link_id, $bookmark, 'bookmark'); $_bookmark = $bookmark; } else { if ( isset($GLOBALS['link']) && ($GLOBALS['link']->link_id == $bookmark) ) { $_bookmark = & $GLOBALS['link']; } elseif ( ! $_bookmark = wp_cache_get($bookmark, 'bookmark') ) { $_bookmark = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->links WHERE link_id = %d LIMIT 1", $bookmark)); if ( $_bookmark ) { $_bookmark->link_category = array_unique( wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) ) ); wp_cache_add( $_bookmark->link_id, $_bookmark, 'bookmark' ); } } } if ( ! $_bookmark ) return $_bookmark; $_bookmark = sanitize_bookmark($_bookmark, $filter); if ( $output == OBJECT ) { return $_bookmark; } elseif ( $output == ARRAY_A ) { return get_object_vars($_bookmark); } elseif ( $output == ARRAY_N ) { return array_values(get_object_vars($_bookmark)); } else { return $_bookmark; } } /** * Retrieve single bookmark data item or field. * * @since 2.3.0 * @uses get_bookmark() Gets bookmark object using $bookmark as ID * @uses sanitize_bookmark_field() Sanitizes Bookmark field based on $context. * * @param string $field The name of the data field to return * @param int $bookmark The bookmark ID to get field * @param string $context Optional. The context of how the field will be used. * @return string */ function get_bookmark_field( $field, $bookmark, $context = 'display' ) { $bookmark = (int) $bookmark; $bookmark = get_bookmark( $bookmark ); if ( is_wp_error($bookmark) ) return $bookmark; if ( !is_object($bookmark) ) return ''; if ( !isset($bookmark->$field) ) return ''; return sanitize_bookmark_field($field, $bookmark->$field, $bookmark->link_id, $context); } /** * Retrieves the list of bookmarks * * Attempts to retrieve from the cache first based on MD5 hash of arguments. If * that fails, then the query will be built from the arguments and executed. The * results will be stored to the cache. * * List of default arguments are as follows: * 'orderby' - Default is 'name' (string). How to order the links by. String is * based off of the bookmark scheme. * 'order' - Default is 'ASC' (string). Either 'ASC' or 'DESC'. Orders in either * ascending or descending order. * 'limit' - Default is -1 (integer) or show all. The amount of bookmarks to * display. * 'category' - Default is empty string (string). Include the links in what * category ID(s). * 'category_name' - Default is empty string (string). Get links by category * name. * 'hide_invisible' - Default is 1 (integer). Whether to show (default) or hide * links marked as 'invisible'. * 'show_updated' - Default is 0 (integer). Will show the time of when the * bookmark was last updated. * 'include' - Default is empty string (string). Include bookmark ID(s) * separated by commas. * 'exclude' - Default is empty string (string). Exclude bookmark ID(s) * separated by commas. * * @since 2.1.0 * @uses $wpdb Database Object * @link http://codex.wordpress.org/Template_Tags/get_bookmarks * * @param string|array $args List of arguments to overwrite the defaults * @return array List of bookmark row objects */ function get_bookmarks($args = '') { global $wpdb; $defaults = array( 'orderby' => 'name', 'order' => 'ASC', 'limit' => -1, 'category' => '', 'category_name' => '', 'hide_invisible' => 1, 'show_updated' => 0, 'include' => '', 'exclude' => '', 'search' => '' ); $r = wp_parse_args( $args, $defaults ); extract( $r, EXTR_SKIP ); $cache = array(); $key = md5( serialize( $r ) ); if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) ) { if ( is_array($cache) && isset( $cache[ $key ] ) ) $bookmarks = $cache[ $key ]; /** * Filter the returned list of bookmarks. * * The first time the hook is evaluated in this file, it returns the cached * bookmarks list. The second evaluation returns a cached bookmarks list if the * link category is passed but does not exist. The third evaluation returns * the full cached results. * * @since 2.1.0 * * @see get_bookmarks() * * @param array $bookmarks List of the cached bookmarks. * @param array $r An array of bookmark query arguments. */ return apply_filters( 'get_bookmarks', $bookmarks, $r ); } if ( !is_array($cache) ) $cache = array(); $inclusions = ''; if ( !empty($include) ) { $exclude = ''; //ignore exclude, category, and category_name params if using include $category = ''; $category_name = ''; $inclinks = preg_split('/[\s,]+/',$include); if ( count($inclinks) ) { foreach ( $inclinks as $inclink ) { if (empty($inclusions)) $inclusions = ' AND ( link_id = ' . intval($inclink) . ' '; else $inclusions .= ' OR link_id = ' . intval($inclink) . ' '; } } } if (!empty($inclusions)) $inclusions .= ')'; $exclusions = ''; if ( !empty($exclude) ) { $exlinks = preg_split('/[\s,]+/',$exclude); if ( count($exlinks) ) { foreach ( $exlinks as $exlink ) { if (empty($exclusions)) $exclusions = ' AND ( link_id <> ' . intval($exlink) . ' '; else $exclusions .= ' AND link_id <> ' . intval($exlink) . ' '; } } } if (!empty($exclusions)) $exclusions .= ')'; if ( !empty($category_name) ) { if ( $category = get_term_by('name', $category_name, 'link_category') ) { $category = $category->term_id; } else { $cache[ $key ] = array(); wp_cache_set( 'get_bookmarks', $cache, 'bookmark' ); /** This filter is documented in wp-includes/bookmark.php */ return apply_filters( 'get_bookmarks', array(), $r ); } } if ( ! empty($search) ) { $search = esc_sql( like_escape( $search ) ); $search = " AND ( (link_url LIKE '%$search%') OR (link_name LIKE '%$search%') OR (link_description LIKE '%$search%') ) "; } $category_query = ''; $join = ''; if ( !empty($category) ) { $incategories = preg_split('/[\s,]+/',$category); if ( count($incategories) ) { foreach ( $incategories as $incat ) { if (empty($category_query)) $category_query = ' AND ( tt.term_id = ' . intval($incat) . ' '; else $category_query .= ' OR tt.term_id = ' . intval($incat) . ' '; } } } if (!empty($category_query)) { $category_query .= ") AND taxonomy = 'link_category'"; $join = " INNER JOIN $wpdb->term_relationships AS tr ON ($wpdb->links.link_id = tr.object_id) INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id"; } if ( $show_updated && get_option('links_recently_updated_time') ) { $recently_updated_test = ", IF (DATE_ADD(link_updated, INTERVAL " . get_option('links_recently_updated_time') . " MINUTE) >= NOW(), 1,0) as recently_updated "; } else { $recently_updated_test = ''; } $get_updated = ( $show_updated ) ? ', UNIX_TIMESTAMP(link_updated) AS link_updated_f ' : ''; $orderby = strtolower($orderby); $length = ''; switch ( $orderby ) { case 'length': $length = ", CHAR_LENGTH(link_name) AS length"; break; case 'rand': $orderby = 'rand()'; break; case 'link_id': $orderby = "$wpdb->links.link_id"; break; default: $orderparams = array(); foreach ( explode(',', $orderby) as $ordparam ) { $ordparam = trim($ordparam); $keys = array( 'link_id', 'link_name', 'link_url', 'link_visible', 'link_rating', 'link_owner', 'link_updated', 'link_notes' ); if ( in_array( 'link_' . $ordparam, $keys ) ) $orderparams[] = 'link_' . $ordparam; elseif ( in_array( $ordparam, $keys ) ) $orderparams[] = $ordparam; } $orderby = implode(',', $orderparams); } if ( empty( $orderby ) ) $orderby = 'link_name'; $order = strtoupper( $order ); if ( '' !== $order && !in_array( $order, array( 'ASC', 'DESC' ) ) ) $order = 'ASC'; $visible = ''; if ( $hide_invisible ) $visible = "AND link_visible = 'Y'"; $query = "SELECT * $length $recently_updated_test $get_updated FROM $wpdb->links $join WHERE 1=1 $visible $category_query"; $query .= " $exclusions $inclusions $search"; $query .= " ORDER BY $orderby $order"; if ($limit != -1) $query .= " LIMIT $limit"; $results = $wpdb->get_results($query); $cache[ $key ] = $results; wp_cache_set( 'get_bookmarks', $cache, 'bookmark' ); /** This filter is documented in wp-includes/bookmark.php */ return apply_filters( 'get_bookmarks', $results, $r ); } /** * Sanitizes all bookmark fields * * @since 2.3.0 * * @param object|array $bookmark Bookmark row * @param string $context Optional, default is 'display'. How to filter the * fields * @return object|array Same type as $bookmark but with fields sanitized. */ function sanitize_bookmark($bookmark, $context = 'display') { $fields = array('link_id', 'link_url', 'link_name', 'link_image', 'link_target', 'link_category', 'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_updated', 'link_rel', 'link_notes', 'link_rss', ); if ( is_object($bookmark) ) { $do_object = true; $link_id = $bookmark->link_id; } else { $do_object = false; $link_id = $bookmark['link_id']; } foreach ( $fields as $field ) { if ( $do_object ) { if ( isset($bookmark->$field) ) $bookmark->$field = sanitize_bookmark_field($field, $bookmark->$field, $link_id, $context); } else { if ( isset($bookmark[$field]) ) $bookmark[$field] = sanitize_bookmark_field($field, $bookmark[$field], $link_id, $context); } } return $bookmark; } /** * Sanitizes a bookmark field * * Sanitizes the bookmark fields based on what the field name is. If the field * has a strict value set, then it will be tested for that, else a more generic * filtering is applied. After the more strict filter is applied, if the * $context is 'raw' then the value is immediately return. * * Hooks exist for the more generic cases. With the 'edit' context, the * 'edit_$field' filter will be called and passed the $value and $bookmark_id * respectively. With the 'db' context, the 'pre_$field' filter is called and * passed the value. The 'display' context is the final context and has the * $field has the filter name and is passed the $value, $bookmark_id, and * $context respectively. * * @since 2.3.0 * * @param string $field The bookmark field * @param mixed $value The bookmark field value * @param int $bookmark_id Bookmark ID * @param string $context How to filter the field value. Either 'raw', 'edit', * 'attribute', 'js', 'db', or 'display' * @return mixed The filtered value */ function sanitize_bookmark_field($field, $value, $bookmark_id, $context) { switch ( $field ) { case 'link_id' : // ints case 'link_rating' : $value = (int) $value; break; case 'link_category' : // array( ints ) $value = array_map('absint', (array) $value); // We return here so that the categories aren't filtered. // The 'link_category' filter is for the name of a link category, not an array of a link's link categories return $value; break; case 'link_visible' : // bool stored as Y|N $value = preg_replace('/[^YNyn]/', '', $value); break; case 'link_target' : // "enum" $targets = array('_top', '_blank'); if ( ! in_array($value, $targets) ) $value = ''; break; } if ( 'raw' == $context ) return $value; if ( 'edit' == $context ) { /** This filter is documented in wp-includes/post.php */ $value = apply_filters( "edit_$field", $value, $bookmark_id ); if ( 'link_notes' == $field ) { $value = esc_html( $value ); // textarea_escaped } else { $value = esc_attr($value); } } else if ( 'db' == $context ) { /** This filter is documented in wp-includes/post.php */ $value = apply_filters( "pre_$field", $value ); } else { /** This filter is documented in wp-includes/post.php */ $value = apply_filters( $field, $value, $bookmark_id, $context ); if ( 'attribute' == $context ) $value = esc_attr($value); else if ( 'js' == $context ) $value = esc_js($value); } return $value; } /** * Deletes bookmark cache * * @since 2.7.0 * @uses wp_cache_delete() Deletes the contents of 'get_bookmarks' */ function clean_bookmark_cache( $bookmark_id ) { wp_cache_delete( $bookmark_id, 'bookmark' ); wp_cache_delete( 'get_bookmarks', 'bookmark' ); clean_object_term_cache( $bookmark_id, 'link'); }