PHP discover_pingback_server_uri函数代码示例

/**
 * 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);
            }
        }
    }
}