From 440a813afff0260ed0030c9debf1c15a60121a7f Mon Sep 17 00:00:00 2001
From: Robert Ancell <robert.ancell@canonical.com>
Date: Thu, 15 Sep 2016 09:11:49 +0000
Subject: Limit prompt fields to 200 characters in case a key is being held
 down (e.g. by a cat).

---
 src/greeter-list.vala | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/greeter-list.vala')

diff --git a/src/greeter-list.vala b/src/greeter-list.vala
index 7fafdcb..5f830da 100644
--- a/src/greeter-list.vala
+++ b/src/greeter-list.vala
@@ -19,6 +19,8 @@
  *          Scott Sweeny <scott.sweeny@canonical.com>
  */
 
+private const int MAX_FIELD_SIZE = 200;
+
 private int get_grid_offset (int size)
 {
     return (int) (size % grid_size) / 2;
@@ -808,7 +810,10 @@ public abstract class GreeterList : FadableBox
             text = _("Password:");
         if (text == "login:")
             text = _("Username:");
-        add_prompt (text, type == LightDM.PromptType.SECRET);
+        var entry = add_prompt (text, type == LightDM.PromptType.SECRET);
+
+        /* Limit the number of characters in case a cat is sitting on the keyboard... */
+        entry.max_length = MAX_FIELD_SIZE;
     }
 
     protected virtual void authentication_complete_cb ()
-- 
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