380 lines
12 KiB
PHP
380 lines
12 KiB
PHP
<?php
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/**
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* WordPress Export Administration API
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* Version number for the export format.
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*
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* Bump this when something changes that might affect compatibility.
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*
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* @since unknown
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* @var string
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*/
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define('WXR_VERSION', '1.0');
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $author
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*/
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function export_wp($author='') {
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global $wpdb, $post_ids, $post, $wp_taxonomies;
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do_action('export_wp');
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$filename = 'wordpress.' . date('Y-m-d') . '.xml';
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header('Content-Description: File Transfer');
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header("Content-Disposition: attachment; filename=$filename");
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header('Content-Type: text/xml; charset=' . get_option('blog_charset'), true);
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$where = '';
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if ( $author and $author != 'all' ) {
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$author_id = (int) $author;
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$where = $wpdb->prepare(" WHERE post_author = %d ", $author_id);
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}
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// grab a snapshot of post IDs, just in case it changes during the export
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$post_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts $where ORDER BY post_date_gmt ASC");
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$categories = (array) get_categories(array('get' => 'all'));
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$tags = (array) get_tags(array('get' => 'all'));
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$custom_taxonomies = $wp_taxonomies;
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unset($custom_taxonomies['category']);
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unset($custom_taxonomies['post_tag']);
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unset($custom_taxonomies['link_category']);
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$custom_taxonomies = array_keys($custom_taxonomies);
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$terms = (array) get_terms($custom_taxonomies, 'get=all');
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $categories
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*/
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function wxr_missing_parents($categories) {
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if ( !is_array($categories) || empty($categories) )
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return array();
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foreach ( $categories as $category )
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$parents[$category->term_id] = $category->parent;
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$parents = array_unique(array_diff($parents, array_keys($parents)));
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if ( $zero = array_search('0', $parents) )
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unset($parents[$zero]);
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return $parents;
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}
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while ( $parents = wxr_missing_parents($categories) ) {
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$found_parents = get_categories(array('include' => join(', ', $parents)));
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if ( is_array($found_parents) && count($found_parents) )
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$categories = array_merge($categories, $found_parents);
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else
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break;
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}
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// Put them in order to be inserted with no child going before its parent
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$pass = 0;
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$passes = 1000 + count($categories);
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while ( ( $cat = array_shift($categories) ) && ++$pass < $passes ) {
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if ( $cat->parent == 0 || isset($cats[$cat->parent]) ) {
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$cats[$cat->term_id] = $cat;
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} else {
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$categories[] = $cat;
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}
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}
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unset($categories);
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/**
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* Place string in CDATA tag.
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*
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* @since unknown
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*
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* @param string $str String to place in XML CDATA tag.
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*/
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function wxr_cdata($str) {
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if ( seems_utf8($str) == false )
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$str = utf8_encode($str);
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// $str = ent2ncr(esc_html($str));
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$str = "<![CDATA[$str" . ( ( substr($str, -1) == ']' ) ? ' ' : '') . "]]>";
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return $str;
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @return string Site URL.
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*/
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function wxr_site_url() {
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global $current_site;
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// mu: the base url
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if ( isset($current_site->domain) ) {
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return 'http://'.$current_site->domain.$current_site->path;
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}
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// wp: the blog url
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else {
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return get_bloginfo_rss('url');
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}
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $c Category Object
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*/
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function wxr_cat_name($c) {
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if ( empty($c->name) )
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return;
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echo '<wp:cat_name>' . wxr_cdata($c->name) . '</wp:cat_name>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $c Category Object
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*/
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function wxr_category_description($c) {
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if ( empty($c->description) )
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return;
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echo '<wp:category_description>' . wxr_cdata($c->description) . '</wp:category_description>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $t Tag Object
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*/
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function wxr_tag_name($t) {
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if ( empty($t->name) )
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return;
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echo '<wp:tag_name>' . wxr_cdata($t->name) . '</wp:tag_name>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $t Tag Object
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*/
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function wxr_tag_description($t) {
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if ( empty($t->description) )
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return;
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echo '<wp:tag_description>' . wxr_cdata($t->description) . '</wp:tag_description>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $t Term Object
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*/
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function wxr_term_name($t) {
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if ( empty($t->name) )
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return;
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echo '<wp:term_name>' . wxr_cdata($t->name) . '</wp:term_name>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param object $t Term Object
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*/
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function wxr_term_description($t) {
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if ( empty($t->description) )
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return;
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echo '<wp:term_description>' . wxr_cdata($t->description) . '</wp:term_description>';
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*/
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function wxr_post_taxonomy() {
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$categories = get_the_category();
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$tags = get_the_tags();
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$the_list = '';
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$filter = 'rss';
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if ( !empty($categories) ) foreach ( (array) $categories as $category ) {
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$cat_name = sanitize_term_field('name', $category->name, $category->term_id, 'category', $filter);
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// for backwards compatibility
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$the_list .= "\n\t\t<category><![CDATA[$cat_name]]></category>\n";
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// forwards compatibility: use a unique identifier for each cat to avoid clashes
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// http://trac.wordpress.org/ticket/5447
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$the_list .= "\n\t\t<category domain=\"category\" nicename=\"{$category->slug}\"><![CDATA[$cat_name]]></category>\n";
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}
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if ( !empty($tags) ) foreach ( (array) $tags as $tag ) {
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$tag_name = sanitize_term_field('name', $tag->name, $tag->term_id, 'post_tag', $filter);
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$the_list .= "\n\t\t<category domain=\"tag\"><![CDATA[$tag_name]]></category>\n";
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// forwards compatibility as above
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$the_list .= "\n\t\t<category domain=\"tag\" nicename=\"{$tag->slug}\"><![CDATA[$tag_name]]></category>\n";
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}
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echo $the_list;
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}
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echo '<?xml version="1.0" encoding="' . get_bloginfo('charset') . '"?' . ">\n";
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?>
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<!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your blog. -->
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<!-- It contains information about your blog's posts, comments, and categories. -->
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<!-- You may use this file to transfer that content from one site to another. -->
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<!-- This file is not intended to serve as a complete backup of your blog. -->
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<!-- To import this information into a WordPress blog follow these steps. -->
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<!-- 1. Log in to that blog as an administrator. -->
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<!-- 2. Go to Tools: Import in the blog's admin panels (or Manage: Import in older versions of WordPress). -->
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<!-- 3. Choose "WordPress" from the list. -->
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<!-- 4. Upload this file using the form provided on that page. -->
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<!-- 5. You will first be asked to map the authors in this export file to users -->
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<!-- on the blog. For each author, you may choose to map to an -->
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<!-- existing user on the blog or to create a new user -->
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<!-- 6. WordPress will then import each of the posts, comments, and categories -->
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<!-- contained in this file into your blog -->
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<?php the_generator('export');?>
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<rss version="2.0"
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xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/"
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xmlns:content="http://purl.org/rss/1.0/modules/content/"
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xmlns:wfw="http://wellformedweb.org/CommentAPI/"
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/"
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>
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<channel>
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<title><?php bloginfo_rss('name'); ?></title>
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<link><?php bloginfo_rss('url') ?></link>
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<description><?php bloginfo_rss("description") ?></description>
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<pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_lastpostmodified('GMT'), false); ?></pubDate>
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<generator>http://wordpress.org/?v=<?php bloginfo_rss('version'); ?></generator>
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<language><?php echo get_option('rss_language'); ?></language>
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<wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version>
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<wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url>
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<wp:base_blog_url><?php bloginfo_rss('url'); ?></wp:base_blog_url>
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<?php if ( $cats ) : foreach ( $cats as $c ) : ?>
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<wp:category><wp:category_nicename><?php echo $c->slug; ?></wp:category_nicename><wp:category_parent><?php echo $c->parent ? $cats[$c->parent]->name : ''; ?></wp:category_parent><?php wxr_cat_name($c); ?><?php wxr_category_description($c); ?></wp:category>
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<?php endforeach; endif; ?>
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<?php if ( $tags ) : foreach ( $tags as $t ) : ?>
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<wp:tag><wp:tag_slug><?php echo $t->slug; ?></wp:tag_slug><?php wxr_tag_name($t); ?><?php wxr_tag_description($t); ?></wp:tag>
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<?php endforeach; endif; ?>
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<?php if ( $terms ) : foreach ( $terms as $t ) : ?>
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<wp:term><wp:term_taxonomy><?php echo $t->taxonomy; ?></wp:term_taxonomy><wp:term_slug><?php echo $t->slug; ?></wp:term_slug><wp:term_parent><?php echo $t->parent ? $custom_taxonomies[$t->parent]->name : ''; ?></wp:term_parent><?php wxr_term_name($t); ?><?php wxr_term_description($t); ?></wp:term>
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<?php endforeach; endif; ?>
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<?php do_action('rss2_head'); ?>
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<?php if ($post_ids) {
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global $wp_query;
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$wp_query->in_the_loop = true; // Fake being in the loop.
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// fetch 20 posts at a time rather than loading the entire table into memory
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while ( $next_posts = array_splice($post_ids, 0, 20) ) {
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$where = "WHERE ID IN (".join(',', $next_posts).")";
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$posts = $wpdb->get_results("SELECT * FROM $wpdb->posts $where ORDER BY post_date_gmt ASC");
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foreach ($posts as $post) {
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// Don't export revisions. They bloat the export.
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if ( 'revision' == $post->post_type )
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continue;
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setup_postdata($post);
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$is_sticky = 0;
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if ( is_sticky( $post->ID ) )
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$is_sticky = 1;
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?>
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<item>
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<title><?php echo apply_filters('the_title_rss', $post->post_title); ?></title>
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<link><?php the_permalink_rss() ?></link>
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<pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_post_time('Y-m-d H:i:s', true), false); ?></pubDate>
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<dc:creator><?php echo wxr_cdata(get_the_author()); ?></dc:creator>
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<?php wxr_post_taxonomy() ?>
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<guid isPermaLink="false"><?php the_guid(); ?></guid>
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<description></description>
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<content:encoded><?php echo wxr_cdata( apply_filters('the_content_export', $post->post_content) ); ?></content:encoded>
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<excerpt:encoded><?php echo wxr_cdata( apply_filters('the_excerpt_export', $post->post_excerpt) ); ?></excerpt:encoded>
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<wp:post_id><?php echo $post->ID; ?></wp:post_id>
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<wp:post_date><?php echo $post->post_date; ?></wp:post_date>
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<wp:post_date_gmt><?php echo $post->post_date_gmt; ?></wp:post_date_gmt>
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<wp:comment_status><?php echo $post->comment_status; ?></wp:comment_status>
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<wp:ping_status><?php echo $post->ping_status; ?></wp:ping_status>
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<wp:post_name><?php echo $post->post_name; ?></wp:post_name>
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<wp:status><?php echo $post->post_status; ?></wp:status>
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<wp:post_parent><?php echo $post->post_parent; ?></wp:post_parent>
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<wp:menu_order><?php echo $post->menu_order; ?></wp:menu_order>
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<wp:post_type><?php echo $post->post_type; ?></wp:post_type>
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<wp:post_password><?php echo $post->post_password; ?></wp:post_password>
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<wp:is_sticky><?php echo $is_sticky; ?></wp:is_sticky>
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<?php
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if ($post->post_type == 'attachment') { ?>
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<wp:attachment_url><?php echo wp_get_attachment_url($post->ID); ?></wp:attachment_url>
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<?php } ?>
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<?php
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$postmeta = $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID) );
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if ( $postmeta ) {
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?>
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<?php foreach( $postmeta as $meta ) { ?>
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<wp:postmeta>
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<wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key>
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<wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
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</wp:postmeta>
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<?php } ?>
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<?php } ?>
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<?php
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$comments = $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d", $post->ID) );
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if ( $comments ) { foreach ( $comments as $c ) { ?>
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<wp:comment>
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<wp:comment_id><?php echo $c->comment_ID; ?></wp:comment_id>
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<wp:comment_author><?php echo wxr_cdata($c->comment_author); ?></wp:comment_author>
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<wp:comment_author_email><?php echo $c->comment_author_email; ?></wp:comment_author_email>
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<wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url>
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<wp:comment_author_IP><?php echo $c->comment_author_IP; ?></wp:comment_author_IP>
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<wp:comment_date><?php echo $c->comment_date; ?></wp:comment_date>
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<wp:comment_date_gmt><?php echo $c->comment_date_gmt; ?></wp:comment_date_gmt>
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<wp:comment_content><?php echo wxr_cdata($c->comment_content) ?></wp:comment_content>
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<wp:comment_approved><?php echo $c->comment_approved; ?></wp:comment_approved>
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<wp:comment_type><?php echo $c->comment_type; ?></wp:comment_type>
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<wp:comment_parent><?php echo $c->comment_parent; ?></wp:comment_parent>
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<wp:comment_user_id><?php echo $c->user_id; ?></wp:comment_user_id>
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</wp:comment>
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<?php } } ?>
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</item>
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<?php } } } ?>
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</channel>
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</rss>
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<?php
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}
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?>
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