770 lines
28 KiB
Go
770 lines
28 KiB
Go
// Copyright 2021 the Pinniped contributors. All Rights Reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package upstreamldap
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"net/url"
|
|
"testing"
|
|
|
|
"github.com/go-ldap/ldap/v3"
|
|
"github.com/golang/mock/gomock"
|
|
"github.com/stretchr/testify/require"
|
|
"k8s.io/apiserver/pkg/authentication/authenticator"
|
|
"k8s.io/apiserver/pkg/authentication/user"
|
|
|
|
"go.pinniped.dev/internal/mocks/mockldapconn"
|
|
"go.pinniped.dev/internal/testutil"
|
|
)
|
|
|
|
const (
|
|
testHost = "ldap.example.com:8443"
|
|
testBindUsername = "cn=some-bind-username,dc=pinniped,dc=dev"
|
|
testBindPassword = "some-bind-password"
|
|
testUpstreamUsername = "some-upstream-username"
|
|
testUpstreamPassword = "some-upstream-password"
|
|
testUserSearchBase = "some-upstream-base-dn"
|
|
testUserSearchFilter = "some-filter={}-and-more-filter={}"
|
|
testUserSearchUsernameAttribute = "some-upstream-username-attribute"
|
|
testUserSearchUIDAttribute = "some-upstream-uid-attribute"
|
|
testSearchResultDNValue = "some-upstream-user-dn"
|
|
testSearchResultUsernameAttributeValue = "some-upstream-username-value"
|
|
testSearchResultUIDAttributeValue = "some-upstream-uid-value"
|
|
)
|
|
|
|
var (
|
|
testUserSearchFilterInterpolated = fmt.Sprintf("(some-filter=%s-and-more-filter=%s)", testUpstreamUsername, testUpstreamUsername)
|
|
)
|
|
|
|
func TestAuthenticateUser(t *testing.T) {
|
|
provider := func(editFunc func(p *Provider)) *Provider {
|
|
provider := &Provider{
|
|
Name: "some-provider-name",
|
|
Host: testHost,
|
|
CABundle: nil, // this field is only used by the production dialer, which is replaced by a mock for this test
|
|
BindUsername: testBindUsername,
|
|
BindPassword: testBindPassword,
|
|
UserSearch: &UserSearch{
|
|
Base: testUserSearchBase,
|
|
Filter: testUserSearchFilter,
|
|
UsernameAttribute: testUserSearchUsernameAttribute,
|
|
UIDAttribute: testUserSearchUIDAttribute,
|
|
},
|
|
}
|
|
if editFunc != nil {
|
|
editFunc(provider)
|
|
}
|
|
return provider
|
|
}
|
|
|
|
expectedSearch := func(editFunc func(r *ldap.SearchRequest)) *ldap.SearchRequest {
|
|
request := &ldap.SearchRequest{
|
|
BaseDN: testUserSearchBase,
|
|
Scope: ldap.ScopeWholeSubtree,
|
|
DerefAliases: ldap.DerefAlways,
|
|
SizeLimit: 2,
|
|
TimeLimit: 90,
|
|
TypesOnly: false,
|
|
Filter: testUserSearchFilterInterpolated,
|
|
Attributes: []string{testUserSearchUsernameAttribute, testUserSearchUIDAttribute},
|
|
Controls: nil,
|
|
}
|
|
if editFunc != nil {
|
|
editFunc(request)
|
|
}
|
|
return request
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
username string
|
|
password string
|
|
provider *Provider
|
|
setupMocks func(conn *mockldapconn.MockConn)
|
|
dialError error
|
|
wantError string
|
|
wantToSkipDial bool
|
|
wantAuthResponse *authenticator.Response
|
|
wantUnauthenticated bool
|
|
}{
|
|
{
|
|
name: "happy path",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
Referrals: []string{}, // note that we are not following referrals at this time
|
|
Controls: []ldap.Control{}, // TODO are there any response controls that we need to be able to handle?
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultUsernameAttributeValue,
|
|
UID: testSearchResultUIDAttributeValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when the user search filter is already wrapped by parenthesis then it is not wrapped again",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(func(p *Provider) {
|
|
p.UserSearch.Filter = "(" + testUserSearchFilter + ")"
|
|
}),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultUsernameAttributeValue,
|
|
UID: testSearchResultUIDAttributeValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when the UsernameAttribute is dn and there is a user search filter provided",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(func(p *Provider) {
|
|
p.UserSearch.UsernameAttribute = "dn"
|
|
}),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(func(r *ldap.SearchRequest) {
|
|
r.Attributes = []string{testUserSearchUIDAttribute}
|
|
})).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultDNValue,
|
|
UID: testSearchResultUIDAttributeValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when the UIDAttribute is dn",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(func(p *Provider) {
|
|
p.UserSearch.UIDAttribute = "dn"
|
|
}),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(func(r *ldap.SearchRequest) {
|
|
r.Attributes = []string{testUserSearchUsernameAttribute}
|
|
})).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultUsernameAttributeValue,
|
|
UID: testSearchResultDNValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when Filter is blank it derives a search filter from the UsernameAttribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(func(p *Provider) {
|
|
p.UserSearch.Filter = ""
|
|
}),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(func(r *ldap.SearchRequest) {
|
|
r.Filter = "(" + testUserSearchUsernameAttribute + "=" + testUpstreamUsername + ")"
|
|
})).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultUsernameAttributeValue,
|
|
UID: testSearchResultUIDAttributeValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when the username has special LDAP search filter characters then they must be properly escaped in the search filter",
|
|
username: `a&b|c(d)e\f*g`,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(func(r *ldap.SearchRequest) {
|
|
r.Filter = fmt.Sprintf("(some-filter=%s-and-more-filter=%s)", `a&b|c\28d\29e\5cf\2ag`, `a&b|c\28d\29e\5cf\2ag`)
|
|
})).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantAuthResponse: &authenticator.Response{
|
|
User: &user.DefaultInfo{
|
|
Name: testSearchResultUsernameAttributeValue,
|
|
UID: testSearchResultUIDAttributeValue,
|
|
Groups: []string{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "when dial fails",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
dialError: errors.New("some dial error"),
|
|
wantError: fmt.Sprintf(`error dialing host "%s": some dial error`, testHost),
|
|
},
|
|
{
|
|
name: "when the UsernameAttribute is dn and there is not a user search filter provided",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(func(p *Provider) {
|
|
p.UserSearch.UsernameAttribute = "dn"
|
|
p.UserSearch.Filter = ""
|
|
}),
|
|
wantToSkipDial: true,
|
|
wantError: `must specify UserSearch Filter when UserSearch UsernameAttribute is "dn"`,
|
|
},
|
|
{
|
|
name: "when binding as the bind user returns an error",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Return(errors.New("some bind error")).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`error binding as "%s" before user search: some bind error`, testBindUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns an error",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(nil, errors.New("some search error")).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`error searching for user "%s": some search error`, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns no results",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantUnauthenticated: true,
|
|
},
|
|
{
|
|
name: "when searching for the user returns multiple results",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{DN: testSearchResultDNValue},
|
|
{DN: "some-other-dn"},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`searching for user "%s" resulted in 2 search results, but expected 1 result`, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user without a DN",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{DN: ""},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`searching for user "%s" resulted in search result without DN`, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user without an expected username attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found 0 values for attribute "%s" while searching for user "%s", but expected 1 result`, testUserSearchUsernameAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user with too many values for the expected username attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{
|
|
testSearchResultUsernameAttributeValue,
|
|
"unexpected-additional-value",
|
|
}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found 2 values for attribute "%s" while searching for user "%s", but expected 1 result`, testUserSearchUsernameAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user with an empty value for the expected username attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{""}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found empty value for attribute "%s" while searching for user "%s", but expected value to be non-empty`, testUserSearchUsernameAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user without an expected UID attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found 0 values for attribute "%s" while searching for user "%s", but expected 1 result`, testUserSearchUIDAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user with too many values for the expected UID attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{
|
|
testSearchResultUIDAttributeValue,
|
|
"unexpected-additional-value",
|
|
}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found 2 values for attribute "%s" while searching for user "%s", but expected 1 result`, testUserSearchUIDAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when searching for the user returns a user with an empty value for the expected UID attribute",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{""}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`found empty value for attribute "%s" while searching for user "%s", but expected value to be non-empty`, testUserSearchUIDAttribute, testUpstreamUsername),
|
|
},
|
|
{
|
|
name: "when binding as the found user returns an error",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Return(errors.New("some bind error")).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantError: fmt.Sprintf(`error binding for user "%s" using provided password against DN "%s": some bind error`, testUpstreamUsername, testSearchResultDNValue),
|
|
},
|
|
{
|
|
name: "when binding as the found user returns a specific invalid credentials error",
|
|
username: testUpstreamUsername,
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
setupMocks: func(conn *mockldapconn.MockConn) {
|
|
conn.EXPECT().Bind(testBindUsername, testBindPassword).Times(1)
|
|
conn.EXPECT().Search(expectedSearch(nil)).Return(&ldap.SearchResult{
|
|
Entries: []*ldap.Entry{
|
|
{
|
|
DN: testSearchResultDNValue,
|
|
Attributes: []*ldap.EntryAttribute{
|
|
ldap.NewEntryAttribute(testUserSearchUsernameAttribute, []string{testSearchResultUsernameAttributeValue}),
|
|
ldap.NewEntryAttribute(testUserSearchUIDAttribute, []string{testSearchResultUIDAttributeValue}),
|
|
},
|
|
},
|
|
},
|
|
}, nil).Times(1)
|
|
conn.EXPECT().Bind(testSearchResultDNValue, testUpstreamPassword).Return(errors.New(`LDAP Result Code 49 "Invalid Credentials": some bind error`)).Times(1)
|
|
conn.EXPECT().Close().Times(1)
|
|
},
|
|
wantUnauthenticated: true,
|
|
},
|
|
{
|
|
name: "when no username is specified",
|
|
username: "",
|
|
password: testUpstreamPassword,
|
|
provider: provider(nil),
|
|
wantToSkipDial: true,
|
|
wantUnauthenticated: true,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
tt := test
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
ctrl := gomock.NewController(t)
|
|
t.Cleanup(ctrl.Finish)
|
|
|
|
conn := mockldapconn.NewMockConn(ctrl)
|
|
if tt.setupMocks != nil {
|
|
tt.setupMocks(conn)
|
|
}
|
|
|
|
dialWasAttempted := false
|
|
tt.provider.Dialer = LDAPDialerFunc(func(ctx context.Context, hostAndPort string) (Conn, error) {
|
|
dialWasAttempted = true
|
|
require.Equal(t, tt.provider.Host, hostAndPort)
|
|
if tt.dialError != nil {
|
|
return nil, tt.dialError
|
|
}
|
|
return conn, nil
|
|
})
|
|
|
|
authResponse, authenticated, err := tt.provider.AuthenticateUser(context.Background(), tt.username, tt.password)
|
|
|
|
require.Equal(t, !tt.wantToSkipDial, dialWasAttempted)
|
|
|
|
switch {
|
|
case tt.wantError != "":
|
|
require.EqualError(t, err, tt.wantError)
|
|
require.False(t, authenticated)
|
|
require.Nil(t, authResponse)
|
|
case tt.wantUnauthenticated:
|
|
require.NoError(t, err)
|
|
require.False(t, authenticated)
|
|
require.Nil(t, authResponse)
|
|
default:
|
|
require.NoError(t, err)
|
|
require.True(t, authenticated)
|
|
require.Equal(t, tt.wantAuthResponse, authResponse)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetURL(t *testing.T) {
|
|
require.Equal(t, "ldaps://ldap.example.com:1234", (&Provider{Host: "ldap.example.com:1234"}).GetURL())
|
|
require.Equal(t, "ldaps://ldap.example.com", (&Provider{Host: "ldap.example.com"}).GetURL())
|
|
}
|
|
|
|
// Testing of host parsing, TLS negotiation, and CA bundle, etc. for the production code's dialer.
|
|
func TestRealTLSDialing(t *testing.T) {
|
|
testServerCABundle, testServerURL := testutil.TLSTestServer(t, func(w http.ResponseWriter, r *http.Request) {})
|
|
parsedURL, err := url.Parse(testServerURL)
|
|
require.NoError(t, err)
|
|
testServerHostAndPort := parsedURL.Host
|
|
|
|
unusedPortGrabbingListener, err := net.Listen("tcp", "127.0.0.1:0")
|
|
require.NoError(t, err)
|
|
recentlyClaimedHostAndPort := unusedPortGrabbingListener.Addr().String()
|
|
require.NoError(t, unusedPortGrabbingListener.Close())
|
|
|
|
alreadyCancelledContext, cancelFunc := context.WithCancel(context.Background())
|
|
cancelFunc() // cancel it immediately
|
|
|
|
tests := []struct {
|
|
name string
|
|
host string
|
|
caBundle []byte
|
|
context context.Context
|
|
wantError string
|
|
}{
|
|
{
|
|
name: "happy path",
|
|
host: testServerHostAndPort,
|
|
caBundle: []byte(testServerCABundle),
|
|
context: context.Background(),
|
|
},
|
|
{
|
|
name: "invalid CA bundle",
|
|
host: testServerHostAndPort,
|
|
caBundle: []byte("not a ca bundle"),
|
|
context: context.Background(),
|
|
wantError: `LDAP Result Code 200 "Network Error": could not parse CA bundle`,
|
|
},
|
|
{
|
|
name: "missing CA bundle when it is required because the host is not using a trusted CA",
|
|
host: testServerHostAndPort,
|
|
caBundle: nil,
|
|
context: context.Background(),
|
|
wantError: `LDAP Result Code 200 "Network Error": x509: certificate signed by unknown authority`,
|
|
},
|
|
{
|
|
name: "cannot connect to host",
|
|
// This is assuming that this port was not reclaimed by another app since the test setup ran. Seems safe enough.
|
|
host: recentlyClaimedHostAndPort,
|
|
caBundle: []byte(testServerCABundle),
|
|
context: context.Background(),
|
|
wantError: fmt.Sprintf(`LDAP Result Code 200 "Network Error": dial tcp %s: connect: connection refused`, recentlyClaimedHostAndPort),
|
|
},
|
|
{
|
|
name: "pays attention to the passed context",
|
|
host: testServerHostAndPort,
|
|
caBundle: []byte(testServerCABundle),
|
|
context: alreadyCancelledContext,
|
|
wantError: fmt.Sprintf(`LDAP Result Code 200 "Network Error": dial tcp %s: operation was canceled`, testServerHostAndPort),
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
test := test
|
|
t.Run(test.name, func(t *testing.T) {
|
|
provider := &Provider{
|
|
Host: test.host,
|
|
CABundle: test.caBundle,
|
|
Dialer: nil, // this test is for the default (production) dialer
|
|
}
|
|
conn, err := provider.dial(test.context)
|
|
if conn != nil {
|
|
defer conn.Close()
|
|
}
|
|
if test.wantError != "" {
|
|
require.Nil(t, conn)
|
|
require.EqualError(t, err, test.wantError)
|
|
} else {
|
|
require.NoError(t, err)
|
|
require.NotNil(t, conn)
|
|
|
|
// Should be an instance of the real production LDAP client type.
|
|
// Can't test its methods here because we are not dialed to a real LDAP server.
|
|
require.IsType(t, &ldap.Conn{}, conn)
|
|
|
|
// Indirectly checking that the Dialer method constructed the ldap.Conn with isTLS set to true,
|
|
// since this is always the correct behavior unless/until we want to support StartTLS.
|
|
err := conn.(*ldap.Conn).StartTLS(&tls.Config{})
|
|
require.EqualError(t, err, `LDAP Result Code 200 "Network Error": ldap: already encrypted`)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// Test various cases of host and port parsing.
|
|
func TestHostAndPortWithDefaultPort(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
hostAndPort string
|
|
defaultPort string
|
|
wantError string
|
|
wantHostAndPort string
|
|
}{
|
|
{
|
|
name: "host already has port",
|
|
hostAndPort: "host.example.com:99",
|
|
defaultPort: "42",
|
|
wantHostAndPort: "host.example.com:99",
|
|
},
|
|
{
|
|
name: "host does not have port",
|
|
hostAndPort: "host.example.com",
|
|
defaultPort: "42",
|
|
wantHostAndPort: "host.example.com:42",
|
|
},
|
|
{
|
|
name: "host does not have port and default port is empty",
|
|
hostAndPort: "host.example.com",
|
|
defaultPort: "",
|
|
wantHostAndPort: "host.example.com",
|
|
},
|
|
{
|
|
name: "IPv6 host already has port",
|
|
hostAndPort: "[::1%lo0]:80",
|
|
defaultPort: "42",
|
|
wantHostAndPort: "[::1%lo0]:80",
|
|
},
|
|
{
|
|
name: "IPv6 host does not have port",
|
|
hostAndPort: "[::1%lo0]",
|
|
defaultPort: "42",
|
|
wantHostAndPort: "[::1%lo0]:42",
|
|
},
|
|
{
|
|
name: "IPv6 host does not have port and default port is empty",
|
|
hostAndPort: "[::1%lo0]",
|
|
defaultPort: "",
|
|
wantHostAndPort: "[::1%lo0]",
|
|
},
|
|
{
|
|
name: "host is not valid",
|
|
hostAndPort: "host.example.com:port1:port2",
|
|
defaultPort: "42",
|
|
wantError: "address host.example.com:port1:port2: too many colons in address",
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
test := test
|
|
t.Run(test.name, func(t *testing.T) {
|
|
hostAndPort, err := hostAndPortWithDefaultPort(test.hostAndPort, test.defaultPort)
|
|
if test.wantError != "" {
|
|
require.EqualError(t, err, test.wantError)
|
|
} else {
|
|
require.NoError(t, err)
|
|
}
|
|
require.Equal(t, test.wantHostAndPort, hostAndPort)
|
|
})
|
|
}
|
|
}
|