- if ( isset($wp_filter[$tag]) )
- ksort( $wp_filter[$tag] );
-}
-
-function apply_filters($tag, $string) {
- global $wp_filter;
-
- $args = array_slice(func_get_args(), 2);
-
- merge_filters($tag);
-
- if ( !isset($wp_filter[$tag]) ) {
- return $string;
- }
- foreach ($wp_filter[$tag] as $priority => $functions) {
- if ( !is_null($functions) ) {
- foreach($functions as $function) {
-
- $all_args = array_merge(array($string), $args);
- $function_name = $function['function'];
- $accepted_args = $function['accepted_args'];
-
- if ( $accepted_args == 1 )
- $the_args = array($string);
- elseif ( $accepted_args > 1 )
- $the_args = array_slice($all_args, 0, $accepted_args);
- elseif ( $accepted_args == 0 )
- $the_args = NULL;
- else
- $the_args = $all_args;
-
- $string = call_user_func_array($function_name, $the_args);
- }
- }
- }
- return $string;
-}
-
-function add_filter($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
- global $wp_filter;
-
- // check that we don't already have the same filter at the same priority
- if ( isset($wp_filter[$tag]["$priority"]) ) {
- foreach($wp_filter[$tag]["$priority"] as $filter) {
- // uncomment if we want to match function AND accepted_args
- // if ( $filter == array($function, $accepted_args) ) {
- if ( $filter['function'] == $function_to_add ) {
- return true;
- }
- }
- }
-
- // So the format is wp_filter['tag']['array of priorities']['array of ['array (functions, accepted_args)]']
- $wp_filter[$tag]["$priority"][] = array('function'=>$function_to_add, 'accepted_args'=>$accepted_args);
- return true;
-}
-
-function remove_filter($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
- global $wp_filter;
-
- // rebuild the list of filters
- if ( isset($wp_filter[$tag]["$priority"]) ) {
- $new_function_list = array();
- foreach($wp_filter[$tag]["$priority"] as $filter) {
- if ( $filter['function'] != $function_to_remove ) {
- $new_function_list[] = $filter;
- }
- }
- $wp_filter[$tag]["$priority"] = $new_function_list;
- }
- return true;
-}
-
-// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content
-
-function do_action($tag, $arg = '') {
- global $wp_filter;
- $extra_args = array_slice(func_get_args(), 2);
- if ( is_array($arg) )
- $args = array_merge($arg, $extra_args);
- else
- $args = array_merge(array($arg), $extra_args);
-
- merge_filters($tag);
-
- if ( !isset($wp_filter[$tag]) ) {
- return;
- }
- foreach ($wp_filter[$tag] as $priority => $functions) {
- if ( !is_null($functions) ) {
- foreach($functions as $function) {
-
- $function_name = $function['function'];
- $accepted_args = $function['accepted_args'];
-
- if ( $accepted_args == 1 ) {
- if ( is_array($arg) )
- $the_args = $arg;
- else
- $the_args = array($arg);
- } elseif ( $accepted_args > 1 ) {
- $the_args = array_slice($args, 0, $accepted_args);
- } elseif ( $accepted_args == 0 ) {
- $the_args = NULL;
- } else {
- $the_args = $args;
- }
-
- $string = call_user_func_array($function_name, $the_args);
- }
- }
- }
-}
-
-function add_action($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
- add_filter($tag, $function_to_add, $priority, $accepted_args);
-}
-
-function remove_action($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
- remove_filter($tag, $function_to_remove, $priority, $accepted_args);
-}
-
-function get_page_uri($page_id) {
- $page = get_page($page_id);
- $uri = urldecode($page->post_name);
-
- // A page cannot be it's own parent.
- if ( $page->post_parent == $page->ID )
- return $uri;
-
- while ($page->post_parent != 0) {
- $page = get_page($page->post_parent);
- $uri = urldecode($page->post_name) . "/" . $uri;
- }
-
- return $uri;
-}
-
-function get_posts($args) {
- global $wpdb;
- parse_str($args, $r);
- if ( !isset($r['numberposts']) )
- $r['numberposts'] = 5;
- if ( !isset($r['offset']) )
- $r['offset'] = 0;
- if ( !isset($r['category']) )
- $r['category'] = '';
- if ( !isset($r['orderby']) )
- $r['orderby'] = 'post_date';
- if ( !isset($r['order']) )
- $r['order'] = 'DESC';
-
- $now = current_time('mysql');
-
- $posts = $wpdb->get_results(
- "SELECT DISTINCT * FROM $wpdb->posts " .
- ( empty( $r['category'] ) ? "" : ", $wpdb->post2cat " ) .
- " WHERE post_date <= '$now' AND (post_status = 'publish') ".
- ( empty( $r['category'] ) ? "" : "AND $wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $r['category']. " " ) .
- " GROUP BY $wpdb->posts.ID ORDER BY " . $r['orderby'] . " " . $r['order'] . " LIMIT " . $r['offset'] . ',' . $r['numberposts'] );
-
- update_post_caches($posts);
-
- return $posts;
-}
-
-function &query_posts($query) {
- global $wp_query;
- return $wp_query->query($query);
-}
-
-function update_post_cache(&$posts) {
- global $post_cache;
-
- if ( !$posts )
- return;
-
- for ($i = 0; $i < count($posts); $i++) {
- $post_cache[$posts[$i]->ID] = &$posts[$i];
- }
-}
-
-function clean_post_cache($id) {
- global $post_cache;
-
- if ( isset( $post_cache[$id] ) )
- unset( $post_cache[$id] );
-}
-
-function update_page_cache(&$pages) {
- global $page_cache;
-
- if ( !$pages )
- return;
-
- for ($i = 0; $i < count($pages); $i++) {
- $page_cache[$pages[$i]->ID] = &$pages[$i];
- wp_cache_add($pages[$i]->ID, $pages[$i], 'pages');
- }
-}
-
-
-function clean_page_cache($id) {
- global $page_cache;
-
- if ( isset( $page_cache[$id] ) )
- unset( $page_cache[$id] );
-}
-
-function update_post_category_cache($post_ids) {
- global $wpdb, $category_cache;
-
- if ( empty($post_ids) )
- return;
-
- if ( is_array($post_ids) )
- $post_ids = implode(',', $post_ids);
-
- $dogs = $wpdb->get_results("SELECT post_id, category_id FROM $wpdb->post2cat WHERE post_id IN ($post_ids)");
-
- if ( empty($dogs) )
- return;
-
- foreach ($dogs as $catt)
- $category_cache[$catt->post_id][$catt->category_id] = &get_category($catt->category_id);
-}
-
-function update_post_caches(&$posts) {
- global $post_cache, $category_cache, $comment_count_cache, $post_meta_cache;
- global $wpdb;
-
- // No point in doing all this work if we didn't match any posts.
- if ( !$posts )
- return;
-
- // Get the categories for all the posts
- for ($i = 0; $i < count($posts); $i++) {
- $post_id_array[] = $posts[$i]->ID;
- $post_cache[$posts[$i]->ID] = &$posts[$i];
- $comment_count_cache[$posts[$i]->ID] = $posts[$i]->comment_count;
- }
-
- $post_id_list = implode(',', $post_id_array);
-
- update_post_category_cache($post_id_list);
-
- // Get post-meta info
- if ( $meta_list = $wpdb->get_results("SELECT post_id, meta_key, meta_value FROM $wpdb->postmeta WHERE post_id IN($post_id_list) ORDER BY post_id, meta_key", ARRAY_A) ) {
- // Change from flat structure to hierarchical:
- $post_meta_cache = array();
- foreach ($meta_list as $metarow) {
- $mpid = $metarow['post_id'];
- $mkey = $metarow['meta_key'];
- $mval = $metarow['meta_value'];
-
- // Force subkeys to be array type:
- if ( !isset($post_meta_cache[$mpid]) || !is_array($post_meta_cache[$mpid]) )
- $post_meta_cache[$mpid] = array();
- if ( !isset($post_meta_cache[$mpid]["$mkey"]) || !is_array($post_meta_cache[$mpid]["$mkey"]) )
- $post_meta_cache[$mpid]["$mkey"] = array();
-
- // Add a value to the current pid/key:
- $post_meta_cache[$mpid][$mkey][] = $mval;
- }
- }
-}
-
-function update_category_cache() {
- return true;
-}
-
-function wp_head() {
- do_action('wp_head');
-}
-
-function wp_footer() {
- do_action('wp_footer');
-}
-
-function is_single ($post = '') {
- global $wp_query;
-
- if ( !$wp_query->is_single )
- return false;
-
- if ( empty( $post) )
- return true;
-
- $post_obj = $wp_query->get_queried_object();
-
- if ( $post == $post_obj->ID )
- return true;
- elseif ( $post == $post_obj->post_title )
- return true;
- elseif ( $post == $post_obj->post_name )
- return true;
-
- return false;
-}
-
-function is_page ($page = '') {
- global $wp_query;
-
- if ( !$wp_query->is_page )
- return false;
-
- if ( empty($page) )
- return true;
-
- $page_obj = $wp_query->get_queried_object();
-
- if ( $page == $page_obj->ID )
- return true;
- elseif ( $page == $page_obj->post_title )
- return true;
- else if ( $page == $page_obj->post_name )
- return true;
-
- return false;
-}
-
-function is_attachment () {
- global $wp_query;
-
- return $wp_query->is_attachment;
-}
-
-function is_preview() {
- global $wp_query;
-
- return $wp_query->is_preview;
-}
-
-function is_archive () {
- global $wp_query;
-
- return $wp_query->is_archive;
-}
-
-function is_date () {
- global $wp_query;
-
- return $wp_query->is_date;
-}
-
-function is_year () {
- global $wp_query;
-
- return $wp_query->is_year;
-}
-
-function is_month () {
- global $wp_query;
-
- return $wp_query->is_month;
-}
-
-function is_day () {
- global $wp_query;
-
- return $wp_query->is_day;
-}
-
-function is_time () {
- global $wp_query;
-
- return $wp_query->is_time;
-}
-
-function is_author ($author = '') {
- global $wp_query;
-
- if ( !$wp_query->is_author )
- return false;
-
- if ( empty($author) )
- return true;
-
- $author_obj = $wp_query->get_queried_object();
-
- if ( $author == $author_obj->ID )
- return true;
- elseif ( $author == $author_obj->nickname )
- return true;
- elseif ( $author == $author_obj->user_nicename )
- return true;
-
- return false;
-}
-
-function is_category ($category = '') {
- global $wp_query;
-
- if ( !$wp_query->is_category )
- return false;
-
- if ( empty($category) )
- return true;
-
- $cat_obj = $wp_query->get_queried_object();
-
- if ( $category == $cat_obj->cat_ID )
- return true;
- else if ( $category == $cat_obj->cat_name )
- return true;
- elseif ( $category == $cat_obj->category_nicename )
- return true;
-
- return false;
-}
-
-function is_search () {
- global $wp_query;
-
- return $wp_query->is_search;
-}
-
-function is_feed () {
- global $wp_query;
-
- return $wp_query->is_feed;
-}
-
-function is_trackback () {
- global $wp_query;
-
- return $wp_query->is_trackback;
-}
-
-function is_admin () {
- global $wp_query;
-
- return ( $wp_query->is_admin || strstr($_SERVER['REQUEST_URI'], 'wp-admin/') );
-}
-
-function is_home () {
- global $wp_query;
-
- return $wp_query->is_home;
-}
-
-function is_404 () {
- global $wp_query;
-
- return $wp_query->is_404;
-}
-
-function is_comments_popup () {
- global $wp_query;
-
- return $wp_query->is_comments_popup;
-}
-
-function is_paged () {
- global $wp_query;
-
- return $wp_query->is_paged;
-}
-
-function in_the_loop() {
- global $wp_query;
-
- return $wp_query->in_the_loop;
-}
-
-function get_query_var($var) {
- global $wp_query;
-
- return $wp_query->get($var);
-}
-
-function have_posts() {
- global $wp_query;
-
- return $wp_query->have_posts();
-}
-
-function rewind_posts() {
- global $wp_query;
-
- return $wp_query->rewind_posts();
-}
-
-function the_post() {
- global $wp_query;
-
- $wp_query->the_post();
-}
-
-function get_theme_root() {
- return apply_filters('theme_root', ABSPATH . "wp-content/themes");
-}
-
-function get_theme_root_uri() {
- return apply_filters('theme_root_uri', get_settings('siteurl') . "/wp-content/themes", get_settings('siteurl'));
-}
-
-function get_stylesheet() {
- return apply_filters('stylesheet', get_settings('stylesheet'));
-}
-
-function get_stylesheet_directory() {
- $stylesheet = get_stylesheet();
- $stylesheet_dir = get_theme_root() . "/$stylesheet";
- return apply_filters('stylesheet_directory', $stylesheet_dir, $stylesheet);
-}
-
-function get_stylesheet_directory_uri() {
- $stylesheet = rawurlencode( get_stylesheet() );
- $stylesheet_dir_uri = get_theme_root_uri() . "/$stylesheet";
- return apply_filters('stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet);
-}
-
-function get_stylesheet_uri() {
- $stylesheet_dir_uri = get_stylesheet_directory_uri();
- $stylesheet_uri = $stylesheet_dir_uri . "/style.css";
- return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
-}
-
-function get_template() {
- $template = get_settings('template');
- if (!file_exists(get_theme_root() . "/$template")) { //works for dirs too
- update_option('template', 'default');
- update_option('stylesheet', 'default');
- }
- return apply_filters('template', get_settings('template'));
-}
-
-function get_template_directory() {
- $template = get_template();
- $template_dir = get_theme_root() . "/$template";
- return apply_filters('template_directory', $template_dir, $template);
-}
-
-function get_template_directory_uri() {
- $template = get_template();
- $template_dir_uri = get_theme_root_uri() . "/$template";
- return apply_filters('template_directory_uri', $template_dir_uri, $template);
-}
-
-function get_theme_data($theme_file) {
- $theme_data = implode('', file($theme_file));
- preg_match("|Theme Name:(.*)|i", $theme_data, $theme_name);
- preg_match("|Theme URI:(.*)|i", $theme_data, $theme_uri);
- preg_match("|Description:(.*)|i", $theme_data, $description);
- preg_match("|Author:(.*)|i", $theme_data, $author_name);
- preg_match("|Author URI:(.*)|i", $theme_data, $author_uri);
- preg_match("|Template:(.*)|i", $theme_data, $template);
- if ( preg_match("|Version:(.*)|i", $theme_data, $version) )
- $version = trim($version[1]);
- else
- $version ='';
- if ( preg_match("|Status:(.*)|i", $theme_data, $status) )
- $status = trim($status[1]);
- else
- $status = 'publish';
-
- $description = wptexturize(trim($description[1]));
-
- $name = $theme_name[1];
- $name = trim($name);
- $theme = $name;
-
- if ( '' == $author_uri[1] ) {
- $author = trim($author_name[1]);
- } else {
- $author = '<a href="' . trim($author_uri[1]) . '" title="' . __('Visit author homepage') . '">' . trim($author_name[1]) . '</a>';
- }
-
- return array('Name' => $name, 'Title' => $theme, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template[1], 'Status' => $status);
-}
-
-function get_themes() {
- global $wp_themes;
- global $wp_broken_themes;
-
- if ( isset($wp_themes) )
- return $wp_themes;
-
- $themes = array();
- $wp_broken_themes = array();
- $theme_root = get_theme_root();
- $theme_loc = str_replace(ABSPATH, '', $theme_root);
+ return $filename;
+}
+
+/**
+ * Create a file in the upload folder with given content.
+ *
+ * If there is an error, then the key 'error' will exist with the error message.
+ * If success, then the key 'file' will have the unique file path, the 'url' key
+ * will have the link to the new file. and the 'error' key will be set to false.
+ *
+ * This function will not move an uploaded file to the upload folder. It will
+ * create a new file with the content in $bits parameter. If you move the upload
+ * file, read the content of the uploaded file, and then you can give the
+ * filename and content to this function, which will add it to the upload
+ * folder.
+ *
+ * The permissions will be set on the new file automatically by this function.
+ *
+ * @since 2.0.0
+ *
+ * @param string $name
+ * @param null $deprecated Never used. Set to null.
+ * @param mixed $bits File content
+ * @param string $time Optional. Time formatted in 'yyyy/mm'.
+ * @return array
+ */
+function wp_upload_bits( $name, $deprecated, $bits, $time = null ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.0' );
+
+ if ( empty( $name ) )
+ return array( 'error' => __( 'Empty filename' ) );
+
+ $wp_filetype = wp_check_filetype( $name );
+ if ( ! $wp_filetype['ext'] && ! current_user_can( 'unfiltered_upload' ) )
+ return array( 'error' => __( 'Invalid file type' ) );
+
+ $upload = wp_upload_dir( $time );
+
+ if ( $upload['error'] !== false )
+ return $upload;
+
+ $upload_bits_error = apply_filters( 'wp_upload_bits', array( 'name' => $name, 'bits' => $bits, 'time' => $time ) );
+ if ( !is_array( $upload_bits_error ) ) {
+ $upload[ 'error' ] = $upload_bits_error;
+ return $upload;
+ }
+
+ $filename = wp_unique_filename( $upload['path'], $name );
+
+ $new_file = $upload['path'] . "/$filename";
+ if ( ! wp_mkdir_p( dirname( $new_file ) ) ) {
+ if ( 0 === strpos( $upload['basedir'], ABSPATH ) )
+ $error_path = str_replace( ABSPATH, '', $upload['basedir'] ) . $upload['subdir'];
+ else
+ $error_path = basename( $upload['basedir'] ) . $upload['subdir'];
+
+ $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $error_path );
+ return array( 'error' => $message );
+ }
+
+ $ifp = @ fopen( $new_file, 'wb' );
+ if ( ! $ifp )
+ return array( 'error' => sprintf( __( 'Could not write file %s' ), $new_file ) );
+
+ @fwrite( $ifp, $bits );
+ fclose( $ifp );
+ clearstatcache();
+
+ // Set correct file permissions
+ $stat = @ stat( dirname( $new_file ) );
+ $perms = $stat['mode'] & 0007777;
+ $perms = $perms & 0000666;
+ @ chmod( $new_file, $perms );
+ clearstatcache();
+
+ // Compute the URL
+ $url = $upload['url'] . "/$filename";
+
+ return array( 'file' => $new_file, 'url' => $url, 'error' => false );
+}
+
+/**
+ * Retrieve the file type based on the extension name.
+ *
+ * @package WordPress
+ * @since 2.5.0
+ * @uses apply_filters() Calls 'ext2type' hook on default supported types.
+ *
+ * @param string $ext The extension to search.
+ * @return string|null The file type, example: audio, video, document, spreadsheet, etc. Null if not found.
+ */
+function wp_ext2type( $ext ) {
+ $ext2type = apply_filters( 'ext2type', array(
+ 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
+ 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ),
+ 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ),
+ 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsm', 'xlsb' ),
+ 'interactive' => array( 'swf', 'key', 'ppt', 'pptx', 'pptm', 'pps', 'ppsx', 'ppsm', 'sldx', 'sldm', 'odp' ),
+ 'text' => array( 'asc', 'csv', 'tsv', 'txt' ),
+ 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ),
+ 'code' => array( 'css', 'htm', 'html', 'php', 'js' ),
+ ));
+ foreach ( $ext2type as $type => $exts )
+ if ( in_array( $ext, $exts ) )
+ return $type;
+}
+
+/**
+ * Retrieve the file type from the file name.
+ *
+ * You can optionally define the mime array, if needed.
+ *
+ * @since 2.0.4
+ *
+ * @param string $filename File name or path.
+ * @param array $mimes Optional. Key is the file extension with value as the mime type.
+ * @return array Values with extension first and mime type.
+ */
+function wp_check_filetype( $filename, $mimes = null ) {
+ if ( empty($mimes) )
+ $mimes = get_allowed_mime_types();
+ $type = false;
+ $ext = false;
+
+ foreach ( $mimes as $ext_preg => $mime_match ) {
+ $ext_preg = '!\.(' . $ext_preg . ')$!i';
+ if ( preg_match( $ext_preg, $filename, $ext_matches ) ) {
+ $type = $mime_match;
+ $ext = $ext_matches[1];
+ break;
+ }
+ }