file node_classes.inc.php******************
<?php
//
// +----------------------------------------------------------------------+
// | ADA version 1.7 |
// +----------------------------------------------------------------------+
// | Copyright (c) 2001-2004 Lynx |
// +----------------------------------------------------------------------+
// | |
// | NODE, EXERCISE, MEDIA, LINK CLASSES |
// | |
// | |
// | |
// | |
// | |
// +----------------------------------------------------------------------+
// | Authors: Stefano Penge <steve@lynxlab.com> |
// | Graffio<graffio@lynxlab.com> |
// +----------------------------------------------------------------------+
//
// $Id: NODE_classes.inc.php,v 1.0 2003/06/06
//
//
// Classes Structure:
// Node
// Exercise
// Resource
// Media
// Link
class Node
{
//media
var $text;
var $audio;
var $image = '';
var $video;
var $notes;
var $links;
var $media;
//user vars
var $author;
var $creation_date;
var $visited;
var $order;
var $level=1; // manca nelle tabelle ???!!!!
var $position;
var $icon;
var $copyright;
var $template_family;
//system vars
var $name;
var $type;
var $id;
var $parent_id;
var $order;
var $version;
var $bgcolor;
var $color;
var $correctness;
var $instance;
var $children;
var $full= 0; // the node exists?
var $error_msg;
var $open_vars = array('title','position','icon','text','audio','video','links');
var $logical_path = array();
function node($id_node){
//global $dh,$error,$debug;
//
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
static $volte;
// constructor
$dataHa = $dh->get_node_info($id_node);
//mydebug(__LINE__,__FILE__,$dataHa);
if (AMA_DataHandler::isError($dataHa) || (!is_array($dataHa))){
$msg = $dataHa->getMessage();
if (!strstr ($msg, 'record was not found')) {
// header("Location: $error?err_msg=$msg");
// exit;
return $msg;
} else {
return $msg;
}
}
/* Se i nomi non sono gli stessi:
$this->author = $dataHa['author]'];
$this->position= $dataHa['position']; // the position (array: (x0, y0, x1, y1))
$this->name = $dataHa['nome'];
$this->title = $dataHa['title'];
$this->text = $dataHa['text'];
$this->type = $dataHa['type']; //the type of node
// (0 - Page, 1 - Group, 2 - Note, 3 - Multiple Answer, 4 - Free Answer, 5 - History separators (?))
$this->creation_date = $dataHa['creation_date']; // the date of creation of the node (the format is specified in ADA_DATE_FORMAT)
$this->parent_id = $dataHa['parent_id'];
$this->next_id = $dataHa['next_id'];
$this->previous_id = $dataHa['previous_id'];
$this->level = $dataHa['livello']; // the level at which the node is visible in the course (0 - 3)
$this->version = $dataHa['version']; //- version of the node (not used yet)
$this->contacts = $dataHa['contacts']; //- number of contacts that the node has received
$this->icon = $dataHa['icon'];
$this->color = $dataHa['color'];
$this->correctness = $dataHa['correctness']; // if the node is of type 3 or 4 (answers), give the correctness
// (0-10 or 0-100 or 0-whateverYouLike) of the answer, else it must be NULL
$this->copyright = $dataHa['copyright']; // - boolean (0, 1) if a copyright is held by the author on this node
*/
// mydebug(__LINE__,__FILE__,$dataHa);
if (!empty($dataHa['name'])){
foreach ($dataHa as $key=>$value){
$this->$key = $value;
}
$this->full = 1;
// Children
// mydebug(__LINE__,__FILE__,$this);
$childrenAr = $dh->get_node_children($id_node); // Array
// mydebug(__LINE__,__FILE__,$childrenAr);
if (AMA_DataHandler::isError($childrenAr) || (!is_array($childrenAr))){
$this->children = '';
} elseif (count($childrenAr)>0)
$this->children = $childrenAr;
// Links
$linksAr = $dh->get_node_links($id_node); // Array
if (AMA_DataHandler::isError($linksAr) || (!is_array($linksAr))){
$this->links = '';
} elseif (count($linksAr)>0)
$this->links = $linksAr;
// Media
$mediaAr = $dh->get_node_resources($id_node); // Array
if (AMA_DataHandler::isError($mediaAr) || (!is_array($mediaAr))){
$this->media = new AMA_Error(translateFN('Errore nei media'),translateFN('Errore nei media'));
} elseif (is_array($mediaAr))
$this->media = $mediaAr;
$this->id = $id_node;
// mydebug(__LINE__,__FILE__,$this);
}
}
function copy($new_id_node){
//global $dh,$error,$debug;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
// duplicates a node
if ($new_id_node!=$this->id){
$dataHa = $dh->get_node_info($this->id);
//mydebug(__LINE__,__FILE__,$dataHa);
if (AMA_DataHandler::isError($dataHa) || (!is_array($dataHa))){
$msg = $dataHa->getMessage();
if (!strstr ($msg, 'record was not found')) {
header("Location: $error?err_msg=$msg");
exit;
} else {
return $msg;
}
}
$dataHa->node_id = $new_id_node;
$dh->add_node($dataHa); // Array
} else {
return translateFN("Un nodo con questo id è già presente");
}
}
function graph_indexFN($id_toc='',$depth=1,$user_level=1,$user_history=''){
// usata per la mappa grafica
//global $dh,$error;
//global $root_dir,$http_root_dir,$media_path;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$media_path = $GLOBALS['media_path'];
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
if (empty($id_toc))
$id_toc = $this->id;
$course_icons_media_path = $root_dir.$media_path;
$base = new Node($id_toc); // da dove parte
$children = $base->children;
$type = $base->type;
// mydebug(__LINE__,__FILE__,$children);
$children_ha = array();
if (!empty($children) and ($type == 1)){
foreach ($children as $id_child) {
$linked_ha = array();
if (!empty($id_child)){
$child_dataHa = $dh->get_node_info($id_child);
// Vengono mostrati nella mappa solo i nodi di tipo pagina (0) e gruppo (1)
if (($child_dataHa['type'] == 0) or ($child_dataHa['type'] == 1)) {
//mydebug(__LINE__,__FILE__,$child_dataHa);
$linksAr = array();
$links_result = $dh->get_node_links($id_child); // Array
if (!is_object($links_result)) {
$linksAr = $links_result;
// filtro link
$ok_link = $this->get_filter_links_FN($linksAr,$user_level);
// fine filtro link
if (!empty($ok_link)) {
foreach ($ok_link as $link) {
$id_node_to = $link['id_node_to'];
$meaning_link = $link['meaning_link'];
$action_link = $link['action_link'];
array_push ($linked_ha, array ('id_node_to'=>$id_node_to,'meaning_link'=>$meaning_link,'action_link'=>$action_link));
}
}
}
if (file_exists($course_icons_media_path.$child_dataHa['icon'])) {
$icon_child = $course_icons_media_path.$child_dataHa['icon'];
} else {
$icon_child = $child_dataHa['icon'];
}
//mydebug(__LINE__,__FILE__,$course_icons_media_path.$child_dataHa['icon']);
$array_child = array('id_child'=>$id_child,
'name_child'=>$child_dataHa['name'],
'position_child'=>$child_dataHa['position'],
'type_child'=>$child_dataHa['type'],
'icon_child'=> $icon_child,
'level_child'=> $child_dataHa['level'],
'bgcolor_child'=>$child_dataHa['bgcolor'],
'color_child'=>$child_dataHa['color'],
'linked'=>$linked_ha);
array_push($children_ha, $array_child);
//mydebug(__LINE__,__FILE__,$array_child);
}
}
}
return $children_ha;
} else {
return translateFN("Nessuno");
}
}
function indexFN($id_toc='',$depth=1,$user_level=1,$user_history='',$user_type='3'){
// class function
// filtering nodes by level
// notes are shown only if created by users of this course
// AND of this instance
//global $dh,$error;
//global $sess_id_course,$sess_id_course_instance,$sess_id_user;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$sess_id_course = $GLOBALS['sess_id_course'];
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_user = $GLOBALS['sess_id_user'];
$visit_count = 0;
if (empty($id_toc)) $id_toc = $this->id;
$base = new Node($id_toc); // da dove parte
$children = $base->children;
//mydebug(__LINE__,__FILE__,$children);
if (!empty($children)){
$dataAr = array();
// $parent_link = array("<img name=gruppo alt=\"Questo gruppo\" src=\"img/_gruppo.gif\"> <a href=view.php?id_node=".$base->id.">".$base->name."</a>",
// $alt = translateFN("Questo gruppo");
// $parent_link = array("<img name=gruppo alt=\"$alt\" src=\"img/_gruppo.gif\">".$base->name);
$parent_link = array();
for ($k=1; $k<=$depth; $k++){
array_push($parent_link," ");
}
array_push($dataAr,$parent_link);
foreach ($children as $id_child) {
if (!empty($id_child)){
//$node_childObj = new Node($id_child);
//$children_link = array(" ","<img name=gruppo alt=\"nodo\" src=\"img/_nodo.gif\"> <a href=view.php?id_node=".$id_child.">".$node_childObj->name."</a>");
// se è troppo lento si può usare:
$ok = false;
$child_dataHa = $dh->get_node_info($id_child);
$node_type = $child_dataHa['type'];
switch ($node_type){
case ADA_LEAF_TYPE:
if ($child_dataHa['level']<=$user_level){
$alt = translateFN("Nodo inferiore");
$icon = "_nodo.gif";
switch ($user_type){
case AMA_TYPE_STUDENT:
default:
$visit_count = User::is_visited_by_userFN($id_child,$sess_id_course_instance,$sess_id_user);
break;
case AMA_TYPE_TUTOR:
// TOO SLOW !
$visit_count = User::is_visited_by_classFN($id_child,$sess_id_course_instance,$sess_id_course);
break;
case AMA_TYPE_AUTHOR:
$visit_count = User::is_visitedFN($id_child);
}
if ($visit_count<=0){
$children_link = array("<img name=\"nodo\" alt=\"$alt\" src=\"img/$icon\"> <b><a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a></b>");
} else {
$children_link = array("<img name=\"nodo\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a> ($visit_count)");
}
} else {
$alt = translateFN("Nodo non visitabile");
$icon = "_nododis.gif"; // _nododis.gif
$children_link = array("<img name=\"nodo\" alt=\"$alt\" src=\"img/$icon\"> ".$child_dataHa['name']);
}
break;
case ADA_GROUP_TYPE:
if ($child_dataHa['level']<=$user_level){
$alt = translateFN("Approfondimenti");
$icon = "_gruppo.gif";
switch ($user_type){
case AMA_TYPE_STUDENT:
default:
$visit_count = User::is_visited_by_userFN($id_child,$sess_id_course_instance,$sess_id_user);
break;
case AMA_TYPE_TUTOR:
// TOO SLOW !
// $visit_count = User::is_visited_by_classFN($id_child,$sess_id_course_instance,$sess_id_course);
//
break;
case AMA_TYPE_AUTHOR:
$visit_count = User::is_visitedFN($id_child);
}
if ($visit_count==0){
$children_link = array("<img name=\"gruppo\" alt=\"$alt\" src=\"img/$icon\"> <b><a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a></b>");
} else {
$children_link = array("<img name=\"gruppo\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a> ($visit_count)");
}
} else {
$alt = translateFN("Approfondimenti non visitabili");
$icon = "_gruppodis.gif"; // _gruppodis.gif
$children_link = array("<img name=\"gruppo\" alt=\"$alt\" src=\"img/$icon\"> ".$child_dataHa['name']);
}
break;
case ADA_NOTE_TYPE: // node added by users
/*
$autore = $child_dataHa['author'];
switch (VIEW_PRIVATE_NOTES_ONLY){
case 0: // every node added by student of this course are visible
$author_dataHa = $dh->get_subscription($autore, $sess_id_course_instance);
if (!DB::isError($author_dataHa)){
$alt = translateFN("Nota pubblica");
$icon = "_nota.gif";
$children_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a>");
}
break;
case 1: // only nodes added by this user are visible
if ($autore==$sess_id_user){
$alt = translateFN("Nota privata");
$icon = "_nota.gif";
$children_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a>");
}
default:
$ok = false;
$alt = translateFN("Nota non visitabile");
$icon = "_unknown.gif";
$children_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> ".$child_dataHa['name']);
}
*/
unset ($children_link);
break;
case ADA_STANDARD_EXERCISE_TYPE: // exercise
case 4: // exercise...
case 5: // exercise...
case 6: // exercise...
unset ($children_link);
break;
default:
$alt = translateFN("Nodo non visitabile");
$icon = "_unknown.gif";
$children_link = array("<img name=\"sconosciuto\" alt=\"$alt\" src=\"img/$icon\"> ".$child_dataHa['name']);
}
if (isset($children_link)){
for ($k=1; $k<=$depth; $k++){
array_unshift($children_link," ");
}
array_push($dataAr,$children_link);
}
}
}
$t = new Table();
$t->initTable('0','center','0','0','100%','blue','white','blue','white','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Indice dei nodi inferiori"));
$t->getTable();
return $t->data;
} else {
return translateFN("Nessuno")."<p>";
}
}
// Inizio funzioni wrapper per Main Index
// le funzioni vere appartengono alla classe Course
/* RIASSUNTO:
main_indexFN: mostra nodi e gruppi, per studente (no autore, tutor e admin)
explode_nodesFN : ricorsiva, chiamata per default e se $order=struct
explode_nodes_iterativeFN : iterativa, chiamata se $order=alfa
se hide_visits=1 mostrano anche le visite dello studente
class_indexFN: mostra nodi e gruppi,per tutor e autore (no studente e admin)
class_explode_nodesFN : ricorsiva, chiamata per default e se $order=struct
class_explode_nodes_iterativeFN : iterativa, chiamata se $order=alfa
se hide_visits=1 mostrano anche le visite della classe (tutor) o di tutti (autore)
forum_main_indexFN: mostra solo note, per studente, tutor (no admin e autore)
forum_explode_nodesFN : ricorsiva, chiamata se $order=struct
forum_explode_nodes_iterativeFN : iterativa, chiamata per default e se $order=chrono
*se hide_visits=1 mostrano anche le visite della classe (tutor)
*/
function main_indexFN($id_toc='',$depth=1,$user_level=1,$user_history='',$user_type=AMA_TYPE_STUDENT,$order='struct',$expand=0){
// this version is intended for studentes use only
$CourseObj = new Course($sess_id_course);
$index = $CourseObj->main_indexFN($id_toc,$depth,$user_level,$user_history,$user_type,$order,$expand);
return $index;
}
function class_main_indexFN($id_toc='',$depth=1,$id_profile,$order='struct',$expand=1){
// this version is intended for tutor or author use
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$CourseInstanceObj = new Course_instance($sess_id_course_instance);
$index = $CourseInstanceObj->class_main_indexFN($id_toc,$depth,$id_profile,$order,$expand);
return $index;
}
function forum_main_indexFN($id_toc='',$depth=1,$id_profile,$order='chrono',$id_student,$mode='standard'){
// this version is intended for tutor and studente use
// only notes are showed
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$CourseInstanceObj = new Course_instance($sess_id_course_instance);
$index = $CourseInstanceObj->forum_main_indexFN($id_toc,$depth,$id_profile,$order,$id_student,$mode);
return $index;
}
// Fine funzioni per Main Index
function get_all_childrenFN($depth,$user_level,$id_parent,$dataAr,$id_profile){
// recursive
//global $dh,$id_course,$sess_id_course_instance,$sess_id_course;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$sess_id_course = $GLOBALS['sess_id_course'];
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_user = $GLOBALS['sess_id_user'];
$depth++;
$childrenAr = $dh->get_node_children($id_parent);
if (!is_object($childrenAr)){ // it is an Error
$childnumber = 0;
foreach ($childrenAr as $id_child) {
if (!empty($id_child)){
$childnumber++;
$child_dataHa = $dh->get_node_info($id_child);
$node_type = $child_dataHa['type'];
$ok=false;
switch ($node_type){
case 0:
if ($child_dataHa['level']<=$user_level){
$alt = translateFN("Nodo inferiore");
$icon = "_nodo.gif";
$ok = true;
} else {
$alt = translateFN("Nodo non visitabile");
$icon = "_nododis.gif"; // _nododis.gif
$ok = false;
}
break;
case 1:
if ($child_dataHa['level']<=$user_level){
$alt = translateFN("Gruppo inferiore");
$icon = "_gruppo.gif";
$ok = true;
} else {
$alt = translateFN("Gruppo non visitabile");
$icon = "_gruppodis.gif"; // _gruppodis.gif
$ok = false;
}
break;
case 2: // node added by users
// notes doesn't have levels !
$autore = $child_dataHa['author'];
switch (VIEW_PRIVATE_NOTES_ONLY){
case 0: // every node added by student of this course are visible
$author_dataHa = $dh->get_subscription($autore, $sess_id_course_instance);
if (!DB::isError($author_dataHa)){
$alt = translateFN("Nota pubblica");
$icon = "_nota.gif";
$ok = true;
}
break;
case 1: // only nodes added by this user are visible
if ($autore==$sess_id_user){
$alt = translateFN("Nota privata");
$icon = "_nota.gif";
$ok = true;
}
default:
$ok = false;
$alt = translateFN("Nodo non visitabile");
$icon = "_unknown.gif";
}
break;
default:
$icon = "_nodo.gif";
$ok = true;
}
if ($ok){
switch ($id_profile){
case AMA_TYPE_STUDENT:
default:
$visit_count = $userObj-> is_visited_by_userFN($id_child,$sess_id_course_instance,$sess_id_user);
break;
case AMA_TYPE_TUTOR:
$visit_count = User::is_visited_by_classFN($id_child,$sess_id_course_instance,$sess_id_course);
break;
case AMA_TYPE_AUTHOR:
$visit_count = $userObj->is_visitedFN($id_child);
}
$dataAr[$depth][$childnumber ] = "<img name=\"nodo\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a>";
} else {
$dataAr[$depth][$childnumber ] = "<img name=\"nodo\" alt=\"$alt\" src=\"img/$icon\">".$child_dataHa['name'];
}
$dataAr[$depth][$childnumber ] = "<img name=gruppo alt=\"Nodo inferiore\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_child.">".$child_dataHa['name']."</a>";
Node::get_all_childrenFN($depth,$user_level,$id_child,$dataAr,$id_profile);
}
}
} else {
return FALSE;
}
}
function findPathFN($target="") {
// NON ricorsivamente tenta di risalire al nodo id X_0
//global $dh,$error,$sess_id_course, $self;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$sess_id_course = $GLOBALS['sess_id_course'];
$self = $GLOBALS['self'];
if (empty($target)) {
$target = $self;
}
$id_toc = $sess_id_course."_0";
$id_node = $this->id;
//$path = "<a href=view.php?id_node=$id_node>$name</a>";
if ($id_node==$id_toc){ // are we at main group level?
$path = '';
} else {
$name = $this->name;
$path = $name;
$id_parent = $this->parent_id;
while ($id_node!=$id_toc && (!empty($id_node))) {
// mydebug(__LINE__,__FILE__,array('parent'=>$id_parent,'node'=>$id_node));
$dataHa = $dh->get_node_info($id_parent);
$name = $dataHa['name'];
$id_node = $dataHa['parent_id'];
if ($id_parent!=$id_toc) {
if ($target == "map") {
$node_parentObj = new Node($id_node);
$parent_type = $node_parentObj->type;
if ($parent_type ==ADA_GROUP_TYPE) {
$path = "<a href=map.php?id_node=$id_parent>$name</a> > ".$path;
} else {
$path = "<a href=view.php?id_node=$id_parent>$name</a> > ".$path;
}
} else {
$path = "<a href=view.php?id_node=$id_parent>$name</a> > ".$path;
}
$id_parent = $id_node;
}
// mydebug(__LINE__,__FILE__,$path);
}
}
// we are at the first level
$dataHa = $dh->get_node_info($id_toc);
$tocname = $dataHa['name'];
if ($target == "map") {
$path = "<a href=map.php?id_node=$id_toc>$tocname</a> > ".$path;
} else {
$path = "<a href=view.php?id_node=$id_toc>$tocname</a> > ".$path;
}
return $path;
}
function get_filter_links_FN($linksAR,$user_level=1) {
// filtro sui link:
// verifica se i nodi linkati hanno livello<= a quello dell'utente
// torna un array associativo
$ok_link = array();
$data_Ar = array();
if (!empty($linksAR)) {
$linkAr = $linksAR;
foreach ($linkAr as $id_link){
$linkObj = new Link($id_link);
$id_linked_node = $linkObj->to_node_id;
$link_meaning = $linkObj->meaning;
$link_action = $linkObj->action;
$link_style = $linkObj->style;
$link_type = $linkObj->type;
// $node = $sess_id_course."_".$id_linked_node;
$node = $id_linked_node;
$tempNodeObj = new Node($node);
$linked_node_name = $tempNodeObj->name;
$linked_node_level = $tempNodeObj->level;
if (($linked_node_level<=$user_level) and (!empty($id_linked_node))) {
$ok_link = array('id_link'=>$id_link,'id_node_to'=>$id_linked_node,'meaning_link'=>$link_meaning,'type_link'=>$link_type,'action_link'=>$link_action);
//mydebug(__LINE__,__FILE__,$ok_link);
array_push($data_Ar,$ok_link);
// mydebug(__LINE__,__FILE__,$data_Ar);
}
}
return $data_Ar;
} else {
return "";
}
}
function filter_nodeFN($user_level,$user_history,$id_profile='3',$querystring=''){
/*
restituisce i dati visibili per l'utente in un array associativo
filtri attivi:
- media (in base al browser, dovrebbe farlo in base al profilo ,$id_profile)
- links (in base allo userlevel)
-
*/
if (!isset($id_profile))
$id_profile = AMA_TYPE_STUDENT;
$htmldataHa['text'] = $this->get_textFN($user_level,$querystring);
$htmldataHa['media'] = $this->get_mediaFN($user_level);
// prova
$htmldataHa['media'].= $this->get_user_mediaFN($user_level);
$htmldataHa['link'] = $this->get_linksFN($user_level,$id_profile);
$htmldataHa['exercises'] = $this->get_exercisesFN($user_level);
$htmldataHa['notes'] = $this->get_notesFN($user_level,$id_profile);
return $htmldataHa;
}
function get_textFN($user_level,$querystring){
// filtro sul testo
// verifica se il nodo ha livello<= a quello dell'utente
// sostituisce i link e i media di tipo img se IMG_VIEWING_MODE=2
//global $dh,$media_path,$root_dir,$http_root_dir;
//global $sess_id_course;
$dh = $GLOBALS['dh'];
$media_path = $GLOBALS['media_path'];
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
$sess_id_course = $GLOBALS['sess_id_course'];
$level_filter = 1;
$link_filter = 1;
$extlink_filter = 1;
$media_filter = 1;
$query_filter = 1;
$parsing_text[] = $this->text;
if ($level_filter){
$node_level = $this->level;
if ($node_level>$user_level){
return translateFN("Il contenuto di questo nodo non è accessibile ad utenti di livello $user_level");
}
}
//media
/* type:
img= 0
audio = 1
video = 2
linkext = 3
*/
if ($media_filter){
// img
$unparsed_text = current($parsing_text);
$author = $this->author['username'];
$clause = "username = '$author'";
$field_list = array();
$res = $dh->find_authors_list($field_list,$clause);
if (AMA_DataHandler::isError($res)){
$msg = urlencode($res->getMessage());
header("Location: $error?err_msg=$msg");
}
if (sizeof($res)<1){
$author_dir = ""; //integrity error !
} else {
$author_dir = $res['0']['0'];
}
if (MEDIA_LOCAL_PATH){
$file_path = MEDIA_LOCAL_PATH . $media_path ;
$http_file_path = MEDIA_LOCAL_PATH . $media_path ;
} else {
$file_path = $root_dir . $media_path ;
$http_file_path = $http_root_dir . $media_path ;
}
/*
if (MEDIA_LOCAL_PATH){
$http_file_path = MEDIA_LOCAL_PATH . $media_path . $author_dir."/";
$file_path = MEDIA_LOCAL_PATH . $media_path . $author_dir."/";
} else {
$http_file_path = $http_root_dir . $media_path . $author_dir."/";
$file_path = $root_dir . $media_path . $author_dir."/";
}
*/
// echo "$http_root_dir $media_path $http_file_path <br>" ;
$img = "<MEDIA TYPE=\"0\" VALUE=\"([a-zA-Z0-9_ ]+).([a-zA-Z]{1,3})\">";
$is_img = eregi($img,$unparsed_text,$regs);
if ($is_img){
$img_file = $regs[1];
switch (IMG_VIEWING_MODE){
case 2:
// tag are replaced by fullsize img
$exploded_img = "<img src=\"$http_file_path\\1.\\2\" alt=\"\\1.\\2\">";
$parsing_text[] = eregi_replace($img,$exploded_img,$unparsed_text);
break;
case 1:
case 0:
default:
// tag are replaced by icons
$exploded_img = "<a href=\"$http_file_path\\1.\\2\"><img src=\"img/_img.gif\" border=\"0\" alt=\"\\1.\\2\"></a>";
$parsing_text[] = eregi_replace($img,$exploded_img,$unparsed_text);
}
}
// audio
$unparsed_text = end($parsing_text);
// $unparsed_text = current($parsing_text);
$audio= "<MEDIA TYPE=\"1\" VALUE=\"([a-zA-Z0-9_ ]+)\.([a-zA-Z0-9]{1,3})\">";
$is_audio = eregi($audio,$unparsed_text,$regs);
if ($is_audio){
$audio_file = $regs[1];
$exploded_audio = "<a href=\"$http_file_path\\1.\\2\" target=\"_blank\"><img src=\"img/_audio.gif\" border=\"0\" alt=\"\\1.\\2\"></a>";
$parsing_text[] = eregi_replace($audio,$exploded_audio,$unparsed_text);
}
// video
$unparsed_text = end($parsing_text);
$video= "<MEDIA TYPE=\"2\" VALUE=\"([a-zA-Z0-9_ ]+)\.([a-zA-Z]{1,3})\">";
$is_video = eregi($video,$unparsed_text,$regs);
if ($is_video){
$video_file = $regs[1];
$extension = $regs[2];
switch ($extension){
case "dcr": //shockwave
$exploded_video = "<object classid=\"clsid:166B1BCA-3F9C-11CF-8075-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab#version=8,0,0,0\" width=\"400\" height=\"300\">
<param name=movie value=\"$http_file_path\\1.\\2\">
<embed src=\"$http_file_path\\1.\\2\" quality=high pluginspage=\"http://www.macromedia.com/shockwave/download/\"width=\"400\" height=\"300\">
</embed>
</object>";
break;
case "swf": // flash
$exploded_video = "<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0\" width=\"400\" height=\"300\">
<param name=movie value=\"$http_file_path\\1.\\2\">
<param name=quality value=high>
<embed src=\"$http_file_path\\1.\\2\" quality=high pluginspage=\"http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash\" type=\"application/x-shockwave-flash\" width=\"400\" height=\"300\">
</embed>
</object>";
break;
case "avi":
case "mpg":
default:
$exploded_video = "<a href=\"$http_file_path\\1.\\2\" target=\"_blank\"><img src=\"img/_video.gif\" border=\"0\" alt=\"\\1.\\2\"></a>";
}
$parsing_text[] = eregi_replace($video,$exploded_video,$unparsed_text);
}
}
// ext-link
if ($extlink_filter){
$unparsed_text = end($parsing_text);
$ext_link = "<MEDIA TYPE=\"3\" VALUE=\"([a-zA-Z0-9_~ ]+)\.([a-zA-Z]{1,4})\">"; // qualsiasi cosa...
$is_ext_link = eregi($ext_link,$unparsed_text,$regs);
if ($is_ext_link){
$file_name = $regs[0]; //echo $file_name;
if (stristr($file_name,"http:")) {
$exploded_ext_link = "<a href=\"$http_file_path\\1.\\2\" target=\"_blank\"><img src=\"img/_web.gif\" border=\"0\" alt=\"\\1.\\2\"></a>";
} else {
$exploded_ext_link = "<a href=\"$http_file_path\\1.\\2\" target=\"_blank\"><img src=\"img/_linkext.gif\" border=\"0\" alt=\"\\1.\\2\"></a>";
}
$parsing_text[] = eregi_replace($ext_link,$exploded_ext_link,$unparsed_text);
}
}
if ($link_filter){
//link : we have to filter these links !!!!
$unparsed_text = end($parsing_text);
$link= "<LINK TYPE=INTERNAL VALUE=\"([0-9]{1,4})\">";
$is_linked = eregi($link,$unparsed_text,$regs);
while ($is_linked){
$id_link = $regs[1];
if (!empty($id_link)){
$linked_node_id = $sess_id_course."_".$id_link;
$nodeObj = new Node($linked_node_id);
if ($nodeObj->full==1) {
$linked_node_level = $nodeObj->level;
$name = $nodeObj->name;
$link= "<LINK TYPE=INTERNAL VALUE=\"$id_link\">";
if ($linked_node_level<=$user_level){
$exploded_link = "<a href=view.php?id_node=".$linked_node_id."><img src=\"img/_linka.gif\" border=\"0\" alt=\"$name\"></a>";
$parsing_text[] = eregi_replace($link,$exploded_link,$unparsed_text);
} else {
$exploded_link = "<img src=\"img/_linkdis.gif\" border=\"0\" alt=\"$name\">";
$parsing_text[] = eregi_replace($link,$exploded_link,$unparsed_text);
}
} else {
$link= "<LINK TYPE=INTERNAL VALUE=\"$id_link\">";
$exploded_link = "<img src=\"img/_linkdis.gif\" border=\"0\" alt=\"$id_link\">";
$parsing_text[] = eregi_replace($link,$exploded_link,$unparsed_text);
}
}
$unparsed_text = end($parsing_text);
$link= "<LINK TYPE=INTERNAL VALUE=\"([0-9]{1,4})\">";
$is_linked = eregi($link,$unparsed_text,$regs);
}
}
if ($query_filter){
// query string (from search)
if (isset($querystring) && $querystring!="") {
$dim_query = substr_count ($querystring, " ");
$is_or_query = ($dim_query >= 1);
if (!$is_or_query){
$unparsed_text = end($parsing_text);
$stringa = split(' ',$unparsed_text);
$str_new = "";
for($k=0;$k<count($stringa);$k++) {
if (strtoUpper($querystring) == strtoUpper(strip_tags($stringa[$k]))) {
$str_new .= "<span style=\"background-color: #FFFF00;\">".$stringa[$k]."</span> ";
} else {
$str_new .= $stringa[$k]." ";
}
}
$parsing_text[] = $str_new;
}
}
}
return end($parsing_text);
// fine filtro testo
}
function get_linksFN($user_level,$id_profile){
//global $dh,$error,$debug;
//global $sess_id_course,$sess_id_course_instance,$sess_id_user;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$sess_id_course = $GLOBALS['sess_id_course'];
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_user = $GLOBALS['sess_id_user'];
// filtro sui link:
// verifica se i nodi linkati hanno livello<= a quello dell'utente
if (!empty($this->links)) {
$linkAr =$this->links;
// mydebug(__LINE__,__FILE__,$linkAr);
$dataAr = array();
foreach ($linkAr as $id_link){
$linkObj = new Link($id_link);
//$debug=1; mydebug(__LINE__,__FILE__,$linkObj);$debug=0;
$id_linked_node = $linkObj->to_node_id;
$link_meaning = translatefN("Tipo:").$linkObj->meaning;
$node = $id_linked_node;
$tempNodeObj = new Node($node);
//$debug=1; mydebug(__LINE__,__FILE__,$tempNodeObj);$debug=0;
if ($tempNodeObj->full==1) {
$linked_node_name = $tempNodeObj->name;
$linked_node_level = $tempNodeObj->level;
if ($linked_node_level<=$user_level){
switch ($id_profile){
case AMA_TYPE_STUDENT:
default:
$visit_count = User::is_visited_by_userFN($node,$sess_id_course_instance,$sess_id_user);
break;
case AMA_TYPE_TUTOR:
$visit_count = User::is_visited_by_classFN($node,$sess_id_course_instance,$sess_id_user);
break;
case AMA_TYPE_AUTHOR:
$visit_count = User::is_visitedFN($node);
}
if ($visit_count<=0){
$ok_link = array("<img src=\"img/_linka.gif\">"," <b><a href=view.php?id_node=$node alt=\"$link_meaning\">$linked_node_name</a></b>");
} else {
$ok_link = array("<img src=\"img/_linka.gif\">"," <a href=view.php?id_node=$node alt=\"$link_meaning\">$linked_node_name</a> ($visit_count)");
}
} else {
$ok_link = array("<img src=\"img/_linkdis.gif\">"," ".$linked_node_name);
// $ok_link = array("<img src=\"templates/default/img/_linkdis.gif\">",$linked_node_name);
}
} else {
//$ok_link =array(" "," ");
$ok_link =array("<img src=\"img/_linkdis.gif\" alt=\"$node\">",translateFN("nodo non trovato"));
}
array_push($dataAr,$ok_link);
}
$t = new Table();
$t->initTable('0','center','0','0','100%','blue','white','blue','white','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Indice dei nodi collegati"));
return $t->getTable();
} else {
return translateFN("Nessuno");
}
}
// fine filtro links
function get_exercisesFN($user_level){
//global $dh,$error;
//global $sess_id_user, $sess_id_course_instance;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_user = $GLOBALS['sess_id_user'];
// filtering exercises:
// have the exercises been already executed?
// HTML EMBEDDED VERSION
if (!empty($this->children)) {
$exerc_Ar =$this->children;
// mydebug(__LINE__,__FILE__,$exerc_Ar);
$dataAr = array();
foreach ($exerc_Ar as $id_exerc){
$temp = $dh->get_node_info($id_exerc);
$type = $temp['type'];
if ($type >= ADA_STANDARD_EXERCISE_TYPE) {
$exercise = $dh->get_node_info($id_exerc);
// mydebug(__LINE__,__FILE__,$exercObj);
$exerc_title = $exercise['name'];
$out_fields_ar = array('data_visita','ripetibile');
$history_exerc = $dh->find_ex_history_list($out_fields_ar,$sess_id_user, $sess_id_course_instance, $id_exerc);
if (is_array($history_exerc)){
$h_exerc = array_shift($history_exerc);
// global $debug; $debug = 1; mydebug(__LINE__,__FILE__,$h_exerc); $debug=0;
if (is_array($h_exerc))
$already_executed = !$h_exerc[2];
else
$already_executed = "";
} else {
$already_executed = "";
}
if (!$already_executed) { // not yet viewed or repeatable
$alt = translateFN("Esercizio");
$icon = "_exer.gif";
$ok = true;
} else {
$alt = translateFN("Esercizio già eseguito");
$icon = "_exerdis.gif"; // _gruppodis.gif
$ok = false;
}
if ($ok){
$exerc_ok = array("<img name=gruppo alt=\"$alt\" src=\"img/$icon\"> <a href=exercise.php?id_node=$id_exerc>$exerc_title</a>");
} else {
$exerc_ok = array("<img name=gruppo alt=\"$alt\" src=\"img/$icon\">$exerc_title");
}
array_push($dataAr,$exerc_ok);
}
}
$t = new Table();
$t->initTable('0','center','0','0','100%','','','','','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Indice degli esercizi collegati"));
return $t->getTable();
} else {
return translateFN("Nessuno")."<p>";
}
}
// fine filtro esercizi
function get_notesFN($user_level,$id_profile){
//global $dh,$error,$debug;
//global $sess_id_user, $sess_id_course_instance;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_user = $GLOBALS['sess_id_user'];
if (!empty($this->children)) {
$notes_Ar =$this->children;
$dataAr = array();
foreach ($notes_Ar as $id_note){
$nodeObj = new Node($id_note);
// $debug=1; mydebug(__LINE__,__FILE__,$nodeObj); $debug=0;
$type = $nodeObj->type;
$node_instance = $nodeObj->instance;
if ($type == 2) { // notes
$name = $nodeObj->name;
$level = $nodeObj->level;
$authorHa = $nodeObj->author;
$autore = $authorHa['id'];
// $debug=1; mydebug(__LINE__,__FILE__,$authorHa); $debug=0;
// $node_author = $authorHa['nome']." ". $authorHa['cognome'];
//echo "<p>";
if ($sess_id_course_instance == $node_instance){
switch (VIEW_PRIVATE_NOTES_ONLY){
case 0: // every node added by student or tutor of THIS course and of THIS instance are visible
$is_note_visibile = 0;
switch ($id_profile){
case AMA_TYPE_TUTOR:
$class_tutor_id = $dh->course_instance_tutor_get($sess_id_course_instance);
if (($class_tutor_id == $sess_id_user) &&
($autore == $sess_id_user )
){
$is_note_visibile = 1;
$alt = translateFN("Nota del tutor");
$node_author = translateFN(" del tutor");
$icon = "_nota_tutor.gif";
} else {
$author_dataHa = $dh->get_subscription($autore, $sess_id_course_instance);
if (!DB::isError($author_dataHa)){
$is_note_visibile = 1;
$alt = translateFN("Nota dello studente");
$node_author = translateFN("di")." ".$authorHa['username'];
$icon = "_nota.gif";
}
}
break;
case AMA_TYPE_AUTHOR:
$is_note_visibile = 0;
case AMA_TYPE_STUDENT:
$author_dataHa = $dh->get_subscription($autore, $sess_id_course_instance);
if (!DB::isError($author_dataHa)){
$is_note_visibile = 1;
$alt = translateFN("Nota dello studente");
$node_author = translateFN("di")." ".$authorHa['username'];
$icon = "_nota.gif";
}
}
if ($is_note_visibile){
$note_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_note.">$name</a> $node_author");
array_push($dataAr,$note_link);
}
break;
case 1: // only nodes added by this user and of THIS instance are visible
if ($autore==$sess_id_user)
{
$alt = translateFN("Nota privata");
$icon = "_nota.gif";
$note_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> <a href=view.php?id_node=".$id_note.">$name</a>");
array_push($dataAr,$note_link);
}
break;
default:
$alt = translateFN("Nota non visitabile");
$icon = "_unknown.gif";
$note_link = array("<img name=\"nota\" alt=\"$alt\" src=\"img/$icon\"> ".$node_data_Ha['name']);
array_push($dataAr,$note_link);
}
} else {
$is_note_visibile = 0;
}
}
}
$t = new Table();
$t->initTable('0','center','0','0','100%','white','','white','','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Indice delle note"));
return $t->getTable();
} else {
return translateFN("Nessuno")."<p>";
}
}
// fine filtro note
function get_mediaFN($user_level){
//global $HTTP_USER_AGENT;
//global $dh,$error, $media_path, $root_dir, $http_root_dir;
//global $sess_id_course;
//global $debug;
$HTTP_USER_AGENT = $GLOBALS['HTTP_USER_AGENT'];
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$media_path = $GLOBALS['media_path'];
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
$sess_id_course = $GLOBALS['sess_id_course'];
$debug = $GLOBALS['debug'];
$node_level = $this->level;
if ($node_level<=$user_level){
$script = "";
// filtro sui media:
// dovrebbe verificare se nel profilo dell'utente si richiede una navigazione text-only, se il browser è abilitato etc
// per ora controlla solo se il browser supporta javascript
// qui va inserita la versione CD/WEB
$dataAr = array();
if (!empty($this->media) and !is_object($this->media)){
$browser = $HTTP_USER_AGENT;
$javascript_ok = check_javascriptFN($browser);
$mediaAr = $this->media;
$dataAr = array();
foreach ($mediaAr as $res_id) {
$mediaObj = new Media($res_id);
$media_name = $mediaObj->file_name;
$media_type = $mediaObj->media_type;
/*global $debug; $debug=1;
mydebug(__LINE__,__FILE__,$mediaObj);
$debug=0;
*/
$author = $this->author['username'];
if (empty($media_path)) {
$clause = "username = '$author'";
$field_list = array();
$res = $dh->find_authors_list($field_list,$clause);
if (AMA_DataHandler::isError($res)){
$msg = $res->getMessage();
// header("Location: $error?err_msg=$msg");
}
$author_dir = $res['0']['0'];
$media_path = "courses/media/".$author_dir."/";
} else {
//echo $media_path;
}
if (!empty($media_name)) {
if (($media_type<3) OR (!stristr($media_name,"http:")))
{ // 0,1,2 + files
if (MEDIA_LOCAL_PATH!=null){
$file_name = MEDIA_LOCAL_PATH . $media_path . $media_name;
$file_name_http = MEDIA_LOCAL_PATH . $media_path . $media_name;
} else {
$file_name = $root_dir . $media_path . $media_name;
$file_name_http = $http_root_dir . $media_path . $media_name;
}
} else { // http
$file_name = $media_name;
$file_name_http = $media_name;
}
// echo "$file_name $file_name_http<br>";
}
//if (!empty($media_name)) {
// $file_name = $root_dir . $media_path . $media_name;
// $file_name_http = $http_root_dir . $media_path . $media_name;
if (($media_type<3) AND (file_exists($file_name))){
// Controllo del tipo di media
switch ($media_type) {
case 0: //img
$size = GetImageSize($file_name);
$x = $size[0];
$y = $size[1];
$r = 10;
/*
$debug=1;
mydebug(__LINE__,__FILE__,$file_name);
mydebug(__LINE__,__FILE__,$size);
$debug=0;
*/
switch (IMG_VIEWING_MODE){ // it would be better to use a property instead
case 2: // full img in page, only icon here
if ($javascript_ok) {
$link_media= "<img src=\"img/_img.gif\"> <A HREF=\"#\" ONCLICK=\"newWindow('$file_name_http',$x,$y)\">$media_name</a>";
} else {
$link_media= "<img src=\"img/_img.gif\"> <a href=\"$file_name_http\" target=\"img_win\" >$media_name</a>";
}
break;
case 1: // icon in page, a reduced size preview here
if ($javascript_ok) {
$link_media= "<img src=\"include/resize.php?img=$file_name&ratio=$r\"> <A HREF=\"#\" ONCLICK=\"newWindow('$file_name_http',$x,$y)\">$media_name</a>";
} else {
$link_media= "<img src=\"include/resize.php?img=$file_name&ratio=$r\"> <a href=\"$file_name_http\" target=\"img_win\" >$media_name</a>";
}
break;
case 0: // icon in page, icon here
default:
if ($javascript_ok) {
$link_media= "<img src=\"img/_img.gif\"> <A HREF=\"#\" ONCLICK=\"newWindow('$file_name_http',$x,$y)\">$media_name</a>";
} else {
$link_media = "<img src=\"img/_img.gif\"> <a href=\"$file_name_http\" target=\"img_win\" >$media_name</a>";
//mydebug(__LINE__,__FILE__,$link_media);
}
}
break;
case 1:
$link_media = "<img src=\"img/_audio.gif\"> <a href=\"$file_name_http\">$media_name</a>";
break;
case 2:
$link_media = "<img src=\"img/_video.gif\"> <a href=\"$file_name_http\" target=\"img_win\" >$media_name</a>";
break;
}
} else {
if ($media_type == 3){
if (stristr($media_name,"http")) {
$link_media = "<img src=\"img/_web.gif\"> <a href=\"$file_name_http\" target=\"img_win\" >".wordwrap($media_name,20,"\n",1)."</a>";
} else {
$link_media = "<img src=\"img/_linkext.gif\"> <a href=\"$file_name_http\" target=\"img_win\" >$media_name</a>";
}
} else {
$link_media =$media_name.": ".translateFN("non riconosciuto");
}
}
$ok_media = array ('media'=>$link_media);
array_push($dataAr,$ok_media);
}
}
/*
*/
if (count($dataAr)) {
$t = new Table();
$t->initTable('0','center','2','0','100%','blue','white','blue','white','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Indice dei Media collegati"));
$t->getTable();
return $t->data;
} else {
return "";
}
} else {
return translateFN("Nessuno");
}
//}
// fine filtro media
}
/*
// filtro sulla history:
// verifica se il nodo è già stato visitato
$node_id = $this->id;
$user_historyAr = explode(',',$user_history);
// mydebug(__LINE__,__FILE__,$user_historyAr);
$visitato = in_array($node_id, $user_historyAr);
if ($visitato){
$quantevolteAr = array_count_values($user_historyAr);
$quantevolte = $quantevolteAr[$node_id];
$htmldataHa['text'] .= "<p>$quantevolte".translateFN("Questo nodo è stato già visitato $quantevolte volte.")."</p>";
} else {
$htmldataHa['text'] .= "<p>".translateFN("E' la prima volta che visiti questo nodo.")."</p>";
}
// fine filtro history
*/
function get_user_mediaFN($user_level){
// indexing files
$root_dir = $GLOBALS['root_dir'];
$http_root_dir = $GLOBALS['http_root_dir'];
$sess_id_course_instance = $_SESSION['sess_id_course_instance'];
$sess_id_course = $_SESSION['sess_id_course'];
$sess_id_node = $_SESSION['sess_id_node'];
$dh = $GLOBALS['dh'];
$course_ha = $dh->get_course($sess_id_course);
if (AMA_DataHandler::isError($course_ha)){ // not enrolled yet?
return "";
}
$author_id = $course_ha['id_autore'];
$elencofile = $this->read_user_dirFN("$root_dir/courses/media/$author_id");
if ($elencofile == NULL)//($stop<1)
return "";
$stop = count($elencofile);
$media = "<p><strong>".translateFN("Media inviati dalla classe")."</strong><br>";
$dataAr = array();
$lObj = new IList();
$lObj->initList('0','disc',1);
for ($i=0; $i<$stop; $i++){
$data = $elencofile[$i]['data'];
$complete_file_name = $elencofile[$i]['file'];
// rebuilding true file name
// rootdir + media path + author_id + filename + id_course_instance + user_id + node_id
// ex. 111_27_113_0_example.txt'
$filenameAr = explode('_',$complete_file_name);
$stop = count($filenameAr)-1;
$course_instance = $filenameAr[0];
$id_sender = $filenameAr[1];
$id_node = $filenameAr[2]."_".$filenameAr[3];
$filename = "";
for ($k = 4; $k<=$stop;$k++){
$filename .= $filenameAr[$k];
if ($k<$stop)
$filename .= "_";
}
$senderObj = read_user_from_DB($id_sender);
if ((is_object($senderObj)) OR (!empty($senderObj->error_msg))) {
$id_profile = $senderObj->tipo;
switch ($id_profile){
case AMA_TYPE_STUDENT:
case AMA_TYPE_AUTHOR:
case AMA_TYPE_TUTOR:
$user_name = $senderObj->username;
break;
default:
// errore
$sender_error = 1;
}
}
if ((!$sender_error) AND ($course_instance == $sess_id_course_instance)){
if (!isset($fid_node) OR ($fid_node == $sess_id_node))
array_push($dataAr,"<a href=\"$http_root_dir/user/index.php?module=download.php&file=$complete_file_name\" target=_blank>$filename</a> <br> $user_name : $data");
}
}
$lObj->setList($dataAr);
$var = $lObj->getList();
$media.="$var</p>\n";
return $media;
}
// functions
function read_user_dirFN($dir){
$nomedata = array();
$elencofile = "";
$dirid = @opendir($dir);
if ($dirid){
$i = 0;
while (($file = readdir($dirid))!=false){
if (
(stristr($dir.$file,".txt")) OR
(stristr($dir.$file,".doc")) OR
(stristr($dir.$file,".xls")) OR
(stristr($dir.$file,".rtf")) OR
(stristr($dir.$file,".ppt")) OR
(stristr($dir.$file,".htm")) OR
(stristr($dir.$file,".pdf")) OR
(stristr($dir.$file,".jpg")) OR
(stristr($dir.$file,".gif"))
){
$elencofile[$i]['file'] = $dir."/".$file;
$filetime = date("d/m/y",filemtime($dir."/".$file));
$elencofile[$i]['data'] = $filetime;
$elencofile[$i]['file'] = $file;
$i++;
}
}
closedir ($dirid);
// va ordinato ora
if (is_array($elencofile)){
sort($elencofile);
reset($elencofile);
}
}
return $elencofile;
}
/* da implementare ancora: */
function is_allowedFN($command,$id_profile){
$dh = $GLOBALS['dh'];
// $dataHa = $dh->get_info($id_profile);
switch ($id_profile){
case AMA_TYPE_AUTHOR:
return TRUE;
break;
case AMA_TYPE_STUDENT:
case AMA_TYPE_TUTOR:
return FALSE;
break;
default:
return FALSE;
}
}
function edit($id_profile){
// va al form di modifica del nodo attuale se l'utente ha le permission giuste
$sess_id_node = $GLOBALS['sess_id_node'];
$id_node = $this->id;
if ($this->is_allowedFN('modify',$id_profile)){
header("Location: ../courses/edit_node.php?op=edit&id_node=$sess_id_node");
};
}
function delete($id_profile){
// elimina il nodo attuale se l'utente ha le permission giuste
$dh = $GLOBALS['dh'];
$id_node = $this->id;
if ($this->is_allowedFN('delete',$id_profile)){
header("Location: ../courses/edit_node.php?op=delete&id_node=$sess_id_node");
};
}
/* OTHER FUNCTIONS
function send($id_user){
//etc
}
function print($id_user){
//etc
}
function link($id_user){
// etc
}
function execute($id_user){
// esegue lo script associato al nodo attuale se l'utente ha le permission giuste
}
function annotate(){}
*/
} //end class node
class Exercise extends Node {
function get_exerciseFN($user_level=1,$user_history='',$id_node){
//global $dh,$error,$self;
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$self = $GLOBALS['self'];
$debug = $GLOBALS['debug'];
$dataAr = array();
$children = $this->children;
$node_dataHa = $dh->get_node_info($id_node);
// mydebug(__LINE__,__FILE__,$children);
$text = array($this->text);
array_push($dataAr,$text);
// $exercise_type = count($children); // 0: open, 1:single , >1:multiple choice
$exercise_type = $node_dataHa['type']; // 3 - Multiple Answer, 4 - Free Answer, 5 - Single answer with check, 6 - Cloze
$fields["add"][]="op";
$names["add"][]="";
$edittypes["add"][]="hidden";
$necessary["add"][]="";
$values["add"][]="answer";
$options["add"][]="";
$maxsize["add"][]="";
$fields["add"][]="exercise_type";
$names["add"][]="";
$edittypes["add"][]="hidden";
$necessary["add"][]="";
$values["add"][]=$exercise_type;
$options["add"][]="";
$maxsize["add"][]="";
switch ($exercise_type){
case 4:
// open type with manual feedback
$risp_desc = translateFN('Risposta:');
$fields["add"][]="useranswer";
$names["add"][]=$risp_desc; //translateFN('Risposta');
$edittypes["add"][]="textarea";
$necessary["add"][]="";
$values["add"][]="";
$options["add"][]="";
$maxsize["add"][]=400;
// input file
$fields["add"][]="file_up";
$names["add"][]="File allegato:";
$edittypes["add"][]="file";
$necessary["add"][]="";
$values["add"][]="";
$options["add"][]="";
$maxsize["add"][]=255;
// creazione del form
$form = MakeForm($fields,$names,$edittypes,$necessary,$values,$options,$maxsize,$self.".php?id_node=$id_node","add",false,true);
array_push($dataAr,array($form));
break;
case 5:
// open type with automatic feedback
$fields["add"][]="useranswer";
$names["add"][]=""; //translateFN('Risposta');
$edittypes["add"][]="textarea";
$necessary["add"][]="";
$values["add"][]="";
$options["add"][]="";
$maxsize["add"][]=400;
// creazione del form
$form = MakeForm($fields,$names,$edittypes,$necessary,$values,$options,$maxsize,$self.".php?id_node=$id_node","add",false,true);
array_push($dataAr,array($form));
break;
case 3:
// Multiple Answer
default:
// multiple choice type
$k=0;
if (is_array($children)) {
foreach ($children as $id_child) {
if (!empty($id_child)){
$k++;
//$node_childObj = new Node($id_child);
//$children_link = array(" ","<img name=gruppo alt=\"nodo\" src=\"img/_nodo.gif\"> <a href=view.php?id_node=".$id_child.">".$node_childObj->name."</a>");
$answ_dataHa = $dh->get_node_info($id_child);
$fields["add"][]="useranswer[]"; // name
$names["add"][]=$k." ".$answ_dataHa['name'].":"; // label
$edittypes["add"][]="radio";
$necessary["add"][]="";
$values["add"][]=$id_child.":";
$options["add"][]=$id_child.":";
$maxsize["add"][]=32;
// $answer = array(translateFN("Risposta n.").$k,"<a href=exercise.php?op=answer&choice=".$id_child.">".$answ_dataHa['name']."</a>");
// OPPURE $answer = array(translateFN("Risposta n.").$k,"<a href=exercise.php?op=answer&choice=".$id_child.">".$answ_dataHa['text']."</a>");
// array_push($dataAr,$answer);
}
}
$form = MakeForm($fields,$names,$edittypes,$necessary,$values,$options,$maxsize,$self.".php?id_node=$id_node","add",false,true);
array_push($dataAr,array($form));
}
}
$t = new Table();
$t->initTable('0','center','0','0','100%','','','','','0','0');
$t->setTable($dataAr,$caption="",$summary=translateFN("Esercizio:"));
$t->getTable();
return $t->data;
}
function get_surveyFN($user_level=1,$user_history='',$id_node){
$sess_id_course_instance = $GLOBALS['sess_id_course_instance'];
$sess_id_course = $GLOBALS['sess_id_course'];
$dh = $GLOBALS['dh'];
$dataAr = array();
$children = $this->children;
//$node_dataHa = $dh->get_node_info($id_node);
// mydebug(__LINE__,__FILE__,$children);
$textAr = array(
array('testo'=>$this->text)
);
$t = new Table();
$t->initTable('0','center','0','0','100%','','','','','0','0');
$t->setTable($textAr,$caption=translateFN("Esercizio:"),$summary=translateFN("Esercizio:"));
$t->getTable();
$text = $t->data;
// $exercise_type = count($children); // 0: open, 1:single , >1:multiple choice
$exercise_type = $node_dataHa['type']; //
switch ($exercise_type){
case 4:
case 5:
break;
case 3:
default:
if (is_array($children)) {
$visit_countAr = array(
array ('label'=>translateFN("Risposta"),'punteggio'=>translateFN("Punteggio"),'visits'=>translateFN("Corsisti"))
);
foreach ($children as $id_child) {
if (!empty($id_child)){
$k++;
$ans_dataHa = $dh->get_node_info($id_child);
$visits = User::exer_is_visited_by_classFN($id_child,$sess_id_course_instance,$sess_id_course);
$visit_countAr[] = array (
'label'=>"<a href=\"view.php?id_node=$id_child\">".$ans_dataHa['name']."</a>",
'punteggio'=>$ans_dataHa['correctness'],
'visits'=>$visits
);
}
}
}
}
$t = new Table();
$t->initTable('0','center','0','0','100%','','','','','0','0');
$t->setTable($visit_countAr,$caption=translateFN("Risposte:"),$summary=translateFN("Risposte:"));
$t->getTable();
$survey = $t->data;
return $text.$survey;
}
} //end class exercise
class Resource
{
var $id_resource;
var $full;
var $error_msg;
} //end class Resource
class Media extends Resource
{
var $file_name;
var $media_type;
var $media_copyright;
function media($res_id) {
//global $dh,$error;
// constructor
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$dataHa = $dh->get_risorsa_esterna_info($res_id);
if (AMA_DataHandler::isError($dataHa) || (!is_array($dataHa))){
$msg = $dataHa->getMessage();
if (!strstr ($msg, 'record not found')) {
header("Location: $error?err_msg=$msg");
exit;
} else {
$this->full = 1;
return $msg;
}
}
if (!empty($dataHa['nome_file'])){
$mediaHa = $dataHa;
$this->file_name = $mediaHa['nome_file'];
$this->media_type = $mediaHa['tipo'];
$this->media_copyright = $mediaHa['copyright'];
$this->full = 1;
} else {
$this->error_msg = translateFN("Nessuno");
}
}
}
class Link extends Resource
{
var $position;
var $type;
var $node_id;
var $author;
var $meaning;
var $creation_date;
var $to_node_id;
var $style;
var $action;
function link($id_link){
//global $dh,$error;
// constructor
$dh = $GLOBALS['dh'];
$error = $GLOBALS['error'];
$debug = $GLOBALS['debug'];
$dataHa = $dh->get_link_info($id_link);
if (AMA_DataHandler::isError($dataHa) || (!is_array($dataHa))){
$msg = $dataHa->getMessage();
if (!strstr ($msg, 'record not found')) {
header("Location: $error?err_msg=$msg");
exit;
} else {
$this->full = 1;
return $msg;
}
}
if (!empty($dataHa['id_nodo'])){
// foreach ($dataHa as $linkHa) {
$linkHa = $dataHa; //?? è uno solo???
$this->position = $linkHa['posizione'];
$this->author = $linkHa['autore'];
$this->node_id = $linkHa['id_nodo'];
$this->to_node_id = $linkHa['id_nodo_to'];
$this->type = $linkHa['tipo'];
$this->creation_date = $linkHa['data_creazione'];
$this->style = $linkHa['stile'];
$this->action = $linkHa['azione'];
$this->meaning = $linkHa['significato'];
// }
$this->full = 1;
} else {
$this->error_msg = translateFN("Nessuno");
}
}
}
// end class Link
?>
*****************************
index.php***********************************
<?php
//
// +----------------------------------------------------------------------+
// | ADA version 1.7 |
// +----------------------------------------------------------------------+
// | Copyright (c) 2001-2004 Lynx |
// +----------------------------------------------------------------------+
// | |
// | I N D E X | |
// | |
// | |
// | |
// | |
// +----------------------------------------------------------------------+
// | Author: Stefano Penge <steve@lynxlab.com> |
// | |
// +----------------------------------------------------------------------+
//
// $Id: index.php,v 1.7 2004/05/05
//
$debug=0;
/* 1
included modules and default values
*/
$ada_config_path = realpath(dirname(__FILE__));
include_once($ada_config_path.'/config_path.inc.php');
@session_destroy();
session_start();
session_register("sess_id_user");
session_register("sess_id_user_type");
session_register("sess_user_language");
include_once("$root_dir/browsing/include/includes.inc.php");
include_once("$root_dir/include/aut/login.inc.php");
// Configuration domain vs requested domain
$serv_temp = substr($http_root_dir,7);
$n = strpos($serv_temp,"/");
$server = substr($serv_temp,0,$n);
$real_server = $_SERVER['SERVER_ADDR'];
if ($real_server != $server){
//header("Location: $http_root_dir/index.php");
// Warning: this feature doesn't work if you have more installations of ADA at the same address
// echo "<!-- Config domain ($server) is different from requested domain ($real_server) -->\n";
}
$self = 'index';
$session_id_par = get_param_stringFN(); // data session passed as http GET parameters
$dh = new AMA_DataHandler(); // init ADA Middle API
$ymdhms = today_dateFN();
$ada_ver = ADA_VERSION;
/* 2.
finding all available courses
*/
$field_list_ar = array('nome','titolo','data_pubblicazione');
$clause = ''; // matching conditions: ...
$dataHa = $dh->find_courses_list($field_list_ar, $clause);
if (AMA_DataHandler::isError($dataHa)){
$msg = $dataHa->getMessage();
echo "<b>Error: $msg</b>";
// header("Location: $error?err_msg=$msg");
}
$course_dataHa = array();
foreach($dataHa as $course){
$id = $course[0];
$nome = $course[1];
$titolo = $course[2];
$data = getdate($course[3]);
$row = array(
translateFN('Nome')=>"<img src=\"img/title.gif\" border=0> $nome",
translateFN('Titolo')=>"<a href=info.php?$session_id_par"."id_course=$id> ".$titolo."</a>",
translateFN('Data')=>"<img src=\"img/flag.gif\" border=0> ".$data['mday']."/".$data['mon']."/".$data['year']
);
array_push($course_dataHa,$row);
}
$tObj = new Table();
//$tObj->initTable('1','center','0','1','100%','','','','',1,1);
$tObj->initTable('1','left','2','1','100%','','','','',1,1);
$caption = translateFN("Corsi attivi il $ymdhms");
$summary = translateFN("Elenco dei corsi attivi");
$tObj->setTable($course_dataHa,$caption,$summary);
$total_course_data = $tObj->getTable();
/* 3.
building login form
*/
$login_dataHa = array(
array(
'label'=>translateFN('Utente'),
'type'=>'text',
'name'=>'username',
'size'=>'20',
'maxlenght'=>'40'
),
array(
'label'=>translateFN('Password'),
'type'=>'password',
'name'=>'password',
'size'=>'20',
'maxlength'=>'40'
),
array(
'label'=>translateFN('Lingua'),
'type'=>'select',
'name'=>'user_language',
'value'=>array('italiano','english','fran�is','deutsch','espanol'),
'selected'=>$sess_user_language
),
array(
'label'=>'',
'type'=>'submit',
'name'=>'Submit',
'value'=>translateFN('Entra')
),
array(
'label'=>translateFN('Non sei un utente registrato?'),
'type'=>'submit',
'name'=>'Register',
'value'=>translateFN('Registrati')
)
);
$fObj = new Form();
$fObj->setForm($login_dataHa);
$login_form = $fObj->getForm();
/* 4.
Welcome message (from ext file)
*/
$newsfile = 'news_'.strtolower(substr($language,0,2)).'.txt';
$infofile = 'info_'.strtolower(substr($language,0,2)).'.txt';
$helpfile = 'hlp_'.strtolower(substr($language,0,2)).'.txt';
$infomsg = '';
$newsmsg = '';
$hlpmsg = '';
// $newsfile = $root_dir."/".$newsfile; txt files in ADA root directory
$newsfile = $root_dir."/user/".$newsfile; // txt files in ADA user directory
if ($fid = @fopen($newsfile,'r')){
while (!feof($fid))
$newsmsg .= fread($fid,4096);
fclose($fid);
} else {
$newsmsg = translateFN("File info non trovato");
}
// $helpfile = $root_dir."/".$helpfile; txt files in ADA root directory
$helpfile = $root_dir."/user/".$helpfile; // txt files in ADA user directory
if ($fid = @fopen($helpfile,'r')){
while (!feof($fid))
$hlpmsg .= fread($fid,4096);
fclose($fid);
} else {
$hlpmsg = translateFN("File help non trovato");
}
/* 5.
building HTML page
*/
$banner = include ("$root_dir/include/banner.inc.php");
if (isset($err_msg)){
$message = $err_msg;
} else {
$message = translateFN("Powered by ADA - Ver.").$ada_ver;
}
$menu = "<a href=\"info.php\">".translateFN("elenco corsi")."</a><br>";
$menu .= "<a href=\"browsing/registration.php\">".translateFN("registrazione")."</a><br>";
$home = "<a href=\"index.php\">".translateFN("home")."</a>";
$title=PORTAL_NAME.">".translateFN("Login");
// Controllo per compatibilita' con vecchie versioni di php
// fino alla 4.1 esclusa non esiste l'array $_POST
if (isset($_POST)) {
if (in_array("Submit",array_keys($_POST)))
$Submit = $_POST['Submit'];
if (in_array("username",array_keys($_POST)))
$username = $_POST['username'];
if (in_array("password",array_keys($_POST)))
$password = $_POST['password'];
if (in_array("user_language",array_keys($_POST))){
$sess_user_language = $_POST['user_language'];
}
}
if(isset($Submit)){
// data check 1: have been all the fields fulfilled ?
if (empty($username) || empty($password) ){
$message = translateFN("Username e/o password sono obbligatori. Riprovare.");
$field_data = array('form'=>$login_form,
'message'=>$message,
'course_list'=>$total_course_data
);
$login_err = $message;
} else {
$login_err = login($username,$password);
//mydebug(__LINE__,__FILE__,$login_err);
}
// data check 2: are login data valid?
if (!empty($login_err)){
// $message = translateFN("Username e/o password non validi. Errore: $login_err.");
$message = translateFN("Username e/o password non validi. Riprovare.");
$field_data = array('form'=>$login_form,
'message'=>$message,
'course_list'=>$total_course_data
);
} else {
// ok: redirect
switch ($sess_id_user_type){
case AMA_TYPE_AUTHOR:
header("Location: courses/menu.php");
exit;
case AMA_TYPE_ADMIN:
header("Location: admin/menu.php");
exit;
case AMA_TYPE_STUDENT:
header("Location: browsing/student.php");
exit;
case AMA_TYPE_TUTOR:
header("Location: tutor/tutor.php");
exit;
default:
$message = translateFN("Utente di tipo sconosciuto:"). $sess_id_user_type;
$field_data = array('form'=>$login_form,
'message'=>$message,
'course_list'=>$total_course_data
);
//header("Location: $error?err_msg=$msg");
//exit;
}
}
} elseif (isset($Register)){
// new user
header("Location: $http_root_dir/browsing/registration.php");
exit;
} else {
// first time
$field_data = array(
'banner'=>$banner,
'home'=>$home,
'text'=>$newsmsg,
'help'=>$hlpmsg,
'menu'=>$menu,
'form'=>"<p align=right>".$login_form."</p>",
'message'=>$message,
'course_list'=>$total_course_data
);
}
/* 5.
building data for browser
*/
if (!isset($family))
$family = ADA_TEMPLATE_FAMILY; // default
$id_profile = AMA_TYPE_STUDENT; // default
$layoutObj = read_layout_from_DB($id_profile,$family,"","");
$layout_CSS = $layoutObj->CSS_filename;
$layout_template = $layoutObj->template;
$htmlObj = new HTML($layout_template,$layout_CSS,"","","");
//$htmlObj-> verify_templateFN($dataHa);
$htmlObj->fillin_templateFN($field_data);
$imgpath = (dirname($layout_template));
$htmlObj-> resetImgSrcFN($imgpath);
$htmlObj->apply_CSSFN();
$htmlObj->session_id_par = '';
/* 6.
sending all the stuff to the browser
*/
$htmlObj->outputFN('page');
?>
*****************************************