r-a-y

<?php
/* IMPORTANT: edit settings in bp-oembed-config.php - no need to edit this file */
global $bp_oembed;

require_once(dirname( __FILE__ ) . '/bp-oembed-config.php');

if( !function_exists('parse_url_compat') ) {
    function parse_url_compat($url, $component=NULL){

        if(!$component) return parse_url($url);

        ## PHP 5
        if(phpversion() >= 5)
            return parse_url($url, $component);

        ## PHP 4
        $bits = parse_url($url);

        switch($component){
            case PHP_URL_SCHEME: return $bits['scheme'];
            case PHP_URL_HOST: return $bits['host'];
            case PHP_URL_PORT: return $bits['port'];
            case PHP_URL_USER: return $bits['user'];
            case PHP_URL_PASS: return $bits['pass'];
            case PHP_URL_PATH: return $bits['path'];
            case PHP_URL_QUERY: return $bits['query'];
            case PHP_URL_FRAGMENT: return $bits['fragment'];
        }

    }
}

// oembed for activity updates
if($bp_oembed['activity_updates'])
    add_filter('bp_get_activity_content_body','ray_bp_oembed', 9);

// oembed for activity comments
if($bp_oembed['activity_comments'])
    add_filter('bp_get_activity_content','ray_bp_oembed', 9);

// oembed for forum posts
if($bp_oembed['forum_posts'])
    add_filter('bp_get_the_topic_post_content','ray_bp_oembed', 9);

// whitelist hyperlinks
$bp_oembed['whitelist'][] = '<a ';
$bp_oembed['whitelist'][] = '">';
$bp_oembed['whitelist'][] = '<a>';

// whitelist BP domain
$bp_oembed['whitelist'][] = parse_url_compat(get_bloginfo('wpurl'), PHP_URL_HOST);

/* really stop editing! */

function ray_bp_oembed($content) {
    global $bp_oembed;

    // WP(MU) 2.9 oEmbed check
    if(!function_exists(wp_oembed_get))
        return $content;

    // match URLs - could use some work
//  preg_match_all( '@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', $content, $matches );
    preg_match_all('`.*?((http|https)://[\w#$&+,\/:;[email protected]]+)[^\w#$&+,\/:;[email protected]]*?`i', $content, $matches);

    // debug regex
    // print_r($matches[0]);

    // if there are no links to parse, return $content now!
    if(empty($matches[0]))
        return $content;

    $whitelist = $bp_oembed['whitelist'];

    for($i=0;$i<count($matches[0]);$i++) {
        $url = $matches[0][$i];

        // check url with whitelist, if url matches any whitelist item, skip from parsing
        foreach ($whitelist as $whitelist_item) {
            if (strpos($url,$whitelist_item) !== false) {
                continue 2;
            }
        }

        $cachekey = '_oembed_' . md5($url);

        // grab oEmbed cache depending on BP component
        // not pretty! only looking for activity updates or forum posts ATM
        if(!bp_get_activity_id() && bp_forums_is_installed_correctly()) {
            $cache = bb_get_postmeta(bp_get_the_topic_post_id(), $cachekey);
        }
        else {
            $cache = bp_activity_get_meta( bp_get_activity_id(), $cachekey);
        }

        // cache check - no oEmbed, but cached result, skip rest of loop
        if ( $url === $cache ) {
            continue;
        }

        // cache check - yes oEmbed
        if ( !empty($cache) ) {
            $replace = apply_filters( 'embed_oembed_html', $cache, $url, $attr );
        }
        // if no cache, let's start the show!
        else {
            // process url to oEmbed
            $oembed = wp_oembed_get($url); // returns true if link is oEmbed
            //$oembed = file_get_contents("http://autoembed.com/api/?url=".urlencode($url));

            if ($oembed) {
                $replace = apply_filters( 'embed_oembed_html', $oembed, $url, $attr );
                $replace = str_replace('
','',$replace); // fix Viddler line break in <object> tag
            }
            else {
                $replace = $url;
                // unlike WP's oEmbed, I cache the URL if not oEmbed-dable!
                // the URL is more useful in the DB than a string called {{unknown}} ;)
            }

            // save oEmbed cache depending on BP component
            // the same "not prettiness!"
            if(!bp_get_activity_id() && bp_forums_is_installed_correctly())
                bb_update_postmeta(bp_get_the_topic_post_id(), $cachekey, $replace);
            else
                bp_activity_update_meta( bp_get_activity_id(), $cachekey, $replace );
        }

        $content = str_replace($url, $replace, $content);
    }

    return $content;
}
?>