From 4e030f77264f7f7a11029a4390bc4ec990d65829 Mon Sep 17 00:00:00 2001
From: James Fournie <jfournie@sitka.bclibraries.ca>
Date: Fri, 22 Feb 2013 17:28:29 -0800
Subject: [PATCH] Server maintenance message via Apache config

This adds a custom maintenance message which you can issue in your
Apache config by setting the environment variable "MAINTENANCE_MESSAGE"
and restarting/reloading Apache.  This message appears in the TPAC for
both staff and patrons in the form of a red banner across the top of the
screen.

Signed-off-by: James Fournie <jfournie@sitka.bclibraries.ca>
Signed-off-by: Dan Scott <dscott@laurentian.ca>
Signed-off-by: Ben Shum <bshum@biblio.org>
---
 Open-ILS/examples/apache/eg.conf.in                    |  3 +++
 Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader.pm   |  2 ++
 Open-ILS/src/templates/opac/css/style.css.tt2          | 10 +++++++++-
 Open-ILS/src/templates/opac/parts/topnav.tt2           |  5 +++++
 Open-ILS/web/opac/skin/default/xml/home/index_body.xml |  6 ++++++
 5 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/Open-ILS/examples/apache/eg.conf.in b/Open-ILS/examples/apache/eg.conf.in
index d095e15b2a..53347df13e 100644
--- a/Open-ILS/examples/apache/eg.conf.in
+++ b/Open-ILS/examples/apache/eg.conf.in
@@ -149,3 +149,6 @@ NameVirtualHost *:443
     Include eg_vhost.conf
 </VirtualHost>
 
+# Set a maintenance message for notifying OPAC users of scheduled downtime
+# This can be put in specific vhosts as needed
+#SetEnv MAINTENANCE_MESSAGE "The system will be down tomorrow night so use the card catalog at that time."
diff --git a/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader.pm b/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader.pm
index 0838a29eb5..e2de1e8a85 100644
--- a/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader.pm
+++ b/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader.pm
@@ -243,6 +243,8 @@ sub load_common {
         return $self->redirect_ssl unless $self->cgi->https;
     }
 
+    $ctx->{maintenance_message} = $self->apache->subprocess_env("MAINTENANCE_MESSAGE");
+
     $ctx->{referer} = $self->cgi->referer;
     $ctx->{path_info} = $self->cgi->path_info;
     $ctx->{full_path} = $ctx->{base_path} . $self->cgi->path_info;
diff --git a/Open-ILS/src/templates/opac/css/style.css.tt2 b/Open-ILS/src/templates/opac/css/style.css.tt2
index 63c20bfbca..00d90d975d 100644
--- a/Open-ILS/src/templates/opac/css/style.css.tt2
+++ b/Open-ILS/src/templates/opac/css/style.css.tt2
@@ -1527,4 +1527,12 @@ a.preflib_change {
     padding-top: 1em;
     padding-bottom: 0.5em;
 	font-style: italic;
-}
\ No newline at end of file
+}
+
+#maintenance_message {
+    padding: 5px;
+    width: 100%;
+    background-color: [% css_colors.text_alert %];
+    color: [% css_colors.text_invert %];
+    text-align: center;
+}
diff --git a/Open-ILS/src/templates/opac/parts/topnav.tt2 b/Open-ILS/src/templates/opac/parts/topnav.tt2
index 7ac772888f..b6ba5e72b9 100644
--- a/Open-ILS/src/templates/opac/parts/topnav.tt2
+++ b/Open-ILS/src/templates/opac/parts/topnav.tt2
@@ -1,3 +1,8 @@
+[% IF ctx.maintenance_message %]
+<div id="maintenance_message">
+[%= ctx.maintenance_message %]
+</div>
+[% END %]
 [% IF !ctx.is_staff %]
 <div id="header-wrap">
 <div id="header">
diff --git a/Open-ILS/web/opac/skin/default/xml/home/index_body.xml b/Open-ILS/web/opac/skin/default/xml/home/index_body.xml
index c7d20f6b03..d65a6f74e4 100644
--- a/Open-ILS/web/opac/skin/default/xml/home/index_body.xml
+++ b/Open-ILS/web/opac/skin/default/xml/home/index_body.xml
@@ -8,6 +8,12 @@
 		</p>
 	</noscript>
 
+<!--#if expr="$MAINTENANCE_MESSAGE"-->
+    <div style="padding: 5px; width: 100%; background-color: #f00; color: #fff; text-align: center;">
+            <!--#echo var="MAINTENANCE_MESSAGE"-->
+    </div>
+<!--#endif-->
+
 	<table id='toptable' width='100%' style='border-collapse: collapse;'>
 		<tbody>
 			<tr>
-- 
2.43.2