script_name = array_pop( $var_by_ref ); $this->app_base = site_url( $this->script_name . '/' ); $this->selectors = array( '@/service$@' => array('GET' => 'get_service'), '@/categories$@' => array('GET' => 'get_categories_xml'), '@/post/(\d+)$@' => array('GET' => 'get_post', 'PUT' => 'put_post', 'DELETE' => 'delete_post'), '@/posts/?(\d+)?$@' => array('GET' => 'get_posts', 'POST' => 'create_post'), '@/attachments/?(\d+)?$@' => array('GET' => 'get_attachment', 'POST' => 'create_attachment'), '@/attachment/file/(\d+)$@' => array('GET' => 'get_file', 'PUT' => 'put_file', 'DELETE' => 'delete_file'), '@/attachment/(\d+)$@' => array('GET' => 'get_attachment', 'PUT' => 'put_attachment', 'DELETE' => 'delete_attachment'), ); } /** * Handle ATOMPUB request. * * @since 2.2.0 */ function handle_request() { if ( !empty( $_SERVER['ORIG_PATH_INFO'] ) ) $path = $_SERVER['ORIG_PATH_INFO']; else $path = $_SERVER['PATH_INFO']; $method = $_SERVER['REQUEST_METHOD']; $this->process_conditionals(); //$this->process_conditionals(); // exception case for HEAD (treat exactly as GET, but don't output) if ($method == 'HEAD') { $this->do_output = false; $method = 'GET'; } // redirect to /service in case no path is found. if (strlen($path) == 0 || $path == '/') $this->redirect($this->get_service_url()); // check to see if AtomPub is enabled if ( !get_option( 'enable_app' ) ) $this->forbidden( sprintf( __( 'AtomPub services are disabled on this site. An admin user can enable them at %s' ), admin_url('options-writing.php') ) ); // dispatch foreach ( $this->selectors as $regex => $funcs ) { if ( preg_match($regex, $path, $matches) ) { if ( isset($funcs[$method]) ) { // authenticate regardless of the operation and set the current // user. each handler will decide if auth is required or not. if ( !$this->authenticate() ) { $this->auth_required('Credentials required.'); } array_shift($matches); call_user_func_array(array($this,$funcs[$method]), $matches); wp_die(); } else { // only allow what we have handlers for... $this->not_allowed(array_keys($funcs)); } } } // oops, nothing found $this->not_found(); } /** * Retrieve XML for ATOMPUB service. * * @since 2.2.0 */ function get_service() { if ( !current_user_can( 'edit_posts' ) ) $this->auth_required( __( 'Sorry, you do not have the right to access this site.' ) ); $entries_url = esc_attr($this->get_entries_url()); $categories_url = esc_attr($this->get_categories_url()); $media_url = esc_attr($this->get_attachments_url()); $accepted_media_types = ''; foreach ($this->media_content_types as $med) { $accepted_media_types = $accepted_media_types . "" . $med . ""; } $atom_prefix="atom"; $atom_blogname = get_bloginfo('name'); $service_doc = << <$atom_prefix:title>$atom_blogname Workspace <$atom_prefix:title>$atom_blogname Posts $this->ATOM_CONTENT_TYPE;type=entry <$atom_prefix:title>$atom_blogname Media $accepted_media_types EOD; $this->output($service_doc, $this->SERVICE_CONTENT_TYPE); } /** * Retrieve categories list in XML format. * * @since 2.2.0 */ function get_categories_xml() { if ( !current_user_can( 'edit_posts' ) ) $this->auth_required( __( 'Sorry, you do not have the right to access this site.' ) ); $home = esc_attr(get_bloginfo_rss('url')); $categories = ""; $cats = get_categories(array('hierarchical' => 0, 'hide_empty' => 0)); foreach ( (array) $cats as $cat ) { $categories .= " name) . "\" />\n"; } $output = << $categories EOD; $this->output($output, $this->CATEGORIES_CONTENT_TYPE); } /** * Create new post. * * @since 2.2.0 */ function create_post() { global $user_ID; $this->get_accepted_content_type($this->atom_content_types); $parser = new AtomParser(); if ( !$parser->parse() ) $this->client_error(); $entry = array_pop($parser->feed->entries); $catnames = array(); if ( !empty( $entry->categories ) ) { foreach ( $entry->categories as $cat ) { array_push($catnames, $cat["term"]); } } $wp_cats = get_categories(array('hide_empty' => false)); $post_category = array(); foreach ( $wp_cats as $cat ) { if ( in_array($cat->name, $catnames) ) array_push($post_category, $cat->term_id); } $publish = ! ( isset( $entry->draft ) && 'yes' == trim( $entry->draft ) ); $cap = ($publish) ? 'publish_posts' : 'edit_posts'; if ( !current_user_can($cap) ) $this->auth_required(__('Sorry, you do not have the right to edit/publish new posts.')); $blog_ID = get_current_blog_id(); $post_status = ($publish) ? 'publish' : 'draft'; $post_author = (int) $user_ID; $post_title = ''; $post_content = ''; $post_excerpt = ''; $pubtimes = ''; if ( isset( $entry->title ) && is_array( $entry->title ) && !empty( $entry->title[1] ) ) $post_title = (string) $entry->title[1]; if ( isset( $entry->content ) && is_array( $entry->content ) && !empty( $entry->content[1] ) ) $post_content = (string) $entry->content[1]; if ( isset( $entry->summary ) && is_array( $entry->summary ) && !empty( $entry->summary[1] ) ) $post_excerpt = (string) $entry->summary[1]; if ( !empty( $entry->published ) ) $pubtimes = (string) $entry->published; $pubtimes = $this->get_publish_time( $pubtimes ); $post_date = $pubtimes[0]; $post_date_gmt = $pubtimes[1]; if ( isset( $_SERVER['HTTP_SLUG'] ) ) $post_name = $_SERVER['HTTP_SLUG']; $post_data = compact('blog_ID', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_name'); $this->escape($post_data); $postID = wp_insert_post($post_data); if ( is_wp_error( $postID ) ) $this->internal_error($postID->get_error_message()); if ( !$postID ) $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.')); // getting warning here about unable to set headers // because something in the cache is printing to the buffer // could we clean up wp_set_post_categories or cache to not print // this could affect our ability to send back the right headers @wp_set_post_categories($postID, $post_category); do_action( 'atompub_create_post', $postID, $entry ); $output = $this->get_entry($postID); $this->created($postID, $output); } /** * Retrieve post. * * @since 2.2.0 * * @param int $postID Post ID. */ function get_post($postID) { global $entry; if ( !current_user_can( 'edit_post', $postID ) ) $this->auth_required( __( 'Sorry, you do not have the right to access this post.' ) ); $this->set_current_entry($postID); $output = $this->get_entry($postID); $this->output($output); } /** * Update post. * * @since 2.2.0 * * @param int $postID Post ID. */ function put_post($postID) { // checked for valid content-types (atom+xml) // quick check and exit $this->get_accepted_content_type($this->atom_content_types); $parser = new AtomParser(); if ( !$parser->parse() ) $this->bad_request(); $parsed = array_pop($parser->feed->entries); // check for not found global $entry; $this->set_current_entry($postID); if ( !current_user_can('edit_post', $entry['ID']) ) $this->auth_required(__('Sorry, you do not have the right to edit this post.')); $publish = ! ( isset($parsed->draft) && 'yes' == trim($parsed->draft) ); $post_status = ($publish) ? 'publish' : 'draft'; extract($entry); $post_title = $parsed->title[1]; $post_content = $parsed->content[1]; $post_excerpt = $parsed->summary[1]; $pubtimes = $this->get_publish_time($entry->published); $post_date = $pubtimes[0]; $post_date_gmt = $pubtimes[1]; $pubtimes = $this->get_publish_time($parsed->updated); $post_modified = $pubtimes[0]; $post_modified_gmt = $pubtimes[1]; $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt'); $this->escape($postdata); $result = wp_update_post($postdata); if ( !$result ) $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.')); do_action( 'atompub_put_post', $ID, $parsed ); $this->ok(); } /** * Remove post. * * @since 2.2.0 * * @param int $postID Post ID. */ function delete_post($postID) { // check for not found global $entry; $this->set_current_entry($postID); if ( !current_user_can('edit_post', $postID) ) $this->auth_required(__('Sorry, you do not have the right to delete this post.')); if ( $entry['post_type'] == 'attachment' ) { $this->delete_attachment($postID); } else { $result = wp_delete_post($postID); if ( !$result ) { $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.')); } $this->ok(); } } /** * Retrieve attachment. * * @since 2.2.0 * * @param int $postID Optional. Post ID. */ function get_attachment($postID = null) { if ( !current_user_can( 'upload_files' ) ) $this->auth_required( __( 'You do not have permission to upload files.' ) ); if ( !isset($postID) ) { $this->get_attachments(); } else { $this->set_current_entry($postID); $output = $this->get_entry($postID, 'attachment'); $this->output($output); } } /** * Create new attachment. * * @since 2.2.0 */ function create_attachment() { $type = $this->get_accepted_content_type(); if ( !current_user_can('upload_files') ) $this->auth_required( __( 'You do not have permission to upload files.' ) ); $fp = fopen("php://input", "rb"); $bits = null; while ( !feof($fp) ) { $bits .= fread($fp, 4096); } fclose($fp); $slug = ''; if ( isset( $_SERVER['HTTP_SLUG'] ) ) $slug = $_SERVER['HTTP_SLUG']; elseif ( isset( $_SERVER['HTTP_TITLE'] ) ) $slug = $_SERVER['HTTP_TITLE']; elseif ( empty( $slug ) ) // just make a random name $slug = substr( md5( uniqid( microtime() ) ), 0, 7); $ext = preg_replace( '|.*/([a-z0-9]+)|', '$1', $_SERVER['CONTENT_TYPE'] ); $slug = sanitize_file_name( "$slug.$ext" ); $file = wp_upload_bits( $slug, null, $bits); $url = $file['url']; $file = $file['file']; do_action('wp_create_file_in_uploads', $file); // replicate // Construct the attachment array $attachment = array( 'post_title' => $slug, 'post_content' => $slug, 'post_status' => 'attachment', 'post_parent' => 0, 'post_mime_type' => $type, 'guid' => $url ); // Save the data $postID = wp_insert_attachment($attachment, $file); if (!$postID) $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.')); $output = $this->get_entry($postID, 'attachment'); $this->created($postID, $output, 'attachment'); } /** * Update attachment. * * @since 2.2.0 * * @param int $postID Post ID. */ function put_attachment($postID) { // checked for valid content-types (atom+xml) // quick check and exit $this->get_accepted_content_type($this->atom_content_types); $parser = new AtomParser(); if (!$parser->parse()) { $this->bad_request(); } $parsed = array_pop($parser->feed->entries); // check for not found global $entry; $this->set_current_entry($postID); if ( !current_user_can('edit_post', $entry['ID']) ) $this->auth_required(__('Sorry, you do not have the right to edit this post.')); extract($entry); $post_title = $parsed->title[1]; $post_content = $parsed->summary[1]; $pubtimes = $this->get_publish_time($parsed->updated); $post_modified = $pubtimes[0]; $post_modified_gmt = $pubtimes[1]; $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_modified', 'post_modified_gmt'); $this->escape($postdata); $result = wp_update_post($postdata); if ( !$result ) $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.')); $this->ok(); } /** * Remove attachment. * * @since 2.2.0 * * @param int $postID Post ID. */ function delete_attachment($postID) { // check for not found global $entry; $this->set_current_entry($postID); if ( !current_user_can('edit_post', $postID) ) $this->auth_required(__('Sorry, you do not have the right to delete this post.')); $location = get_post_meta($entry['ID'], '_wp_attached_file', true); $filetype = wp_check_filetype($location); if ( !isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']) ) $this->internal_error(__('Error occurred while accessing post metadata for file location.')); // delete file @unlink($location); // delete attachment $result = wp_delete_post($postID); if ( !$result ) $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.')); $this->ok(); } /** * Retrieve attachment from post. * * @since 2.2.0 * * @param int $postID Post ID. */ function get_file($postID) { // check for not found global $entry; $this->set_current_entry($postID); // then whether user can edit the specific post if ( !current_user_can('edit_post', $postID) ) $this->auth_required(__('Sorry, you do not have the right to edit this post.')); $location = get_post_meta($entry['ID'], '_wp_attached_file', true); $location = get_option ('upload_path') . '/' . $location; $filetype = wp_check_filetype($location); if ( !isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext']) ) $this->internal_error(__('Error occurred while accessing post metadata for file location.')); status_header('200'); header('Content-Type: ' . $entry['post_mime_type']); header('Connection: close'); if ( $fp = fopen($location, "rb") ) { status_header('200'); header('Content-Type: ' . $entry['post_mime_type']); header('Connection: close'); while ( !feof($fp) ) { echo fread($fp, 4096); } fclose($fp); } else { status_header ('404'); } wp_die(); } /** * Upload file to blog and add attachment to post. * * @since 2.2.0 * * @param int $postID Post ID. */ function put_file($postID) { // first check if user can upload if ( !current_user_can('upload_files') ) $this->auth_required(__('You do not have permission to upload files.')); // check for not found global $entry; $this->set_current_entry($postID); // then whether user can edit the specific post if ( !current_user_can('edit_post', $postID) ) $this->auth_required(__('Sorry, you do not have the right to edit this post.')); $upload_dir = wp_upload_dir( ); $location = get_post_meta($entry['ID'], '_wp_attached_file', true); $filetype = wp_check_filetype($location); $location = "{$upload_dir['basedir']}/{$location}"; if (!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext'])) $this->internal_error(__('Error occurred while accessing post metadata for file location.')); $fp = fopen("php://input", "rb"); $localfp = fopen($location, "w+"); while ( !feof($fp) ) { fwrite($localfp,fread($fp, 4096)); } fclose($fp); fclose($localfp); $ID = $entry['ID']; $pubtimes = $this->get_publish_time($entry->published); $post_date = $pubtimes[0]; $post_date_gmt = $pubtimes[1]; $pubtimes = $this->get_publish_time($parsed->updated); $post_modified = $pubtimes[0]; $post_modified_gmt = $pubtimes[1]; $post_data = compact('ID', 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt'); $result = wp_update_post($post_data); if ( !$result ) $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.')); wp_update_attachment_metadata( $postID, wp_generate_attachment_metadata( $postID, $location ) ); $this->ok(); } /** * Retrieve entries URL. * * @since 2.2.0 * * @param int $page Page ID. * @return string */ function get_entries_url($page = null) { if ( isset($GLOBALS['post_type']) && ( $GLOBALS['post_type'] == 'attachment' ) ) $path = $this->MEDIA_PATH; else $path = $this->ENTRIES_PATH; $url = $this->app_base . $path; if ( isset($page) && is_int($page) ) $url .= "/$page"; return $url; } /** * Display entries URL. * * @since 2.2.0 * * @param int $page Page ID. */ function the_entries_url($page = null) { echo $this->get_entries_url($page); } /** * Retrieve categories URL. * * @since 2.2.0 * * @param mixed $deprecated Not used. * @return string */ function get_categories_url($deprecated = '') { if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '2.5' ); return $this->app_base . $this->CATEGORIES_PATH; } /** * Display category URL. * * @since 2.2.0 */ function the_categories_url() { echo $this->get_categories_url(); } /** * Retrieve attachment URL. * * @since 2.2.0 * * @param int $page Page ID. * @return string */ function get_attachments_url($page = null) { $url = $this->app_base . $this->MEDIA_PATH; if (isset($page) && is_int($page)) { $url .= "/$page"; } return $url; } /** * Display attachment URL. * * @since 2.2.0 * * @param int $page Page ID. */ function the_attachments_url($page = null) { echo $this->get_attachments_url($page); } /** * Retrieve service URL. * * @since 2.3.0 * * @return string */ function get_service_url() { return $this->app_base . $this->SERVICE_PATH; } /** * Retrieve entry URL. * * @since 2.7.0 * * @param int $postID Post ID. * @return string */ function get_entry_url($postID = null) { if (!isset($postID)) { global $post; $postID = (int) $post->ID; } $url = $this->app_base . $this->ENTRY_PATH . "/$postID"; return $url; } /** * Display entry URL. * * @since 2.7.0 * * @param int $postID Post ID. */ function the_entry_url($postID = null) { echo $this->get_entry_url($postID); } /** * Retrieve media URL. * * @since 2.2.0 * * @param int $postID Post ID. * @return string */ function get_media_url($postID = null) { if (!isset($postID)) { global $post; $postID = (int) $post->ID; } $url = $this->app_base . $this->MEDIA_SINGLE_PATH ."/file/$postID"; return $url; } /** * Display the media URL. * * @since 2.2.0 * * @param int $postID Post ID. */ function the_media_url($postID = null) { echo $this->get_media_url($postID); } /** * Set the current entry to post ID. * * @since 2.2.0 * * @param int $postID Post ID. */ function set_current_entry($postID) { global $entry; if (!isset($postID)) { // $this->bad_request(); $this->not_found(); } $entry = get_post($postID,ARRAY_A); if (!isset($entry) || !isset($entry['ID'])) $this->not_found(); return; } /** * Display posts XML. * * @since 2.2.0 * * @param int $page Optional. Page ID. * @param string $post_type Optional, default is 'post'. Post Type. */ function get_posts($page = 1, $post_type = 'post') { $feed = $this->get_feed($page, $post_type); $this->output($feed); } /** * Display attachment XML. * * @since 2.2.0 * * @param int $page Page ID. * @param string $post_type Optional, default is 'attachment'. Post type. */ function get_attachments($page = 1, $post_type = 'attachment') { $GLOBALS['post_type'] = $post_type; $feed = $this->get_feed($page, $post_type); $this->output($feed); } /** * Retrieve feed XML. * * @since 2.2.0 * * @param int $page Page ID. * @param string $post_type Optional, default is post. Post type. * @return string */ function get_feed($page = 1, $post_type = 'post') { global $post, $wp, $wp_query, $posts, $wpdb, $blog_id; ob_start(); $this->ENTRY_PATH = $post_type; if (!isset($page)) { $page = 1; } $page = (int) $page; $count = get_option('posts_per_rss'); wp('posts_per_page=' . $count . '&offset=' . ($count * ($page-1)) . '&orderby=modified&post_status=any'); $post = $GLOBALS['post']; $posts = $GLOBALS['posts']; $wp = $GLOBALS['wp']; $wp_query = $GLOBALS['wp_query']; $wpdb = $GLOBALS['wpdb']; $blog_id = (int) $GLOBALS['blog_id']; $last_page = $wp_query->max_num_pages; $next_page = (($page + 1) > $last_page) ? null : $page + 1; $prev_page = ($page - 1) < 1 ? null : $page - 1; $last_page = ((int)$last_page == 1 || (int)$last_page == 0) ? null : (int) $last_page; $self_page = $page > 1 ? $page : null; ?> > the_entries_url() ?> <?php bloginfo_rss('name') ?> Copyright echo_entry(); } } ?> ENTRY_PATH = 'attachment'; $varname = 'attachment_id'; break; } query_posts($varname . '=' . $postID); if ( have_posts() ) { while ( have_posts() ) { the_post(); $this->echo_entry(); $entry = ob_get_contents(); break; } } ob_end_clean(); return $entry; } /** * Display post content XML. * * @since 2.3.0 */ function echo_entry() { ?> ID ); ?> <?php echo $content ?> post_status == 'draft' ? 'yes' : 'no') ?> post_type == 'attachment') { ?> post_content ) ) : list($content_type, $content) = prep_atom_text_construct(get_the_content()); ?> 302 Found

Found

The document has moved here.

EOD; header('HTTP/1.1 302 Moved'); header('Content-Type: text/html'); header('Location: ' . $url); echo $content; wp_die(); } /** * Set 'Client Error' (400) status header. * * @since 2.2.0 */ function client_error($msg = 'Client Error') { header('Content-Type: text/plain'); status_header('400'); wp_die(); } /** * Set created status headers (201). * * Sets the 'content-type', 'content-location', and 'location'. * * @since 2.2.0 */ function created($post_ID, $content, $post_type = 'post') { $edit = $this->get_entry_url($post_ID); switch($post_type) { case 'post': $ctloc = $this->get_entry_url($post_ID); break; case 'attachment': $edit = $this->app_base . "attachments/$post_ID"; break; } header("Content-Type: $this->ATOM_CONTENT_TYPE"); if (isset($ctloc)) header('Content-Location: ' . $ctloc); header('Location: ' . $edit); status_header('201'); echo $content; wp_die(); } /** * Set 'Auth Required' (401) headers. * * @since 2.2.0 * * @param string $msg Status header content and HTML content. */ function auth_required($msg) { nocache_headers(); header('WWW-Authenticate: Basic realm="WordPress Atom Protocol"'); header("HTTP/1.1 401 $msg"); header('Status: 401 ' . $msg); header('Content-Type: text/html'); $content = << 401 Unauthorized

401 Unauthorized

$msg

EOD; echo $content; wp_die(); } /** * Display XML and set headers with content type. * * @since 2.2.0 * * @param string $xml Display feed content. * @param string $ctype Optional, default is 'atom+xml'. Feed content type. */ function output($xml, $ctype = 'application/atom+xml') { status_header('200'); $xml = ''."\n".$xml; header('Connection: close'); header('Content-Length: '. strlen($xml)); header('Content-Type: ' . $ctype); header('Content-Disposition: attachment; filename=atom.xml'); header('Date: '. date('r')); if ($this->do_output) echo $xml; wp_die(); } /** * Sanitize content for database usage. * * @since 2.2.0 * * @param array $array Sanitize array and multi-dimension array. */ function escape(&$array) { global $wpdb; foreach ($array as $k => $v) { if (is_array($v)) { $this->escape($array[$k]); } else if (is_object($v)) { //skip } else { $array[$k] = $wpdb->escape($v); } } } /** * Access credential through various methods and perform login. * * @since 2.2.0 * * @return bool */ function authenticate() { // if using mod_rewrite/ENV hack // http://www.besthostratings.com/articles/http-auth-php-cgi.html if (isset($_SERVER['HTTP_AUTHORIZATION'])) { list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6))); } else if (isset($_SERVER['REDIRECT_REMOTE_USER'])) { // Workaround for setups that do not forward HTTP_AUTHORIZATION // See http://trac.wordpress.org/ticket/7361 list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['REDIRECT_REMOTE_USER'], 6))); } // If Basic Auth is working... if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) { $user = wp_authenticate($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']); if ( $user && !is_wp_error($user) ) { wp_set_current_user($user->ID); return true; } } return false; } /** * Retrieve accepted content types. * * @since 2.2.0 * * @param array $types Optional. Content Types. * @return string */ function get_accepted_content_type($types = null) { if (!isset($types)) { $types = $this->media_content_types; } if (!isset($_SERVER['CONTENT_LENGTH']) || !isset($_SERVER['CONTENT_TYPE'])) { $this->length_required(); } $type = $_SERVER['CONTENT_TYPE']; list($type,$subtype) = explode('/',$type); list($subtype) = explode(";",$subtype); // strip MIME parameters foreach($types as $t) { list($acceptedType,$acceptedSubtype) = explode('/',$t); if ($acceptedType == '*' || $acceptedType == $type) { if ($acceptedSubtype == '*' || $acceptedSubtype == $subtype) return $type . "/" . $subtype; } } $this->invalid_media(); } /** * Process conditionals for posts. * * @since 2.2.0 */ function process_conditionals() { if (empty($this->params)) return; if ($_SERVER['REQUEST_METHOD'] == 'DELETE') return; switch($this->params[0]) { case $this->ENTRY_PATH: global $post; $post = get_post($this->params[1]); $wp_last_modified = get_post_modified_time('D, d M Y H:i:s', true); $post = null; break; case $this->ENTRIES_PATH: $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT'; break; default: return; } $wp_etag = md5($wp_last_modified); @header("Last-Modified: $wp_last_modified"); @header("ETag: $wp_etag"); // Support for Conditional GET if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']); else $client_etag = false; $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']); // If string is empty, return 0. If not, attempt to parse into a timestamp $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0; // Make a timestamp for our most recent modification... $wp_modified_timestamp = strtotime($wp_last_modified); if ( ($client_last_modified && $client_etag) ? (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) : (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) { status_header( 304 ); wp_die(); } } /** * Convert RFC3339 time string to timestamp. * * @since 2.3.0 * * @param string $str String to time. * @return bool|int false if format is incorrect. */ function rfc3339_str2time($str) { $match = false; if (!preg_match("/(\d{4}-\d{2}-\d{2})T(\d{2}\:\d{2}\:\d{2})\.?\d{0,3}(Z|[+-]+\d{2}\:\d{2})/", $str, $match)) return false; if ($match[3] == 'Z') $match[3] = '+0000'; return strtotime($match[1] . " " . $match[2] . " " . $match[3]); } /** * Retrieve published time to display in XML. * * @since 2.3.0 * * @param string $published Time string. * @return string */ function get_publish_time($published) { $pubtime = $this->rfc3339_str2time($published); if (!$pubtime) { return array(current_time('mysql'),current_time('mysql',1)); } else { return array(date("Y-m-d H:i:s", $pubtime), gmdate("Y-m-d H:i:s", $pubtime)); } } }