ajax.php

<?php

$start_search_time = microtime( true );

$noredirect = true;
require_once( 'init.php' );

if ( module_security::is_logged_in() ) {


	if ( ! empty( $_POST['autocomplete'] ) ) {

		header( 'Content-type: text/json' );
		$result = array();
		if ( module_form::check_secure_key() ) {

			$plugin = ! empty( $_POST['plugin'] ) && ! empty( $plugins[ $_POST['plugin'] ] ) ? $_POST['plugin'] : false;
			if ( $plugin ) {

				$result = $plugins[ $plugin ]->autocomplete( ! empty( $_POST['search'] ) ? $_POST['search'] : '', $_POST );

			}
		}

		echo json_encode( $result );

	} else {


		header( 'Content-Type: text/html; charset=UTF-8' );
		if ( ! isset( $_SESSION['previous_search'] ) ) {
			$_SESSION['previous_search'] = array();
		}
		$search_text = isset( $_REQUEST['ajax_search_text'] ) ? trim( urldecode( $_REQUEST['ajax_search_text'] ) ) : false;
		if ( $search_text ) {
			$search_results = array();
			foreach ( $plugins as $plugin_name => &$plugin ) {
				// we work out if we bother searching this plugin for results or not.
				if ( strlen( $search_text ) > module_config::c( 'search_ajax_min_length', 2 ) ) {
					if (
						// skip searching this plugin if the last search "foo" didn't return anything and the new search is "foob"
						isset( $_SESSION['previous_search'][ $plugin_name ] ) &&
						$_SESSION['previous_search'][ $plugin_name ]['c'] == 0 &&
						strlen( $search_text ) >= strlen( $_SESSION['previous_search'][ $plugin_name ]['l'] ) &&
						strpos( $search_text, $_SESSION['previous_search'][ $plugin_name ]['l'] ) === 0
					) {
						$_SESSION['previous_search'][ $plugin_name ]['l'] = $search_text; // not really needed. but when you backspace a failed search it will force refresh all which might be good.
						//$this_plugin_results=array('skipping ' . $search_text.' in '.$plugin_name.' last search was '.$_SESSION['previous_search'][$plugin_name]['l'],);
						continue;
					} else {
						$this_plugin_results                         = $plugin->ajax_search( $search_text );
						$_SESSION['previous_search'][ $plugin_name ] = array(
							'l' => $search_text,
							'c' => count( $this_plugin_results ),
						);
					}

					$search_results = array_merge( $search_results, $this_plugin_results );
				}
			}
			if ( count( $search_results ) ) {
				echo '<ul>';
				foreach ( $search_results as $r ) {
					echo '<li>' . $r . '</li>';
				}
				echo '</ul>';
			} else {
				//_e('No results');
			}
		} else {
			echo '';
		}
		if ( module_config::c( 'search_ajax_show_time', 0 ) ) {
			echo '<br>';
			echo 'Search took: ' . round( microtime( true ) - $start_search_time, 5 );
		}
	}
	exit;
}