Tomas Cohen Arazi
cd2e54f6e1
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 21fd864416)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
364 lines
12 KiB
Perl
364 lines
12 KiB
Perl
package C4::Templates;
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use strict;
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use warnings;
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use Carp qw( carp );
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use CGI qw ( -utf8 );
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use List::MoreUtils qw( uniq );
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# Copyright 2009 Chris Cormack and The Koha Dev Team
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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=head1 NAME
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C4::Templates - Object for manipulating templates for use with Koha
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=cut
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use base qw(Class::Accessor);
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use Template;
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use C4::Languages qw( get_bidi getTranslatedLanguages regex_lang_subtags );
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use C4::Context;
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use Koha::Cache::Memory::Lite;
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use Koha::Exceptions;
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__PACKAGE__->mk_accessors(qw( theme activethemes preferredtheme lang filename htdocs interface vars));
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sub new {
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my $class = shift;
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my $interface = shift;
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my $filename = shift;
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my $tmplbase = shift;
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my $query = @_? shift: undef;
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my $htdocs;
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if ( $interface ne "intranet" ) {
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$htdocs = C4::Context->config('opachtdocs');
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}
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else {
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$htdocs = C4::Context->config('intrahtdocs');
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}
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my ($theme, $lang, $activethemes)= themelanguage( $htdocs, $tmplbase, $interface, $query);
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my @includes;
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foreach (@$activethemes) {
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push @includes, "$htdocs/$_/$lang/includes";
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push @includes, "$htdocs/$_/en/includes" unless $lang eq 'en';
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}
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my @plugins_include_paths = Koha::Plugins->call(
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'template_include_paths',
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{ interface => $interface, lang => $lang }
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);
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push @includes, map { $_ ? @$_ : () } @plugins_include_paths;
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# Do not use template cache if script is called from commandline
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my $use_template_cache = C4::Context->config('template_cache_dir') && defined $ENV{GATEWAY_INTERFACE};
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my $template = Template->new(
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{ EVAL_PERL => 1,
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ABSOLUTE => 1,
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PLUGIN_BASE => 'Koha::Template::Plugin',
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COMPILE_EXT => $use_template_cache ? '.ttc' : '',
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COMPILE_DIR => $use_template_cache ? C4::Context->config('template_cache_dir') : '',
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INCLUDE_PATH => \@includes,
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FILTERS => {},
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ENCODING => 'UTF-8',
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}
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) or die Template->error();
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my $self = {
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TEMPLATE => $template,
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VARS => {},
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};
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bless $self, $class;
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$self->theme($theme);
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$self->lang($lang);
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$self->activethemes($activethemes);
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$self->preferredtheme($activethemes->[0]);
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$self->filename($filename);
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$self->htdocs($htdocs);
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$self->interface($interface);
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$self->{VARS}->{"test"} = "value";
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return $self;
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}
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sub output {
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my $self = shift;
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my $vars = shift;
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# my $file = $self->htdocs . '/' . $self->theme .'/'.$self->lang.'/'.$self->filename;
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my $template = $self->{TEMPLATE};
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if ( $self->interface eq 'intranet' ) {
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$vars->{themelang} = '/intranet-tmpl';
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}
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else {
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$vars->{themelang} = '/opac-tmpl';
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}
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$vars->{lang} = $self->lang;
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$vars->{themelang} .= '/' . $self->preferredtheme . '/' . $self->lang;
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$vars->{interface} =
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( $self->{interface} ne 'intranet' ? '/opac-tmpl' : '/intranet-tmpl' );
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$vars->{theme} = $self->theme;
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$vars->{OpacAdditionalStylesheet} =
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C4::Context->preference('OpacAdditionalStylesheet');
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$vars->{opaclayoutstylesheet} =
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C4::Context->preference('opaclayoutstylesheet');
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if(exists $self->{VARS}{lang}) {
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warn "Preventing \$template->lang='" . ($self->{vars}{lang}//'-undef-')
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. "' to be overwritten by template->{VARS}{lang}='" . ($self->{VARS}{lang}//'-undef-') . "'";
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delete $self->{VARS}{lang};
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}
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# add variables set via param to $vars for processing
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$vars = { %$vars, %{ $self->{VARS} } };
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my $data;
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binmode( STDOUT, ":encoding(UTF-8)" );
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$template->process( $self->filename, $vars, \$data )
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|| die "Template process failed: ", $template->error();
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return $data;
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}
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# wrapper method to allow easier transition from HTML template pro to Template Toolkit
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sub param {
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my $self = shift;
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while (@_) {
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my $key = shift;
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my $val = shift;
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if ( ref($val) eq 'ARRAY' && !scalar @$val ) { $val = undef; }
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elsif ( ref($val) eq 'HASH' && !scalar %$val ) { $val = undef; }
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if ( $key ) {
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$self->{VARS}->{$key} = $val;
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} else {
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warn "Problem = a value of $val has been passed to param without key";
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}
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}
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}
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=head1 NAME
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C4::Templates - Functions for managing templates
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=head1 FUNCTIONS
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=cut
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# FIXME: this is a quick fix to stop rc1 installing broken
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# Still trying to figure out the correct fix.
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my $path = C4::Context->config('intrahtdocs') . "/prog/en/includes/";
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#---------------------------------------------------------------------------------------------------------
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# FIXME - POD
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sub _get_template_file {
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my ($tmplbase, $interface, $query) = @_;
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my $is_intranet = $interface eq 'intranet';
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my $htdocs = C4::Context->config($is_intranet ? 'intrahtdocs' : 'opachtdocs');
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my ($theme, $lang, $availablethemes) = themelanguage($htdocs, $tmplbase, $interface, $query);
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$lang //= 'en';
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$theme //= '';
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$tmplbase = "$htdocs/$theme/$lang/modules/$tmplbase" if $tmplbase !~ /^\//;
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# do not prefix an absolute path
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return ( $htdocs, $theme, $lang, $tmplbase );
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}
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=head2 badtemplatecheck
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badtemplatecheck( $template_path );
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The sub will throw an exception if the template path is not allowed.
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Note: At this moment the sub is actually a helper routine for
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sub gettemplate.
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=cut
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sub badtemplatecheck {
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my ( $template ) = @_;
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if( !$template || $template !~ m/^[a-zA-Z0-9_\-\/]+\.(tt|pref)$/ ) {
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# This also includes two dots
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Koha::Exceptions::NoPermission->throw( 'bad template path' );
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} else {
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# Check allowed dirs - make sure we operate on a copy of the config
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my $dirs = C4::Context->config("pluginsdir");
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if ( !ref($dirs) ) {
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$dirs = [ $dirs ];
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}
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else {
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$dirs = [ @$dirs ];
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}
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unshift @$dirs, C4::Context->config('opachtdocs'), C4::Context->config('intrahtdocs');
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my $found = 0;
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foreach my $dir ( @$dirs ) {
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$dir .= '/' if $dir !~ m/\/$/;
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$found++ if $template =~ m/^$dir/;
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last if $found;
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}
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Koha::Exceptions::NoPermission->throw( 'bad template path' ) if !$found;
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}
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}
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sub gettemplate {
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my ( $tmplbase, $interface, $query ) = @_;
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my ($htdocs, $theme, $lang, $filename)
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= _get_template_file($tmplbase, $interface, $query);
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badtemplatecheck( $filename ); # single trip for bad templates
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my $template = C4::Templates->new($interface, $filename, $tmplbase, $query);
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# NOTE: Commenting these out rather than deleting them so that those who need
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# to know how we previously shimmed these directories will be able to understand.
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# my $is_intranet = $interface eq 'intranet';
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# my $themelang =
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# ($is_intranet ? '/intranet-tmpl' : '/opac-tmpl') .
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# "/$theme/$lang";
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# $template->param(
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# themelang => $themelang,
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# interface => $is_intranet ? '/intranet-tmpl' : '/opac-tmpl',
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# theme => $theme,
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# lang => $lang
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# );
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# Bidirectionality, must be sent even if is the only language
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my $current_lang = regex_lang_subtags($lang);
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my $bidi;
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$bidi = get_bidi($current_lang->{script}) if $current_lang->{script};
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$template->param(
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bidi => $bidi,
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);
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# Languages
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my $languages_loop = getTranslatedLanguages($interface,$theme,$lang);
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my $num_languages_enabled = 0;
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foreach my $lang (@$languages_loop) {
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foreach my $sublang (@{ $lang->{'sublanguages_loop'} }) {
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$num_languages_enabled++ if $sublang->{enabled};
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}
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}
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my $one_language_enabled = ($num_languages_enabled <= 1) ? 1 : 0; # deal with zero enabled langs as well
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$template->param(
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languages_loop => $languages_loop,
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one_language_enabled => $one_language_enabled,
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) unless $one_language_enabled;
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return $template;
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}
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=head2 themelanguage
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my ($theme,$lang,\@themes) = themelanguage($htdocs,$tmpl,$interface,query);
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This function returns the theme and language to be used for rendering the UI.
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It also returns the list of themes that should be applied as a fallback. This is
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used for the theme overlay feature (i.e. if a file doesn't exist on the requested
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theme, fallback to the configured fallback).
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Important: this function is used on the webinstaller too, so always consider
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the use case where the DB is not populated already when rewriting/fixing.
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=cut
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sub themelanguage {
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my ($htdocs, $tmpl, $interface, $query) = @_;
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# Select a language based on cookie, syspref available languages & browser
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my $lang = C4::Languages::getlanguage($query);
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return availablethemes($htdocs, $tmpl, $interface, $lang);
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}
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sub availablethemes {
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my ($htdocs, $tmpl, $interface, $lang) = @_;
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# Get theme
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my @themes;
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my $theme_syspref = ($interface eq 'intranet') ? 'template' : 'opacthemes';
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my $fallback_syspref = ($interface eq 'intranet') ? 'template' : 'OPACFallback';
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# Yeah, hardcoded, last resort if the DB is not populated
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my $hardcoded_theme = ($interface eq 'intranet') ? 'prog' : 'bootstrap';
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# Configured theme is the first one
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push @themes, C4::Context->preference( $theme_syspref )
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if C4::Context->preference( $theme_syspref );
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# Configured fallback next
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push @themes, C4::Context->preference( $fallback_syspref )
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if C4::Context->preference( $fallback_syspref );
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# The hardcoded fallback theme is the last one
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push @themes, $hardcoded_theme;
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# Try to find first theme for the selected theme/lang, then for fallback/lang
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my $where = $tmpl =~ /xsl$/ ? 'xslt' : 'modules';
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for my $theme (@themes) {
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if ( -e "$htdocs/$theme/$lang/$where/$tmpl" ) {
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return ( $theme, $lang, [ uniq(@themes) ] );
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}
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}
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# Otherwise return theme/'en', last resort fallback/'en'
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for my $theme (@themes) {
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if ( -e "$htdocs/$theme/en/$where/$tmpl" ) {
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return ( $theme, 'en', [ uniq(@themes) ] );
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}
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}
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# tmpl is a full path, so this is a template for a plugin
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if ( $tmpl =~ /^\// && -e $tmpl ) {
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return ( $themes[0], $lang, [ uniq(@themes) ] );
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}
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}
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sub setlanguagecookie {
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my ( $query, $language, $uri ) = @_;
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my $cookie = getlanguagecookie( $query, $language );
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# We do not want to set getlanguage in cache, some additional checks are
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# done in C4::Languages::getlanguage
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Koha::Cache::Memory::Lite->get_instance()->clear_from_cache( 'getlanguage' );
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print $query->redirect(
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-uri => $uri,
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-cookie => $cookie
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);
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}
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=head2 getlanguagecookie
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my $cookie = getlanguagecookie($query,$language);
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Returns a cookie object containing the calculated language to be used.
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=cut
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sub getlanguagecookie {
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my ( $query, $language ) = @_;
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my $cookie = $query->cookie(
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-name => 'KohaOpacLanguage',
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-value => $language,
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-HttpOnly => 1,
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-expires => '+3y',
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-sameSite => 'Lax',
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-secure => ( C4::Context->https_enabled() ? 1 : 0 ),
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);
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return $cookie;
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}
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1;
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