Implement (inefficiently) search scopes

bottin.hcl.example

@@ -12,7 +12,7 @@ job "directory" {
     task "server" {
       driver = "docker"
       config {
-        image = "lxpz/bottin_amd64:7"
+        image = "lxpz/bottin_amd64:8"
         readonly_rootfs = true
         port_map {
           ldap_port = 389

read.go

@@ -97,6 +97,8 @@ func (server *Server) handleSearchInternal(state *State, w ldap.ResponseWriter,
 		return ldap.LDAPResultInsufficientAccessRights, fmt.Errorf("Please specify a base object on which you have read rights")
 	}
 
+	baseObjectLevel := len(strings.Split(baseObject, ","))
+
 	basePath, err := dnToConsul(baseObject)
 	if err != nil {
 		return ldap.LDAPResultInvalidDNSyntax, err
@@ -116,6 +118,16 @@ func (server *Server) handleSearchInternal(state *State, w ldap.ResponseWriter,
 	server.logger.Tracef("%#v", entries)
 
 	for dn, entry := range entries {
+		if r.Scope() == message.SearchRequestScopeBaseObject {
+			if dn != baseObject {
+				continue
+			}
+		} else if r.Scope() == message.SearchRequestSingleLevel {
+			objectLevel := len(strings.Split(dn, ","))
+			if objectLevel != baseObjectLevel + 1 {
+				continue
+			}
+		}
 		// Filter out if we don't match requested filter
 		matched, err := applyFilter(entry, r.Filter())
 		if err != nil {