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<?php
class RSS_Import {
var $posts = array ();
var $file;
function header() {
echo '<div class="wrap">';
echo '<h2>'.__('Import RSS').'</h2>';
}
function footer() {
echo '</div>';
}
function unhtmlentities($string) { // From php.net for < 4.3 compat
$trans_tbl = get_html_translation_table(HTML_ENTITIES);
$trans_tbl = array_flip($trans_tbl);
return strtr($string, $trans_tbl);
}
function greet() {
echo '<div class="narrow">';
echo '<p>'.__('Howdy! This importer allows you to extract posts from an RSS 2.0 file into your blog. 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.').'</p>';
wp_import_upload_form("admin.php?import=rss&step=1");
echo '</div>';
}
function get_posts() {
global $wpdb;
set_magic_quotes_runtime(0);
$datalines = file($this->file); // Read the file into an array
$importdata = implode('', $datalines); // squish it
$importdata = str_replace(array ("\r\n", "\r"), "\n", $importdata);
preg_match_all('|<item>(.*?)</item>|is', $importdata, $this->posts);
$this->posts = $this->posts[1];
$index = 0;
foreach ($this->posts as $post) {
preg_match('|<title>(.*?)</title>|is', $post, $post_title);
$post_title = str_replace(array('<![CDATA[', ']]>'), '', $wpdb->escape( trim($post_title[1]) ));
preg_match('|<pubdate>(.*?)</pubdate>|is', $post, $post_date_gmt);
if ($post_date_gmt) {
$post_date_gmt = strtotime($post_date_gmt[1]);
} else {
// if we don't already have something from pubDate
preg_match('|<dc:date>(.*?)</dc:date>|is', $post, $post_date_gmt);
$post_date_gmt = preg_replace('|([-+])([0-9]+):([0-9]+)$|', '\1\2\3', $post_date_gmt[1]);
$post_date_gmt = str_replace('T', ' ', $post_date_gmt);
$post_date_gmt = strtotime($post_date_gmt);
}
$post_date_gmt = gmdate('Y-m-d H:i:s', $post_date_gmt);
$post_date = get_date_from_gmt( $post_date_gmt );
preg_match_all('|<category>(.*?)</category>|is', $post, $categories);
$categories = $categories[1];
if (!$categories) {
preg_match_all('|<dc:subject>(.*?)</dc:subject>|is', $post, $categories);
$categories = $categories[1];
}
$cat_index = 0;
foreach ($categories as $category) {
$categories[$cat_index] = $wpdb->escape($this->unhtmlentities($category));
$cat_index++;
}
preg_match('|<guid.*?>(.*?)</guid>|is', $post, $guid);
if ($guid)
$guid = $wpdb->escape(trim($guid[1]));
else
$guid = '';
preg_match('|<content:encoded>(.*?)</content:encoded>|is', $post, $post_content);
$post_content = str_replace(array ('<![CDATA[', ']]>'), '', $wpdb->escape(trim($post_content[1])));
if (!$post_content) {
// This is for feeds that put content in description
preg_match('|<description>(.*?)</description>|is', $post, $post_content);
$post_content = $wpdb->escape($this->unhtmlentities(trim($post_content[1])));
}
// Clean up content
$post_content = preg_replace('|<(/?[A-Z]+)|e', "'<' . strtolower('$1')", $post_content);
$post_content = str_replace('<br>', '<br />', $post_content);
$post_content = str_replace('<hr>', '<hr />', $post_content);
$post_author = 1;
$post_status = 'publish';
$this->posts[$index] = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_status', 'guid', 'categories');
$index++;
}
}
function import_posts() {
echo '<ol>';
foreach ($this->posts as $post) {
echo "<li>".__('Importing post...');
extract($post);
if ($post_id = post_exists($post_title, $post_content, $post_date)) {
_e('Post already imported');
} else {
$post_id = wp_insert_post($post);
if ( is_wp_error( $post_id ) )
return $post_id;
if (!$post_id) {
_e("Couldn't get post ID");
return;
}
if (0 != count($categories))
wp_create_categories($categories, $post_id);
_e('Done !');
}
echo '</li>';
}
echo '</ol>';
}
function import() {
$file = wp_import_handle_upload();
if ( isset($file['error']) ) {
echo $file['error'];
return;
}
$this->file = $file['file'];
$this->get_posts();
$result = $this->import_posts();
if ( is_wp_error( $result ) )
return $result;
wp_import_cleanup($file['id']);
do_action('import_done', 'rss');
echo '<h3>';
printf(__('All done. <a href="%s">Have fun!</a>'), get_option('home'));
echo '</h3>';
}
function dispatch() {
if (empty ($_GET['step']))
$step = 0;
else
$step = (int) $_GET['step'];
$this->header();
switch ($step) {
case 0 :
$this->greet();
break;
case 1 :
check_admin_referer('import-upload');
$result = $this->import();
if ( is_wp_error( $result ) )
echo $result->get_error_message();
break;
}
$this->footer();
}
function RSS_Import() {
// Nothing.
}
}
$rss_import = new RSS_Import();
register_importer('rss', __('RSS'), __('Import posts from an RSS feed.'), array ($rss_import, 'dispatch'));
?>
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