90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
package ldap
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import (
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"fmt"
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"os"
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"strings"
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"github.com/hashicorp/vault/api"
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pwd "github.com/hashicorp/vault/helper/password"
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)
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type CLIHandler struct{}
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func (h *CLIHandler) Auth(c *api.Client, m map[string]string) (*api.Secret, error) {
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mount, ok := m["mount"]
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if !ok {
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mount = "ldap"
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}
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username, ok := m["username"]
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if !ok {
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username = usernameFromEnv()
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if username == "" {
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return nil, fmt.Errorf("'username' not supplied and neither 'LOGNAME' nor 'USER' env vars set")
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}
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}
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password, ok := m["password"]
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if !ok {
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fmt.Printf("Password (will be hidden): ")
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var err error
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password, err = pwd.Read(os.Stdin)
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fmt.Println()
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if err != nil {
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return nil, err
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}
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}
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data := map[string]interface{}{
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"password": password,
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}
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mfa_method, ok := m["method"]
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if ok {
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data["method"] = mfa_method
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}
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mfa_passcode, ok := m["passcode"]
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if ok {
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data["passcode"] = mfa_passcode
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}
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path := fmt.Sprintf("auth/%s/login/%s", mount, username)
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secret, err := c.Logical().Write(path, data)
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if err != nil {
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return nil, err
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}
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if secret == nil {
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return nil, fmt.Errorf("empty response from credential provider")
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}
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return secret, nil
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}
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func (h *CLIHandler) Help() string {
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help := `
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The LDAP credential provider allows you to authenticate with LDAP.
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To use it, first configure it through the "config" endpoint, and then
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login by specifying username and password. If password is not provided
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on the command line, it will be read from stdin.
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If multi-factor authentication (MFA) is enabled, a "method" and/or "passcode"
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may be provided depending on the MFA backend enabled. To check
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which MFA backend is in use, read "auth/[mount]/mfa_config".
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Example: vault auth -method=ldap username=john
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`
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return strings.TrimSpace(help)
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}
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func usernameFromEnv() string {
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if logname := os.Getenv("LOGNAME"); logname != "" {
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return logname
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}
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if user := os.Getenv("USER"); user != "" {
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return user
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}
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return ""
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}
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