wiki-grav/plugins/tntsearch/tntsearch.php

524 lines
16 KiB
PHP

<?php
namespace Grav\Plugin;
use Composer\Autoload\ClassLoader;
use Grav\Common\Grav;
use Grav\Common\Language\Language;
use Grav\Common\Page\Page;
use Grav\Common\Page\Pages;
use Grav\Common\Plugin;
use Grav\Common\Scheduler\Scheduler;
use Grav\Common\Uri;
use Grav\Plugin\TNTSearch\GravTNTSearch;
use RocketTheme\Toolbox\Event\Event;
use TeamTNT\TNTSearch\Exceptions\IndexNotFoundException;
/**
* Class TNTSearchPlugin
* @package Grav\Plugin
*/
class TNTSearchPlugin extends Plugin
{
/** @var array|object|string */
protected $results = [];
/** @var string */
protected $query;
/** @var bool */
protected $built_in_search_page;
/** @var string */
protected $query_route;
/** @var string */
protected $search_route;
/** @var string */
protected $current_route;
/** @var string */
protected $admin_route;
/**
* @return array
*
* The getSubscribedEvents() gives the core a list of events
* that the plugin wants to listen to. The key of each
* array section is the event that the plugin listens to
* and the value (in the form of an array) contains the
* callable (or function) as well as the priority. The
* higher the number the higher the priority.
*/
public static function getSubscribedEvents(): array
{
return [
'onPluginsInitialized' => [
['autoload', 100000],
['onPluginsInitialized', 0]
],
'onSchedulerInitialized' => ['onSchedulerInitialized', 0],
'onTwigLoader' => ['onTwigLoader', 0],
'onTNTSearchReIndex' => ['onTNTSearchReIndex', 0],
'onTNTSearchIndex' => ['onTNTSearchIndex', 0],
'onTNTSearchQuery' => ['onTNTSearchQuery', 0],
];
}
/**
* [onPluginsInitialized:100000] Composer autoload.
*is
* @return ClassLoader
*/
public function autoload(): ClassLoader
{
return require __DIR__ . '/vendor/autoload.php';
}
/**
* Initialize the plugin
*/
public function onPluginsInitialized(): void
{
if ($this->isAdmin()) {
$this->GravTNTSearch();
$route = $this->config->get('plugins.admin.route');
$base = '/' . trim($route, '/');
$this->admin_route = $this->grav['base_url'] . $base;
$this->enable([
'onAdminMenu' => ['onAdminMenu', 0],
'onAdminTaskExecute' => ['onAdminTaskExecute', 0],
'onTwigSiteVariables' => ['onTwigAdminVariables', 0],
'onTwigLoader' => ['addAdminTwigTemplates', 0],
]);
if ($this->config->get('plugins.tntsearch.enable_admin_page_events', true)) {
$this->enable([
'onAdminAfterSave' => ['onObjectSave', 0],
'onAdminAfterDelete' => ['onObjectDelete', 0],
'onFlexObjectSave' => ['onObjectSave', 0],
'onFlexObjectDelete' => ['onObjectDelete', 0],
]);
}
return;
}
$this->enable([
'onPagesInitialized' => ['onPagesInitialized', 1000],
'onTwigSiteVariables' => ['onTwigSiteVariables', 0],
]);
}
/**
* Add index job to Grav Scheduler
* Requires Grav 1.6.0 - Scheduler
*/
public function onSchedulerInitialized(Event $e): void
{
if ($this->config->get('plugins.tntsearch.scheduled_index.enabled')) {
/** @var Scheduler $scheduler */
$scheduler = $e['scheduler'];
$at = $this->config->get('plugins.tntsearch.scheduled_index.at');
$logs = $this->config->get('plugins.tntsearch.scheduled_index.logs');
$job = $scheduler->addCommand('bin/plugin', ['tntsearch', 'index'], 'tntsearch-index');
$job->at($at);
$job->output($logs);
$job->backlink('/plugins/tntsearch');
}
}
/**
* Function to force a reindex from your own plugins
*/
public function onTNTSearchReIndex(): void
{
$this->GravTNTSearch()->createIndex();
}
/**
* A sample event to show how easy it is to extend the indexing fields
*
* @param Event $e
*/
public function onTNTSearchIndex(Event $e): void
{
$page = $e['page'];
$fields = $e['fields'];
if ($page && $page instanceof Page && isset($page->header()->author)) {
$author = $page->header()->author;
if (is_string($author)) {
$fields->author = $author;
}
}
}
public function onTNTSearchQuery(Event $e): void
{
$page = $e['page'];
$query = $e['query'];
$options = $e['options'];
$fields = $e['fields'];
$gtnt = $e['gtnt'];
$content = $gtnt->getCleanContent($page);
$title = $page->title();
$relevant = $gtnt->tnt->snippet($query, $content, $options['snippet']);
if (strlen($relevant) <= 6) {
$relevant = substr($content, 0, $options['snippet']);
}
$fields->hits[] = [
'link' => $page->route(),
'title' => $gtnt->tnt->highlight($title, $query, 'em', ['wholeWord' => false]),
'content' => $gtnt->tnt->highlight($relevant, $query, 'em', ['wholeWord' => false]),
];
}
/**
* Create pages and perform the search actions
*/
public function onPagesInitialized(): void
{
/** @var Uri $uri */
$uri = $this->grav['uri'];
$options = [];
$this->current_route = $uri->path();
$this->built_in_search_page = $this->config->get('plugins.tntsearch.built_in_search_page');
$this->search_route = $this->config->get('plugins.tntsearch.search_route');
$this->query_route = $this->config->get('plugins.tntsearch.query_route');
$pages = $this->grav['pages'];
$page = $pages->dispatch($this->current_route);
if (!$page) {
if ($this->query_route && $this->query_route === $this->current_route) {
$page = new Page;
$page->init(new \SplFileInfo(__DIR__ . '/pages/tntquery.md'));
$page->slug(basename($this->current_route));
if ($uri->param('ajax') || $uri->query('ajax')) {
$page->template('tntquery-ajax');
}
$pages->addPage($page, $this->current_route);
} elseif ($this->built_in_search_page && $this->search_route == $this->current_route) {
$page = new Page;
$page->init(new \SplFileInfo(__DIR__ . '/pages/search.md'));
$page->slug(basename($this->current_route));
$pages->addPage($page, $this->current_route);
}
}
$this->query = (string)($uri->param('q', null) ?: $uri->query('q') ?: '');
if ($this->query) {
$snippet = $this->getFormValue('sl');
$limit = $this->getFormValue('l');
if ($snippet) {
$options['snippet'] = $snippet;
}
if ($limit) {
$options['limit'] = $limit;
}
$this->grav['tntsearch'] = static::getSearchObjectType($options);
if ($page) {
$this->config->set('plugins.tntsearch', $this->mergeConfig($page));
}
try {
$this->results = $this->GravTNTSearch()->search($this->query);
} catch (IndexNotFoundException $e) {
$this->results = ['number_of_hits' => 0, 'hits' => [], 'execution_time' => 'missing index'];
}
}
}
/**
* Add the Twig template paths to the Twig laoder
*/
public function onTwigLoader(): void
{
$this->grav['twig']->addPath(__DIR__ . '/templates');
}
/**
* Add the current template paths to the admin Twig loader
*/
public function addAdminTwigTemplates(): void
{
$this->grav['twig']->addPath($this->grav['locator']->findResource('theme://templates'));
}
/**
* Add results and query to Twig as well as CSS/JS assets
*/
public function onTwigSiteVariables(): void
{
$twig = $this->grav['twig'];
if ($this->query) {
$twig->twig_vars['query'] = $this->query;
$twig->twig_vars['tntsearch_results'] = $this->results;
}
if ($this->config->get('plugins.tntsearch.built_in_css')) {
$this->grav['assets']->addCss('plugin://tntsearch/assets/tntsearch.css');
}
if ($this->config->get('plugins.tntsearch.built_in_js')) {
// $this->grav['assets']->addJs('plugin://tntsearch/assets/tntsearch.js');
$this->grav['assets']->addJs('plugin://tntsearch/assets/tntsearch.js');
}
}
/**
* Handle the Reindex task from the admin
*
* @param Event $e
*/
public function onAdminTaskExecute(Event $e): void
{
if ($e['method'] === 'taskReindexTNTSearch') {
$controller = $e['controller'];
header('Content-type: application/json');
if (!$controller->authorizeTask('reindexTNTSearch', ['admin.configuration', 'admin.super'])) {
$json_response = [
'status' => 'error',
'message' => '<i class="fa fa-warning"></i> Index not created',
'details' => 'Insufficient permissions to reindex the search engine database.'
];
echo json_encode($json_response);
exit;
}
// disable warnings
error_reporting(1);
// disable execution time
set_time_limit(0);
list($status, $msg, $output) = static::indexJob();
$json_response = [
'status' => $status ? 'success' : 'error',
'message' => $msg
];
echo json_encode($json_response);
exit;
}
}
/**
* Perform an 'add' or 'update' for index data as needed
*
* @param Event $event
* @return bool
*/
public function onObjectSave($event): bool
{
if (defined('CLI_DISABLE_TNTSEARCH')) {
return true;
}
$obj = $event['object'] ?: $event['page'];
if ($obj) {
$this->GravTNTSearch()->updateIndex($obj);
}
return true;
}
/**
* Perform a 'delete' for index data as needed
*
* @param Event $event
* @return bool
*/
public function onObjectDelete($event): bool
{
if (defined('CLI_DISABLE_TNTSEARCH')) {
return true;
}
$obj = $event['object'] ?: $event['page'];
if ($obj) {
$this->GravTNTSearch()->deleteIndex($obj);
}
return true;
}
/**
* Set some twig vars and load CSS/JS assets for admin
*/
public function onTwigAdminVariables(): void
{
$twig = $this->grav['twig'];
$gtnt = $this->GravTNTSearch();
[$status, $msg] = static::getIndexCount($gtnt);
if ($status === false) {
$message = '<i class="fa fa-binoculars"></i> <a href="/'. trim($this->admin_route, '/') . '/plugins/tntsearch">TNTSearch must be indexed before it will function properly.</a>';
$this->grav['admin']->addTempMessage($message, 'error');
}
$twig->twig_vars['tntsearch_index_status'] = ['status' => $status, 'msg' => $msg];
$this->grav['assets']->addCss('plugin://tntsearch/assets/admin/tntsearch.css');
$this->grav['assets']->addJs('plugin://tntsearch/assets/admin/tntsearch.js');
}
/**
* Add reindex button to the admin QuickTray
*/
public function onAdminMenu(): void
{
$options = [
'authorize' => 'taskReindexTNTSearch',
'hint' => 'reindexes the TNT Search index',
'class' => 'tntsearch-reindex',
'icon' => 'fa-binoculars'
];
$this->grav['twig']->plugins_quick_tray['TNT Search'] = $options;
}
/**
* Wrapper to get the number of documents currently indexed
*
* @param GravTNTSearch $gtnt
* @return array
*/
protected static function getIndexCount($gtnt): array
{
$status = true;
try {
$msg = '';
$gtnt->selectIndex();
$doc_count = $gtnt->tnt->totalDocumentsInCollection();
$language = Grav::instance()['language'];
if ($language->enabled()) {
$msg .= 'Processed ' . count($language->getLanguages()) . ' languages, each with ';
}
$msg .= $doc_count . ' documents reindexed';
} catch (IndexNotFoundException $e) {
$status = false;
$msg = 'Index not created';
}
return [$status, $msg];
}
/**
* Helper function to read form/url values
*
* @param string $val
* @return mixed
*/
protected function getFormValue($val)
{
$uri = $this->grav['uri'];
return $uri->param($val) ?: $uri->query($val) ?: filter_input(INPUT_POST, $val, FILTER_SANITIZE_ENCODED);
}
/**
* @param array $options
* @return GravTNTSearch
*/
public static function getSearchObjectType($options = [])
{
$type = 'Grav\\Plugin\\TNTSearch\\' . Grav::instance()['config']->get('plugins.tntsearch.search_object_type', 'Grav') . 'TNTSearch';
if (class_exists($type)) {
return new $type($options);
}
throw new \RuntimeException('Search class: ' . $type . ' does not exist');
}
/**
* @param string|null $langCode
* @return array
*/
public static function indexJob(string $langCode = null)
{
$grav = Grav::instance();
$grav['debugger']->enabled(false);
/** @var Pages $pages */
$pages = $grav['pages'];
if (method_exists($pages, 'enablePages')) {
$pages->enablePages();
}
ob_start();
/** @var Language $language */
$language = $grav['language'];
$langEnabled = $language->enabled();
// TODO: can be removed when Grav minimum >= v1.6.22
$hasReset = method_exists($pages, 'reset');
if (!$hasReset && !$langCode) {
$langCode = $language->getActive();
}
if ($langCode && (!$langEnabled || !$language->validate($langCode))) {
$langCode = null;
}
$langCodes = $langCode ? [$langCode] : $language->getLanguages();
if ($langCodes) {
foreach ($langCodes as $lang) {
if ($lang !== $language->getActive()) {
$language->init();
$language->setActive($lang);
// TODO: $hasReset test can be removed (keep reset!) when Grav minimum >= v1.6.22
if ($hasReset) {
$pages->reset();
}
}
echo "\nLanguage: {$lang}\n";
$gtnt = static::getSearchObjectType();
$gtnt->createIndex();
}
} else {
$gtnt = static::getSearchObjectType();
$gtnt->createIndex();
}
$output = ob_get_clean();
// Reset and get index count and status
$gtnt = static::getSearchObjectType();
[$status, $msg] = static::getIndexCount($gtnt);
return [$status, $msg, $output];
}
/**
* Helper to initialize TNTSearch if required
*
* @return GravTNTSearch
*/
protected function GravTNTSearch()
{
if (!isset($this->grav['tntsearch'])) {
$this->grav['tntsearch'] = static::getSearchObjectType();
}
return $this->grav['tntsearch'];
}
}