Revert "support registry auth"

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

dagger/registryauth.go

@@ -1,73 +0,0 @@
-package dagger
-
-import (
-	"context"
-	"net/url"
-	"strings"
-
-	bkauth "github.com/moby/buildkit/session/auth"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-)
-
-// registryAuthProvider is a buildkit provider for registry authentication
-// Adapted from: https://github.com/moby/buildkit/blob/master/session/auth/authprovider/authprovider.go
-type registryAuthProvider struct {
-	credentials map[string]*bkauth.CredentialsResponse
-}
-
-func newRegistryAuthProvider() *registryAuthProvider {
-	return &registryAuthProvider{}
-}
-
-func (a *registryAuthProvider) SetCredentials(credentials map[string]*bkauth.CredentialsResponse) {
-	a.credentials = credentials
-}
-
-func (a *registryAuthProvider) Register(server *grpc.Server) {
-	bkauth.RegisterAuthServer(server, a)
-}
-
-func (a *registryAuthProvider) Credentials(ctx context.Context, req *bkauth.CredentialsRequest) (*bkauth.CredentialsResponse, error) {
-	reqURL, err := parseAuthHost(req.Host)
-	if err != nil {
-		return nil, err
-	}
-
-	for authHost, auth := range a.credentials {
-		u, err := parseAuthHost(authHost)
-		if err != nil {
-			return nil, err
-		}
-
-		if u.Host == reqURL.Host {
-			return auth, nil
-		}
-	}
-
-	return &bkauth.CredentialsResponse{}, nil
-}
-
-func parseAuthHost(host string) (*url.URL, error) {
-	if host == "registry-1.docker.io" {
-		host = "https://index.docker.io/v1/"
-	}
-
-	if !strings.HasPrefix(host, "http://") && !strings.HasPrefix(host, "https://") {
-		host = "https://" + host
-	}
-	return url.Parse(host)
-}
-
-func (a *registryAuthProvider) FetchToken(ctx context.Context, req *bkauth.FetchTokenRequest) (rr *bkauth.FetchTokenResponse, err error) {
-	return nil, status.Errorf(codes.Unavailable, "client side tokens not implemented")
-}
-
-func (a *registryAuthProvider) GetTokenAuthority(ctx context.Context, req *bkauth.GetTokenAuthorityRequest) (*bkauth.GetTokenAuthorityResponse, error) {
-	return nil, status.Errorf(codes.Unavailable, "client side tokens not implemented")
-}
-
-func (a *registryAuthProvider) VerifyTokenAuthority(ctx context.Context, req *bkauth.VerifyTokenAuthorityRequest) (*bkauth.VerifyTokenAuthorityResponse, error) {
-	return nil, status.Errorf(codes.Unavailable, "client side tokens not implemented")
-}