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<?php
/**
* Comments
*
* Handle comments (reviews and order notes).
*
* @package WooCommerce\Classes\Products
* @version 2.3.0
*/
defined( 'ABSPATH' ) || exit;
/**
* Comments class.
*/
class WC_Comments {
/**
* Hook in methods.
*/
public static function init() {
// Rating posts.
add_filter( 'comments_open', array( __CLASS__, 'comments_open' ), 10, 2 );
add_filter( 'preprocess_comment', array( __CLASS__, 'check_comment_rating' ), 0 );
add_action( 'comment_post', array( __CLASS__, 'add_comment_rating' ), 1 );
add_action( 'comment_moderation_recipients', array( __CLASS__, 'comment_moderation_recipients' ), 10, 2 );
// Clear transients.
add_action( 'wp_update_comment_count', array( __CLASS__, 'clear_transients' ) );
// Secure order notes.
add_filter( 'comments_clauses', array( __CLASS__, 'exclude_order_comments' ), 10, 1 );
add_filter( 'comment_feed_where', array( __CLASS__, 'exclude_order_comments_from_feed_where' ) );
// Secure webhook comments.
add_filter( 'comments_clauses', array( __CLASS__, 'exclude_webhook_comments' ), 10, 1 );
add_filter( 'comment_feed_where', array( __CLASS__, 'exclude_webhook_comments_from_feed_where' ) );
// Count comments.
add_filter( 'wp_count_comments', array( __CLASS__, 'wp_count_comments' ), 10, 2 );
// Delete comments count cache whenever there is a new comment or a comment status changes.
add_action( 'wp_insert_comment', array( __CLASS__, 'delete_comments_count_cache' ) );
add_action( 'wp_set_comment_status', array( __CLASS__, 'delete_comments_count_cache' ) );
// Support avatars for `review` comment type.
add_filter( 'get_avatar_comment_types', array( __CLASS__, 'add_avatar_for_review_comment_type' ) );
// Add Product Reviews filter for `review` comment type.
add_filter( 'admin_comment_types_dropdown', array( __CLASS__, 'add_review_comment_filter' ) );
// Review of verified purchase.
add_action( 'comment_post', array( __CLASS__, 'add_comment_purchase_verification' ) );
// Set comment type.
add_action( 'preprocess_comment', array( __CLASS__, 'update_comment_type' ), 1 );
// Validate product reviews if requires verified owners.
add_action( 'pre_comment_on_post', array( __CLASS__, 'validate_product_review_verified_owners' ) );
}
/**
* See if comments are open.
*
* @since 3.1.0
* @param bool $open Whether the current post is open for comments.
* @param int $post_id Post ID.
* @return bool
*/
public static function comments_open( $open, $post_id ) {
if ( 'product' === get_post_type( $post_id ) && ! post_type_supports( 'product', 'comments' ) ) {
$open = false;
}
return $open;
}
/**
* Exclude order comments from queries and RSS.
*
* This code should exclude shop_order comments from queries. Some queries (like the recent comments widget on the dashboard) are hardcoded.
* and are not filtered, however, the code current_user_can( 'read_post', $comment->comment_post_ID ) should keep them safe since only admin and.
* shop managers can view orders anyway.
*
* The frontend view order pages get around this filter by using remove_filter('comments_clauses', array( 'WC_Comments' ,'exclude_order_comments'), 10, 1 );
*
* @param array $clauses A compacted array of comment query clauses.
* @return array
*/
public static function exclude_order_comments( $clauses ) {
$clauses['where'] .= ( $clauses['where'] ? ' AND ' : '' ) . " comment_type != 'order_note' ";
return $clauses;
}
/**
* Exclude order comments from feed.
*
* @deprecated 3.1
* @param mixed $join Deprecated.
*/
public static function exclude_order_comments_from_feed_join( $join ) {
wc_deprecated_function( 'WC_Comments::exclude_order_comments_from_feed_join', '3.1' );
}
/**
* Exclude order comments from queries and RSS.
*
* @param string $where The WHERE clause of the query.
* @return string
*/
public static function exclude_order_comments_from_feed_where( $where ) {
return $where . ( $where ? ' AND ' : '' ) . " comment_type != 'order_note' ";
}
/**
* Exclude webhook comments from queries and RSS.
*
* @since 2.2
* @param array $clauses A compacted array of comment query clauses.
* @return array
*/
public static function exclude_webhook_comments( $clauses ) {
$clauses['where'] .= ( $clauses['where'] ? ' AND ' : '' ) . " comment_type != 'webhook_delivery' ";
return $clauses;
}
/**
* Exclude webhooks comments from feed.
*
* @deprecated 3.1
* @param mixed $join Deprecated.
*/
public static function exclude_webhook_comments_from_feed_join( $join ) {
wc_deprecated_function( 'WC_Comments::exclude_webhook_comments_from_feed_join', '3.1' );
}
/**
* Exclude webhook comments from queries and RSS.
*
* @since 2.1
* @param string $where The WHERE clause of the query.
* @return string
*/
public static function exclude_webhook_comments_from_feed_where( $where ) {
return $where . ( $where ? ' AND ' : '' ) . " comment_type != 'webhook_delivery' ";
}
/**
* Validate the comment ratings.
*
* @param array $comment_data Comment data.
* @return array
*/
public static function check_comment_rating( $comment_data ) {
// If posting a comment (not trackback etc) and not logged in.
if ( ! is_admin() && isset( $_POST['comment_post_ID'], $_POST['rating'], $comment_data['comment_type'] ) && 'product' === get_post_type( absint( $_POST['comment_post_ID'] ) ) && empty( $_POST['rating'] ) && self::is_default_comment_type( $comment_data['comment_type'] ) && wc_review_ratings_enabled() && wc_review_ratings_required() ) { // WPCS: input var ok, CSRF ok.
wp_die( esc_html__( 'Please rate the product.', 'woocommerce' ) );
exit;
}
return $comment_data;
}
/**
* Rating field for comments.
*
* @param int $comment_id Comment ID.
*/
public static function add_comment_rating( $comment_id ) {
if ( isset( $_POST['rating'], $_POST['comment_post_ID'] ) && 'product' === get_post_type( absint( $_POST['comment_post_ID'] ) ) ) { // WPCS: input var ok, CSRF ok.
if ( ! $_POST['rating'] || $_POST['rating'] > 5 || $_POST['rating'] < 0 ) { // WPCS: input var ok, CSRF ok, sanitization ok.
return;
}
add_comment_meta( $comment_id, 'rating', intval( $_POST['rating'] ), true ); // WPCS: input var ok, CSRF ok.
$post_id = isset( $_POST['comment_post_ID'] ) ? absint( $_POST['comment_post_ID'] ) : 0; // WPCS: input var ok, CSRF ok.
if ( $post_id ) {
self::clear_transients( $post_id );
}
}
}
/**
* Modify recipient of review email.
*
* @param array $emails Emails.
* @param int $comment_id Comment ID.
* @return array
*/
public static function comment_moderation_recipients( $emails, $comment_id ) {
$comment = get_comment( $comment_id );
if ( $comment && 'product' === get_post_type( $comment->comment_post_ID ) ) {
$emails = array( get_option( 'admin_email' ) );
}
return $emails;
}
/**
* Ensure product average rating and review count is kept up to date.
*
* @param int $post_id Post ID.
*/
public static function clear_transients( $post_id ) {
if ( 'product' === get_post_type( $post_id ) ) {
$product = wc_get_product( $post_id );
$product->set_rating_counts( self::get_rating_counts_for_product( $product ) );
$product->set_average_rating( self::get_average_rating_for_product( $product ) );
$product->set_review_count( self::get_review_count_for_product( $product ) );
$product->save();
}
}
/**
* Delete comments count cache whenever there is
* new comment or the status of a comment changes. Cache
* will be regenerated next time WC_Comments::wp_count_comments()
* is called.
*/
public static function delete_comments_count_cache() {
delete_transient( 'wc_count_comments' );
}
/**
* Remove order notes and webhook delivery logs from wp_count_comments().
*
* @since 2.2
* @param object $stats Comment stats.
* @param int $post_id Post ID.
* @return object
*/
public static function wp_count_comments( $stats, $post_id ) {
global $wpdb;
if ( 0 === $post_id ) {
$stats = get_transient( 'wc_count_comments' );
if ( ! $stats ) {
$stats = array(
'total_comments' => 0,
'all' => 0,
);
$count = $wpdb->get_results(
"
SELECT comment_approved, COUNT(*) AS num_comments
FROM {$wpdb->comments}
WHERE comment_type NOT IN ('action_log', 'order_note', 'webhook_delivery')
GROUP BY comment_approved
",
ARRAY_A
);
$approved = array(
'0' => 'moderated',
'1' => 'approved',
'spam' => 'spam',
'trash' => 'trash',
'post-trashed' => 'post-trashed',
);
foreach ( (array) $count as $row ) {
// Don't count post-trashed toward totals.
if ( ! in_array( $row['comment_approved'], array( 'post-trashed', 'trash', 'spam' ), true ) ) {
$stats['all'] += $row['num_comments'];
$stats['total_comments'] += $row['num_comments'];
} elseif ( ! in_array( $row['comment_approved'], array( 'post-trashed', 'trash' ), true ) ) {
$stats['total_comments'] += $row['num_comments'];
}
if ( isset( $approved[ $row['comment_approved'] ] ) ) {
$stats[ $approved[ $row['comment_approved'] ] ] = $row['num_comments'];
}
}
foreach ( $approved as $key ) {
if ( empty( $stats[ $key ] ) ) {
$stats[ $key ] = 0;
}
}
$stats = (object) $stats;
set_transient( 'wc_count_comments', $stats );
}
}
return $stats;
}
/**
* Make sure WP displays avatars for comments with the `review` type.
*
* @since 2.3
* @param array $comment_types Comment types.
* @return array
*/
public static function add_avatar_for_review_comment_type( $comment_types ) {
return array_merge( $comment_types, array( 'review' ) );
}
/**
* Add Product Reviews filter for `review` comment type.
*
* @since 6.0.0
*
* @param array $comment_types Array of comment type labels keyed by their name.
*
* @return array
*/
public static function add_review_comment_filter( array $comment_types ): array {
$comment_types['review'] = __( 'Product Reviews', 'woocommerce' );
return $comment_types;
}
/**
* Determine if a review is from a verified owner at submission.
*
* @param int $comment_id Comment ID.
* @return bool
*/
public static function add_comment_purchase_verification( $comment_id ) {
$comment = get_comment( $comment_id );
$verified = false;
if ( 'product' === get_post_type( $comment->comment_post_ID ) ) {
$verified = wc_customer_bought_product( $comment->comment_author_email, $comment->user_id, $comment->comment_post_ID );
add_comment_meta( $comment_id, 'verified', (int) $verified, true );
}
return $verified;
}
/**
* Get product rating for a product. Please note this is not cached.
*
* @since 3.0.0
* @param WC_Product $product Product instance.
* @return float
*/
public static function get_average_rating_for_product( &$product ) {
global $wpdb;
$count = $product->get_rating_count();
if ( $count ) {
$ratings = $wpdb->get_var(
$wpdb->prepare(
"
SELECT SUM(meta_value) FROM $wpdb->commentmeta
LEFT JOIN $wpdb->comments ON $wpdb->commentmeta.comment_id = $wpdb->comments.comment_ID
WHERE meta_key = 'rating'
AND comment_post_ID = %d
AND comment_approved = '1'
AND meta_value > 0
",
$product->get_id()
)
);
$average = number_format( $ratings / $count, 2, '.', '' );
} else {
$average = 0;
}
return $average;
}
/**
* Utility function for getting review counts for multiple products in one query. This is not cached.
*
* @since 5.0.0
*
* @param array $product_ids Array of product IDs.
*
* @return array
*/
public static function get_review_counts_for_product_ids( $product_ids ) {
global $wpdb;
if ( empty( $product_ids ) ) {
return array();
}
$product_id_string_placeholder = substr( str_repeat( ',%s', count( $product_ids ) ), 1 );
$review_counts = $wpdb->get_results(
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- Ignored for allowing interpolation in IN query.
$wpdb->prepare(
"
SELECT comment_post_ID as product_id, COUNT( comment_post_ID ) as review_count
FROM $wpdb->comments
WHERE
comment_parent = 0
AND comment_post_ID IN ( $product_id_string_placeholder )
AND comment_approved = '1'
AND comment_type in ( 'review', '', 'comment' )
GROUP BY product_id
",
$product_ids
),
// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared.
ARRAY_A
);
// Convert to key value pairs.
$counts = array_replace( array_fill_keys( $product_ids, 0 ), array_column( $review_counts, 'review_count', 'product_id' ) );
return $counts;
}
/**
* Get product review count for a product (not replies). Please note this is not cached.
*
* @since 3.0.0
* @param WC_Product $product Product instance.
* @return int
*/
public static function get_review_count_for_product( &$product ) {
$counts = self::get_review_counts_for_product_ids( array( $product->get_id() ) );
return $counts[ $product->get_id() ];
}
/**
* Get product rating count for a product. Please note this is not cached.
*
* @since 3.0.0
* @param WC_Product $product Product instance.
* @return int[]
*/
public static function get_rating_counts_for_product( &$product ) {
global $wpdb;
$counts = array();
$raw_counts = $wpdb->get_results(
$wpdb->prepare(
"
SELECT meta_value, COUNT( * ) as meta_value_count FROM $wpdb->commentmeta
LEFT JOIN $wpdb->comments ON $wpdb->commentmeta.comment_id = $wpdb->comments.comment_ID
WHERE meta_key = 'rating'
AND comment_post_ID = %d
AND comment_approved = '1'
AND meta_value > 0
GROUP BY meta_value
",
$product->get_id()
)
);
foreach ( $raw_counts as $count ) {
$counts[ $count->meta_value ] = absint( $count->meta_value_count ); // WPCS: slow query ok.
}
return $counts;
}
/**
* Update comment type of product reviews.
*
* @since 3.5.0
* @param array $comment_data Comment data.
* @return array
*/
public static function update_comment_type( $comment_data ) {
if ( ! is_admin() && isset( $_POST['comment_post_ID'], $comment_data['comment_type'] ) && self::is_default_comment_type( $comment_data['comment_type'] ) && 'product' === get_post_type( absint( $_POST['comment_post_ID'] ) ) ) { // WPCS: input var ok, CSRF ok.
$comment_data['comment_type'] = 'review';
}
return $comment_data;
}
/**
* Validate product reviews if requires a verified owner.
*
* @param int $comment_post_id Post ID.
*/
public static function validate_product_review_verified_owners( $comment_post_id ) {
// Only validate if option is enabled.
if ( 'yes' !== get_option( 'woocommerce_review_rating_verification_required' ) ) {
return;
}
// Validate only products.
if ( 'product' !== get_post_type( $comment_post_id ) ) {
return;
}
// Skip if is a verified owner.
if ( wc_customer_bought_product( '', get_current_user_id(), $comment_post_id ) ) {
return;
}
wp_die(
esc_html__( 'Only logged in customers who have purchased this product may leave a review.', 'woocommerce' ),
esc_html__( 'Reviews can only be left by "verified owners"', 'woocommerce' ),
array(
'code' => 403,
)
);
}
/**
* Determines if a comment is of the default type.
*
* Prior to WordPress 5.5, '' was the default comment type.
* As of 5.5, the default type is 'comment'.
*
* @since 4.3.0
* @param string $comment_type Comment type.
* @return bool
*/
private static function is_default_comment_type( $comment_type ) {
return ( '' === $comment_type || 'comment' === $comment_type );
}
}
WC_Comments::init();
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