<?php
/**
 * SuperACL Ajax Handler 
 * 
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author    Pascal Bihler <bihler@iai.uni-bonn.de>
 * */
//fix for Opera XMLHttpRequests
if(!count($_POST) && $HTTP_RAW_POST_DATA){
    parse_str($HTTP_RAW_POST_DATA, $_POST);
}
 
if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../../').'/');
require_once(DOKU_INC.'inc/init.php');
require_once(DOKU_INC.'inc/common.php');
require_once(DOKU_INC.'inc/pageutils.php');
require_once(DOKU_INC.'inc/auth.php');
require_once(DOKU_INC.'inc/JSON.php');
//close session
session_write_close();
 
// check, if user is admin (or at least manager)
if (! auth_ismanager()) {
    exit;
}
 
if ($_POST["q"] == "namespaces") {
    get_namespace_list();
} elseif ($_POST["q"] == "pages") {
    get_pages_list();
}
 
function get_namespace_list() {

    $ID = $_POST["pageid"];
    $selid = $_POST["selid"];

    $opt = array();

    // all namespace
    $namespaces = get_namespaces();

    // add namespaces of current page to the list of namespaces (even if the namespaces doesn't exist yet
    for($ns_id = getNS($ID); $ns_id !== false; $ns_id = getNS($ns_id)){
        if (!in_array($ns_id,$namespaces)) $namespaces[] = $ns_id;
    }
    sort($namespaces);

    $namespaces = array_reverse($namespaces);
    foreach ($namespaces as $ns_id) {
        $opt[] = array('value'=> $ns_id, 'text'=> $ns_id.':*');
        if ($ns_id == $selid) { // set sel on current selected namespcase 
            $opt[count($opt)-1]['sel'] = true;
        }
    }

    $opt[] = array('value'=> '*', 'text'=> '*');


    // flip options
    $opt = array_reverse($opt); 


    /* now construct a json */
    $json = new JSON();


    //header('Content-Type: application/json');
    header('Content-Type: text/javascript');
    print $json->encode($opt);
}
 
 
function get_pages_list() {

    $id = $_POST["aclid"];
    $selected_id = $_POST["selid"];

    $opt = array();

    $pages = array_reverse(get_pages($id));

    // add pages in list
    foreach ($pages as $page_id) {
        $page_id = ($id != '*' ? $id . ':' : '') . $page_id;
        $opt[] = array(
            'value'=> $page_id, 
            'text'=> $page_id.' ('.$_POST['page_text'].')'
        );
        if ($page_id ==  $selected_id) $opt[count($opt)-1]['sel'] = true;
    }      

    // additional namespaces
    for(; $id !== false && $id != '*'; $id=getNS($id)){
        $opt[] = array('value'=> $id.':*', 'text'=> $id.':* ('.$_POST['ns_text'].')');
        if ($id.':*' ==  $selected_id) $opt[count($opt)-1]['sel'] = true;
    }

    // the top namespace
    $opt[] = array('value'=> '*', 'text'=> '* ('.$_POST['ns_text'].')');

    // flip options
    $opt = array_reverse($opt);

    /* now construct a json */
    $json = new JSON();

    //header('Content-Type: application/json');
    header('Content-Type: text/javascript');
    print $json->encode($opt);
}

function get_pages($tns='') {
    return _getlist($tns,false,false,true);
}
 
 
function get_namespaces($tns='') {
    return _getlist($tns,true,true,false);
}

// inspired from addnewpageplugin: 
function _getlist ($tns='',$recursive = true, $namespaces=true,$pages=false) {
    require_once(DOKU_INC.'inc/search.php');
    global $conf;

    if ($tns == '*') $tns = '';

    if (!is_dir($tns)) $tns  = str_replace(':','/',$tns);

    $data = array();

    search($data,$conf['datadir'] ."/" . $tns,'search_index',array('ns' => ''));

    $data2 = array();
    foreach($data as $k => $v) {
        if ($v['type']=='d') { //Namespace
            if ($namespaces) array_push($data2,$v['id']);
            
            if ($recursive) {
                $r=_getlist($tns.'/'.$v['id'],$recursive,$namespaces,$pages);
                foreach ($r as $vv) {
                    array_push($data2,$v['id'].':'.$vv);
                }
            }
        } elseif ($v['type']=='f') { //Page
            if ($pages) array_push($data2,$v['id']);
        }
    }
    return $data2;
} 
?>