229 lines
6.0 KiB
PHP
229 lines
6.0 KiB
PHP
<?php
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class pluginSearch extends Plugin {
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private $pagesFound = array();
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private $numberOfItems = 0;
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public function init()
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{
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// Fields and default values for the database of this plugin
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$this->dbFields = array(
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'label'=>'Search',
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'wordsToCachePerPage'=>800,
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'showButtonSearch'=>false
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);
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}
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public function form()
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{
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global $L;
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$html = '<div class="alert alert-primary" role="alert">';
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$html .= $this->description();
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$html .= '</div>';
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$html .= '<div>';
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$html .= '<label>'.$L->get('Label').'</label>';
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$html .= '<input name="label" type="text" value="'.$this->getValue('label').'">';
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$html .= '<span class="tip">'.$L->get('This title is almost always used in the sidebar of the site').'</span>';
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$html .= '</div>';
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$html .= '<div>';
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$html .= '<label>'.$L->get('Show button search').'</label>';
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$html .= '<select name="showButtonSearch">';
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$html .= '<option value="true" '.($this->getValue('showButtonSearch')===true?'selected':'').'>'.$L->get('enabled').'</option>';
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$html .= '<option value="false" '.($this->getValue('showButtonSearch')===false?'selected':'').'>'.$L->get('disabled').'</option>';
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$html .= '</select>';
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$html .= '</div>';
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$html .= '<div>';
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return $html;
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}
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// HTML for sidebar
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public function siteSidebar()
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{
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global $L;
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$html = '<div class="plugin plugin-search">';
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$html .= '<h2 class="plugin-label">'.$this->getValue('label').'</h2>';
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$html .= '<div class="plugin-content">';
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$html .= '<input type="text" id="jspluginSearchText" /> ';
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if ($this->getValue('showButtonSearch')) {
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$html .= '<input type="button" value="'.$L->get('Search').'" onClick="pluginSearch()" />';
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}
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$html .= '</div>';
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$html .= '</div>';
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$DOMAIN_BASE = DOMAIN_BASE;
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$html .= <<<EOF
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<script>
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function pluginSearch() {
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var text = document.getElementById("jspluginSearchText").value;
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window.open('$DOMAIN_BASE'+'search/'+text, '_self');
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return false;
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}
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document.getElementById("jspluginSearchText").onkeypress = function(e) {
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if (!e) e = window.event;
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var keyCode = e.keyCode || e.which;
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if (keyCode == '13'){
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pluginSearch();
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return false;
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}
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}
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</script>
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EOF;
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return $html;
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}
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public function install($position=0)
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{
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parent::install($position);
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return $this->createCache();
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}
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// Method called when the user click on button save in the settings of the plugin
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public function post()
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{
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parent::post();
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return $this->createCache();
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}
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public function afterPageCreate()
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{
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$this->createCache();
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}
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public function afterPageModify()
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{
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$this->createCache();
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}
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public function afterPageDelete()
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{
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$this->createCache();
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}
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public function beforeAll()
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{
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// Check if the URL match with the webhook
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$webhook = 'search';
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if ($this->webhook($webhook, false, false)) {
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global $site;
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global $url;
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// Change the whereAmI to avoid load pages in the rule 69.pages
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// This is only for performance propose
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$url->setWhereAmI('search');
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// Get the string to search from the URL
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$stringToSearch = $this->webhook($webhook, true, false);
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$stringToSearch = trim($stringToSearch, '/');
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// Search the string in the cache and get all pages with matches
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$list = $this->search($stringToSearch);
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$this->numberOfItems = count($list);
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// Split the content in pages
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// The first page number is 1, so the real is 0
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$realPageNumber = $url->pageNumber() - 1;
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$itemsPerPage = $site->itemsPerPage();
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$chunks = array_chunk($list, $itemsPerPage);
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if (isset($chunks[$realPageNumber])) {
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$this->pagesFound = $chunks[$realPageNumber];
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}
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}
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}
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public function paginator()
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{
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$webhook = 'search';
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if ($this->webhook($webhook, false, false)) {
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// Get the pre-defined variable from the rule 99.paginator.php
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// Is necessary to change this variable to fit the paginator with the result from the search
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global $numberOfItems;
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$numberOfItems = $this->numberOfItems;
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}
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}
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public function beforeSiteLoad()
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{
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$webhook = 'search';
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if ($this->webhook($webhook, false, false)) {
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global $url;
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global $WHERE_AM_I;
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$WHERE_AM_I = 'search';
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// Get the pre-defined variable from the rule 69.pages.php
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// We change the content to show in the website
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global $content;
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$content = array();
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foreach ($this->pagesFound as $pageKey) {
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try {
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$page = new Page($pageKey);
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array_push($content, $page);
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} catch (Exception $e) {
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// continue
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}
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}
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}
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}
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// Generate the cache file
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// This function is necessary to call it when you create, edit or remove content
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private function createCache()
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{
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// Get all pages published
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global $pages;
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$list = $pages->getList($pageNumber=1, $numberOfItems=-1, $published=true, $static=true, $sticky=true, $draft=false, $scheduled=false);
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$cache = array();
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foreach ($list as $pageKey) {
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$page = buildPage($pageKey);
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// Process content
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$words = $this->getValue('wordsToCachePerPage') * 5; // Asumming avg of characters per word is 5
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$content = $page->content();
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$content = Text::removeHTMLTags($content);
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$content = Text::truncate($content, $words, '');
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// Include the page to the cache
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$cache[$pageKey]['title'] = $page->title();
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$cache[$pageKey]['description'] = $page->description();
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$cache[$pageKey]['content'] = $content;
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}
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// Generate JSON file with the cache
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$json = json_encode($cache);
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return file_put_contents($this->cacheFile(), $json, LOCK_EX);
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}
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// Returns the absolute path of the cache file
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private function cacheFile()
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{
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return $this->workspace().'cache.json';
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}
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// Search text inside the cache
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// Returns an array with the pages keys related to the text
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// The array is sorted by score
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private function search($text)
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{
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// Read the cache file
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$json = file_get_contents($this->cacheFile());
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$cache = json_decode($json, true);
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// Inlcude Fuzz algorithm
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require_once($this->phpPath().'vendors/fuzz.php');
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$fuzz = new Fuzz($cache, 10, 1, true);
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$results = $fuzz->search($text, 3);
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return(array_keys($results));
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}
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}
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