X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matitaB%2Fmatita%2FmatitaAuthentication.ml;h=77aeed15f599c24f73d476b71e81aad45cc593d3;hb=fba2975ffd09ffb30a60500725c9991421445f37;hp=ad6bec47d6915bad556bc737660a4e723ce7e49b;hpb=16c004ddeff5cb72e1d58e16e85f039e3e2f8573;p=helm.git

diff --git a/matitaB/matita/matitaAuthentication.ml b/matitaB/matita/matitaAuthentication.ml
index ad6bec47d..77aeed15f 100644
--- a/matitaB/matita/matitaAuthentication.ml
+++ b/matitaB/matita/matitaAuthentication.ml
@@ -104,9 +104,13 @@ let serialize () =
 ;;
 
 let deserialize () =
-  let utbl_ch = open_in (config_path () ^ "/usertable.dump") in
-  user_tbl := Marshal.from_channel utbl_ch;
-  close_in utbl_ch;
+  (try
+    let utbl_ch = open_in (config_path () ^ "/usertable.dump") in
+    user_tbl := Marshal.from_channel utbl_ch;
+    close_in utbl_ch;
+  with
+    | Sys_error _ -> 
+       user_tbl := []; serialize());
   (* old_sessions are now invalid *)
   session_tbl := [];
 ;;
@@ -120,3 +124,10 @@ let add_user uid pw =
     user_tbl := (uid,(pw,None))::!user_tbl;
     serialize ()
 ;;
+
+let reset () =
+  user_tbl := [];
+  session_tbl := [];
+  MatitaFilesystem.reset_lib ();
+  serialize ();
+;;