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authentik/internal/outpost/ldap/utils/utils_group.go

70 lines
1.8 KiB
Go

package utils
import (
goldap "github.com/go-ldap/ldap/v3"
ber "github.com/nmcclain/asn1-ber"
"github.com/nmcclain/ldap"
"goauthentik.io/api"
"goauthentik.io/internal/outpost/ldap/constants"
)
func ParseFilterForGroup(req api.ApiCoreGroupsListRequest, f *ber.Packet, skip bool) (api.ApiCoreGroupsListRequest, bool) {
switch f.Tag {
case ldap.FilterEqualityMatch:
return parseFilterForGroupSingle(req, f)
case ldap.FilterAnd:
for _, child := range f.Children {
r, s := ParseFilterForGroup(req, child, skip)
skip = skip || s
req = r
}
return req, skip
}
return req, skip
}
func parseFilterForGroupSingle(req api.ApiCoreGroupsListRequest, f *ber.Packet) (api.ApiCoreGroupsListRequest, bool) {
// We can only handle key = value pairs here
if len(f.Children) < 2 {
return req, false
}
k := f.Children[0].Value
// Ensure key is string
if _, ok := k.(string); !ok {
return req, false
}
v := f.Children[1].Value
// Null values are ignored
if v == nil {
return req, false
}
// Switch on type of the value, then check the key
switch vv := v.(type) {
case string:
switch k {
case "cn":
return req.Name(vv), false
case "member":
fallthrough
case "memberOf":
userDN, err := goldap.ParseDN(vv)
if err != nil {
return req.MembersByUsername([]string{vv}), false
}
username := userDN.RDNs[0].Attributes[0].Value
// If the DN's first ou is virtual-groups, ignore this filter
if len(userDN.RDNs) > 1 {
if userDN.RDNs[1].Attributes[0].Value == constants.OUVirtualGroups || userDN.RDNs[1].Attributes[0].Value == constants.OUGroups {
// Since we know we're not filtering anything, skip this request
return req, true
}
}
return req.MembersByUsername([]string{username}), false
}
//TODO: Support int
default:
return req, false
}
return req, false
}