608 lines
17 KiB
PHP
608 lines
17 KiB
PHP
<?php
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/**
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* Fetches news from multiple sources and stores them in the database.
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*
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* Supported sources:
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* - RSS / Atom feeds (Google News, PubMed, custom)
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* - NewsAPI.org
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*
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* @since 1.0.0
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*/
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class Peptide_News_Fetcher {
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/**
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* Add custom WP-Cron schedules.
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*
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* @param array $schedules Existing schedules.
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* @return array
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*/
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public function add_custom_cron_schedules( $schedules ) {
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$schedules['every_fifteen_minutes'] = array(
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'interval' => 900,
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'display' => __( 'Every 15 Minutes', 'peptide-news' ),
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);
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$schedules['every_thirty_minutes'] = array(
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'interval' => 1800,
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'display' => __( 'Every 30 Minutes', 'peptide-news' ),
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);
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$schedules['every_four_hours'] = array(
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'interval' => 14400,
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'display' => __( 'Every 4 Hours', 'peptide-news' ),
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);
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$schedules['every_six_hours'] = array(
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'interval' => 21600,
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'display' => __( 'Every 6 Hours', 'peptide-news' ),
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);
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return $schedules;
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}
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/**
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* Master fetch method — called by WP-Cron.
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* Uses a transient lock to prevent concurrent executions.
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*/
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public function fetch_all_sources() {
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// Prevent overlapping fetch jobs.
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$lock_key = 'peptide_news_fetch_lock';
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if ( get_transient( $lock_key ) ) {
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Peptide_News_Logger::warning( 'Fetch already in progress — skipping this cycle.', 'fetch' );
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return;
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}
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set_transient( $lock_key, true, 300 ); // 5-minute lock.
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Peptide_News_Logger::info( 'Fetch cycle started.', 'fetch' );
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$articles = array();
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// Fetch from RSS feeds.
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if ( get_option( 'peptide_news_rss_enabled', 1 ) ) {
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$rss_articles = $this->fetch_rss_feeds();
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$articles = array_merge( $articles, $rss_articles );
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}
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// Fetch from NewsAPI.
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if ( get_option( 'peptide_news_newsapi_enabled', 0 ) ) {
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$api_key = get_option( 'peptide_news_newsapi_key', '' );
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if ( ! empty( $api_key ) ) {
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$newsapi_articles = $this->fetch_newsapi( $api_key );
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$articles = array_merge( $articles, $newsapi_articles );
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}
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}
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// Filter out ads, press releases, and promotional content.
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$pre_filter_count = count( $articles );
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if ( class_exists( 'Peptide_News_Content_Filter' ) && Peptide_News_Content_Filter::is_enabled() ) {
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$articles = Peptide_News_Content_Filter::filter_articles( $articles );
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}
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$filtered_out = $pre_filter_count - count( $articles );
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// Store articles (deduplication handled by hash).
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$stored = 0;
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foreach ( $articles as $article ) {
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if ( $this->store_article( $article ) ) {
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$stored++;
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}
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}
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// Clear transient caches after storing new articles.
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if ( $stored > 0 ) {
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$this->clear_article_cache();
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// Invalidate REST API caches.
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$this->invalidate_rest_api_cache();
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}
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// Log the fetch result.
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update_option( 'peptide_news_last_fetch', array(
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'time' => current_time( 'mysql' ),
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'found' => $pre_filter_count,
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'filtered_out' => $filtered_out,
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'new_stored' => $stored,
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) );
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Peptide_News_Logger::info( sprintf(
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'Fetch complete: %d found, %d filtered out, %d new stored.',
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$pre_filter_count, $filtered_out, $stored
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), 'fetch' );
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// Run AI analysis on newly fetched articles (keywords + summary).
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if ( class_exists( 'Peptide_News_LLM' ) && Peptide_News_LLM::is_enabled() ) {
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$llm_batch_size = absint( get_option( 'peptide_news_llm_max_articles', 10 ) );
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$llm_processed = Peptide_News_LLM::process_unanalyzed( $llm_batch_size );
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// Append LLM stats to the fetch log.
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$fetch_log = get_option( 'peptide_news_last_fetch' );
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if ( is_array( $fetch_log ) ) {
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$fetch_log['ai_processed'] = $llm_processed;
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update_option( 'peptide_news_last_fetch', $fetch_log );
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}
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}
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// Prune old articles beyond retention period.
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$this->prune_old_articles();
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// Release the fetch lock.
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delete_transient( $lock_key );
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}
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/**
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* Fetch articles from configured RSS feeds.
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*
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* @return array
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*/
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private function fetch_rss_feeds() {
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$feeds_raw = get_option( 'peptide_news_rss_feeds', '' );
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$feeds = array_filter( array_map( 'trim', explode( "\n", $feeds_raw ) ) );
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$articles = array();
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if ( ! function_exists( 'fetch_feed' ) ) {
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require_once ABSPATH . WPINC . '/feed.php';
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}
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foreach ( $feeds as $feed_url ) {
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$feed = fetch_feed( esc_url_raw( $feed_url ) );
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if ( is_wp_error( $feed ) ) {
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$this->log_error( 'RSS fetch failed for ' . $feed_url . ': ' . $feed->get_error_message() );
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continue;
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}
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$max_items = $feed->get_item_quantity( 50 );
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// Process items in batches of 10 to manage memory usage.
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$chunk_size = 10;
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for ( $offset = 0; $offset < $max_items; $offset += $chunk_size ) {
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$items = $feed->get_items( $offset, $chunk_size );
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if ( empty( $items ) ) {
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break;
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}
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foreach ( $items as $item ) {
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$article = $this->process_rss_item( $item, $feed_url );
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if ( ! empty( $article ) ) {
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$articles[] = $article;
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}
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}
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}
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}
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return $articles;
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}
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/**
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* Process a single RSS item into an article array.
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*
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* @param SimplePie_Item $item
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* @param string $feed_url
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* @return array Article data or empty array if processing failed.
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*/
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private function process_rss_item( $item, $feed_url ) {
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$pub_date = $item->get_date( 'Y-m-d H:i:s' );
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if ( empty( $pub_date ) ) {
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$pub_date = current_time( 'mysql' );
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}
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$article_url = esc_url_raw( $item->get_permalink() );
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if ( empty( $article_url ) ) {
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return array();
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}
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$source_name = $this->resolve_article_source( $item, $feed_url, $article_url );
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return array(
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'source' => $source_name,
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'source_url' => $article_url,
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'title' => sanitize_text_field( $item->get_title() ),
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'excerpt' => wp_trim_words( wp_strip_all_tags( $item->get_description() ), 40 ),
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'content' => wp_kses_post( $item->get_content() ),
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'author' => sanitize_text_field( $item->get_author() ? $item->get_author()->get_name() : '' ),
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'thumbnail_url' => '',
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'published_at' => $pub_date,
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'categories' => $this->extract_categories( $item ),
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'tags' => '',
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'language' => 'en',
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);
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}
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/**
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* Fetch articles from NewsAPI.org.
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*
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* @param string $api_key
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* @return array
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*/
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private function fetch_newsapi( $api_key ) {
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$keywords = get_option( 'peptide_news_search_keywords', 'peptide research' );
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$articles = array();
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$url = add_query_arg( array(
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'q' => urlencode( $keywords ),
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'language' => 'en',
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'sortBy' => 'publishedAt',
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'pageSize' => 50,
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'apiKey' => $api_key,
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), 'https://newsapi.org/v2/everything' );
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$response = wp_remote_get( $url, array(
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'timeout' => 30,
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'headers' => array( 'User-Agent' => 'PeptideNewsWP/' . PEPTIDE_NEWS_VERSION ),
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) );
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if ( is_wp_error( $response ) ) {
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$this->log_error( 'NewsAPI fetch failed: ' . $response->get_error_message() );
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return $articles;
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}
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$body = json_decode( wp_remote_retrieve_body( $response ), true );
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if ( empty( $body['articles'] ) || 'ok' !== ( $body['status'] ?? '' ) ) {
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$this->log_error( 'NewsAPI returned no articles or error status.' );
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return $articles;
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}
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foreach ( $body['articles'] as $item ) {
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$pub_date = isset( $item['publishedAt'] )
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? gmdate( 'Y-m-d H:i:s', strtotime( $item['publishedAt'] ) )
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: current_time( 'mysql' );
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$articles[] = array(
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'source' => sanitize_text_field( $item['source']['name'] ?? 'NewsAPI' ),
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'source_url' => esc_url_raw( $item['url'] ?? '' ),
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'title' => sanitize_text_field( $item['title'] ?? '' ),
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'excerpt' => wp_trim_words( sanitize_text_field( $item['description'] ?? '' ), 40 ),
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'content' => wp_kses_post( $item['content'] ?? '' ),
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'author' => sanitize_text_field( $item['author'] ?? '' ),
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'thumbnail_url' => '',
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'published_at' => $pub_date,
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'categories' => '',
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'tags' => '',
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'language' => 'en',
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);
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}
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return $articles;
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}
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/**
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* Store an article in the database. Deduplication via SHA-256 hash of URL.
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*
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* @param array $article
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* @return bool True if new article was inserted.
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*/
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private function store_article( $article ) {
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global $wpdb;
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$table = $wpdb->prefix . 'peptide_news_articles';
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$hash = hash( 'sha256', $article['source_url'] );
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// Check for duplicate.
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$exists = $wpdb->get_var( $wpdb->prepare(
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"SELECT id FROM {$table} WHERE hash = %s",
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$hash
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) );
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if ( $exists ) {
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return false;
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}
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$result = $wpdb->insert(
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$table,
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array(
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'source' => $article['source'],
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'source_url' => $article['source_url'],
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'title' => $article['title'],
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'excerpt' => $article['excerpt'],
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'content' => $article['content'],
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'author' => $article['author'],
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'thumbnail_url' => $article['thumbnail_url'],
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'published_at' => $article['published_at'],
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'fetched_at' => current_time( 'mysql' ),
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'categories' => $article['categories'],
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'tags' => $article['tags'],
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'language' => $article['language'],
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'hash' => $hash,
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'is_active' => 1,
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),
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array( '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' )
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);
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return false !== $result;
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}
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/**
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* Remove articles older than the retention period.
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*/
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private function prune_old_articles() {
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global $wpdb;
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$retention_days = (int) get_option( 'peptide_news_article_retention', 90 );
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$cutoff = gmdate( 'Y-m-d H:i:s', strtotime( "-{$retention_days} days" ) );
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$table = $wpdb->prefix . 'peptide_news_articles';
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$wpdb->query( $wpdb->prepare(
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"UPDATE {$table} SET is_active = 0 WHERE published_at < %s",
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$cutoff
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) );
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}
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/**
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* Clear all article transient caches.
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*/
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private function clear_article_cache() {
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global $wpdb;
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$wpdb->query(
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$wpdb->prepare(
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"DELETE FROM {$wpdb->options}
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WHERE option_name LIKE %s
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OR option_name LIKE %s",
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$wpdb->esc_like( '_transient_peptide_news_articles_' ) . '%',
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$wpdb->esc_like( '_transient_timeout_peptide_news_articles_' ) . '%'
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)
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);
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}
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/**
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* Invalidate REST API response caches matching the articles pattern.
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*/
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private function invalidate_rest_api_cache() {
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global $wpdb;
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$wpdb->query(
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$wpdb->prepare(
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"DELETE FROM {$wpdb->options}
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WHERE option_name LIKE %s
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OR option_name LIKE %s",
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$wpdb->esc_like( '_transient_peptide_news_articles_' ) . '%',
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$wpdb->esc_like( '_transient_timeout_peptide_news_articles_' ) . '%'
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)
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);
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}
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/**
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* Extract categories from a SimplePie item.
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*
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* @param SimplePie_Item $item
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* @return string Comma-separated categories.
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*/
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private function extract_categories( $item ) {
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$categories = $item->get_categories();
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if ( empty( $categories ) ) {
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return '';
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}
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$names = array();
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foreach ( $categories as $cat ) {
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$names[] = sanitize_text_field( $cat->get_label() );
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}
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return implode( ', ', array_filter( $names ) );
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}
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/**
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* Resolve the real source name for an RSS feed item.
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*
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* Google News RSS wraps articles from other publishers behind
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* news.google.com URLs, so the feed-level domain is useless.
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* This method tries several strategies in priority order:
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*
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* 1. SimplePie <source> element (Google News RSS includes this).
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* 2. Title suffix — Google News formats titles as "Headline - Source".
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* 3. Resolve the redirect URL to get the actual publisher domain.
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* 4. Fall back to the article permalink domain.
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* 5. Last resort: feed URL domain.
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*
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* @param SimplePie_Item $item The RSS item.
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* @param string $feed_url The feed URL.
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* @param string $article_url The article permalink.
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* @return string Source name or domain.
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*/
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private function resolve_article_source( $item, $feed_url, $article_url ) {
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$feed_domain = $this->extract_domain( $feed_url );
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$is_aggregator = in_array(
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$feed_domain,
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array( 'news.google.com', 'news.yahoo.com', 'msn.com', 'feedly.com' ),
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true
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);
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// Strategy 1: SimplePie <source> element.
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$source_obj = $item->get_source();
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if ( $source_obj ) {
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$source_title = $source_obj->get_title();
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if ( ! empty( $source_title ) ) {
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return sanitize_text_field( $source_title );
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}
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$source_link = $source_obj->get_link();
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if ( ! empty( $source_link ) ) {
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$domain = $this->extract_domain( $source_link );
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if ( 'unknown' !== $domain ) {
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return $domain;
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}
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}
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}
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// Strategy 2: Parse "Headline - Source" from title (common in aggregator feeds).
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if ( $is_aggregator ) {
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$title = $item->get_title();
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if ( ! empty( $title ) && preg_match( '/\s[-\x{2013}\x{2014}]\s([^-\x{2013}\x{2014}]+)$/u', $title, $matches ) ) {
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$candidate = trim( $matches[1] );
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if ( mb_strlen( $candidate ) <= 60 && mb_strlen( $candidate ) >= 2 ) {
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return sanitize_text_field( $candidate );
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}
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}
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}
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// Strategy 3: Resolve Google News redirect URL to actual destination.
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if ( $is_aggregator ) {
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$resolved = $this->resolve_redirect_url( $article_url );
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if ( $resolved && $resolved !== $article_url ) {
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$domain = $this->extract_domain( $resolved );
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if ( 'unknown' !== $domain && $domain !== $feed_domain ) {
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return $domain;
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}
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}
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}
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// Strategy 4: Use the article permalink domain.
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$article_domain = $this->extract_domain( $article_url );
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if ( 'unknown' !== $article_domain && $article_domain !== $feed_domain ) {
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return $article_domain;
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}
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// Strategy 5: Fall back to the feed domain.
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return $feed_domain;
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}
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/**
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* Resolve a redirect URL to its final destination without downloading the body.
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*
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* @param string $url The URL to resolve.
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* @return string|false The final URL or false on failure.
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*/
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private function resolve_redirect_url( $url ) {
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if ( empty( $url ) ) {
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return false;
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}
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$response = wp_remote_head( $url, array(
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'timeout' => 8,
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'redirection' => 5,
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'user-agent' => 'Mozilla/5.0 (compatible; PeptideNewsBot/1.0)',
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) );
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if ( is_wp_error( $response ) ) {
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return false;
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}
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$final_url = wp_remote_retrieve_header( $response, 'location' );
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if ( empty( $final_url ) && isset( $response['http_response'] ) ) {
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$http_response = $response['http_response'];
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if ( method_exists( $http_response, 'get_response_object' ) ) {
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$raw = $http_response->get_response_object();
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if ( isset( $raw->url ) ) {
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$final_url = $raw->url;
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}
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}
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}
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// If we have a final URL, validate that it's not a cross-domain redirect
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if ( ! empty( $final_url ) ) {
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$original_host = wp_parse_url( $url, PHP_URL_HOST );
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$final_host = wp_parse_url( $final_url, PHP_URL_HOST );
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// Reject cross-domain redirects
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if ( $original_host !== $final_host ) {
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return false;
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}
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return $final_url;
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}
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return false;
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}
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/**
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* Backfill source names for existing articles that show an aggregator domain.
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*
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* Parses the " - Source" suffix from stored titles to update the source column.
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*
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* @return int Number of articles updated.
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|
*/
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|
public function backfill_article_sources() {
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|
global $wpdb;
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|
|
|
$table = $wpdb->prefix . 'peptide_news_articles';
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|
$aggregators = array( 'news.google.com', 'news.yahoo.com', 'msn.com' );
|
|
$placeholders = implode( ', ', array_fill( 0, count( $aggregators ), '%s' ) );
|
|
|
|
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
|
|
$articles = $wpdb->get_results( $wpdb->prepare(
|
|
"SELECT id, title, source, source_url
|
|
FROM {$table}
|
|
WHERE source IN ({$placeholders})
|
|
AND is_active = 1",
|
|
...$aggregators
|
|
) );
|
|
|
|
if ( empty( $articles ) ) {
|
|
return 0;
|
|
}
|
|
|
|
$updated = 0;
|
|
|
|
foreach ( $articles as $article ) {
|
|
$new_source = '';
|
|
|
|
// Try parsing "Headline - Source" from title.
|
|
if ( preg_match( '/\s[-\x{2013}\x{2014}]\s([^-\x{2013}\x{2014}]+)$/u', $article->title, $matches ) ) {
|
|
$candidate = trim( $matches[1] );
|
|
if ( mb_strlen( $candidate ) <= 60 && mb_strlen( $candidate ) >= 2 ) {
|
|
$new_source = sanitize_text_field( $candidate );
|
|
}
|
|
}
|
|
|
|
// Fall back to resolving the redirect URL.
|
|
if ( empty( $new_source ) ) {
|
|
$resolved = $this->resolve_redirect_url( $article->source_url );
|
|
if ( $resolved && $resolved !== $article->source_url ) {
|
|
$domain = $this->extract_domain( $resolved );
|
|
if ( 'unknown' !== $domain && ! in_array( $domain, $aggregators, true ) ) {
|
|
$new_source = $domain;
|
|
}
|
|
}
|
|
usleep( 300000 ); // 0.3s throttle for HTTP requests.
|
|
}
|
|
|
|
if ( ! empty( $new_source ) && $new_source !== $article->source ) {
|
|
$wpdb->update(
|
|
$table,
|
|
array( 'source' => $new_source ),
|
|
array( 'id' => $article->id ),
|
|
array( '%s' ),
|
|
array( '%d' )
|
|
);
|
|
$updated++;
|
|
}
|
|
}
|
|
|
|
if ( $updated > 0 ) {
|
|
$this->clear_article_cache();
|
|
}
|
|
|
|
return $updated;
|
|
}
|
|
|
|
/**
|
|
* AJAX handler for the backfill action.
|
|
*/
|
|
public function ajax_backfill_sources() {
|
|
check_ajax_referer( 'peptide_news_admin', 'nonce' );
|
|
|
|
if ( ! current_user_can( 'manage_options' ) ) {
|
|
wp_send_json_error( 'Unauthorized', 403 );
|
|
}
|
|
|
|
$updated = $this->backfill_article_sources();
|
|
wp_send_json_success( array( 'updated' => $updated ) );
|
|
}
|
|
|
|
/**
|
|
* Extract domain from a URL for source identification.
|
|
*
|
|
* @param string $url
|
|
* @return string
|
|
*/
|
|
private function extract_domain( $url ) {
|
|
$host = wp_parse_url( $url, PHP_URL_HOST );
|
|
return $host ? preg_replace( '/^www\./', '', $host ) : 'unknown';
|
|
}
|
|
|
|
/**
|
|
* Log an error to the WordPress debug log.
|
|
*
|
|
* @param string $message
|
|
*/
|
|
private function log_error( $message ) {
|
|
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
|
|
error_log( '[Peptide News] ' . $message );
|
|
}
|
|
}
|
|
}
|