Files
docker-cli/components/engine/distribution/registry.go
Derek McGowan d04c4d1cf0 Login update and endpoint refactor
Further differentiate the APIEndpoint used with V2 with the endpoint type which is only used for v1 registry interactions
Rename Endpoint to V1Endpoint and remove version ambiguity
Use distribution token handler for login

Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: f2d481a299f7404f5cabbe0f8e6a4ae3c3211c1e
Component: engine
2016-03-01 11:52:32 -08:00

113 lines
3.4 KiB
Go

package distribution
import (
"fmt"
"net"
"net/http"
"net/url"
"time"
"github.com/docker/distribution"
distreference "github.com/docker/distribution/reference"
"github.com/docker/distribution/registry/client"
"github.com/docker/distribution/registry/client/auth"
"github.com/docker/distribution/registry/client/transport"
"github.com/docker/docker/dockerversion"
"github.com/docker/docker/registry"
"github.com/docker/engine-api/types"
"golang.org/x/net/context"
)
type dumbCredentialStore struct {
auth *types.AuthConfig
}
func (dcs dumbCredentialStore) Basic(*url.URL) (string, string) {
return dcs.auth.Username, dcs.auth.Password
}
// NewV2Repository returns a repository (v2 only). It creates a HTTP transport
// providing timeout settings and authentication support, and also verifies the
// remote API version.
func NewV2Repository(ctx context.Context, repoInfo *registry.RepositoryInfo, endpoint registry.APIEndpoint, metaHeaders http.Header, authConfig *types.AuthConfig, actions ...string) (repo distribution.Repository, foundVersion bool, err error) {
repoName := repoInfo.FullName()
// If endpoint does not support CanonicalName, use the RemoteName instead
if endpoint.TrimHostname {
repoName = repoInfo.RemoteName()
}
// TODO(dmcgowan): Call close idle connections when complete, use keep alive
base := &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
TLSClientConfig: endpoint.TLSConfig,
// TODO(dmcgowan): Call close idle connections when complete and use keep alive
DisableKeepAlives: true,
}
modifiers := registry.DockerHeaders(dockerversion.DockerUserAgent(), metaHeaders)
authTransport := transport.NewTransport(base, modifiers...)
challengeManager, foundVersion, err := registry.PingV2Registry(endpoint, authTransport)
if err != nil {
transportOK := false
if responseErr, ok := err.(registry.PingResponseError); ok {
transportOK = true
err = responseErr.Err
}
return nil, foundVersion, fallbackError{
err: err,
confirmedV2: foundVersion,
transportOK: transportOK,
}
}
if authConfig.RegistryToken != "" {
passThruTokenHandler := &existingTokenHandler{token: authConfig.RegistryToken}
modifiers = append(modifiers, auth.NewAuthorizer(challengeManager, passThruTokenHandler))
} else {
creds := dumbCredentialStore{auth: authConfig}
tokenHandler := auth.NewTokenHandler(authTransport, creds, repoName, actions...)
basicHandler := auth.NewBasicHandler(creds)
modifiers = append(modifiers, auth.NewAuthorizer(challengeManager, tokenHandler, basicHandler))
}
tr := transport.NewTransport(base, modifiers...)
repoNameRef, err := distreference.ParseNamed(repoName)
if err != nil {
return nil, foundVersion, fallbackError{
err: err,
confirmedV2: foundVersion,
transportOK: true,
}
}
repo, err = client.NewRepository(ctx, repoNameRef, endpoint.URL.String(), tr)
if err != nil {
err = fallbackError{
err: err,
confirmedV2: foundVersion,
transportOK: true,
}
}
return
}
type existingTokenHandler struct {
token string
}
func (th *existingTokenHandler) Scheme() string {
return "bearer"
}
func (th *existingTokenHandler) AuthorizeRequest(req *http.Request, params map[string]string) error {
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", th.token))
return nil
}