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login_test.go
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login_test.go
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package sasl_test
import (
"bytes"
"errors"
"testing"
"github.com/emersion/go-sasl"
)
func TestNewLoginClient(t *testing.T) {
c := sasl.NewLoginClient("username", "Password:")
mech, resp, err := c.Start()
if err != nil {
t.Fatal("Error while starting client:", err)
}
if mech != "LOGIN" {
t.Error("Invalid mechanism name:", mech)
}
expected := []byte{117, 115, 101, 114, 110, 97, 109, 101}
if bytes.Compare(resp, expected) != 0 {
t.Error("Invalid initial response:", resp)
}
resp, err = c.Next(expected)
if err != sasl.ErrUnexpectedServerChallenge {
t.Error("Invalid chalange")
}
expected = []byte("Password:")
resp, err = c.Next(expected)
if bytes.Compare(resp, expected) != 0 {
t.Error("Invalid initial response:", resp)
}
}
func TestNewLoginServer(t *testing.T) {
var authenticated = false
s := sasl.NewLoginServer(func(username, password string) error {
if username != "tim" {
return errors.New("Invalid username: " + username)
}
if password != "tanstaaftanstaaf" {
return errors.New("Invalid password: " + password)
}
authenticated = true
return nil
})
challenge, done, err := s.Next(nil)
if err != nil {
t.Fatal("Error while starting server:", err)
}
if done {
t.Fatal("Done after starting server")
}
if string(challenge) != "Username:" {
t.Error("Invalid first challenge:", challenge)
}
challenge, done, err = s.Next([]byte("tim"))
if err != nil {
t.Fatal("Error while sending username:", err)
}
if done {
t.Fatal("Done after sending username")
}
if string(challenge) != "Password:" {
t.Error("Invalid challenge after sending username:", challenge)
}
challenge, done, err = s.Next([]byte("tanstaaftanstaaf"))
if err != nil {
t.Fatal("Error while sending password:", err)
}
if !done {
t.Fatal("Authentication not finished after sending password")
}
if len(challenge) > 0 {
t.Error("Invalid non-empty final challenge:", challenge)
}
if !authenticated {
t.Error("Not authenticated")
}
// Tests with initial response field, as per RFC4422 section 3
authenticated = false
s = sasl.NewLoginServer(func(username, password string) error {
if username != "tim" {
return errors.New("Invalid username: " + username)
}
if password != "tanstaaftanstaaf" {
return errors.New("Invalid password: " + password)
}
authenticated = true
return nil
})
challenge, done, err = s.Next([]byte("tim"))
if err != nil {
t.Fatal("Error while sending username:", err)
}
if done {
t.Fatal("Done after sending username")
}
if string(challenge) != "Password:" {
t.Error("Invalid challenge after sending username:", string(challenge))
}
challenge, done, err = s.Next([]byte("tanstaaftanstaaf"))
if err != nil {
t.Fatal("Error while sending password:", err)
}
if !done {
t.Fatal("Authentication not finished after sending password")
}
if len(challenge) > 0 {
t.Error("Invalid non-empty final challenge:", challenge)
}
if !authenticated {
t.Error("Not authenticated")
}
}