util/resolver: rename vars that shadowed imports

util/resolver/authorizer.go

@@ -70,17 +70,17 @@ func (a *authHandlerNS) get(ctx context.Context, host string, sm *session.Manage
 		}
 		if parts[0] == host {
 			if h.authority != nil {
-				session, ok, err := sessionauth.VerifyTokenAuthority(ctx, host, h.authority, sm, g)
+				sessionID, ok, err := sessionauth.VerifyTokenAuthority(ctx, host, h.authority, sm, g)
 				if err == nil && ok {
-					a.handlers[host+"/"+session] = h
+					a.handlers[host+"/"+sessionID] = h
 					h.lastUsed = time.Now()
 					return h
 				}
 			} else {
-				session, username, password, err := sessionauth.CredentialsFunc(sm, g)(host)
+				sessionID, username, password, err := sessionauth.CredentialsFunc(sm, g)(host)
 				if err == nil {
 					if username == h.common.Username && password == h.common.Secret {
-						a.handlers[host+"/"+session] = h
+						a.handlers[host+"/"+sessionID] = h
 						h.lastUsed = time.Now()
 						return h
 					}
@@ -130,12 +130,12 @@ func (a *dockerAuthorizer) Authorize(ctx context.Context, req *http.Request) err
 		return nil
 	}
 
-	auth, err := ah.authorize(ctx, a.sm, a.session)
+	authHeader, err := ah.authorize(ctx, a.sm, a.session)
 	if err != nil {
 		return err
 	}
 
-	req.Header.Set("Authorization", auth)
+	req.Header.Set("Authorization", authHeader)
 	return nil
 }
 
@@ -163,7 +163,7 @@ func (a *dockerAuthorizer) AddResponses(ctx context.Context, responses []*http.R
 				}
 				handler = nil
 
-				// this hacky way seems to be best method to detect that error is fatal and should not be retried with a new token
+				// this hacky way seems to be the best method to detect that error is fatal and should not be retried with a new token
 				if c.Parameters["error"] == "insufficient_scope" && parseScopes(oldScopes).contains(parseScopes(strings.Split(c.Parameters["scope"], " "))) {
 					return err
 				}
@@ -180,12 +180,12 @@ func (a *dockerAuthorizer) AddResponses(ctx context.Context, responses []*http.R
 			}
 
 			var username, secret string
-			session, pubKey, err := sessionauth.GetTokenAuthority(ctx, host, a.sm, a.session)
+			sessionID, pubKey, err := sessionauth.GetTokenAuthority(ctx, host, a.sm, a.session)
 			if err != nil {
 				return err
 			}
 			if pubKey == nil {
-				session, username, secret, err = a.getCredentials(host)
+				sessionID, username, secret, err = a.getCredentials(host)
 				if err != nil {
 					return err
 				}
@@ -197,23 +197,20 @@ func (a *dockerAuthorizer) AddResponses(ctx context.Context, responses []*http.R
 			}
 			common.Scopes = parseScopes(append(common.Scopes, oldScopes...)).normalize()
 
-			a.handlers.set(host, session, newAuthHandler(host, a.client, c.Scheme, pubKey, common))
+			a.handlers.set(host, sessionID, newAuthHandler(host, a.client, c.Scheme, pubKey, common))
 
 			return nil
 		} else if c.Scheme == auth.BasicAuth {
-			session, username, secret, err := a.getCredentials(host)
+			sessionID, username, secret, err := a.getCredentials(host)
 			if err != nil {
 				return err
 			}
 
 			if username != "" && secret != "" {
-				common := auth.TokenOptions{
+				a.handlers.set(host, sessionID, newAuthHandler(host, a.client, c.Scheme, nil, auth.TokenOptions{
 					Username: username,
 					Secret:   secret,
-				}
-
-				a.handlers.set(host, session, newAuthHandler(host, a.client, c.Scheme, nil, common))
-
+				}))
 				return nil
 			}
 		}
@@ -281,8 +278,8 @@ func (ah *authHandler) doBasicAuth() (string, error) {
 		return "", errors.New("failed to handle basic auth because missing username or secret")
 	}
 
-	auth := base64.StdEncoding.EncodeToString([]byte(username + ":" + secret))
-	return fmt.Sprintf("Basic %s", auth), nil
+	authHeader := base64.StdEncoding.EncodeToString([]byte(username + ":" + secret))
+	return fmt.Sprintf("Basic %s", authHeader), nil
 }
 
 func (ah *authHandler) doBearerAuth(ctx context.Context, sm *session.Manager, g session.Group) (token string, err error) {

util/resolver/resolver.go

@@ -172,12 +172,11 @@ func NewRegistryConfig(m map[string]config.RegistryConfig) docker.RegistryHosts
 
 func newMirrorRegistryHost(mirror string) docker.RegistryHost {
 	mirrorHost, mirrorPath := extractMirrorHostAndPath(mirror)
-	path := path.Join(defaultPath, mirrorPath)
 	h := docker.RegistryHost{
 		Scheme:       "https",
 		Client:       newDefaultClient(),
 		Host:         mirrorHost,
-		Path:         path,
+		Path:         path.Join(defaultPath, mirrorPath),
 		Capabilities: docker.HostCapabilityPull | docker.HostCapabilityResolve,
 	}