87 lines
1.8 KiB
Go
87 lines
1.8 KiB
Go
package proxy
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import (
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"net/http"
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"net/url"
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"strings"
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"github.com/docker/distribution/context"
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"github.com/docker/distribution/registry/client/auth"
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"github.com/docker/distribution/registry/client/auth/challenge"
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)
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const challengeHeader = "Docker-Distribution-Api-Version"
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type userpass struct {
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username string
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password string
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}
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type credentials struct {
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creds map[string]userpass
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}
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func (c credentials) Basic(u *url.URL) (string, string) {
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up := c.creds[u.String()]
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return up.username, up.password
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}
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func (c credentials) RefreshToken(u *url.URL, service string) string {
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return ""
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}
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func (c credentials) SetRefreshToken(u *url.URL, service, token string) {
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}
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// configureAuth stores credentials for challenge responses
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func configureAuth(username, password, remoteURL string) (auth.CredentialStore, error) {
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creds := map[string]userpass{}
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authURLs, err := getAuthURLs(remoteURL)
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if err != nil {
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return nil, err
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}
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for _, url := range authURLs {
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context.GetLogger(context.Background()).Infof("Discovered token authentication URL: %s", url)
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creds[url] = userpass{
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username: username,
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password: password,
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}
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}
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return credentials{creds: creds}, nil
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}
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func getAuthURLs(remoteURL string) ([]string, error) {
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authURLs := []string{}
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resp, err := http.Get(remoteURL + "/v2/")
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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for _, c := range challenge.ResponseChallenges(resp) {
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if strings.EqualFold(c.Scheme, "bearer") {
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authURLs = append(authURLs, c.Parameters["realm"])
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}
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}
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return authURLs, nil
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}
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func ping(manager challenge.Manager, endpoint, versionHeader string) error {
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resp, err := http.Get(endpoint)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if err := manager.AddResponse(resp); err != nil {
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return err
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}
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return nil
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}
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