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routes.go
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// @title Open Container Initiative Distribution Specification
// @version v1.1.0-dev
// @description APIs for Open Container Initiative Distribution Specification
// @license.name Apache 2.0
// @license.url http://www.apache.org/licenses/LICENSE-2.0.html
package api
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"path"
"regexp"
"sort"
"strconv"
"strings"
"time"
guuid "github.com/gofrs/uuid"
"github.com/google/go-github/v52/github"
"github.com/gorilla/mux"
jsoniter "github.com/json-iterator/go"
"github.com/opencontainers/distribution-spec/specs-go/v1/extensions"
godigest "github.com/opencontainers/go-digest"
ispec "github.com/opencontainers/image-spec/specs-go/v1"
artifactspec "github.com/oras-project/artifacts-spec/specs-go/v1"
"github.com/zitadel/oidc/pkg/client/rp"
"github.com/zitadel/oidc/pkg/oidc"
zerr "zotregistry.io/zot/errors"
"zotregistry.io/zot/pkg/api/config"
"zotregistry.io/zot/pkg/api/constants"
apiErr "zotregistry.io/zot/pkg/api/errors"
zcommon "zotregistry.io/zot/pkg/common"
gqlPlayground "zotregistry.io/zot/pkg/debug/gqlplayground"
debug "zotregistry.io/zot/pkg/debug/swagger"
ext "zotregistry.io/zot/pkg/extensions"
syncConstants "zotregistry.io/zot/pkg/extensions/sync/constants"
"zotregistry.io/zot/pkg/log"
"zotregistry.io/zot/pkg/meta"
mTypes "zotregistry.io/zot/pkg/meta/types"
zreg "zotregistry.io/zot/pkg/regexp"
localCtx "zotregistry.io/zot/pkg/requestcontext"
storageCommon "zotregistry.io/zot/pkg/storage/common"
storageTypes "zotregistry.io/zot/pkg/storage/types"
"zotregistry.io/zot/pkg/test/inject"
)
type RouteHandler struct {
c *Controller
}
func NewRouteHandler(c *Controller) *RouteHandler {
rh := &RouteHandler{c: c}
rh.SetupRoutes()
return rh
}
func (rh *RouteHandler) SetupRoutes() {
// first get Auth middleware in order to first setup openid/ldap/htpasswd, before oidc provider routes are setup
authHandler := AuthHandler(rh.c)
applyCORSHeaders := getCORSHeadersHandler(rh.c.Config.HTTP.AllowOrigin)
if rh.c.Config.IsOpenIDAuthEnabled() {
// login path for openID
rh.c.Router.HandleFunc(constants.LoginPath, rh.AuthURLHandler())
// callback path for openID
for provider, relyingParty := range rh.c.RelyingParties {
if config.IsOauth2Supported(provider) {
rh.c.Router.HandleFunc(constants.CallbackBasePath+fmt.Sprintf("/%s", provider),
rp.CodeExchangeHandler(rh.GithubCodeExchangeCallback(), relyingParty))
} else if config.IsOpenIDSupported(provider) {
rh.c.Router.HandleFunc(constants.CallbackBasePath+fmt.Sprintf("/%s", provider),
rp.CodeExchangeHandler(rp.UserinfoCallback(rh.OpenIDCodeExchangeCallback()), relyingParty))
}
}
}
if rh.c.Config.IsAPIKeyEnabled() {
// enable api key management urls
apiKeyRouter := rh.c.Router.PathPrefix(constants.APIKeyPath).Subrouter()
apiKeyRouter.Use(authHandler)
apiKeyRouter.Use(BaseAuthzHandler(rh.c))
apiKeyRouter.Use(zcommon.ACHeadersMiddleware(rh.c.Config,
http.MethodPost, http.MethodDelete, http.MethodOptions))
apiKeyRouter.Use(zcommon.CORSHeadersMiddleware(rh.c.Config.HTTP.AllowOrigin))
apiKeyRouter.Methods(http.MethodPost, http.MethodOptions).HandlerFunc(rh.CreateAPIKey)
apiKeyRouter.Methods(http.MethodDelete).HandlerFunc(rh.RevokeAPIKey)
}
/* on every route which may be used by UI we set OPTIONS as allowed METHOD
to enable preflight request from UI to backend */
if rh.c.Config.IsBasicAuthnEnabled() {
// logout path for openID
rh.c.Router.HandleFunc(constants.LogoutPath,
getUIHeadersHandler(rh.c.Config, http.MethodPost, http.MethodOptions)(applyCORSHeaders(rh.Logout))).
Methods(http.MethodPost, http.MethodOptions)
}
prefixedRouter := rh.c.Router.PathPrefix(constants.RoutePrefix).Subrouter()
prefixedRouter.Use(authHandler)
prefixedDistSpecRouter := prefixedRouter.NewRoute().Subrouter()
// authz is being enabled if AccessControl is specified
// if Authn is not present AccessControl will have only default policies
if rh.c.Config.HTTP.AccessControl != nil {
if rh.c.Config.IsBasicAuthnEnabled() {
rh.c.Log.Info().Msg("access control is being enabled")
} else {
rh.c.Log.Info().Msg("anonymous policy only access control is being enabled")
}
prefixedRouter.Use(BaseAuthzHandler(rh.c))
prefixedDistSpecRouter.Use(DistSpecAuthzHandler(rh.c))
}
// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#endpoints
{
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/tags/list", zreg.NameRegexp.String()),
getUIHeadersHandler(rh.c.Config, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.ListTags))).Methods(http.MethodGet, http.MethodOptions)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/manifests/{reference}", zreg.NameRegexp.String()),
getUIHeadersHandler(rh.c.Config, http.MethodHead, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.CheckManifest))).Methods(http.MethodHead, http.MethodOptions)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/manifests/{reference}", zreg.NameRegexp.String()),
applyCORSHeaders(rh.GetManifest)).Methods(http.MethodGet)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/manifests/{reference}", zreg.NameRegexp.String()),
rh.UpdateManifest).Methods(http.MethodPut)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/manifests/{reference}", zreg.NameRegexp.String()),
rh.DeleteManifest).Methods(http.MethodDelete)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/{digest}", zreg.NameRegexp.String()),
rh.CheckBlob).Methods(http.MethodHead)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/{digest}", zreg.NameRegexp.String()),
rh.GetBlob).Methods(http.MethodGet)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/{digest}", zreg.NameRegexp.String()),
rh.DeleteBlob).Methods(http.MethodDelete)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/uploads/", zreg.NameRegexp.String()),
rh.CreateBlobUpload).Methods(http.MethodPost)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/uploads/{session_id}", zreg.NameRegexp.String()),
rh.GetBlobUpload).Methods(http.MethodGet)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/uploads/{session_id}", zreg.NameRegexp.String()),
rh.PatchBlobUpload).Methods(http.MethodPatch)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/uploads/{session_id}", zreg.NameRegexp.String()),
rh.UpdateBlobUpload).Methods(http.MethodPut)
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/blobs/uploads/{session_id}", zreg.NameRegexp.String()),
rh.DeleteBlobUpload).Methods(http.MethodDelete)
// support for OCI artifact references
prefixedDistSpecRouter.HandleFunc(fmt.Sprintf("/{name:%s}/referrers/{digest}", zreg.NameRegexp.String()),
getUIHeadersHandler(rh.c.Config, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.GetReferrers))).Methods(http.MethodGet, http.MethodOptions)
prefixedRouter.HandleFunc(constants.ExtCatalogPrefix,
getUIHeadersHandler(rh.c.Config, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.ListRepositories))).Methods(http.MethodGet, http.MethodOptions)
prefixedRouter.HandleFunc(constants.ExtOciDiscoverPrefix,
getUIHeadersHandler(rh.c.Config, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.ListExtensions))).Methods(http.MethodGet, http.MethodOptions)
prefixedRouter.HandleFunc("/",
getUIHeadersHandler(rh.c.Config, http.MethodGet, http.MethodOptions)(
applyCORSHeaders(rh.CheckVersionSupport))).Methods(http.MethodGet, http.MethodOptions)
}
// support for ORAS artifact reference types (alpha 1) - image signature use case
rh.c.Router.HandleFunc(fmt.Sprintf("%s/{name:%s}/manifests/{digest}/referrers",
constants.ArtifactSpecRoutePrefix, zreg.NameRegexp.String()), rh.GetOrasReferrers).Methods("GET")
// swagger
debug.SetupSwaggerRoutes(rh.c.Config, rh.c.Router, authHandler, rh.c.Log)
// gql playground
gqlPlayground.SetupGQLPlaygroundRoutes(prefixedRouter, rh.c.StoreController, rh.c.Log)
// setup extension routes
if rh.c.Config != nil {
// This logic needs to be reviewed, it should depend on build options
// not the general presence of the extensions in config
if rh.c.Config.Extensions == nil {
// minimal build
prefixedRouter.HandleFunc("/metrics", rh.GetMetrics).Methods("GET")
} else {
// extended build
ext.SetupMetricsRoutes(rh.c.Config, rh.c.Router, authHandler, rh.c.Log)
}
}
// Preconditions for enabling the actual extension routes are part of extensions themselves
ext.SetupSearchRoutes(rh.c.Config, prefixedRouter, rh.c.StoreController, rh.c.MetaDB, rh.c.CveInfo,
rh.c.Log)
ext.SetupImageTrustRoutes(rh.c.Config, prefixedRouter, rh.c.Log)
ext.SetupMgmtRoutes(rh.c.Config, prefixedRouter, rh.c.Log)
ext.SetupUserPreferencesRoutes(rh.c.Config, prefixedRouter, rh.c.MetaDB, rh.c.Log)
// last should always be UI because it will setup a http.FileServer and paths will be resolved by this FileServer.
ext.SetupUIRoutes(rh.c.Config, rh.c.Router, rh.c.Log)
}
func getCORSHeadersHandler(allowOrigin string) func(http.HandlerFunc) http.HandlerFunc {
return func(next http.HandlerFunc) http.HandlerFunc {
return http.HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
zcommon.AddCORSHeaders(allowOrigin, response)
next.ServeHTTP(response, request)
})
}
}
func getUIHeadersHandler(config *config.Config, allowedMethods ...string) func(http.HandlerFunc) http.HandlerFunc {
allowedMethodsValue := strings.Join(allowedMethods, ",")
return func(next http.HandlerFunc) http.HandlerFunc {
return http.HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
response.Header().Set("Access-Control-Allow-Methods", allowedMethodsValue)
response.Header().Set("Access-Control-Allow-Headers",
"Authorization,content-type,"+constants.SessionClientHeaderName)
if config.IsBasicAuthnEnabled() {
response.Header().Set("Access-Control-Allow-Credentials", "true")
}
next.ServeHTTP(response, request)
})
}
}
// Method handlers
// CheckVersionSupport godoc
// @Summary Check API support
// @Description Check if this API version is supported
// @Router /v2/ [get]
// @Accept json
// @Produce json
// @Success 200 {string} string "ok".
func (rh *RouteHandler) CheckVersionSupport(response http.ResponseWriter, request *http.Request) {
if request.Method == http.MethodOptions {
return
}
response.Header().Set(constants.DistAPIVersion, "registry/2.0")
// NOTE: compatibility workaround - return this header in "allowed-read" mode to allow for clients to
// work correctly
if rh.c.Config.HTTP.Auth != nil {
// don't send auth headers if request is coming from UI
if request.Header.Get(constants.SessionClientHeaderName) != constants.SessionClientHeaderValue {
if rh.c.Config.HTTP.Auth.Bearer != nil {
response.Header().Set("WWW-Authenticate", fmt.Sprintf("bearer realm=%s", rh.c.Config.HTTP.Auth.Bearer.Realm))
} else {
response.Header().Set("WWW-Authenticate", fmt.Sprintf("basic realm=%s", rh.c.Config.HTTP.Realm))
}
}
}
zcommon.WriteData(response, http.StatusOK, "application/json", []byte{})
}
type ImageTags struct {
Name string `json:"name"`
Tags []string `json:"tags"`
}
// ListTags godoc
// @Summary List image tags
// @Description List all image tags in a repository
// @Router /v2/{name}/tags/list [get]
// @Accept json
// @Produce json
// @Param name path string true "test"
// @Param n query integer true "limit entries for pagination"
// @Param last query string true "last tag value for pagination"
// @Success 200 {object} api.ImageTags
// @Failure 404 {string} string "not found"
// @Failure 400 {string} string "bad request".
func (rh *RouteHandler) ListTags(response http.ResponseWriter, request *http.Request) {
if request.Method == http.MethodOptions {
return
}
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
paginate := false
numTags := -1
nQuery, ok := request.URL.Query()["n"]
if ok {
if len(nQuery) != 1 {
response.WriteHeader(http.StatusBadRequest)
return
}
var nQuery1 int64
var err error
if nQuery1, err = strconv.ParseInt(nQuery[0], 10, 0); err != nil {
response.WriteHeader(http.StatusBadRequest)
return
}
numTags = int(nQuery1)
paginate = true
}
last := ""
lastQuery, ok := request.URL.Query()["last"]
if ok {
if len(lastQuery) != 1 {
response.WriteHeader(http.StatusBadRequest)
return
}
last = lastQuery[0]
}
tags, err := imgStore.GetImageTags(name)
if err != nil {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
return
}
if paginate && (numTags < len(tags)) {
sort.Strings(tags)
pTags := ImageTags{Name: name}
if last == "" {
// first
pTags.Tags = tags[:numTags]
} else {
// next
var i int
found := false
for idx, tag := range tags {
if tag == last {
found = true
i = idx
break
}
}
if !found {
response.WriteHeader(http.StatusNotFound)
return
}
if numTags >= len(tags)-i {
pTags.Tags = tags[i+1:]
zcommon.WriteJSON(response, http.StatusOK, pTags)
return
}
pTags.Tags = tags[i+1 : i+1+numTags]
}
if len(pTags.Tags) == 0 {
last = ""
} else {
last = pTags.Tags[len(pTags.Tags)-1]
}
response.Header().Set("Link", fmt.Sprintf("/v2/%s/tags/list?n=%d&last=%s; rel=\"next\"", name, numTags, last))
zcommon.WriteJSON(response, http.StatusOK, pTags)
return
}
zcommon.WriteJSON(response, http.StatusOK, ImageTags{Name: name, Tags: tags})
}
// CheckManifest godoc
// @Summary Check image manifest
// @Description Check an image's manifest given a reference or a digest
// @Router /v2/{name}/manifests/{reference} [head]
// @Accept json
// @Produce json
// @Param name path string true "repository name"
// @Param reference path string true "image reference or digest"
// @Success 200 {string} string "ok"
// @Header 200 {object} cosntants.DistContentDigestKey
// @Failure 404 {string} string "not found"
// @Failure 500 {string} string "internal server error".
func (rh *RouteHandler) CheckManifest(response http.ResponseWriter, request *http.Request) {
if request.Method == http.MethodOptions {
return
}
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
reference, ok := vars["reference"]
if !ok || reference == "" {
zcommon.WriteJSON(response,
http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"reference": reference})))
return
}
content, digest, mediaType, err := getImageManifest(rh, imgStore, name, reference) //nolint:contextcheck
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrManifestNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
} else {
rh.c.Log.Error().Err(err).Msg("unexpected error")
zcommon.WriteJSON(response, http.StatusInternalServerError,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"reference": reference})))
}
return
}
response.Header().Set(constants.DistContentDigestKey, digest.String())
response.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
response.Header().Set("Content-Type", mediaType)
response.WriteHeader(http.StatusOK)
}
// NOTE: https://github.com/swaggo/swag/issues/387.
type ImageManifest struct {
ispec.Manifest
}
type ExtensionList struct {
extensions.ExtensionList
}
// GetManifest godoc
// @Summary Get image manifest
// @Description Get an image's manifest given a reference or a digest
// @Accept json
// @Produce application/vnd.oci.image.manifest.v1+json
// @Param name path string true "repository name"
// @Param reference path string true "image reference or digest"
// @Success 200 {object} api.ImageManifest
// @Header 200 {object} constants.DistContentDigestKey
// @Failure 404 {string} string "not found"
// @Failure 500 {string} string "internal server error"
// @Router /v2/{name}/manifests/{reference} [get].
func (rh *RouteHandler) GetManifest(response http.ResponseWriter, request *http.Request) {
if rh.c.Config.IsBasicAuthnEnabled() {
response.Header().Set("Access-Control-Allow-Credentials", "true")
}
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
reference, ok := vars["reference"]
if !ok || reference == "" {
zcommon.WriteJSON(response,
http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
return
}
content, digest, mediaType, err := getImageManifest(rh, imgStore, name, reference) //nolint: contextcheck
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrRepoBadVersion) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrManifestNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
} else {
rh.c.Log.Error().Err(err).Msg("unexpected error")
response.WriteHeader(http.StatusInternalServerError)
}
return
}
if rh.c.MetaDB != nil {
err := meta.OnGetManifest(name, reference, content, rh.c.StoreController, rh.c.MetaDB, rh.c.Log)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
return
}
}
response.Header().Set(constants.DistContentDigestKey, digest.String())
response.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
response.Header().Set("Content-Type", mediaType)
zcommon.WriteData(response, http.StatusOK, mediaType, content)
}
type ImageIndex struct {
ispec.Index
}
func getReferrers(routeHandler *RouteHandler,
imgStore storageTypes.ImageStore, name string, digest godigest.Digest,
artifactTypes []string,
) (ispec.Index, error) {
refs, err := imgStore.GetReferrers(name, digest, artifactTypes)
if err != nil || len(refs.Manifests) == 0 {
if isSyncOnDemandEnabled(*routeHandler.c) {
routeHandler.c.Log.Info().Str("repository", name).Str("reference", digest.String()).
Msg("referrers not found, trying to get reference by syncing on demand")
if errSync := routeHandler.c.SyncOnDemand.SyncReference(name, digest.String(), syncConstants.OCI); errSync != nil {
routeHandler.c.Log.Err(errSync).Str("repository", name).Str("reference", digest.String()).
Msg("error encounter while syncing OCI reference for image")
}
refs, err = imgStore.GetReferrers(name, digest, artifactTypes)
}
}
return refs, err
}
// GetReferrers godoc
// @Summary Get referrers for a given digest
// @Description Get referrers given a digest
// @Accept json
// @Produce application/vnd.oci.image.index.v1+json
// @Param name path string true "repository name"
// @Param digest path string true "digest"
// @Param artifactType query string false "artifact type"
// @Success 200 {object} api.ImageIndex
// @Failure 404 {string} string "not found"
// @Failure 500 {string} string "internal server error"
// @Router /v2/{name}/referrers/{digest} [get].
func (rh *RouteHandler) GetReferrers(response http.ResponseWriter, request *http.Request) {
if request.Method == http.MethodOptions {
return
}
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
digestStr, ok := vars["digest"]
digest, err := godigest.Parse(digestStr)
if !ok || digestStr == "" || err != nil {
response.WriteHeader(http.StatusBadRequest)
return
}
// filter by artifact type (more than one can be specified)
artifactTypes := request.URL.Query()["artifactType"]
rh.c.Log.Info().Str("digest", digest.String()).Interface("artifactType", artifactTypes).Msg("getting manifest")
imgStore := rh.getImageStore(name)
referrers, err := getReferrers(rh, imgStore, name, digest, artifactTypes)
if err != nil {
if errors.Is(err, zerr.ErrManifestNotFound) || errors.Is(err, zerr.ErrRepoNotFound) {
rh.c.Log.Error().Err(err).Str("name", name).Str("digest", digest.String()).Msg("manifest not found")
response.WriteHeader(http.StatusNotFound)
} else {
rh.c.Log.Error().Err(err).Str("name", name).Str("digest", digest.String()).Msg("unable to get references")
response.WriteHeader(http.StatusInternalServerError)
}
return
}
out, err := json.Marshal(referrers)
if err != nil {
rh.c.Log.Error().Err(err).Str("name", name).Str("digest", digest.String()).Msg("unable to marshal json")
response.WriteHeader(http.StatusInternalServerError)
return
}
if len(artifactTypes) > 0 {
// currently, the only filter supported and on this end-point
response.Header().Set("OCI-Filters-Applied", "artifactType")
}
zcommon.WriteData(response, http.StatusOK, ispec.MediaTypeImageIndex, out)
}
// UpdateManifest godoc
// @Summary Update image manifest
// @Description Update an image's manifest given a reference or a digest
// @Accept json
// @Produce json
// @Param name path string true "repository name"
// @Param reference path string true "image reference or digest"
// @Header 201 {object} constants.DistContentDigestKey
// @Success 201 {string} string "created"
// @Failure 400 {string} string "bad request"
// @Failure 404 {string} string "not found"
// @Failure 500 {string} string "internal server error"
// @Router /v2/{name}/manifests/{reference} [put].
func (rh *RouteHandler) UpdateManifest(response http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
reference, ok := vars["reference"]
if !ok || reference == "" {
zcommon.WriteJSON(response,
http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"reference": reference})))
return
}
mediaType := request.Header.Get("Content-Type")
if !storageCommon.IsSupportedMediaType(mediaType) {
// response.WriteHeader(http.StatusUnsupportedMediaType)
zcommon.WriteJSON(response, http.StatusUnsupportedMediaType,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"mediaType": mediaType})))
return
}
body, err := io.ReadAll(request.Body)
// hard to reach test case, injected error (simulates an interrupted image manifest upload)
// err could be io.ErrUnexpectedEOF
if err := inject.Error(err); err != nil {
rh.c.Log.Error().Err(err).Msg("unexpected error")
response.WriteHeader(http.StatusInternalServerError)
return
}
digest, subjectDigest, err := imgStore.PutImageManifest(name, reference, mediaType, body)
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrManifestNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrBadManifest) {
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrBlobNotFound) {
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.BLOB_UNKNOWN, map[string]string{"blob": digest.String()})))
} else if errors.Is(err, zerr.ErrRepoBadVersion) {
zcommon.WriteJSON(response, http.StatusInternalServerError,
apiErr.NewErrorList(apiErr.NewError(apiErr.INVALID_INDEX, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrImageLintAnnotations) {
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(
apiErr.MANIFEST_INVALID, map[string]string{"reference": reference}).WithMessage(err.Error())))
} else {
// could be syscall.EMFILE (Err:0x18 too many opened files), etc
rh.c.Log.Error().Err(err).Msg("unexpected error: performing cleanup")
if err = imgStore.DeleteImageManifest(name, reference, false); err != nil {
// deletion of image manifest is important, but not critical for image repo consistancy
// in the worst scenario a partial manifest file written to disk will not affect the repo because
// the new manifest was not added to "index.json" file (it is possible that GC will take care of it)
rh.c.Log.Error().Err(err).Str("repository", name).Str("reference", reference).
Msg("couldn't remove image manifest in repo")
}
response.WriteHeader(http.StatusInternalServerError)
}
return
}
if rh.c.MetaDB != nil {
err := meta.OnUpdateManifest(name, reference, mediaType, digest, body, rh.c.StoreController, rh.c.MetaDB,
rh.c.Log)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
return
}
}
if subjectDigest.String() != "" {
response.Header().Set(constants.SubjectDigestKey, subjectDigest.String())
}
response.Header().Set("Location", fmt.Sprintf("/v2/%s/manifests/%s", name, digest))
response.Header().Set(constants.DistContentDigestKey, digest.String())
response.WriteHeader(http.StatusCreated)
}
// DeleteManifest godoc
// @Summary Delete image manifest
// @Description Delete an image's manifest given a reference or a digest
// @Accept json
// @Produce json
// @Param name path string true "repository name"
// @Param reference path string true "image reference or digest"
// @Success 200 {string} string "ok"
// @Router /v2/{name}/manifests/{reference} [delete].
func (rh *RouteHandler) DeleteManifest(response http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
reference, ok := vars["reference"]
if !ok || reference == "" {
response.WriteHeader(http.StatusNotFound)
return
}
// authz request context (set in authz middleware)
acCtx, err := localCtx.GetAccessControlContext(request.Context())
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
return
}
var detectCollision bool
if acCtx != nil {
detectCollision = acCtx.CanDetectManifestCollision(name)
}
manifestBlob, manifestDigest, mediaType, err := imgStore.GetImageManifest(name, reference)
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrManifestNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrBadManifest) {
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.UNSUPPORTED, map[string]string{"reference": reference})))
} else {
rh.c.Log.Error().Err(err).Msg("unexpected error")
response.WriteHeader(http.StatusInternalServerError)
}
return
}
err = imgStore.DeleteImageManifest(name, reference, detectCollision)
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrManifestNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_UNKNOWN, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrManifestConflict) {
zcommon.WriteJSON(response, http.StatusConflict,
apiErr.NewErrorList(apiErr.NewError(apiErr.MANIFEST_INVALID, map[string]string{"reference": reference})))
} else if errors.Is(err, zerr.ErrBadManifest) {
zcommon.WriteJSON(response, http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.UNSUPPORTED, map[string]string{"reference": reference})))
} else {
rh.c.Log.Error().Err(err).Msg("unexpected error")
response.WriteHeader(http.StatusInternalServerError)
}
return
}
if rh.c.MetaDB != nil {
err := meta.OnDeleteManifest(name, reference, mediaType, manifestDigest, manifestBlob,
rh.c.StoreController, rh.c.MetaDB, rh.c.Log)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
return
}
}
response.WriteHeader(http.StatusAccepted)
}
// CheckBlob godoc
// @Summary Check image blob/layer
// @Description Check an image's blob/layer given a digest
// @Accept json
// @Produce json
// @Param name path string true "repository name"
// @Param digest path string true "blob/layer digest"
// @Success 200 {object} api.ImageManifest
// @Header 200 {object} constants.DistContentDigestKey
// @Router /v2/{name}/blobs/{digest} [head].
func (rh *RouteHandler) CheckBlob(response http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
digestStr, ok := vars["digest"]
if !ok || digestStr == "" {
response.WriteHeader(http.StatusNotFound)
return
}
digest := godigest.Digest(digestStr)
ok, blen, err := imgStore.CheckBlob(name, digest)
if err != nil {
if errors.Is(err, zerr.ErrBadBlobDigest) { //nolint:gocritic // errorslint conflicts with gocritic:IfElseChain
zcommon.WriteJSON(response,
http.StatusBadRequest,
apiErr.NewErrorList(apiErr.NewError(apiErr.DIGEST_INVALID, map[string]string{"digest": digest.String()})))
} else if errors.Is(err, zerr.ErrRepoNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.NAME_UNKNOWN, map[string]string{"name": name})))
} else if errors.Is(err, zerr.ErrBlobNotFound) {
zcommon.WriteJSON(response, http.StatusNotFound,
apiErr.NewErrorList(apiErr.NewError(apiErr.BLOB_UNKNOWN,
map[string]string{"digest": digest.String()})))
} else {
rh.c.Log.Error().Err(err).Msg("unexpected error")
response.WriteHeader(http.StatusInternalServerError)
}
return
}
if !ok {
zcommon.WriteJSON(response, http.StatusNotFound, apiErr.NewErrorList(apiErr.NewError(apiErr.BLOB_UNKNOWN,
map[string]string{"digest": digest.String()})))
return
}
response.Header().Set("Content-Length", fmt.Sprintf("%d", blen))
response.Header().Set("Accept-Ranges", "bytes")
response.Header().Set(constants.DistContentDigestKey, digest.String())
response.WriteHeader(http.StatusOK)
}
/* parseRangeHeader validates the "Range" HTTP header and returns the range. */
func parseRangeHeader(contentRange string) (int64, int64, error) {
/* bytes=<start>- and bytes=<start>-<end> formats are supported */
pattern := `bytes=(?P<rangeFrom>\d+)-(?P<rangeTo>\d*$)`
regex, err := regexp.Compile(pattern)
if err != nil {
return -1, -1, zerr.ErrParsingHTTPHeader
}
match := regex.FindStringSubmatch(contentRange)
paramsMap := make(map[string]string)
for i, name := range regex.SubexpNames() {
if i > 0 && i <= len(match) {
paramsMap[name] = match[i]
}
}
var from int64
to := int64(-1)
rangeFrom := paramsMap["rangeFrom"]
if rangeFrom == "" {
return -1, -1, zerr.ErrParsingHTTPHeader
}
if from, err = strconv.ParseInt(rangeFrom, 10, 64); err != nil {
return -1, -1, zerr.ErrParsingHTTPHeader
}
rangeTo := paramsMap["rangeTo"]
if rangeTo != "" {
if to, err = strconv.ParseInt(rangeTo, 10, 64); err != nil {
return -1, -1, zerr.ErrParsingHTTPHeader
}
if to < from {
return -1, -1, zerr.ErrParsingHTTPHeader
}
}
return from, to, nil
}
// GetBlob godoc
// @Summary Get image blob/layer
// @Description Get an image's blob/layer given a digest
// @Accept json
// @Produce application/vnd.oci.image.layer.v1.tar+gzip
// @Param name path string true "repository name"
// @Param digest path string true "blob/layer digest"
// @Header 200 {object} constants.DistContentDigestKey
// @Success 200 {object} api.ImageManifest
// @Router /v2/{name}/blobs/{digest} [get].
func (rh *RouteHandler) GetBlob(response http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
name, ok := vars["name"]
if !ok || name == "" {
response.WriteHeader(http.StatusNotFound)
return
}
imgStore := rh.getImageStore(name)
digestStr, ok := vars["digest"]
if !ok || digestStr == "" {
response.WriteHeader(http.StatusNotFound)
return
}
digest := godigest.Digest(digestStr)
mediaType := request.Header.Get("Accept")
/* content range is supported for resumbale pulls */
partial := false
var from, to int64
var err error
contentRange := request.Header.Get("Range")
_, ok = request.Header["Range"]
if ok && contentRange == "" {
response.WriteHeader(http.StatusRequestedRangeNotSatisfiable)
return
}
if contentRange != "" {