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Koha/C4/Templates.pm
Jonathan Druart da36fd4429 Bug 20480: send KOHA_VERSION even if only one language is enabled 
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
2018-03-27 13:38:57 -03:00

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Perl
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package C4::Templates;
use strict;
use warnings;
use Carp;
use CGI qw ( -utf8 );
use List::MoreUtils qw/ any uniq /;
# Copyright 2009 Chris Cormack and The Koha Dev Team
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
=head1 NAME
C4::Templates - Object for manipulating templates for use with Koha
=cut
use base qw(Class::Accessor);
use Template;
use Template::Constants qw( :debug );
use C4::Languages qw(getTranslatedLanguages get_bidi regex_lang_subtags language_get_description accept_language );
use C4::Context;
use Koha::Cache::Memory::Lite;
use Koha::Exceptions;
__PACKAGE__->mk_accessors(qw( theme activethemes preferredtheme lang filename htdocs interface vars));
sub new {
my $class = shift;
my $interface = shift;
my $filename = shift;
my $tmplbase = shift;
my $query = @_? shift: undef;
my $htdocs;
if ( $interface ne "intranet" ) {
$htdocs = C4::Context->config('opachtdocs');
}
else {
$htdocs = C4::Context->config('intrahtdocs');
}
my ($theme, $lang, $activethemes)= themelanguage( $htdocs, $tmplbase, $interface, $query);
my @includes;
foreach (@$activethemes) {
push @includes, "$htdocs/$_/$lang/includes";
push @includes, "$htdocs/$_/en/includes" unless $lang eq 'en';
}
# Do not use template cache if script is called from commandline
my $use_template_cache = C4::Context->config('template_cache_dir') && defined $ENV{GATEWAY_INTERFACE};
my $template = Template->new(
{ EVAL_PERL => 1,
ABSOLUTE => 1,
PLUGIN_BASE => 'Koha::Template::Plugin',
COMPILE_EXT => $use_template_cache ? '.ttc' : '',
COMPILE_DIR => $use_template_cache ? C4::Context->config('template_cache_dir') : '',
INCLUDE_PATH => \@includes,
FILTERS => {},
ENCODING => 'UTF-8',
}
) or die Template->error();
my $self = {
TEMPLATE => $template,
VARS => {},
};
bless $self, $class;
$self->theme($theme);
$self->lang($lang);
$self->activethemes($activethemes);
$self->preferredtheme($activethemes->[0]);
$self->filename($filename);
$self->htdocs($htdocs);
$self->interface($interface);
$self->{VARS}->{"test"} = "value";
return $self;
}
sub output {
my $self = shift;
my $vars = shift;
# my $file = $self->htdocs . '/' . $self->theme .'/'.$self->lang.'/'.$self->filename;
my $template = $self->{TEMPLATE};
if ( $self->interface eq 'intranet' ) {
$vars->{themelang} = '/intranet-tmpl';
}
else {
$vars->{themelang} = '/opac-tmpl';
}
$vars->{lang} = $self->lang;
$vars->{themelang} .= '/' . $self->preferredtheme . '/' . $self->lang;
$vars->{interface} =
( $self->{interface} ne 'intranet' ? '/opac-tmpl' : '/intranet-tmpl' );
$vars->{theme} = $self->theme;
$vars->{OpacAdditionalStylesheet} =
C4::Context->preference('OpacAdditionalStylesheet');
$vars->{opaclayoutstylesheet} =
C4::Context->preference('opaclayoutstylesheet');
# add variables set via param to $vars for processing
$vars = { %$vars, %{ $self->{VARS} } };
my $data;
binmode( STDOUT, ":utf8" );
$template->process( $self->filename, $vars, \$data )
|| die "Template process failed: ", $template->error();
return $data;
}
# wrapper method to allow easier transition from HTML template pro to Template Toolkit
sub param {
my $self = shift;
while (@_) {
my $key = shift;
my $val = shift;
if ( ref($val) eq 'ARRAY' && !scalar @$val ) { $val = undef; }
elsif ( ref($val) eq 'HASH' && !scalar %$val ) { $val = undef; }
if ( $key ) {
$self->{VARS}->{$key} = $val;
} else {
warn "Problem = a value of $val has been passed to param without key";
}
}
}
=head1 NAME
C4::Templates - Functions for managing templates
=head1 FUNCTIONS
=cut
# FIXME: this is a quick fix to stop rc1 installing broken
# Still trying to figure out the correct fix.
my $path = C4::Context->config('intrahtdocs') . "/prog/en/includes/";
#---------------------------------------------------------------------------------------------------------
# FIXME - POD
sub _get_template_file {
my ($tmplbase, $interface, $query) = @_;
my $is_intranet = $interface eq 'intranet';
my $htdocs = C4::Context->config($is_intranet ? 'intrahtdocs' : 'opachtdocs');
my ($theme, $lang, $availablethemes) = themelanguage($htdocs, $tmplbase, $interface, $query);
$lang //= 'en';
$theme //= '';
$tmplbase = "$htdocs/$theme/$lang/modules/$tmplbase" if $tmplbase !~ /^\//;
# do not prefix an absolute path
return ( $htdocs, $theme, $lang, $tmplbase );
}
=head2 badtemplatecheck
badtemplatecheck( $template_path );
The sub will throw an exception if the template path is not allowed.
Note: At this moment the sub is actually a helper routine for
sub gettemplate.
=cut
sub badtemplatecheck {
my ( $template ) = @_;
if( !$template || $template !~ m/^[a-zA-Z0-9_\-\/]+\.(tt|pref)$/ ) {
# This also includes two dots
Koha::Exceptions::NoPermission->throw( 'bad template path' );
} else {
# Check allowed dirs
my $dirs = C4::Context->config("pluginsdir");
$dirs = [ $dirs ] if !ref($dirs);
unshift @$dirs, C4::Context->config('opachtdocs'), C4::Context->config('intrahtdocs');
my $found = 0;
foreach my $dir ( @$dirs ) {
$dir .= '/' if $dir !~ m/\/$/;
$found++ if $template =~ m/^$dir/;
last if $found;
}
Koha::Exceptions::NoPermission->throw( 'bad template path' ) if !$found;
}
}
sub gettemplate {
my ( $tmplbase, $interface, $query ) = @_;
($query) or warn "no query in gettemplate";
my ($htdocs, $theme, $lang, $filename)
= _get_template_file($tmplbase, $interface, $query);
badtemplatecheck( $filename ); # single trip for bad templates
my $template = C4::Templates->new($interface, $filename, $tmplbase, $query);
# NOTE: Commenting these out rather than deleting them so that those who need
# to know how we previously shimmed these directories will be able to understand.
# my $is_intranet = $interface eq 'intranet';
# my $themelang =
# ($is_intranet ? '/intranet-tmpl' : '/opac-tmpl') .
# "/$theme/$lang";
# $template->param(
# themelang => $themelang,
# interface => $is_intranet ? '/intranet-tmpl' : '/opac-tmpl',
# theme => $theme,
# lang => $lang
# );
# Bidirectionality, must be sent even if is the only language
my $current_lang = regex_lang_subtags($lang);
my $bidi;
$bidi = get_bidi($current_lang->{script}) if $current_lang->{script};
$template->param(
bidi => $bidi,
);
# Languages
my $languages_loop = getTranslatedLanguages($interface,$theme,$lang);
my $num_languages_enabled = 0;
foreach my $lang (@$languages_loop) {
foreach my $sublang (@{ $lang->{'sublanguages_loop'} }) {
$num_languages_enabled++ if $sublang->{enabled};
}
}
my $one_language_enabled = ($num_languages_enabled <= 1) ? 1 : 0; # deal with zero enabled langs as well
$template->param(
languages_loop => $languages_loop,
one_language_enabled => $one_language_enabled,
) unless $one_language_enabled;
$template->param(
KOHA_VERSION => C4::Context->preference('Version')
);
return $template;
}
=head2 themelanguage
my ($theme,$lang,\@themes) = themelanguage($htdocs,$tmpl,$interface,query);
This function returns the theme and language to be used for rendering the UI.
It also returns the list of themes that should be applied as a fallback. This is
used for the theme overlay feature (i.e. if a file doesn't exist on the requested
theme, fallback to the configured fallback).
Important: this function is used on the webinstaller too, so always consider
the use case where the DB is not populated already when rewriting/fixing.
=cut
sub themelanguage {
my ($htdocs, $tmpl, $interface, $query) = @_;
($query) or warn "no query in themelanguage";
# Select a language based on cookie, syspref available languages & browser
my $lang = C4::Languages::getlanguage($query);
# Get theme
my @themes;
my $theme_syspref = ($interface eq 'intranet') ? 'template' : 'opacthemes';
my $fallback_syspref = ($interface eq 'intranet') ? 'template' : 'OPACFallback';
# Yeah, hardcoded, last resort if the DB is not populated
my $hardcoded_theme = ($interface eq 'intranet') ? 'prog' : 'bootstrap';
# Configured theme is the first one
push @themes, C4::Context->preference( $theme_syspref )
if C4::Context->preference( $theme_syspref );
# Configured fallback next
push @themes, C4::Context->preference( $fallback_syspref )
if C4::Context->preference( $fallback_syspref );
# The hardcoded fallback theme is the last one
push @themes, $hardcoded_theme;
# Try to find first theme for the selected theme/lang, then for fallback/lang
my $where = $tmpl =~ /xsl$/ ? 'xslt' : 'modules';
for my $theme (@themes) {
if ( -e "$htdocs/$theme/$lang/$where/$tmpl" ) {
return ( $theme, $lang, [ uniq(@themes) ] );
}
}
# Otherwise return theme/'en', last resort fallback/'en'
for my $theme (@themes) {
if ( -e "$htdocs/$theme/en/$where/$tmpl" ) {
return ( $theme, 'en', [ uniq(@themes) ] );
}
}
# tmpl is a full path, so this is a template for a plugin
if ( $tmpl =~ /^\// && -e $tmpl ) {
return ( $themes[0], $lang, [ uniq(@themes) ] );
}
}
sub setlanguagecookie {
my ( $query, $language, $uri ) = @_;
my $cookie = getlanguagecookie( $query, $language );
# We do not want to set getlanguage in cache, some additional checks are
# done in C4::Languages::getlanguage
Koha::Cache::Memory::Lite->get_instance()->clear_from_cache( 'getlanguage' );
print $query->redirect(
-uri => $uri,
-cookie => $cookie
);
}
=head2 getlanguagecookie
my $cookie = getlanguagecookie($query,$language);
Returns a cookie object containing the calculated language to be used.
=cut
sub getlanguagecookie {
my ( $query, $language ) = @_;
my $cookie = $query->cookie(
-name => 'KohaOpacLanguage',
-value => $language,
-HttpOnly => 1,
-expires => '+3y'
);
return $cookie;
}
=head2 GetColumnDefs
my $columns = GetColumnDefs( $cgi )
It is passed a CGI object and returns a hash of hashes containing
the column names and descriptions for each table defined in the
columns.def file corresponding to the CGI object.
=cut
sub GetColumnDefs {
my $query = shift;
my $columns = {};
my $htdocs = C4::Context->config('intrahtdocs');
my $columns_file = 'columns.def';
# Get theme and language to build the path to columns.def
my ($theme, $lang, $availablethemes) =
themelanguage($htdocs, 'about.tt', 'intranet', $query);
# Build columns.def path
my $path = "$htdocs/$theme/$lang/$columns_file";
my $fh;
if ( ! open ( $fh, q{<:encoding(utf-8)}, $path ) ) {
carp "Error opening $path. Check your templates.";
return;
}
# Loop through the columns.def file
while ( my $input = <$fh> ){
chomp $input;
if ( $input =~ m|<field name="(.*)">(.*)</field>| ) {
my ( $table, $column ) = split( '\.', $1);
my $description = $2;
# Initialize the table array if needed.
@{$columns->{ $table }} = () if ! defined $columns->{ $table };
# Push field and description
push @{$columns->{ $table }},
{ field => $column, description => $description };
}
}
close $fh;
return $columns;
}
1;
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