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- <?php
- /**
- * Modified version of the WordPress Export Administration API
- * that lets us export single posts and selected groups of posts.
- *
- * @package WordPress
- * @subpackage Administration
- */
- /**
- * Generates the WXR export file for download.
- *
- * @since 2.1.0
- *
- * @global wpdb $wpdb
- * @global WP_Post $post
- *
- * @param array $post_ids
- */
- function fl_export_wp( $post_ids = array() ) {
- global $wpdb, $post;
- if ( empty( $post_ids ) ) {
- return;
- }
- $sitename = sanitize_key( get_bloginfo( 'name' ) );
- if ( ! empty( $sitename ) ) {
- $sitename .= '.';
- }
- $date = date( 'Y-m-d' );
- $wp_filename = $sitename . 'wordpress.' . $date . '.xml';
- /**
- * Filter the export filename.
- *
- * @since 4.4.0
- *
- * @param string $wp_filename The name of the file for download.
- * @param string $sitename The site name.
- * @param string $date Today's date, formatted.
- */
- $filename = apply_filters( 'export_wp_filename', $wp_filename, $sitename, $date );
- header( 'Content-Description: File Transfer' );
- header( 'Content-Disposition: attachment; filename=' . $filename );
- header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true );
- /**
- * 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 ) ) {
- $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() {
- // Multisite: the base URL.
- if ( is_multisite() ) {
- return network_home_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
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param array $post_ids Array of post IDs to filter the query by. Optional.
- */
- function wxr_authors_list( array $post_ids = null ) {
- global $wpdb;
- if ( ! empty( $post_ids ) ) {
- $post_ids = array_map( 'absint', $post_ids );
- $and = 'AND ID IN ( ' . implode( ', ', $post_ids ) . ')';
- } else {
- $and = '';
- }
- $authors = array();
- // @codingStandardsIgnoreStart
- $results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft' $and" );
- // @codingStandardsIgnoreEnd
- 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>' . intval( $author->ID ) . '</wp:author_id>';
- echo '<wp:author_login>' . wxr_cdata( $author->user_login ) . '</wp:author_login>';
- echo '<wp:author_email>' . wxr_cdata( $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->first_name ) . '</wp:author_first_name>';
- echo '<wp:author_last_name>' . wxr_cdata( $author->last_name ) . '</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>";
- echo '<wp:term_id>' . intval( $menu->term_id ) . '</wp:term_id>';
- echo '<wp:term_taxonomy>nav_menu</wp:term_taxonomy>';
- echo '<wp:term_slug>' . wxr_cdata( $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";
- }
- }
- /**
- *
- * @param bool $return_me
- * @param string $meta_key
- * @return bool
- */
- 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( $post_ids ); ?>
- <?php
- /** This action is documented in wp-includes/feed-rss2.php */
- do_action( 'rss2_head' );
- ?>
- <?php if ( $post_ids ) {
- /**
- * @global WP_Query $wp_query
- */
- global $wp_query;
- // Fake being in the loop.
- $wp_query->in_the_loop = true;
- // 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 ) . ')';
- // @codingStandardsIgnoreStart
- $posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" );
- // @codingStandardsIgnoreEnd
- // Begin Loop.
- foreach ( $posts as $post ) {
- setup_postdata( $post );
- $is_sticky = is_sticky( $post->ID ) ? 1 : 0;
- ?>
- <item>
- <title><?php
- /** This filter is documented in wp-includes/feed.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
- /**
- * Filter the post content used for WXR exports.
- *
- * @since 2.5.0
- *
- * @param string $post_content Content of the current post.
- */
- echo wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) );
- ?></content:encoded>
- <excerpt:encoded><?php
- /**
- * Filter the post excerpt used for WXR exports.
- *
- * @since 2.6.0
- *
- * @param string $post_excerpt Excerpt for the current post.
- */
- echo wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) );
- ?></excerpt:encoded>
- <wp:post_id><?php echo intval( $post->ID ); ?></wp:post_id>
- <wp:post_date><?php echo wxr_cdata( $post->post_date ); ?></wp:post_date>
- <wp:post_date_gmt><?php echo wxr_cdata( $post->post_date_gmt ); ?></wp:post_date_gmt>
- <wp:comment_status><?php echo wxr_cdata( $post->comment_status ); ?></wp:comment_status>
- <wp:ping_status><?php echo wxr_cdata( $post->ping_status ); ?></wp:ping_status>
- <wp:post_name><?php echo wxr_cdata( $post->post_name ); ?></wp:post_name>
- <wp:status><?php echo wxr_cdata( $post->post_status ); ?></wp:status>
- <wp:post_parent><?php echo intval( $post->post_parent ); ?></wp:post_parent>
- <wp:menu_order><?php echo intval( $post->menu_order ); ?></wp:menu_order>
- <wp:post_type><?php echo wxr_cdata( $post->post_type ); ?></wp:post_type>
- <wp:post_password><?php echo wxr_cdata( $post->post_password ); ?></wp:post_password>
- <wp:is_sticky><?php echo intval( $is_sticky ); ?></wp:is_sticky>
- <?php if ( 'attachment' == $post->post_type ) : ?>
- <wp:attachment_url><?php echo wxr_cdata( 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 ) :
- /**
- * Filter whether to selectively skip post meta used for WXR exports.
- *
- * Returning a truthy value to the filter will skip the current meta
- * object from being exported.
- *
- * @since 3.3.0
- *
- * @param bool $skip Whether to skip the current post meta. Default false.
- * @param string $meta_key Current meta key.
- * @param object $meta Current meta object.
- */
- if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) ) {
- continue;
- }
- ?>
- <wp:postmeta>
- <wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key>
- <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
- </wp:postmeta>
- <?php endforeach;
- $_comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) );
- $comments = array_map( 'get_comment', $_comments );
- foreach ( $comments as $c ) : ?>
- <wp:comment>
- <wp:comment_id><?php echo intval( $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 wxr_cdata( $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 wxr_cdata( $c->comment_author_IP ); ?></wp:comment_author_IP>
- <wp:comment_date><?php echo wxr_cdata( $c->comment_date ); ?></wp:comment_date>
- <wp:comment_date_gmt><?php echo wxr_cdata( $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 wxr_cdata( $c->comment_approved ); ?></wp:comment_approved>
- <wp:comment_type><?php echo wxr_cdata( $c->comment_type ); ?></wp:comment_type>
- <wp:comment_parent><?php echo intval( $c->comment_parent ); ?></wp:comment_parent>
- <wp:comment_user_id><?php echo intval( $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 ) :
- /**
- * Filter whether to selectively skip comment meta used for WXR exports.
- *
- * Returning a truthy value to the filter will skip the current meta
- * object from being exported.
- *
- * @since 4.0.0
- *
- * @param bool $skip Whether to skip the current comment meta. Default false.
- * @param string $meta_key Current meta key.
- * @param object $meta Current meta object.
- */
- if ( apply_filters( 'wxr_export_skip_commentmeta', false, $meta->meta_key, $meta ) ) {
- continue;
- }
- ?>
- <wp:commentmeta>
- <wp:meta_key><?php echo wxr_cdata( $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
- }
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