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forgejo/modules/auth/pam/pam.go
flynnnnnnnnnn e81ccc406b
Implement FSFE REUSE for golang files (#21840)
Change all license headers to comply with REUSE specification.

Fix #16132

Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2022-11-27 18:20:29 +00:00

43 lines
933 B
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build pam
package pam
import (
"errors"
"github.com/msteinert/pam"
)
// Supported is true when built with PAM
var Supported = true
// Auth pam auth service
func Auth(serviceName, userName, passwd string) (string, error) {
t, err := pam.StartFunc(serviceName, userName, func(s pam.Style, msg string) (string, error) {
switch s {
case pam.PromptEchoOff:
return passwd, nil
case pam.PromptEchoOn, pam.ErrorMsg, pam.TextInfo:
return "", nil
}
return "", errors.New("Unrecognized PAM message style")
})
if err != nil {
return "", err
}
if err = t.Authenticate(0); err != nil {
return "", err
}
if err = t.AcctMgmt(0); err != nil {
return "", err
}
// PAM login names might suffer transformations in the PAM stack.
// We should take whatever the PAM stack returns for it.
return t.GetItem(pam.User)
}