201 lines
6.1 KiB
PHP
201 lines
6.1 KiB
PHP
<?php
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/**
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* Semantic Action Plugin
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Giuseppe Di Terlizzi <giuseppe.diterlizzi>
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* @copyright (C) 2015, Giuseppe Di Terlizzi
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*/
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// must be run within Dokuwiki
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if(!defined('DOKU_INC')) die();
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/**
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* Class Semantic Action Plugin
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*
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* Add semantic data to DokuWiki
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*/
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class action_plugin_semantic extends DokuWiki_Action_Plugin {
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/**
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* Register events
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*
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* @param Doku_Event_Handler $controller
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*/
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public function register(Doku_Event_Handler $controller) {
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if ($this->getConf('useJSONLD')) {
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$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'json_ld');
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}
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if ($this->getConf('useDescription')) {
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$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_description');
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}
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if ($this->getConf('useMetaAuthor')) {
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$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_author');
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}
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}
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/**
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* JSON-LD Event handler
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*
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* @param Doku_Event &$event
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*/
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public function json_ld(Doku_Event &$event, $param) {
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global $INFO;
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global $ID;
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if ((bool) preg_match_all('/'.$this->getConf('excludedPages').'/', $ID)) {
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return false;
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}
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if ($INFO['perm'] > 0) {
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global $license;
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global $auth;
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global $conf;
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$meta = $INFO['meta'];
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if (isset($meta['semantic']['enabled']) && ! $meta['semantic']['enabled']) {
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return false;
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}
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if (isset($meta['date'])) {
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$type = ((isset($meta['semantic']['schema.org']['type']))
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? $meta['semantic']['schema.org']['type']
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: $this->getConf('defaultSchemaOrgType'));
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$user_data = $auth->getUserData($meta['user']);
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$license_url = $license[$conf['license']]['url'];
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$page_url = wl($ID, '', true);
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$image_url = (($meta['relation']['firstimage']) ? ml($meta['relation']['firstimage'], '', true, '&', true) : null);
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$description = trim(ltrim($meta['description']['abstract'], $meta['title']));
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$created = date(DATE_W3C, $meta['date']['created']);
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$modified = date(DATE_W3C, $meta['date']['modified']);
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$json_ld = array(
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'@context' => 'http://schema.org',
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'@type' => $type,
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'headline' => $meta['title'],
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'name' => $meta['title'],
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'image' => array($image_url),
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'datePublished' => $created,
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'dateCreated' => $created,
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'dateModified' => $modified,
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'description' => $description,
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'license' => $license_url,
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'url' => $page_url,
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);
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if (isset($meta['creator']) && $meta['creator'] !== '') {
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$json_ld['creator'] = array(
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'@context' => 'http://schema.org',
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'@type' => 'Person',
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'name' => $meta['creator'],
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'email' => $user_data['mail']
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);
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foreach ($meta['contributor'] as $uid => $fullname) {
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$contributor_data = $auth->getUserData($uid);
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$json_ld['contributor'][] = array(
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'@context' => 'http://schema.org',
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'@type' => 'Person',
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'name' => $fullname,
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'email' => $contributor_data['mail']
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);
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}
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}
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if (isset($meta['relation']['references'])) {
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$json_ld_webpage = array(
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'@context' => 'http://schema.org',
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'@type' => 'WebPage'
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);
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foreach ($meta['relation']['references'] as $page => $status) {
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if ($status) {
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$json_ld_webpage['relatedLink'][] = wl($page, '', true);
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}
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}
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$event->data["script"][] = array (
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"type" => "application/ld+json",
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"_data" => json_encode($json_ld_webpage),
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);
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}
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$event->data["script"][] = array (
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"type" => "application/ld+json",
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"_data" => json_encode($json_ld),
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);
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}
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}
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}
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public function meta_description(Doku_Event &$event, $params) {
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global $INFO;
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global $ID;
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if ((bool) preg_match_all('/'.$this->getConf('excludedPages').'/', $ID)) {
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return false;
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}
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if ($INFO['perm'] > 0) {
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$meta = $INFO['meta'];
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if ($meta['date'] && $meta['semantic']['enabled']) {
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$description = str_replace("\n", ' ', trim(ltrim($meta['description']['abstract'], $meta['title'])));
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$event->data['meta'][] = array(
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'name' => 'description',
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'content' => $description,
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);
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}
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}
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}
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public function meta_author(Doku_Event &$event, $params) {
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global $INFO;
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global $ID;
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if ((bool) preg_match_all('/'.$this->getConf('excludedPages').'/', $ID)) {
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return false;
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}
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if ($this->getConf('useMetaAuthor') && $INFO['perm'] > 0) {
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if ($meta['date'] && $meta['semantic']['enabled']) {
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$meta = $INFO['meta'];
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$event->data['meta'][] = array(
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'name' => 'author',
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'content' => $meta['creator'],
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);
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}
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}
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}
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}
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