forked from TrueCloudLab/distribution
1d33874951
Go 1.13 and up enforce import paths to be versioned if a project contains a go.mod and has released v2 or up. The current v2.x branches (and releases) do not yet have a go.mod, and therefore are still allowed to be imported with a non-versioned import path (go modules add a `+incompatible` annotation in that case). However, now that this project has a `go.mod` file, incompatible import paths will not be accepted by go modules, and attempting to use code from this repository will fail. This patch uses `v3` for the import-paths (not `v2`), because changing import paths itself is a breaking change, which means that the next release should increment the "major" version to comply with SemVer (as go modules dictate). Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
package proxy
|
|
|
|
import (
|
|
"net/http"
|
|
"net/url"
|
|
"strings"
|
|
|
|
"github.com/distribution/distribution/v3/context"
|
|
"github.com/distribution/distribution/v3/registry/client/auth"
|
|
"github.com/distribution/distribution/v3/registry/client/auth/challenge"
|
|
)
|
|
|
|
const challengeHeader = "Docker-Distribution-Api-Version"
|
|
|
|
type userpass struct {
|
|
username string
|
|
password string
|
|
}
|
|
|
|
type credentials struct {
|
|
creds map[string]userpass
|
|
}
|
|
|
|
func (c credentials) Basic(u *url.URL) (string, string) {
|
|
up := c.creds[u.String()]
|
|
|
|
return up.username, up.password
|
|
}
|
|
|
|
func (c credentials) RefreshToken(u *url.URL, service string) string {
|
|
return ""
|
|
}
|
|
|
|
func (c credentials) SetRefreshToken(u *url.URL, service, token string) {
|
|
}
|
|
|
|
// configureAuth stores credentials for challenge responses
|
|
func configureAuth(username, password, remoteURL string) (auth.CredentialStore, error) {
|
|
creds := map[string]userpass{}
|
|
|
|
authURLs, err := getAuthURLs(remoteURL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, url := range authURLs {
|
|
context.GetLogger(context.Background()).Infof("Discovered token authentication URL: %s", url)
|
|
creds[url] = userpass{
|
|
username: username,
|
|
password: password,
|
|
}
|
|
}
|
|
|
|
return credentials{creds: creds}, nil
|
|
}
|
|
|
|
func getAuthURLs(remoteURL string) ([]string, error) {
|
|
authURLs := []string{}
|
|
|
|
resp, err := http.Get(remoteURL + "/v2/")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
for _, c := range challenge.ResponseChallenges(resp) {
|
|
if strings.EqualFold(c.Scheme, "bearer") {
|
|
authURLs = append(authURLs, c.Parameters["realm"])
|
|
}
|
|
}
|
|
|
|
return authURLs, nil
|
|
}
|
|
|
|
func ping(manager challenge.Manager, endpoint, versionHeader string) error {
|
|
resp, err := http.Get(endpoint)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
return manager.AddResponse(resp)
|
|
}
|