dokuwiki-plugin-semantic/action.php
Giuseppe Di Terlizzi df82d4838f first commit
2015-03-26 00:48:00 +01:00

201 lines
6.1 KiB
PHP

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