40273b1d36
This changeset implements immutable manifest references via the HTTP API. Most of the changes follow from modifications to ManifestService. Once updates were made across the repo to implement these changes, the http handlers were change accordingly. The new methods on ManifestService will be broken out into a tagging service in a later PR. Unfortunately, due to complexities around managing the manifest tag index in an eventually consistent manner, direct deletes of manifests have been disabled. Signed-off-by: Stephen J Day <stephen.day@docker.com>
90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
package handlers
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
|
|
"github.com/docker/distribution"
|
|
ctxu "github.com/docker/distribution/context"
|
|
"github.com/docker/distribution/digest"
|
|
"github.com/docker/distribution/registry/api/v2"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
// Context should contain the request specific context for use in across
|
|
// handlers. Resources that don't need to be shared across handlers should not
|
|
// be on this object.
|
|
type Context struct {
|
|
// App points to the application structure that created this context.
|
|
*App
|
|
context.Context
|
|
|
|
// Repository is the repository for the current request. All requests
|
|
// should be scoped to a single repository. This field may be nil.
|
|
Repository distribution.Repository
|
|
|
|
// Errors is a collection of errors encountered during the request to be
|
|
// returned to the client API. If errors are added to the collection, the
|
|
// handler *must not* start the response via http.ResponseWriter.
|
|
Errors v2.Errors
|
|
|
|
urlBuilder *v2.URLBuilder
|
|
|
|
// TODO(stevvooe): The goal is too completely factor this context and
|
|
// dispatching out of the web application. Ideally, we should lean on
|
|
// context.Context for injection of these resources.
|
|
}
|
|
|
|
// Value overrides context.Context.Value to ensure that calls are routed to
|
|
// correct context.
|
|
func (ctx *Context) Value(key interface{}) interface{} {
|
|
return ctx.Context.Value(key)
|
|
}
|
|
|
|
func getName(ctx context.Context) (name string) {
|
|
return ctxu.GetStringValue(ctx, "vars.name")
|
|
}
|
|
|
|
func getReference(ctx context.Context) (reference string) {
|
|
return ctxu.GetStringValue(ctx, "vars.reference")
|
|
}
|
|
|
|
var errDigestNotAvailable = fmt.Errorf("digest not available in context")
|
|
|
|
func getDigest(ctx context.Context) (dgst digest.Digest, err error) {
|
|
dgstStr := ctxu.GetStringValue(ctx, "vars.digest")
|
|
|
|
if dgstStr == "" {
|
|
ctxu.GetLogger(ctx).Errorf("digest not available")
|
|
return "", errDigestNotAvailable
|
|
}
|
|
|
|
d, err := digest.ParseDigest(dgstStr)
|
|
if err != nil {
|
|
ctxu.GetLogger(ctx).Errorf("error parsing digest=%q: %v", dgstStr, err)
|
|
return "", err
|
|
}
|
|
|
|
return d, nil
|
|
}
|
|
|
|
func getUploadUUID(ctx context.Context) (uuid string) {
|
|
return ctxu.GetStringValue(ctx, "vars.uuid")
|
|
}
|
|
|
|
// getUserName attempts to resolve a username from the context and request. If
|
|
// a username cannot be resolved, the empty string is returned.
|
|
func getUserName(ctx context.Context, r *http.Request) string {
|
|
username := ctxu.GetStringValue(ctx, "auth.user.name")
|
|
|
|
// Fallback to request user with basic auth
|
|
if username == "" {
|
|
var ok bool
|
|
uname, _, ok := basicAuth(r)
|
|
if ok {
|
|
username = uname
|
|
}
|
|
}
|
|
|
|
return username
|
|
}
|