/** * Pings back the links found in a post. * * @since 0.71 * * @global string $wp_version * * @param string $content Post content to check for links. * @param int $post_ID Post ID. */ function pingback($content, $post_ID) { global $wp_version; include_once ABSPATH . WPINC . '/class-IXR.php'; include_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php'; // original code by Mort (http://mort.mine.nu:8080) $post_links = array(); $pung = get_pung($post_ID); // Step 1 // Parsing the post, external links (if any) are stored in the $post_links array $post_links_temp = wp_extract_urls($content); // Step 2. // Walking thru the links array // first we get rid of links pointing to sites, not to specific files // Example: // http://dummy-weblog.org // http://dummy-weblog.org/ // http://dummy-weblog.org/post.php // We don't wanna ping first and second types, even if they have a valid <link/> foreach ((array) $post_links_temp as $link_test) { if (!in_array($link_test, $pung) && url_to_postid($link_test) != $post_ID && !is_local_attachment($link_test)) { // Also, let's never ping local attachments. if ($test = @parse_url($link_test)) { if (isset($test['query'])) { $post_links[] = $link_test; } elseif (isset($test['path']) && $test['path'] != '/' && $test['path'] != '') { $post_links[] = $link_test; } } } } $post_links = array_unique($post_links); /** * Fires just before pinging back links found in a post. * * @since 2.0.0 * * @param array &$post_links An array of post links to be checked, passed by reference. * @param array &$pung Whether a link has already been pinged, passed by reference. * @param int $post_ID The post ID. */ do_action_ref_array('pre_ping', array(&$post_links, &$pung, $post_ID)); foreach ((array) $post_links as $pagelinkedto) { $pingback_server_url = discover_pingback_server_uri($pagelinkedto); if ($pingback_server_url) { @set_time_limit(60); // Now, the RPC call $pagelinkedfrom = get_permalink($post_ID); // using a timeout of 3 seconds should be enough to cover slow servers $client = new WP_HTTP_IXR_Client($pingback_server_url); $client->timeout = 3; /** * Filter the user agent sent when pinging-back a URL. * * @since 2.9.0 * * @param string $concat_useragent The user agent concatenated with ' -- WordPress/' * and the WordPress version. * @param string $useragent The useragent. * @param string $pingback_server_url The server URL being linked to. * @param string $pagelinkedto URL of page linked to. * @param string $pagelinkedfrom URL of page linked from. */ $client->useragent = apply_filters('pingback_useragent', $client->useragent . ' -- WordPress/' . $wp_version, $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom); // when set to true, this outputs debug messages by itself $client->debug = false; if ($client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || isset($client->error->code) && 48 == $client->error->code) { // Already registered add_ping($post_ID, $pagelinkedto); } } } }
function set_endpoint($uri = false) { $old_endpoint = $this->endpoint; if ($new_endpoint = discover_pingback_server_uri($uri)) { $this->endpoint = $new_endpoint; } return $old_endpoint; }
function pingback($content, $post_ID) { global $wp_version, $wpdb; include_once ABSPATH . WPINC . '/class-IXR.php'; // original code by Mort (http://mort.mine.nu:8080) $log = debug_fopen(ABSPATH . '/pingback.log', 'a'); $post_links = array(); debug_fwrite($log, 'BEGIN ' . date('YmdHis', time()) . "\n"); $pung = get_pung($post_ID); // Variables $ltrs = '\\w'; $gunk = '/#~:.?+=&%@!\\-'; $punc = '.:?\\-'; $any = $ltrs . $gunk . $punc; // Step 1 // Parsing the post, external links (if any) are stored in the $post_links array // This regexp comes straight from phpfreaks.com // http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php preg_match_all("{\\b http : [{$any}] +? (?= [{$punc}] * [^{$any}] | \$)}x", $content, $post_links_temp); // Debug debug_fwrite($log, 'Post contents:'); debug_fwrite($log, $content . "\n"); // Step 2. // Walking thru the links array // first we get rid of links pointing to sites, not to specific files // Example: // http://dummy-weblog.org // http://dummy-weblog.org/ // http://dummy-weblog.org/post.php // We don't wanna ping first and second types, even if they have a valid <link/> foreach ($post_links_temp[0] as $link_test) { if (!in_array($link_test, $pung) && url_to_postid($link_test) != $post_ID && !is_local_attachment($link_test)) { // Also, let's never ping local attachments. $test = parse_url($link_test); if (isset($test['query'])) { $post_links[] = $link_test; } elseif ($test['path'] != '/' && $test['path'] != '') { $post_links[] = $link_test; } do_action('pre_ping', array(&$post_links, &$pung)); } } foreach ($post_links as $pagelinkedto) { debug_fwrite($log, "Processing -- {$pagelinkedto}\n"); $pingback_server_url = discover_pingback_server_uri($pagelinkedto, 2048); if ($pingback_server_url) { @set_time_limit(60); // Now, the RPC call debug_fwrite($log, "Page Linked To: {$pagelinkedto} \n"); debug_fwrite($log, 'Page Linked From: '); $pagelinkedfrom = get_permalink($post_ID); debug_fwrite($log, $pagelinkedfrom . "\n"); // using a timeout of 3 seconds should be enough to cover slow servers $client = new IXR_Client($pingback_server_url); $client->timeout = 3; $client->useragent .= ' -- WordPress/' . $wp_version; // when set to true, this outputs debug messages by itself $client->debug = false; if ($client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto)) { add_ping($post_ID, $pagelinkedto); } else { debug_fwrite($log, "Error.\n Fault code: " . $client->getErrorCode() . " : " . $client->getErrorMessage() . "\n"); } } } debug_fwrite($log, "\nEND: " . time() . "\n****************************\n"); debug_fclose($log); }
/** * Pings back the links found in a post. * * @since 0.71 * @uses $wp_version * @uses IXR_Client * * @param string $content Post content to check for links. * @param int $post_ID Post ID. */ function pingback($content, $post_ID) { global $wp_version; include_once ABSPATH . WPINC . '/class-IXR.php'; // original code by Mort (http://mort.mine.nu:8080) $post_links = array(); $pung = get_pung($post_ID); // Variables $ltrs = '\\w'; $gunk = '/#~:.?+=&%@!\\-'; $punc = '.:?\\-'; $any = $ltrs . $gunk . $punc; // Step 1 // Parsing the post, external links (if any) are stored in the $post_links array // This regexp comes straight from phpfreaks.com // http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php preg_match_all("{\\b http : [{$any}] +? (?= [{$punc}] * [^{$any}] | \$)}x", $content, $post_links_temp); // Step 2. // Walking thru the links array // first we get rid of links pointing to sites, not to specific files // Example: // http://dummy-weblog.org // http://dummy-weblog.org/ // http://dummy-weblog.org/post.php // We don't wanna ping first and second types, even if they have a valid <link/> foreach ((array) $post_links_temp[0] as $link_test) { if (!in_array($link_test, $pung) && url_to_postid($link_test) != $post_ID && !is_local_attachment($link_test)) { // Also, let's never ping local attachments. if ($test = @parse_url($link_test)) { if (isset($test['query'])) { $post_links[] = $link_test; } elseif ($test['path'] != '/' && $test['path'] != '') { $post_links[] = $link_test; } } } } do_action_ref_array('pre_ping', array(&$post_links, &$pung)); foreach ((array) $post_links as $pagelinkedto) { $pingback_server_url = discover_pingback_server_uri($pagelinkedto, 2048); if ($pingback_server_url) { @set_time_limit(60); // Now, the RPC call $pagelinkedfrom = get_permalink($post_ID); // using a timeout of 3 seconds should be enough to cover slow servers $client = new IXR_Client($pingback_server_url); $client->timeout = 3; $client->useragent .= ' -- WordPress/' . $wp_version; // when set to true, this outputs debug messages by itself $client->debug = false; if ($client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || isset($client->error->code) && 48 == $client->error->code) { // Already registered add_ping($post_ID, $pagelinkedto); } } } }