add auditors diable

src/handler.ml

@@ -99,3 +99,16 @@ let management_auditors req server _env =
     Ok ""
   in
   respond_with_res res req
+
+let management_auditors_disable_jsont = AuditorSetupMessage.jsont
+
+let management_auditors_disable req auditor_pub server _env =
+  let open Management in
+  let db_conn = Vif.Server.device Devices.db_connection server in
+  let res =
+    let* v = Vif.Request.of_json req |> unwrap_err_msg in
+    let* () = verify_auditor_disable_sig auditor_pub v in
+    let* () = auditor_disable ~db_conn auditor_pub v in
+    Ok ""
+  in
+  respond_with_res res req

src/management.ml

@@ -264,9 +264,35 @@ let update_auditor ~db_conn
       let cmp = Timestamp.compare last_date validity_start |> Option.get in
       if cmp > 0 then Error "more recent management auditor already present"
       else
+        let enabled = true in
         let+ () =
           Pg.update_auditor db_conn ~auditor_pub ~auditor_url ~auditor_name
-            ~enabled:true ~change_date:validity_start
+            ~enabled ~change_date:validity_start
+          |> unwrap_err_caqti
+        in
+        ()
+
+let verify_auditor_disable_sig auditor_pub
+    AuditorTeardownMessage.{ master_sig; validity_end } =
+  let open Bin_sig.MasterDelAuditor in
+  verify ~key:Config.Exchange.master_public_key master_sig
+    { end_date= validity_end; auditor_pub }
+
+let auditor_disable ~db_conn auditor_pub
+    AuditorTeardownMessage.{ master_sig= _; validity_end } =
+  let* last_date_opt =
+    Pg.lookup_auditor_timestamp db_conn auditor_pub |> unwrap_err_caqti
+  in
+  match last_date_opt with
+  | None -> Error "auditor not found"
+  | Some last_date ->
+      let cmp = Timestamp.compare last_date validity_end |> Option.get in
+      if cmp > 0 then Error "more recent management auditor already present"
+      else
+        let enabled = false in
+        let+ () =
+          Pg.update_auditor db_conn ~auditor_pub ~auditor_url:""
+            ~auditor_name:"" ~enabled ~change_date:validity_end
           |> unwrap_err_caqti
         in
         ()