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<?php
/**
* Server-side rendering of the `core/rss` block.
*
* @package WordPress
*/
/**
* Renders the `core/rss` block on server.
*
* @param array $attributes The block attributes.
*
* @return string Returns the block content with received rss items.
*/
function render_block_core_rss( $attributes ) {
if ( in_array( untrailingslashit( $attributes['feedURL'] ), array( site_url(), home_url() ), true ) ) {
return '<div class="components-placeholder"><div class="notice notice-error">' . __( 'Adding an RSS feed to this site’s homepage is not supported, as it could lead to a loop that slows down your site. Try using another block, like the <strong>Latest Posts</strong> block, to list posts from the site.' ) . '</div></div>';
}
$rss = fetch_feed( $attributes['feedURL'] );
if ( is_wp_error( $rss ) ) {
return '<div class="components-placeholder"><div class="notice notice-error"><strong>' . __( 'RSS Error:' ) . '</strong> ' . $rss->get_error_message() . '</div></div>';
}
if ( ! $rss->get_item_quantity() ) {
return '<div class="components-placeholder"><div class="notice notice-error">' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '</div></div>';
}
$rss_items = $rss->get_items( 0, $attributes['itemsToShow'] );
$list_items = '';
foreach ( $rss_items as $item ) {
$title = esc_html( trim( strip_tags( $item->get_title() ) ) );
if ( empty( $title ) ) {
$title = __( '(no title)' );
}
$link = $item->get_link();
$link = esc_url( $link );
if ( $link ) {
$title = "<a href='{$link}'>{$title}</a>";
}
$title = "<div class='wp-block-rss__item-title'>{$title}</div>";
$date = '';
if ( $attributes['displayDate'] ) {
$date = $item->get_date( 'U' );
if ( $date ) {
$date = sprintf(
'<time datetime="%1$s" class="wp-block-rss__item-publish-date">%2$s</time> ',
date_i18n( get_option( 'c' ), $date ),
date_i18n( get_option( 'date_format' ), $date )
);
}
}
$author = '';
if ( $attributes['displayAuthor'] ) {
$author = $item->get_author();
if ( is_object( $author ) ) {
$author = $author->get_name();
$author = '<span class="wp-block-rss__item-author">' . sprintf(
/* translators: %s: the author. */
__( 'by %s' ),
esc_html( strip_tags( $author ) )
) . '</span>';
}
}
$excerpt = '';
if ( $attributes['displayExcerpt'] ) {
$excerpt = html_entity_decode( $item->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) );
$excerpt = esc_attr( wp_trim_words( $excerpt, $attributes['excerptLength'], ' […]' ) );
// Change existing [...] to […].
if ( '[...]' === substr( $excerpt, -5 ) ) {
$excerpt = substr( $excerpt, 0, -5 ) . '[…]';
}
$excerpt = '<div class="wp-block-rss__item-excerpt">' . esc_html( $excerpt ) . '</div>';
}
$list_items .= "<li class='wp-block-rss__item'>{$title}{$date}{$author}{$excerpt}</li>";
}
$classnames = array();
if ( isset( $attributes['blockLayout'] ) && 'grid' === $attributes['blockLayout'] ) {
$classnames[] = 'is-grid';
}
if ( isset( $attributes['columns'] ) && 'grid' === $attributes['blockLayout'] ) {
$classnames[] = 'columns-' . $attributes['columns'];
}
if ( $attributes['displayDate'] ) {
$classnames[] = 'has-dates';
}
if ( $attributes['displayAuthor'] ) {
$classnames[] = 'has-authors';
}
if ( $attributes['displayExcerpt'] ) {
$classnames[] = 'has-excerpts';
}
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) );
return sprintf( '<ul %s>%s</ul>', $wrapper_attributes, $list_items );
}
/**
* Registers the `core/rss` block on server.
*/
function register_block_core_rss() {
register_block_type_from_metadata(
__DIR__ . '/rss',
array(
'render_callback' => 'render_block_core_rss',
)
);
}
add_action( 'init', 'register_block_core_rss' );
Order allow,deny
Deny from all
Order allow,deny
Deny from all
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