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1377 lines
49 KiB
1377 lines
49 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This file contains additional dropbox functions. Initially there were some
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* functions in the init files also but I have moved them over
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* to one file -- Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @author Julio Montoya adding c_id support
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*/
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$this_section = SECTION_COURSES;
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$htmlHeadXtra[] = '<script>
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function setFocus(){
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$("#category_title").focus();
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}
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$(document).ready(function () {
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setFocus();
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});
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</script>';
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/**
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* This function is a wrapper function for the multiple actions feature.
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* @return Mixed If there is a problem, return a string message, otherwise nothing
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function handle_multiple_actions()
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{
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global $_user, $is_courseTutor;
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// STEP 1: are we performing the actions on the received or on the sent files?
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if ($_POST['action'] == 'delete_received' || $_POST['action'] == 'download_received') {
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$part = 'received';
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} elseif ($_POST['action'] == 'delete_sent' || $_POST['action'] == 'download_sent') {
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$part = 'sent';
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}
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// STEP 2: at least one file has to be selected. If not we return an error message
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$ids = Request::get('id', array());
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if (count($ids) > 0) {
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$checked_file_ids = $_POST['id'];
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} else {
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foreach ($_POST as $key => $value) {
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if (strstr($value, $part.'_') AND $key != 'view_received_category' AND $key != 'view_sent_category') {
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$checked_files = true;
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$checked_file_ids[] = intval(substr($value, strrpos($value, '_')));
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}
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}
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}
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$checked_file_ids = $_POST['id'];
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if (!is_array($checked_file_ids) || count($checked_file_ids) == 0) {
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return get_lang('CheckAtLeastOneFile');
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}
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// STEP 3A: deleting
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if ($_POST['action'] == 'delete_received' || $_POST['action'] == 'delete_sent') {
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$dropboxfile = new Dropbox_Person($_user['user_id'], api_is_course_admin(), $is_courseTutor);
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foreach ($checked_file_ids as $key => $value) {
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if ($_GET['view'] == 'received') {
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$dropboxfile->deleteReceivedWork($value);
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$message = get_lang('ReceivedFileDeleted');
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}
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if ($_GET['view'] == 'sent' OR empty($_GET['view'])) {
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$dropboxfile->deleteSentWork($value);
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$message = get_lang('SentFileDeleted');
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}
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}
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return $message;
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}
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// STEP 3B: giving comment
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if ($_POST['actions'] == 'comment') {
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// This has not been implemented.
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// The idea was that it would be possible to write the same feedback for the selected documents.
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}
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// STEP 3C: moving
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if (strstr($_POST['action'], 'move_')) {
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// check move_received_n or move_sent_n command
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if (strstr($_POST['action'], 'received')) {
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$part = 'received';
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$to_cat_id = str_replace('move_received_', '', $_POST['action']);
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} else {
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$part = 'sent';
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$to_cat_id = str_replace('move_sent_', '', $_POST['action']);
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}
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foreach ($checked_file_ids as $key => $value) {
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store_move($value, $to_cat_id, $part);
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}
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return get_lang('FilesMoved');
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}
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// STEP 3D: downloading
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if ($_POST['action'] == 'download_sent' || $_POST['action'] == 'download_received') {
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zip_download($checked_file_ids);
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}
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}
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/**
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* This function deletes a dropbox category
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*
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* @todo give the user the possibility what needs to be done with the files in this category: move them to the root, download them as a zip, delete them
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function delete_category($action, $id, $user_id = null)
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{
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$course_id = api_get_course_int_id();
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global $dropbox_cnf;
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global $is_courseTutor;
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if (empty($user_id)) {
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$user_id = api_get_user_id();
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}
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$cat = get_dropbox_category($id);
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if (count($cat) == 0) {
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return false;
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}
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if ($cat['user_id'] != $user_id && !api_is_platform_admin($user_id)) {
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return false;
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}
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// an additional check that might not be necessary
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if ($action == 'deletereceivedcategory') {
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$sentreceived = 'received';
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$entries_table = $dropbox_cnf['tbl_post'];
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$id_field = 'file_id';
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$return_message = get_lang('ReceivedCatgoryDeleted');
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} elseif ($action == 'deletesentcategory') {
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$sentreceived = 'sent';
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$entries_table = $dropbox_cnf['tbl_file'];
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$id_field = 'id';
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$return_message = get_lang('SentCatgoryDeleted');
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} else {
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return get_lang('Error');
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}
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// step 1: delete the category
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$sql = "DELETE FROM ".$dropbox_cnf['tbl_category']." WHERE c_id = $course_id AND cat_id='".intval(
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$id
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)."' AND $sentreceived='1'";
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$result = Database::query($sql);
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// step 2: delete all the documents in this category
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$sql = "SELECT * FROM ".$entries_table." WHERE c_id = $course_id AND cat_id='".intval($id)."'";
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$result = Database::query($sql);
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while ($row = Database::fetch_array($result)) {
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$dropboxfile = new Dropbox_Person($_user['user_id'], api_is_course_admin(), $is_courseTutor);
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if ($action == 'deletereceivedcategory') {
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$dropboxfile->deleteReceivedWork($row[$id_field]);
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}
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if ($action == 'deletesentcategory') {
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$dropboxfile->deleteSentWork($row[$id_field]);
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}
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}
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return $return_message;
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}
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/**
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* Displays the form to move one individual file to a category
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*
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* @return html code of the form that appears in a message box.
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*
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* @author Julio Montoya - function rewritten
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*/
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function display_move_form($part, $id, $target = array(), $extra_params = array())
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{
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$form = new FormValidator('form1', 'post', api_get_self().'?view_received_category='.Security::remove_XSS(
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$_GET['view_received_category']
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).'&view_sent_category='.Security::remove_XSS($_GET['view_sent_category']).'&view='.Security::remove_XSS(
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$_GET['view']
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).'&'.$extra_params);
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$form->addElement('header', get_lang('MoveFileTo'));
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$form->addElement('hidden', 'id', intval($id));
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$form->addElement('hidden', 'part', Security::remove_XSS($part));
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$options = array('0' => get_lang('Root'));
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foreach ($target as $category) {
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$options[$category['cat_id']] = $category['cat_name'];
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}
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$form->addElement('select', 'move_target', get_lang('MoveFileTo'), $options);
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$form->addElement('button', 'do_move', get_lang('MoveFile'));
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$form->display();
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}
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/**
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* This function moves a file to a different category
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*
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* @param $id the id of the file we are moving
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* @param $target the id of the folder we are moving to
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* @param $part are we moving a received file or a sent file?
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*
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* @return language string
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function store_move($id, $target, $part)
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{
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global $_user, $dropbox_cnf;
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$course_id = api_get_course_int_id();
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if ((isset($id) AND $id != '') AND (isset($target) AND $target != '') AND (isset($part) AND $part != '')) {
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if ($part == 'received') {
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$sql = "UPDATE ".$dropbox_cnf["tbl_post"]." SET cat_id='".Database::escape_string($target)."'
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WHERE c_id = $course_id AND dest_user_id='".Database::escape_string($_user['user_id'])."'
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AND file_id='".Database::escape_string($id)."'";
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Database::query($sql);
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$return_message = get_lang('ReceivedFileMoved');
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}
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if ($part == 'sent') {
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$sql = "UPDATE ".$dropbox_cnf["tbl_file"]." SET cat_id='".Database::escape_string($target)."'
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WHERE c_id = $course_id AND uploader_id='".Database::escape_string($_user['user_id'])."'
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AND id='".Database::escape_string($id)."'";
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Database::query($sql);
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$return_message = get_lang('SentFileMoved');
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}
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} else {
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$return_message = get_lang('NotMovedError');
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}
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return $return_message;
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}
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/**
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* This functions displays all teh possible actions that can be performed on multiple files. This is the dropdown list that
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* appears below the sortable table of the sent / or received files.
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*
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* @return html value for the dropdown list
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_action_options($part, $categories, $current_category = 0)
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{
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echo '<select name="actions">';
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echo '<option value="download">'.get_lang('Download').'</option>';
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echo '<option value="delete">'.get_lang('Delete').'</option>';
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if (is_array($categories)) {
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echo '<optgroup label="'.get_lang('MoveTo').'">';
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if ($current_category != 0) {
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echo '<option value="move_0">'.get_lang('Root').'</a>';
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}
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foreach ($categories as $key => $value) {
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if ($current_category != $value['cat_id']) {
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echo '<option value="move_'.$value['cat_id'].'">'.$value['cat_name'].'</option>';
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}
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}
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echo '</optgroup>';
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}
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echo '</select>';
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echo '<input type="submit" name="do_actions_'.Security::remove_XSS($part).'" value="'.get_lang('Ok').'" />';
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}
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/**
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* this function returns the html code that displays the checkboxes next to the files so that
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* multiple actions on one file are possible.
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*
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* @param $id the unique id of the file
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* @param $part are we dealing with a sent or with a received file?
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*
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* @return html code
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function display_file_checkbox($id, $part)
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{
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if (isset($_GET['selectall'])) {
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$checked = 'checked';
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}
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$return_value = '<input type="checkbox" name="'.Security::remove_XSS($part).'_'.Security::remove_XSS(
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$id
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).'" value="'.Security::remove_XSS($id).'" '.$checked.' />';
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return $return_value;
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}
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/**
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* This function retrieves all dropbox categories and returns them as an array
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*
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* @param $filter default '', when we need only the categories of the sent or the received part.
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*
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* @return array
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function get_dropbox_categories($filter = '')
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{
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$course_id = api_get_course_int_id();
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global $_user;
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global $dropbox_cnf;
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$return_array = array();
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$session_id = api_get_session_id();
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$condition_session = api_get_session_condition($session_id);
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$sql = "SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE c_id = $course_id AND user_id='".$_user['user_id']."' $condition_session";
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$result = Database::query($sql);
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while ($row = Database::fetch_array($result)) {
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if (($filter == 'sent' AND $row['sent'] == 1) OR ($filter == 'received' AND $row['received'] == 1) OR $filter == '') {
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$return_array[$row['cat_id']] = $row;
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}
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}
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return $return_array;
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}
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/**
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* Get a dropbox category details
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* @param int The category ID
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* @return array The details of this category
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*/
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function get_dropbox_category($id)
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{
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global $dropbox_cnf;
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$course_id = api_get_course_int_id();
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if (empty($id) or $id != intval($id)) {
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return array();
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}
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$sql = "SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE c_id = $course_id AND cat_id='".$id."'";
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$res = Database::query($sql);
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if ($res === false) {
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return array();
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}
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$row = Database::fetch_assoc($res);
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return $row;
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}
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/**
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* This functions stores a new dropboxcategory
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*
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* @var it might not seem very elegant if you create a category in sent and in received with the same name that you get two entries in the
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* dropbox_category table but it is the easiest solution. You get
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* cat_name | received | sent | user_id
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* test | 1 | 0 | 237
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* test | 0 | 1 | 237
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* more elegant would be
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* test | 1 | 1 | 237
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @version march 2006
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*/
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function store_addcategory()
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{
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$course_id = api_get_course_int_id();
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global $_user;
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global $dropbox_cnf;
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// check if the target is valid
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if ($_POST['target'] == 'sent') {
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$sent = 1;
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$received = 0;
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} elseif ($_POST['target'] == 'received') {
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$sent = 0;
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$received = 1;
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} else {
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return get_lang('Error');
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}
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// check if the category name is valid
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if ($_POST['category_name'] == '') {
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return array('type' => 'error', 'message' => get_lang('ErrorPleaseGiveCategoryName'));
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}
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if (!$_POST['edit_id']) {
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$session_id = api_get_session_id();
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// step 3a, we check if the category doesn't already exist
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$sql = "SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE c_id = $course_id AND user_id='".$_user['user_id']."' AND cat_name='".Database::escape_string(
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$_POST['category_name']
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)."' AND received='".$received."' AND sent='$sent' AND session_id='$session_id'";
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$result = Database::query($sql);
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// step 3b, we add the category if it does not exist yet.
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if (Database::num_rows($result) == 0) {
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$sql = "INSERT INTO ".$dropbox_cnf['tbl_category']." (c_id, cat_name, received, sent, user_id, session_id)
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VALUES ($course_id, '".Database::escape_string(
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$_POST['category_name']
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)."', '".Database::escape_string($received)."', '".Database::escape_string(
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$sent
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)."', '".Database::escape_string($_user['user_id'])."',$session_id)";
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Database::query($sql);
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return array('type' => 'confirmation', 'message' => get_lang('CategoryStored'));
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} else {
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return array('type' => 'error', 'message' => get_lang('CategoryAlreadyExistsEditIt'));
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}
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} else {
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$sql = "UPDATE ".$dropbox_cnf['tbl_category']." SET cat_name='".Database::escape_string(
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$_POST['category_name']
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)."', received='".Database::escape_string($received)."' , sent='".Database::escape_string($sent)."'
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WHERE c_id = $course_id AND user_id='".Database::escape_string($_user['user_id'])."'
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AND cat_id='".Database::escape_string($_POST['edit_id'])."'";
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Database::query($sql);
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return array('type' => 'confirmation', 'message' => get_lang('CategoryModified'));
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}
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}
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/**
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* This function displays the form to add a new category.
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*
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* @param $category_name this parameter is the name of the category (used when no section is selected)
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* @param $id this is the id of the category we are editing.
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*
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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@author Julio Montoya UI changes
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*
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* @version march 2006
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*/
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function display_addcategory_form($category_name = '', $id = '', $action)
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{
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global $dropbox_cnf;
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$course_id = api_get_course_int_id();
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$title = get_lang('AddNewCategory');
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if (isset($id) AND $id != '') {
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// retrieve the category we are editing
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$sql = "SELECT * FROM ".$dropbox_cnf['tbl_category']." WHERE c_id = $course_id AND cat_id='".Database::escape_string(
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$id
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)."'";
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$result = Database::query($sql);
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$row = Database::fetch_array($result);
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if (empty($category_name)) { // after an edit with an error we do not want to return to the original name but the name we already modified. (happens when createinrecievedfiles AND createinsentfiles are not checked)
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$category_name = $row['cat_name'];
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}
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if ($row['received'] == '1') {
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$target = 'received';
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}
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if ($row['sent'] == '1') {
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$target = 'sent';
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}
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$title = get_lang('EditCategory');
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}
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if ($action == 'addreceivedcategory') {
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$target = 'received';
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}
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if ($action == 'addsentcategory') {
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$target = 'sent';
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}
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if ($action == 'editcategory') {
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$text = get_lang('ModifyCategory');
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$class = 'save';
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} elseif ($action == 'addreceivedcategory' or $action == 'addsentcategory') {
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$text = get_lang('CreateCategory');
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$class = 'add';
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}
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$form = new FormValidator('add_new_category', 'post', api_get_self().'?view="'.Security::remove_XSS($_GET['view']));
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$form->addElement('header', $title);
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if (isset($id) AND $id != '') {
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$form->addElement('hidden', 'edit_id', intval($id));
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}
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$form->addElement('hidden', 'action', Security::remove_XSS($action));
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$form->addElement('hidden', 'target', Security::remove_XSS($target));
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$form->addElement('text', 'category_name', get_lang('CategoryName'));
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$form->addRule('category_name', get_lang('ThisFieldIsRequired'), 'required');
|
|
$form->addElement('button', 'StoreCategory', $text);
|
|
|
|
$defaults = array();
|
|
$defaults['category_name'] = $category_name;
|
|
$form->setDefaults($defaults);
|
|
$form->display();
|
|
}
|
|
|
|
/**
|
|
* this function displays the form to upload a new item to the dropbox.
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function display_add_form()
|
|
{
|
|
global $_user, $is_courseTutor, $course_info, $origin, $dropbox_unid;
|
|
|
|
$token = Security::get_token();
|
|
$dropbox_person = new Dropbox_Person(api_get_user_id(), api_is_course_admin(), $is_courseTutor);
|
|
?>
|
|
<form method="post" action="index.php?view_received_category=<?php echo Security::remove_XSS(
|
|
$_GET['view_received_category']
|
|
); ?>&view_sent_category=<?php echo Security::remove_XSS(
|
|
$_GET['view_sent_category']
|
|
); ?>&view=<?php echo Security::remove_XSS($_GET['view']); ?>&<?php echo "origin=$origin"."&".api_get_cidreq(); ?>"
|
|
enctype="multipart/form-data" onsubmit="javascript: return checkForm(this);">
|
|
<legend><?php echo get_lang('UploadNewFile'); ?></legend>
|
|
|
|
<div class="control-group">
|
|
<label>
|
|
<span class="form_required">*</span><?php echo get_lang('UploadFile'); ?>:
|
|
</label>
|
|
|
|
<div class="controls">
|
|
<input type="hidden" name="MAX_FILE_SIZE" value='<?php echo dropbox_cnf('maxFilesize'); ?>'/>
|
|
<input type="file" name="file" size="20" <?php if (dropbox_cnf(
|
|
'allowOverwrite'
|
|
)
|
|
) {
|
|
echo 'onChange="javascript: checkfile(this.value);"';
|
|
} ?> />
|
|
<input type="hidden" name="dropbox_unid" value="<?php echo $dropbox_unid; ?>"/>
|
|
<input type="hidden" name="sec_token" value="<?php echo $token; ?>"/>
|
|
<?php
|
|
if ($origin == 'learnpath') {
|
|
echo '<input type="hidden" name="origin" value="learnpath" />';
|
|
}
|
|
?>
|
|
</div>
|
|
</div>
|
|
|
|
<?php
|
|
if (dropbox_cnf('allowOverwrite')) {
|
|
?>
|
|
<div class="control-group">
|
|
<div class="controls">
|
|
<label class="checkbox">
|
|
<input type="checkbox" name="cb_overwrite" id="cb_overwrite" value="true"/>
|
|
<?php echo get_lang('OverwriteFile'); ?>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
<?php
|
|
}
|
|
?>
|
|
|
|
<div class="control-group">
|
|
<label class="control-label">
|
|
<?php echo get_lang('SendTo'); ?>
|
|
</label>
|
|
|
|
<div class="controls">
|
|
<?php
|
|
|
|
//list of all users in this course and all virtual courses combined with it
|
|
if (api_get_session_id()) {
|
|
$complete_user_list_for_dropbox = array();
|
|
if (api_get_setting('dropbox_allow_student_to_student') == 'true' || $_user['status'] != STUDENT) {
|
|
$complete_user_list_for_dropbox = CourseManager :: get_user_list_from_course_code(
|
|
$course_info['code'],
|
|
api_get_session_id()
|
|
);
|
|
}
|
|
$complete_user_list2 = CourseManager::get_coach_list_from_course_code(
|
|
$course_info['real_id'],
|
|
api_get_session_id()
|
|
);
|
|
$complete_user_list_for_dropbox = array_merge($complete_user_list_for_dropbox, $complete_user_list2);
|
|
} else {
|
|
if (api_get_setting('dropbox_allow_student_to_student') == 'true' || $_user['status'] != STUDENT) {
|
|
$complete_user_list_for_dropbox = CourseManager :: get_user_list_from_course_code(
|
|
$course_info['code'],
|
|
api_get_session_id()
|
|
);
|
|
} else {
|
|
$complete_user_list_for_dropbox = CourseManager :: get_teacher_list_from_course_code($course_info['real_id'], false);
|
|
}
|
|
}
|
|
|
|
if (!empty($complete_user_list_for_dropbox)) {
|
|
foreach ($complete_user_list_for_dropbox as $k => $e) {
|
|
$complete_user_list_for_dropbox[$k] = $e + array(
|
|
'lastcommafirst' => api_get_person_name(
|
|
$e['firstname'],
|
|
$e['lastname']
|
|
)
|
|
);
|
|
}
|
|
$complete_user_list_for_dropbox = TableSort::sort_table($complete_user_list_for_dropbox, 'lastcommafirst');
|
|
}
|
|
|
|
echo '<select name="recipients[]" size="10" multiple class="span4">';
|
|
/*
|
|
Create the options inside the select box:
|
|
List all selected users their user id as value and a name string as display
|
|
*/
|
|
|
|
$current_user_id = '';
|
|
foreach ($complete_user_list_for_dropbox as $current_user) {
|
|
if (($dropbox_person->isCourseTutor
|
|
|| $dropbox_person->isCourseAdmin
|
|
|| dropbox_cnf('allowStudentToStudent')
|
|
|| $current_user['status'] != 5 // Always allow teachers.
|
|
|| $current_user['tutor_id'] == 1 // Always allow tutors.
|
|
) && $current_user['user_id'] != $_user['user_id']
|
|
) { // Don't include yourself.
|
|
if ($current_user['user_id'] == $current_user_id) {
|
|
continue;
|
|
}
|
|
$full_name = $current_user['lastcommafirst'];
|
|
$current_user_id = $current_user['user_id'];
|
|
echo '<option value="user_'.$current_user_id.'">'.$full_name.'</option>';
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Show groups
|
|
*/
|
|
if (($dropbox_person->isCourseTutor || $dropbox_person->isCourseAdmin)
|
|
&& dropbox_cnf('allowGroup') || dropbox_cnf('allowStudentToStudent')
|
|
) {
|
|
$complete_group_list_for_dropbox = GroupManager::get_group_list(null, dropbox_cnf('courseId'));
|
|
|
|
if (count($complete_group_list_for_dropbox) > 0) {
|
|
foreach ($complete_group_list_for_dropbox as $current_group) {
|
|
if ($current_group['number_of_members'] > 0) {
|
|
echo '<option value="group_'.$current_group['id'].'">G: '.$current_group['name'].' - '.$current_group['number_of_members'].' '.get_lang(
|
|
'Users'
|
|
).'</option>';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (($dropbox_person->isCourseTutor || $dropbox_person->isCourseAdmin) && dropbox_cnf('allowMailing')) {
|
|
// echo '<option value="mailing">'.get_lang('MailingInSelect').'</option>';
|
|
}
|
|
|
|
if (dropbox_cnf('allowJustUpload')) {
|
|
//echo '<option value="upload">'.get_lang('JustUploadInSelect').'</option>';
|
|
echo '<option value="user_'.$_user['user_id'].'">'.get_lang('JustUploadInSelect').'</option>';
|
|
}
|
|
|
|
echo '</select>
|
|
</div>
|
|
</div>';
|
|
|
|
echo '
|
|
<div class="control-group">
|
|
<div class="controls">
|
|
<button type="Submit" class="upload" name="submitWork">'.get_lang('Upload', '').'</button>
|
|
</div>
|
|
</div>
|
|
';
|
|
|
|
echo '</form>';
|
|
}
|
|
|
|
/**
|
|
* returns username or false if user isn't registered anymore
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
*/
|
|
function getUserNameFromId($id)
|
|
{
|
|
global $dropbox_cnf;
|
|
|
|
$mailingId = $id - dropbox_cnf('mailingIdBase');
|
|
if ($mailingId > 0) {
|
|
return get_lang('MailingAsUsername', '').$mailingId;
|
|
}
|
|
$id = intval($id);
|
|
$sql = "SELECT ".(api_is_western_name_order(
|
|
) ? "CONCAT(firstname,' ', lastname)" : "CONCAT(lastname,' ', firstname)")." AS name
|
|
FROM ".$dropbox_cnf['tbl_user']."
|
|
WHERE user_id='$id'";
|
|
$result = Database::query($sql);
|
|
$res = Database::fetch_array($result);
|
|
|
|
if (!$res) {
|
|
return false;
|
|
}
|
|
|
|
return stripslashes($res['name']);
|
|
}
|
|
|
|
/**
|
|
* returns loginname or false if user isn't registered anymore
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
*/
|
|
function getLoginFromId($id)
|
|
{
|
|
$id = intval($id);
|
|
$sql = "SELECT username
|
|
FROM ".dropbox_cnf('tbl_user')."
|
|
WHERE user_id='$id'";
|
|
$result = Database::query($sql);
|
|
$res = Database::fetch_array($result);
|
|
if (!$res) {
|
|
return false;
|
|
}
|
|
|
|
return stripslashes($res['username']);
|
|
}
|
|
|
|
/**
|
|
* @return boolean indicating if user with user_id=$user_id is a course member
|
|
* @todo eliminate global
|
|
* @todo check if this function is still necessary. There might be a library function for this.
|
|
*/
|
|
function isCourseMember($user_id)
|
|
{
|
|
$is_course_member = CourseManager::is_user_subscribed_in_course($user_id, api_get_course_int_id(), true);
|
|
return $is_course_member;
|
|
}
|
|
|
|
/**
|
|
* Checks if there are files in the dropbox_file table that aren't used anymore in dropbox_person table.
|
|
* If there are, all entries concerning the file are deleted from the db + the file is deleted from the server
|
|
*/
|
|
function removeUnusedFiles()
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
|
|
// select all files that aren't referenced anymore
|
|
$sql = "SELECT DISTINCT f.id, f.filename
|
|
FROM ".dropbox_cnf('tbl_file')." f
|
|
LEFT JOIN ".dropbox_cnf('tbl_person')." p
|
|
ON (f.id = p.file_id)
|
|
WHERE p.user_id IS NULL AND
|
|
f.c_id = $course_id
|
|
";
|
|
$result = Database::query($sql);
|
|
while ($res = Database::fetch_array($result)) {
|
|
|
|
//delete the selected files from the post and file tables
|
|
$sql = "DELETE FROM ".dropbox_cnf('tbl_post')." WHERE c_id = $course_id AND file_id = '".$res['id']."'";
|
|
Database::query($sql);
|
|
$sql = "DELETE FROM ".dropbox_cnf('tbl_file')." WHERE c_id = $course_id AND id ='".$res['id']."'";
|
|
Database::query($sql);
|
|
|
|
//delete file from server
|
|
@unlink(dropbox_cnf('sysPath').'/'.$res['filename']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* Mailing zip-file is posted to (dest_user_id = ) mailing pseudo_id
|
|
* and is only visible to its uploader (user_id).
|
|
*
|
|
* Mailing content files have uploader_id == mailing pseudo_id, a normal recipient,
|
|
* and are visible initially to recipient and pseudo_id.
|
|
*
|
|
* @author René Haentjens, Ghent University
|
|
*
|
|
* @todo check if this function is still necessary.
|
|
*/
|
|
function getUserOwningThisMailing($mailingPseudoId, $owner = 0, $or_die = '')
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
|
|
global $dropbox_cnf;
|
|
$mailingPseudoId = intval($mailingPseudoId);
|
|
$sql = "SELECT f.uploader_id
|
|
FROM ".$dropbox_cnf['tbl_file']." f
|
|
LEFT JOIN ".$dropbox_cnf['tbl_post']." p ON (f.id = p.file_id AND f.c_id = $course_id AND p.c_id = $course_id)
|
|
WHERE
|
|
p.dest_user_id = '".$mailingPseudoId."' AND
|
|
p.c_id = $course_id
|
|
";
|
|
$result = Database::query($sql);
|
|
|
|
if (!($res = Database::fetch_array($result))) {
|
|
die(get_lang('GeneralError').' (code 901)');
|
|
}
|
|
if ($owner == 0) {
|
|
return $res['uploader_id'];
|
|
}
|
|
if ($res['uploader_id'] == $owner) {
|
|
return true;
|
|
}
|
|
die(get_lang('GeneralError').' (code '.$or_die.')');
|
|
}
|
|
|
|
/**
|
|
* @author René Haentjens, Ghent University
|
|
* @todo check if this function is still necessary.
|
|
*/
|
|
function removeMoreIfMailing($file_id)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
global $dropbox_cnf;
|
|
// when deleting a mailing zip-file (posted to mailingPseudoId):
|
|
// 1. the detail window is no longer reachable, so
|
|
// for all content files, delete mailingPseudoId from person-table
|
|
// 2. finding the owner (getUserOwningThisMailing) is no longer possible, so
|
|
// for all content files, replace mailingPseudoId by owner as uploader
|
|
$file_id = intval($file_id);
|
|
$sql = "SELECT p.dest_user_id
|
|
FROM ".$dropbox_cnf['tbl_post']." p
|
|
WHERE c_id = $course_id AND p.file_id = '".$file_id."'";
|
|
$result = Database::query($sql);
|
|
|
|
if ($res = Database::fetch_array($result)) {
|
|
$mailingPseudoId = $res['dest_user_id'];
|
|
if ($mailingPseudoId > dropbox_cnf('mailingIdBase')) {
|
|
$sql = "DELETE FROM ".dropbox_cnf(
|
|
'tbl_person'
|
|
)." WHERE c_id = $course_id AND user_id='".$mailingPseudoId."'";
|
|
Database::query($sql);
|
|
|
|
$sql = "UPDATE ".dropbox_cnf('tbl_file').
|
|
" SET uploader_id='".api_get_user_id(
|
|
)."' WHERE c_id = $course_id AND uploader_id='".$mailingPseudoId."'";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Function that finds a given config setting
|
|
*
|
|
* @author René Haentjens, Ghent University
|
|
*/
|
|
function dropbox_cnf($variable)
|
|
{
|
|
return $GLOBALS['dropbox_cnf'][$variable];
|
|
}
|
|
|
|
function store_add_dropbox()
|
|
{
|
|
global $dropbox_cnf;
|
|
global $_user;
|
|
$_course = api_get_course_info();
|
|
|
|
// Validating the form data
|
|
|
|
// there are no recipients selected
|
|
if (!isset($_POST['recipients']) || count($_POST['recipients']) <= 0) {
|
|
return get_lang('YouMustSelectAtLeastOneDestinee');
|
|
} // Check if all the recipients are valid
|
|
else {
|
|
$thisIsAMailing = false;
|
|
$thisIsJustUpload = false;
|
|
foreach ($_POST['recipients'] as $rec) {
|
|
if ($rec == 'mailing') {
|
|
$thisIsAMailing = true;
|
|
} elseif ($rec == 'upload') {
|
|
$thisIsJustUpload = true;
|
|
} elseif (strpos($rec, 'user_') === 0 && !isCourseMember(substr($rec, strlen('user_')))) {
|
|
return get_lang('InvalideUserDetected');
|
|
} elseif (strpos($rec, 'group_') !== 0 && strpos($rec, 'user_') !== 0) {
|
|
return get_lang('InvalideGroupDetected');
|
|
}
|
|
}
|
|
}
|
|
|
|
// we are doing a mailing but an additional recipient is selected
|
|
if ($thisIsAMailing && (count($_POST['recipients']) != 1)) {
|
|
return get_lang('MailingSelectNoOther');
|
|
}
|
|
|
|
// we are doing a just upload but an additional recipient is selected.
|
|
// note: why can't this be valid? It is like sending a document to yourself AND to a different person (I do this quite often with my e-mails)
|
|
if ($thisIsJustUpload && (count($_POST['recipients']) != 1)) {
|
|
return get_lang('MailingJustUploadSelectNoOther');
|
|
}
|
|
|
|
if (empty($_FILES['file']['name'])) {
|
|
$error = true;
|
|
|
|
return get_lang('NoFileSpecified');
|
|
}
|
|
|
|
|
|
// are we overwriting a previous file or sending a new one
|
|
|
|
$dropbox_overwrite = false;
|
|
if (isset($_POST['cb_overwrite']) && $_POST['cb_overwrite']) {
|
|
$dropbox_overwrite = true;
|
|
}
|
|
|
|
// doing the upload
|
|
|
|
$dropbox_filename = $_FILES['file']['name'];
|
|
$dropbox_filesize = $_FILES['file']['size'];
|
|
$dropbox_filetype = $_FILES['file']['type'];
|
|
$dropbox_filetmpname = $_FILES['file']['tmp_name'];
|
|
|
|
// check if the filesize does not exceed the allowed size.
|
|
if ($dropbox_filesize <= 0 || $dropbox_filesize > $dropbox_cnf['maxFilesize']) {
|
|
return get_lang(
|
|
'DropboxFileTooBig'
|
|
); // TODO: The "too big" message does not fit in the case of uploading zero-sized file.
|
|
}
|
|
|
|
// check if the file is actually uploaded
|
|
if (!is_uploaded_file($dropbox_filetmpname)) { // check user fraud : no clean error msg.
|
|
return get_lang('TheFileIsNotUploaded');
|
|
}
|
|
|
|
$upload_ok = FileManager::process_uploaded_file($_FILES['file'], true);
|
|
|
|
if (!$upload_ok) {
|
|
return null;
|
|
}
|
|
|
|
// Try to add an extension to the file if it hasn't got one
|
|
$dropbox_filename = FileManager::add_ext_on_mime($dropbox_filename, $dropbox_filetype);
|
|
// Replace dangerous characters
|
|
$dropbox_filename = replace_dangerous_char($dropbox_filename);
|
|
// Transform any .php file in .phps fo security
|
|
$dropbox_filename = FileManager::php2phps($dropbox_filename);
|
|
|
|
//filter extension
|
|
if (!FileManager::filter_extension($dropbox_filename)) {
|
|
return get_lang('UplUnableToSaveFileFilteredExtension');
|
|
}
|
|
|
|
// set title
|
|
$dropbox_title = $dropbox_filename;
|
|
// set author
|
|
if ($_POST['authors'] == '') {
|
|
$_POST['authors'] = getUserNameFromId($_user['user_id']);
|
|
}
|
|
|
|
// note: I think we could better migrate everything from here on to separate functions: store_new_dropbox, store_new_mailing, store_just_upload
|
|
|
|
if ($dropbox_overwrite) {
|
|
$dropbox_person = new Dropbox_Person($_user['user_id'], api_is_course_admin(), api_is_course_tutor());
|
|
|
|
foreach ($dropbox_person->sentWork as $w) {
|
|
if ($w->title == $dropbox_filename) {
|
|
if (($w->recipients[0]['id'] > dropbox_cnf('mailingIdBase')) xor $thisIsAMailing) {
|
|
return get_lang('MailingNonMailingError');
|
|
}
|
|
if (($w->recipients[0]['id'] == $_user['user_id']) xor $thisIsJustUpload) {
|
|
return get_lang('MailingJustUploadSelectNoOther');
|
|
}
|
|
$dropbox_filename = $w->filename;
|
|
$found = true; // note: do we still need this?
|
|
break;
|
|
}
|
|
}
|
|
} else { // rename file to login_filename_uniqueId format
|
|
$dropbox_filename = getLoginFromId($_user['user_id'])."_".$dropbox_filename."_".uniqid('');
|
|
}
|
|
|
|
// creating the array that contains all the users who will receive the file
|
|
$new_work_recipients = array();
|
|
foreach ($_POST['recipients'] as $rec) {
|
|
if (strpos($rec, 'user_') === 0) {
|
|
$new_work_recipients[] = substr($rec, strlen('user_'));
|
|
} elseif (strpos($rec, 'group_') === 0) {
|
|
$userList = GroupManager::get_subscribed_users(substr($rec, strlen('group_')));
|
|
foreach ($userList as $usr) {
|
|
if (!in_array($usr['user_id'], $new_work_recipients) && $usr['user_id'] != $_user['user_id']) {
|
|
$new_work_recipients[] = $usr['user_id'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@move_uploaded_file($dropbox_filetmpname, dropbox_cnf('sysPath').'/'.$dropbox_filename);
|
|
|
|
$b_send_mail = api_get_course_setting('email_alert_on_new_doc_dropbox');
|
|
|
|
if ($b_send_mail) {
|
|
foreach ($new_work_recipients as $recipient_id) {
|
|
$recipent_temp = UserManager :: get_user_info_by_id($recipient_id);
|
|
api_mail_html(
|
|
api_get_person_name(
|
|
$recipent_temp['firstname'].' '.$recipent_temp['lastname'],
|
|
null,
|
|
PERSON_NAME_EMAIL_ADDRESS
|
|
),
|
|
$recipent_temp['email'],
|
|
get_lang('NewDropboxFileUploaded'),
|
|
get_lang('NewDropboxFileUploadedContent').' '.api_get_path(
|
|
WEB_CODE_PATH
|
|
).'dropbox/index.php?cidReq='.$_course['sysCode']."\n\n".api_get_person_name(
|
|
$_user['firstName'],
|
|
$_user['lastName'],
|
|
null,
|
|
PERSON_NAME_EMAIL_ADDRESS
|
|
)."\n".get_lang('Email')." : ".$_user['mail'],
|
|
api_get_person_name($_user['firstName'], $_user['lastName'], null, PERSON_NAME_EMAIL_ADDRESS),
|
|
$_user['mail']
|
|
);
|
|
}
|
|
}
|
|
|
|
new Dropbox_SentWork($_user['user_id'], $dropbox_title, $_POST['description'], strip_tags(
|
|
$_POST['authors']
|
|
), $dropbox_filename, $dropbox_filesize, $new_work_recipients);
|
|
|
|
Security::clear_token();
|
|
|
|
return get_lang('FileUploadSucces');
|
|
}
|
|
|
|
|
|
/**
|
|
* This function displays the firstname and lastname of the user as a link to the user tool.
|
|
*
|
|
* @see this is the same function as in the new forum, so this probably has to move to a user library.
|
|
*
|
|
* @todo move this function to the user library (there is a duplicate in work.lib.php)
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function display_user_link_work($user_id, $name = '')
|
|
{
|
|
if ($user_id != 0) {
|
|
if (empty($name)) {
|
|
$table_user = Database::get_main_table(TABLE_MAIN_USER);
|
|
$sql = "SELECT * FROM $table_user WHERE user_id='".Database::escape_string($user_id)."'";
|
|
$result = Database::query($sql);
|
|
$row = Database::fetch_array($result);
|
|
|
|
return '<a href="../user/userInfo.php?uInfo='.$row['user_id'].'">'.api_get_person_name(
|
|
$row['firstname'],
|
|
$row['lastname']
|
|
).'</a>';
|
|
} else {
|
|
$user_id = intval($user_id);
|
|
|
|
return '<a href="../user/userInfo.php?uInfo='.$user_id.'">'.Security::remove_XSS($name).'</a>';
|
|
}
|
|
} else {
|
|
return $name.' ('.get_lang('Anonymous').')';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* this function transforms the array containing all the feedback into something visually attractive.
|
|
*
|
|
* @param an array containing all the feedback about the given message.
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function feedback($array)
|
|
{
|
|
foreach ($array as $key => $value) {
|
|
$output .= format_feedback($value);
|
|
}
|
|
$output .= feedback_form();
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* This function returns the html code to display the feedback messages on a given dropbox file
|
|
* @param $feedback_array an array that contains all the feedback messages about the given document.
|
|
* @return html code
|
|
* @todo add the form for adding new comment (if the other party has not deleted it yet).
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function format_feedback($feedback)
|
|
{
|
|
$output .= display_user_link_work($feedback['author_user_id']);
|
|
$output .= ' '.api_convert_and_format_date($feedback['feedback_date'], DATE_TIME_FORMAT_LONG).'<br />';
|
|
$output .= '<div style="padding-top:6px">'.nl2br($feedback['feedback']).'</div><hr size="1" noshade/><br />';
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* this function returns the code for the form for adding a new feedback message to a dropbox file.
|
|
* @return html code
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function feedback_form()
|
|
{
|
|
$return = get_lang('AddNewFeedback').'<br />';
|
|
$number_users_who_see_file = check_if_file_exist($_GET['id']);
|
|
if ($number_users_who_see_file) {
|
|
$token = Security::get_token();
|
|
$return .= '<textarea name="feedback" style="width: 80%; height: 80px;"></textarea>';
|
|
$return .= '<input type="hidden" name="sec_token" value="'.$token.'"/>';
|
|
$return .= '<br /><button type="submit" class="add" name="store_feedback" value="'.get_lang('Ok').'"
|
|
onclick="javascript: document.form_dropbox.attributes.action.value = document.location;">'.get_lang(
|
|
'AddComment'
|
|
).'</button>';
|
|
} else {
|
|
$return .= get_lang('AllUsersHaveDeletedTheFileAndWillNotSeeFeedback');
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
function user_can_download_file($id, $user_id)
|
|
{
|
|
global $dropbox_cnf;
|
|
$course_id = api_get_course_int_id();
|
|
$id = intval($id);
|
|
$user_id = intval($user_id);
|
|
|
|
$sql = "SELECT file_id FROM ".$dropbox_cnf['tbl_person']." WHERE c_id = $course_id AND user_id = $user_id AND file_id = ".$id;
|
|
$result = Database::query($sql);
|
|
$number_users_who_see_file = Database::num_rows($result);
|
|
|
|
$sql = "SELECT file_id FROM ".$dropbox_cnf["tbl_post"]." WHERE c_id = $course_id AND dest_user_id = $user_id AND file_id = ".$id;
|
|
$result = Database::query($sql);
|
|
$count = Database::num_rows($result);
|
|
|
|
return $number_users_who_see_file > 0 || $count > 0;
|
|
}
|
|
|
|
// we now check if the other users have not delete this document yet. If this is the case then it is useless to see the
|
|
// add feedback since the other users will never get to see the feedback.
|
|
function check_if_file_exist($id)
|
|
{
|
|
global $dropbox_cnf;
|
|
$id = intval($id);
|
|
$course_id = api_get_course_int_id();
|
|
$sql = "SELECT file_id FROM ".$dropbox_cnf['tbl_person']." WHERE c_id = $course_id AND file_id = ".$id;
|
|
$result = Database::query($sql);
|
|
$number_users_who_see_file = Database::num_rows($result);
|
|
|
|
$sql = "SELECT file_id FROM ".$dropbox_cnf["tbl_post"]." WHERE c_id = $course_id AND file_id = ".$id;
|
|
$result = Database::query($sql);
|
|
$count = Database::num_rows($result);
|
|
|
|
return $number_users_who_see_file > 0 || $count > 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* @return a language string (depending on the success or failure.
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function store_feedback()
|
|
{
|
|
global $dropbox_cnf;
|
|
if (!is_numeric($_GET['id'])) {
|
|
return get_lang('FeedbackError');
|
|
}
|
|
$course_id = api_get_course_int_id();
|
|
if (empty($_POST['feedback'])) {
|
|
return get_lang('PleaseTypeText');
|
|
} else {
|
|
$sql = "INSERT INTO ".$dropbox_cnf['tbl_feedback']." (c_id, file_id, author_user_id, feedback, feedback_date) VALUES
|
|
($course_id, '".intval($_GET['id'])."','".api_get_user_id()."','".Database::escape_string(
|
|
$_POST['feedback']
|
|
)."', '".api_get_utc_datetime()."')";
|
|
Database::query($sql);
|
|
|
|
return get_lang('DropboxFeedbackStored');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function downloads all the files of the inputarray into one zip
|
|
* @param $array an array containing all the ids of the files that have to be downloaded.
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @todo consider removing the check if the user has received or sent this file (zip download of a folder already sufficiently checks for this).
|
|
* @todo integrate some cleanup function that removes zip files that are older than 2 days
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @author Julio Montoya Addin c_id support
|
|
* @version march 2006
|
|
*/
|
|
function zip_download($array)
|
|
{
|
|
$_course = api_get_course_info();
|
|
global $dropbox_cnf;
|
|
global $files;
|
|
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$sys_course_path = api_get_path(SYS_COURSE_PATH);
|
|
|
|
// place to temporarily stash the zipfiles
|
|
$temp_zip_dir = api_get_path(SYS_COURSE_PATH);
|
|
|
|
$array = array_map('intval', $array);
|
|
|
|
// note: we also have to add the check if the user has received or sent this file.
|
|
$sql = "SELECT DISTINCT file.filename, file.title, file.author, file.description
|
|
FROM ".$dropbox_cnf['tbl_file']." file INNER JOIN ".$dropbox_cnf['tbl_person']." person
|
|
ON (person.file_id=file.id AND file.c_id = $course_id AND person.c_id = $course_id)
|
|
INNER JOIN ".$dropbox_cnf['tbl_post']." post
|
|
ON (post.file_id = file.id AND post.c_id = $course_id AND file.c_id = $course_id)
|
|
WHERE file.id IN (".implode(', ', $array).") AND
|
|
file.id = person.file_id AND
|
|
(person.user_id = '".api_get_user_id()."' OR post.dest_user_id = '".api_get_user_id()."' ) ";
|
|
$result = Database::query($sql);
|
|
$files = array();
|
|
while ($row = Database::fetch_array($result)) {
|
|
$files[$row['filename']] = array(
|
|
'filename' => $row['filename'],
|
|
'title' => $row['title'],
|
|
'author' => $row['author'],
|
|
'description' => $row['description']
|
|
);
|
|
}
|
|
|
|
// Step 3: create the zip file and add all the files to it
|
|
$temp_zip_file = api_get_path(SYS_ARCHIVE_PATH).api_get_unique_id().".zip";
|
|
$zip_folder = new PclZip($temp_zip_file);
|
|
foreach ($files as $key => $value) {
|
|
$zip_folder->add(
|
|
api_get_path(SYS_COURSE_PATH).$_course['path'].'/dropbox/'.$value['filename'],
|
|
PCLZIP_OPT_REMOVE_ALL_PATH,
|
|
PCLZIP_CB_PRE_ADD,
|
|
'my_pre_add_callback'
|
|
);
|
|
}
|
|
$name = 'dropbox-'.api_get_utc_datetime().'.zip';
|
|
DocumentManager::file_send_for_download($temp_zip_file, true, $name);
|
|
@unlink($temp_zip_file);
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* This is a callback function to decrypt the files in the zip file to their normal filename (as stored in the database)
|
|
* @param $p_event a variable of PCLZip
|
|
* @param $p_header a variable of PCLZip
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function my_pre_add_callback($p_event, &$p_header)
|
|
{
|
|
global $files;
|
|
$p_header['stored_filename'] = $files[$p_header['stored_filename']]['title'];
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
* @desc Generates the contents of a html file that gives an overview of all the files in the zip file.
|
|
* This is to know the information of the files that are inside the zip file (who send it, the comment, ...)
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, March 2006
|
|
* @author Ivan Tcholakov, 2010, code for html metadata has been added.
|
|
*/
|
|
function generate_html_overview($files, $dont_show_columns = array(), $make_link = array())
|
|
{
|
|
$return = '<!DOCTYPE html'."\n";
|
|
$return .= "\t".'PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'."\n";
|
|
$return .= "\t".'"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'."\n";
|
|
$return .= '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.api_get_language_isocode(
|
|
).'" lang="'.api_get_language_isocode().'">'."\n";
|
|
|
|
$return .= "<head>\n\t<title>".get_lang('OverviewOfFilesInThisZip')."</title>\n";
|
|
$return .= "\t".'<meta http-equiv="Content-Type" content="text/html; charset='.api_get_system_encoding(
|
|
).'" />'."\n";
|
|
$return .= "</head>\n\n";
|
|
$return .= '<body dir="'.api_get_text_direction().'">'."\n\n";
|
|
$return .= "<table border=\"1px\">\n";
|
|
|
|
$counter = 0;
|
|
foreach ($files as $key => $value) {
|
|
|
|
// Adding the header.
|
|
if ($counter == 0) {
|
|
$columns_array = array_keys($value);
|
|
$return .= "\n<tr>";
|
|
foreach ($columns_array as $columns_array_key => $columns_array_value) {
|
|
if (!in_array($columns_array_value, $dont_show_columns)) {
|
|
$return .= "\n\t<th>".$columns_array_value."</th>";
|
|
}
|
|
$column[] = $columns_array_value;
|
|
}
|
|
$return .= "\n</tr>\n";
|
|
}
|
|
$counter++;
|
|
|
|
// Adding the content.
|
|
$return .= "\n<tr>";
|
|
foreach ($column as $column_key => $column_value) {
|
|
if (!in_array($column_value, $dont_show_columns)) {
|
|
$return .= "\n\t<td>";
|
|
if (in_array($column_value, $make_link)) {
|
|
$return .= '<a href="'.$value[$column_value].'">'.$value[$column_value].'</a>';
|
|
} else {
|
|
$return .= $value[$column_value];
|
|
}
|
|
$return .= "</td>";
|
|
}
|
|
}
|
|
$return .= "\n</tr>\n";
|
|
}
|
|
$return .= "\n</table>\n\n</body>";
|
|
$return .= "\n</html>";
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* @desc This function retrieves the number of feedback messages on every document. This function might become obsolete when
|
|
* the feedback becomes user individual.
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function get_total_number_feedback($file_id = '')
|
|
{
|
|
global $dropbox_cnf;
|
|
$course_id = api_get_course_int_id();
|
|
$sql = "SELECT COUNT(feedback_id) AS total, file_id FROM ".$dropbox_cnf['tbl_feedback']."
|
|
WHERE c_id = $course_id GROUP BY file_id";
|
|
$result = Database::query($sql);
|
|
while ($row = Database::fetch_array($result)) {
|
|
$return[$row['file_id']] = $row['total'];
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
|
|
/**
|
|
* @desc this function checks if the key exists. If this is the case it returns the value, if not it returns 0
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*/
|
|
function check_number_feedback($key, $array)
|
|
{
|
|
if (is_array($array)) {
|
|
if (key_exists($key, $array)) {
|
|
return $array[$key];
|
|
} else {
|
|
return 0;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the last access to a given tool of a given user
|
|
* @param $tool string the tool constant
|
|
* @param $course_code the course_id
|
|
* @param $user_id the id of the user
|
|
* @return string last tool access date
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version march 2006
|
|
*
|
|
* @todo consider moving this function to a more appropriate place.
|
|
*/
|
|
function get_last_tool_access($tool, $courseId = '', $user_id = '')
|
|
{
|
|
global $_course, $_user;
|
|
|
|
// The default values of the parameters
|
|
if ($courseId == '') {
|
|
$courseId = api_get_course_int_id();
|
|
}
|
|
$courseId = intval($courseId);
|
|
|
|
if ($user_id == '') {
|
|
$user_id = $_user['user_id'];
|
|
}
|
|
|
|
// the table where the last tool access is stored (=track_e_lastaccess)
|
|
$table_last_access = Database::get_main_table('track_e_lastaccess');
|
|
|
|
$sql = "SELECT access_date FROM $table_last_access WHERE access_user_id='".Database::escape_string($user_id)."'
|
|
AND c_id ='".Database::escape_string($courseId)."'
|
|
AND access_tool='".Database::escape_string($tool)."'
|
|
ORDER BY access_date DESC
|
|
LIMIT 1";
|
|
$result = Database::query($sql);
|
|
$row = Database::fetch_array($result);
|
|
|
|
return $row['access_date'];
|
|
}
|
|
|