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<?php
/**
* Sitemaps are stored in the database using a custom table. This class
* provides a small API for storing and retrieving sitemap data so we can
* avoid lots of explicit SQL juggling while building sitemaps. This file
* also includes the SQL used to retrieve posts and images to be included
* in the sitemaps.
*
* @since 4.8.0
* @package Jetpack
*/
/* Ensure sitemap constants are available. */
require_once __DIR__ . '/sitemap-constants.php';
/**
* This object handles any database interaction required
* for sitemap generation.
*
* @since 4.8.0
*/
class Jetpack_Sitemap_Librarian {
/**
* Retrieve a single sitemap with given name and type.
* Returns null if no such sitemap exists.
*
* @access public
* @since 4.8.0
*
* @param string $name Name of the sitemap to be retrieved.
* @param string $type Type of the sitemap to be retrieved.
*
* @return array $args {
* @type int $id ID number of the sitemap in the database.
* @type string $timestamp Most recent timestamp of the resources pointed to.
* @type string $name Name of the sitemap in the database.
* @type string $type Type of the sitemap in the database.
* @type string $text The content of the sitemap.
* }
*/
public function read_sitemap_data( $name, $type ) {
$post_array = get_posts(
array(
'numberposts' => 1,
'title' => $name,
'post_type' => $type,
'post_status' => 'draft',
)
);
$the_post = array_shift( $post_array );
if ( null === $the_post ) {
return null;
} else {
return array(
'id' => $the_post->ID,
'timestamp' => $the_post->post_date,
'name' => $the_post->post_title,
'type' => $the_post->post_type,
'text' => base64_decode( $the_post->post_content ),
);
}
}
/**
* Store a sitemap of given type and index in the database.
* Note that the timestamp is reencoded as 'Y-m-d H:i:s'.
*
* If a sitemap with that type and name does not exist, create it.
* If a sitemap with that type and name does exist, update it.
*
* @access public
* @since 4.8.0
*
* @param string $index Index of the sitemap to be stored.
* @param string $type Type of the sitemap to be stored.
* @param string $contents Contents of the sitemap to be stored.
* @param string $timestamp Timestamp of the sitemap to be stored, in 'YYYY-MM-DD hh:mm:ss' format.
*/
public function store_sitemap_data( $index, $type, $contents, $timestamp ) {
$name = jp_sitemap_filename( $type, $index );
$the_post = $this->read_sitemap_data( $name, $type );
if ( null === $the_post ) {
// Post does not exist.
wp_insert_post(
array(
'post_title' => $name,
'post_content' => base64_encode( $contents ),
'post_type' => $type,
'post_date' => date( 'Y-m-d H:i:s', strtotime( $timestamp ) ),
)
);
} else {
// Post does exist.
wp_insert_post(
array(
'ID' => $the_post['id'],
'post_title' => $name,
'post_content' => base64_encode( $contents ),
'post_type' => $type,
'post_date' => date( 'Y-m-d H:i:s', strtotime( $timestamp ) ),
)
);
}
}
/**
* Delete a sitemap by name and type.
*
* @access public
* @since 4.8.0
*
* @param string $name Row name.
* @param string $type Row type.
*
* @return bool 'true' if a row was deleted, 'false' otherwise.
*/
public function delete_sitemap_data( $name, $type ) {
$the_post = $this->read_sitemap_data( $name, $type );
if ( null === $the_post ) {
return false;
} else {
wp_delete_post( $the_post['id'] );
return true;
}
}
/**
* Retrieve the contents of a sitemap with given name and type.
* If no such sitemap exists, return the empty string. Note that the
* returned string is run through wp_specialchars_decode.
*
* @access public
* @since 4.8.0
*
* @param string $name Row name.
* @param string $type Row type.
*
* @return string Text of the specified sitemap, or the empty string.
*/
public function get_sitemap_text( $name, $type ) {
$row = $this->read_sitemap_data( $name, $type );
if ( null === $row ) {
return '';
} else {
return $row['text'];
}
}
/**
* Delete numbered sitemaps named prefix-(p+1), prefix-(p+2), ...
* until the first nonexistent sitemap is found.
*
* @access public
* @since 4.8.0
*
* @param int $position Number before the first sitemap to be deleted.
* @param string $type Sitemap type.
*/
public function delete_numbered_sitemap_rows_after( $position, $type ) {
$any_left = true;
while ( true === $any_left ) {
$position++;
$name = jp_sitemap_filename( $type, $position );
$any_left = $this->delete_sitemap_data( $name, $type );
}
}
/**
* Deletes all stored sitemap data.
*
* @access public
* @since 4.8.0
*/
public function delete_all_stored_sitemap_data() {
$this->delete_sitemap_type_data( JP_MASTER_SITEMAP_TYPE );
$this->delete_sitemap_type_data( JP_PAGE_SITEMAP_TYPE );
$this->delete_sitemap_type_data( JP_PAGE_SITEMAP_INDEX_TYPE );
$this->delete_sitemap_type_data( JP_IMAGE_SITEMAP_TYPE );
$this->delete_sitemap_type_data( JP_IMAGE_SITEMAP_INDEX_TYPE );
$this->delete_sitemap_type_data( JP_VIDEO_SITEMAP_TYPE );
$this->delete_sitemap_type_data( JP_VIDEO_SITEMAP_INDEX_TYPE );
}
/**
* Deletes all sitemap data of specific type
*
* @access protected
* @since 5.3.0
*
* @param String $type Type of sitemap.
*/
protected function delete_sitemap_type_data( $type ) {
$ids = get_posts(
array(
'post_type' => $type,
'post_status' => 'draft',
'fields' => 'ids',
)
);
foreach ( $ids as $id ) {
wp_trash_post( $id );
}
}
/**
* Retrieve an array of sitemap rows (of a given type) sorted by ID.
*
* Returns the smallest $num_posts sitemap rows (measured by ID)
* of the given type which are larger than $from_id.
*
* @access public
* @since 4.8.0
*
* @param string $type Type of the sitemap rows to retrieve.
* @param int $from_id Greatest lower bound of retrieved sitemap post IDs.
* @param int $num_posts Largest number of sitemap posts to retrieve.
*
* @return array The sitemaps, as an array of associative arrays.
*/
public function query_sitemaps_after_id( $type, $from_id, $num_posts ) {
global $wpdb;
return $wpdb->get_results(
$wpdb->prepare(
"SELECT *
FROM $wpdb->posts
WHERE post_type=%s
AND post_status=%s
AND ID>%d
ORDER BY ID ASC
LIMIT %d;",
$type,
'draft',
$from_id,
$num_posts
),
ARRAY_A
); // WPCS: db call ok; no-cache ok.
}
/**
* Retrieve an array of posts sorted by ID.
*
* More precisely, returns the smallest $num_posts posts
* (measured by ID) which are larger than $from_id.
*
* @access public
* @since 4.8.0
*
* @param int $from_id Greatest lower bound of retrieved post IDs.
* @param int $num_posts Largest number of posts to retrieve.
*
* @return array The posts.
*/
public function query_posts_after_id( $from_id, $num_posts ) {
global $wpdb;
// Get the list of post types to include and prepare for query.
$post_types = Jetpack_Options::get_option_and_ensure_autoload(
'jetpack_sitemap_post_types',
array( 'page', 'post' )
);
foreach ( (array) $post_types as $i => $post_type ) {
$post_types[ $i ] = $wpdb->prepare( '%s', $post_type );
}
$post_types_list = join( ',', $post_types );
return $wpdb->get_results(
$wpdb->prepare(
"SELECT *
FROM $wpdb->posts
WHERE post_status='publish'
AND post_type IN ($post_types_list)
AND ID>%d
ORDER BY ID ASC
LIMIT %d;",
$from_id,
$num_posts
)
); // WPCS: db call ok; no-cache ok.
}
/**
* Get the most recent timestamp among approved comments for the given post_id.
*
* @access public
* @since 4.8.0
*
* @param int $post_id Post identifier.
*
* @return int Timestamp in 'Y-m-d h:i:s' format (UTC) of the most recent comment on the given post, or null if no such comments exist.
*/
public function query_latest_approved_comment_time_on_post( $post_id ) {
global $wpdb;
return $wpdb->get_var(
$wpdb->prepare(
"SELECT MAX(comment_date_gmt)
FROM $wpdb->comments
WHERE comment_post_ID = %d AND comment_approved = '1' AND comment_type in ( '', 'comment' )",
$post_id
)
);
}
/**
* Retrieve an array of image posts sorted by ID.
*
* More precisely, returns the smallest $num_posts image posts
* (measured by ID) which are larger than $from_id.
*
* @access public
* @since 4.8.0
*
* @param int $from_id Greatest lower bound of retrieved image post IDs.
* @param int $num_posts Largest number of image posts to retrieve.
*
* @return array The posts.
*/
public function query_images_after_id( $from_id, $num_posts ) {
global $wpdb;
return $wpdb->get_results(
$wpdb->prepare(
"SELECT *
FROM $wpdb->posts
WHERE post_type='attachment'
AND post_mime_type LIKE %s
AND ID>%d
ORDER BY ID ASC
LIMIT %d;",
'image/%',
$from_id,
$num_posts
)
); // WPCS: db call ok; no-cache ok.
}
/**
* Retrieve an array of video posts sorted by ID.
*
* More precisely, returns the smallest $num_posts video posts
* (measured by ID) which are larger than $from_id.
*
* @access public
* @since 4.8.0
*
* @param int $from_id Greatest lower bound of retrieved video post IDs.
* @param int $num_posts Largest number of video posts to retrieve.
*
* @return array The posts.
*/
public function query_videos_after_id( $from_id, $num_posts ) {
global $wpdb;
return $wpdb->get_results(
$wpdb->prepare(
"SELECT *
FROM $wpdb->posts
WHERE post_type='attachment'
AND post_mime_type LIKE %s
AND ID>%d
ORDER BY ID ASC
LIMIT %d;",
'video/%',
$from_id,
$num_posts
)
); // WPCS: db call ok; no-cache ok.
}
/**
* Retrieve an array of published posts from the last 2 days.
*
* @access public
* @since 4.8.0
*
* @param int $num_posts Largest number of posts to retrieve.
*
* @return array The posts.
*/
public function query_most_recent_posts( $num_posts ) {
global $wpdb;
$two_days_ago = date( 'Y-m-d', strtotime( '-2 days' ) );
/**
* Filter post types to be included in news sitemap.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param array $post_types Array with post types to include in news sitemap.
*/
$post_types = apply_filters(
'jetpack_sitemap_news_sitemap_post_types',
array( 'page', 'post' )
);
foreach ( (array) $post_types as $i => $post_type ) {
$post_types[ $i ] = $wpdb->prepare( '%s', $post_type );
}
$post_types_list = join( ',', $post_types );
return $wpdb->get_results(
$wpdb->prepare(
"SELECT *
FROM $wpdb->posts
WHERE post_status='publish'
AND post_date >= '%s'
AND post_type IN ($post_types_list)
ORDER BY post_date DESC
LIMIT %d;",
$two_days_ago,
$num_posts
)
); // WPCS: db call ok; no-cache ok.
}
}