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client_exported_test.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package ldap_test
import (
"context"
"fmt"
"testing"
"github.com/hashicorp/cap/ldap"
"github.com/hashicorp/go-hclog"
"github.com/jimlambrt/gldap"
"github.com/jimlambrt/gldap/testdirectory"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestClient_Authenticate(t *testing.T) {
t.Parallel()
testCtx := context.Background()
logger := hclog.New(&hclog.LoggerOptions{
Name: "test-logger",
Level: hclog.Error,
})
td := testdirectory.Start(t,
testdirectory.WithDefaults(t, &testdirectory.Defaults{AllowAnonymousBind: true}),
testdirectory.WithLogger(t, logger),
)
groups := []*gldap.Entry{
testdirectory.NewGroup(t, "admin", []string{"alice"}),
testdirectory.NewGroup(t, "admin", []string{"eve"}, testdirectory.WithDefaults(t, &testdirectory.Defaults{UPNDomain: "example.com"})),
}
tokenGroups := map[string][]*gldap.Entry{
"S-1-1": {
testdirectory.NewGroup(t, "admin", []string{"alice"}),
},
}
sidBytes, err := ldap.SIDBytes(1, 1)
require.NoError(t, err)
users := testdirectory.NewUsers(t, []string{"alice", "bob"}, testdirectory.WithMembersOf(t, "admin"), testdirectory.WithTokenGroups(t, sidBytes))
users = append(
users,
testdirectory.NewUsers(
t,
[]string{"eve"},
testdirectory.WithDefaults(t, &testdirectory.Defaults{UPNDomain: "example.com"}),
testdirectory.WithMembersOf(t, "admin"))...,
)
// Set up a duplicated user to test the case where the search returns multiple users
users = append(
users,
testdirectory.NewUsers(
t,
[]string{"mallory", "mallory"},
testdirectory.WithDefaults(t, &testdirectory.Defaults{UPNDomain: "example.com"}),
)...,
)
// add some attributes that we always want to filter out of an AuthResult,
// so if we ever start seeing tests fail because of them; we know that we've
// messed up the default filtering
for _, u := range users {
u.Attributes = append(u.Attributes,
gldap.NewEntryAttribute(ldap.DefaultADUserPasswordAttribute, []string{"password"}),
gldap.NewEntryAttribute(ldap.DefaultOpenLDAPUserPasswordAttribute, []string{"password"}),
)
}
td.SetUsers(users...)
td.SetGroups(groups...)
td.SetTokenGroups(tokenGroups)
tests := []struct {
name string
username string
password string
clientConfig *ldap.ClientConfig
opts []ldap.Option
wantGroups []string
wantUserAttributes map[string][]string
wantUserDN string
wantErr bool
wantErrIs error
wantErrContains string
}{
{
name: "missing-username",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
wantErr: true,
wantErrIs: ldap.ErrInvalidParameter,
wantErrContains: "missing username",
},
{
name: "missing-password",
username: "alice",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
wantErr: true,
wantErrIs: ldap.ErrInvalidParameter,
wantErrContains: "password cannot be of zero length if allow_empty_passwd_bind is not enabled",
},
{
name: "unable-to-connect",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", 65535)},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
wantErr: true,
wantErrContains: "failed to connect",
},
{
name: "failed-get-user-binddn",
username: "invalid-name",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
wantErr: true,
wantErrContains: "discovery of user bind DN failed",
},
{
name: "success-with-anon-bind",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-user-attributes",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
ExcludedUserAttributes: []string{"password", "memberof"},
},
opts: []ldap.Option{ldap.WithUserAttributes()},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"name": {"alice"},
"tokenGroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
},
{
name: "success-include-user-attributes",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
ExcludedUserAttributes: []string{"password", "memberof"},
IncludeUserAttributes: true,
},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"name": {"alice"},
"tokenGroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
},
{
name: "success-with-user-attributes-lower-case-keys",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
ExcludedUserAttributes: []string{"password", "memberof"},
IncludeUserAttributes: true,
LowerUserAttributeKeys: true,
},
opts: []ldap.Option{ldap.WithUserAttributes()},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"name": {"alice"},
"tokengroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
},
{
name: "success-with-user-attributes-lower-case-keys-opt",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
ExcludedUserAttributes: []string{"password", "memberof"},
IncludeUserAttributes: true,
},
opts: []ldap.Option{ldap.WithUserAttributes(), ldap.WithLowerUserAttributeKeys()},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"name": {"alice"},
"tokengroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
},
{
name: "success-include-user-groups",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
IncludeUserGroups: true,
},
wantGroups: []string{groups[0].DN},
},
{
name: "success-include-user-groups-but-no-groups",
username: "bob",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
IncludeUserGroups: true,
},
wantGroups: []string{},
},
{
name: "success-with-groups-and-user-attributes",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
opts: []ldap.Option{ldap.WithGroups(), ldap.WithUserAttributes()},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"memberOf": {"admin"},
"name": {"alice"},
"password": {"password"},
"tokenGroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-user-filter",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UserFilter: "({{.UserAttr}}={{.Username}})",
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "failed-with-invalid-user-filter",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UserFilter: "({{.BadFilter}}={{.Username}})",
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
wantErr: true,
wantErrContains: "search failed due to template parsing error",
},
{
name: "success-with-anon-bind-token-groups",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UseTokenGroups: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-groups-empty-userdn",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UseTokenGroups: true,
AnonymousGroupSearch: true,
AllowEmptyAnonymousGroupSearch: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-groups-empty-userdn-opt",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UseTokenGroups: true,
AnonymousGroupSearch: true,
},
opts: []ldap.Option{ldap.WithGroups(), ldap.WithEmptyAnonymousGroupSearch()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain-empty-userdn",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
AnonymousGroupSearch: true,
AllowEmptyAnonymousGroupSearch: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain-empty-userdn-opt",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
AnonymousGroupSearch: true,
},
opts: []ldap.Option{ldap.WithGroups(), ldap.WithEmptyAnonymousGroupSearch()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-binddn",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
BindDN: fmt.Sprintf("%s=%s,%s", testdirectory.DefaultUserAttr, "bob", testdirectory.DefaultUserDN),
BindPassword: "password",
},
opts: []ldap.Option{ldap.WithGroups(), ldap.WithUserAttributes()},
wantGroups: []string{groups[0].DN},
wantUserAttributes: map[string][]string{
"email": {"[email protected]"},
"memberOf": {"admin"},
"name": {"alice"},
"password": {"password"},
"tokenGroups": {"\x01\x00\x00\x00\x00\x00\x00\x01"},
},
wantUserDN: "cn=alice,ou=people,dc=example,dc=org",
},
{
name: "failed-bind-aka-authentication",
username: "alice",
password: "invalid-password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
wantErr: true,
wantErrContains: "unable to bind user",
},
{
name: "success-with-anon-bind-anon-group-search",
username: "alice",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
AnonymousGroupSearch: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain-samaccountname",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
EnableSamaccountnameLogin: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain-empty-userdn-samaccountname",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
AnonymousGroupSearch: true,
AllowEmptyAnonymousGroupSearch: true,
EnableSamaccountnameLogin: true,
},
opts: []ldap.Option{ldap.WithGroups()},
wantGroups: []string{groups[0].DN},
},
{
name: "success-with-anon-bind-upn-domain-empty-userdn-opt-samaccountname",
username: "eve",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
AnonymousGroupSearch: true,
EnableSamaccountnameLogin: true,
},
opts: []ldap.Option{ldap.WithGroups(), ldap.WithEmptyAnonymousGroupSearch()},
wantGroups: []string{groups[0].DN},
},
{
name: "failed-with-anon-bind-upn-domain-multiple-users-returned",
username: "mallory",
password: "password",
clientConfig: &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
UPNDomain: "example.com",
},
opts: []ldap.Option{ldap.WithGroups()},
wantErr: true,
wantErrContains: "LDAP search for binddn 0 or not unique",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
assert, require := assert.New(t), require.New(t)
client, err := ldap.NewClient(testCtx, tc.clientConfig)
defer func() { client.Close(testCtx) }()
require.NoError(err)
authResult, err := client.Authenticate(testCtx, tc.username, tc.password, tc.opts...)
if authResult != nil && len(authResult.Warnings) > 0 {
t.Log(authResult.Warnings)
}
if tc.wantErr {
require.Error(err)
assert.Nil(authResult)
if tc.wantErrIs != nil {
assert.ErrorIs(err, tc.wantErrIs)
}
if tc.wantErrContains != "" {
assert.Contains(err.Error(), tc.wantErrContains)
}
return
}
require.NoError(err)
require.NotNil(authResult)
assert.Equal(tc.wantUserAttributes, authResult.UserAttributes)
assert.Equal(tc.wantUserDN, authResult.UserDN)
assert.Equal(tc.wantGroups, authResult.Groups)
})
}
t.Run("allow-empty-passwords", func(t *testing.T) {
assert, require := assert.New(t), require.New(t)
client, err := ldap.NewClient(testCtx, &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td.Port())},
Certificates: []string{td.Cert()},
AllowEmptyPasswordBinds: true,
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
})
defer func() { client.Close(testCtx) }()
require.NoError(err)
authResult, err := client.Authenticate(testCtx, "alice", "")
require.NoError(err)
assert.NotNil(authResult)
})
t.Run("allow-empty-passwords", func(t *testing.T) {
assert, require := assert.New(t), require.New(t)
// do not allow anon binds
td2 := testdirectory.Start(t,
testdirectory.WithLogger(t, logger),
)
td2.SetUsers(users...)
td2.SetGroups(groups...)
td2.SetTokenGroups(tokenGroups)
client, err := ldap.NewClient(testCtx, &ldap.ClientConfig{
URLs: []string{fmt.Sprintf("ldaps://127.0.0.1:%d", td2.Port())},
Certificates: []string{td2.Cert()},
DiscoverDN: true,
UserDN: testdirectory.DefaultUserDN,
GroupDN: testdirectory.DefaultGroupDN,
AnonymousGroupSearch: true,
BindDN: fmt.Sprintf("%s=%s,%s", testdirectory.DefaultUserAttr, "bob", testdirectory.DefaultUserDN),
BindPassword: "password",
})
defer func() { client.Close(testCtx) }()
require.NoError(err)
authResult, err := client.Authenticate(testCtx, "alice", "password", ldap.WithGroups())
require.Error(err)
assert.Contains(err.Error(), "group search anonymous bind")
assert.Nil(authResult)
})
}