233 lines
6.3 KiB
PHP
233 lines
6.3 KiB
PHP
<?php
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/*
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Plugin Name: RSS Importer
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Plugin URI: https://wordpress.org/extend/plugins/rss-importer/
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Description: Import posts from an RSS feed.
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Author: wordpressdotorg
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Author URI: https://wordpress.org/
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Version: 0.3.2
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Stable tag: 0.3.2
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License: GPL version 2 or later - https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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Text Domain: rss-importer
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*/
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if ( !defined('WP_LOAD_IMPORTERS') ) {
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return;
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}
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// Load Importer API
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require_once ABSPATH . 'wp-admin/includes/import.php';
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if ( !class_exists( 'WP_Importer' ) ) {
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$class_wp_importer = ABSPATH . 'wp-admin/includes/class-wp-importer.php';
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if ( file_exists( $class_wp_importer ) )
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require_once $class_wp_importer;
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}
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/**
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* RSS Importer
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*
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* @package WordPress
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* @subpackage Importer
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*/
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/**
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* RSS Importer
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*
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* Will process a RSS feed for importing posts into WordPress. This is a very
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* limited importer and should only be used as the last resort, when no other
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* importer is available.
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*
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* @since unknown
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*/
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if ( class_exists( 'WP_Importer' ) ) {
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class RSS_Import extends WP_Importer {
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var $posts = array ();
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var $file;
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function header() {
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echo '<div class="wrap">';
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if ( version_compare( get_bloginfo( 'version' ), '3.8.0', '<' ) ) {
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screen_icon();
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}
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echo '<h2>'.__('Import RSS', 'rss-importer').'</h2>';
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}
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function footer() {
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echo '</div>';
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}
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function greet() {
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echo '<div class="narrow">';
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echo '<p>'.__('Howdy! This importer allows you to extract posts from an RSS 2.0 file into your WordPress site. This is useful if you want to import your posts from a system that is not handled by a custom import tool. Pick an RSS file to upload and click Import.', 'rss-importer').'</p>';
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wp_import_upload_form("admin.php?import=rss&step=1");
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echo '</div>';
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}
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function _normalize_tag( $matches ) {
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return '<' . strtolower( $matches[1] );
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}
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function get_posts() {
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global $wpdb;
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$datalines = file($this->file); // Read the file into an array
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$importdata = implode('', $datalines); // squish it
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$importdata = str_replace(array ("\r\n", "\r"), "\n", $importdata);
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preg_match_all('|<item>(.*?)</item>|is', $importdata, $this->posts);
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$this->posts = $this->posts[1];
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$index = 0;
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foreach ($this->posts as $post) {
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preg_match('|<title>(.*?)</title>|is', $post, $post_title);
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$post_title = str_replace(array('<![CDATA[', ']]>'), '', esc_sql( trim($post_title[1]) ) );
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preg_match('|<pubdate>(.*?)</pubdate>|is', $post, $post_date_gmt);
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if ($post_date_gmt) {
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$post_date_gmt = strtotime($post_date_gmt[1]);
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} else {
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// if we don't already have something from pubDate
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preg_match('|<dc:date>(.*?)</dc:date>|is', $post, $post_date_gmt);
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$post_date_gmt = preg_replace('|([-+])([0-9]+):([0-9]+)$|', '\1\2\3', $post_date_gmt[1]);
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$post_date_gmt = str_replace('T', ' ', $post_date_gmt);
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$post_date_gmt = strtotime($post_date_gmt);
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}
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$post_date_gmt = gmdate('Y-m-d H:i:s', $post_date_gmt);
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$post_date = get_date_from_gmt( $post_date_gmt );
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preg_match_all('|<category>(.*?)</category>|is', $post, $categories);
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$categories = $categories[1];
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if (!$categories) {
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preg_match_all('|<dc:subject>(.*?)</dc:subject>|is', $post, $categories);
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$categories = $categories[1];
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}
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$cat_index = 0;
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foreach ($categories as $category) {
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$categories[$cat_index] = esc_sql( html_entity_decode( $category ) );
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$cat_index++;
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}
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preg_match('|<guid.*?>(.*?)</guid>|is', $post, $guid);
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if ( $guid ) {
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$guid = esc_sql( trim( $guid[1] ) );
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} else {
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$guid = '';
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}
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preg_match('|<content:encoded>(.*?)</content:encoded>|is', $post, $post_content);
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if ( count( $post_content ) > 1 ) {
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$post_content = str_replace( array( '<![CDATA[', ']]>'), '', esc_sql( trim( $post_content[1] ) ) );
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} else {
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$post_content = null;
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}
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if (!$post_content) {
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// This is for feeds that put content in description
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preg_match('|<description>(.*?)</description>|is', $post, $post_content);
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$post_content = esc_sql( html_entity_decode( trim( $post_content[1] ) ) );
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}
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// Clean up content
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$post_content = preg_replace_callback('|<(/?[A-Z]+)|', array( &$this, '_normalize_tag' ), $post_content);
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$post_content = str_replace('<br>', '<br />', $post_content);
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$post_content = str_replace('<hr>', '<hr />', $post_content);
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$post_author = 1;
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$post_status = 'publish';
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$this->posts[$index] = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_status', 'guid', 'categories');
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$index++;
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}
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}
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function import_posts() {
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echo '<ol>';
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foreach ($this->posts as $post) {
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echo "<li>".__('Importing post...', 'rss-importer');
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extract($post);
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if ($post_id = post_exists($post_title, $post_content, $post_date)) {
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_e('Post already imported', 'rss-importer');
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} else {
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$post_id = wp_insert_post($post);
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if ( is_wp_error( $post_id ) )
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return $post_id;
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if (!$post_id) {
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_e('Couldn’t get post ID', 'rss-importer');
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return;
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}
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if (0 != count($categories))
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wp_create_categories($categories, $post_id);
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_e('Done!', 'rss-importer');
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}
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echo '</li>';
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}
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echo '</ol>';
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}
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function import() {
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$file = wp_import_handle_upload();
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if ( isset($file['error']) ) {
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echo $file['error'];
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return;
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}
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$this->file = $file['file'];
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$this->get_posts();
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$result = $this->import_posts();
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if ( is_wp_error( $result ) )
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return $result;
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wp_import_cleanup($file['id']);
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do_action('import_done', 'rss');
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echo '<h3>';
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printf(__('All done. <a href="%s">Have fun!</a>', 'rss-importer'), get_option('home'));
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echo '</h3>';
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}
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function dispatch() {
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if (empty ($_GET['step']))
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$step = 0;
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else
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$step = (int) $_GET['step'];
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$this->header();
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switch ($step) {
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case 0 :
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$this->greet();
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break;
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case 1 :
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check_admin_referer('import-upload');
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$result = $this->import();
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if ( is_wp_error( $result ) )
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echo $result->get_error_message();
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break;
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}
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$this->footer();
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}
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}
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$rss_import = new RSS_Import();
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register_importer('rss', __('RSS', 'rss-importer'), __('Import posts from an RSS feed.', 'rss-importer'), array ($rss_import, 'dispatch'));
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} // class_exists( 'WP_Importer' )
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function rss_importer_init() {
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load_plugin_textdomain( 'rss-importer', false, dirname( plugin_basename( __FILE__ ) ) . '/languages' );
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}
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add_action( 'init', 'rss_importer_init' );
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