From 05a8049e927468bd86efd402ec3385388af222f8 Mon Sep 17 00:00:00 2001
From: Josef Moravec <josef.moravec@gmail.com>
Date: Fri, 5 Oct 2018 13:43:54 +0000
Subject: [PATCH] Bug 21502: Add check for YAML formatted system preferences to
 about page

So far there are these yaml formatted preferences:
    UpdateNotForLoanStatusOnCheckin
    OpacHiddenItems
    BibtexExportAdditionalFields
    RisExportAdditionalFields
    UpdateItemWhenLostFromHoldList
    MarcFieldsToOrder
    MarcItemFieldsToOrder

Test plan:
1) Add some badly formatted YAML into some of preferences listed above
2) Check the System information tab on About page for appropriate warnings
---
 about.pl                                         | 24 ++++++++++++++++++++++++
 koha-tmpl/intranet-tmpl/prog/en/modules/about.tt | 10 ++++++++--
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/about.pl b/about.pl
index 349dfc9668..f0becebac1 100755
--- a/about.pl
+++ b/about.pl
@@ -32,6 +32,7 @@ use XML::Simple;
 use Config;
 use Search::Elasticsearch;
 use Try::Tiny;
+use YAML;
 
 use C4::Output;
 use C4::Auth;
@@ -385,6 +386,29 @@ if (  C4::Context->preference('WebBasedSelfCheck')
     );
 }
 
+# Test YAML system preferences
+# FIXME: This is list of current YAML formatted prefs, should by type of preference
+my @yaml_prefs = (
+    "UpdateNotForLoanStatusOnCheckin",
+    "OpacHiddenItems",
+    "BibtexExportAdditionalFields",
+    "RisExportAdditionalFields",
+    "UpdateItemWhenLostFromHoldList",
+    "MarcFieldsToOrder",
+    "MarcItemFieldsToOrder"
+);
+my @bad_yaml_prefs;
+foreach my $syspref (@yaml_prefs) {
+    my $yaml = C4::Context->preference( $syspref );
+    if ( $yaml ) {
+        eval { YAML::Load( "$yaml\n\n" ); };
+        if ($@) {
+            push @bad_yaml_prefs, $syspref;
+        }
+    }
+}
+$template->param( 'bad_yaml_prefs' => \@bad_yaml_prefs ) if @bad_yaml_prefs;
+
 {
     my $dbh       = C4::Context->dbh;
     my $patrons = $dbh->selectall_arrayref(
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
index 2616a6efc3..36b33bce5b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
@@ -183,7 +183,7 @@
         </div>
 
         <div id="sysinfo">
-    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatron || warnPrefAnonymousPatron_PatronDoesNotExist || warnNoActiveCurrency || QueryParserError || warnIsRootUser || xml_config_warnings.size || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps %]
+    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatron || warnPrefAnonymousPatron_PatronDoesNotExist || warnNoActiveCurrency || QueryParserError || warnIsRootUser || xml_config_warnings.size || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps || bad_yaml_prefs %]
         [% IF (warnIsRootUser) %]
             <h2>Warning regarding current user</h2>
             <p>You are logged in as the database administrative user. This is not recommended because some parts of Koha will not function as expected when using this account.</p>
@@ -228,7 +228,7 @@
             <br/>
         [% END %]
 
-        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatron || warnPrefAnonymousPatron_PatronDoesNotExist || warnNoActiveCurrency || QueryParserError || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || oauth2_missing_deps %]
+        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatron || warnPrefAnonymousPatron_PatronDoesNotExist || warnNoActiveCurrency || QueryParserError || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || oauth2_missing_deps || bad_yaml_prefs %]
             <h2>Warnings regarding the system configuration</h2>
             <table>
                 <caption>Preferences and parameters</caption>
@@ -305,6 +305,11 @@
                     System preference 'RESTOAuth2ClientCredentials' is set, but the required Net::OAuth2::AuthorizationServer dependency is missing. The feature is disabled.
                     </td></tr>
                 [% END %]
+                [% IF bad_yaml_prefs %]
+                    <tr><th scope="row"><b>Warning</b> </th><td>
+                    Some YAML formatted system preferences have bad format: [% bad_yaml_prefs.join(', ') | html %]
+                    </td></tr>
+                [% END %]
             </table>
         [% END %]
 
@@ -376,6 +381,7 @@
             [% END %]
             </table>
         [% END %]
+
     [% ELSE %]
         <p>No warnings.</p>
     [% END %]
-- 
2.11.0