<?php /** * Atom Publishing Protocol support for WordPress * * @author Original by Elias Torres <http://torrez.us/archives/2006/08/31/491/> * @author Modified by Dougal Campbell <http://dougal.gunters.org/> * @version 1.0.5-dc */ /** * WordPress is handling an Atom Publishing Protocol request. * * @var bool */ define('APP_REQUEST', true); /** Set up WordPress environment */ require_once('./wp-load.php'); /** Post Template API */ require_once(ABSPATH . WPINC . '/post-template.php'); /** Atom Publishing Protocol Class */ require_once(ABSPATH . WPINC . '/atomlib.php'); /** Feed Handling API */ require_once(ABSPATH . WPINC . '/feed.php'); /** Admin Image API for metadata updating */ require_once(ABSPATH . '/wp-admin/includes/image.php'); $_SERVER['PATH_INFO'] = preg_replace( '/.*\/wp-app\.php/', '', $_SERVER['REQUEST_URI'] ); /** * Whether to enable Atom Publishing Protocol Logging. * * @name app_logging * @var int|bool */ $app_logging = 0; /** * Whether to always authenticate user. Permanently set to true. * * @name always_authenticate * @var int|bool * @todo Should be an option somewhere */ $always_authenticate = 1; /** * Writes logging info to a file. * * @since 2.2.0 * @uses $app_logging * @package WordPress * @subpackage Logging * * @param string $label Type of logging * @param string $msg Information describing logging reason. */ function log_app($label,$msg) { global $app_logging; if ($app_logging) { $fp = fopen( 'wp-app.log', 'a+'); $date = gmdate( 'Y-m-d H:i:s' ); fwrite($fp, "\n\n$date - $label\n$msg\n"); fclose($fp); } } if ( !function_exists('wp_set_current_user') ) : /** * @ignore */ function wp_set_current_user($id, $name = '') { global $current_user; if ( isset($current_user) && ($id == $current_user->ID) ) return $current_user; $current_user = new WP_User($id, $name); return $current_user; } endif; /** * Filter to add more post statuses. * * @since 2.2.0 * * @param string $where SQL statement to filter. * @return string Filtered SQL statement with added post_status for where clause. */ function wa_posts_where_include_drafts_filter($where) { $where = str_replace("post_status = 'publish'","post_status = 'publish' OR post_status = 'future' OR post_status = 'draft' OR post_status = 'inherit'", $where); return $where; } add_filter('posts_where', 'wa_posts_where_include_drafts_filter'); /** * WordPress AtomPub API implementation. * * @package WordPress * @subpackage Publishing * @since 2.2.0 */ class AtomServer { /** * ATOM content type. * * @since 2.2.0 * @var string */ var $ATOM_CONTENT_TYPE = 'application/atom+xml'; /** * Categories ATOM content type. * * @since 2.2.0 * @var string */ var $CATEGORIES_CONTENT_TYPE = 'application/atomcat+xml'; /** * Service ATOM content type. * * @since 2.3.0 * @var string */ var $SERVICE_CONTENT_TYPE = 'application/atomsvc+xml'; /** * ATOM XML namespace. * * @since 2.3.0 * @var string */ var $ATOM_NS = 'http://www.w3.org/2005/Atom'; /** * ATOMPUB XML namespace. * * @since 2.3.0 * @var string */ var $ATOMPUB_NS = 'http://www.w3.org/2007/app'; /** * Entries path. * * @since 2.2.0 * @var string */ var $ENTRIES_PATH = "posts"; /** * Categories path. * * @since 2.2.0 * @var string */ var $CATEGORIES_PATH = "categories"; /** * Media path. * * @since 2.2.0 * @var string */ var $MEDIA_PATH = "attachments"; /** * Entry path. * * @since 2.2.0 * @var string */ var $ENTRY_PATH = "post"; /** * Service path. * * @since 2.2.0 * @var string */ var $SERVICE_PATH = "service"; /** * Media single path. * * @since 2.2.0 * @var string */ var $MEDIA_SINGLE_PATH = "attachment"; /** * ATOMPUB parameters. * * @since 2.2.0 * @var array */ var $params = array(); /** * Supported ATOMPUB media types. * * @since 2.3.0 * @var array */ var $media_content_types = array('image/*','audio/*','video/*'); /** * ATOMPUB content type(s). * * @since 2.2.0 * @var array */ var $atom_content_types = array('application/atom+xml'); /** * ATOMPUB methods. * * @since 2.2.0 * @var unknown_type */ var $selectors = array(); /** * Whether to do output. * * Support for head. * * @since 2.2.0 * @var bool */ var $do_output = true; /** * PHP4 constructor - Sets up object properties. * * @since 2.2.0 * @return AtomServer */ function AtomServer() { $this->script_name = array_pop(explode('/',$_SERVER['SCRIPT_NAME'])); $this->app_base = get_bloginfo('url') . '/' . $this->script_name . '/'; if ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) { $this->app_base = preg_replace( '/^http:\/\//', 'https://', $this->app_base ); } $this->selectors = array( '@/service$@' => 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() { global $always_authenticate; if( !empty( $_SERVER['ORIG_PATH_INFO'] ) ) $path = $_SERVER['ORIG_PATH_INFO']; else $path = $_SERVER['PATH_INFO']; $method = $_SERVER['REQUEST_METHOD']; log_app('REQUEST',"$method $path\n================"); $this->process_conditionals(); //$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' ) ) $this->forbidden( sprintf( __( 'AtomPub services are disabled on this blog. An admin user can enable them at %s' ), admin_url('options-writing.php') ) ); // dispatch foreach($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()) { if ($always_authenticate) { $this->auth_required('Credentials required.'); } } array_shift($matches); call_user_func_array(array(&$this,$funcs[$method]), $matches); exit(); } 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() { log_app('function','get_service()'); if( !current_user_can( 'edit_posts' ) ) $this->auth_required( __( 'Sorry, you do not have the right to access this blog.' ) ); $entries_url = esc_attr($this->get_entries_url()); $categories_url = esc_attr($this->get_categories_url()); $media_url = esc_attr($this->get_attachments_url()); foreach ($this->media_content_types as $med) { $accepted_media_types = $accepted_media_types . "<accept>" . $med . "</accept>"; } $atom_prefix="atom"; $atom_blogname=get_bloginfo('name'); $service_doc = <<<EOD <service xmlns="$this->ATOMPUB_NS" xmlns:$atom_prefix="$this->ATOM_NS"> <workspace> <$atom_prefix:title>$atom_blogname Workspace</$atom_prefix:title> <collection href="$entries_url"> <$atom_prefix:title>$atom_blogname Posts</$atom_prefix:title> <accept>$this->ATOM_CONTENT_TYPE;type=entry</accept> <categories href="$categories_url" /> </collection> <collection href="$media_url"> <$atom_prefix:title>$atom_blogname Media</$atom_prefix:title> $accepted_media_types </collection> </workspace> </service> EOD; $this->output($service_doc, $this->SERVICE_CONTENT_TYPE); } /** * Retrieve categories list in XML format. * * @since 2.2.0 */ function get_categories_xml() { log_app('function','get_categories_xml()'); if( !current_user_can( 'edit_posts' ) ) $this->auth_required( __( 'Sorry, you do not have the right to access this blog.' ) ); $home = esc_attr(get_bloginfo_rss('home')); $categories = ""; $cats = get_categories("hierarchical=0&hide_empty=0"); foreach ((array) $cats as $cat) { $categories .= " <category term=\"" . esc_attr($cat->name) . "\" />\n"; } $output = <<<EOD <app:categories xmlns:app="$this->ATOMPUB_NS" xmlns="$this->ATOM_NS" fixed="yes" scheme="$home"> $categories </app:categories> EOD; $this->output($output, $this->CATEGORIES_CONTENT_TYPE); } /** * Create new post. * * @since 2.2.0 */ function create_post() { global $blog_id, $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); log_app('Received entry:', print_r($entry,true)); $catnames = array(); foreach($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) && trim($entry->draft) == 'yes') ? false : true; $cap = ($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 = (int ) $blog_id; $post_status = ($publish) ? 'publish' : 'draft'; $post_author = (int) $user_ID; $post_title = $entry->title[1]; $post_content = $entry->content[1]; $post_excerpt = $entry->summary[1]; $pubtimes = $this->get_publish_time($entry->published); $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); log_app('Inserting Post. Data:', print_r($post_data,true)); $postID = wp_insert_post($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); log_app('function',"create_post($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); log_app('function',"get_post($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); log_app('Received UPDATED entry:', print_r($parsed,true)); // 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) && trim($parsed->draft) == 'yes') ? false : true; $post_status = ($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, $parsed ); log_app('function',"put_post($postID)"); $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) { $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.')); } log_app('function',"delete_post($postID)"); $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' ) ) $this->auth_required( __( 'Sorry, you do not have permission to upload files.' ) ); if (!isset($postID)) { $this->get_attachments(); } else { $this->set_current_entry($postID); $output = $this->get_entry($postID, 'attachment'); log_app('function',"get_attachment($postID)"); $this->output($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 = sanitize_file_name( $_SERVER['HTTP_SLUG'] ); elseif ( isset( $_SERVER['HTTP_TITLE'] ) ) $slug = sanitize_file_name( $_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'] ); $slug = "$slug.$ext"; $file = wp_upload_bits( $slug, NULL, $bits); log_app('wp_upload_bits returns:',print_r($file,true)); $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, $output, 'attachment'); log_app('function',"create_attachment($postID)"); } /** * 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) { $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.')); } log_app('function',"put_attachment($postID)"); $this->ok(); } /** * Remove attachment. * * @since 2.2.0 * * @param int $postID Post ID. */ function delete_attachment($postID) { log_app('function',"delete_attachment($postID). File '$location' deleted."); // 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'])) $this->internal_error(__('Error ocurred while accessing post metadata for file location.')); // delete file @unlink($location); // delete attachment $result = wp_delete_post($postID); if (!$result) { $this->internal_error(__('For some strange yet very annoying reason, this post could not be deleted.')); } log_app('function',"delete_attachment($postID). File '$location' 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); $filetype = wp_check_filetype($location); if(!isset($location) || 'attachment' != $entry['post_type'] || empty($filetype['ext'])) $this->internal_error(__('Error ocurred while accessing post metadata for file location.')); status_header('200'); header('Content-Type: ' . $entry['post_mime_type']); header('Connection: close'); $fp = fopen($location, "rb"); while(!feof($fp)) { echo fread($fp, 4096); } fclose($fp); log_app('function',"get_file($postID)"); exit; } /** * 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 ocurred 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, $location ) ); log_app('function',"put_file($postID)"); $this->ok(); } /** * Retrieve entries URL. * * @since 2.2.0 * * @param int $page Page ID. * @return string */ function get_entries_url($page = null) { if($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 $deprecated Optional, not used. * @return string */ function get_categories_url($deprecated = '') { 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"; log_app('function',"get_entry_url() = $url"); 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"; log_app('function',"get_media_url() = $url"); 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 $entry; log_app('function',"set_current_entry($postID)"); if(!isset($postID)) { // $this->bad_request(); $this->not_found(); } $entry = wp_get_single_post($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, $post_type = 'post') { log_app('function',"get_posts($page, '$post_type')"); $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, $post_type = 'attachment') { log_app('function',"get_attachments($page, '$post_type')"); $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, $blog_id; log_app('function',"get_feed($page, '$post_type')"); 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 = $GLOBALS['post']; $posts = $GLOBALS['posts']; $wp = $GLOBALS['wp']; $wp_query = $GLOBALS['wp_query']; $wpdb = $GLOBALS['wpdb']; $blog_id = (int) $GLOBALS['blog_id']; log_app('function',"query_posts(# " . print_r($wp_query, true) . "#)"); log_app('function',"total_count(# $wp_query->max_num_pages #)"); $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; ?><feed xmlns="<?php echo $this->ATOM_NS ?>" xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>"> <id><?php $this->the_entries_url() ?></id> <updated><?php echo mysql2date('Y-m-d\TH:i:s\Z', get_lastpostmodified('GMT'), false); ?></updated> <title type="text"><?php bloginfo_rss('name') ?></title> <subtitle type="text"><?php bloginfo_rss("description") ?></subtitle> <link rel="first" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url() ?>" /> <?php if(isset($prev_page)): ?> <link rel="previous" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($prev_page) ?>" /> <?php endif; ?> <?php if(isset($next_page)): ?> <link rel="next" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($next_page) ?>" /> <?php endif; ?> <link rel="last" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($last_page) ?>" /> <link rel="self" type="<?php echo $this->ATOM_CONTENT_TYPE ?>" href="<?php $this->the_entries_url($self_page) ?>" /> <rights type="text">Copyright <?php echo date('Y'); ?></rights> <?php the_generator( 'atom' ); ?> <?php if ( have_posts() ) { while ( have_posts() ) { the_post(); $this->echo_entry(); } } ?></feed> <?php $feed = ob_get_contents(); ob_end_clean(); return $feed; } /** * Display entry XML. * * @since 2.2.0 * * @param int $postID Post ID. * @param string $post_type Optional, default is post. Post type. * @return string. */ function get_entry($postID, $post_type = 'post') { log_app('function',"get_entry($postID, '$post_type')"); ob_start(); switch($post_type) { case 'post': $varname = 'p'; break; case 'attachment': $this->ENTRY_PATH = 'attachment'; $varname = 'attachment_id'; break; } query_posts($varname . '=' . $postID); if ( have_posts() ) { while ( have_posts() ) { the_post(); $this->echo_entry(); log_app('$post',print_r($GLOBALS['post'],true)); $entry = ob_get_contents(); break; } } ob_end_clean(); log_app('get_entry returning:',$entry); return $entry; } /** * Display post content XML. * * @since 2.3.0 */ function echo_entry() { ?> <entry xmlns="<?php echo $this->ATOM_NS ?>" xmlns:app="<?php echo $this->ATOMPUB_NS ?>" xml:lang="<?php echo get_option('rss_language'); ?>"> <id><?php the_guid($GLOBALS['post']->ID); ?></id> <?php list($content_type, $content) = prep_atom_text_construct(get_the_title()); ?> <title type="<?php echo $content_type ?>"><?php echo $content ?></title> <updated><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></updated> <published><?php echo get_post_time('Y-m-d\TH:i:s\Z', true); ?></published> <app:edited><?php echo get_post_modified_time('Y-m-d\TH:i:s\Z', true); ?></app:edited> <app:control> <app:draft><?php echo ($GLOBALS['post']->post_status == 'draft' ? 'yes' : 'no') ?></app:draft> </app:control> <author> <name><?php the_author()?></name> <?php if ( get_the_author_meta('url') && get_the_author_meta('url') != 'http://' ) { ?> <uri><?php the_author_meta('url') ?></uri> <?php } ?> </author> <?php if($GLOBALS['post']->post_type == 'attachment') { ?> <link rel="edit-media" href="<?php $this->the_media_url() ?>" /> <content type="<?php echo $GLOBALS['post']->post_mime_type ?>" src="<?php the_guid(); ?>"/> <?php } else { ?> <link href="<?php the_permalink_rss() ?>" /> <?php if ( strlen( $GLOBALS['post']->post_content ) ) : list($content_type, $content) = prep_atom_text_construct(get_the_content()); ?> <content type="<?php echo $content_type ?>"><?php echo $content ?></content> <?php endif; ?> <?php } ?> <link rel="edit" href="<?php $this->the_entry_url() ?>" /> <?php the_category_rss( 'atom' ); ?> <?php list($content_type, $content) = prep_atom_text_construct(get_the_excerpt()); ?> <summary type="<?php echo $content_type ?>"><?php echo $content ?></summary> </entry> <?php } /** * Set 'OK' (200) status header. * * @since 2.2.0 */ function ok() { log_app('Status','200: OK'); header('Content-Type: text/plain'); status_header('200'); exit; } /** * Set 'No Content' (204) status header. * * @since 2.2.0 */ function no_content() { log_app('Status','204: No Content'); header('Content-Type: text/plain'); status_header('204'); echo "Deleted."; exit; } /** * Display 'Internal Server Error' (500) status header. * * @since 2.2.0 * * @param string $msg Optional. Status string. */ function internal_error($msg = 'Internal Server Error') { log_app('Status','500: Server Error'); header('Content-Type: text/plain'); status_header('500'); echo $msg; exit; } /** * Set 'Bad Request' (400) status header. * * @since 2.2.0 */ function bad_request() { log_app('Status','400: Bad Request'); header('Content-Type: text/plain'); status_header('400'); exit; } /** * Set 'Length Required' (411) status header. * * @since 2.2.0 */ function length_required() { log_app('Status','411: Length Required'); header("HTTP/1.1 411 Length Required"); header('Content-Type: text/plain'); status_header('411'); exit; } /** * Set 'Unsupported Media Type' (415) status header. * * @since 2.2.0 */ function invalid_media() { log_app('Status','415: Unsupported Media Type'); header("HTTP/1.1 415 Unsupported Media Type"); header('Content-Type: text/plain'); exit; } /** * Set 'Forbidden' (403) status header. * * @since 2.6.0 */ function forbidden($reason='') { log_app('Status','403: Forbidden'); header('Content-Type: text/plain'); status_header('403'); echo $reason; exit; } /** * Set 'Not Found' (404) status header. * * @since 2.2.0 */ function not_found() { log_app('Status','404: Not Found'); header('Content-Type: text/plain'); status_header('404'); exit; } /** * Set 'Not Allowed' (405) status header. * * @since 2.2.0 */ function not_allowed($allow) { log_app('Status','405: Not Allowed'); header('Allow: ' . join(',', $allow)); status_header('405'); exit; } /** * Display Redirect (302) content and set status headers. * * @since 2.3.0 */ function redirect($url) { log_app('Status','302: Redirect'); $escaped_url = esc_attr($url); $content = <<<EOD <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html> <head> <title>302 Found</title> </head> <body> <h1>Found</h1> <p>The document has moved <a href="$escaped_url">here</a>.</p> </body> </html> EOD; header('HTTP/1.1 302 Moved'); header('Content-Type: text/html'); header('Location: ' . $url); echo $content; exit; } /** * Set 'Client Error' (400) status header. * * @since 2.2.0 */ function client_error($msg = 'Client Error') { log_app('Status','400: Client Error'); header('Content-Type: text/plain'); status_header('400'); exit; } /** * Set created status headers (201). * * Sets the 'content-type', 'content-location', and 'location'. * * @since 2.2.0 */ function created($post_ID, $content, $post_type = 'post') { log_app('created()::$post_ID',"$post_ID, $post_type"); $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; exit; } /** * Set 'Auth Required' (401) headers. * * @since 2.2.0 * * @param string $msg Status header content and HTML content. */ function auth_required($msg) { log_app('Status','401: Auth Required'); 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'); $content = <<<EOD <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html> <head> <title>401 Unauthorized</title> </head> <body> <h1>401 Unauthorized</h1> <p>$msg</p> </body> </html> EOD; echo $content; exit; } /** * 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'); $xml = '<?xml version="1.0" encoding="' . strtolower(get_option('blog_charset')) . '"?>'."\n".$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 $xml; log_app('function', "output:\n$xml"); exit; } /** * 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() { log_app("authenticate()",print_r($_ENV, true)); // if using mod_rewrite/ENV hack // http://www.besthostratings.com/articles/http-auth-php-cgi.html if(isset($_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'])) { log_app("Basic Auth",$_SERVER['PHP_AUTH_USER']); } $user = wp_authenticate($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']); if ( $user && !is_wp_error($user) ) { wp_set_current_user($user->ID); log_app("authenticate()", $user->user_login); 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 log_app("get_accepted_content_type", "type=$type, subtype=$subtype"); 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; $post = wp_get_single_post($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 ); exit; } } /** * 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)); } } } /** * AtomServer * @var AtomServer * @global object $server */ $server = new AtomServer(); $server->handle_request(); ?>