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122 lines
3.1 KiB
Go
122 lines
3.1 KiB
Go
package client
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"strings"
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"github.com/docker/docker-credential-helpers/credentials"
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)
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// isValidCredsMessage checks if 'msg' contains invalid credentials error message.
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// It returns whether the logs are free of invalid credentials errors and the error if it isn't.
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// error values can be errCredentialsMissingServerURL or errCredentialsMissingUsername.
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func isValidCredsMessage(msg string) error {
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if credentials.IsCredentialsMissingServerURLMessage(msg) {
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return credentials.NewErrCredentialsMissingServerURL()
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}
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if credentials.IsCredentialsMissingUsernameMessage(msg) {
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return credentials.NewErrCredentialsMissingUsername()
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}
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return nil
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}
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// Store uses an external program to save credentials.
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func Store(program ProgramFunc, creds *credentials.Credentials) error {
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cmd := program(credentials.ActionStore)
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buffer := new(bytes.Buffer)
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if err := json.NewEncoder(buffer).Encode(creds); err != nil {
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return err
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}
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cmd.Input(buffer)
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out, err := cmd.Output()
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if err != nil {
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t := strings.TrimSpace(string(out))
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if isValidErr := isValidCredsMessage(t); isValidErr != nil {
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err = isValidErr
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}
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return fmt.Errorf("error storing credentials - err: %v, out: `%s`", err, t)
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}
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return nil
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}
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// Get executes an external program to get the credentials from a native store.
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func Get(program ProgramFunc, serverURL string) (*credentials.Credentials, error) {
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cmd := program(credentials.ActionGet)
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cmd.Input(strings.NewReader(serverURL))
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out, err := cmd.Output()
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if err != nil {
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t := strings.TrimSpace(string(out))
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if credentials.IsErrCredentialsNotFoundMessage(t) {
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return nil, credentials.NewErrCredentialsNotFound()
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}
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if isValidErr := isValidCredsMessage(t); isValidErr != nil {
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err = isValidErr
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}
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return nil, fmt.Errorf("error getting credentials - err: %v, out: `%s`", err, t)
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}
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resp := &credentials.Credentials{
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ServerURL: serverURL,
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}
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if err := json.NewDecoder(bytes.NewReader(out)).Decode(resp); err != nil {
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return nil, err
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}
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return resp, nil
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}
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// Erase executes a program to remove the server credentials from the native store.
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func Erase(program ProgramFunc, serverURL string) error {
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cmd := program(credentials.ActionErase)
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cmd.Input(strings.NewReader(serverURL))
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out, err := cmd.Output()
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if err != nil {
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t := strings.TrimSpace(string(out))
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if isValidErr := isValidCredsMessage(t); isValidErr != nil {
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err = isValidErr
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}
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return fmt.Errorf("error erasing credentials - err: %v, out: `%s`", err, t)
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}
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return nil
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}
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// List executes a program to list server credentials in the native store.
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func List(program ProgramFunc) (map[string]string, error) {
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cmd := program(credentials.ActionList)
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cmd.Input(strings.NewReader("unused"))
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out, err := cmd.Output()
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if err != nil {
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t := strings.TrimSpace(string(out))
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if isValidErr := isValidCredsMessage(t); isValidErr != nil {
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err = isValidErr
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}
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return nil, fmt.Errorf("error listing credentials - err: %v, out: `%s`", err, t)
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}
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var resp map[string]string
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if err = json.NewDecoder(bytes.NewReader(out)).Decode(&resp); err != nil {
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return nil, err
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}
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return resp, nil
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}
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