--- /dev/null
+<?php
+/*
+ * wp-app.php - Atom Publishing Protocol support for WordPress
+ * Original code by: Elias Torres, http://torrez.us/archives/2006/08/31/491/
+ * Modified by: Dougal Campbell, http://dougal.gunters.org/
+ *
+ * Version: 1.0.5-dc
+ */
+
+define('APP_REQUEST', true);
+
+require_once('./wp-config.php');
+require_once(ABSPATH . WPINC . '/post-template.php');
+require_once(ABSPATH . WPINC . '/atomlib.php');
+
+$_SERVER['PATH_INFO'] = preg_replace( '/.*\/wp-app\.php/', '', $_SERVER['REQUEST_URI'] );
+
+$app_logging = 0;
+
+// TODO: Should be an option somewhere
+$always_authenticate = 1;
+
+function log_app($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($fp);
+ }
+}
+
+if ( !function_exists('wp_set_current_user') ) :
+function wp_set_current_user($id, $name = '') {
+ global $current_user;
+
+ if ( isset($current_user) && ($id == $current_user->ID) )
+ return $current_user;
+
+ $current_user = new WP_User($id, $name);
+
+ return $current_user;
+}
+endif;
+
+function wa_posts_where_include_drafts_filter($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');
+
+class AtomServer {
+
+ var $ATOM_CONTENT_TYPE = 'application/atom+xml';
+ var $CATEGORIES_CONTENT_TYPE = 'application/atomcat+xml';
+ var $SERVICE_CONTENT_TYPE = 'application/atomsvc+xml';
+
+ var $ATOM_NS = 'http://www.w3.org/2005/Atom';
+ var $ATOMPUB_NS = 'http://www.w3.org/2007/app';
+
+ var $ENTRIES_PATH = "posts";
+ var $CATEGORIES_PATH = "categories";
+ var $MEDIA_PATH = "attachments";
+ var $ENTRY_PATH = "post";
+ var $SERVICE_PATH = "service";
+ var $MEDIA_SINGLE_PATH = "attachment";
+
+ var $params = array();
+ var $script_name = "wp-app.php";
+ var $media_content_types = array('image/*','audio/*','video/*');
+ var $atom_content_types = array('application/atom+xml');
+
+ var $selectors = array();
+
+ // support for head
+ var $do_output = true;
+
+ function AtomServer() {
+
+ $this->script_name = array_pop(explode('/',$_SERVER['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'),
+ );
+ }
+
+ function handle_request() {
+ global $always_authenticate;
+
+ $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());
+ }
+
+ // 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.
+ $this->authenticate();
+ $u = wp_get_current_user();
+ if(!isset($u) || $u->ID == 0) {
+ if ($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();
+ }
+
+ 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.' ) );
+
+ $entries_url = attribute_escape($this->get_entries_url());
+ $categories_url = attribute_escape($this->get_categories_url());
+ $media_url = attribute_escape($this->get_attachments_url());
+ foreach ($this->media_content_types as $med) {
+ $accepted_media_types = $accepted_media_types . "<accept>" . $med . "</accept>";
+ }
+ $atom_prefix="atom";
+ $service_doc = <<<EOD
+<service xmlns="$this->ATOMPUB_NS" xmlns:$atom_prefix="$this->ATOM_NS">
+ <workspace>
+ <$atom_prefix:title>WordPress Workspace</$atom_prefix:title>
+ <collection href="$entries_url">
+ <$atom_prefix:title>WordPress Posts</$atom_prefix:title>
+ <accept>$this->ATOM_CONTENT_TYPE;type=entry</accept>
+ <categories href="$categories_url" />
+ </collection>
+ <collection href="$media_url">
+ <$atom_prefix:title>WordPress Media</$atom_prefix:title>
+ $accepted_media_types
+ </collection>
+ </workspace>
+</service>
+
+EOD;
+
+ $this->output($service_doc, $this->SERVICE_CONTENT_TYPE);
+ }
+
+ 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 = attribute_escape(get_bloginfo_rss('home'));
+
+ $categories = "";
+ $cats = get_categories("hierarchical=0&hide_empty=0");
+ foreach ((array) $cats as $cat) {
+ $categories .= " <category term=\"" . attribute_escape($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 Post (No arguments)
+ */
+ function create_post() {
+ global $blog_id, $wpdb;
+ $this->get_accepted_content_type($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);
+ $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);
+
+ $output = $this->get_entry($postID);
+
+ log_app('function',"create_post($postID)");
+ $this->created($postID, $output);
+ }
+
+ function get_post($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);
+
+ }
+
+ function put_post($postID) {
+ global $wpdb;
+
+ // 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;
+ $entry = $GLOBALS['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($parsed->draft) == 'yes') ? false : true;
+
+ extract($entry);
+
+ $post_title = $parsed->title[1];
+ $post_content = $parsed->content[1];
+ $post_excerpt = $parsed->summary[1];
+ $pubtimes = $this->get_publish_time($entry);
+ $post_date = $pubtimes[0];
+ $post_date_gmt = $pubtimes[1];
+
+ // let's not go backwards and make something draft again.
+ if(!$publish && $post_status == 'draft') {
+ $post_status = ($publish) ? 'publish' : 'draft';
+ } elseif($publish) {
+ $post_status = 'publish';
+ }
+
+ $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'post_date', 'post_date_gmt');
+ $this->escape($postdata);
+
+ $result = wp_update_post($postdata);
+
+ if (!$result) {
+ $this->internal_error(__('For some strange yet very annoying reason, this post could not be edited.'));
+ }
+
+ log_app('function',"put_post($postID)");
+ $this->ok();
+ }
+
+ function delete_post($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)");
+ $this->ok();
+ }
+
+ }
+
+ function get_attachment($postID = NULL) {
+ if( !current_user_can( 'upload_files' ) )
+ $this->auth_required( __( 'Sorry, you do not have the right to file uploads on this blog.' ) );
+
+ if (!isset($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);
+ }
+ }
+
+ function create_attachment() {
+ global $wp, $wpdb, $wp_query, $blog_id;
+
+ $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-z]+)|', '$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'];
+ $filename = basename($file);
+
+ $header = apply_filters('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, $post);
+
+ if (!$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)");
+ }
+
+ function put_attachment($postID) {
+ global $wpdb;
+
+ // 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) && trim($parsed->draft) == 'yes') ? false : true;
+
+ extract($entry);
+
+ $post_title = $parsed->title[1];
+ $post_content = $parsed->content[1];
+
+ $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt');
+ $this->escape($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)");
+ $this->ok();
+ }
+
+ function delete_attachment($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.");
+ $this->ok();
+ }
+
+ function get_file($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;
+ }
+
+ function put_file($postID) {
+
+ $type = $this->get_accepted_content_type();
+
+ // 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.'));
+ }
+
+ $location = get_post_meta($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.'));
+
+ $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);
+ $post_date = $pubtimes[0];
+ $post_date_gmt = $pubtimes[1];
+
+ $post_data = compact('ID', 'post_date', 'post_date_gmt');
+ $result = wp_update_post($post_data);
+
+ if (!$result) {
+ $this->internal_error(__('Sorry, your entry could not be posted. Something wrong happened.'));
+ }
+
+ log_app('function',"put_file($postID)");
+ $this->ok();
+ }
+
+ function get_entries_url($page = NULL) {
+ if($GLOBALS['post_type'] == 'attachment') {
+ $path = $this->MEDIA_PATH;
+ } else {
+ $path = $this->ENTRIES_PATH;
+ }
+ $url = get_bloginfo('url') . '/' . $this->script_name . '/' . $path;
+ if(isset($page) && is_int($page)) {
+ $url .= "/$page";
+ }
+ return $url;
+ }
+
+ function the_entries_url($page = NULL) {
+ $url = $this->get_entries_url($page);
+ echo $url;
+ }
+
+ function get_categories_url($page = NULL) {
+ return get_bloginfo('url') . '/' . $this->script_name . '/' . $this->CATEGORIES_PATH;
+ }
+
+ function the_categories_url() {
+ $url = $this->get_categories_url();
+ echo $url;
+ }
+
+ function get_attachments_url($page = NULL) {
+ $url = get_bloginfo('url') . '/' . $this->script_name . '/' . $this->MEDIA_PATH;
+ if(isset($page) && is_int($page)) {
+ $url .= "/$page";
+ }
+ return $url;
+ }
+
+ function the_attachments_url($page = NULL) {
+ $url = $this->get_attachments_url($page);
+ echo $url;
+ }
+
+ function get_service_url() {
+ return get_bloginfo('url') . '/' . $this->script_name . '/' . $this->SERVICE_PATH;
+ }
+
+ function get_entry_url($postID = NULL) {
+ if(!isset($postID)) {
+ global $post;
+ $postID = (int) $GLOBALS['post']->ID;
+ }
+
+ $url = get_bloginfo('url') . '/' . $this->script_name . '/' . $this->ENTRY_PATH . "/$postID";
+
+ log_app('function',"get_entry_url() = $url");
+ return $url;
+ }
+
+ function the_entry_url($postID = NULL) {
+ $url = $this->get_entry_url($postID);
+ echo $url;
+ }
+
+ function get_media_url($postID = NULL) {
+ if(!isset($postID)) {
+ global $post;
+ $postID = (int) $GLOBALS['post']->ID;
+ }
+
+ $url = get_bloginfo('url') . '/' . $this->script_name . '/' . $this->MEDIA_SINGLE_PATH ."/file/$postID";
+
+ log_app('function',"get_media_url() = $url");
+ return $url;
+ }
+
+ function the_media_url($postID = NULL) {
+ $url = $this->get_media_url($postID);
+ echo $url;
+ }
+
+ function set_current_entry($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']))
+ $this->not_found();
+
+ return;
+ }
+
+ function get_posts($page = 1, $post_type = 'post') {
+ log_app('function',"get_posts($page, '$post_type')");
+ $feed = $this->get_feed($page, $post_type);
+ $this->output($feed);
+ }
+
+ 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);
+ }
+
+ function get_feed($page = 1, $post_type = 'post') {
+ global $post, $wp, $wp_query, $posts, $wpdb, $blog_id, $post_cache;
+ log_app('function',"get_feed($page, '$post_type')");
+ ob_start();
+
+ if(!isset($page)) {
+ $page = 1;
+ }
+ $page = (int) $page;
+
+ $count = get_option('posts_per_rss');
+
+ wp('what_to_show=posts&posts_per_page=' . $count . '&offset=' . ($count * ($page-1) ));
+
+ $post = $GLOBALS['post'];
+ $posts = $GLOBALS['posts'];
+ $wp = $GLOBALS['wp'];
+ $wp_query = $GLOBALS['wp_query'];
+ $wpdb = $GLOBALS['wpdb'];
+ $blog_id = (int) $GLOBALS['blog_id'];
+ $post_cache = $GLOBALS['post_cache'];
+ log_app('function',"query_posts(# " . print_r($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')); ?></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 mysql2date('Y', get_lastpostdate('blog')); ?></rights>
+<generator uri="http://wordpress.com/" version="1.0.5-dc">WordPress.com Atom API</generator>
+<?php if ( have_posts() ) {
+ while ( have_posts() ) {
+ the_post();
+ $this->echo_entry();
+ }
+ }
+?></feed>
+<?php
+ $feed = ob_get_contents();
+ ob_end_clean();
+ return $feed;
+ }
+
+ function get_entry($postID, $post_type = 'post') {
+ log_app('function',"get_entry($postID, '$post_type')");
+ ob_start();
+ global $posts, $post, $wp_query, $wp, $wpdb, $blog_id, $post_cache;
+ switch($post_type) {
+ case 'post':
+ $varname = 'p';
+ break;
+ case '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;
+ }
+
+ 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) = $this->prep_content(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_url() && get_the_author_url() != 'http://') { ?>
+ <uri><?php the_author_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) = $this->prep_content(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 foreach(get_the_category() as $category) { ?>
+ <category scheme="<?php bloginfo_rss('home') ?>" term="<?php echo $category->name?>" />
+<?php } ?>
+<?php list($content_type, $content) = $this->prep_content(get_the_excerpt()); ?>
+ <summary type="<?php echo $content_type ?>"><?php echo $content ?></summary>
+</entry>
+<?php }
+
+ function prep_content($data) {
+ if (strpos($data, '<') === false && strpos($data, '&') === false) {
+ return array('text', $data);
+ }
+
+ $parser = xml_parser_create();
+ xml_parse($parser, '<div>' . $data . '</div>', true);
+ $code = xml_get_error_code($parser);
+ xml_parser_free($parser);
+
+ if (!$code) {
+ if (strpos($data, '<') === false) {
+ return array('text', $data);
+ } else {
+ $data = "<div xmlns='http://www.w3.org/1999/xhtml'>$data</div>";
+ return array('xhtml', $data);
+ }
+ }
+
+ if (strpos($data, ']]>') == false) {
+ return array('html', "<![CDATA[$data]]>");
+ } else {
+ return array('html', htmlspecialchars($data));
+ }
+ }
+
+ function ok() {
+ log_app('Status','200: OK');
+ header('Content-Type: text/plain');
+ status_header('200');
+ exit;
+ }
+
+ function no_content() {
+ log_app('Status','204: No Content');
+ header('Content-Type: text/plain');
+ status_header('204');
+ echo "Deleted.";
+ exit;
+ }
+
+ function internal_error($msg = 'Internal Server Error') {
+ log_app('Status','500: Server Error');
+ header('Content-Type: text/plain');
+ status_header('500');
+ echo $msg;
+ exit;
+ }
+
+ function bad_request() {
+ log_app('Status','400: Bad Request');
+ header('Content-Type: text/plain');
+ status_header('400');
+ exit;
+ }
+
+ function length_required() {
+ log_app('Status','411: Length Required');
+ header("HTTP/1.1 411 Length Required");
+ header('Content-Type: text/plain');
+ status_header('411');
+ exit;
+ }
+
+ function invalid_media() {
+ log_app('Status','415: Unsupported Media Type');
+ header("HTTP/1.1 415 Unsupported Media Type");
+ header('Content-Type: text/plain');
+ exit;
+ }
+
+ function not_found() {
+ log_app('Status','404: Not Found');
+ header('Content-Type: text/plain');
+ status_header('404');
+ exit;
+ }
+
+ function not_allowed($allow) {
+ log_app('Status','405: Not Allowed');
+ header('Allow: ' . join(',', $allow));
+ status_header('405');
+ exit;
+ }
+
+ function redirect($url) {
+
+ log_app('Status','302: Redirect');
+ $escaped_url = attribute_escape($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 $content;
+ exit;
+
+ }
+
+
+ function client_error($msg = 'Client Error') {
+ log_app('Status','400: Client Error');
+ header('Content-Type: text/plain');
+ status_header('400');
+ exit;
+ }
+
+ 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 = get_bloginfo('url') . '/' . $this->script_name . "/attachments/$post_ID";
+ break;
+ }
+ header("Content-Type: $this->ATOM_CONTENT_TYPE");
+ if(isset($ctloc))
+ header('Content-Location: ' . $ctloc);
+ header('Location: ' . $edit);
+ status_header('201');
+ echo $content;
+ exit;
+ }
+
+ function auth_required($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: ' . $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 $content;
+ exit;
+ }
+
+ function output($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;
+ }
+
+ 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
+ */
+ function authenticate() {
+ $login_data = array();
+ $already_md5 = false;
+
+ log_app("authenticate()",print_r($_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)));
+ }
+
+ // If Basic Auth is working...
+ if(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
+ $login_data = array('login' => $_SERVER['PHP_AUTH_USER'], 'password' => $_SERVER['PHP_AUTH_PW']);
+ log_app("Basic Auth",$login_data['login']);
+ } else {
+ // else, do cookie-based authentication
+ if (function_exists('wp_get_cookie_login')) {
+ $login_data = wp_get_cookie_login();
+ $already_md5 = true;
+ }
+ }
+
+ // call wp_login and set current user
+ if (!empty($login_data) && wp_login($login_data['login'], $login_data['password'], $already_md5)) {
+ $current_user = new WP_User(0, $login_data['login']);
+ wp_set_current_user($current_user->ID);
+ log_app("authenticate()",$login_data['login']);
+ }
+ }
+
+ function get_accepted_content_type($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;
+ }
+ }
+
+ $this->invalid_media();
+ }
+
+ function process_conditionals() {
+
+ if(empty($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 == $wp_etag)) ) {
+ status_header( 304 );
+ exit;
+ }
+ }
+
+ function rfc3339_str2time($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] . " " . $match[3]);
+ }
+
+ function get_publish_time($entry) {
+
+ $pubtime = $this->rfc3339_str2time($entry->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", $pubtime));
+ }
+ }
+
+}
+
+$server = new AtomServer();
+$server->handle_request();
+
+?>