210 lines
8.4 KiB
PHP
210 lines
8.4 KiB
PHP
<?php
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/* ------------------------------------------------------------------------------------
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* Goosle - The fast, privacy oriented search tool that just works.
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*
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* COPYRIGHT NOTICE
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* Copyright 2023-2024 Arnan de Gans. All Rights Reserved.
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*
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* COPYRIGHT NOTICES AND ALL THE COMMENTS SHOULD REMAIN INTACT.
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* By using this code you agree to indemnify Arnan de Gans from any
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* liability that might arise from its use.
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------------------------------------------------------------------------------------ */
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class ImageSearch extends EngineRequest {
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protected $requests;
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public function __construct($search, $opts, $mh) {
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$this->requests = array();
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if($opts->enable_image_search == 'on') {
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if($opts->image['yahooimages'] == 'on') {
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require ABSPATH.'engines/image/yahoo-images.php';
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$this->requests[] = new YahooImageRequest($search, $opts, $mh);
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}
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if($opts->image['qwantimages'] == 'on') {
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require ABSPATH.'engines/image/qwant-images.php';
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$this->requests[] = new QwantImageRequest($search, $opts, $mh);
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}
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if($opts->image['pixabay'] == 'on') {
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require ABSPATH.'engines/image/pixabay.php';
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$this->requests[] = new PixabayRequest($search, $opts, $mh);
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}
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if($opts->image['openverse'] == 'on') {
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require ABSPATH.'engines/image/openverse.php';
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$this->requests[] = new OpenverseRequest($search, $opts, $mh);
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}
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}
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}
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public function parse_results($response) {
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$goosle_results = array();
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if(count($this->requests) !== 0) {
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foreach($this->requests as $request) {
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if($request->request_successful()) {
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$engine_result = $request->get_results();
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if(!empty($engine_result)) {
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if(isset($engine_result['did_you_mean'])) {
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$goosle_results['did_you_mean'] = $engine_result['did_you_mean'];
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}
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if(isset($engine_result['search_specific'])) {
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$goosle_results['search_specific'][] = $engine_result['search_specific'];
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}
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if(isset($engine_result['search'])) {
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$how_many_results = 0;
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// Merge duplicates and apply relevance scoring
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foreach($engine_result['search'] as $key => $result) {
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if(isset($goosle_results['search'])) {
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$result_urls = array_column($goosle_results['search'], 'image_full', 'id');
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$found_id = array_search($result['image_full'], $result_urls); // Return the result ID, or false if not found
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} else {
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$found_id = false;
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}
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$how_many_results++;
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$social_media_multiplier = (detect_social_media($result['url'])) ? ($request->opts->social_media_relevance / 10) : 1;
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$goosle_rank = floor($result['engine_rank'] * $social_media_multiplier);
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if($found_id !== false) {
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// Duplicate result from another engine
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$goosle_results['search'][$found_id]['goosle_rank'] += $goosle_rank;
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$goosle_results['search'][$found_id]['combo_source'][] = $engine_result['source'];
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} else {
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// First find, rank and add to results
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$match_rank = match_count($result['tags'], $request->search->query_terms, 2);
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// $match_rank += match_count($result['alt'], $request->search->query_terms);
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$match_rank += match_count($result['url'], $request->search->query_terms, 0.5);
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$result['goosle_rank'] = $goosle_rank + $match_rank;
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$result['combo_source'][] = $engine_result['source'];
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$result['id'] = md5($result['image_full']);
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// Add result to final results
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$goosle_results['search'][$result['id']] = $result;
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}
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unset($result, $result_urls, $found_id, $social_media_multiplier, $goosle_rank, $match_rank);
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}
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// Count results per source
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$goosle_results['sources'][$engine_result['source']] = $how_many_results;
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unset($how_many_results);
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}
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}
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} else {
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$request_result = curl_getinfo($request->ch);
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$http_code_info = ($request_result['http_code'] > 200 && $request_result['http_code'] < 600) ? " - <a href=\"https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/".$request_result['http_code']."\" target=\"_blank\">What's this</a>?" : '';
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$github_issue_url = "https://github.com/adegans/Goosle/discussions/new?category=general&".http_build_query(array('title' => get_class($request)." failed with error ".$request_result['http_code'], 'body' => "```\nEngine: ".get_class($request)."\nError Code: ".$request_result['http_code']."\nRequest url: ".$request_result['url']."\n```", 'labels' => 'request-error'));
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$goosle_results['error'][] = array(
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'message' => "<strong>Ohno! A search query ran into some trouble.</strong> Usually you can try again in a few seconds to get a result!<br /><strong>Engine:</strong> ".get_class($request)."<br /><strong>Error code:</strong> ".$request_result['http_code'].$http_code_info."<br /><strong>Request url:</strong> ".$request_result['url']."<br /><strong>Need help?</strong> Find <a href=\"https://github.com/adegans/Goosle/discussions\" target=\"_blank\">similar issues</a>, or <a href=\"".$github_issue_url."\" target=\"_blank\">ask your own question</a>."
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);
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}
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unset($request);
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}
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if(array_key_exists('search', $goosle_results)) {
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// Re-order results based on rank
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$keys = array_column($goosle_results['search'], 'goosle_rank');
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array_multisort($keys, SORT_DESC, $goosle_results['search']);
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// Count all results
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$goosle_results['number_of_results'] = count($goosle_results['search']);
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unset($keys);
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} else {
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// Add error if there are no search results
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$goosle_results['error'][] = array(
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"message" => "No results found. Please try with more specific or different keywords!"
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);
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}
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} else {
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$goosle_results['error'][] = array(
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'message' => "It appears that all Image Search engines are disabled or that searching for images is disabled."
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);
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}
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return $goosle_results;
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}
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public static function print_results($goosle_results, $search, $opts) {
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// Uncomment for debugging
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/*
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echo "<pre>Settings: ";
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print_r($opts);
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echo "</pre>";
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echo "<pre>Search data: ";
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print_r($search);
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echo "</pre>";
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echo "<pre>Search results: ";
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print_r($goosle_results);
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echo "</pre>";
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*/
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if(array_key_exists('search', $goosle_results)) {
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// Pagination offset
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if($opts->cache_type !== 'off') {
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$offset = ((($search->page - 1) * $opts->search_results_per_page));
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$goosle_results['search'] = array_slice($goosle_results['search'], $offset, $opts->search_results_per_page);
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}
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echo "<ul>";
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// Elapsed time and search sources
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echo "<li class=\"meta\">";
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echo " <p class=\"timer\">Fetched ".$goosle_results['number_of_results']." results in ".$goosle_results['time']." seconds.</p>";
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if($opts->show_search_source == 'on') {
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echo " <p class=\"sources\">".search_sources($goosle_results['sources'])."</p>";
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}
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echo "</li>";
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echo "</ul>";
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// Search results
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echo "<ul class=\"result-grid\">";
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foreach($goosle_results['search'] as $result) {
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// Put result together
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echo "<li class=\"result image rank-".$result['goosle_rank']." id-".$result['id']."\">";
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echo " <div class=\"thumb\">";
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echo " <a href=\"".$result['url']."\" target=\"_blank\" title=\"".$result['alt']."\"><img src=\"".$result['image_thumb']."\" alt=\"".$result['alt']."\" /></a>";
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echo " </div>";
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echo " <div class=\"meta\">";
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if(!empty($result['height']) && !empty($result['width'])) echo " <p>".$result['width']."×".$result['height']."</p>";
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echo " <p><a href=\"".$result['url']."\" target=\"_blank\" title=\"Open website\">Website</a> • <a href=\"".$result['image_full']."\" target=\"_blank\" title=\"Open image\">Image</a></p>";
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if($opts->show_search_rank == 'on') echo " <p>Rank: ".$result['goosle_rank']."</p>";
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echo " </div>";
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echo "</li>";
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unset($meta);
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}
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echo "</ul>";
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// Pagination navigation
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if($opts->cache_type !== 'off' && $goosle_results['number_of_results'] > $opts->search_results_per_page) {
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echo "<p class=\"pagination\">".search_pagination($search, $opts, $goosle_results['number_of_results'])."</p>";
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}
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echo "<p class=\"text-center\"><small>Goosle does not store or distribute image files.</small></p>";
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}
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// No results found
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if(array_key_exists("error", $goosle_results)) {
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foreach($goosle_results['error'] as $error) {
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echo "<div class=\"error\">".$error['message']."</div>";
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}
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}
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unset($goosle_results);
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}
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}
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?>
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