ldap-proxy/internal/ldap/ldap.go
2020-08-22 20:49:54 -07:00

97 lines
2.2 KiB
Go

package ldap
import (
"os"
"os/signal"
"strings"
"syscall"
"github.com/hashicorp/go-hclog"
ldap "github.com/ps78674/ldapserver"
)
// New returns a new ldap server instance
func New(l hclog.Logger, nacl naClient) *server {
x := new(server)
x.l = l.Named("ldap")
x.c = nacl
x.Server = ldap.NewServer()
routes := ldap.NewRouteMux()
routes.NotFound(x.handleNotFound)
routes.Abandon(x.handleAbandon)
routes.Bind(x.handleBind)
routes.Search(x.handleSearchDSE).
BaseDn("").
Scope(ldap.SearchRequestScopeBaseObject).
Filter("(objectclass=*)").
Label("Search - ROOT DSE")
routes.Search(x.handleSearchMyCompany).
BaseDn("o=My Company, c=US").
Scope(ldap.SearchRequestScopeBaseObject).
Label("Search - Compagny Root")
routes.Search(x.handleSearch).Label("Search - Generic")
x.Handle(routes)
return x
}
// Serve serves a plaintext DSA on the provided bind string.
func (s *server) Serve(bind string) error {
chErr := make(chan error)
defer close(chErr)
go s.ListenAndServe(bind, chErr)
if err := <-chErr; err != nil {
s.l.Error("Error from main server thread", "error", err)
return err
}
ch := make(chan os.Signal, 5)
signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
<-ch
close(ch)
s.Stop()
return nil
}
func (s *server) handleNotFound(w ldap.ResponseWriter, r *ldap.Message) {
switch r.ProtocolOpType() {
case ldap.ApplicationBindRequest:
res := ldap.NewBindResponse(ldap.LDAPResultSuccess)
res.SetDiagnosticMessage("Default binding behavior set to return Success")
w.Write(res)
default:
res := ldap.NewResponse(ldap.LDAPResultUnwillingToPerform)
res.SetDiagnosticMessage("Operation not implemented by server")
w.Write(res)
}
}
func (s *server) handleAbandon(w ldap.ResponseWriter, m *ldap.Message) {
var req = m.GetAbandonRequest()
// retreive the request to abandon, and send a abort signal to it
if requestToAbandon, ok := m.Client.GetMessageByID(int(req)); ok {
requestToAbandon.Abandon()
}
}
func (s *server) SetDomain(domain string) {
nc := "dc=netauth,"
parts := strings.Split(domain, ".")
for i := range parts {
nc += "dc=" + parts[i] + ","
}
nc = strings.TrimSuffix(nc, ",")
s.nc = strings.Split(nc, ",")
for i := range s.nc {
s.nc[i] = strings.TrimSpace(s.nc[i])
}
}