582efa2fd2
Co-authored-by: Andrew Gaffney <andrew@gaffney.cc> Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package credentials
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import (
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"fmt"
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"strings"
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)
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// ParseUsernameDomain parses the username and domain from the given strings.
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// It returns the username, domain, and an error if any.
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// The username can be in the format of "username", "username@domain", or "domain\username".
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func ParseUsernameDomain(username, domain string) (string, string, error) {
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switch {
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case username != "" && domain == "":
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atCount := strings.Count(username, "@")
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if atCount > 1 {
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return "", "", fmt.Errorf("invalid format, more than one '@' found")
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}
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backslashCount := strings.Count(username, "\\")
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if backslashCount > 1 {
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return "", "", fmt.Errorf("invalid format, more than one '\\' found")
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}
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if atCount > 0 && backslashCount > 0 {
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return "", "", fmt.Errorf("invalid format, both '@' and '\\' found")
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}
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// username@domain
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if u, d, ok := strings.Cut(username, "@"); ok {
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return u, d, nil
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}
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// domain\username
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if d, u, ok := strings.Cut(username, "\\"); ok {
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return u, d, nil
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}
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case username != "" && domain != "":
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if strings.Contains(username, "@") || strings.Contains(username, "\\") {
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return "", "", fmt.Errorf("username and domain cannot be provided together with a username in the format of username@domain or domain\\username")
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}
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}
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return username, domain, nil
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}
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