From 0ad7e76cb7cebf16310a95377f88047f09b66d24 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Fr=C3=A8re=20S=C3=A9bastien=20Marie?=
 <semarie-koha@latrappe.fr>
Date: Thu, 1 Dec 2011 19:02:11 +0100
Subject: [PATCH] Bug 7282 - invalid language selection
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- ensure that without cookie, language selection is based on browser
  preferences
- refactor function to obtain langugage for stem in search (opac + intranet)

Signed-off-by: Frédéric Demians <f.demians@tamil.fr>

To reproduce the bug:

- Activate en and fr-FR for OPAC
- Clear your browser cookies
- Select your language preference in your browser: fr, fr-fr, en
- Load OPAC main page
- OPAC is displayed in English, rather than French as asked by browser
  preferences

  Apply the patch and test:

  - Clear your browser cookies
  - Load OPAC main page
  - Pages are displayed in French

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
---
 C4/Templates.pm     | 53 ++++++++++++++++++++++++++-------------------
 catalogue/search.pl |  2 +-
 opac/opac-search.pl |  2 +-
 3 files changed, 33 insertions(+), 24 deletions(-)

diff --git a/C4/Templates.pm b/C4/Templates.pm
index 73d94c2399..7585727550 100644
--- a/C4/Templates.pm
+++ b/C4/Templates.pm
@@ -273,21 +273,10 @@ sub themelanguage {
     ($query) or warn "no query in themelanguage";
 
     # Select a language based on cookie, syspref available languages & browser
-    my $is_intranet = $interface eq 'intranet';
-    my @languages = split(",", C4::Context->preference(
-        $is_intranet ? 'language' : 'opaclanguages'));
-    my $lang;
-    $lang = getlanguagecookie($query);
-    unless ($lang) {
-        my $http_accept_language = $ENV{ HTTP_ACCEPT_LANGUAGE };
-        $lang = accept_language( $http_accept_language, 
-            getTranslatedLanguages($interface,'prog') );
-    }
-    # Ignore a lang not selected in sysprefs
-    $lang = undef  unless first { $_ eq $lang } @languages;
-    # Fall back to English if necessary
-    $lang = 'en' unless $lang;
+    my $lang = getlanguage($query, $interface);
 
+    # Select theme
+    my $is_intranet = $interface eq 'intranet';
     my @themes = split(" ", C4::Context->preference(
         $is_intranet ? "template" : "opacthemes" ));
     push @themes, 'prog';
@@ -317,16 +306,36 @@ sub setlanguagecookie {
     );
 }
 
-sub getlanguagecookie {
-    my ($query) = @_;
+
+sub getlanguage {
+    my ($query, $interface) = @_;
+
+    # Select a language based on cookie, syspref available languages & browser
+    my $is_intranet = $interface eq 'intranet';
+    my @languages = split(",", C4::Context->preference(
+        $is_intranet ? 'language' : 'opaclanguages'));
+
     my $lang;
-    if ($query->cookie('KohaOpacLanguage')){
-        $lang = $query->cookie('KohaOpacLanguage') ;
-    }else{
-        $lang = $ENV{HTTP_ACCEPT_LANGUAGE};
-        
+
+    # cookie
+    if ( $query->cookie('KohaOpacLanguage') ) {
+        $lang = $query->cookie('KohaOpacLanguage');
+        $lang =~ s/[^a-zA-Z_-]*//; # sanitize cookie
     }
-    $lang =~ s/[^a-zA-Z_-]*//; #sanitzie
+
+    # HTTP_ACCEPT_LANGUAGE
+    unless ($lang) {
+        my $http_accept_language = $ENV{ HTTP_ACCEPT_LANGUAGE };
+        $lang = accept_language( $http_accept_language,
+            getTranslatedLanguages($interface,'prog') );
+    }
+
+    # Ignore a lang not selected in sysprefs
+    $lang = undef  unless first { $_ eq $lang } @languages;
+
+    # Fall back to English if necessary
+    $lang = 'en' unless $lang;
+
     return $lang;
 }
 
diff --git a/catalogue/search.pl b/catalogue/search.pl
index 907efdbf99..4792f0b1d7 100755
--- a/catalogue/search.pl
+++ b/catalogue/search.pl
@@ -471,7 +471,7 @@ my ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit
 my @results;
 
 ## I. BUILD THE QUERY
-my $lang = C4::Templates::getlanguagecookie($cgi);
+my $lang = C4::Templates::getlanguage($cgi, 'intranet');
 ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type) = buildQuery(\@operators,\@operands,\@indexes,\@limits,\@sort_by,$scan,$lang);
 
 ## parse the query_cgi string and put it into a form suitable for <input>s
diff --git a/opac/opac-search.pl b/opac/opac-search.pl
index 42eb0ecc78..aba23a8164 100755
--- a/opac/opac-search.pl
+++ b/opac/opac-search.pl
@@ -388,7 +388,7 @@ my ($error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_
 my @results;
 
 ## I. BUILD THE QUERY
-my $lang = C4::Templates::getlanguagecookie($cgi);
+my $lang = C4::Templates::getlanguage($cgi, 'opac');
 ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type) = buildQuery(\@operators,\@operands,\@indexes,\@limits,\@sort_by, 0, $lang);
 
 sub _input_cgi_parse ($) { 
-- 
2.39.5