forked from git-lfs/git-lfs
/
ntlm_auth_nix.go
69 lines (53 loc) · 1.61 KB
/
ntlm_auth_nix.go
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// +build !windows
package lfsapi
import (
"encoding/base64"
"fmt"
"net/http"
"github.com/ThomsonReutersEikon/go-ntlm/ntlm"
)
func (c *Client) ntlmAuthenticateRequest(req *http.Request, creds *ntmlCredentials) (*http.Response, error) {
negotiate, err := base64.StdEncoding.DecodeString(ntlmNegotiateMessage)
if err != nil {
return nil, err
}
chRes, challengeMsg, err := c.ntlmSendType1Message(req, negotiate)
if err != nil {
return chRes, err
}
challenge, err := ntlm.ParseChallengeMessage(challengeMsg)
if err != nil {
return nil, err
}
session, err := c.ntlmClientSession(creds)
if err != nil {
return nil, err
}
session.ProcessChallengeMessage(challenge)
authenticate, err := session.GenerateAuthenticateMessage()
if err != nil {
return nil, err
}
return c.ntlmSendType3Message(req, authenticate.Bytes())
}
func (c *Client) ntlmClientSession(creds *ntmlCredentials) (ntlm.ClientSession, error) {
c.ntlmMu.Lock()
defer c.ntlmMu.Unlock()
if creds == nil {
return nil, fmt.Errorf("Your user name must be of the form DOMAIN\\user. Single-sign-on is not supported.")
}
if c.ntlmSessions == nil {
c.ntlmSessions = make(map[string]ntlm.ClientSession)
}
if ses, ok := c.ntlmSessions[creds.domain]; ok {
return ses, nil
}
session, err := ntlm.CreateClientSession(ntlm.Version2, ntlm.ConnectionOrientedMode)
if err != nil {
return nil, err
}
session.SetUserInfo(creds.username, creds.password, creds.domain)
c.ntlmSessions[creds.domain] = session
return session, nil
}
const ntlmNegotiateMessage = "TlRMTVNTUAABAAAAB7IIogwADAAzAAAACwALACgAAAAKAAAoAAAAD1dJTExISS1NQUlOTk9SVEhBTUVSSUNB"