func (cli *DockerCli) LoadConfigFile() (err error) {
cli.configFile, err = registry.LoadConfig(os.Getenv("HOME"))
if err != nil {
fmt.Fprintf(cli.err, "WARNING: %s\n", err)
}
return err
}
func DockerLogin(username, password, email string) (string, error) {
if username == "" && password == "" && email == "" {
// Attempt login with .dockercfg file.
configFile, err := registry.LoadConfig(os.Getenv("HOME"))
if err != nil {
return "", err
}
authconfig, ok := configFile.Configs[registry.IndexServerAddress()]
if !ok {
return "", fmt.Errorf("Error: Unable to login, no data for index server.")
}
status, err := registry.Login(&authconfig, registry.HTTPRequestFactory(nil))
if err != nil {
return "", err
}
return status, nil
} else {
// Attempt login with this function's auth params.
authconfig := registry.AuthConfig{
Username: username,
Email: email,
Password: password,
ServerAddress: registry.IndexServerAddress(),
}
status, err := registry.Login(&authconfig, registry.HTTPRequestFactory(nil))
if err != nil {
return "", err
}
return status, nil
}
return "", fmt.Errorf("Auth params don't make sense.")
}
// CmdLogin logs in or registers a user to a Docker registry service.
//
// If no server is specified, the user will be logged into or registered to the registry's index server.
//
// Usage: docker login SERVER
func (cli *DockerCli) CmdLogin(args ...string) error {
cmd := cli.Subcmd("login", "[SERVER]", "Register or log in to a Docker registry server, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd.Require(flag.Max, 1)
var username, password, email string
cmd.StringVar(&username, []string{"u", "-username"}, "", "Username")
cmd.StringVar(&password, []string{"p", "-password"}, "", "Password")
cmd.StringVar(&email, []string{"e", "-email"}, "", "Email")
utils.ParseFlags(cmd, args, true)
serverAddress := registry.IndexServerAddress()
if len(cmd.Args()) > 0 {
serverAddress = cmd.Arg(0)
}
promptDefault := func(prompt string, configDefault string) {
if configDefault == "" {
fmt.Fprintf(cli.out, "%s: ", prompt)
} else {
fmt.Fprintf(cli.out, "%s (%s): ", prompt, configDefault)
}
}
readInput := func(in io.Reader, out io.Writer) string {
reader := bufio.NewReader(in)
line, _, err := reader.ReadLine()
if err != nil {
fmt.Fprintln(out, err.Error())
os.Exit(1)
}
return string(line)
}
cli.LoadConfigFile()
authconfig, ok := cli.configFile.Configs[serverAddress]
if !ok {
authconfig = registry.AuthConfig{}
}
if username == "" {
promptDefault("Username", authconfig.Username)
username = readInput(cli.in, cli.out)
username = strings.Trim(username, " ")
if username == "" {
username = authconfig.Username
}
}
// Assume that a different username means they may not want to use
// the password or email from the config file, so prompt them
if username != authconfig.Username {
if password == "" {
oldState, err := term.SaveState(cli.inFd)
if err != nil {
return err
}
fmt.Fprintf(cli.out, "Password: "******"\n")
term.RestoreTerminal(cli.inFd, oldState)
if password == "" {
return fmt.Errorf("Error : Password Required")
}
}
if email == "" {
promptDefault("Email", authconfig.Email)
email = readInput(cli.in, cli.out)
if email == "" {
email = authconfig.Email
}
}
} else {
// However, if they don't override the username use the
// password or email from the cmd line if specified. IOW, allow
// then to change/override them. And if not specified, just
// use what's in the config file
if password == "" {
password = authconfig.Password
}
if email == "" {
email = authconfig.Email
}
}
authconfig.Username = username
authconfig.Password = password
authconfig.Email = email
authconfig.ServerAddress = serverAddress
cli.configFile.Configs[serverAddress] = authconfig
stream, statusCode, err := cli.call("POST", "/auth", cli.configFile.Configs[serverAddress], nil)
if statusCode == 401 {
delete(cli.configFile.Configs, serverAddress)
registry.SaveConfig(cli.configFile)
return err
}
if err != nil {
return err
}
var response types.AuthResponse
if err := json.NewDecoder(stream).Decode(&response); err != nil {
cli.configFile, _ = registry.LoadConfig(homedir.Get())
return err
}
registry.SaveConfig(cli.configFile)
fmt.Fprintf(cli.out, "WARNING: login credentials saved in %s.\n", path.Join(homedir.Get(), registry.CONFIGFILE))
if response.Status != "" {
fmt.Fprintf(cli.out, "%s\n", response.Status)
}
return nil
}
