677 lines
21 KiB
677 lines
21 KiB
<?php
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/* See license terms in /license.txt */
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/**
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* EVENTS LIBRARY
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*
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* This is the events library for Dokeos.
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* Include/require it in your code to use its functionality.
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* Functions of this library are used to record informations when some kind
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* of event occur. Each event has his own types of informations then each event
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* use its own function.
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*
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* @package dokeos.library
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* @todo convert queries to use Database API
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*/
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/* INIT SECTION */
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// REGROUP TABLE NAMES FOR MAINTENANCE PURPOSE
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$TABLETRACK_LOGIN = $_configuration['statistics_database'].".track_e_login";
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$TABLETRACK_OPEN = $_configuration['statistics_database'].".track_e_open";
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$TABLETRACK_ACCESS = $_configuration['statistics_database'].".track_e_access";
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$TABLETRACK_DOWNLOADS = $_configuration['statistics_database'].".track_e_downloads";
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$TABLETRACK_UPLOADS = $_configuration['statistics_database'].".track_e_uploads";
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$TABLETRACK_LINKS = $_configuration['statistics_database'].".track_e_links";
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$TABLETRACK_EXERCICES = $_configuration['statistics_database'].".track_e_exercices";
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$TABLETRACK_SUBSCRIPTIONS = $_configuration['statistics_database'].".track_e_subscriptions";
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$TABLETRACK_LASTACCESS = $_configuration['statistics_database'].".track_e_lastaccess"; //for "what's new" notification
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$TABLETRACK_DEFAULT = $_configuration['statistics_database'].".track_e_default";
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/* FUNCTIONS */
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/**
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for open event (when homepage is opened)
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*/
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function event_open()
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{
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global $_configuration;
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global $TABLETRACK_OPEN;
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled'])
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{
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return 0;
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}
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// @getHostByAddr($_SERVER['REMOTE_ADDR']) : will provide host and country information
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// $_SERVER['HTTP_USER_AGENT'] : will provide browser and os information
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// $_SERVER['HTTP_REFERER'] : provide information about refering url
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if(isset($_SERVER['HTT_REFERER']))
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{
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$referer = Database::escape_string($_SERVER['HTTP_REFERER']);
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}
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else
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{
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$referer = '';
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}
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// record informations only if user comes from another site
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//if(!eregi($_configuration['root_web'],$referer))
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$pos = strpos($referer, $_configuration['root_web']);
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if ($pos === false && $referer != '')
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{
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$remhost = @ getHostByAddr($_SERVER['REMOTE_ADDR']);
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if ($remhost == $_SERVER['REMOTE_ADDR'])
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$remhost = "Unknown"; // don't change this
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$reallyNow = time();
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$sql = "INSERT INTO ".$TABLETRACK_OPEN."
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(open_remote_host,
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open_agent,
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open_referer,
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open_date)
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VALUES
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('".$remhost."',
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'".Database::escape_string($_SERVER['HTTP_USER_AGENT'])."', '".Database::escape_string($referer)."', FROM_UNIXTIME($reallyNow) )";
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$res = Database::query($sql);
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}
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return 1;
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}
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/**
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for login event
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* (when an user identifies himself with username & password)
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*/
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function event_login()
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{
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global $_configuration;
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global $_user;
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global $TABLETRACK_LOGIN;
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled']) {
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return 0;
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}
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$reallyNow = time();
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$sql = "INSERT INTO ".$TABLETRACK_LOGIN." (login_user_id, login_ip, login_date, logout_date)
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VALUES ('".$_user['user_id']."',
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'".Database::escape_string($_SERVER['REMOTE_ADDR'])."',
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FROM_UNIXTIME(".$reallyNow."),
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FROM_UNIXTIME(".$reallyNow.")
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)";
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$res = Database::query($sql);
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}
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/**
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* @param tool name of the tool (name in mainDb.accueil table)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for access event for courses
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*/
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function event_access_course()
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{
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global $_configuration;
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global $_user;
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global $_cid;
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global $TABLETRACK_ACCESS;
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global $TABLETRACK_LASTACCESS; //for "what's new" notification
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled']){
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return 0;
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}
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$id_session = api_get_session_id();
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$reallyNow = time();
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if ($_user['user_id']) {
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$user_id = "'".$_user['user_id']."'";
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} else {
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$user_id = "0"; // no one
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}
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$sql = "INSERT INTO ".$TABLETRACK_ACCESS."
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(access_user_id,
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access_cours_code,
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access_date,
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access_session_id)
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VALUES
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(".$user_id.",
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'".$_cid."',
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FROM_UNIXTIME(".$reallyNow."),
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'".$id_session."')";
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$res = Database::query($sql);
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// added for "what's new" notification
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$sql = " UPDATE $TABLETRACK_LASTACCESS
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SET access_date = FROM_UNIXTIME($reallyNow)
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WHERE access_user_id = ".$user_id." AND access_cours_code = '".$_cid."' AND access_tool IS NULL AND access_session_id=".$id_session;
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$res = Database::query($sql);
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if (Database::affected_rows() == 0) {
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$sql = " INSERT INTO $TABLETRACK_LASTACCESS
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(access_user_id,access_cours_code,access_date, access_session_id)
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VALUES
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(".$user_id.", '".$_cid."', FROM_UNIXTIME($reallyNow), ".$id_session.")";
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$res = Database::query($sql);
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}
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// end "what's new" notification
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return 1;
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}
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/**
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* @param tool name of the tool (name in mainDb.accueil table)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for access event for tools
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*
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* $tool can take this values :
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* Links, Calendar, Document, Announcements,
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* Group, Video, Works, Users, Exercices, Course Desc
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* ...
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* Values can be added if new modules are created (15char max)
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* I encourage to use $nameTool as $tool when calling this function
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*
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* Functionality for "what's new" notification is added by Toon Van Hoecke
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*/
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function event_access_tool($tool, $id_session=0)
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{
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global $_configuration;
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// if tracking is disabled record nothing
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// if( ! $_configuration['tracking_enabled'] ) return 0; //commented because "what's new" notification must always occur
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global $_user;
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global $_cid;
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global $TABLETRACK_ACCESS;
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global $_configuration;
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global $_course;
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global $TABLETRACK_LASTACCESS; //for "what's new" notification
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$id_session = api_get_session_id();
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$tool = Database::escape_string($tool);
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$reallyNow = time();
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$user_id = $_user['user_id'] ? "'".$_user['user_id']."'" : "0"; // no one
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// record information
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// only if user comes from the course $_cid
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//if( eregi($_configuration['root_web'].$_cid,$_SERVER['HTTP_REFERER'] ) )
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//$pos = strpos($_SERVER['HTTP_REFERER'],$_configuration['root_web'].$_cid);
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$pos = strpos(strtolower($_SERVER['HTTP_REFERER']), strtolower(api_get_path(WEB_COURSE_PATH).$_course['path']));
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// added for "what's new" notification
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$pos2 = strpos(strtolower($_SERVER['HTTP_REFERER']), strtolower($_configuration['root_web']."index"));
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// end "what's new" notification
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if ($_configuration['tracking_enabled'] && ($pos !== false || $pos2 !== false)) {
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$sql = "INSERT INTO ".$TABLETRACK_ACCESS."
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(access_user_id,
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access_cours_code,
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access_tool,
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access_date,
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access_session_id
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)
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VALUES
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(".$user_id.",".// Don't add ' ' around value, it's already done.
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"'".$_cid."' ,
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'".$tool."',
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FROM_UNIXTIME(".$reallyNow."),
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'".$id_session."')";
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$res = Database::query($sql);
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}
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// "what's new" notification
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$sql = "UPDATE $TABLETRACK_LASTACCESS
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SET access_date = FROM_UNIXTIME($reallyNow)
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WHERE access_user_id = ".$user_id." AND access_cours_code = '".$_cid."' AND access_tool = '".$tool."' AND access_session_id=".$id_session;
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$res = Database::query($sql);
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if (Database::affected_rows() == 0) {
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$sql = "INSERT INTO $TABLETRACK_LASTACCESS (access_user_id,access_cours_code,access_tool, access_date, access_session_id)
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VALUES (".$user_id.", '".$_cid."' , '".$tool."', FROM_UNIXTIME($reallyNow), $id_session)";
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$res = Database::query($sql);
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}
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return 1;
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}
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/**
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* @param doc_id id of document (id in mainDb.document table)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for download event
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* (when an user click to d/l a document)
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* it will be used in a redirection page
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* bug fixed: Roan Embrechts
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* Roan:
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* The user id is put in single quotes,
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* (why? perhaps to prevent sql insertion hacks?)
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* and later again.
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* Doing this twice causes an error, I remove one of them.
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*/
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function event_download($doc_url)
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{
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global $_configuration, $_user, $_cid;
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$tbl_stats_downloads = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_DOWNLOADS);
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled']) {
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return 0;
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}
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$reallyNow = time();
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if ($_user['user_id']) {
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$user_id = "'".$_user['user_id']."'";
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} else {
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$user_id = "0";
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}
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$sql = "INSERT INTO $tbl_stats_downloads
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(
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down_user_id,
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down_cours_id,
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down_doc_path,
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down_date,
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down_session_id
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)
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VALUES
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(
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".$user_id.",
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'".$_cid."',
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'".htmlspecialchars($doc_url, ENT_QUOTES)."',
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FROM_UNIXTIME(".$reallyNow."),
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'".api_get_session_id()."'
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)";
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$res = Database::query($sql);
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return 1;
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}
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/**
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* @param doc_id id of document (id in mainDb.document table)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for upload event
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* used in the works tool to record informations when
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* an user upload 1 work
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*/
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function event_upload($doc_id)
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{
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global $_configuration;
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global $_user;
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global $_cid;
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global $TABLETRACK_UPLOADS;
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled']) {
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return 0;
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}
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$reallyNow = time();
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if (isset($_user['user_id']) && $_user['user_id']!='') {
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$user_id = "'".$_user['user_id']."'";
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} else {
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$user_id = "0"; // anonymous
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}
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$sql = "INSERT INTO ".$TABLETRACK_UPLOADS."
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( upload_user_id,
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upload_cours_id,
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upload_work_id,
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upload_date,
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upload_session_id
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)
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VALUES (
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".$user_id.",
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'".$_cid."',
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'".$doc_id."',
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FROM_UNIXTIME(".$reallyNow."),
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'".api_get_session_id()."'
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)";
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$res = Database::query($sql);
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return 1;
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}
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/**
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* @param link_id (id in coursDb liens table)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @desc Record information for link event (when an user click on an added link)
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* it will be used in a redirection page
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*/
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function event_link($link_id)
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{
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global $_configuration, $_user, $_cid;
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global $TABLETRACK_LINKS;
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// if tracking is disabled record nothing
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if (!$_configuration['tracking_enabled']) {
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return 0;
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}
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$reallyNow = time();
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if (isset($_user['user_id']) && $_user['user_id']!='') {
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$user_id = "'".Database::escape_string($_user['user_id'])."'";
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} else {
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// anonymous
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$user_id = "0";
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}
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$sql = "INSERT INTO ".$TABLETRACK_LINKS."
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( links_user_id,
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links_cours_id,
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links_link_id,
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links_date,
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links_session_id
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)
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VALUES
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(
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".$user_id.",
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'".$_cid."',
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'".Database::escape_string($link_id)."',
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FROM_UNIXTIME(".$reallyNow."),
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'".api_get_session_id()."'
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)";
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$res = Database::query($sql);
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return 1;
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}
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/**
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* @param exeid ( id of the exercise)
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* @param exo_id ( id in courseDb exercices table )
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* @param result ( score @ exercice )
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* @param weighting ( higher score )
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* @param duration ( duration of the attempt, in seconds )
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* @param session_id
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* @param learnpath_id (id of the learnpath)
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* @param learnpath_item_id (id of the learnpath_item)
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* @author Sebastien Piraux <piraux_seb@hotmail.com>
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* @author Julio Montoya Armas <gugli100@gmail.com>
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* @desc Record result of user when an exercice was done
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*/
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function update_event_exercice($exeid,$exo_id, $score, $weighting,$session_id,$learnpath_id=0,$learnpath_item_id=0, $duration)
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{
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if ($exeid!='') {
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// Validation in case of fraud with actived control time
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$course_code = api_get_course_id();
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$current_expired_time_key = $course_code.'_'.$session_id.'_'.$exeid;
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if (isset($_SESSION['expired_time'][$current_expired_time_key])) { //Only for exercice of type "One page"
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$current_time = time();
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$expired_date = $_SESSION['expired_time'][$current_expired_time_key];
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$expired_time = strtotime($expired_date);
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$total_time_allowed = $expired_time + 30;
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if ($total_time_allowed < $current_time) {
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$score = 0;
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}
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}
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$now = time();
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//Validation in case of wrong start_date
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if (isset($_SESSION['exercice_start_date'])) {
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$start_date = $_SESSION['exercice_start_date'];
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$diff = abs($start_date - $now);
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if ($diff > 14400) { // 14400 = 4h*60*60 more than 4h of diff
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$start_date = $now - 1800; // Now - 30min
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}
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}
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$TABLETRACK_EXERCICES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
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$sql = "UPDATE $TABLETRACK_EXERCICES SET
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exe_exo_id = '".Database::escape_string($exo_id)."',
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exe_result = '".Database::escape_string($score)."',
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exe_weighting = '".Database::escape_string($weighting)."',
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session_id = '".Database::escape_string($session_id)."',
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orig_lp_id = '".Database::escape_string($learnpath_id)."',
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orig_lp_item_id = '".Database::escape_string($learnpath_item_id)."',
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exe_duration = '".Database::escape_string($duration)."',
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exe_date= FROM_UNIXTIME(".$now."),status = '', data_tracking='', start_date = FROM_UNIXTIME(".Database::escape_string($start_date).")
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WHERE exe_id = '".Database::escape_string($exeid)."'";
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$res = @Database::query($sql);
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unset($_SESSION['expired_time'][$current_expired_time_key]);
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return $res;
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} else
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return false;
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}
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/**
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* This function creates an empty Exercise in STATISTIC_TRACK_E_EXERCICES table.
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* After that in exercise_result.php we call the update_event_exercice() to update the exercise
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* @return $id the last id registered
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* @author Julio Montoya <gugli100@gmail.com>
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* @desc Record result of user when an exercice was done
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*/
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function create_event_exercice($exo_id)
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{
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global $_user, $_cid, $_configuration;
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$TABLETRACK_EXERCICES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
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$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
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$reallyNow = time();
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if (isset($_user['user_id']) && $_user['user_id']!='') {
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$user_id = "'".$_user['user_id']."'";
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} else {
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// anonymous
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$user_id = "0";
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}
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if(defined('ENABLED_LIVE_EXERCISE_TRACKING')){
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$condition = ' WHERE ' .
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'exe_exo_id = '."'".Database::escape_string($exo_id)."'".' AND ' .
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'exe_user_id = '."'".api_get_user_id()."'".' AND ' .
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'exe_cours_id = '."'".$_cid."'".' AND ' .
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'status = '."'incomplete'".' AND '.
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'session_id = '."'".api_get_session_id()."'";
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$sql = Database::query('SELECT exe_id FROM '.$TABLETRACK_EXERCICES.$condition);
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$row = Database::fetch_array($sql);
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return $row['exe_id'];
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}
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// get exercise id
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$sql_exe_id='SELECT exercises.id FROM '.$TBL_EXERCICES.' as exercises, '.$TABLETRACK_EXERCICES.' as track_exercises WHERE exercises.id=track_exercises.exe_exo_id AND track_exercises.exe_id="'.Database::escape_string($exo_id).'"';
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$res_exe_id=Database::query($sql_exe_id);
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$row_exe_id=Database::fetch_row($res_exe_id);
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$exercise_id = intval($row_exe_id[0]);
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// get expired_date
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$course_code = api_get_course_id();
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$session_id = api_get_session_id();
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$current_expired_time_key = $course_code.'_'.$session_id.'_'.$exercise_id;
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if (isset($_SESSION['expired_time'][$current_expired_time_key])) { //Only for exercice of type "One page"
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$expired_date = $_SESSION['expired_time'][$current_expired_time_key];
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} else {
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$expired_date = '0000-00-00 00:00:00';
|
|
}
|
|
|
|
$sql = "INSERT INTO $TABLETRACK_EXERCICES ( exe_user_id, exe_cours_id,expired_time_control,exe_exo_id)
|
|
VALUES ( ".$user_id.", '".$_cid."' ,'".$expired_date."','".$exo_id."')";
|
|
$res = @Database::query($sql);
|
|
$id= Database::insert_id();
|
|
return $id;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Record an event for this attempt at answering an exercise
|
|
* @param float Score achieved
|
|
* @param string Answer given
|
|
* @param integer Question ID
|
|
* @param integer Exercise ID
|
|
* @param integer Position
|
|
* @return boolean Result of the insert query
|
|
*/
|
|
function exercise_attempt($score,$answer,$quesId,$exeId,$j)
|
|
{
|
|
$score = Database::escape_string($score);
|
|
$answer = Database::escape_string($answer);
|
|
$quesId = Database::escape_string($quesId);
|
|
$exeId = Database::escape_string($exeId);
|
|
$j = Database::escape_string($j);
|
|
|
|
global $_configuration, $_user, $_cid;
|
|
$TBL_TRACK_ATTEMPT = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
|
|
|
|
//Validation in case of fraud with actived control time
|
|
$course_code = api_get_course_id();
|
|
$session_id = api_get_session_id();
|
|
$current_expired_time_key = $course_code.'_'.$session_id.'_'.$exeId;
|
|
if (isset($_SESSION['expired_time'][$current_expired_time_key])) { //Only for exercice of type "One page"
|
|
$current_time = time();
|
|
$expired_date = $_SESSION['expired_time'][$current_expired_time_key];
|
|
$expired_time = strtotime($expired_date);
|
|
$total_time_allowed = $expired_time + 30;
|
|
if ($total_time_allowed < $current_time) {
|
|
$score = 0;
|
|
$answer = 0;
|
|
$j = 0;
|
|
}
|
|
}
|
|
// if tracking is disabled record nothing
|
|
if (!$_configuration['tracking_enabled'])
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
$reallyNow = time();
|
|
if (isset($_user['user_id']) && $_user['user_id']!='')
|
|
{
|
|
$user_id = "'".$_user['user_id']."'";
|
|
}
|
|
else // anonymous
|
|
{
|
|
$user_id = api_get_anonymous_id();
|
|
}
|
|
$_SESSION['current_exercice_attempt'][$user_id] = $exeId;
|
|
$sql = "INSERT INTO $TBL_TRACK_ATTEMPT
|
|
(
|
|
exe_id,
|
|
user_id,
|
|
question_id,
|
|
answer,
|
|
marks,
|
|
course_code,
|
|
position,
|
|
tms
|
|
)
|
|
VALUES
|
|
(
|
|
".$exeId.",
|
|
".$user_id.",
|
|
'".$quesId."',
|
|
'".addslashes($answer)."',
|
|
'".$score."',
|
|
'".$_cid."',
|
|
'".$j."',
|
|
FROM_UNIXTIME(".$reallyNow.")
|
|
)";
|
|
|
|
if(defined('ENABLED_LIVE_EXERCISE_TRACKING')){
|
|
$TBL_RECORDING = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
|
|
$recording_changes = 'INSERT INTO '.$TBL_RECORDING.' ' .
|
|
'(exe_id,
|
|
question_id,
|
|
marks,
|
|
insert_date,
|
|
author)
|
|
VALUES
|
|
('."'$exeId','".$quesId."','$score','".date('Y-m-d H:i:s')."',''".')';
|
|
Database::query($recording_changes);
|
|
}
|
|
if (!empty($quesId) && !empty($exeId) && !empty($user_id)) {
|
|
$res = Database::query($sql);
|
|
return $res;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
/**
|
|
* Record an hotspot spot for this attempt at answering an hotspot question
|
|
* @param int Exercise ID
|
|
* @param int Question ID
|
|
* @param int Answer ID
|
|
* @param int Whether this answer is correct (1) or not (0)
|
|
* @param string Coordinates of this point (e.g. 123;324)
|
|
* @return boolean Result of the insert query
|
|
* @uses Course code and user_id from global scope $_cid and $_user
|
|
*/
|
|
function exercise_attempt_hotspot($exe_id, $question_id, $answer_id, $correct, $coords)
|
|
{
|
|
global $_configuration, $_user, $_cid;
|
|
// if tracking is disabled record nothing
|
|
if (!$_configuration['tracking_enabled'])
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
//Validation in case of fraud with actived control time
|
|
|
|
$course_code = api_get_course_id();
|
|
$session_id = api_get_session_id();
|
|
$current_expired_time_key = $course_code.'_'.$session_id.'_'.$exe_id;
|
|
|
|
if (isset($_SESSION['expired_time'][$current_expired_time_key])) { //Only for exercice of type "One page"
|
|
$current_time = time();
|
|
$expired_date = $_SESSION['expired_time'][$current_expired_time_key];
|
|
$expired_time = strtotime($expired_date);
|
|
$total_time_allowed = $expired_time + 30;
|
|
if ($total_time_allowed < $current_time) {
|
|
$correct = 0;
|
|
}
|
|
}
|
|
|
|
$tbl_track_e_hotspot = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
|
|
$sql = "INSERT INTO $tbl_track_e_hotspot " .
|
|
"(hotspot_user_id, hotspot_course_code, hotspot_exe_id, hotspot_question_id, hotspot_answer_id, hotspot_correct, hotspot_coordinate)".
|
|
" VALUES ('" . Database :: escape_string($_user['user_id']) . "'," .
|
|
" '" . Database :: escape_string($_cid) . "', " .
|
|
" '" . Database :: escape_string($exe_id) . "', " .
|
|
" '" . Database :: escape_string($question_id) . "'," .
|
|
" '" . Database :: escape_string($answer_id) . "'," .
|
|
" '" . Database :: escape_string($correct) . "'," .
|
|
" '" . Database :: escape_string($coords) . "')";
|
|
return $result = Database::query($sql);
|
|
}
|
|
|
|
/**
|
|
* @author Yannick Warnier <yannick.warnier@dokeos.com>
|
|
* @desc Record information for common (or admin) events (in the track_e_default table)
|
|
* @param string Type of event
|
|
* @param string Type of value
|
|
* @param string Value
|
|
* @param string Timestamp (defaults to null)
|
|
* @param integer User ID (defaults to null)
|
|
* @param string Course code (defaults to null)
|
|
*/
|
|
function event_system($event_type, $event_value_type, $event_value, $timestamp = null, $user_id=null, $course_code=null)
|
|
{
|
|
global $_configuration;
|
|
global $_user;
|
|
global $TABLETRACK_DEFAULT;
|
|
|
|
$event_type = Database::escape_string($event_type);
|
|
$event_value_type = Database::escape_string($event_value_type);
|
|
$event_value = Database::escape_string($event_value);
|
|
$timestamp = Database::escape_string($timestamp);
|
|
$user_id = Database::escape_string($user_id);
|
|
$course_code = Database::escape_string($course_code);
|
|
|
|
|
|
// if tracking is disabled record nothing
|
|
if (!$_configuration['tracking_enabled'])
|
|
{
|
|
return 0;
|
|
}
|
|
if(!isset($timestamp))
|
|
{
|
|
$timestamp = time();
|
|
}
|
|
if(!isset($user_id))
|
|
{
|
|
$user_id = 0;
|
|
}
|
|
if(!isset($course_code))
|
|
{
|
|
$course_code = '';
|
|
}
|
|
|
|
$sql = "INSERT INTO $TABLETRACK_DEFAULT
|
|
(default_user_id,
|
|
default_cours_code,
|
|
default_date,
|
|
default_event_type,
|
|
default_value_type,
|
|
default_value
|
|
)
|
|
VALUES
|
|
('$user_id.',
|
|
'$course_code',
|
|
FROM_UNIXTIME($timestamp),
|
|
'$event_type',
|
|
'$event_value_type',
|
|
'$event_value')";
|
|
$res = Database::query($sql);
|
|
return true;
|
|
}
|
|
?>
|
|
|