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outposts/ldap: Fix more case sensitivity issues. (#2144)

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This commit is contained in:
Ilya Kogan 2022-01-25 05:27:27 -05:00 committed by GitHub
parent 1c2b452406
commit 947ecec02b
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 44 additions and 37 deletions
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3
internal/outpost/ldap/bind/direct/direct.go
View file

@ -16,6 +16,7 @@ import (
"goauthentik.io/internal/outpost/ldap/flags" "goauthentik.io/internal/outpost/ldap/flags"
"goauthentik.io/internal/outpost/ldap/metrics" "goauthentik.io/internal/outpost/ldap/metrics"
"goauthentik.io/internal/outpost/ldap/server" "goauthentik.io/internal/outpost/ldap/server"
"goauthentik.io/internal/outpost/ldap/utils"
) )
const ContextUserKey = "ak_user" const ContextUserKey = "ak_user"
@ -35,7 +36,7 @@ func NewDirectBinder(si server.LDAPServerInstance) *DirectBinder {
} }
func (db *DirectBinder) GetUsername(dn string) (string, error) { func (db *DirectBinder) GetUsername(dn string) (string, error) {
if !strings.HasSuffix(strings.ToLower(dn), strings.ToLower(db.si.GetBaseDN())) { if !utils.HasSuffixNoCase(dn, db.si.GetBaseDN()) {
return "", errors.New("invalid base DN") return "", errors.New("invalid base DN")
} }
dns, err := goldap.ParseDN(dn) dns, err := goldap.ParseDN(dn)

18
internal/outpost/ldap/instance.go
View file

@ -140,26 +140,26 @@ func (pi *ProviderInstance) GetNeededObjects(scope int, baseDN string, filterOC
// If our requested base DN doesn't match any of the container DNs, then // If our requested base DN doesn't match any of the container DNs, then
// we're probably loading a user or group. If it does, then make sure our // we're probably loading a user or group. If it does, then make sure our
// scope will eventually take us to users or groups. // scope will eventually take us to users or groups.
if (baseDN == pi.BaseDN || strings.HasSuffix(baseDN, pi.UserDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetUserOCs()) { if (strings.EqualFold(baseDN, pi.BaseDN) || utils.HasSuffixNoCase(baseDN, pi.UserDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetUserOCs()) {
if baseDN != pi.UserDN && baseDN != pi.BaseDN || if baseDN != pi.UserDN && baseDN != pi.BaseDN ||
baseDN == pi.BaseDN && scope > 1 || strings.EqualFold(baseDN, pi.BaseDN) && scope > 1 ||
baseDN == pi.UserDN && scope > 0 { strings.EqualFold(baseDN, pi.UserDN) && scope > 0 {
needUsers = true needUsers = true
} }
} }
if (baseDN == pi.BaseDN || strings.HasSuffix(baseDN, pi.GroupDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetGroupOCs()) { if (strings.EqualFold(baseDN, pi.BaseDN) || utils.HasSuffixNoCase(baseDN, pi.GroupDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetGroupOCs()) {
if baseDN != pi.GroupDN && baseDN != pi.BaseDN || if baseDN != pi.GroupDN && baseDN != pi.BaseDN ||
baseDN == pi.BaseDN && scope > 1 || strings.EqualFold(baseDN, pi.BaseDN) && scope > 1 ||
baseDN == pi.GroupDN && scope > 0 { strings.EqualFold(baseDN, pi.GroupDN) && scope > 0 {
needGroups = true needGroups = true
} }
} }
if (baseDN == pi.BaseDN || strings.HasSuffix(baseDN, pi.VirtualGroupDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetVirtualGroupOCs()) { if (strings.EqualFold(baseDN, pi.BaseDN) || utils.HasSuffixNoCase(baseDN, pi.VirtualGroupDN)) && utils.IncludeObjectClass(filterOC, ldapConstants.GetVirtualGroupOCs()) {
if baseDN != pi.VirtualGroupDN && baseDN != pi.BaseDN || if baseDN != pi.VirtualGroupDN && baseDN != pi.BaseDN ||
baseDN == pi.BaseDN && scope > 1 || strings.EqualFold(baseDN, pi.BaseDN) && scope > 1 ||
baseDN == pi.VirtualGroupDN && scope > 0 { strings.EqualFold(baseDN, pi.VirtualGroupDN) && scope > 0 {
needUsers = true needUsers = true
} }
} }

24
internal/outpost/ldap/search/direct/direct.go
View file

@ -36,7 +36,7 @@ func NewDirectSearcher(si server.LDAPServerInstance) *DirectSearcher {
func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult, error) { func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult, error) {
accsp := sentry.StartSpan(req.Context(), "authentik.providers.ldap.search.check_access") accsp := sentry.StartSpan(req.Context(), "authentik.providers.ldap.search.check_access")
baseDN := strings.ToLower(ds.si.GetBaseDN()) baseDN := ds.si.GetBaseDN()
filterOC, err := ldap.GetFilterObjectClass(req.Filter) filterOC, err := ldap.GetFilterObjectClass(req.Filter)
if err != nil { if err != nil {
@ -59,7 +59,7 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
}).Inc() }).Inc()
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: Anonymous BindDN not allowed %s", req.BindDN) return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: Anonymous BindDN not allowed %s", req.BindDN)
} }
if !strings.HasSuffix(req.BindDN, ","+baseDN) { if !utils.HasSuffixNoCase(req.BindDN, ","+baseDN) {
metrics.RequestsRejected.With(prometheus.Labels{ metrics.RequestsRejected.With(prometheus.Labels{
"outpost_name": ds.si.GetOutpostName(), "outpost_name": ds.si.GetOutpostName(),
"type": "search", "type": "search",
@ -105,7 +105,7 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope := req.SearchRequest.Scope scope := req.SearchRequest.Scope
needUsers, needGroups := ds.si.GetNeededObjects(scope, req.BaseDN, filterOC) needUsers, needGroups := ds.si.GetNeededObjects(scope, req.BaseDN, filterOC)
if scope >= 0 && req.BaseDN == baseDN { if scope >= 0 && strings.EqualFold(req.BaseDN, baseDN) {
if utils.IncludeObjectClass(filterOC, constants.GetDomainOCs()) { if utils.IncludeObjectClass(filterOC, constants.GetDomainOCs()) {
entries = append(entries, ds.si.GetBaseEntry()) entries = append(entries, ds.si.GetBaseEntry())
} }
@ -209,8 +209,8 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, err return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, err
} }
if scope >= 0 && (req.BaseDN == ds.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ds.si.GetBaseUserDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ds.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ds.si.GetBaseUserDN())) {
singleu := strings.HasSuffix(req.BaseDN, ","+ds.si.GetBaseUserDN()) singleu := utils.HasSuffixNoCase(req.BaseDN, ","+ds.si.GetBaseUserDN())
if !singleu && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singleu && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseUserDN(), constants.OUUsers)) entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseUserDN(), constants.OUUsers))
@ -220,7 +220,7 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetUserOCs()) { if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetUserOCs()) {
for _, u := range *users { for _, u := range *users {
entry := ds.si.UserEntry(u) entry := ds.si.UserEntry(u)
if req.BaseDN == entry.DN || !singleu { if strings.EqualFold(req.BaseDN, entry.DN) || !singleu {
entries = append(entries, entry) entries = append(entries, entry)
} }
} }
@ -229,8 +229,8 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope += 1 // Return the scope to what it was before we descended scope += 1 // Return the scope to what it was before we descended
} }
if scope >= 0 && (req.BaseDN == ds.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ds.si.GetBaseGroupDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ds.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ds.si.GetBaseGroupDN())) {
singleg := strings.HasSuffix(req.BaseDN, ","+ds.si.GetBaseGroupDN()) singleg := utils.HasSuffixNoCase(req.BaseDN, ","+ds.si.GetBaseGroupDN())
if !singleg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singleg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseGroupDN(), constants.OUGroups)) entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseGroupDN(), constants.OUGroups))
@ -240,7 +240,7 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && groups != nil && utils.IncludeObjectClass(filterOC, constants.GetGroupOCs()) { if scope >= 0 && groups != nil && utils.IncludeObjectClass(filterOC, constants.GetGroupOCs()) {
for _, g := range *groups { for _, g := range *groups {
entry := group.FromAPIGroup(g, ds.si).Entry() entry := group.FromAPIGroup(g, ds.si).Entry()
if req.BaseDN == entry.DN || !singleg { if strings.EqualFold(req.BaseDN, entry.DN) || !singleg {
entries = append(entries, entry) entries = append(entries, entry)
} }
} }
@ -249,8 +249,8 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope += 1 // Return the scope to what it was before we descended scope += 1 // Return the scope to what it was before we descended
} }
if scope >= 0 && (req.BaseDN == ds.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ds.si.GetBaseVirtualGroupDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ds.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ds.si.GetBaseVirtualGroupDN())) {
singlevg := strings.HasSuffix(req.BaseDN, ","+ds.si.GetBaseVirtualGroupDN()) singlevg := utils.HasSuffixNoCase(req.BaseDN, ","+ds.si.GetBaseVirtualGroupDN())
if !singlevg || utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singlevg || utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseVirtualGroupDN(), constants.OUVirtualGroups)) entries = append(entries, utils.GetContainerEntry(filterOC, ds.si.GetBaseVirtualGroupDN(), constants.OUVirtualGroups))
@ -260,7 +260,7 @@ func (ds *DirectSearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetVirtualGroupOCs()) { if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetVirtualGroupOCs()) {
for _, u := range *users { for _, u := range *users {
entry := group.FromAPIUser(u, ds.si).Entry() entry := group.FromAPIUser(u, ds.si).Entry()
if req.BaseDN == entry.DN || !singlevg { if strings.EqualFold(req.BaseDN, entry.DN) || !singlevg {
entries = append(entries, entry) entries = append(entries, entry)
} }
} }

24
internal/outpost/ldap/search/memory/memory.go
View file

@ -39,7 +39,7 @@ func NewMemorySearcher(si server.LDAPServerInstance) *MemorySearcher {
func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult, error) { func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult, error) {
accsp := sentry.StartSpan(req.Context(), "authentik.providers.ldap.search.check_access") accsp := sentry.StartSpan(req.Context(), "authentik.providers.ldap.search.check_access")
baseDN := strings.ToLower(ms.si.GetBaseDN()) baseDN := ms.si.GetBaseDN()
filterOC, err := ldap.GetFilterObjectClass(req.Filter) filterOC, err := ldap.GetFilterObjectClass(req.Filter)
if err != nil { if err != nil {
@ -62,7 +62,7 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
}).Inc() }).Inc()
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: Anonymous BindDN not allowed %s", req.BindDN) return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: Anonymous BindDN not allowed %s", req.BindDN)
} }
if !strings.HasSuffix(req.BindDN, ","+baseDN) { if !utils.HasSuffixNoCase(req.BindDN, ","+baseDN) {
metrics.RequestsRejected.With(prometheus.Labels{ metrics.RequestsRejected.With(prometheus.Labels{
"outpost_name": ms.si.GetOutpostName(), "outpost_name": ms.si.GetOutpostName(),
"type": "search", "type": "search",
@ -92,7 +92,7 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope := req.SearchRequest.Scope scope := req.SearchRequest.Scope
needUsers, needGroups := ms.si.GetNeededObjects(scope, req.BaseDN, filterOC) needUsers, needGroups := ms.si.GetNeededObjects(scope, req.BaseDN, filterOC)
if scope >= 0 && req.BaseDN == baseDN { if scope >= 0 && strings.EqualFold(req.BaseDN, baseDN) {
if utils.IncludeObjectClass(filterOC, constants.GetDomainOCs()) { if utils.IncludeObjectClass(filterOC, constants.GetDomainOCs()) {
entries = append(entries, ms.si.GetBaseEntry()) entries = append(entries, ms.si.GetBaseEntry())
} }
@ -155,8 +155,8 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, err return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, err
} }
if scope >= 0 && (req.BaseDN == ms.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ms.si.GetBaseUserDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ms.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ms.si.GetBaseUserDN())) {
singleu := strings.HasSuffix(req.BaseDN, ","+ms.si.GetBaseUserDN()) singleu := utils.HasSuffixNoCase(req.BaseDN, ","+ms.si.GetBaseUserDN())
if !singleu && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singleu && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseUserDN(), constants.OUUsers)) entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseUserDN(), constants.OUUsers))
@ -166,7 +166,7 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetUserOCs()) { if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetUserOCs()) {
for _, u := range *users { for _, u := range *users {
entry := ms.si.UserEntry(u) entry := ms.si.UserEntry(u)
if req.BaseDN == entry.DN || !singleu { if strings.EqualFold(req.BaseDN, entry.DN) || !singleu {
entries = append(entries, entry) entries = append(entries, entry)
} }
} }
@ -175,8 +175,8 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope += 1 // Return the scope to what it was before we descended scope += 1 // Return the scope to what it was before we descended
} }
if scope >= 0 && (req.BaseDN == ms.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ms.si.GetBaseGroupDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ms.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ms.si.GetBaseGroupDN())) {
singleg := strings.HasSuffix(req.BaseDN, ","+ms.si.GetBaseGroupDN()) singleg := utils.HasSuffixNoCase(req.BaseDN, ","+ms.si.GetBaseGroupDN())
if !singleg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singleg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseGroupDN(), constants.OUGroups)) entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseGroupDN(), constants.OUGroups))
@ -185,7 +185,7 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && groups != nil && utils.IncludeObjectClass(filterOC, constants.GetGroupOCs()) { if scope >= 0 && groups != nil && utils.IncludeObjectClass(filterOC, constants.GetGroupOCs()) {
for _, g := range groups { for _, g := range groups {
if req.BaseDN == g.DN || !singleg { if strings.EqualFold(req.BaseDN, g.DN) || !singleg {
entries = append(entries, g.Entry()) entries = append(entries, g.Entry())
} }
} }
@ -194,8 +194,8 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
scope += 1 // Return the scope to what it was before we descended scope += 1 // Return the scope to what it was before we descended
} }
if scope >= 0 && (req.BaseDN == ms.si.GetBaseDN() || strings.HasSuffix(req.BaseDN, ms.si.GetBaseVirtualGroupDN())) { if scope >= 0 && (strings.EqualFold(req.BaseDN, ms.si.GetBaseDN()) || utils.HasSuffixNoCase(req.BaseDN, ms.si.GetBaseVirtualGroupDN())) {
singlevg := strings.HasSuffix(req.BaseDN, ","+ms.si.GetBaseVirtualGroupDN()) singlevg := utils.HasSuffixNoCase(req.BaseDN, ","+ms.si.GetBaseVirtualGroupDN())
if !singlevg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) { if !singlevg && utils.IncludeObjectClass(filterOC, constants.GetContainerOCs()) {
entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseVirtualGroupDN(), constants.OUVirtualGroups)) entries = append(entries, utils.GetContainerEntry(filterOC, ms.si.GetBaseVirtualGroupDN(), constants.OUVirtualGroups))
@ -205,7 +205,7 @@ func (ms *MemorySearcher) Search(req *search.Request) (ldap.ServerSearchResult,
if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetVirtualGroupOCs()) { if scope >= 0 && users != nil && utils.IncludeObjectClass(filterOC, constants.GetVirtualGroupOCs()) {
for _, u := range *users { for _, u := range *users {
entry := group.FromAPIUser(u, ms.si).Entry() entry := group.FromAPIUser(u, ms.si).Entry()
if req.BaseDN == entry.DN || !singlevg { if strings.EqualFold(req.BaseDN, entry.DN) || !singlevg {
entries = append(entries, entry) entries = append(entries, entry)
} }
} }

1
internal/outpost/ldap/search/request.go
View file

@ -26,7 +26,6 @@ type Request struct {
func NewRequest(bindDN string, searchReq ldap.SearchRequest, conn net.Conn) (*Request, *sentry.Span) { func NewRequest(bindDN string, searchReq ldap.SearchRequest, conn net.Conn) (*Request, *sentry.Span) {
rid := uuid.New().String() rid := uuid.New().String()
bindDN = strings.ToLower(bindDN) bindDN = strings.ToLower(bindDN)
searchReq.BaseDN = strings.ToLower(searchReq.BaseDN)
span := sentry.StartSpan(context.TODO(), "authentik.providers.ldap.search", sentry.TransactionName("authentik.providers.ldap.search")) span := sentry.StartSpan(context.TODO(), "authentik.providers.ldap.search", sentry.TransactionName("authentik.providers.ldap.search"))
span.Description = fmt.Sprintf("%s (%s)", searchReq.BaseDN, ldap.ScopeMap[searchReq.Scope]) span.Description = fmt.Sprintf("%s (%s)", searchReq.BaseDN, ldap.ScopeMap[searchReq.Scope])
span.SetTag("request_uid", rid) span.SetTag("request_uid", rid)

5
internal/outpost/ldap/utils/utils.go
View file

@ -2,6 +2,7 @@ package utils
import ( import (
"reflect" "reflect"
"strings"
"github.com/nmcclain/ldap" "github.com/nmcclain/ldap"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
@ -117,3 +118,7 @@ func GetContainerEntry(filterOC string, dn string, ou string) *ldap.Entry {
return nil return nil
} }
func HasSuffixNoCase(s1 string, s2 string) bool {
return strings.HasSuffix(strings.ToLower(s1), strings.ToLower(s2))
}

6
internal/outpost/ldap/utils/utils_group.go
View file

@ -1,6 +1,8 @@
package utils package utils
import ( import (
"strings"
goldap "github.com/go-ldap/ldap/v3" goldap "github.com/go-ldap/ldap/v3"
ber "github.com/nmcclain/asn1-ber" ber "github.com/nmcclain/asn1-ber"
"github.com/nmcclain/ldap" "github.com/nmcclain/ldap"
@ -41,7 +43,7 @@ func parseFilterForGroupSingle(req api.ApiCoreGroupsListRequest, f *ber.Packet)
// Switch on type of the value, then check the key // Switch on type of the value, then check the key
switch vv := v.(type) { switch vv := v.(type) {
case string: case string:
switch k { switch strings.ToLower(k.(string)) {
case "cn": case "cn":
return req.Name(vv), false return req.Name(vv), false
case "member": case "member":
@ -54,7 +56,7 @@ func parseFilterForGroupSingle(req api.ApiCoreGroupsListRequest, f *ber.Packet)
username := userDN.RDNs[0].Attributes[0].Value username := userDN.RDNs[0].Attributes[0].Value
// If the DN's first ou is virtual-groups, ignore this filter // If the DN's first ou is virtual-groups, ignore this filter
if len(userDN.RDNs) > 1 { if len(userDN.RDNs) > 1 {
if userDN.RDNs[1].Attributes[0].Value == constants.OUVirtualGroups || userDN.RDNs[1].Attributes[0].Value == constants.OUGroups { if strings.EqualFold(userDN.RDNs[1].Attributes[0].Value, constants.OUVirtualGroups) || strings.EqualFold(userDN.RDNs[1].Attributes[0].Value, constants.OUGroups) {
// Since we know we're not filtering anything, skip this request // Since we know we're not filtering anything, skip this request
return req, true return req, true
} }