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<?php
/**
* WordPress Administration Importer API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* Retrieve list of importers.
*
* @since 2.0.0
*
* @return array
*/
function get_importers() {
global $wp_importers;
if ( is_array( $wp_importers ) ) {
uasort( $wp_importers, '_usort_by_first_member' );
}
return $wp_importers;
}
/**
* Sorts a multidimensional array by first member of each top level member
*
* Used by uasort() as a callback, should not be used directly.
*
* @since 2.9.0
* @access private
*
* @param array $a
* @param array $b
* @return int
*/
function _usort_by_first_member( $a, $b ) {
return strnatcasecmp( $a[0], $b[0] );
}
/**
* Register importer for WordPress.
*
* @since 2.0.0
*
* @param string $id Importer tag. Used to uniquely identify importer.
* @param string $name Importer name and title.
* @param string $description Importer description.
* @param callback $callback Callback to run.
* @return WP_Error Returns WP_Error when $callback is WP_Error.
*/
function register_importer( $id, $name, $description, $callback ) {
global $wp_importers;
if ( is_wp_error( $callback ) )
return $callback;
$wp_importers[$id] = array ( $name, $description, $callback );
}
/**
* Cleanup importer.
*
* Removes attachment based on ID.
*
* @since 2.0.0
*
* @param string $id Importer ID.
*/
function wp_import_cleanup( $id ) {
wp_delete_attachment( $id );
}
/**
* Handle importer uploading and add attachment.
*
* @since 2.0.0
*
* @return array Uploaded file's details on success, error message on failure
*/
function wp_import_handle_upload() {
if ( ! isset( $_FILES['import'] ) ) {
return array(
'error' => __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.' )
);
}
$overrides = array( 'test_form' => false, 'test_type' => false );
$_FILES['import']['name'] .= '.txt';
$upload = wp_handle_upload( $_FILES['import'], $overrides );
if ( isset( $upload['error'] ) ) {
return $upload;
}
// Construct the object array
$object = array(
'post_title' => basename( $upload['file'] ),
'post_content' => $upload['url'],
'post_mime_type' => $upload['type'],
'guid' => $upload['url'],
'context' => 'import',
'post_status' => 'private'
);
// Save the data
$id = wp_insert_attachment( $object, $upload['file'] );
/*
* Schedule a cleanup for one day from now in case of failed
* import or missing wp_import_cleanup() call.
*/
wp_schedule_single_event( time() + DAY_IN_SECONDS, 'importer_scheduled_cleanup', array( $id ) );
return array( 'file' => $upload['file'], 'id' => $id );
}
/**
* Returns a list from WordPress.org of popular importer plugins.
*
* @since 3.5.0
*
* @return array Importers with metadata for each.
*/
function wp_get_popular_importers() {
include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
$locale = get_locale();
$popular_importers = get_site_transient( 'popular_importers_' . $locale );
if ( ! $popular_importers ) {
$url = add_query_arg( 'locale', get_locale(), 'http://api.wordpress.org/core/importers/1.1/' );
$options = array( 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url() );
$response = wp_remote_get( $url, $options );
$popular_importers = json_decode( wp_remote_retrieve_body( $response ), true );
if ( is_array( $popular_importers ) )
set_site_transient( 'popular_importers_' . $locale, $popular_importers, 2 * DAY_IN_SECONDS );
else
$popular_importers = false;
}
if ( is_array( $popular_importers ) ) {
// If the data was received as translated, return it as-is.
if ( $popular_importers['translated'] )
return $popular_importers['importers'];
foreach ( $popular_importers['importers'] as &$importer ) {
$importer['description'] = translate( $importer['description'] );
if ( $importer['name'] != 'WordPress' )
$importer['name'] = translate( $importer['name'] );
}
return $popular_importers['importers'];
}
return array(
// slug => name, description, plugin slug, and register_importer() slug
'blogger' => array(
'name' => __( 'Blogger' ),
'description' => __( 'Install the Blogger importer to import posts, comments, and users from a Blogger blog.' ),
'plugin-slug' => 'blogger-importer',
'importer-id' => 'blogger',
),
'wpcat2tag' => array(
'name' => __( 'Categories and Tags Converter' ),
'description' => __( 'Install the category/tag converter to convert existing categories to tags or tags to categories, selectively.' ),
'plugin-slug' => 'wpcat2tag-importer',
'importer-id' => 'wp-cat2tag',
),
'livejournal' => array(
'name' => __( 'LiveJournal' ),
'description' => __( 'Install the LiveJournal importer to import posts from LiveJournal using their API.' ),
'plugin-slug' => 'livejournal-importer',
'importer-id' => 'livejournal',
),
'movabletype' => array(
'name' => __( 'Movable Type and TypePad' ),
'description' => __( 'Install the Movable Type importer to import posts and comments from a Movable Type or TypePad blog.' ),
'plugin-slug' => 'movabletype-importer',
'importer-id' => 'mt',
),
'opml' => array(
'name' => __( 'Blogroll' ),
'description' => __( 'Install the blogroll importer to import links in OPML format.' ),
'plugin-slug' => 'opml-importer',
'importer-id' => 'opml',
),
'rss' => array(
'name' => __( 'RSS' ),
'description' => __( 'Install the RSS importer to import posts from an RSS feed.' ),
'plugin-slug' => 'rss-importer',
'importer-id' => 'rss',
),
'tumblr' => array(
'name' => __( 'Tumblr' ),
'description' => __( 'Install the Tumblr importer to import posts & media from Tumblr using their API.' ),
'plugin-slug' => 'tumblr-importer',
'importer-id' => 'tumblr',
),
'wordpress' => array(
'name' => 'WordPress',
'description' => __( 'Install the WordPress importer to import posts, pages, comments, custom fields, categories, and tags from a WordPress export file.' ),
'plugin-slug' => 'wordpress-importer',
'importer-id' => 'wordpress',
),
);
}
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