package utils import ( "fmt" "net/http" "strings" "github.com/containers/image/v5/docker" "github.com/containers/image/v5/storage" "github.com/containers/image/v5/transports/alltransports" "github.com/containers/image/v5/types" "github.com/containers/podman/v2/libpod" "github.com/containers/podman/v2/libpod/image" "github.com/gorilla/schema" "github.com/pkg/errors" ) // ParseDockerReference parses the specified image name to a // `types.ImageReference` and enforces it to refer to a docker-transport // reference. func ParseDockerReference(name string) (types.ImageReference, error) { dockerPrefix := fmt.Sprintf("%s://", docker.Transport.Name()) imageRef, err := alltransports.ParseImageName(name) if err == nil && imageRef.Transport().Name() != docker.Transport.Name() { return nil, errors.Errorf("reference %q must be a docker reference", name) } else if err != nil { origErr := err imageRef, err = alltransports.ParseImageName(fmt.Sprintf("%s%s", dockerPrefix, name)) if err != nil { return nil, errors.Wrapf(origErr, "reference %q must be a docker reference", name) } } return imageRef, nil } // ParseStorageReference parses the specified image name to a // `types.ImageReference` and enforces it to refer to a // containers-storage-transport reference. func ParseStorageReference(name string) (types.ImageReference, error) { storagePrefix := fmt.Sprintf("%s:", storage.Transport.Name()) imageRef, err := alltransports.ParseImageName(name) if err == nil && imageRef.Transport().Name() != docker.Transport.Name() { return nil, errors.Errorf("reference %q must be a storage reference", name) } else if err != nil { origErr := err imageRef, err = alltransports.ParseImageName(fmt.Sprintf("%s%s", storagePrefix, name)) if err != nil { return nil, errors.Wrapf(origErr, "reference %q must be a storage reference", name) } } return imageRef, nil } // GetImages is a common function used to get images for libpod and other compatibility // mechanisms func GetImages(w http.ResponseWriter, r *http.Request) ([]*image.Image, error) { decoder := r.Context().Value("decoder").(*schema.Decoder) runtime := r.Context().Value("runtime").(*libpod.Runtime) query := struct { All bool Filters map[string][]string `schema:"filters"` Digests bool Filter string // Docker 1.24 compatibility }{ // This is where you can override the golang default value for one of fields } if err := decoder.Decode(&query, r.URL.Query()); err != nil { return nil, err } var filters = []string{} if _, found := r.URL.Query()["digests"]; found && query.Digests { UnSupportedParameter("digests") } var ( images []*image.Image err error ) queryFilters := query.Filters if !IsLibpodRequest(r) && len(query.Filter) > 0 { // Docker 1.24 compatibility if queryFilters == nil { queryFilters = make(map[string][]string) } queryFilters["reference"] = append(queryFilters["reference"], query.Filter) } if len(queryFilters) > 0 { for k, v := range queryFilters { filters = append(filters, fmt.Sprintf("%s=%s", k, strings.Join(v, "="))) } images, err = runtime.ImageRuntime().GetImagesWithFilters(filters) if err != nil { return images, err } } else { images, err = runtime.ImageRuntime().GetImages() if err != nil { return images, err } } if query.All { return images, nil } returnImages := []*image.Image{} for _, img := range images { if len(img.Names()) == 0 { parent, err := img.IsParent(r.Context()) if err != nil { return nil, err } if parent { continue } } returnImages = append(returnImages, img) } return returnImages, nil } func GetImage(r *http.Request, name string) (*image.Image, error) { runtime := r.Context().Value("runtime").(*libpod.Runtime) return runtime.ImageRuntime().NewFromLocal(name) }