' . "\n"; } /** * Add rewrite rules for XRDS. * * @param object $wp_rewrite WP_Rewrite object */ function rewrite_rules($wp_rewrite) { $apml_rules = array( 'apml' => 'index.php?apml=1', ); $wp_rewrite->rules = $apml_rules + $wp_rewrite->rules; } /** * Add 'apml' as a valid query variables. * * @param array $vars * @return array */ function query_vars($vars) { $vars[] = 'apml'; return $vars; } /** * Print APML document if 'apml' query variable is present */ function parse_request() { global $wp_query, $wp; if( array_key_exists('apml', $wp->query_vars) ) { Apml::print_apml(); } } /** * Get the URL for the APML document, based on the blog's permalink settings. * * @return string APML document URL */ function apml_url() { global $wp_rewrite; $url = trailingslashit(get_option('home')); if ($wp_rewrite->using_permalinks()) { if ($wp_rewrite->using_index_permalinks()) { return $url . 'index.php/apml'; } else { return $url . 'apml'; } } else { return add_query_arg('apml', '1', $url); } } /** * */ function apml_add_profile($apml, $ProfileName, $ImplicitData, $ExplicitData) { if ($ImplicitData) { foreach($ImplicitData as $concept => $data) { if (is_array($apml[$ProfileName]['ImplicitData'][$concept])) { $apml[$ProfileName]['ImplicitData'][$concept] = array_merge($apml[$ProfileName]['ImplicitData'][$concept], $ImplicitData[$concept]); } else { $apml[$ProfileName]['ImplicitData'][$concept] = $ImplicitData[$concept]; } } } elseif ($ExplicitData) { foreach($ExplicitData as $concept => $data) { if (is_array($apml[$ProfileName]['ExplicitData'][$concept])) { $apml[$ProfileName]['ExplicitData'][$concept] = array_merge($apml[$ProfileName]['ExplicitData'][$concept], $ExplicitData[$concept]); } else { $apml[$ProfileName]['ExplicitData'][$concept] = $ExplicitData[$concept]; } } } return $apml; } /** * Generate APML-XML output * * @return string APML-XML output */ function generate_xml() { global $wp_version; $apml = array(); $apml = apply_filters('apml', $apml); $date = date('Y-m-d\Th:i:s'); $xml = ''."\n"; $xml .= ' '."\n"; $xml .= ' '."\n"; $xml .= ' wordpress/'.$wp_version.''."\n"; $xml .= ' '.$date.''."\n"; $xml .= ' '."\n"; $xml .= ' '."\n"; foreach ($apml as $name => $data) { $xml .= ' '."\n"; foreach ($data as $dataType => $dataConcepts) { $xml .= ' <'.$dataType.'>'."\n"; foreach ($dataConcepts as $conceptType => $values) { $xml .= ' <'.$conceptType.'>'."\n"; switch ($conceptType) { case "Concepts": foreach ($values as $value) { $xml .= ' '."\n"; } break; case "Sources": foreach ($values as $value) { $xml .= ' '."\n"; } break; } $xml .= ' '."\n"; } $xml .= ' '."\n"; } $xml .= ' '."\n"; } $xml .= ' '."\n"; $xml .= ''; return $xml; } /** * prints the APML-file * */ function print_apml() { header('Content-Type: application/xml+apml; charset=' . get_option('blog_charset'), true); //header('Content-Type: text/xml; charset=' . get_option('blog_charset'), true); echo ''."\n"; echo Apml::generate_xml(); exit; } /** * Contribute the WordPress Tags to the APML file * * @param array $apml current APML array * @return array updated APML array */ function apml_add_tags($apml) { global $wpdb; $date = date('Y-m-d\Th:i:s'); $url = get_bloginfo('url'); $tag_max = $wpdb->get_var("SELECT MAX(count) FROM $wpdb->term_taxonomy WHERE taxonomy = 'post_tag';"); $tags = array(); foreach (get_tags() as $tag) { $tags[] = array('key' => $tag->name, 'value' => (($tag->count*100)/$tag_max)/100, 'from' => $url, 'updated' => $date ); } return Apml::apml_add_profile($apml, 'tags', null, array('Concepts' => $tags)); } /** * Contribute the WordPress Categories to the APML file * * @param array $apml current APML array * @return array updated APML array */ function apml_add_categories($apml) { global $wpdb; $date = date('Y-m-d\Th:i:s'); $url = get_bloginfo('url'); $cat_max = $wpdb->get_var("SELECT MAX(count) FROM $wpdb->term_taxonomy WHERE taxonomy = 'category'"); $cats = array(); foreach (get_categories() as $cat) { $cats[] = array('key' => isset($cat->name) ? $cat->name : $cat->cat_name, 'value' => (isset($cat->count) ? $cat->count : $cat->category_count) *100/$cat_max/100, 'from' => $url, 'updated' => $date ); } return Apml::apml_add_profile($apml, 'categories', null, array('Concepts' => $cats)); } /** * Contribute the WordPress Links to the APML file * * @param array $apml current APML array * @return array updated APML array */ function apml_add_links($apml) { global $wpdb; $date = date('Y-m-d\Th:i:s'); $url = get_bloginfo('url'); $sql = "SELECT link_url, link_name, link_rel, link_rating FROM $wpdb->links WHERE link_visible = 'Y' ORDER BY link_name" ; $results = $wpdb->get_results($sql); $links = array(); foreach($results as $link) { $links[] = array('key' => $link->link_url, 'name' => $link->link_name, 'value' => $link->link_rating != 0 ? $link->link_rating*100/9/100 : "1.0", 'type' => 'text/html', 'from' => $url, 'updated' => $date ); } return Apml::apml_add_profile($apml, 'links', null, array('Sources' => $links)); } /** * Contribute the WordPress Feeds to the APML file * * @param array $apml current APML array * @return array updated APML array */ function apml_add_feeds($apml) { global $wpdb; $date = date('Y-m-d\Th:i:s'); $url = get_bloginfo('url'); $sql = "SELECT link_rss, link_name, link_rel, link_rating FROM $wpdb->links WHERE link_visible = 'Y' AND link_rss != '' ORDER BY link_name" ; $results = $wpdb->get_results($sql); $links = array(); foreach($results as $link) { $links[] = array('key' => $link->link_rss, 'name' => $link->link_name, 'value' => $link->link_rating != 0 ? $link->link_rating*100/9/100 : "1.0", 'type' => 'text/xml', 'from' => $url, 'updated' => $date ); } return Apml::apml_add_profile($apml, 'feeds', null, array('Sources' => $links)); } /** * Contribute the APML Service to XRDS-Simple. * * @param array $xrds current XRDS-Simple array * @return array updated XRDS-Simple array */ function xrds_apml_service($xrds) { global $wp_rewrite; $xrds = xrds_add_service($xrds, 'main', 'APML Service', array( 'Type' => array( array('content' => 'http://www.apml.org/apml-0.6') ), 'MediaType' => array( array('content' => 'application/xml+apml') ), 'URI' => array( array('content' => Apml::apml_url()) ), ) ); return $xrds; } } ?>