WordPress/wp-admin/import/rss.php

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<?php
// Example:
// define('RSSFILE', '/home/example/public_html/rss.xml');
define('RSSFILE', 'rss.xml');
class RSS_Import {
var $posts = array ();
function header() {
echo '<div class="wrap">';
echo '<h2>'.__('Import RSS').'</h2>';
}
function footer() {
echo '</div>';
}
function unhtmlentities($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() {
_e("<p>Howdy! This importer allows you to extract posts from any 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. To get started you must edit the following line in this file (<code>import/rss.php</code>) </p>
<p><code>define('RSSFILE', '');</code></p>
<p>You want to define where the RSS file we'll be working with is, for example: </p>
<p><code>define('RSSFILE', 'rss.xml');</code></p>
<p>You have to do this manually for security reasons. When you're done reload this page and we'll take you to the next step.</p>");
if ('' != RSSFILE)
echo '<a href="admin.php?import=rss&amp;step=1">' . __('Begin RSS Import &raquo;') . '</a>';
}
function get_posts() {
global $wpdb;
set_magic_quotes_runtime(0);
$datalines = file(RSSFILE); // 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 = $wpdb->escape(trim($post_title[1]));
preg_match('|<pubdate>(.*?)</pubdate>|is', $post, $post_date);
if ($post_date) {
$post_date = strtotime($post_date[1]);
} else {
// if we don't already have something from pubDate
preg_match('|<dc:date>(.*?)</dc:date>|is', $post, $post_date);
$post_date = preg_replace('|([-+])([0-9]+):([0-9]+)$|', '\1\2\3', $post_date[1]);
$post_date = str_replace('T', ' ', $post_date);
$post_date = strtotime($post_date);
}
$post_date = gmdate('Y-m-d H:i:s', $post_date);
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_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)) {
echo __('Post already imported');
} else {
$post_id = wp_insert_post($post);
if (!$post_id)
die(__("Couldn't get post ID"));
if (0 != count($categories))
wp_create_categories($categories, $post_id);
echo __('Done !');
}
echo '</li>';
}
echo '</ol>';
}
function import() {
// FIXME: Don't die
if ('' == RSSFILE)
die("You must edit the RSSFILE line as described on the <a href='import-mt.php'>previous page</a> to continue.");
if (!file_exists(RSSFILE))
die("The file you specified does not seem to exist. Please check the path you've given.");
$this->get_posts();
$this->import_posts();
echo '<h3>All done. <a href="' . get_option('home') . '">Have fun!</a></h3>';
}
function dispatch() {
if (empty ($_GET['step']))
$step = 0;
else
$step = (int) $_GET['step'];
$this->header();
switch ($step) {
case 0 :
$this->greet();
break;
case 1 :
$this->import();
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'));
?>