dokuwiki-plugin-semantic/action.php
2020-08-25 12:13:34 +02:00

270 lines
5.9 KiB
PHP

<?php
/**
* Semantic Action Plugin
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Giuseppe Di Terlizzi <giuseppe.diterlizzi@gmail.com>
* @copyright (C) 2015-2020, Giuseppe Di Terlizzi
*/
/**
* Class Semantic Action Plugin
*
* Add semantic data to DokuWiki
*/
class action_plugin_semantic extends DokuWiki_Action_Plugin
{
private $helper = null;
public function __construct()
{
$this->helper = $this->loadHelper('semantic');
}
/**
* Register events
*
* @param Doku_Event_Handler $controller handler
*/
public function register(Doku_Event_Handler $controller)
{
if ($this->getConf('useJSONLD')) {
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'website');
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'json_ld');
}
if ($this->getConf('useMetaDescription')) {
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_description');
}
if ($this->getConf('useMetaAuthor')) {
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_author');
}
if ($this->getConf('useDublinCore')) {
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_dublin_core');
}
if ($this->getConf('useOpenGraph')) {
$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'meta_open_graph');
}
if ($this->getConf('exposeWebService')) {
$controller->register_hook('AJAX_CALL_UNKNOWN', 'BEFORE', $this, 'ajax');
}
$controller->register_hook('DOKUWIKI_STARTED', 'AFTER', $this, 'jsinfo');
}
/**
* Export JSON-JD in $JSONINFO array
*/
public function jsinfo(Doku_Event &$event, $param)
{
global $JSINFO;
$JSINFO['plugin']['semantic'] = array(
'exposeWebService' => $this->getConf('exposeWebService'),
);
}
/**
* Export in JSON-LD format
*
* @param Doku_Event $event handler
* @param array $param
*
* @return string
*/
public function ajax(Doku_Event &$event, $param)
{
if ($event->data !== 'plugin_semantic') {
return false;
}
//no other ajax call handlers needed
$event->stopPropagation();
$event->preventDefault();
global $INPUT;
$export = $INPUT->str('export');
$id = $INPUT->str('id');
if (!$id) {
return false;
}
$this->helper->getMetadata($id);
$json_ld = $this->helper->getJsonLD();
header('Content-Type: application/ld+json');
print json_encode($json_ld);
return true;
}
/**
* Expose JSON-JD WebSite schema
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function website(Doku_Event &$event, $params)
{
$event->data["script"][] = array(
"type" => "application/ld+json",
"_data" => json_encode($this->helper->getWebSite(), JSON_PRETTY_PRINT),
);
}
/**
* JSON-LD Event handler
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function json_ld(Doku_Event &$event, $params)
{
global $ID;
$this->helper->getMetadata($ID);
$json_ld = $this->helper->getJsonLD();
if (!count($json_ld)) {
return false;
}
$event->data["script"][] = array(
"type" => "application/ld+json",
"_data" => json_encode($json_ld, JSON_PRETTY_PRINT),
);
}
/**
* Meta Description handler
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function meta_description(Doku_Event &$event, $params)
{
global $ID;
$this->helper->getMetadata($ID);
if ($description = $this->helper->getDescription()) {
$description = str_replace("\n", ' ', $description);
$event->data['meta'][] = array(
'name' => 'description',
'content' => $description,
);
}
}
/**
* Meta Description handler
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function meta_author(Doku_Event &$event, $params)
{
global $ID;
$this->helper->getMetadata($ID);
if ($author = $this->helper->getAuthor()) {
$event->data['meta'][] = array(
'name' => 'author',
'content' => $author,
);
}
}
/**
* OpenGraph handler
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function meta_open_graph(Doku_Event &$event, $params)
{
global $ID;
$this->helper->getMetadata($ID);
foreach ($this->helper->getOpenGraph() as $property => $content) {
if (!$content) {
continue;
}
$event->data['meta'][] = array(
'property' => $property,
'content' => $content,
);
}
}
/**
* Dublin Core handler
*
* @param Doku_Event $event handler
* @param array $params
*
* @return void
*/
public function meta_dublin_core(Doku_Event &$event, $params)
{
global $ID;
$this->helper->getMetadata($ID);
foreach ($this->helper->getDublinCore() as $name => $content) {
if (!$content) {
continue;
}
$event->data['meta'][] = array(
'name' => $name,
'content' => $content,
);
}
}
}