410 lines
14 KiB
PHP
410 lines
14 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 $args
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*/
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function export_wp( $args = array() ) {
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global $wpdb, $post_ids, $post, $wp_taxonomies;
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if ( ! is_array( $args ) )
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$args = array( 'author' => $args );
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$defaults = array( 'author' => null, 'taxonomy' => null, 'post_type' => null, 'post_status' => null, 'start_date' => null, 'end_date' => null );
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$args = wp_parse_args( $args, $defaults );
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extract($args);
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do_action('export_wp');
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if( strlen( $start_date ) > 4 && strlen( $end_date ) > 4 )
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$filename = 'wordpress.' . $start_date . '.' . $end_date . '.xml';
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else
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$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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if ( $post_type && $post_type != 'all' )
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$where = $wpdb->prepare("WHERE post_type = %s ", $post_type);
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else
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$where = "WHERE post_type != 'revision' ";
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if ( $author && $author != 'all' ) {
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$author_id = (int) $author;
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$where .= $wpdb->prepare( "AND post_author = %d ", $author_id );
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}
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if ( $start_date && $start_date != 'all' )
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$where .= $wpdb->prepare( "AND post_date >= %s ", $start_date );
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if ( $end_date && $end_date != 'all' )
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$where .= $wpdb->prepare( "AND post_date < %s ", $end_date );
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if ( $taxonomy && is_array( $taxonomy ) ) {
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foreach ( $taxonomy as $term_id ) {
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if ( $term_id != 'all' )
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$where .= $wpdb->prepare( "AND ID IN (SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d) ", $term_id );
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}
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}
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if ( $post_status && $post_status != 'all' )
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$where .= $wpdb->prepare( "AND post_status = %s", $status );
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// grab a snapshot of post IDs, just in case it changes during the export
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$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, array( '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] = $category->parent;
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}
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$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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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 network_home_url();
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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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* {@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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global $post;
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$the_list = '';
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$filter = 'rss';
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$taxonomies = get_object_taxonomies( 'post' );
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$terms = wp_get_post_terms( $post->ID, $taxonomies );
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foreach ( (array) $terms as $term ) {
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$domain = ( 'post_tag' == $term->taxonomy ) ? 'tag' : $term->taxonomy;
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$term_name = sanitize_term_field( 'name', $term->name, $term->term_id, $term->taxonomy, $filter );
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// Back compat.
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if ( 'category' == $term->taxonomy )
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$the_list .= "\n\t\t<category><![CDATA[$term_name]]></category>\n";
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elseif ( 'post_tag' == $term->taxonomy )
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$the_list .= "\n\t\t<category domain=\"$domain\"><![CDATA[$term_name]]></category>\n";
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// forwards compatibility as above
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$the_list .= "\n\t\t<category domain=\"$domain\" nicename=\"{$term->slug}\"><![CDATA[$term_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 $where ORDER BY post_date_gmt ASC" );
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// Begin Loop
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foreach ($posts as $post) {
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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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}
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}
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} ?>
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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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