diff -r 000000000000 -r d970ebf37754 wp/wp-admin/includes/export.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-admin/includes/export.php	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,437 @@
+<?php
+/**
+ * WordPress Export Administration API
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+/**
+ * Version number for the export format.
+ *
+ * Bump this when something changes that might affect compatibility.
+ *
+ * @since 2.5.0
+ */
+define( 'WXR_VERSION', '1.2' );
+
+/**
+ * Generates the WXR export file for download
+ *
+ * @since 2.1.0
+ *
+ * @param array $args Filters defining what should be included in the export
+ */
+function export_wp( $args = array() ) {
+	global $wpdb, $post;
+
+	$defaults = array( 'content' => 'all', 'author' => false, 'category' => false,
+		'start_date' => false, 'end_date' => false, 'status' => false,
+	);
+	$args = wp_parse_args( $args, $defaults );
+
+	do_action( 'export_wp' );
+
+	$sitename = sanitize_key( get_bloginfo( 'name' ) );
+	if ( ! empty($sitename) ) $sitename .= '.';
+	$filename = $sitename . 'wordpress.' . date( 'Y-m-d' ) . '.xml';
+
+	header( 'Content-Description: File Transfer' );
+	header( 'Content-Disposition: attachment; filename=' . $filename );
+	header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true );
+
+	if ( 'all' != $args['content'] && post_type_exists( $args['content'] ) ) {
+		$ptype = get_post_type_object( $args['content'] );
+		if ( ! $ptype->can_export )
+			$args['content'] = 'post';
+
+		$where = $wpdb->prepare( "{$wpdb->posts}.post_type = %s", $args['content'] );
+	} else {
+		$post_types = get_post_types( array( 'can_export' => true ) );
+		$esses = array_fill( 0, count($post_types), '%s' );
+		$where = $wpdb->prepare( "{$wpdb->posts}.post_type IN (" . implode( ',', $esses ) . ')', $post_types );
+	}
+
+	if ( $args['status'] && ( 'post' == $args['content'] || 'page' == $args['content'] ) )
+		$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_status = %s", $args['status'] );
+	else
+		$where .= " AND {$wpdb->posts}.post_status != 'auto-draft'";
+
+	$join = '';
+	if ( $args['category'] && 'post' == $args['content'] ) {
+		if ( $term = term_exists( $args['category'], 'category' ) ) {
+			$join = "INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)";
+			$where .= $wpdb->prepare( " AND {$wpdb->term_relationships}.term_taxonomy_id = %d", $term['term_taxonomy_id'] );
+		}
+	}
+
+	if ( 'post' == $args['content'] || 'page' == $args['content'] ) {
+		if ( $args['author'] )
+			$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $args['author'] );
+
+		if ( $args['start_date'] )
+			$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date >= %s", date( 'Y-m-d', strtotime($args['start_date']) ) );
+
+		if ( $args['end_date'] )
+			$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date < %s", date( 'Y-m-d', strtotime('+1 month', strtotime($args['end_date'])) ) );
+	}
+
+	// grab a snapshot of post IDs, just in case it changes during the export
+	$post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" );
+
+	// get the requested terms ready, empty unless posts filtered by category or all content
+	$cats = $tags = $terms = array();
+	if ( isset( $term ) && $term ) {
+		$cat = get_term( $term['term_id'], 'category' );
+		$cats = array( $cat->term_id => $cat );
+		unset( $term, $cat );
+	} else if ( 'all' == $args['content'] ) {
+		$categories = (array) get_categories( array( 'get' => 'all' ) );
+		$tags = (array) get_tags( array( 'get' => 'all' ) );
+
+		$custom_taxonomies = get_taxonomies( array( '_builtin' => false ) );
+		$custom_terms = (array) get_terms( $custom_taxonomies, array( 'get' => 'all' ) );
+
+		// put categories in order with no child going before its parent
+		while ( $cat = array_shift( $categories ) ) {
+			if ( $cat->parent == 0 || isset( $cats[$cat->parent] ) )
+				$cats[$cat->term_id] = $cat;
+			else
+				$categories[] = $cat;
+		}
+
+		// put terms in order with no child going before its parent
+		while ( $t = array_shift( $custom_terms ) ) {
+			if ( $t->parent == 0 || isset( $terms[$t->parent] ) )
+				$terms[$t->term_id] = $t;
+			else
+				$custom_terms[] = $t;
+		}
+
+		unset( $categories, $custom_taxonomies, $custom_terms );
+	}
+
+	/**
+	 * Wrap given string in XML CDATA tag.
+	 *
+	 * @since 2.1.0
+	 *
+	 * @param string $str String to wrap in XML CDATA tag.
+	 * @return string
+	 */
+	function wxr_cdata( $str ) {
+		if ( seems_utf8( $str ) == false )
+			$str = utf8_encode( $str );
+
+		// $str = ent2ncr(esc_html($str));
+		$str = '<![CDATA[' . str_replace( ']]>', ']]]]><![CDATA[>', $str ) . ']]>';
+
+		return $str;
+	}
+
+	/**
+	 * Return the URL of the site
+	 *
+	 * @since 2.5.0
+	 *
+	 * @return string Site URL.
+	 */
+	function wxr_site_url() {
+		// ms: the base url
+		if ( is_multisite() )
+			return network_home_url();
+		// wp: the blog url
+		else
+			return get_bloginfo_rss( 'url' );
+	}
+
+	/**
+	 * Output a cat_name XML tag from a given category object
+	 *
+	 * @since 2.1.0
+	 *
+	 * @param object $category Category Object
+	 */
+	function wxr_cat_name( $category ) {
+		if ( empty( $category->name ) )
+			return;
+
+		echo '<wp:cat_name>' . wxr_cdata( $category->name ) . '</wp:cat_name>';
+	}
+
+	/**
+	 * Output a category_description XML tag from a given category object
+	 *
+	 * @since 2.1.0
+	 *
+	 * @param object $category Category Object
+	 */
+	function wxr_category_description( $category ) {
+		if ( empty( $category->description ) )
+			return;
+
+		echo '<wp:category_description>' . wxr_cdata( $category->description ) . '</wp:category_description>';
+	}
+
+	/**
+	 * Output a tag_name XML tag from a given tag object
+	 *
+	 * @since 2.3.0
+	 *
+	 * @param object $tag Tag Object
+	 */
+	function wxr_tag_name( $tag ) {
+		if ( empty( $tag->name ) )
+			return;
+
+		echo '<wp:tag_name>' . wxr_cdata( $tag->name ) . '</wp:tag_name>';
+	}
+
+	/**
+	 * Output a tag_description XML tag from a given tag object
+	 *
+	 * @since 2.3.0
+	 *
+	 * @param object $tag Tag Object
+	 */
+	function wxr_tag_description( $tag ) {
+		if ( empty( $tag->description ) )
+			return;
+
+		echo '<wp:tag_description>' . wxr_cdata( $tag->description ) . '</wp:tag_description>';
+	}
+
+	/**
+	 * Output a term_name XML tag from a given term object
+	 *
+	 * @since 2.9.0
+	 *
+	 * @param object $term Term Object
+	 */
+	function wxr_term_name( $term ) {
+		if ( empty( $term->name ) )
+			return;
+
+		echo '<wp:term_name>' . wxr_cdata( $term->name ) . '</wp:term_name>';
+	}
+
+	/**
+	 * Output a term_description XML tag from a given term object
+	 *
+	 * @since 2.9.0
+	 *
+	 * @param object $term Term Object
+	 */
+	function wxr_term_description( $term ) {
+		if ( empty( $term->description ) )
+			return;
+
+		echo '<wp:term_description>' . wxr_cdata( $term->description ) . '</wp:term_description>';
+	}
+
+	/**
+	 * Output list of authors with posts
+	 *
+	 * @since 3.1.0
+	 */
+	function wxr_authors_list() {
+		global $wpdb;
+
+		$authors = array();
+		$results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft'" );
+		foreach ( (array) $results as $result )
+			$authors[] = get_userdata( $result->post_author );
+
+		$authors = array_filter( $authors );
+
+		foreach ( $authors as $author ) {
+			echo "\t<wp:author>";
+			echo '<wp:author_id>' . $author->ID . '</wp:author_id>';
+			echo '<wp:author_login>' . $author->user_login . '</wp:author_login>';
+			echo '<wp:author_email>' . $author->user_email . '</wp:author_email>';
+			echo '<wp:author_display_name>' . wxr_cdata( $author->display_name ) . '</wp:author_display_name>';
+			echo '<wp:author_first_name>' . wxr_cdata( $author->user_firstname ) . '</wp:author_first_name>';
+			echo '<wp:author_last_name>' . wxr_cdata( $author->user_lastname ) . '</wp:author_last_name>';
+			echo "</wp:author>\n";
+		}
+	}
+
+	/**
+	 * Ouput all navigation menu terms
+	 *
+	 * @since 3.1.0
+	 */
+	function wxr_nav_menu_terms() {
+		$nav_menus = wp_get_nav_menus();
+		if ( empty( $nav_menus ) || ! is_array( $nav_menus ) )
+			return;
+
+		foreach ( $nav_menus as $menu ) {
+			echo "\t<wp:term><wp:term_id>{$menu->term_id}</wp:term_id><wp:term_taxonomy>nav_menu</wp:term_taxonomy><wp:term_slug>{$menu->slug}</wp:term_slug>";
+			wxr_term_name( $menu );
+			echo "</wp:term>\n";
+		}
+	}
+
+	/**
+	 * Output list of taxonomy terms, in XML tag format, associated with a post
+	 *
+	 * @since 2.3.0
+	 */
+	function wxr_post_taxonomy() {
+		$post = get_post();
+
+		$taxonomies = get_object_taxonomies( $post->post_type );
+		if ( empty( $taxonomies ) )
+			return;
+		$terms = wp_get_object_terms( $post->ID, $taxonomies );
+
+		foreach ( (array) $terms as $term ) {
+			echo "\t\t<category domain=\"{$term->taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "</category>\n";
+		}
+	}
+
+	function wxr_filter_postmeta( $return_me, $meta_key ) {
+		if ( '_edit_lock' == $meta_key )
+			$return_me = true;
+		return $return_me;
+	}
+	add_filter( 'wxr_export_skip_postmeta', 'wxr_filter_postmeta', 10, 2 );
+
+	echo '<?xml version="1.0" encoding="' . get_bloginfo('charset') . "\" ?>\n";
+
+	?>
+<!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. -->
+<!-- It contains information about your site's posts, pages, comments, categories, and other content. -->
+<!-- You may use this file to transfer that content from one site to another. -->
+<!-- This file is not intended to serve as a complete backup of your site. -->
+
+<!-- To import this information into a WordPress site follow these steps: -->
+<!-- 1. Log in to that site as an administrator. -->
+<!-- 2. Go to Tools: Import in the WordPress admin panel. -->
+<!-- 3. Install the "WordPress" importer from the list. -->
+<!-- 4. Activate & Run Importer. -->
+<!-- 5. Upload this file using the form provided on that page. -->
+<!-- 6. You will first be asked to map the authors in this export file to users -->
+<!--    on the site. For each author, you may choose to map to an -->
+<!--    existing user on the site or to create a new user. -->
+<!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. -->
+<!--    contained in this file into your site. -->
+
+<?php the_generator( 'export' ); ?>
+<rss version="2.0"
+	xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/"
+	xmlns:content="http://purl.org/rss/1.0/modules/content/"
+	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
+	xmlns:dc="http://purl.org/dc/elements/1.1/"
+	xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/"
+>
+
+<channel>
+	<title><?php bloginfo_rss( 'name' ); ?></title>
+	<link><?php bloginfo_rss( 'url' ); ?></link>
+	<description><?php bloginfo_rss( 'description' ); ?></description>
+	<pubDate><?php echo date( 'D, d M Y H:i:s +0000' ); ?></pubDate>
+	<language><?php bloginfo_rss( 'language' ); ?></language>
+	<wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version>
+	<wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url>
+	<wp:base_blog_url><?php bloginfo_rss( 'url' ); ?></wp:base_blog_url>
+
+<?php wxr_authors_list(); ?>
+
+<?php foreach ( $cats as $c ) : ?>
+	<wp:category><wp:term_id><?php echo $c->term_id ?></wp:term_id><wp:category_nicename><?php echo $c->slug; ?></wp:category_nicename><wp:category_parent><?php echo $c->parent ? $cats[$c->parent]->slug : ''; ?></wp:category_parent><?php wxr_cat_name( $c ); ?><?php wxr_category_description( $c ); ?></wp:category>
+<?php endforeach; ?>
+<?php foreach ( $tags as $t ) : ?>
+	<wp:tag><wp:term_id><?php echo $t->term_id ?></wp:term_id><wp:tag_slug><?php echo $t->slug; ?></wp:tag_slug><?php wxr_tag_name( $t ); ?><?php wxr_tag_description( $t ); ?></wp:tag>
+<?php endforeach; ?>
+<?php foreach ( $terms as $t ) : ?>
+	<wp:term><wp:term_id><?php echo $t->term_id ?></wp:term_id><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 ? $terms[$t->parent]->slug : ''; ?></wp:term_parent><?php wxr_term_name( $t ); ?><?php wxr_term_description( $t ); ?></wp:term>
+<?php endforeach; ?>
+<?php if ( 'all' == $args['content'] ) wxr_nav_menu_terms(); ?>
+
+	<?php do_action( 'rss2_head' ); ?>
+
+<?php if ( $post_ids ) {
+	global $wp_query;
+	$wp_query->in_the_loop = true; // Fake being in the loop.
+
+	// fetch 20 posts at a time rather than loading the entire table into memory
+	while ( $next_posts = array_splice( $post_ids, 0, 20 ) ) {
+	$where = 'WHERE ID IN (' . join( ',', $next_posts ) . ')';
+	$posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" );
+
+	// Begin Loop
+	foreach ( $posts as $post ) {
+		setup_postdata( $post );
+		$is_sticky = is_sticky( $post->ID ) ? 1 : 0;
+?>
+	<item>
+		<?php /** This filter is documented in wp-includes/feed.php */ ?>
+		<title><?php echo apply_filters( 'the_title_rss', $post->post_title ); ?></title>
+		<link><?php the_permalink_rss() ?></link>
+		<pubDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_post_time( 'Y-m-d H:i:s', true ), false ); ?></pubDate>
+		<dc:creator><?php echo wxr_cdata( get_the_author_meta( 'login' ) ); ?></dc:creator>
+		<guid isPermaLink="false"><?php the_guid(); ?></guid>
+		<description></description>
+		<content:encoded><?php echo wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) ); ?></content:encoded>
+		<excerpt:encoded><?php echo wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) ); ?></excerpt:encoded>
+		<wp:post_id><?php echo $post->ID; ?></wp:post_id>
+		<wp:post_date><?php echo $post->post_date; ?></wp:post_date>
+		<wp:post_date_gmt><?php echo $post->post_date_gmt; ?></wp:post_date_gmt>
+		<wp:comment_status><?php echo $post->comment_status; ?></wp:comment_status>
+		<wp:ping_status><?php echo $post->ping_status; ?></wp:ping_status>
+		<wp:post_name><?php echo $post->post_name; ?></wp:post_name>
+		<wp:status><?php echo $post->post_status; ?></wp:status>
+		<wp:post_parent><?php echo $post->post_parent; ?></wp:post_parent>
+		<wp:menu_order><?php echo $post->menu_order; ?></wp:menu_order>
+		<wp:post_type><?php echo $post->post_type; ?></wp:post_type>
+		<wp:post_password><?php echo $post->post_password; ?></wp:post_password>
+		<wp:is_sticky><?php echo $is_sticky; ?></wp:is_sticky>
+<?php	if ( $post->post_type == 'attachment' ) : ?>
+		<wp:attachment_url><?php echo wp_get_attachment_url( $post->ID ); ?></wp:attachment_url>
+<?php 	endif; ?>
+<?php 	wxr_post_taxonomy(); ?>
+<?php	$postmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID ) );
+		foreach ( $postmeta as $meta ) :
+			if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) )
+				continue;
+		?>
+		<wp:postmeta>
+			<wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key>
+			<wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
+		</wp:postmeta>
+<?php	endforeach; ?>
+<?php	$comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) );
+		foreach ( $comments as $c ) : ?>
+		<wp:comment>
+			<wp:comment_id><?php echo $c->comment_ID; ?></wp:comment_id>
+			<wp:comment_author><?php echo wxr_cdata( $c->comment_author ); ?></wp:comment_author>
+			<wp:comment_author_email><?php echo $c->comment_author_email; ?></wp:comment_author_email>
+			<wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url>
+			<wp:comment_author_IP><?php echo $c->comment_author_IP; ?></wp:comment_author_IP>
+			<wp:comment_date><?php echo $c->comment_date; ?></wp:comment_date>
+			<wp:comment_date_gmt><?php echo $c->comment_date_gmt; ?></wp:comment_date_gmt>
+			<wp:comment_content><?php echo wxr_cdata( $c->comment_content ) ?></wp:comment_content>
+			<wp:comment_approved><?php echo $c->comment_approved; ?></wp:comment_approved>
+			<wp:comment_type><?php echo $c->comment_type; ?></wp:comment_type>
+			<wp:comment_parent><?php echo $c->comment_parent; ?></wp:comment_parent>
+			<wp:comment_user_id><?php echo $c->user_id; ?></wp:comment_user_id>
+<?php		$c_meta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->commentmeta WHERE comment_id = %d", $c->comment_ID ) );
+			foreach ( $c_meta as $meta ) : ?>
+			<wp:commentmeta>
+				<wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key>
+				<wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
+			</wp:commentmeta>
+<?php		endforeach; ?>
+		</wp:comment>
+<?php	endforeach; ?>
+	</item>
+<?php
+	}
+	}
+} ?>
+</channel>
+</rss>
+<?php
+}