diff --git a/bin/lib/ldap.py b/bin/lib/ldap.py
index dfee7e3..f8d427d 100644
--- a/bin/lib/ldap.py
+++ b/bin/lib/ldap.py
@@ -108,3 +108,17 @@ class Ldap:
         return True
 
 
+    def update_user(self, email, field, value):
+        """
+        Mettre à jour un champ.
+        """
+        if not validate_email(email):
+            return False
+
+        # Construire le DN
+        dn = f"cn={email},ou=users,{self.ldap_root}"
+
+        mod_attrs = [(ldap.MOD_REPLACE, field, value)]
+
+        self.ldap_connection.modify_s(dn, mod_attrs)
+        return True
diff --git a/bin/lib/misc.py b/bin/lib/misc.py
new file mode 100644
index 0000000..fd4ad39
--- /dev/null
+++ b/bin/lib/misc.py
@@ -0,0 +1,12 @@
+import os
+
+def get_disk_size(path):
+    total_size = 0
+    for dirpath, dirnames, filenames in os.walk(path):
+        for f in filenames:
+            fp = os.path.join(dirpath, f)
+            # skip if it is symbolic link
+            if not os.path.islink(fp):
+                total_size += os.path.getsize(fp)
+
+    return total_size
\ No newline at end of file