setting.AppURL+`v2/token",service="container_registry",scope="*"`)
+	apiErrorDefined(ctx, errUnauthorized)
+}
+
+// ReqContainerAccess is a middleware which checks the current user valid (real user or ghost if anonymous access is enabled)
+func ReqContainerAccess(ctx *context.Context) {
+	if ctx.Doer == nil || (setting.Service.RequireSignInView && ctx.Doer.IsGhost()) {
+		apiUnauthorizedError(ctx)
+	}
+}
+
+// VerifyImageName is a middleware which checks if the image name is allowed
+func VerifyImageName(ctx *context.Context) {
+	if !imageNamePattern.MatchString(ctx.Params("image")) {
+		apiErrorDefined(ctx, errNameInvalid)
+	}
+}
+
+// DetermineSupport is used to test if the registry supports OCI
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#determining-support
+func DetermineSupport(ctx *context.Context) {
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Status: http.StatusOK,
+	})
+}
+
+// Authenticate creates a token for the current user
+// If the current user is anonymous, the ghost user is used unless RequireSignInView is enabled.
+func Authenticate(ctx *context.Context) {
+	u := ctx.Doer
+	if u == nil {
+		if setting.Service.RequireSignInView {
+			apiUnauthorizedError(ctx)
+			return
+		}
+
+		u = user_model.NewGhostUser()
+	}
+
+	// If there's an API scope, ensure it propagates.
+	scope, _ := ctx.Data["ApiTokenScope"].(auth_model.AccessTokenScope)
+
+	token, err := packages_service.CreateAuthorizationToken(u, scope)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	ctx.JSON(http.StatusOK, map[string]string{
+		"token": token,
+	})
+}
+
+// https://distribution.github.io/distribution/spec/auth/oauth/
+func AuthenticateNotImplemented(ctx *context.Context) {
+	// This optional endpoint can be used to authenticate a client.
+	// It must implement the specification described in:
+	// https://datatracker.ietf.org/doc/html/rfc6749
+	// https://distribution.github.io/distribution/spec/auth/oauth/
+	// Purpose of this stub is to respond with 404 Not Found instead of 405 Method Not Allowed.
+
+	ctx.Status(http.StatusNotFound)
+}
+
+// https://docs.docker.com/registry/spec/api/#listing-repositories
+func GetRepositoryList(ctx *context.Context) {
+	n := ctx.FormInt("n")
+	if n <= 0 || n > 100 {
+		n = 100
+	}
+	last := ctx.FormTrim("last")
+
+	repositories, err := container_model.GetRepositories(ctx, ctx.Doer, n, last)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	type RepositoryList struct {
+		Repositories []string `json:"repositories"`
+	}
+
+	if len(repositories) == n {
+		v := url.Values{}
+		if n > 0 {
+			v.Add("n", strconv.Itoa(n))
+		}
+		v.Add("last", repositories[len(repositories)-1])
+
+		ctx.Resp.Header().Set("Link", fmt.Sprintf(`</v2/_catalog?%s>; rel="next"`, v.Encode()))
+	}
+
+	jsonResponse(ctx, http.StatusOK, RepositoryList{
+		Repositories: repositories,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#mounting-a-blob-from-another-repository
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#single-post
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-a-blob-in-chunks
+func InitiateUploadBlob(ctx *context.Context) {
+	image := ctx.Params("image")
+
+	mount := ctx.FormTrim("mount")
+	from := ctx.FormTrim("from")
+	if mount != "" {
+		blob, _ := workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
+			Repository: from,
+			Digest:     mount,
+		})
+		if blob != nil {
+			accessible, err := packages_model.IsBlobAccessibleForUser(ctx, blob.Blob.ID, ctx.Doer)
+			if err != nil {
+				apiError(ctx, http.StatusInternalServerError, err)
+				return
+			}
+
+			if accessible {
+				if err := mountBlob(ctx, &packages_service.PackageInfo{Owner: ctx.Package.Owner, Name: image}, blob.Blob); err != nil {
+					apiError(ctx, http.StatusInternalServerError, err)
+					return
+				}
+
+				setResponseHeaders(ctx.Resp, &containerHeaders{
+					Location:      fmt.Sprintf("/v2/%s/%s/blobs/%s", ctx.Package.Owner.LowerName, image, mount),
+					ContentDigest: mount,
+					Status:        http.StatusCreated,
+				})
+				return
+			}
+		}
+	}
+
+	digest := ctx.FormTrim("digest")
+	if digest != "" {
+		buf, err := packages_module.CreateHashedBufferFromReader(ctx.Req.Body)
+		if err != nil {
+			apiError(ctx, http.StatusInternalServerError, err)
+			return
+		}
+		defer buf.Close()
+
+		if digest != digestFromHashSummer(buf) {
+			apiErrorDefined(ctx, errDigestInvalid)
+			return
+		}
+
+		if _, err := saveAsPackageBlob(ctx,
+			buf,
+			&packages_service.PackageCreationInfo{
+				PackageInfo: packages_service.PackageInfo{
+					Owner: ctx.Package.Owner,
+					Name:  image,
+				},
+				Creator: ctx.Doer,
+			},
+		); err != nil {
+			switch err {
+			case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
+				apiError(ctx, http.StatusForbidden, err)
+			default:
+				apiError(ctx, http.StatusInternalServerError, err)
+			}
+			return
+		}
+
+		setResponseHeaders(ctx.Resp, &containerHeaders{
+			Location:      fmt.Sprintf("/v2/%s/%s/blobs/%s", ctx.Package.Owner.LowerName, image, digest),
+			ContentDigest: digest,
+			Status:        http.StatusCreated,
+		})
+		return
+	}
+
+	upload, err := packages_model.CreateBlobUpload(ctx)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Location:   fmt.Sprintf("/v2/%s/%s/blobs/uploads/%s", ctx.Package.Owner.LowerName, image, upload.ID),
+		Range:      "0-0",
+		UploadUUID: upload.ID,
+		Status:     http.StatusAccepted,
+	})
+}
+
+// https://docs.docker.com/registry/spec/api/#get-blob-upload
+func GetUploadBlob(ctx *context.Context) {
+	uuid := ctx.Params("uuid")
+
+	upload, err := packages_model.GetBlobUploadByID(ctx, uuid)
+	if err != nil {
+		if err == packages_model.ErrPackageBlobUploadNotExist {
+			apiErrorDefined(ctx, errBlobUploadUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Range:      fmt.Sprintf("0-%d", upload.BytesReceived),
+		UploadUUID: upload.ID,
+		Status:     http.StatusNoContent,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-a-blob-in-chunks
+func UploadBlob(ctx *context.Context) {
+	image := ctx.Params("image")
+
+	uploader, err := container_service.NewBlobUploader(ctx, ctx.Params("uuid"))
+	if err != nil {
+		if err == packages_model.ErrPackageBlobUploadNotExist {
+			apiErrorDefined(ctx, errBlobUploadUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+	defer uploader.Close()
+
+	contentRange := ctx.Req.Header.Get("Content-Range")
+	if contentRange != "" {
+		start, end := 0, 0
+		if _, err := fmt.Sscanf(contentRange, "%d-%d", &start, &end); err != nil {
+			apiErrorDefined(ctx, errBlobUploadInvalid)
+			return
+		}
+
+		if int64(start) != uploader.Size() {
+			apiErrorDefined(ctx, errBlobUploadInvalid.WithStatusCode(http.StatusRequestedRangeNotSatisfiable))
+			return
+		}
+	} else if uploader.Size() != 0 {
+		apiErrorDefined(ctx, errBlobUploadInvalid.WithMessage("Stream uploads after first write are not allowed"))
+		return
+	}
+
+	if err := uploader.Append(ctx, ctx.Req.Body); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Location:   fmt.Sprintf("/v2/%s/%s/blobs/uploads/%s", ctx.Package.Owner.LowerName, image, uploader.ID),
+		Range:      fmt.Sprintf("0-%d", uploader.Size()-1),
+		UploadUUID: uploader.ID,
+		Status:     http.StatusAccepted,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-a-blob-in-chunks
+func EndUploadBlob(ctx *context.Context) {
+	image := ctx.Params("image")
+
+	digest := ctx.FormTrim("digest")
+	if digest == "" {
+		apiErrorDefined(ctx, errDigestInvalid)
+		return
+	}
+
+	uploader, err := container_service.NewBlobUploader(ctx, ctx.Params("uuid"))
+	if err != nil {
+		if err == packages_model.ErrPackageBlobUploadNotExist {
+			apiErrorDefined(ctx, errBlobUploadUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+	doClose := true
+	defer func() {
+		if doClose {
+			uploader.Close()
+		}
+	}()
+
+	if ctx.Req.Body != nil {
+		if err := uploader.Append(ctx, ctx.Req.Body); err != nil {
+			apiError(ctx, http.StatusInternalServerError, err)
+			return
+		}
+	}
+
+	if digest != digestFromHashSummer(uploader) {
+		apiErrorDefined(ctx, errDigestInvalid)
+		return
+	}
+
+	if _, err := saveAsPackageBlob(ctx,
+		uploader,
+		&packages_service.PackageCreationInfo{
+			PackageInfo: packages_service.PackageInfo{
+				Owner: ctx.Package.Owner,
+				Name:  image,
+			},
+			Creator: ctx.Doer,
+		},
+	); err != nil {
+		switch err {
+		case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
+			apiError(ctx, http.StatusForbidden, err)
+		default:
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	if err := uploader.Close(); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	doClose = false
+
+	if err := container_service.RemoveBlobUploadByID(ctx, uploader.ID); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Location:      fmt.Sprintf("/v2/%s/%s/blobs/%s", ctx.Package.Owner.LowerName, image, digest),
+		ContentDigest: digest,
+		Status:        http.StatusCreated,
+	})
+}
+
+// https://docs.docker.com/registry/spec/api/#delete-blob-upload
+func CancelUploadBlob(ctx *context.Context) {
+	uuid := ctx.Params("uuid")
+
+	_, err := packages_model.GetBlobUploadByID(ctx, uuid)
+	if err != nil {
+		if err == packages_model.ErrPackageBlobUploadNotExist {
+			apiErrorDefined(ctx, errBlobUploadUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	if err := container_service.RemoveBlobUploadByID(ctx, uuid); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Status: http.StatusNoContent,
+	})
+}
+
+func getBlobFromContext(ctx *context.Context) (*packages_model.PackageFileDescriptor, error) {
+	d := ctx.Params("digest")
+
+	if digest.Digest(d).Validate() != nil {
+		return nil, container_model.ErrContainerBlobNotExist
+	}
+
+	return workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
+		OwnerID: ctx.Package.Owner.ID,
+		Image:   ctx.Params("image"),
+		Digest:  d,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#checking-if-content-exists-in-the-registry
+func HeadBlob(ctx *context.Context) {
+	blob, err := getBlobFromContext(ctx)
+	if err != nil {
+		if err == container_model.ErrContainerBlobNotExist {
+			apiErrorDefined(ctx, errBlobUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		ContentDigest: blob.Properties.GetByName(container_module.PropertyDigest),
+		ContentLength: blob.Blob.Size,
+		Status:        http.StatusOK,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pulling-blobs
+func GetBlob(ctx *context.Context) {
+	blob, err := getBlobFromContext(ctx)
+	if err != nil {
+		if err == container_model.ErrContainerBlobNotExist {
+			apiErrorDefined(ctx, errBlobUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	serveBlob(ctx, blob)
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#deleting-blobs
+func DeleteBlob(ctx *context.Context) {
+	d := ctx.Params("digest")
+
+	if digest.Digest(d).Validate() != nil {
+		apiErrorDefined(ctx, errBlobUnknown)
+		return
+	}
+
+	if err := deleteBlob(ctx, ctx.Package.Owner.ID, ctx.Params("image"), d); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Status: http.StatusAccepted,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-manifests
+func UploadManifest(ctx *context.Context) {
+	reference := ctx.Params("reference")
+
+	mci := &manifestCreationInfo{
+		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,
+	}
+
+	if mci.IsTagged && !referencePattern.MatchString(reference) {
+		apiErrorDefined(ctx, errManifestInvalid.WithMessage("Tag is invalid"))
+		return
+	}
+
+	maxSize := maxManifestSize + 1
+	buf, err := packages_module.CreateHashedBufferFromReaderWithSize(&io.LimitedReader{R: ctx.Req.Body, N: int64(maxSize)}, maxSize)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	defer buf.Close()
+
+	if buf.Size() > maxManifestSize {
+		apiErrorDefined(ctx, errManifestInvalid.WithMessage("Manifest exceeds maximum size").WithStatusCode(http.StatusRequestEntityTooLarge))
+		return
+	}
+
+	digest, err := processManifest(ctx, mci, buf)
+	if err != nil {
+		var namedError *namedError
+		if errors.As(err, &namedError) {
+			apiErrorDefined(ctx, namedError)
+		} else if errors.Is(err, container_model.ErrContainerBlobNotExist) {
+			apiErrorDefined(ctx, errBlobUnknown)
+		} else {
+			switch err {
+			case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
+				apiError(ctx, http.StatusForbidden, err)
+			default:
+				apiError(ctx, http.StatusInternalServerError, err)
+			}
+		}
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Location:      fmt.Sprintf("/v2/%s/%s/manifests/%s", ctx.Package.Owner.LowerName, mci.Image, reference),
+		ContentDigest: digest,
+		Status:        http.StatusCreated,
+	})
+}
+
+func getBlobSearchOptionsFromContext(ctx *context.Context) (*container_model.BlobSearchOptions, error) {
+	reference := ctx.Params("reference")
+
+	opts := &container_model.BlobSearchOptions{
+		OwnerID:    ctx.Package.Owner.ID,
+		Image:      ctx.Params("image"),
+		IsManifest: true,
+	}
+
+	if digest.Digest(reference).Validate() == nil {
+		opts.Digest = reference
+	} else if referencePattern.MatchString(reference) {
+		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)
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#checking-if-content-exists-in-the-registry
+func HeadManifest(ctx *context.Context) {
+	manifest, err := getManifestFromContext(ctx)
+	if err != nil {
+		if err == container_model.ErrContainerBlobNotExist {
+			apiErrorDefined(ctx, errManifestUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		ContentDigest: manifest.Properties.GetByName(container_module.PropertyDigest),
+		ContentType:   manifest.Properties.GetByName(container_module.PropertyMediaType),
+		ContentLength: manifest.Blob.Size,
+		Status:        http.StatusOK,
+	})
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pulling-manifests
+func GetManifest(ctx *context.Context) {
+	manifest, err := getManifestFromContext(ctx)
+	if err != nil {
+		if err == container_model.ErrContainerBlobNotExist {
+			apiErrorDefined(ctx, errManifestUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	serveBlob(ctx, manifest)
+}
+
+// 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)
+	if err != nil {
+		apiErrorDefined(ctx, errManifestUnknown)
+		return
+	}
+
+	pvs, err := container_model.GetManifestVersions(ctx, opts)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	if len(pvs) == 0 {
+		apiErrorDefined(ctx, errManifestUnknown)
+		return
+	}
+
+	for _, pv := range pvs {
+		if err := packages_service.RemovePackageVersion(ctx, ctx.Doer, pv); err != nil {
+			apiError(ctx, http.StatusInternalServerError, err)
+			return
+		}
+	}
+
+	setResponseHeaders(ctx.Resp, &containerHeaders{
+		Status: http.StatusAccepted,
+	})
+}
+
+func serveBlob(ctx *context.Context, pfd *packages_model.PackageFileDescriptor) {
+	s, u, _, err := packages_service.GetPackageBlobStream(ctx, pfd.File, pfd.Blob)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	headers := &containerHeaders{
+		ContentDigest: pfd.Properties.GetByName(container_module.PropertyDigest),
+		ContentType:   pfd.Properties.GetByName(container_module.PropertyMediaType),
+		ContentLength: pfd.Blob.Size,
+		Status:        http.StatusOK,
+	}
+
+	if u != nil {
+		headers.Status = http.StatusTemporaryRedirect
+		headers.Location = u.String()
+
+		setResponseHeaders(ctx.Resp, headers)
+		return
+	}
+
+	defer s.Close()
+
+	setResponseHeaders(ctx.Resp, headers)
+	if _, err := io.Copy(ctx.Resp, s); err != nil {
+		log.Error("Error whilst copying content to response: %v", err)
+	}
+}
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#content-discovery
+func GetTagList(ctx *context.Context) {
+	image := ctx.Params("image")
+
+	if _, err := packages_model.GetPackageByName(ctx, ctx.Package.Owner.ID, packages_model.TypeContainer, image); err != nil {
+		if err == packages_model.ErrPackageNotExist {
+			apiErrorDefined(ctx, errNameUnknown)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	n := -1
+	if ctx.FormTrim("n") != "" {
+		n = ctx.FormInt("n")
+	}
+	last := ctx.FormTrim("last")
+
+	tags, err := container_model.GetImageTags(ctx, ctx.Package.Owner.ID, image, n, last)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	type TagList struct {
+		Name string   `json:"name"`
+		Tags []string `json:"tags"`
+	}
+
+	if len(tags) > 0 {
+		v := url.Values{}
+		if n > 0 {
+			v.Add("n", strconv.Itoa(n))
+		}
+		v.Add("last", tags[len(tags)-1])
+
+		ctx.Resp.Header().Set("Link", fmt.Sprintf(`</v2/%s/%s/tags/list?%s>; rel="next"`, ctx.Package.Owner.LowerName, image, v.Encode()))
+	}
+
+	jsonResponse(ctx, http.StatusOK, TagList{
+		Name: strings.ToLower(ctx.Package.Owner.LowerName + "/" + image),
+		Tags: tags,
+	})
+}
+
+// FIXME: Workaround to be removed in v1.20
+// https://github.com/go-gitea/gitea/issues/19586
+func workaroundGetContainerBlob(ctx *context.Context, opts *container_model.BlobSearchOptions) (*packages_model.PackageFileDescriptor, error) {
+	blob, err := container_model.GetContainerBlob(ctx, opts)
+	if err != nil {
+		return nil, err
+	}
+
+	err = packages_module.NewContentStore().Has(packages_module.BlobHash256Key(blob.Blob.HashSHA256))
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) || errors.Is(err, os.ErrNotExist) {
+			log.Debug("Package registry inconsistent: blob %s does not exist on file system", blob.Blob.HashSHA256)
+			return nil, container_model.ErrContainerBlobNotExist
+		}
+		return nil, err
+	}
+
+	return blob, nil
+}
diff --git a/routers/api/packages/container/errors.go b/routers/api/packages/container/errors.go
new file mode 100644
index 0000000..1a9b0f3
--- /dev/null
+++ b/routers/api/packages/container/errors.go
@@ -0,0 +1,52 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"net/http"
+)
+
+// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#error-codes
+var (
+	errBlobUnknown         = &namedError{Code: "BLOB_UNKNOWN", StatusCode: http.StatusNotFound}
+	errBlobUploadInvalid   = &namedError{Code: "BLOB_UPLOAD_INVALID", StatusCode: http.StatusBadRequest}
+	errBlobUploadUnknown   = &namedError{Code: "BLOB_UPLOAD_UNKNOWN", StatusCode: http.StatusNotFound}
+	errDigestInvalid       = &namedError{Code: "DIGEST_INVALID", StatusCode: http.StatusBadRequest}
+	errManifestBlobUnknown = &namedError{Code: "MANIFEST_BLOB_UNKNOWN", StatusCode: http.StatusNotFound}
+	errManifestInvalid     = &namedError{Code: "MANIFEST_INVALID", StatusCode: http.StatusBadRequest}
+	errManifestUnknown     = &namedError{Code: "MANIFEST_UNKNOWN", StatusCode: http.StatusNotFound}
+	errNameInvalid         = &namedError{Code: "NAME_INVALID", StatusCode: http.StatusBadRequest}
+	errNameUnknown         = &namedError{Code: "NAME_UNKNOWN", StatusCode: http.StatusNotFound}
+	errSizeInvalid         = &namedError{Code: "SIZE_INVALID", StatusCode: http.StatusBadRequest}
+	errUnauthorized        = &namedError{Code: "UNAUTHORIZED", StatusCode: http.StatusUnauthorized}
+	errUnsupported         = &namedError{Code: "UNSUPPORTED", StatusCode: http.StatusNotImplemented}
+)
+
+type namedError struct {
+	Code       string
+	StatusCode int
+	Message    string
+}
+
+func (e *namedError) Error() string {
+	return e.Message
+}
+
+// WithMessage creates a new instance of the error with a different message
+func (e *namedError) WithMessage(message string) *namedError {
+	return &namedError{
+		Code:       e.Code,
+		StatusCode: e.StatusCode,
+		Message:    message,
+	}
+}
+
+// WithStatusCode creates a new instance of the error with a different status code
+func (e *namedError) WithStatusCode(statusCode int) *namedError {
+	return &namedError{
+		Code:       e.Code,
+		StatusCode: statusCode,
+		Message:    e.Message,
+	}
+}
diff --git a/routers/api/packages/container/manifest.go b/routers/api/packages/container/manifest.go
new file mode 100644
index 0000000..4a79a58
--- /dev/null
+++ b/routers/api/packages/container/manifest.go
@@ -0,0 +1,483 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+	container_model "code.gitea.io/gitea/models/packages/container"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"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/util"
+	notify_service "code.gitea.io/gitea/services/notify"
+	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
+	Owner      *user_model.User
+	Creator    *user_model.User
+	Image      string
+	Reference  string
+	IsTagged   bool
+	Properties map[string]string
+}
+
+func processManifest(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (string, error) {
+	var index oci.Index
+	if err := json.NewDecoder(buf).Decode(&index); err != nil {
+		return "", err
+	}
+
+	if index.SchemaVersion != 2 {
+		return "", errUnsupported.WithMessage("Schema version is not supported")
+	}
+
+	if _, err := buf.Seek(0, io.SeekStart); err != nil {
+		return "", err
+	}
+
+	if !isValidMediaType(mci.MediaType) {
+		mci.MediaType = index.MediaType
+		if !isValidMediaType(mci.MediaType) {
+			return "", errManifestInvalid.WithMessage("MediaType not recognized")
+		}
+	}
+
+	if isImageManifestMediaType(mci.MediaType) {
+		return processImageManifest(ctx, mci, buf)
+	} else if isImageIndexMediaType(mci.MediaType) {
+		return processImageManifestIndex(ctx, mci, buf)
+	}
+	return "", errManifestInvalid
+}
+
+func processImageManifest(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (string, error) {
+	manifestDigest := ""
+
+	err := func() error {
+		var manifest oci.Manifest
+		if err := json.NewDecoder(buf).Decode(&manifest); err != nil {
+			return err
+		}
+
+		if _, err := buf.Seek(0, io.SeekStart); err != nil {
+			return err
+		}
+
+		ctx, committer, err := db.TxContext(ctx)
+		if err != nil {
+			return err
+		}
+		defer committer.Close()
+
+		configDescriptor, err := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
+			OwnerID: mci.Owner.ID,
+			Image:   mci.Image,
+			Digest:  string(manifest.Config.Digest),
+		})
+		if err != nil {
+			return err
+		}
+
+		configReader, err := packages_module.NewContentStore().Get(packages_module.BlobHash256Key(configDescriptor.Blob.HashSHA256))
+		if err != nil {
+			return err
+		}
+		defer configReader.Close()
+
+		metadata, err := container_module.ParseImageConfig(manifest.Config.MediaType, configReader)
+		if err != nil {
+			return err
+		}
+
+		blobReferences := make([]*blobReference, 0, 1+len(manifest.Layers))
+
+		blobReferences = append(blobReferences, &blobReference{
+			Digest:       manifest.Config.Digest,
+			MediaType:    manifest.Config.MediaType,
+			File:         configDescriptor,
+			ExpectedSize: manifest.Config.Size,
+		})
+
+		for _, layer := range manifest.Layers {
+			pfd, err := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
+				OwnerID: mci.Owner.ID,
+				Image:   mci.Image,
+				Digest:  string(layer.Digest),
+			})
+			if err != nil {
+				return err
+			}
+
+			blobReferences = append(blobReferences, &blobReference{
+				Digest:       layer.Digest,
+				MediaType:    layer.MediaType,
+				File:         pfd,
+				ExpectedSize: layer.Size,
+			})
+		}
+
+		pv, err := createPackageAndVersion(ctx, mci, metadata)
+		if err != nil {
+			return err
+		}
+
+		uploadVersion, err := packages_model.GetInternalVersionByNameAndVersion(ctx, mci.Owner.ID, packages_model.TypeContainer, mci.Image, container_model.UploadVersion)
+		if err != nil && err != packages_model.ErrPackageNotExist {
+			return err
+		}
+
+		for _, ref := range blobReferences {
+			if err := createFileFromBlobReference(ctx, pv, uploadVersion, ref); err != nil {
+				return err
+			}
+		}
+
+		pb, created, digest, err := createManifestBlob(ctx, mci, pv, buf)
+		removeBlob := false
+		defer func() {
+			if removeBlob {
+				contentStore := packages_module.NewContentStore()
+				if err := contentStore.Delete(packages_module.BlobHash256Key(pb.HashSHA256)); err != nil {
+					log.Error("Error deleting package blob from content store: %v", err)
+				}
+			}
+		}()
+		if err != nil {
+			removeBlob = created
+			return err
+		}
+
+		if err := committer.Commit(); err != nil {
+			removeBlob = created
+			return err
+		}
+
+		if err := notifyPackageCreate(ctx, mci.Creator, pv); err != nil {
+			return err
+		}
+
+		manifestDigest = digest
+
+		return nil
+	}()
+	if err != nil {
+		return "", err
+	}
+
+	return manifestDigest, nil
+}
+
+func processImageManifestIndex(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (string, error) {
+	manifestDigest := ""
+
+	err := func() error {
+		var index oci.Index
+		if err := json.NewDecoder(buf).Decode(&index); err != nil {
+			return err
+		}
+
+		if _, err := buf.Seek(0, io.SeekStart); err != nil {
+			return err
+		}
+
+		ctx, committer, err := db.TxContext(ctx)
+		if err != nil {
+			return err
+		}
+		defer committer.Close()
+
+		metadata := &container_module.Metadata{
+			Type:      container_module.TypeOCI,
+			Manifests: make([]*container_module.Manifest, 0, len(index.Manifests)),
+		}
+
+		for _, manifest := range index.Manifests {
+			if !isImageManifestMediaType(manifest.MediaType) {
+				return errManifestInvalid
+			}
+
+			platform := container_module.DefaultPlatform
+			if manifest.Platform != nil {
+				platform = fmt.Sprintf("%s/%s", manifest.Platform.OS, manifest.Platform.Architecture)
+				if manifest.Platform.Variant != "" {
+					platform = fmt.Sprintf("%s/%s", platform, manifest.Platform.Variant)
+				}
+			}
+
+			pfd, err := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
+				OwnerID:    mci.Owner.ID,
+				Image:      mci.Image,
+				Digest:     string(manifest.Digest),
+				IsManifest: true,
+			})
+			if err != nil {
+				if err == container_model.ErrContainerBlobNotExist {
+					return errManifestBlobUnknown
+				}
+				return err
+			}
+
+			size, err := packages_model.CalculateFileSize(ctx, &packages_model.PackageFileSearchOptions{
+				VersionID: pfd.File.VersionID,
+			})
+			if err != nil {
+				return err
+			}
+
+			metadata.Manifests = append(metadata.Manifests, &container_module.Manifest{
+				Platform: platform,
+				Digest:   string(manifest.Digest),
+				Size:     size,
+			})
+		}
+
+		pv, err := createPackageAndVersion(ctx, mci, metadata)
+		if err != nil {
+			return err
+		}
+
+		pb, created, digest, err := createManifestBlob(ctx, mci, pv, buf)
+		removeBlob := false
+		defer func() {
+			if removeBlob {
+				contentStore := packages_module.NewContentStore()
+				if err := contentStore.Delete(packages_module.BlobHash256Key(pb.HashSHA256)); err != nil {
+					log.Error("Error deleting package blob from content store: %v", err)
+				}
+			}
+		}()
+		if err != nil {
+			removeBlob = created
+			return err
+		}
+
+		if err := committer.Commit(); err != nil {
+			removeBlob = created
+			return err
+		}
+
+		if err := notifyPackageCreate(ctx, mci.Creator, pv); err != nil {
+			return err
+		}
+
+		manifestDigest = digest
+
+		return nil
+	}()
+	if err != nil {
+		return "", err
+	}
+
+	return manifestDigest, nil
+}
+
+func notifyPackageCreate(ctx context.Context, doer *user_model.User, pv *packages_model.PackageVersion) error {
+	pd, err := packages_model.GetPackageDescriptor(ctx, pv)
+	if err != nil {
+		return err
+	}
+
+	notify_service.PackageCreate(ctx, doer, pd)
+
+	return nil
+}
+
+func createPackageAndVersion(ctx context.Context, mci *manifestCreationInfo, metadata *container_module.Metadata) (*packages_model.PackageVersion, error) {
+	created := true
+	p := &packages_model.Package{
+		OwnerID:   mci.Owner.ID,
+		Type:      packages_model.TypeContainer,
+		Name:      strings.ToLower(mci.Image),
+		LowerName: strings.ToLower(mci.Image),
+	}
+	var err error
+	if p, err = packages_model.TryInsertPackage(ctx, p); err != nil {
+		if err == packages_model.ErrDuplicatePackage {
+			created = false
+		} else {
+			log.Error("Error inserting package: %v", err)
+			return nil, err
+		}
+	}
+
+	if created {
+		if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypePackage, p.ID, container_module.PropertyRepository, strings.ToLower(mci.Owner.LowerName+"/"+mci.Image)); err != nil {
+			log.Error("Error setting package property: %v", err)
+			return nil, err
+		}
+	}
+
+	metadata.IsTagged = mci.IsTagged
+
+	metadataJSON, err := json.Marshal(metadata)
+	if err != nil {
+		return nil, err
+	}
+
+	_pv := &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		CreatorID:    mci.Creator.ID,
+		Version:      strings.ToLower(mci.Reference),
+		LowerVersion: strings.ToLower(mci.Reference),
+		MetadataJSON: string(metadataJSON),
+	}
+	var pv *packages_model.PackageVersion
+	if pv, err = packages_model.GetOrInsertVersion(ctx, _pv); err != nil {
+		if err == packages_model.ErrDuplicatePackageVersion {
+			if err := packages_service.DeletePackageVersionAndReferences(ctx, pv); err != nil {
+				return nil, err
+			}
+
+			// keep download count on overwrite
+			_pv.DownloadCount = pv.DownloadCount
+
+			if pv, err = packages_model.GetOrInsertVersion(ctx, _pv); err != nil {
+				log.Error("Error inserting package: %v", err)
+				return nil, err
+			}
+		} else {
+			log.Error("Error inserting package: %v", err)
+			return nil, err
+		}
+	}
+
+	if err := packages_service.CheckCountQuotaExceeded(ctx, mci.Creator, mci.Owner); err != nil {
+		return nil, err
+	}
+
+	if mci.IsTagged {
+		if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestTagged, ""); err != nil {
+			log.Error("Error setting package version property: %v", err)
+			return nil, err
+		}
+	}
+	for _, manifest := range metadata.Manifests {
+		if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestReference, manifest.Digest); err != nil {
+			log.Error("Error setting package version property: %v", err)
+			return nil, err
+		}
+	}
+
+	return pv, nil
+}
+
+type blobReference struct {
+	Digest       digest.Digest
+	MediaType    string
+	Name         string
+	File         *packages_model.PackageFileDescriptor
+	ExpectedSize int64
+	IsLead       bool
+}
+
+func createFileFromBlobReference(ctx context.Context, pv, uploadVersion *packages_model.PackageVersion, ref *blobReference) error {
+	if ref.File.Blob.Size != ref.ExpectedSize {
+		return errSizeInvalid
+	}
+
+	if ref.Name == "" {
+		ref.Name = strings.ToLower(fmt.Sprintf("sha256_%s", ref.File.Blob.HashSHA256))
+	}
+
+	pf := &packages_model.PackageFile{
+		VersionID: pv.ID,
+		BlobID:    ref.File.Blob.ID,
+		Name:      ref.Name,
+		LowerName: ref.Name,
+		IsLead:    ref.IsLead,
+	}
+	var err error
+	if pf, err = packages_model.TryInsertFile(ctx, pf); err != nil {
+		if err == packages_model.ErrDuplicatePackageFile {
+			// Skip this blob because the manifest contains the same filesystem layer multiple times.
+			return nil
+		}
+		log.Error("Error inserting package file: %v", err)
+		return err
+	}
+
+	props := map[string]string{
+		container_module.PropertyMediaType: ref.MediaType,
+		container_module.PropertyDigest:    string(ref.Digest),
+	}
+	for name, value := range props {
+		if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeFile, pf.ID, name, value); err != nil {
+			log.Error("Error setting package file property: %v", err)
+			return err
+		}
+	}
+
+	// Remove the file from the blob upload version
+	if uploadVersion != nil && ref.File.File != nil && uploadVersion.ID == ref.File.File.VersionID {
+		if err := packages_service.DeletePackageFile(ctx, ref.File.File); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func createManifestBlob(ctx context.Context, mci *manifestCreationInfo, pv *packages_model.PackageVersion, buf *packages_module.HashedBuffer) (*packages_model.PackageBlob, bool, string, error) {
+	pb, exists, err := packages_model.GetOrInsertBlob(ctx, packages_service.NewPackageBlob(buf))
+	if err != nil {
+		log.Error("Error inserting package blob: %v", err)
+		return nil, false, "", err
+	}
+	// FIXME: Workaround to be removed in v1.20
+	// https://github.com/go-gitea/gitea/issues/19586
+	if exists {
+		err = packages_module.NewContentStore().Has(packages_module.BlobHash256Key(pb.HashSHA256))
+		if err != nil && (errors.Is(err, util.ErrNotExist) || errors.Is(err, os.ErrNotExist)) {
+			log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
+			exists = false
+		}
+	}
+	if !exists {
+		contentStore := packages_module.NewContentStore()
+		if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), buf, buf.Size()); err != nil {
+			log.Error("Error saving package blob in content store: %v", err)
+			return nil, false, "", err
+		}
+	}
+
+	manifestDigest := digestFromHashSummer(buf)
+	err = createFileFromBlobReference(ctx, pv, nil, &blobReference{
+		Digest:       digest.Digest(manifestDigest),
+		MediaType:    mci.MediaType,
+		Name:         container_model.ManifestFilename,
+		File:         &packages_model.PackageFileDescriptor{Blob: pb},
+		ExpectedSize: pb.Size,
+		IsLead:       true,
+	})
+
+	return pb, !exists, manifestDigest, err
+}