help.php

<?php
/**
 * HELP
 *
 * @package		main
 * @author		Stefano Penge <steve@lynxlab.com>
 * @author		Maurizio "Graffio" Mazzoneschi <graffio@lynxlab.com>
 * @author		Vito Modena <vito@lynxlab.com>
 * @copyright	Copyright (c) 2009, Lynx s.r.l.
 * @license		http://www.gnu.org/licenses/gpl-2.0.html GNU Public License v.2
 * @link				help
 * @version		0.1
 */
/*
 *
 * Comportamento:
 * in base alla lingua passata (default. en) carica un file dal modello help_RUOLO_(ARG_)LINGUA.ESTENSIONE
 * se non viene passata l'estensione o se è pdf restituisce un PDF, altrimenti
 * se viene passata l'estensione e se è html produce una pagina normale con template index
 */

/**
 * Base config file
 */
require_once realpath(dirname(__FILE__)).'/config_path.inc.php';

/**
 * Clear node and layout variable in $_SESSION
 */
$variableToClearAR = array('node', 'layout', 'course');
/**
 * Users (types) allowed to access this module.
 */
$allowedUsersAr = array(AMA_TYPE_VISITOR, AMA_TYPE_STUDENT,AMA_TYPE_TUTOR, AMA_TYPE_SWITCHER, AMA_TYPE_AUTHOR, AMA_TYPE_ADMIN);

/**
 * Get needed objects
 */
$neededObjAr = array(
  AMA_TYPE_VISITOR      => array('layout'),
  AMA_TYPE_STUDENT         => array('layout'),
  AMA_TYPE_TUTOR => array('layout'),
  AMA_TYPE_SWITCHER     => array('layout'),
  AMA_TYPE_AUTHOR       => array('layout'),
  AMA_TYPE_ADMIN        => array('layout')
);

require_once ROOT_DIR.'/include/module_init.inc.php';
include_once ROOT_DIR.'/include/index_functions.inc.php';
include_once ROOT_DIR.'/browsing/include/browsing_functions.inc.php';
BrowsingHelper::init($neededObjAr);

$self =  'index';
$docDir = '/docs/';
$helpPath = '';

if (isset($_GET['type'])){
  $fileext = $_GET['type'];
} else {
  $fileext = 'html';
}
if (isset($_GET['lan'])){
  $language = $_GET['lan'];
} else {
  $language = $_SESSION['sess_user_language'];
}
switch ($id_profile){
  case AMA_TYPE_SWITCHER:
    $usertype = 'switcher';
    break;
  case AMA_TYPE_STUDENT:
    $usertype = 'user';
    break;
  case AMA_TYPE_TUTOR:
    $usertype = 'practitioner';
    break;
  case AMA_TYPE_AUTHOR:
    $usertype = 'author';
    break;
  case AMA_TYPE_ADMIN:
    $usertype = 'admin';
    break;
  case AMA_TYPE_VISITOR:
  default:
    $usertype = 'guest';
    break;
}

if (isset($_GET['arg'])){
  $arg = $_GET['arg'];
  $short_help_file_name = $usertype.'_'.$arg.'_'.$language.'.'.$fileext;
  $title=translateFN("Help for")." $usertype ".translateFN("on")." $arg";
} else {
  $title=translateFN("Help for")." $usertype ";
  $short_help_file_name = $usertype.'_'.$language.'.'.$fileext;
}
$help_file = ROOT_DIR.$docDir.$short_help_file_name;

if ($fileext == 'html'){
  header('Location: '. HTTP_ROOT_DIR . $helpPath ."/browsing/external_link.php?file=$short_help_file_name");
  exit();

} elseif ($fileext == 'pdf'){
  $PDF_text =  @file_get_contents($help_file, 'r');
  if ($PDF_text != NULL){
    header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");    // Date in the past
    header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");          // always modified
    header("Cache-Control: no-store, no-cache, must-revalidate");  // HTTP/1.1
    header("Cache-Control: post-check=0, pre-check=0", false);
    header("Pragma: no-cache");                          // HTTP/1.0
    header("Content-Type: application/pdf");
    // header("Content-Length: ".filesize($name));
    header("Content-Disposition: attachment; filename=$short_help_file_name");
    echo $PDF_text;
    // header ("Connection: close");
    exit();
  } else {
    $message = translateFN("File not found: ").$short_help_file_name;
    $status = translateFN("Error");
  }
}

$content_dataAr = array(
'user_name' => $user_name,
'title'     => $title,
'text'      => $html_text,
'menu'      => $menu,
'message'   => $message,
'status'    => $status
);

/**
 * Sends data to the rendering engine
 */
ARE::render($layout_dataAr,$content_dataAr);
?>