166 lines
4.4 KiB
Perl
166 lines
4.4 KiB
Perl
# -*- Mode: perl; indent-tabs-mode: nil -*-
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#
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# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Bug Tracking System.
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#
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# The Initial Developer of the Original Code is Netscape Communications
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# Corporation. Portions created by Netscape are
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# Copyright (C) 1998 Netscape Communications Corporation. All
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# Rights Reserved.
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#
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# Contributor(s): Myk Melez <myk@mozilla.org>
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# Zach Lipton <zach@zachlipton.com>
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# Elliotte Martin <everythingsolved.com>
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# Max Kanat-Alexander <mkanat@bugzilla.org>
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package Bugzilla::Template::Plugin::Hook;
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use strict;
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use base qw(Template::Plugin);
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use Bugzilla::Constants;
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use Bugzilla::Install::Util qw(include_languages template_include_path);
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use Bugzilla::Util;
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use Bugzilla::Error;
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use File::Spec;
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sub new {
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my ($class, $context) = @_;
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return bless { _CONTEXT => $context }, $class;
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}
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sub _context { return $_[0]->{_CONTEXT} }
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sub process {
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my ($self, $hook_name, $template) = @_;
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my $context = $self->_context();
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$template ||= $context->stash->get([ 'component', 0, 'name', 0 ]);
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# sanity check:
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if ($template !~ /^[\w\.\/\-_\\]+$/) {
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ThrowCodeError('template_invalid', { name => $template });
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}
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my (undef, $path, $filename) = File::Spec->splitpath($template);
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$path ||= '';
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$filename =~ m/(.+)\.(.+)\.tmpl$/;
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my $template_name = $1;
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my $type = $2;
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# Hooks are named like this:
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my $extension_template = "$path$template_name-$hook_name.$type.tmpl";
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# Get the hooks out of the cache if they exist. Otherwise, read them
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# from the disk.
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my $cache = Bugzilla->request_cache->{template_plugin_hook_cache} ||= {};
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my $lang = Bugzilla->request_cache->{language} || '';
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$cache->{"${lang}__$extension_template"}
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||= $self->_get_hooks($extension_template);
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# process() accepts an arrayref of templates, so we just pass the whole
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# arrayref.
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$context->{bz_in_hook} = 1; # See Bugzilla::Template::Context
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return $context->process($cache->{"${lang}__$extension_template"});
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}
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sub _get_hooks {
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my ($self, $extension_template) = @_;
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my $template_sets = _template_hook_include_path();
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my @hooks;
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foreach my $dir_set (@$template_sets) {
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foreach my $template_dir (@$dir_set) {
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my $file = "$template_dir/hook/$extension_template";
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if (-e $file) {
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my $template = $self->_context->template($file);
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push(@hooks, $template);
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# Don't run the hook for more than one language.
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last;
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}
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}
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}
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return \@hooks;
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}
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sub _template_hook_include_path {
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my $cache = Bugzilla->request_cache;
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my $language = $cache->{language} || '';
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my $cache_key = "template_plugin_hook_include_path_$language";
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$cache->{$cache_key} ||= template_include_path({
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use_languages => Bugzilla->languages,
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only_language => $language,
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hook => 1,
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});
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return $cache->{$cache_key};
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}
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1;
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__END__
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=head1 NAME
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Bugzilla::Template::Plugin::Hook
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=head1 DESCRIPTION
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Template Toolkit plugin to process hooks added into templates by extensions.
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=head1 METHODS
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=over
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=item B<process>
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=over
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=item B<Description>
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Processes hooks added into templates by extensions.
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=item B<Params>
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=over
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=item C<hook_name>
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The unique name of the template hook.
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=item C<template> (optional)
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The path of the calling template.
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This is used as a work around to a bug which causes the path to the hook
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to be incorrect when the hook is called from inside a block.
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Example: If the hook C<lastrow> is added to the template
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F<show-multiple.html.tmpl> and it is desired to force the correct template
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path, the template hook would be:
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[% Hook.process("lastrow", "bug/show-multiple.html.tmpl") %]
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=back
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=item B<Returns>
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Output from processing template extension.
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=back
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=back
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=head1 SEE ALSO
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L<Template::Plugin>
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L<http://wiki.mozilla.org/Bugzilla:Writing_Extensions>
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