%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/* For licensing terms, see /license.txt */
use ChamiloSession as Session;
/**
* This file contains additional dropbox functions. Initially there were some
* functions in the init files also but I have moved them over
* to one file -- Patrick Cool <patrick.cool@UGent.be>, Ghent University.
*
* @author Julio Montoya adding c_id support
*/
$this_section = SECTION_COURSES;
$htmlHeadXtra[] = '<script>
function setFocus(){
$("#category_title").focus();
}
$(function() {
setFocus();
});
</script>';
/**
* This function is a wrapper function for the multiple actions feature.
*
* @return string|null If there is a problem, return a string message, otherwise nothing
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function handle_multiple_actions()
{
$_user = api_get_user_info();
$is_courseAdmin = api_is_course_admin();
$is_courseTutor = api_is_course_tutor();
// STEP 1: are we performing the actions on the received or on the sent files?
if ($_POST['action'] == 'delete_received' || $_POST['action'] == 'download_received') {
$part = 'received';
} elseif ($_POST['action'] == 'delete_sent' || $_POST['action'] == 'download_sent') {
$part = 'sent';
}
// STEP 2: at least one file has to be selected. If not we return an error message
$ids = isset($_GET['id']) ? $_GET['id'] : [];
if (count($ids) > 0) {
$checked_file_ids = $_POST['id'];
} else {
foreach ($_POST as $key => $value) {
if (strstr($value, $part.'_') && $key != 'view_received_category' && $key != 'view_sent_category') {
$checked_files = true;
$checked_file_ids[] = intval(substr($value, strrpos($value, '_')));
}
}
}
$checked_file_ids = $_POST['id'];
if (!is_array($checked_file_ids) || count($checked_file_ids) == 0) {
return get_lang('CheckAtLeastOneFile');
}
// Deleting
if ($_POST['action'] == 'delete_received' || $_POST['action'] == 'delete_sent') {
$dropboxfile = new Dropbox_Person($_user['user_id'], $is_courseAdmin, $is_courseTutor);
foreach ($checked_file_ids as $key => $value) {
if ($_GET['view'] == 'received') {
$dropboxfile->deleteReceivedWork($value);
$message = get_lang('ReceivedFileDeleted');
}
if ($_GET['view'] == 'sent' || empty($_GET['view'])) {
$dropboxfile->deleteSentWork($value);
$message = get_lang('SentFileDeleted');
}
}
return $message;
}
// moving
if (strstr($_POST['action'], 'move_')) {
// check move_received_n or move_sent_n command
if (strstr($_POST['action'], 'received')) {
$part = 'received';
$to_cat_id = str_replace('move_received_', '', $_POST['action']);
} else {
$part = 'sent';
$to_cat_id = str_replace('move_sent_', '', $_POST['action']);
}
foreach ($checked_file_ids as $value) {
store_move($value, $to_cat_id, $part);
}
return get_lang('FilesMoved');
}
// STEP 3D: downloading
if ($_POST['action'] == 'download_sent' || $_POST['action'] == 'download_received') {
zip_download($checked_file_ids);
}
}
/**
* Get conf settings.
*
* @return array
*/
function getDropboxConf()
{
return Session::read('dropbox_conf');
}
/**
* This function deletes a dropbox category.
*
* @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
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function delete_category($action, $id, $user_id = null)
{
$course_id = api_get_course_int_id();
$is_courseAdmin = api_is_course_admin();
$is_courseTutor = api_is_course_tutor();
if (empty($user_id)) {
$user_id = api_get_user_id();
}
$cat = get_dropbox_category($id);
if (count($cat) == 0) {
return false;
}
if ($cat['user_id'] != $user_id && !api_is_platform_admin($user_id)) {
return false;
}
// an additional check that might not be necessary
if ($action == 'deletereceivedcategory') {
$sentreceived = 'received';
$entries_table = Database::get_course_table(TABLE_DROPBOX_POST);
$id_field = 'file_id';
$return_message = get_lang('ReceivedCatgoryDeleted');
} elseif ($action == 'deletesentcategory') {
$sentreceived = 'sent';
$entries_table = Database::get_course_table(TABLE_DROPBOX_FILE);
$id_field = 'id';
$return_message = get_lang('SentCatgoryDeleted');
} else {
return get_lang('Error');
}
// step 1: delete the category
$sql = "DELETE FROM ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
WHERE c_id = $course_id AND cat_id='".intval($id)."' AND $sentreceived='1'";
Database::query($sql);
// step 2: delete all the documents in this category
$sql = "SELECT * FROM ".$entries_table."
WHERE c_id = $course_id AND cat_id='".intval($id)."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$dropboxfile = new Dropbox_Person($user_id, $is_courseAdmin, $is_courseTutor);
if ($action == 'deletereceivedcategory') {
$dropboxfile->deleteReceivedWork($row[$id_field]);
}
if ($action == 'deletesentcategory') {
$dropboxfile->deleteSentWork($row[$id_field]);
}
}
return $return_message;
}
/**
* Displays the form to move one individual file to a category.
*
*@ return html code of the form that appears in a message box.
*
* @author Julio Montoya - function rewritten
*/
function display_move_form(
$part,
$id,
$target,
$extra_params,
$viewReceivedCategory,
$viewSentCategory,
$view
) {
$form = new FormValidator(
'form1',
'post',
api_get_self().'?view_received_category='.$viewReceivedCategory.'&view_sent_category='.$viewSentCategory.'&view='.$view.'&'.$extra_params
);
$form->addElement('header', get_lang('MoveFileTo'));
$form->addElement('hidden', 'id', intval($id));
$form->addElement('hidden', 'part', Security::remove_XSS($part));
$options = ['0' => get_lang('Root')];
foreach ($target as $category) {
$options[$category['cat_id']] = $category['cat_name'];
}
$form->addElement('select', 'move_target', get_lang('MoveFileTo'), $options);
$form->addButtonMove(get_lang('MoveFile'), 'do_move');
$form->display();
}
/**
* This function moves a file to a different category.
*
* @param int $id the id of the file we are moving
* @param int $target the id of the folder we are moving to
* @param string $part are we moving a received file or a sent file?
*
* @return string string
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function store_move($id, $target, $part)
{
$_user = api_get_user_info();
$course_id = api_get_course_int_id();
if ((isset($id) && $id != '') &&
(isset($target) && $target != '') &&
(isset($part) && $part != '')
) {
if ($part == 'received') {
$sql = "UPDATE ".Database::get_course_table(TABLE_DROPBOX_POST)."
SET cat_id = ".intval($target)."
WHERE c_id = $course_id AND dest_user_id = ".intval($_user['user_id'])."
AND file_id = ".intval($id)."";
Database::query($sql);
$return_message = get_lang('ReceivedFileMoved');
}
if ($part == 'sent') {
$sql = "UPDATE ".Database::get_course_table(TABLE_DROPBOX_FILE)."
SET cat_id = ".intval($target)."
WHERE
c_id = $course_id AND
uploader_id = ".intval($_user['user_id'])." AND
id = ".intval($id);
Database::query($sql);
$return_message = get_lang('SentFileMoved');
}
} else {
$return_message = get_lang('NotMovedError');
}
return $return_message;
}
/**
* This function retrieves all dropbox categories and returns them as an array.
*
* @param $filter default '', when we need only the categories of the sent or the received part
*
* @return array
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function get_dropbox_categories($filter = '')
{
$course_id = api_get_course_int_id();
$_user = api_get_user_info();
$return_array = [];
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id);
$sql = "SELECT * FROM ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
WHERE c_id = $course_id AND user_id='".$_user['user_id']."' $condition_session";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if (($filter == 'sent' && $row['sent'] == 1) ||
($filter == 'received' && $row['received'] == 1) || $filter == ''
) {
$return_array[$row['cat_id']] = $row;
}
}
return $return_array;
}
/**
* Get a dropbox category details.
*
* @param int The category ID
*
* @return array The details of this category
*/
function get_dropbox_category($id)
{
$course_id = api_get_course_int_id();
$id = (int) $id;
if (empty($id)) {
return [];
}
$sql = "SELECT * FROM ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
WHERE c_id = $course_id AND cat_id='".$id."'";
$res = Database::query($sql);
if ($res === false) {
return [];
}
$row = Database::fetch_assoc($res);
return $row;
}
/**
* This functions stores a new dropboxcategory.
*
* @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
* dropbox_category table but it is the easiest solution. You get
* cat_name | received | sent | user_id
* test | 1 | 0 | 237
* test | 0 | 1 | 237
* more elegant would be
* test | 1 | 1 | 237
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function store_addcategory()
{
$course_id = api_get_course_int_id();
$_user = api_get_user_info();
// check if the target is valid
if ($_POST['target'] == 'sent') {
$sent = 1;
$received = 0;
} elseif ($_POST['target'] == 'received') {
$sent = 0;
$received = 1;
} else {
return get_lang('Error');
}
// check if the category name is valid
if ($_POST['category_name'] == '') {
return ['type' => 'error', 'message' => get_lang('ErrorPleaseGiveCategoryName')];
}
if (!isset($_POST['edit_id'])) {
$session_id = api_get_session_id();
// step 3a, we check if the category doesn't already exist
$sql = "SELECT * FROM ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
WHERE
c_id = $course_id AND
user_id='".$_user['user_id']."' AND
cat_name='".Database::escape_string($_POST['category_name'])."' AND
received='".$received."' AND
sent='$sent' AND
session_id='$session_id'";
$result = Database::query($sql);
// step 3b, we add the category if it does not exist yet.
if (Database::num_rows($result) == 0) {
$params = [
'cat_id' => 0,
'c_id' => $course_id,
'cat_name' => $_POST['category_name'],
'received' => $received,
'sent' => $sent,
'user_id' => $_user['user_id'],
'session_id' => $session_id,
];
$id = Database::insert(Database::get_course_table(TABLE_DROPBOX_CATEGORY), $params);
if ($id) {
$sql = "UPDATE ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)." SET cat_id = iid
WHERE iid = $id";
Database::query($sql);
}
return ['type' => 'confirmation', 'message' => get_lang('CategoryStored')];
} else {
return ['type' => 'error', 'message' => get_lang('CategoryAlreadyExistsEditIt')];
}
} else {
$params = [
'cat_name' => $_POST['category_name'],
'received' => $received,
'sent' => $sent,
];
Database::update(
Database::get_course_table(TABLE_DROPBOX_CATEGORY),
$params,
[
'c_id = ? AND user_id = ? AND cat_id = ?' => [
$course_id,
$_user['user_id'],
$_POST['edit_id'],
],
]
);
return ['type' => 'confirmation', 'message' => get_lang('CategoryModified')];
}
}
/**
* This function displays the form to add a new category.
*
* @param string $category_name this parameter is the name of the category (used when no section is selected)
* @param int $id this is the id of the category we are editing
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function display_addcategory_form($category_name = '', $id = 0, $action = '')
{
$course_id = api_get_course_int_id();
$title = get_lang('AddNewCategory');
$id = (int) $id;
if (!empty($id)) {
// retrieve the category we are editing
$sql = "SELECT * FROM ".Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
WHERE c_id = $course_id AND cat_id = ".$id;
$result = Database::query($sql);
$row = Database::fetch_array($result);
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)
$category_name = $row['cat_name'];
}
if ($row['received'] == '1') {
$target = 'received';
}
if ($row['sent'] == '1') {
$target = 'sent';
}
$title = get_lang('EditCategory');
}
if ($action == 'addreceivedcategory') {
$target = 'received';
}
if ($action == 'addsentcategory') {
$target = 'sent';
}
if ($action == 'editcategory') {
$text = get_lang('ModifyCategory');
} elseif ($action == 'addreceivedcategory' || $action == 'addsentcategory') {
$text = get_lang('CreateCategory');
}
$form = new FormValidator(
'add_new_category',
'post',
api_get_self().'?'.api_get_cidreq().'&view='.Security::remove_XSS($_GET['view'])
);
$form->addElement('header', $title);
if (!empty($id)) {
$form->addElement('hidden', 'edit_id', $id);
}
$form->addElement('hidden', 'action', Security::remove_XSS($action));
$form->addElement('hidden', 'target', Security::remove_XSS($target));
$form->addElement('text', 'category_name', get_lang('CategoryName'));
$form->addRule('category_name', get_lang('ThisFieldIsRequired'), 'required');
$form->addButtonSave($text, 'StoreCategory');
$defaults = [];
$defaults['category_name'] = Security::remove_XSS($category_name);
$form->setDefaults($defaults);
$form->display();
}
/**
* this function displays the form to upload a new item to the dropbox.
*
* @param $viewReceivedCategory
* @param $viewSentCategory
* @param $view
* @param int $id
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
* @author Julio Montoya
*
* @version march 2006
*/
function display_add_form($viewReceivedCategory, $viewSentCategory, $view, $id = 0, $action = 'add')
{
$course_info = api_get_course_info();
$_user = api_get_user_info();
$is_courseAdmin = api_is_course_admin();
$is_courseTutor = api_is_course_tutor();
$origin = api_get_origin();
$token = Security::get_token();
$dropbox_person = new Dropbox_Person(
api_get_user_id(),
$is_courseAdmin,
$is_courseTutor
);
$idCondition = !empty($id) ? '&id='.(int) $id : '';
$url = api_get_self().'?view_received_category='.$viewReceivedCategory.'&view_sent_category='.$viewSentCategory.'&view='.$view.'&'.api_get_cidreq().$idCondition;
$form = new FormValidator(
'sent_form',
'post',
$url,
null,
[
'enctype' => 'multipart/form-data',
'onsubmit' => 'javascript: return checkForm(this);',
]
);
$langFormHeader = ('send_other_users' == $action ? get_lang('SendFileToOtherUsers') : get_lang('UploadNewFile'));
$form->addElement('header', $langFormHeader);
$form->addElement('hidden', 'sec_token', $token);
$form->addElement('hidden', 'origin', $origin);
if ('add' == $action) {
$maxFileSize = getIniMaxFileSizeInBytes();
$form->addElement('hidden', 'MAX_FILE_SIZE', $maxFileSize);
$form->addElement(
'file',
'file',
get_lang('UploadFile'),
['onChange' => 'javascript: checkfile(this.value);']
);
$allowOverwrite = api_get_setting('dropbox_allow_overwrite');
if ($allowOverwrite == 'true' && empty($idCondition)) {
$form->addElement(
'checkbox',
'cb_overwrite',
null,
get_lang('OverwriteFile'),
['id' => 'cb_overwrite']
);
}
}
// List of all users in this course and all virtual courses combined with it
if (api_get_session_id()) {
$complete_user_list_for_dropbox = [];
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(),
null,
null,
0,
false,
false,
false,
[],
[],
[],
true
);
}
$complete_user_list2 = CourseManager::get_coach_list_from_course_code(
$course_info['code'],
api_get_session_id()
);
$generalCoachList = [];
$courseCoachList = [];
foreach ($complete_user_list2 as $coach) {
if ($coach['type'] == 'general_coach') {
$generalCoachList[] = $coach;
} else {
$courseCoachList[] = $coach;
}
}
$hideCourseCoach = api_get_setting('dropbox_hide_course_coach');
if ($hideCourseCoach == 'false') {
$complete_user_list_for_dropbox = array_merge(
$complete_user_list_for_dropbox,
$courseCoachList
);
}
$hideGeneralCoach = api_get_setting('dropbox_hide_general_coach');
if ($hideGeneralCoach == 'false') {
$complete_user_list_for_dropbox = array_merge(
$complete_user_list_for_dropbox,
$generalCoachList
);
}
} 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(),
null,
null,
null,
false,
false,
false,
[],
[],
[],
true
);
} else {
$complete_user_list_for_dropbox = CourseManager::get_teacher_list_from_course_code(
$course_info['code'],
false
);
}
}
if (!empty($complete_user_list_for_dropbox)) {
foreach ($complete_user_list_for_dropbox as $k => $e) {
$complete_user_list_for_dropbox[$k] = $e + [
'lastcommafirst' => api_get_person_name(
$e['firstname'],
$e['lastname']
),
];
}
$complete_user_list_for_dropbox = TableSort::sort_table($complete_user_list_for_dropbox, 'lastcommafirst');
}
/*
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 = '';
$allowStudentToStudent = api_get_setting('dropbox_allow_student_to_student');
$options = [];
$userGroup = new UserGroup();
foreach ($complete_user_list_for_dropbox as $current_user) {
if ((
$dropbox_person->isCourseTutor
|| $dropbox_person->isCourseAdmin
|| $allowStudentToStudent == 'true'
|| $current_user['status'] != 5 // Always allow teachers.
|| $current_user['is_tutor'] == 1 // Always allow tutors.
) && $current_user['user_id'] != $_user['user_id']) { // Don't include yourself.
if ($current_user['user_id'] == $current_user_id) {
continue;
}
$userId = $current_user['user_id'];
$userInfo = api_get_user_info($userId);
if ($userInfo['status'] != INVITEE) {
$groupNameListToString = '';
if (!empty($groups)) {
$groupNameList = array_column($groups, 'name');
$groupNameListToString = ' - ['.implode(', ', $groupNameList).']';
}
$groups = $userGroup->getUserGroupListByUser($userId);
$full_name = $userInfo['complete_name'].$groupNameListToString;
$current_user_id = $current_user['user_id'];
$options['user_'.$current_user_id] = $full_name;
}
}
}
/*
* Show groups
*/
$allowGroups = api_get_setting('dropbox_allow_group');
if (($dropbox_person->isCourseTutor || $dropbox_person->isCourseAdmin)
&& $allowGroups == 'true' || $allowStudentToStudent == 'true'
) {
$complete_group_list_for_dropbox = GroupManager::get_group_list(null, $course_info);
if (count($complete_group_list_for_dropbox) > 0) {
foreach ($complete_group_list_for_dropbox as $current_group) {
if ($current_group['number_of_members'] > 0) {
$options['group_'.$current_group['id']] = 'G: '.$current_group['name'].' - '.$current_group['number_of_members'].' '.get_lang('Users');
}
}
}
}
if ('add' == $action) {
$allowUpload = api_get_setting('dropbox_allow_just_upload');
if ($allowUpload == 'true') {
$options['user_'.$_user['user_id']] = get_lang('JustUploadInSelect');
}
if (empty($idCondition)) {
$form->addSelect(
'recipients',
get_lang('SendTo'),
$options,
[
'multiple' => 'multiple',
'size' => '10',
]
);
}
$form->addButtonUpload(get_lang('Upload'), 'submitWork');
$headers = [
get_lang('Upload'),
get_lang('Upload').' ('.get_lang('Simple').')',
];
$multipleForm = new FormValidator(
'sent_multiple',
'post',
'#',
null,
['enctype' => 'multipart/form-data', 'id' => 'fileupload']
);
if (empty($idCondition)) {
$multipleForm->addSelect(
'recipients',
get_lang('SendTo'),
$options,
[
'multiple' => 'multiple',
'size' => '10',
'id' => 'recipient_form',
]
);
}
$url = api_get_path(WEB_AJAX_PATH).'dropbox.ajax.php?'.api_get_cidreq().'&a=upload_file&'.$idCondition;
if (empty($idCondition)) {
$multipleForm->addHtml('<div id="multiple_form" style="display:none">');
}
$multipleForm->addMultipleUpload($url);
if (empty($idCondition)) {
$multipleForm->addHtml('</div>');
}
echo Display::tabs(
$headers,
[$multipleForm->returnForm(), $form->returnForm()],
'tabs'
);
} else {
$tblDropboxPerson = Database::get_course_table(TABLE_DROPBOX_PERSON);
$tblDropboxFile = Database::get_course_table(TABLE_DROPBOX_FILE);
$courseId = api_get_course_int_id();
$optionsDpUsers = [];
$current_user_id = api_get_user_id();
$sql = "SELECT user_id
FROM $tblDropboxPerson
WHERE
c_id = $courseId AND
file_id = $id AND user_id != $current_user_id";
$rs = Database::query($sql);
if (Database::num_rows($rs) > 0) {
while ($row = Database::fetch_array($rs)) {
$dpUserId = $row['user_id'];
$dpUser = api_get_user_info($dpUserId);
$optionsDpUsers['user_'.$dpUserId] = $dpUser['complete_name'];
if (isset($options['user_'.$dpUserId])) {
unset($options['user_'.$dpUserId]);
}
}
}
$form->addSelect(
'recipients',
get_lang('SendTo'),
$options,
[
'multiple' => 'multiple',
'size' => '10',
]
);
$formRemove = new FormValidator('sent_remove', 'post');
$formRemove->addElement('header', get_lang('RemoveFileFromSelectedUsers'));
$formRemove->addSelect(
'recipients',
get_lang('Remove'),
$optionsDpUsers,
[
'multiple' => 'multiple',
'size' => '10',
]
);
// Current file information.
$sql = "SELECT title, filesize
FROM $tblDropboxFile
WHERE
c_id = $courseId AND
iid = $id";
$rs = Database::query($sql);
$dropboxFile = Database::fetch_array($rs);
if (!empty($dropboxFile)) {
$icon = DocumentManager::build_document_icon_tag('file', $dropboxFile['title']);
$filesize = format_file_size($dropboxFile['filesize']);
$labelFile = "$icon {$dropboxFile['title']} ($filesize)";
$form->addLabel(get_lang('File'), $labelFile);
$formRemove->addLabel(get_lang('File'), $labelFile);
}
$form->addElement('hidden', 'file_id', $id);
$form->addElement('hidden', 'action', $action);
$form->addElement('hidden', 'option', 'add_users');
$form->addButtonUpload(get_lang('SendToUsers'), 'submitWork');
$formRemove->addElement('hidden', 'sec_token', $token);
$formRemove->addElement('hidden', 'origin', $origin);
$formRemove->addElement('hidden', 'file_id', $id);
$formRemove->addElement('hidden', 'action', $action);
$formRemove->addElement('hidden', 'option', 'remove_users');
$formRemove->addButtonUpload(get_lang('RemoveUsers'), 'submitWork');
echo Display::tabs(
[get_lang('AddUsers'), get_lang('RemoveUsers')],
[$form->returnForm(), $formRemove->returnForm()],
'tabs'
);
}
}
/**
* 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(int $courseId = 0, int $sessionId = 0)
{
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
$_course = api_get_course_info_by_id($courseId);
if (empty($sessionId)) {
$sessionId = api_get_session_id();
}
$condition_session = api_get_session_condition($sessionId, true, false, 'f.session_id');
// select all files that aren't referenced anymore
$sql = "SELECT DISTINCT f.iid, f.filename
FROM ".Database::get_course_table(TABLE_DROPBOX_FILE)." f
LEFT JOIN ".Database::get_course_table(TABLE_DROPBOX_PERSON)." p
ON (f.iid = p.file_id)
WHERE p.user_id IS NULL AND
f.c_id = $courseId
$condition_session
";
$result = Database::query($sql);
$condition_session = api_get_session_condition($sessionId);
while ($res = Database::fetch_array($result)) {
//delete the selected files from the post and file tables
$sql = "DELETE FROM ".Database::get_course_table(TABLE_DROPBOX_POST)."
WHERE c_id = $courseId $condition_session AND file_id = ".$res['iid'];
Database::query($sql);
$sql = "DELETE FROM ".Database::get_course_table(TABLE_DROPBOX_FILE)."
WHERE iid = ".$res['iid'];
Database::query($sql);
//delete file from server
@unlink(api_get_path(SYS_COURSE_PATH).$_course['path'].'/dropbox/'.$res['filename']);
}
}
/**
* Mailing zip-file is posted to (dest_user_id = ) mailing pseudo_id
* and is only visible to its uploader (user_id).
*
* Mailing content files have uploader_id == mailing pseudo_id, a normal recipient,
* and are visible initially to recipient and pseudo_id.
*
* @author René Haentjens, Ghent University
*
* @todo check if this function is still necessary.
*/
function getUserOwningThisMailing($mailingPseudoId, $owner = 0, $or_die = '')
{
$course_id = api_get_course_int_id();
$mailingPseudoId = (int) $mailingPseudoId;
$sql = "SELECT f.uploader_id
FROM ".Database::get_course_table(TABLE_DROPBOX_FILE)." f
LEFT JOIN ".Database::get_course_table(TABLE_DROPBOX_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))) {
exit(get_lang('GeneralError').' (code 901)');
}
if ($owner == 0) {
return $res['uploader_id'];
}
if ($res['uploader_id'] == $owner) {
return true;
}
exit(get_lang('GeneralError').' (code '.$or_die.')');
}
/**
* @author René Haentjens, Ghent University
*
* @todo check if this function is still necessary.
*/
function removeMoreIfMailing(int $file_id, int $courseId = 0, int $sessionId = 0, int $uploaderId = 0)
{
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
if (empty($sessionId)) {
$sessionId = api_get_session_id();
}
$condition_session = api_get_session_condition($sessionId);
if (empty($uploaderId)) {
$uploaderId = api_get_user_id();
}
// 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
$sql = "SELECT p.dest_user_id
FROM ".Database::get_course_table(TABLE_DROPBOX_POST)." p
WHERE c_id = $courseId $condition_session AND p.file_id = $file_id";
$result = Database::query($sql);
if ($res = Database::fetch_array($result)) {
$mailingPseudoId = $res['dest_user_id'];
$mailId = get_mail_id_base();
if ($mailingPseudoId > $mailId) {
$sql = "DELETE FROM ".Database::get_course_table(TABLE_DROPBOX_PERSON)."
WHERE c_id = $courseId AND user_id = $mailingPseudoId";
Database::query($sql);
$sql = "UPDATE ".Database::get_course_table(TABLE_DROPBOX_FILE)."
SET uploader_id = $uploaderId
WHERE c_id = $courseId $condition_session AND uploader_id = $mailingPseudoId";
Database::query($sql);
}
}
}
/**
* @param array $file
* @param Dropbox_SentWork $work
*
* @return array|string|null
*/
function store_add_dropbox($file = [], $work = null)
{
$_course = api_get_course_info();
$_user = api_get_user_info();
if (empty($file)) {
$file = isset($_FILES['file']) ? $_FILES['file'] : null;
}
if (empty($work)) {
// Validating the form data
// there are no recipients selected
if (!isset($_POST['recipients']) || count($_POST['recipients']) <= 0) {
return get_lang('YouMustSelectAtLeastOneDestinee');
} else {
// Check if all the recipients are valid
$thisIsAMailing = false;
$thisIsJustUpload = false;
foreach ($_POST['recipients'] as $rec) {
if ($rec == 'mailing') {
$thisIsAMailing = true;
} elseif ($rec == 'upload') {
$thisIsJustUpload = true;
} elseif (strpos($rec, 'user_') === 0 &&
!CourseManager::is_user_subscribed_in_course(
substr($rec, strlen('user_')),
$_course['code'],
true
)
) {
Display::addFlash(
Display::return_message(
get_lang('InvalideUserDetected'),
'warning'
)
);
return false;
} elseif (strpos($rec, 'group_') !== 0 && strpos($rec, 'user_') !== 0) {
Display::addFlash(
Display::return_message(
get_lang('InvalideGroupDetected'),
'warning'
)
);
return false;
}
}
}
// we are doing a mailing but an additional recipient is selected
if ($thisIsAMailing && (count($_POST['recipients']) != 1)) {
Display::addFlash(
Display::return_message(
get_lang('MailingSelectNoOther'),
'warning'
)
);
return false;
}
// we are doing a just upload but an additional recipient is selected.
// note: why can't this be valid? It is like sending a document to
// yourself AND to a different person (I do this quite often with my e-mails)
if ($thisIsJustUpload && (count($_POST['recipients']) != 1)) {
Display::addFlash(
Display::return_message(
get_lang('MailingJustUploadSelectNoOther'),
'warning'
)
);
return false;
}
}
$fileId = 0;
$sendToOtherUsers = false;
if ((isset($_POST['action']) && 'send_other_users' == $_POST['action']) && isset($_POST['file_id'])) {
$fileId = (int) $_POST['file_id'];
$sendToOtherUsers = true;
}
if (!$sendToOtherUsers) {
if (empty($file['name'])) {
Display::addFlash(Display::return_message(get_lang('NoFileSpecified'), 'warning'));
return false;
}
// 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 = $file['name'];
$dropbox_filesize = $file['size'];
$dropbox_filetype = $file['type'];
$dropbox_filetmpname = $file['tmp_name'];
// check if the filesize does not exceed the allowed size.
$maxFileSize = getIniMaxFileSizeInBytes();
if ($dropbox_filesize <= 0 || $dropbox_filesize > $maxFileSize) {
Display::addFlash(Display::return_message(get_lang('DropboxFileTooBig'), 'warning'));
return false;
}
// check if the file is actually uploaded
if (!isset($file['copy_file']) && !is_uploaded_file($dropbox_filetmpname)) { // check user fraud : no clean error msg.
Display::addFlash(Display::return_message(get_lang('TheFileIsNotUploaded'), 'warning'));
return false;
}
$upload_ok = process_uploaded_file($file, true);
if (!$upload_ok) {
return null;
}
// Try to add an extension to the file if it hasn't got one
$dropbox_filename = add_ext_on_mime($dropbox_filename, $dropbox_filetype);
// Replace dangerous characters
$dropbox_filename = api_replace_dangerous_char($dropbox_filename);
// Transform any .php file in .phps fo security
$dropbox_filename = php2phps($dropbox_filename);
//filter extension
if (!filter_extension($dropbox_filename)) {
Display::addFlash(
Display::return_message(
get_lang('UplUnableToSaveFileFilteredExtension'),
'warning'
)
);
return false;
}
// set title
$dropbox_title = $dropbox_filename;
// note: I think we could better migrate everything from here on to
// separate functions: store_new_dropbox, store_new_mailing, store_just_upload
if ($dropbox_overwrite && empty($work)) {
$dropbox_person = new Dropbox_Person(
$_user['user_id'],
api_is_course_admin(),
api_is_course_tutor()
);
$mailId = get_mail_id_base();
foreach ($dropbox_person->sentWork as $w) {
if ($w->title == $dropbox_filename) {
if (($w->recipients[0]['id'] > $mailId) xor $thisIsAMailing) {
Display::addFlash(Display::return_message(get_lang('MailingNonMailingError'), 'warning'));
return false;
}
if (($w->recipients[0]['id'] == $_user['user_id']) xor $thisIsJustUpload) {
Display::addFlash(Display::return_message(get_lang('MailingJustUploadSelectNoOther'), 'warning'));
return false;
}
$dropbox_filename = $w->filename;
$found = true; // note: do we still need this?
break;
}
}
} else { // rename file to login_filename_uniqueId format
$dropbox_filename = $_user['username']."_".$dropbox_filename."_".uniqid('');
}
if (isset($file['copy_file']) && $file['copy_file']) {
@copy($dropbox_filetmpname, api_get_path(SYS_COURSE_PATH).$_course['path'].'/dropbox/'.$dropbox_filename);
@unlink($dropbox_filetmpname);
} else {
@move_uploaded_file(
$dropbox_filetmpname,
api_get_path(SYS_COURSE_PATH).$_course['path'].'/dropbox/'.$dropbox_filename
);
}
}
if (empty($work)) {
// creating the array that contains all the users who will receive the file
$new_work_recipients = [];
foreach ($_POST['recipients'] as $rec) {
if (strpos($rec, 'user_') === 0) {
$new_work_recipients[] = substr($rec, strlen('user_'));
} elseif (strpos($rec, 'group_') === 0) {
$groupInfo = GroupManager::get_group_properties(substr($rec, strlen('group_')));
$userList = GroupManager::get_subscribed_users($groupInfo);
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'];
}
}
}
}
$b_send_mail = api_get_course_setting('email_alert_on_new_doc_dropbox');
if ($b_send_mail) {
foreach ($new_work_recipients as $recipient_id) {
$recipent_temp = api_get_user_info($recipient_id);
$additionalParameters = [
'smsType' => SmsPlugin::NEW_FILE_SHARED_COURSE_BY,
'userId' => $recipient_id,
'courseTitle' => $_course['title'],
'userUsername' => $recipent_temp['username'],
];
$message = get_lang('NewDropboxFileUploadedContent').
' <a href="'.api_get_path(WEB_CODE_PATH).'dropbox/index.php?'.api_get_cidreq().'">'.get_lang('SeeFile').'</a>'.
"\n\n".
api_get_person_name(
$_user['firstName'],
$_user['lastName'],
null,
PERSON_NAME_EMAIL_ADDRESS
)."\n".get_lang('Email')." : ".$_user['mail'];
MessageManager::send_message_simple(
$recipient_id,
get_lang('NewDropboxFileUploaded'),
$message,
$_user['user_id'],
false,
false,
$additionalParameters
);
}
}
}
$successMessage = get_lang('FileUploadSucces');
if ($sendToOtherUsers) {
$result = true;
if ('remove_users' == $_POST['option']) {
foreach ($new_work_recipients as $userId) {
removeUserDropboxFile($fileId, $userId);
}
$successMessage = get_lang('FileRemovedFromSelectedUsers');
} else {
foreach ($new_work_recipients as $userId) {
addDropBoxFileToUser($fileId, $userId);
}
}
} else {
if (empty($work)) {
// Create new
$result = new Dropbox_SentWork(
$_user['user_id'],
$dropbox_title,
isset($_POST['description']) ? $_POST['description'] : '',
api_get_user_id(),
$dropbox_filename,
$dropbox_filesize,
$new_work_recipients
);
} else {
// Update
$work->title = $dropbox_title;
$work->filename = $dropbox_filename;
$work->filesize = $dropbox_filesize;
$work->last_upload_date = api_get_utc_datetime();
$work->description = isset($_POST['description']) ? $_POST['description'] : '';
$work->uploader_id = api_get_user_id();
$work->updateFile();
$result = $work;
}
}
Security::clear_token();
Display::addFlash(Display::return_message($successMessage));
return $result;
}
/**
* It removes a dropbox file of a selected user.
*
* @param $fileId
* @param $userId
*/
function removeUserDropboxFile($fileId, $userId)
{
$tblDropboxPerson = Database::get_course_table(TABLE_DROPBOX_PERSON);
$tblDropboxPost = Database::get_course_table(TABLE_DROPBOX_POST);
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
$params = [$courseId, $fileId, $userId];
$result = Database::delete(
$tblDropboxPerson,
['c_id = ? AND file_id = ? AND user_id = ?' => $params]
);
$params = [$courseId, $fileId, $userId, $sessionId];
$result = Database::delete(
$tblDropboxPost,
['c_id = ? AND file_id = ? AND dest_user_id = ? AND session_id = ?' => $params]
);
}
/**
* It sends a file to a selected user.
*
* @param $fileId
* @param $userId
*/
function addDropBoxFileToUser($fileId, $userId)
{
$tblDropboxPerson = Database::get_course_table(TABLE_DROPBOX_PERSON);
$tblDropboxPost = Database::get_course_table(TABLE_DROPBOX_POST);
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
$sql = "SELECT count(file_id) as count
FROM $tblDropboxPerson
WHERE c_id = $courseId AND file_id = $fileId AND user_id = $userId";
$rs = Database::query($sql);
$row = Database::fetch_array($rs);
if (0 == $row['count']) {
$params = [
'c_id' => $courseId,
'file_id' => $fileId,
'user_id' => $userId,
];
Database::insert($tblDropboxPerson, $params);
}
$sql = "SELECT count(file_id) as count
FROM $tblDropboxPost
WHERE c_id = $courseId AND file_id = $fileId AND dest_user_id = $userId AND session_id = $sessionId";
$rs = Database::query($sql);
$row = Database::fetch_array($rs);
if (0 == $row['count']) {
$params = [
'c_id' => $courseId,
'file_id' => $fileId,
'dest_user_id' => $userId,
'session_id' => $sessionId,
'feedback_date' => api_get_utc_datetime(),
'cat_id' => 0,
];
Database::insert($tblDropboxPost, $params);
}
// Update item_property table for each recipient
api_item_property_update(
api_get_course_info(),
TOOL_DROPBOX,
$fileId,
'DropboxFileAdded',
api_get_user_id(),
null,
$userId
);
}
/**
* Transforms the array containing all the feedback into something visually attractive.
*
* @param an array containing all the feedback about the given message
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function feedback($array, $url)
{
$output = null;
foreach ($array as $value) {
$output .= format_feedback($value);
}
$output .= feedback_form($url);
return $output;
}
/**
* This function returns the html code to display the feedback messages on a given dropbox file.
*
* @param array $feedback an array that contains all the feedback messages about the given document
*
* @return string code
*
* @todo add the form for adding new comment (if the other party has not deleted it yet).
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function format_feedback($feedback)
{
$userInfo = api_get_user_info($feedback['author_user_id']);
$output = UserManager::getUserProfileLink($userInfo);
$output .= ' '.Display::dateToStringAgoAndLongDate($feedback['feedback_date']).'<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.
*
* @param $url url string
*
* @return string code
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function feedback_form($url)
{
$return = '<div class="feeback-form">';
$number_users_who_see_file = check_if_file_exist($_GET['id']);
if ($number_users_who_see_file) {
$token = Security::get_token();
$return .= '<div class="form-group">';
$return .= '<input type="hidden" name="sec_token" value="'.$token.'"/>';
$return .= '<label class="col-sm-3 control-label">'.get_lang('AddNewFeedback');
$return .= '</label>';
$return .= '<div class="col-sm-6">';
$return .= '<textarea name="feedback" class="form-control" rows="4"></textarea>';
$return .= '</div>';
$return .= '<div class="col-sm-3">';
$return .= '<div class="pull-right"><a class="btn btn-default btn-sm" href="'.$url.'"><i class="fa fa-times" aria-hidden="true"></i></a></div>';
$return .= '<button type="submit" class="btn btn-primary btn-sm" name="store_feedback" value="'.get_lang('Ok').'"
onclick="javascript: document.form_dropbox.attributes.action.value = document.location;">'.get_lang('AddComment').'</button>';
$return .= '</div>';
$return .= '</div>';
$return .= '</div>';
} else {
$return .= get_lang('AllUsersHaveDeletedTheFileAndWillNotSeeFeedback');
}
return $return;
}
function user_can_download_file($id, $user_id)
{
$course_id = api_get_course_int_id();
$id = (int) $id;
$user_id = (int) $user_id;
$sql = "SELECT file_id
FROM ".Database::get_course_table(TABLE_DROPBOX_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 ".Database::get_course_table(TABLE_DROPBOX_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)
{
$id = (int) $id;
$course_id = api_get_course_int_id();
$sql = "SELECT file_id
FROM ".Database::get_course_table(TABLE_DROPBOX_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 ".Database::get_course_table(TABLE_DROPBOX_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 || $count > 0;
}
/**
* @return string language string (depending on the success or failure
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function store_feedback()
{
if (!is_numeric($_GET['id'])) {
return get_lang('FeedbackError');
}
$course_id = api_get_course_int_id();
if (empty($_POST['feedback'])) {
return get_lang('PleaseTypeText');
} else {
$table = Database::get_course_table(TABLE_DROPBOX_FEEDBACK);
$params = [
'c_id' => $course_id,
'file_id' => $_GET['id'],
'author_user_id' => api_get_user_id(),
'feedback' => $_POST['feedback'],
'feedback_date' => api_get_utc_datetime(),
'feedback_id' => 0,
];
$id = Database::insert($table, $params);
if ($id) {
$sql = "UPDATE $table SET feedback_id = iid WHERE iid = $id";
Database::query($sql);
}
return get_lang('DropboxFeedbackStored');
}
}
/**
* This function downloads all the files of the input array into one zip.
*
* @param array $fileList containing all the ids of the files that have to be downloaded
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @todo consider removing the check if the user has received or sent this file (zip download of a folder already sufficiently checks for this).
* @todo integrate some cleanup function that removes zip files that are older than 2 days
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
* @author Julio Montoya Addin c_id support
*
* @version march 2006
*/
function zip_download($fileList)
{
$_course = api_get_course_info();
$course_id = api_get_course_int_id();
$fileList = array_map('intval', $fileList);
// 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 ".Database::get_course_table(TABLE_DROPBOX_FILE)." file
INNER JOIN ".Database::get_course_table(TABLE_DROPBOX_PERSON)." person
ON (person.file_id=file.id AND file.c_id = $course_id AND person.c_id = $course_id)
INNER JOIN ".Database::get_course_table(TABLE_DROPBOX_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(', ', $fileList).") 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);
$files = [];
while ($row = Database::fetch_array($result)) {
$files[$row['filename']] = [
'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";
Session::write('dropbox_files_to_download', $files);
$zip = new PclZip($temp_zip_file);
foreach ($files as $value) {
$zip->add(
api_get_path(SYS_COURSE_PATH).$_course['path'].'/dropbox/'.$value['filename'],
PCLZIP_OPT_REMOVE_ALL_PATH,
PCLZIP_CB_PRE_ADD,
'my_pre_add_callback'
);
}
Session::erase('dropbox_files_to_download');
$name = 'dropbox-'.api_get_utc_datetime().'.zip';
$result = DocumentManager::file_send_for_download($temp_zip_file, true, $name);
if ($result === false) {
api_not_allowed(true);
}
@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 array $p_event a variable of PCLZip
* @param array $p_header a variable of PCLZip
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*
* @version march 2006
*/
function my_pre_add_callback($p_event, &$p_header)
{
$files = Session::read('dropbox_files_to_download');
$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 = [], $make_link = [])
{
$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 $value) {
// Adding the header.
if ($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()
{
$course_id = api_get_course_int_id();
$sql = "SELECT COUNT(feedback_id) AS total, file_id
FROM ".Database::get_course_table(TABLE_DROPBOX_FEEDBACK)."
WHERE c_id = $course_id
GROUP BY file_id";
$result = Database::query($sql);
$return = [];
while ($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 (array_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 $courseId 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 = null, $user_id = null)
{
// The default values of the parameters
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
if (empty($user_id)) {
$user_id = api_get_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 $table_last_access
WHERE
access_user_id = ".intval($user_id)." AND
c_id='".intval($courseId)."' AND
access_tool='".Database::escape_string($tool)."'
ORDER BY access_date DESC
LIMIT 1";
$result = Database::query($sql);
$row = Database::fetch_array($result);
return $row['access_date'];
}
/**
* Previously $dropbox_cnf['mailingIdBase'], returns a mailing ID to generate a mail ID.
*
* @return int
*/
function get_mail_id_base()
{
// false = no mailing functionality
//$dropbox_cnf['mailingIdBase'] = 10000000; // bigger than any user_id,
// allowing enough space for pseudo_ids as uploader_id, dest_user_id, user_id:
// mailing pseudo_id = dropbox_cnf('mailingIdBase') + mailing id
return 10000000;
}
Zerion Mini Shell 1.0