Attachment 42644 Details for Bug 14844 – Bug 14844 - Corrupted storable string. When adding/editing an Item, cookie LastCreatedItem might be corrupted.

[patch] Bug 14844 - Corrupted storable string. When adding/editing an Item, cookie LastCreatedItem might be corrupted.

Bug-14844---Corrupted-storable-string-When-addinge.patch (text/plain), 2.24 KB, created by Olli-Antti Kivilahti on 2015-09-17 10:31:51 UTC

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Creator: Olli-Antti Kivilahti

Created: 2015-09-17 10:31:51 UTC

Size: 2.24 KB

patch

obsolete

>From a2e7693ea5079ebabcd06d528dcae12fc27fd527 Mon Sep 17 00:00:00 2001
>From: Olli-Antti Kivilahti <olli-antti.kivilahti@jns.fi>
>Date: Thu, 17 Sep 2015 13:23:49 +0300
>Subject: [PATCH] Bug 14844 - Corrupted storable string. When adding/editing an
> Item, cookie LastCreatedItem might be corrupted.
>
>No idea how to replicate this issue but we have been getting several reports
>about the following error:
>
>Software error:
>
>Corrupted storable string (binary v2.9) at /usr/lib/perl/5.18/Storable.pm line
>417, at /home/koha/kohaclone/cataloguing/additem.pl line 375.
>
>TEST PLAN:
>1. Add or modify an Item.
>2. No observed changes.
>?. We don't know what causes this but we know that add/modify Item occasionally
>   crashes due to failure of a cookie thawing.
>
>This patch prevents the whole program from dying, because this error is not
>critical enough to warrant dying.
>Also there is no centralized mechanism in Koha for showing messages to the
>user, so there is no easy and convenient way to warn the user that the:
>'LastCreatedItem'-cookie or the systempreference 'PrefillItem' is
>malfunctioning.
>
>So we instead just warn to the server logs with the malfunctioning cookie in
>hopes of nailing down what causes the issues.
>---
> cataloguing/additem.pl | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
>diff --git a/cataloguing/additem.pl b/cataloguing/additem.pl
>index 38f5d92..cc3aba5 100755
>--- a/cataloguing/additem.pl
>+++ b/cataloguing/additem.pl
>@@ -418,9 +418,15 @@ if ($prefillitem) {
>     my $lastitemcookie = $input->cookie('LastCreatedItem');
>     if ($lastitemcookie) {
>         $lastitemcookie = uri_unescape($lastitemcookie);
>-        if ( thaw($lastitemcookie) ) {
>-            $cookieitemrecord = thaw($lastitemcookie) ;
>-            $cookieitemrecord = removeFieldsForPrefill($cookieitemrecord);
>+        eval {
>+            if ( thaw($lastitemcookie) ) {
>+                $cookieitemrecord = thaw($lastitemcookie);
>+                $cookieitemrecord = removeFieldsForPrefill($cookieitemrecord);
>+            }
>+        };
>+        if ($@) {
>+            $lastitemcookie = 'undef' unless $lastitemcookie;
>+            warn "Storable::thaw failed to thaw LastCreatedItem-cookie. Cookie value '$lastitemcookie'. Caught error follows: '$@'";
>         }
>     }
> }
>-- 
>1.9.1

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