From 02a4e24bc169d3d43e5255b845da06bf3d905cc9 Mon Sep 17 00:00:00 2001
From: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Date: Wed, 27 Oct 2021 11:27:18 +0100
Subject: [PATCH] Bug 28955: Add OPAC_BRANCH_DEFAULT

This patch adds support for OPAC_BRANCH_DEFAULT as an environment option
that can be passed via apache with either SetEnv or as a header for
plack.  It allows setting a default branch for the anonymous opac
session such that you can display the right opac content blocks prior to
login if you have set up per branch URI's.
---
 C4/Auth.pm                | 3 +++
 Koha/Middleware/SetEnv.pm | 1 +
 2 files changed, 4 insertions(+)

diff --git a/C4/Auth.pm b/C4/Auth.pm
index a9bd7fe365..1452f3218c 100644
--- a/C4/Auth.pm
+++ b/C4/Auth.pm
@@ -438,6 +438,9 @@ sub get_template_and_user {
                 some_public_shelves  => $some_public_shelves,
             );
         }
+
+        # Set default branch if one has been passed by the environment.
+        $template->param( branchcode => $ENV{OPAC_BRANCH_DEFAULT} ) if $ENV{OPAC_BRANCH_DEFAULT};
     }
 
     # Sysprefs disabled via URL param
diff --git a/Koha/Middleware/SetEnv.pm b/Koha/Middleware/SetEnv.pm
index 6807392c1a..27c91b6b05 100644
--- a/Koha/Middleware/SetEnv.pm
+++ b/Koha/Middleware/SetEnv.pm
@@ -66,6 +66,7 @@ name.
 my $allowed_setenvs = qr/^(
     OVERRIDE_SYSPREF_(\w+) |
     OVERRIDE_SYSPREF_NAMES |
+    OPAC_BRANCH_DEFAULT |
     OPAC_CSS_OVERRIDE |
     OPAC_SEARCH_LIMIT |
     OPAC_LIMIT_OVERRIDE |
-- 
2.20.1