'; echo '

'.__('Import WordPress').'

'; } function footer() { echo ''; } function unhtmlentities($string) { // From php.net for < 4.3 compat $trans_tbl = get_html_translation_table(HTML_ENTITIES); $trans_tbl = array_flip($trans_tbl); return strtr($string, $trans_tbl); } function greet() { echo '
'; echo '

'.__('Howdy! Upload your WordPress eXtended RSS (WXR) file and we’ll import the posts, comments, custom fields, and categories into this blog.').'

'; echo '

'.__('Choose a WordPress WXR file to upload, then click Upload file and import.').'

'; wp_import_upload_form("admin.php?import=wordpress&step=1"); echo '
'; } function get_tag( $string, $tag ) { global $wpdb; preg_match("|<$tag.*?>(.*?)|is", $string, $return); $return = preg_replace('|^$|s', '$1', $return[1]); $return = $wpdb->escape( trim( $return ) ); return $return; } function has_gzip() { return is_callable('gzopen'); } function fopen($filename, $mode='r') { if ( $this->has_gzip() ) return gzopen($filename, $mode); return fopen($filename, $mode); } function feof($fp) { if ( $this->has_gzip() ) return gzeof($fp); return feof($fp); } function fgets($fp, $len=8192) { if ( $this->has_gzip() ) return gzgets($fp, $len); return fgets($fp, $len); } function fclose($fp) { if ( $this->has_gzip() ) return gzclose($fp); return fclose($fp); } function get_entries($process_post_func=NULL) { set_magic_quotes_runtime(0); $doing_entry = false; $is_wxr_file = false; $fp = $this->fopen($this->file, 'r'); if ($fp) { while ( !$this->feof($fp) ) { $importline = rtrim($this->fgets($fp)); // this doesn't check that the file is perfectly valid but will at least confirm that it's not the wrong format altogether if ( !$is_wxr_file && preg_match('|xmlns:wp="http://wordpress[.]org/export/\d+[.]\d+/"|', $importline) ) $is_wxr_file = true; if ( false !== strpos($importline, '') ) { preg_match('|(.*?)|is', $importline, $category); $this->categories[] = $category[1]; continue; } if ( false !== strpos($importline, '') ) { preg_match('|(.*?)|is', $importline, $tag); $this->tags[] = $tag[1]; continue; } if ( false !== strpos($importline, '') ) { $this->post = ''; $doing_entry = true; continue; } if ( false !== strpos($importline, '') ) { $doing_entry = false; if ($process_post_func) call_user_func($process_post_func, $this->post); continue; } if ( $doing_entry ) { $this->post .= $importline . "\n"; } } $this->fclose($fp); } return $is_wxr_file; } function get_wp_authors() { // We need to find unique values of author names, while preserving the order, so this function emulates the unique_value(); php function, without the sorting. $temp = $this->allauthornames; $authors[0] = array_shift($temp); $y = count($temp) + 1; for ($x = 1; $x < $y; $x ++) { $next = array_shift($temp); if (!(in_array($next, $authors))) array_push($authors, "$next"); } return $authors; } function get_authors_from_post() { global $current_user; // this will populate $this->author_ids with a list of author_names => user_ids foreach ( $_POST['author_in'] as $i => $in_author_name ) { if ( !empty($_POST['user_select'][$i]) ) { // an existing user was selected in the dropdown list $user = get_userdata( intval($_POST['user_select'][$i]) ); if ( isset($user->ID) ) $this->author_ids[$in_author_name] = $user->ID; } elseif ( $this->allow_create_users() ) { // nothing was selected in the dropdown list, so we'll use the name in the text field $new_author_name = trim($_POST['user_create'][$i]); // if the user didn't enter a name, assume they want to use the same name as in the import file if ( empty($new_author_name) ) $new_author_name = $in_author_name; $user_id = username_exists($new_author_name); if ( !$user_id ) { $user_id = wp_create_user($new_author_name, 'changeme'); } $this->author_ids[$in_author_name] = $user_id; } // failsafe: if the user_id was invalid, default to the current user if ( empty($this->author_ids[$in_author_name]) ) { $this->author_ids[$in_author_name] = intval($current_user->ID); } } } function wp_authors_form() { ?>

admins entries.'); ?>

allow_create_users() ) { echo '

'.__('If a new user is created by WordPress, the password will be set, by default, to "changeme". Quite suggestive, eh? ;)')."

\n"; } $authors = $this->get_wp_authors(); echo '
    '; echo '
    '; wp_nonce_field('import-wordpress'); $j = -1; foreach ($authors as $author) { ++ $j; echo '
  1. '.__('Import author:').' '.$author.'
    '; $this->users_form($j, $author); echo '
    2. '; } if ( $this->allow_fetch_attachments() ) { ?>

'.'
'; echo ''; } function users_form($n, $author) { if ( $this->allow_create_users() ) { printf(__('Create user %1$s or map to existing'), '
'); } else { echo __('Map to existing').'
'; } // keep track of $n => $author name echo ''; $users = get_users_of_blog(); ?> get_entries(array(&$this, 'process_author')); if ( $is_wxr_file ) { $this->wp_authors_form(); } else { echo '

'.__('Invalid file').'

'; echo '

'.__('Please upload a valid WXR (WordPress eXtended RSS) export file.').'

'; } } // fetch the user ID for a given author name, respecting the mapping preferences function checkauthor($author) { global $current_user; if ( !empty($this->author_ids[$author]) ) return $this->author_ids[$author]; // failsafe: map to the current user return $current_user->ID; } function process_categories() { global $wpdb; $cat_names = (array) get_terms('category', 'fields=names'); while ( $c = array_shift($this->categories) ) { $cat_name = trim($this->get_tag( $c, 'wp:cat_name' )); // If the category exists we leave it alone if ( in_array($cat_name, $cat_names) ) continue; $category_nicename = $this->get_tag( $c, 'wp:category_nicename' ); $posts_private = (int) $this->get_tag( $c, 'wp:posts_private' ); $links_private = (int) $this->get_tag( $c, 'wp:links_private' ); $parent = $this->get_tag( $c, 'wp:category_parent' ); if ( empty($parent) ) $category_parent = '0'; else $category_parent = category_exists($parent); $catarr = compact('category_nicename', 'category_parent', 'posts_private', 'links_private', 'posts_private', 'cat_name'); $cat_ID = wp_insert_category($catarr); } } function process_tags() { global $wpdb; $tag_names = (array) get_terms('post_tag', 'fields=names'); while ( $c = array_shift($this->tags) ) { $tag_name = trim($this->get_tag( $c, 'wp:tag_name' )); // If the category exists we leave it alone if ( in_array($tag_name, $tag_names) ) continue; $slug = $this->get_tag( $c, 'wp:tag_slug' ); $description = $this->get_tag( $c, 'wp:tag_description' ); $tagarr = compact('slug', 'description'); $tag_ID = wp_insert_term($tag_name, 'post_tag', $tagarr); } } function process_author($post) { $author = $this->get_tag( $post, 'dc:creator' ); if ($author) $this->allauthornames[] = $author; } function process_posts() { $i = -1; echo '
    '; $this->get_entries(array(&$this, 'process_post')); echo '
'; wp_import_cleanup($this->id); do_action('import_done', 'wordpress'); echo '

'.sprintf(__('All done.').' '.__('Have fun!').'', get_option('home')).'

'; } function process_post($post) { global $wpdb; $post_ID = (int) $this->get_tag( $post, 'wp:post_id' ); if ( $post_ID && !empty($this->post_ids_processed[$post_ID]) ) // Processed already return 0; // There are only ever one of these $post_title = $this->get_tag( $post, 'title' ); $post_date = $this->get_tag( $post, 'wp:post_date' ); $post_date_gmt = $this->get_tag( $post, 'wp:post_date_gmt' ); $comment_status = $this->get_tag( $post, 'wp:comment_status' ); $ping_status = $this->get_tag( $post, 'wp:ping_status' ); $post_status = $this->get_tag( $post, 'wp:status' ); $post_name = $this->get_tag( $post, 'wp:post_name' ); $post_parent = $this->get_tag( $post, 'wp:post_parent' ); $menu_order = $this->get_tag( $post, 'wp:menu_order' ); $post_type = $this->get_tag( $post, 'wp:post_type' ); $post_password = $this->get_tag( $post, 'wp:post_password' ); $guid = $this->get_tag( $post, 'guid' ); $post_author = $this->get_tag( $post, 'dc:creator' ); $post_content = $this->get_tag( $post, 'content:encoded' ); $post_content = preg_replace('|<(/?[A-Z]+)|e', "'<' . strtolower('$1')", $post_content); $post_content = str_replace('
', '
', $post_content); $post_content = str_replace('
', '
', $post_content); preg_match_all('|(.*?)|is', $post, $tags); $tags = $tags[1]; $tag_index = 0; foreach ($tags as $tag) { $tags[$tag_index] = $wpdb->escape($this->unhtmlentities(str_replace(array (''), '', $tag))); $tag_index++; } preg_match_all('|(.*?)|is', $post, $categories); $categories = $categories[1]; $cat_index = 0; foreach ($categories as $category) { $categories[$cat_index] = $wpdb->escape($this->unhtmlentities(str_replace(array (''), '', $category))); $cat_index++; } $post_exists = post_exists($post_title, '', $post_date); if ( $post_exists ) { echo '
  • '; printf(__('Post %s already exists.'), stripslashes($post_title)); } else { // If it has parent, process parent first. $post_parent = (int) $post_parent; if ($post_parent) { // if we already know the parent, map it to the local ID if ( $parent = $this->post_ids_processed[$post_parent] ) { $post_parent = $parent; // new ID of the parent } else { // record the parent for later $this->orphans[intval($post_ID)] = $post_parent; } } echo '
  • '; $post_author = $this->checkauthor($post_author); //just so that if a post already exists, new users are not created by checkauthor $postdata = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_status', 'post_name', 'comment_status', 'ping_status', 'guid', 'post_parent', 'menu_order', 'post_type', 'post_password'); if ($post_type == 'attachment') { $remote_url = $this->get_tag( $post, 'wp:attachment_url' ); if ( !$remote_url ) $remote_url = $guid; $comment_post_ID = $post_id = $this->process_attachment($postdata, $remote_url); if ( !$post_id or is_wp_error($post_id) ) return $post_id; } else { printf(__('Importing post %s...'), stripslashes($post_title)); $comment_post_ID = $post_id = wp_insert_post($postdata); } if ( is_wp_error( $post_id ) ) return $post_id; // Memorize old and new ID. if ( $post_id && $post_ID ) { $this->post_ids_processed[intval($post_ID)] = intval($post_id); } // Add categories. if (count($categories) > 0) { $post_cats = array(); foreach ($categories as $category) { $slug = sanitize_term_field('slug', $category, 0, 'category', 'db'); $cat = get_term_by('slug', $slug, 'category'); $cat_ID = 0; if ( ! empty($cat) ) $cat_ID = $cat->term_id; if ($cat_ID == 0) { $category = $wpdb->escape($category); $cat_ID = wp_insert_category(array('cat_name' => $category)); } $post_cats[] = $cat_ID; } wp_set_post_categories($post_id, $post_cats); } // Add tags. if (count($tags) > 0) { $post_tags = array(); foreach ($tags as $tag) { $slug = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db'); $tag_obj = get_term_by('slug', $slug, 'post_tag'); $tag_id = 0; if ( ! empty($tag_obj) ) $tag_id = $tag_obj->term_id; if ( $tag_id == 0 ) { $tag = $wpdb->escape($tag); $tag_id = wp_insert_term($tag, 'post_tag'); $tag_id = $tag_id['term_id']; } $post_tags[] = intval($tag_id); } wp_set_post_tags($post_id, $post_tags); } } // Now for comments preg_match_all('|(.*?)|is', $post, $comments); $comments = $comments[1]; $num_comments = 0; if ( $comments) { foreach ($comments as $comment) { $comment_author = $this->get_tag( $comment, 'wp:comment_author'); $comment_author_email = $this->get_tag( $comment, 'wp:comment_author_email'); $comment_author_IP = $this->get_tag( $comment, 'wp:comment_author_IP'); $comment_author_url = $this->get_tag( $comment, 'wp:comment_author_url'); $comment_date = $this->get_tag( $comment, 'wp:comment_date'); $comment_date_gmt = $this->get_tag( $comment, 'wp:comment_date_gmt'); $comment_content = $this->get_tag( $comment, 'wp:comment_content'); $comment_approved = $this->get_tag( $comment, 'wp:comment_approved'); $comment_type = $this->get_tag( $comment, 'wp:comment_type'); $comment_parent = $this->get_tag( $comment, 'wp:comment_parent'); // if this is a new post we can skip the comment_exists() check if ( !$post_exists || !comment_exists($comment_author, $comment_date) ) { $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_url', 'comment_author_email', 'comment_author_IP', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_approved', 'comment_type', 'comment_parent'); wp_insert_comment($commentdata); $num_comments++; } } } if ( $num_comments ) printf(' '.__ngettext('(%s comment)', '(%s comments)', $num_comments), $num_comments); // Now for post meta preg_match_all('|(.*?)|is', $post, $postmeta); $postmeta = $postmeta[1]; if ( $postmeta) { foreach ($postmeta as $p) { $key = $this->get_tag( $p, 'wp:meta_key' ); $value = $this->get_tag( $p, 'wp:meta_value' ); $value = stripslashes($value); // add_post_meta() will escape. $this->process_post_meta($post_id, $key, $value); } } do_action('import_post_added', $post_id); print "
    • \n"; } function process_post_meta($post_id, $key, $value) { // the filter can return false to skip a particular metadata key $_key = apply_filters('import_post_meta_key', $key); if ( $_key ) { add_post_meta( $post_id, $_key, $value ); do_action('import_post_meta', $post_id, $_key, $value); } } function process_attachment($postdata, $remote_url) { if ($this->fetch_attachments and $remote_url) { printf( __('Importing attachment %s... '), htmlspecialchars($remote_url) ); $upload = $this->fetch_remote_file($postdata, $remote_url); if ( is_wp_error($upload) ) { printf( __('Remote file error: %s'), htmlspecialchars($upload->get_error_message()) ); return $upload; } else { print '('.size_format(filesize($upload['file'])).')'; } if ( $info = wp_check_filetype($upload['file']) ) { $postdata['post_mime_type'] = $info['type']; } else { print __('Invalid file type'); return; } $postdata['guid'] = $upload['url']; // as per wp-admin/includes/upload.php $post_id = wp_insert_attachment($postdata, $upload['file']); wp_update_attachment_metadata( $post_id, wp_generate_attachment_metadata( $post_id, $upload['file'] ) ); // remap the thumbnail url. this isn't perfect because we're just guessing the original url. if ( preg_match('@^image/@', $info['type']) && $thumb_url = wp_get_attachment_thumb_url($post_id) ) { $parts = pathinfo($remote_url); $ext = $parts['extension']; $name = basename($parts['basename'], ".{$ext}"); $this->url_remap[$parts['dirname'] . '/' . $name . '.thumbnail.' . $ext] = $thumb_url; } return $post_id; } else { printf( __('Skipping attachment %s'), htmlspecialchars($remote_url) ); } } function fetch_remote_file($post, $url) { $upload = wp_upload_dir($post['post_date']); // extract the file name and extension from the url $file_name = basename($url); // get placeholder file in the upload dir with a unique sanitized filename $upload = wp_upload_bits( $file_name, 0, '', $post['post_date']); if ( $upload['error'] ) { echo $upload['error']; return new WP_Error( 'upload_dir_error', $upload['error'] ); } // fetch the remote url and write it to the placeholder file $headers = wp_get_http($url, $upload['file']); // make sure the fetch was successful if ( $headers['response'] != '200' ) { @unlink($upload['file']); return new WP_Error( 'import_file_error', sprintf(__('Remote file returned error response %d'), intval($headers['response'])) ); } elseif ( isset($headers['content-length']) && filesize($upload['file']) != $headers['content-length'] ) { @unlink($upload['file']); return new WP_Error( 'import_file_error', __('Remote file is incorrect size') ); } $max_size = $this->max_attachment_size(); if ( !empty($max_size) and filesize($upload['file']) > $max_size ) { @unlink($upload['file']); return new WP_Error( 'import_file_error', sprintf(__('Remote file is too large, limit is %s', size_format($max_size))) ); } // keep track of the old and new urls so we can substitute them later $this->url_remap[$url] = $upload['url']; // if the remote url is redirected somewhere else, keep track of the destination too if ( $headers['x-final-location'] != $url ) $this->url_remap[$headers['x-final-location']] = $upload['url']; return $upload; } // sort by strlen, longest string first function cmpr_strlen($a, $b) { return strlen($b) - strlen($a); } // update url references in post bodies to point to the new local files function backfill_attachment_urls() { // make sure we do the longest urls first, in case one is a substring of another uksort($this->url_remap, array(&$this, 'cmpr_strlen')); global $wpdb; foreach ($this->url_remap as $from_url => $to_url) { // remap urls in post_content $wpdb->query( $wpdb->prepare("UPDATE {$wpdb->posts} SET post_content = REPLACE(post_content, '%s', '%s')", $from_url, $to_url) ); // remap enclosure urls $result = $wpdb->query( $wpdb->prepare("UPDATE {$wpdb->postmeta} SET meta_value = REPLACE(meta_value, '%s', '%s') WHERE meta_key='enclosure'", $from_url, $to_url) ); } } // update the post_parent of orphans now that we know the local id's of all parents function backfill_parents() { global $wpdb; foreach ($this->orphans as $child_id => $parent_id) { $local_child_id = $this->post_ids_processed[$child_id]; $local_parent_id = $this->post_ids_processed[$parent_id]; if ($local_child_id and $local_parent_id) { $wpdb->query( $wpdb->prepare("UPDATE {$wpdb->posts} SET post_parent = %d WHERE ID = %d", $local_parent_id, $local_child_id)); } } } function is_valid_meta_key($key) { // skip _wp_attached_file metadata since we'll regenerate it from scratch if ( $key == '_wp_attached_file' ) return false; return $key; } // give the user the option of creating new users to represent authors in the import file? function allow_create_users() { return apply_filters('import_allow_create_users', true); } // give the user the option of downloading and importing attached files function allow_fetch_attachments() { return apply_filters('import_allow_fetch_attachments', true); } function max_attachment_size() { // can be overridden with a filter - 0 means no limit return apply_filters('import_attachment_size_limit', 0); } function import_start() { wp_defer_term_counting(true); wp_defer_comment_counting(true); do_action('import_start'); } function import_end() { do_action('import_end'); // clear the caches after backfilling foreach ($this->post_ids_processed as $post_id) clean_post_cache($post_id); wp_defer_term_counting(false); wp_defer_comment_counting(false); } function import($id, $fetch_attachments = false) { $this->id = (int) $id; $this->fetch_attachments = ($this->allow_fetch_attachments() && (bool) $fetch_attachments); add_filter('import_post_meta_key', array($this, 'is_valid_meta_key')); $file = get_attached_file($this->id); $this->import_file($file); } function import_file($file) { $this->file = $file; $this->import_start(); $this->get_authors_from_post(); $this->get_entries(); $this->process_categories(); $this->process_tags(); $result = $this->process_posts(); $this->backfill_parents(); $this->backfill_attachment_urls(); $this->import_end(); if ( is_wp_error( $result ) ) return $result; } function handle_upload() { $file = wp_import_handle_upload(); if ( isset($file['error']) ) { echo '

    '.__('Sorry, there has been an error.').'

    '; echo '

    ' . $file['error'] . '

    '; return false; } $this->file = $file['file']; $this->id = (int) $file['id']; return true; } function dispatch() { if (empty ($_GET['step'])) $step = 0; else $step = (int) $_GET['step']; $this->header(); switch ($step) { case 0 : $this->greet(); break; case 1 : check_admin_referer('import-upload'); if ( $this->handle_upload() ) $this->select_authors(); break; case 2: check_admin_referer('import-wordpress'); $result = $this->import( $_GET['id'], $_POST['attachments'] ); if ( is_wp_error( $result ) ) echo $result->get_error_message(); break; } $this->footer(); } function WP_Import() { // Nothing. } } $wp_import = new WP_Import(); register_importer('wordpress', 'WordPress', __('Import posts, comments, custom fields, pages, and categories from a WordPress export file'), array ($wp_import, 'dispatch')); ?>