30f1b651e2
Use strongly typed errors to set HTTP status codes. Error interfaces are defined in the api/errors package and errors returned from controllers are checked against these interfaces. Errors can be wraeped in a pkg/errors.Causer, as long as somewhere in the line of causes one of the interfaces is implemented. The special error interfaces take precedence over Causer, meaning if both Causer and one of the new error interfaces are implemented, the Causer is not traversed. Signed-off-by: Brian Goff <cpuguy83@gmail.com> Upstream-commit: ebcb7d6b406fe50ea9a237c73004d75884184c33 Component: engine
87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
package daemon
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/docker/distribution/reference"
|
|
"github.com/docker/docker/image"
|
|
"github.com/docker/docker/pkg/stringid"
|
|
)
|
|
|
|
// errImageDoesNotExist is error returned when no image can be found for a reference.
|
|
type errImageDoesNotExist struct {
|
|
ref reference.Reference
|
|
}
|
|
|
|
func (e errImageDoesNotExist) Error() string {
|
|
ref := e.ref
|
|
if named, ok := ref.(reference.Named); ok {
|
|
ref = reference.TagNameOnly(named)
|
|
}
|
|
return fmt.Sprintf("No such image: %s", reference.FamiliarString(ref))
|
|
}
|
|
|
|
func (e errImageDoesNotExist) NotFound() {}
|
|
|
|
// GetImageIDAndPlatform returns an image ID and platform corresponding to the image referred to by
|
|
// refOrID.
|
|
func (daemon *Daemon) GetImageIDAndPlatform(refOrID string) (image.ID, string, error) {
|
|
ref, err := reference.ParseAnyReference(refOrID)
|
|
if err != nil {
|
|
return "", "", validationError{err}
|
|
}
|
|
namedRef, ok := ref.(reference.Named)
|
|
if !ok {
|
|
digested, ok := ref.(reference.Digested)
|
|
if !ok {
|
|
return "", "", errImageDoesNotExist{ref}
|
|
}
|
|
id := image.IDFromDigest(digested.Digest())
|
|
for platform := range daemon.stores {
|
|
if _, err = daemon.stores[platform].imageStore.Get(id); err == nil {
|
|
return id, platform, nil
|
|
}
|
|
}
|
|
return "", "", errImageDoesNotExist{ref}
|
|
}
|
|
|
|
for platform := range daemon.stores {
|
|
if id, err := daemon.stores[platform].referenceStore.Get(namedRef); err == nil {
|
|
return image.IDFromDigest(id), platform, nil
|
|
}
|
|
}
|
|
|
|
// deprecated: repo:shortid https://github.com/docker/docker/pull/799
|
|
if tagged, ok := namedRef.(reference.Tagged); ok {
|
|
if tag := tagged.Tag(); stringid.IsShortID(stringid.TruncateID(tag)) {
|
|
for platform := range daemon.stores {
|
|
if id, err := daemon.stores[platform].imageStore.Search(tag); err == nil {
|
|
for _, storeRef := range daemon.stores[platform].referenceStore.References(id.Digest()) {
|
|
if storeRef.Name() == namedRef.Name() {
|
|
return id, platform, nil
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Search based on ID
|
|
for platform := range daemon.stores {
|
|
if id, err := daemon.stores[platform].imageStore.Search(refOrID); err == nil {
|
|
return id, platform, nil
|
|
}
|
|
}
|
|
|
|
return "", "", errImageDoesNotExist{ref}
|
|
}
|
|
|
|
// GetImage returns an image corresponding to the image referred to by refOrID.
|
|
func (daemon *Daemon) GetImage(refOrID string) (*image.Image, error) {
|
|
imgID, platform, err := daemon.GetImageIDAndPlatform(refOrID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return daemon.stores[platform].imageStore.Get(imgID)
|
|
}
|