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providers/ldap: Improve compatibility with LDAP clients (#4750) 

* Fixed invalid LDAP attributes by replacing '.'s and '/'s with '-'

* Leave old fields for now for backward compatibility

* Add forgotten depreceated field

* Fix tests

* Fix tests

* use shorter attribute names

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* sanitize attributes

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* keep both sanitized and unsanitized user fields

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add sanitized fields to test

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: Jens Langhammer <jens@goauthentik.io>
This commit is contained in:
sdimovv 2023-02-22 15:18:22 +02:00 committed by GitHub
parent 75866406dc
commit 51c6a14786
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 86 additions and 39 deletions
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10
internal/outpost/ldap/entries.go
View File

@ -11,7 +11,9 @@ import (
func (pi *ProviderInstance) UserEntry(u api.User) *ldap.Entry {
dn := pi.GetUserDN(u.Username)
attrs := utils.AKAttrsToLDAP(u.Attributes)
attrs := utils.AttributesToLDAP(u.Attributes, false)
sanitizedAttrs := utils.AttributesToLDAP(u.Attributes, true)
attrs = append(attrs, sanitizedAttrs...)
if u.IsActive == nil {
u.IsActive = api.PtrBool(false)
@ -20,9 +22,13 @@ func (pi *ProviderInstance) UserEntry(u api.User) *ldap.Entry {
u.Email = api.PtrString("")
}
attrs = utils.EnsureAttributes(attrs, map[string][]string{
"memberOf": pi.GroupsForUser(u),
// Old fields for backwards compatibility
"goauthentik.io/ldap/active": {strconv.FormatBool(*u.IsActive)},
"goauthentik.io/ldap/superuser": {strconv.FormatBool(u.IsSuperuser)},
// End old fields
"ak-active": {strconv.FormatBool(*u.IsActive)},
"ak-superuser": {strconv.FormatBool(u.IsSuperuser)},
"memberOf": pi.GroupsForUser(u),
"cn": {u.Username},
"sAMAccountName": {u.Username},
"uid": {u.Uid},

9
internal/outpost/ldap/group/group.go
View File

@ -22,7 +22,9 @@ type LDAPGroup struct {
}
func (lg *LDAPGroup) Entry() *ldap.Entry {
attrs := utils.AKAttrsToLDAP(lg.AKAttributes)
attrs := utils.AttributesToLDAP(lg.AKAttributes, false)
sanitizedAttrs := utils.AttributesToLDAP(lg.AKAttributes, true)
attrs = append(attrs, sanitizedAttrs...)
objectClass := []string{constants.OCGroup, constants.OCGroupOfUniqueNames, constants.OCGroupOfNames, constants.OCAKGroup}
if lg.IsVirtualGroup {
@ -30,9 +32,12 @@ func (lg *LDAPGroup) Entry() *ldap.Entry {
}
attrs = utils.EnsureAttributes(attrs, map[string][]string{
// Old fields for backwards compatibility
"goauthentik.io/ldap/superuser": {strconv.FormatBool(lg.IsSuperuser)},
// End old fields
"ak-superuser": {strconv.FormatBool(lg.IsSuperuser)},
"objectClass": objectClass,
"member": lg.Member,
"goauthentik.io/ldap/superuser": {strconv.FormatBool(lg.IsSuperuser)},
"cn": {lg.CN},
"uid": {lg.Uid},
"sAMAccountName": {lg.CN},

13
internal/outpost/ldap/utils/utils.go
View File

@ -9,6 +9,14 @@ import (
ldapConstants "goauthentik.io/internal/outpost/ldap/constants"
)
func AttributeKeySanitize(key string) string {
return strings.ReplaceAll(
strings.ReplaceAll(key, "/", "-"),
".",
"",
)
}
func stringify(in interface{}) *string {
switch t := in.(type) {
case string:
@ -36,13 +44,16 @@ func stringify(in interface{}) *string {
}
}
func AKAttrsToLDAP(attrs map[string]interface{}) []*ldap.EntryAttribute {
func AttributesToLDAP(attrs map[string]interface{}, sanitize bool) []*ldap.EntryAttribute {
attrList := []*ldap.EntryAttribute{}
if attrs == nil {
return attrList
}
for attrKey, attrValue := range attrs {
entry := &ldap.EntryAttribute{Name: attrKey}
if sanitize {
entry.Name = AttributeKeySanitize(attrKey)
}
switch t := attrValue.(type) {
case []string:
entry.Values = t

36
internal/outpost/ldap/utils/utils_test.go
View File

@ -19,16 +19,16 @@ func TestAKAttrsToLDAP_String(t *testing.T) {
u.Attributes = map[string]interface{}{
"foo": "bar",
}
assert.Equal(t, 1, len(AKAttrsToLDAP(u.Attributes)))
assert.Equal(t, "foo", AKAttrsToLDAP(u.Attributes)[0].Name)
assert.Equal(t, []string{"bar"}, AKAttrsToLDAP(u.Attributes)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(u.Attributes, true)))
assert.Equal(t, "foo", AttributesToLDAP(u.Attributes, true)[0].Name)
assert.Equal(t, []string{"bar"}, AttributesToLDAP(u.Attributes, true)[0].Values)
// pointer string
u.Attributes = map[string]interface{}{
"foo": api.PtrString("bar"),
}
assert.Equal(t, 1, len(AKAttrsToLDAP(u.Attributes)))
assert.Equal(t, "foo", AKAttrsToLDAP(u.Attributes)[0].Name)
assert.Equal(t, []string{"bar"}, AKAttrsToLDAP(u.Attributes)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(u.Attributes, true)))
assert.Equal(t, "foo", AttributesToLDAP(u.Attributes, true)[0].Name)
assert.Equal(t, []string{"bar"}, AttributesToLDAP(u.Attributes, true)[0].Values)
}
func TestAKAttrsToLDAP_String_List(t *testing.T) {
@ -37,16 +37,16 @@ func TestAKAttrsToLDAP_String_List(t *testing.T) {
u.Attributes = map[string]interface{}{
"foo": []string{"bar"},
}
assert.Equal(t, 1, len(AKAttrsToLDAP(u.Attributes)))
assert.Equal(t, "foo", AKAttrsToLDAP(u.Attributes)[0].Name)
assert.Equal(t, []string{"bar"}, AKAttrsToLDAP(u.Attributes)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(u.Attributes, true)))
assert.Equal(t, "foo", AttributesToLDAP(u.Attributes, true)[0].Name)
assert.Equal(t, []string{"bar"}, AttributesToLDAP(u.Attributes, true)[0].Values)
// pointer string list
u.Attributes = map[string]interface{}{
"foo": &[]string{"bar"},
}
assert.Equal(t, 1, len(AKAttrsToLDAP(u.Attributes)))
assert.Equal(t, "foo", AKAttrsToLDAP(u.Attributes)[0].Name)
assert.Equal(t, []string{"bar"}, AKAttrsToLDAP(u.Attributes)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(u.Attributes, true)))
assert.Equal(t, "foo", AttributesToLDAP(u.Attributes, true)[0].Name)
assert.Equal(t, []string{"bar"}, AttributesToLDAP(u.Attributes, true)[0].Values)
}
func TestAKAttrsToLDAP_Dict(t *testing.T) {
@ -56,9 +56,9 @@ func TestAKAttrsToLDAP_Dict(t *testing.T) {
"foo": "bar",
},
}
assert.Equal(t, 1, len(AKAttrsToLDAP(d)))
assert.Equal(t, "foo", AKAttrsToLDAP(d)[0].Name)
assert.Equal(t, []string{"map[foo:bar]"}, AKAttrsToLDAP(d)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(d, true)))
assert.Equal(t, "foo", AttributesToLDAP(d, true)[0].Name)
assert.Equal(t, []string{"map[foo:bar]"}, AttributesToLDAP(d, true)[0].Values)
}
func TestAKAttrsToLDAP_Mixed(t *testing.T) {
@ -69,7 +69,7 @@ func TestAKAttrsToLDAP_Mixed(t *testing.T) {
6,
},
}
assert.Equal(t, 1, len(AKAttrsToLDAP(d)))
assert.Equal(t, "foo", AKAttrsToLDAP(d)[0].Name)
assert.Equal(t, []string{"foo", "6"}, AKAttrsToLDAP(d)[0].Values)
assert.Equal(t, 1, len(AttributesToLDAP(d, true)))
assert.Equal(t, "foo", AttributesToLDAP(d, true)[0].Name)
assert.Equal(t, []string{"foo", "6"}, AttributesToLDAP(d, true)[0].Values)
}

16
tests/e2e/test_provider_ldap.py
View File

@ -225,10 +225,16 @@ class TestProviderLDAP(SeleniumTestCase):
"uidNumber": [str(2000 + o_user.pk)],
"gidNumber": [str(2000 + o_user.pk)],
"memberOf": [],
# Old fields for backwards compatibility
"goauthentik.io/ldap/active": ["true"],
"goauthentik.io/ldap/superuser": ["false"],
"goauthentik.io/user/override-ips": ["true"],
"goauthentik.io/user/service-account": ["true"],
# End old fields
"ak-active": ["true"],
"ak-superuser": ["false"],
"goauthentikio-user-override-ips": ["true"],
"goauthentikio-user-service-account": ["true"],
},
"type": "searchResEntry",
},
@ -250,10 +256,16 @@ class TestProviderLDAP(SeleniumTestCase):
"uidNumber": [str(2000 + embedded_account.pk)],
"gidNumber": [str(2000 + embedded_account.pk)],
"memberOf": [],
# Old fields for backwards compatibility
"goauthentik.io/ldap/active": ["true"],
"goauthentik.io/ldap/superuser": ["false"],
"goauthentik.io/user/override-ips": ["true"],
"goauthentik.io/user/service-account": ["true"],
# End old fields
"ak-active": ["true"],
"ak-superuser": ["false"],
"goauthentikio-user-override-ips": ["true"],
"goauthentikio-user-service-account": ["true"],
},
"type": "searchResEntry",
},
@ -278,8 +290,12 @@ class TestProviderLDAP(SeleniumTestCase):
f"cn={group.name},ou=groups,dc=ldap,dc=goauthentik,dc=io"
for group in self.user.ak_groups.all()
],
# Old fields for backwards compatibility
"goauthentik.io/ldap/active": ["true"],
"goauthentik.io/ldap/superuser": ["true"],
# End old fields
"ak-active": ["true"],
"ak-superuser": ["true"],
"extraAttribute": ["bar"],
},
"type": "searchResEntry",

13
website/docs/providers/ldap/index.md
View File

@ -29,8 +29,13 @@ The following fields are currently sent for users:
- "organizationalPerson"
- "goauthentik.io/ldap/user"
- `memberOf`: A list of all DNs that the user is a member of
- `goauthentik.io/ldap/active`: "true" if the account is active, otherwise "false"
- `goauthentik.io/ldap/superuser`: "true" if the account is part of a group with superuser permissions, otherwise "false"
- `ak-active`: "true" if the account is active, otherwise "false"
- `ak-superuser`: "true" if the account is part of a group with superuser permissions, otherwise "false"
:::warning
The use of the `goauthentik.io/ldap/active` and `goauthentik.io/ldap/superuser` attributes is deprecated as of authentik 2023.3. They will be removed completely in a future release.
Use the replacements fields above instead.
:::
The following fields are current set for groups:
@ -51,6 +56,10 @@ The virtual groups gidNumber is equal to the uidNumber of the user.
Starting with 2021.9.1, custom attributes will override the inbuilt attributes.
:::
:::info
Starting with 2023.3, periods and slashes in custom attributes will be sanitized.
:::
## SSL
You can also configure SSL for your LDAP Providers by selecting a certificate and a server name in the provider settings.