Pequeños ajustes en Wordpress

/* metaweblog.newMediaObject uploads a file, following your settings */
function mw_newMediaObject($args) {
	// adapted from a patch by Johann Richard
	// http://mycvs.org/archives/2004/06/30/file-upload-to-wordpress-in-ecto/

	global $wpdb;

	$blog_ID     = (int) $args[0];
	$user_login  = $wpdb->escape($args[1]);
	$user_pass   = $wpdb->escape($args[2]);
	$data        = $args[3];

	$name = sanitize_file_name( $data['name'] );
	$type = $data['type'];
	$bits = $data['bits'];

	logIO('O', '(MW) Received '.strlen($bits).' bytes');

	if ( !$this->login_pass_ok($user_login, $user_pass) )
		return $this->error;

	set_current_user(0, $user_login);
	if ( !current_user_can('upload_files') ) {
		logIO('O', '(MW) User does not have upload_files capability');
		$this->error = new IXR_Error(401, __('You are not allowed to upload files to this site.'));
		return $this->error;
	}

	if ( $upload_err = apply_filters( "pre_upload_error", false ) )
		return new IXR_Error(500, $upload_err);

	if(!empty($data["overwrite"]) && ($data["overwrite"] == true)) {
		// Get postmeta info on the object.
		$old_file = $wpdb->get_row("
			SELECT ID
			FROM {$wpdb->posts}
			WHERE post_title = '{$name}'
				AND post_type = 'attachment'
		");

		// Delete previous file.
		wp_delete_attachment($old_file->ID);

		// Make sure the new name is different by pre-pending the
		// previous post id.
		$filename = preg_replace("/^wpid\d+-/", "", $name);
		$name = "wpid{$old_file->ID}-{$filename}";
	}

	$upload = wp_upload_bits($name, $type, $bits, $overwrite);
	if ( ! empty($upload['error']) ) {
		$errorString = 'Could not write file ' . $name . ' (' . $upload['error'] . ')';
		logIO('O', '(MW) ' . $errorString);
		return new IXR_Error(500, $errorString);
	}
	// Construct the attachment array
	// attach to post_id -1
	$post_id = -1;
	$attachment = array(
		'post_title' => $name,
		'post_content' => '',
		'post_type' => 'attachment',
		'post_parent' => $post_id,
		'post_mime_type' => $type,
		'guid' => $upload[ 'url' ]
	);

	// Save the data
	$id = wp_insert_attachment( $attachment, $upload[ 'file' ], $post_id );
	wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $upload['file'] ) );

	return apply_filters( 'wp_handle_upload', array( 'file' => $name, 'url' => $upload[ 'url' ], 'type' => $type ) );
}

$wp_smiliessearch[] = '/(\s|^)'.preg_quote($smiley, '/').'(\s|$)/';

$wp_smiliessearch[] = '/(\B|^)'.preg_quote($smiley, '/').'(\B|$)/';