487 lines
13 KiB
PHP
487 lines
13 KiB
PHP
<?php
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/**
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* Class SBY_Feed_Locator
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*
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* Locates feeds on the site and logs information about them in the database.
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*
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* @since 1.14
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*/
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namespace SmashBalloon\YouTubeFeed;
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use Smashballoon\Customizer\DB;
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class Feed_Locator
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{
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private $feed_details;
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private $expiration_time;
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private $matching_entries;
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public function __construct( $feed_details ) {
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/**
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* Example of how $feed_details is structured
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*
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* $feed_details = array(
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* 'feed_id' => $transient_name,
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* 'atts' => $atts,
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* 'location' => array(
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* 'post_id' => get_the_ID(),
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* 'html' => 'unknown'
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* )
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* );
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*/
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$this->feed_details = $feed_details;
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$this->matching_entries = array();
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$this->expiration_time = time() - 2 * WEEK_IN_SECONDS;
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}
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/**
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* Returns records that match the post ID and feed ID
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* of the feed being located
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*
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* @return array
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*
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* @since 1.14
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*/
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public function retrieve_matching_entries() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$results = $wpdb->get_results( $wpdb->prepare("
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SELECT *
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FROM $feed_locator_table_name
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WHERE post_id = %d
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AND feed_id = %s", $this->feed_details['location']['post_id'], $this->feed_details['feed_id'] ),ARRAY_A );
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return $results;
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}
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/**
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* Add feed being located to the database
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*
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* @since 1.14
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*/
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public function insert_entry() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$affected = $wpdb->query( $wpdb->prepare( "INSERT INTO $feed_locator_table_name
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(feed_id,
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post_id,
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html_location,
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shortcode_atts,
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last_update)
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VALUES (
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%s,
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%d,
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%s,
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%s,
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%s);",
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$this->feed_details['atts']['feed'],
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$this->feed_details['location']['post_id'],
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$this->feed_details['location']['html'],
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$this->sby_json_encode( $this->feed_details['atts'] ),
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date( 'Y-m-d H:i:s' ) ) );
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}
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/**
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* Update a record based on the existing "id" column. Location can change
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* from "unknown" to one of footer, content, header, or sidebar.
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*
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* @param $id
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* @param $location
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*
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* @since 1.14
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*/
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public function update_entry( $id, $location ) {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$query = $wpdb->query( $wpdb->prepare( "
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UPDATE $feed_locator_table_name
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SET last_update = %s, html_location = %s
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WHERE id = %d;", date( 'Y-m-d H:i:s' ), $location, $id ) );
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}
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/**
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* Processes a feed being located based on whether or not the record
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* exists as well as whether or not an unknown location needs to be
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* updated.
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*
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* @since 1.14
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*/
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public function add_or_update_entry() {
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if ( empty( $this->feed_details['feed_id'] ) ) {
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return;
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}
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$this->matching_entries = $this->retrieve_matching_entries();
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if ( empty( $this->matching_entries ) ) {
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$this->insert_entry();
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} else {
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$matching_indices = array();
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$matched_location = false;
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$non_unknown_match = false;
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$unknown_match = false;
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foreach ( $this->matching_entries as $index => $matching_entry ) {
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$details_atts = is_array( $this->feed_details['atts'] ) ? $this->feed_details['atts'] : array();
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$matching_atts = json_decode( $matching_entry['shortcode_atts'], true );
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if ( ! is_array( $matching_atts ) ) {
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$matching_atts = array();
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}
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$atts_diff = array_diff( $matching_atts, $details_atts ); // determines if the shortcode settings match the shortcode settings of an existing feed
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if ( empty( $atts_diff ) ) {
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$matching_indices[] = $matching_entry['id'];
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if ( $matching_entry['html_location'] === $this->feed_details['location']['html'] ) {
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$matched_location = $index;
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$this->update_entry( $matching_entry['id'], $matching_entry['html_location'] );
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}
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if ( $matching_entry['html_location'] !== 'unknown' ) {
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$non_unknown_match = $index;
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} else {
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$unknown_match = $index;
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}
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}
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}
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if ( false === $matched_location ) {
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// if there is no matched location, there is only one feed on the page, and the feed being checked has an unknown location, update the known location
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if ( count( $matching_indices ) === 1
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&& $this->feed_details['location']['html'] === 'unknown'
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&& false !== $non_unknown_match ) {
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$this->update_entry( $this->matching_entries[ $non_unknown_match ]['id'], $this->matching_entries[ $non_unknown_match ]['html_location'] );
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} else {
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if ( $this->feed_details['location']['html'] !== 'unknown'
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&& false !== $unknown_match ) {
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$this->update_entry( $this->matching_entries[ $unknown_match ]['id'], $this->feed_details['location']['html'] );
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} else {
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$this->insert_entry();
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}
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}
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}
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}
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}
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/**
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* Old feeds are only detected once a day to keep load on the server low.
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*
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* @return bool
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*
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* @since 1.14
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*/
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public static function should_clear_old_locations() {
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$sby_statuses_option = get_option( 'sby_statuses', array() );
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$last_old_feed_check = isset( $sby_statuses_option['feed_locator']['last_check'] ) ? $sby_statuses_option['feed_locator']['last_check'] : 0;
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return $last_old_feed_check < time() - DAY_IN_SECONDS;
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}
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/**
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* Old feeds are removed if they haven't been updated in two weeks.
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*
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* @since 1.14
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*/
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public static function delete_old_locations() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$two_weeks_ago = date( 'Y-m-d H:i:s', time() - 2 * WEEK_IN_SECONDS );
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$affected = $wpdb->query( $wpdb->prepare(
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"DELETE FROM $feed_locator_table_name WHERE last_update < %s;", $two_weeks_ago ) );
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$sby_statuses_option = get_option( 'sby_statuses', array() );
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$sby_statuses_option['feed_locator']['last_check'] = time();
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if ( ! isset( $sby_statuses_option['feed_locator']['initialized'] ) ) {
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$sby_statuses_option['feed_locator']['initialized'] = time();
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}
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update_option( 'sby_statuses', $sby_statuses_option, true );
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}
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/**
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* Feeds are located with the page load randomly (5% or 1/30 loads)
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* to decrease load on the server.
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*
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* If the locating just started (within 5 minutes) it is run more often
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* to collect feed locations quickly.
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*
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* @return bool
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*
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* @since 1.14
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*/
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public static function should_do_locating() {
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$sby_statuses_option = get_option( 'sby_statuses', array() );
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if ( isset( $sby_statuses_option['feed_locator']['initialized'] )
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&& $sby_statuses_option['feed_locator']['initialized'] < (time() - 300) ) {
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$should_do_locating = rand( 1, 10 ) === 10;
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} else {
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$should_do_locating = rand( 1, 30 ) === 30;
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}
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$should_do_locating = apply_filters( 'sby_should_do_locating', $should_do_locating );
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return $should_do_locating;
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}
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/**
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* Simliar to the should_do_locating method but will add an additional
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* database query to see if there is a feed with an unknown location that
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* matches the details of the feed in question.
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*
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* @param $feed_id
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* @param $post_id
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*
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* @return bool
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*
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* @since 1.14
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*/
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public static function should_do_ajax_locating( $feed_id, $post_id ) {
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$should_do_locating = rand( 1, 50 ) === 50;
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$should_do_locating = apply_filters( 'sby_should_do_ajax_locating', $should_do_locating );
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return $should_do_locating;
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}
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/**
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* Feeds are located with the page load randomly (1/30 loads)
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* to decrease load on the server.
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*
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* If the locating just started (within 5 minutes) it is run more often
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* to collect feed locations quickly.
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*
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* @param $feed_id
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* @param $post_id
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*
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* @return bool
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*
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* @since 1.14
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*/
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public static function entries_need_locating( $feed_id, $post_id ) {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$one_day_ago = date( 'Y-m-d H:i:s', time() - DAY_IN_SECONDS );
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$results = $wpdb->get_results( $wpdb->prepare("
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SELECT id
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FROM $feed_locator_table_name
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WHERE html_location = 'unknown'
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AND last_update < %s
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AND feed_id = %s
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AND post_id = %d
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LIMIT 1;", $one_day_ago, $feed_id, $post_id ),ARRAY_A );
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return isset( $results[0] );
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}
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/**
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* A custom table stores locations
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*
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* @since 1.14
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*/
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public static function create_table() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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if ( $wpdb->get_var( "show tables like '$feed_locator_table_name'" ) != $feed_locator_table_name ) {
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$sql = "CREATE TABLE " . $feed_locator_table_name . " (
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id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
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feed_id VARCHAR(50) DEFAULT '' NOT NULL,
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post_id BIGINT(20) UNSIGNED NOT NULL,
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html_location VARCHAR(50) DEFAULT 'unknown' NOT NULL,
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shortcode_atts LONGTEXT NOT NULL,
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last_update DATETIME
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);";
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$wpdb->query( $sql );
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}
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$error = $wpdb->last_error;
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$query = $wpdb->last_query;
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$had_error = false;
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if ( $wpdb->get_var( "show tables like '$feed_locator_table_name'" ) != $feed_locator_table_name ) {
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$had_error = true;
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}
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if ( ! $had_error ) {
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$wpdb->query( "ALTER TABLE $feed_locator_table_name ADD INDEX feed_id (feed_id)" );
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$wpdb->query( "ALTER TABLE $feed_locator_table_name ADD INDEX post_id (post_id)" );
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}
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}
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/**
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* Counts the number of unique feeds in the database.
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*
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* @return int
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*
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* @since 1.14
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*/
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public static function count_unique() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$results_content = $wpdb->get_results( "
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SELECT COUNT(*) AS num_entries
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FROM $feed_locator_table_name
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WHERE html_location = 'content'
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", ARRAY_A );
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$results_other = $wpdb->get_results( "
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SELECT COUNT(*) AS num_entries
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FROM $feed_locator_table_name
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WHERE html_location != 'content'
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AND html_location != 'unknown'
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GROUP BY feed_id
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", ARRAY_A );
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$total = 0;
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if ( isset( $results_content[0]['num_entries'] ) ) {
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$total += (int)$results_content[0]['num_entries'];
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}
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if ( isset( $results_other[0]['num_entries'] ) ) {
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$total += (int)$results_other[0]['num_entries'];
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}
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return $total;
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}
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/**
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* Creates a summary of the located feeds in an array
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*
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* @return array
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*
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* @since 1.14
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*/
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public static function summary() {
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global $wpdb;
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$feed_locator_table_name = esc_sql( $wpdb->prefix . SBY_FEED_LOCATOR );
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$locations = array(
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array(
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'label' => __( 'Content', 'feeds-for-youtube' ),
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'html_locations' => array( 'content', 'unknown' )
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),
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array(
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'label' => __( 'Header', 'feeds-for-youtube' ),
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'html_locations' => array( 'header' ),
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'group_by' => 'feed_id'
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),
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array(
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'label' => __( 'Sidebar', 'feeds-for-youtube' ),
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'html_locations' => array( 'sidebar' ),
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'group_by' => 'feed_id'
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),
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array(
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'label' => __( 'Footer', 'feeds-for-youtube' ),
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'html_locations' => array( 'footer' ),
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'group_by' => 'feed_id'
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)
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);
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$one_result_found = false;
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foreach ( $locations as $key => $location ) {
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$in = implode( "', '", $location['html_locations'] );
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$group_by = isset( $location['group_by'] ) ? "GROUP BY " . $location['group_by'] : "";
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$results = $wpdb->get_results("
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SELECT *
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FROM $feed_locator_table_name
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WHERE html_location IN ('$in')
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$group_by
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ORDER BY last_update ASC",ARRAY_A );
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if ( isset( $results[0] ) ) {
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$one_result_found = true;
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}
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$locations[ $key ]['results'] = $results;
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}
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if ( ! $one_result_found ) {
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return array();
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}
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return $locations;
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}
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private function sby_json_encode( $thing ) {
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if ( function_exists( 'wp_json_encode' ) ) {
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return wp_json_encode( $thing );
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} else {
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return json_encode( $thing );
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}
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}
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public static function legacy_feed_locator_query( $args ) {
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global $wpdb;
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$feed_locator_table_name = $wpdb->prefix . SBY_FEED_LOCATOR;
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$group_by = '';
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if ( isset( $args['group_by'] ) ) {
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$group_by = 'GROUP BY ' . esc_sql( $args['group_by'] );
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}
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$location_string = 'content';
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if ( isset( $args['html_location'] ) ) {
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$locations = array_map( 'esc_sql', $args['html_location'] );
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$location_string = implode( "', '", $locations );
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}
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$page = 0;
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if ( isset( $args['page'] ) ) {
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$page = (int) $args['page'] - 1;
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unset( $args['page'] );
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}
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$offset = max( 0, $page * DB::RESULTS_PER_PAGE );
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$limit = DB::RESULTS_PER_PAGE;
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$results = $wpdb->get_results(
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"
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SELECT *
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FROM $feed_locator_table_name
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WHERE feed_id NOT LIKE '*%'
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AND html_location IN ( '$location_string' )
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$group_by
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LIMIT $limit
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OFFSET $offset;",
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ARRAY_A
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);
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return $results;
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}
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public static function update_legacy_to_builder( $args ) {
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global $wpdb;
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$feed_locator_table_name = $wpdb->prefix . SBY_FEED_LOCATOR;
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$data = array(
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'feed_id' => '*' . $args['new_feed_id'],
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'shortcode_atts' => '{"feed":"' . $args['new_feed_id'] . '"}',
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);
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$affected = $wpdb->query(
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$wpdb->prepare(
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"UPDATE $feed_locator_table_name
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SET feed_id = %s, shortcode_atts = %s",
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$data['feed_id'],
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$data['shortcode_atts']
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)
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);
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return $affected;
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}
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} |