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Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/session/session_import.php

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<?php
/* For licensing terms, see /license.txt */
/**
* @package chamilo.admin
*/
$cidReset = true;
require_once __DIR__.'/../inc/global.inc.php';
$this_section = SECTION_PLATFORM_ADMIN;
api_protect_admin_script(true);
api_protect_limit_for_session_admin();
$form_sent = 0;
$tbl_user = Database::get_main_table(TABLE_MAIN_USER);
$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
$tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
$tbl_session_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
$tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
$tbl_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$tool_name = get_lang('ImportSessionListXMLCSV');
//$interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));
$interbreadcrumb[] = ['url' => 'session_list.php', 'name' => get_lang('SessionList')];
set_time_limit(0);
// Set this option to true to enforce strict purification for usenames.
$purification_option_for_usernames = false;
$inserted_in_course = [];
$warn = null;
if (isset($_POST['formSent']) && $_POST['formSent']) {
if (isset($_FILES['import_file']['tmp_name']) &&
!empty($_FILES['import_file']['tmp_name'])
) {
$form_sent = $_POST['formSent'];
$file_type = isset($_POST['file_type']) ? $_POST['file_type'] : null;
$send_mail = isset($_POST['sendMail']) && $_POST['sendMail'] ? 1 : 0;
$isOverwrite = isset($_POST['overwrite']) && $_POST['overwrite'] ? true : false;
$deleteUsersNotInList = isset($_POST['delete_users_not_in_list']) ? true : false;
$sessions = [];
$session_counter = 0;
if ($file_type == 'xml') {
// XML
// SimpleXML for PHP5 deals with various encodings, but how many they are, what are version issues, do we need to waste time with configuration options?
// For avoiding complications we go some sort of "PHP4 way" - we convert the input xml-file into UTF-8 before passing it to the parser.
// Instead of:
// $root = @simplexml_load_file($_FILES['import_file']['tmp_name']);
// we may use the following construct:
// $root = @simplexml_load_string(api_utf8_encode_xml(file_get_contents($_FILES['import_file']['tmp_name'])));
// To ease debugging let us use:
$content = file_get_contents($_FILES['import_file']['tmp_name']);
$content = api_utf8_encode_xml($content);
$root = @simplexml_load_string($content);
unset($content);
if (is_object($root)) {
if (count($root->Users->User) > 0) {
// Creating/updating users from <Sessions> <Users> base node.
foreach ($root->Users->User as $node_user) {
$username = $username_old = trim(api_utf8_decode($node_user->Username));
if (UserManager::is_username_available($username)) {
$password = api_utf8_decode($node_user->Password);
if (empty($password)) {
$password = api_generate_password();
}
switch ($node_user->Status) {
case 'student':
$status = 5;
break;
case 'teacher':
$status = 1;
break;
default:
$status = 5;
$error_message .= get_lang('StudentStatusWasGivenTo').' : '.$username.'<br />';
}
$result = UserManager::create_user(
api_utf8_decode($node_user->Firstname),
api_utf8_decode($node_user->Lastname),
$status,
api_utf8_decode($node_user->Email),
$username,
$password,
api_utf8_decode($node_user->OfficialCode),
null,
api_utf8_decode($node_user->Phone),
null,
PLATFORM_AUTH_SOURCE,
null,
1,
0,
null,
null,
$send_mail
);
} else {
$lastname = trim(api_utf8_decode($node_user->Lastname));
$firstname = trim(api_utf8_decode($node_user->Firstname));
$password = api_utf8_decode($node_user->Password);
$email = trim(api_utf8_decode($node_user->Email));
$official_code = trim(api_utf8_decode($node_user->OfficialCode));
$phone = trim(api_utf8_decode($node_user->Phone));
$status = trim(api_utf8_decode($node_user->Status));
switch ($status) {
case 'student':
$status = 5;
break;
case 'teacher':
$status = 1;
break;
default:
$status = 5;
$error_message .= get_lang('StudentStatusWasGivenTo').' : '.$username.'<br />';
}
$userId = UserManager::get_user_id_from_username($username);
if (!empty($userId)) {
UserManager::update_user(
$userId,
$firstname,
$lastname,
$username,
$password,
null,
$email,
$status,
$official_code,
$phone,
null, //$picture_uri,
null, //$expiration_date,
null, //$active,
null, //$creator_id = null,
0,
null, //$extra = null,
null, //$language = 'english',
null, //$encrypt_method = '',
false,
0 //$reset_password = 0
);
}
}
}
}
// Creating courses from <Sessions> <Courses> base node.
if (count($root->Courses->Course) > 0) {
foreach ($root->Courses->Course as $courseNode) {
$params = [];
if (empty($courseNode->CourseTitle)) {
$params['title'] = api_utf8_decode($courseNode->CourseCode);
} else {
$params['title'] = api_utf8_decode($courseNode->CourseTitle);
}
$params['wanted_code'] = api_utf8_decode($courseNode->CourseCode);
$params['tutor_name'] = null;
$params['course_category'] = null;
$params['course_language'] = api_utf8_decode($courseNode->CourseLanguage);
$params['user_id'] = api_get_user_id();
// Looking up for the teacher.
$username = trim(api_utf8_decode($courseNode->CourseTeacher));
$sql = "SELECT user_id, lastname, firstname FROM $tbl_user WHERE username='$username'";
$rs = Database::query($sql);
list($user_id, $lastname, $firstname) = Database::fetch_array($rs);
$params['teachers'] = $user_id;
CourseManager::create_course($params);
}
}
// Creating sessions from <Sessions> base node.
if (count($root->Session) > 0) {
foreach ($root->Session as $node_session) {
$course_counter = 0;
$user_counter = 0;
$session_name = trim(api_utf8_decode($node_session->SessionName));
$coach = UserManager::purify_username(
api_utf8_decode($node_session->Coach),
$purification_option_for_usernames
);
if (!empty($coach)) {
$coach_id = UserManager::get_user_id_from_username($coach);
if ($coach_id === false) {
$error_message .= get_lang('UserDoesNotExist').' : '.$coach.'<br />';
// Forcing the coach id if user does not exist.
$coach_id = api_get_user_id();
}
} else {
// Forcing the coach id.
$coach_id = api_get_user_id();
}
// Just in case - encoding conversion.
$date_start = trim(api_utf8_decode($node_session->DateStart));
if (!empty($date_start)) {
list($year_start, $month_start, $day_start) = explode('/', $date_start);
if (empty($year_start) || empty($month_start) || empty($day_start)) {
$error_message .= get_lang('WrongDate').' : '.$date_start.'<br />';
break;
} else {
$time_start = mktime(0, 0, 0, $month_start, $day_start, $year_start);
}
$date_end = trim(api_utf8_decode($node_session->DateEnd));
if (!empty($date_start)) {
list($year_end, $month_end, $day_end) = explode('/', $date_end);
if (empty($year_end) || empty($month_end) || empty($day_end)) {
$error_message .= get_lang('Error').' : '.$date_end.'<br />';
break;
} else {
$time_end = mktime(0, 0, 0, $month_end, $day_end, $year_end);
}
}
if ($time_end - $time_start < 0) {
$error_message .= get_lang('StartDateShouldBeBeforeEndDate').' : '.$date_end.'<br />';
}
}
$visibility = trim(api_utf8_decode($node_session->Visibility));
$session_category_id = trim(api_utf8_decode($node_session->SessionCategory));
if (!$updatesession) {
// Always create a session.
$unique_name = false; // This MUST be initializead.
$i = 0;
// Change session name, verify that session doesn't exist.
while (!$unique_name) {
if ($i > 1) {
$suffix = ' - '.$i;
}
$sql = 'SELECT 1 FROM '.$tbl_session.'
WHERE name="'.Database::escape_string($session_name.$suffix).'"';
$rs = Database::query($sql);
if (Database::result($rs, 0, 0)) {
$i++;
} else {
$unique_name = true;
$session_name .= $suffix;
}
}
// Creating the session.
$sql_session = "INSERT IGNORE INTO $tbl_session SET
name = '".Database::escape_string($session_name)."',
id_coach = '$coach_id',
access_start_date = '$date_start',
access_end_date = '$date_end',
visibility = '$visibility',
session_category_id = '$session_category_id',
session_admin_id=".intval($_user['user_id']);
$rs_session = Database::query($sql_session);
$session_id = Database::insert_id();
$session_counter++;
} else {
// Update the session if it is needed.
$my_session_result = SessionManager::get_session_by_name($session_name);
if ($my_session_result === false) {
// Creating the session.
$sql_session = "INSERT IGNORE INTO $tbl_session SET
name = '".Database::escape_string($session_name)."',
id_coach = '$coach_id',
access_start_date = '$date_start',
access_end_date = '$date_end',
visibility = '$visibility',
session_category_id = '$session_category_id',
session_admin_id=".intval($_user['user_id']);
$rs_session = Database::query($sql_session);
$session_id = Database::insert_id();
$session_counter++;
} else {
// if the session already exists - update it.
$sql_session = "UPDATE $tbl_session SET
id_coach = '$coach_id',
access_start_date = '$date_start',
access_end_date = '$date_end',
visibility = '$visibility',
session_category_id = '$session_category_id'
WHERE name = '$session_name'";
$rs_session = Database::query($sql_session);
$session_id = Database::query("SELECT id FROM $tbl_session WHERE name='$session_name'");
list($session_id) = Database::fetch_array($session_id);
Database::query("DELETE FROM $tbl_session_user WHERE session_id ='$session_id'");
Database::query("DELETE FROM $tbl_session_course WHERE session_id='$session_id'");
Database::query("DELETE FROM $tbl_session_course_user WHERE session_id='$session_id'");
}
}
// Associate the session with access_url.
if (api_is_multiple_url_enabled()) {
$access_url_id = api_get_current_access_url_id();
UrlManager::add_session_to_url($session_id, $access_url_id);
} else {
// We fill by default the access_url_rel_session table.
UrlManager::add_session_to_url($session_id, 1);
}
// Adding users to the new session.
foreach ($node_session->User as $node_user) {
$username = UserManager::purify_username(api_utf8_decode($node_user), $purification_option_for_usernames);
$user_id = UserManager::get_user_id_from_username($username);
if ($user_id !== false) {
$sql = "INSERT IGNORE INTO $tbl_session_user SET
user_id ='$user_id',
session_id = '$session_id',
registered_at = '".api_get_utc_datetime()."'";
$rs_user = Database::query($sql);
$user_counter++;
}
}
// Adding courses to a session.
foreach ($node_session->Course as $node_course) {
$course_code = Database::escape_string(trim(api_utf8_decode($node_course->CourseCode)));
// Verify that the course pointed by the course code node exists.
if (CourseManager::course_exists($course_code)) {
// If the course exists we continue.
$course_info = CourseManager::get_course_information($course_code);
$courseId = $course_info['real_id'];
$session_course_relation = SessionManager::relation_session_course_exist($session_id, $courseId);
if (!$session_course_relation) {
$sql_course = "INSERT INTO $tbl_session_course SET
c_id = $courseId,
session_id = $session_id";
$rs_course = Database::query($sql_course);
SessionManager::installCourse($id_session, $courseId);
}
$course_coaches = explode(',', $node_course->Coach);
// Adding coachs to session course user
foreach ($course_coaches as $course_coach) {
$coach_id = UserManager::purify_username(api_utf8_decode($course_coach), $purification_option_for_usernames);
$coach_id = UserManager::get_user_id_from_username($course_coach);
if ($coach_id !== false) {
$sql = "INSERT IGNORE INTO $tbl_session_course_user SET
user_id='$coach_id',
c_id = '$courseId',
session_id = '$session_id',
status = 2 ";
$rs_coachs = Database::query($sql);
} else {
$error_message .= get_lang('UserDoesNotExist').' : '.$user.'<br />';
}
}
// Adding users.
$course_counter++;
$users_in_course_counter = 0;
foreach ($node_course->User as $node_user) {
$username = UserManager::purify_username(api_utf8_decode($node_user), $purification_option_for_usernames);
$user_id = UserManager::get_user_id_from_username($username);
if ($user_id !== false) {
// Adding to session_rel_user table.
$sql = "INSERT IGNORE INTO $tbl_session_user SET
user_id ='$user_id',
session_id = '$session_id',
registered_at = '".api_get_utc_datetime()."'";
$rs_user = Database::query($sql);
$user_counter++;
// Adding to session_rel_user_rel_course table.
$sql = "INSERT IGNORE INTO $tbl_session_course_user SET
user_id = '$user_id',
c_id = '$courseId',
session_id = '$session_id'";
$rs_users = Database::query($sql);
$users_in_course_counter++;
} else {
$error_message .= get_lang('UserDoesNotExist').' : '.$username.'<br />';
}
}
$sql = "UPDATE $tbl_session_course SET nbr_users='$users_in_course_counter' WHERE c_id='$courseId'";
Database::query($sql);
$inserted_in_course[$course_code] = $course_info['title'];
}
}
Database::query("UPDATE $tbl_session SET nbr_users='$user_counter', nbr_courses='$course_counter' WHERE id='$session_id'");
}
}
if (empty($root->Users->User) && empty($root->Courses->Course) && empty($root->Session)) {
$error_message = get_lang('NoNeededData');
}
} else {
$error_message .= get_lang('XMLNotValid');
}
} else {
// CSV
$updateCourseCoaches = isset($_POST['update_course_coaches']) ? true : false;
$addOriginalCourseTeachersAsCourseSessionCoaches = isset($_POST['add_me_as_coach']) ? true : false;
$result = SessionManager::importCSV(
$_FILES['import_file']['tmp_name'],
$isOverwrite,
api_get_user_id(),
null,
[],
null,
null,
null,
1,
[],
$deleteUsersNotInList,
$updateCourseCoaches,
false,
$addOriginalCourseTeachersAsCourseSessionCoaches,
false
);
$sessionList = $result['session_list'];
$error_message = $result['error_message'];
$session_counter = $result['session_counter'];
}
if (!empty($error_message)) {
$error_message = get_lang('ButProblemsOccured').' :<br />'.$error_message;
}
if (count($inserted_in_course) > 1) {
$warn = get_lang('SeveralCoursesSubscribedToSessionBecauseOfSameVisualCode').': ';
foreach ($inserted_in_course as $code => $title) {
$warn .= ' '.$title.' ('.$code.'),';
}
$warn = substr($warn, 0, -1);
}
if ($session_counter == 1) {
if ($file_type == 'csv') {
$session_id = current($sessionList);
}
Display::addFlash(Display::return_message($warn));
header('Location: resume_session.php?id_session='.$session_id);
exit;
} else {
Display::addFlash(Display::return_message(get_lang('FileImported').' '.$error_message));
header('Location: session_list.php');
exit;
}
} else {
$error_message = get_lang('NoInputFile');
}
}
// Display the header.
Display::display_header($tool_name);
if (count($inserted_in_course) > 1) {
$msg = get_lang('SeveralCoursesSubscribedToSessionBecauseOfSameVisualCode').': ';
foreach ($inserted_in_course as $code => $title) {
$msg .= ' '.$title.' ('.$title.'),';
}
$msg = substr($msg, 0, -1);
echo Display::return_message($msg, 'warning');
}
echo '<div class="actions">';
echo '<a href="../session/session_list.php">'.
Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('PlatformAdmin'), '', ICON_SIZE_MEDIUM).'</a>';
echo '</div>';
if (!empty($error_message)) {
echo Display::return_message($error_message, 'normal', false);
}
$form = new FormValidator('import_sessions', 'post', api_get_self(), null, ['enctype' => 'multipart/form-data']);
$form->addElement('hidden', 'formSent', 1);
$form->addElement('file', 'import_file', get_lang('ImportFileLocation'));
$form->addElement(
'radio',
'file_type',
[
get_lang('FileType'),
Display::url(
get_lang('ExampleCSVFile'),
api_get_path(WEB_CODE_PATH).'admin/example_session.csv',
['target' => '_blank', 'download' => null]
),
],
'CSV',
'csv'
);
$form->addElement(
'radio',
'file_type',
[
null,
Display::url(
get_lang('ExampleXMLFile'),
api_get_path(WEB_CODE_PATH).'admin/example_session.xml',
['target' => '_blank', 'download' => null]
),
],
'XML',
'xml'
);
$form->addElement('checkbox', 'overwrite', null, get_lang('IfSessionExistsUpdate'));
$form->addElement('checkbox', 'delete_users_not_in_list', null, get_lang('DeleteUsersNotInList'));
$form->addElement('checkbox', 'update_course_coaches', null, get_lang('CleanAndUpdateCourseCoaches'));
$form->addElement('checkbox', 'add_me_as_coach', null, get_lang('AddMeAsCoach'));
$form->addElement('checkbox', 'sendMail', null, get_lang('SendMailToUsers'));
$form->addButtonImport(get_lang('ImportSession'));
$defaults = ['sendMail' => 'true', 'file_type' => 'csv'];
$options = api_get_configuration_value('session_import_settings');
if (!empty($options) && isset($options['options'])) {
if (isset($options['options']['session_exists_default_option'])) {
$defaults['overwrite'] = $options['options']['session_exists_default_option'];
}
if (isset($options['options']['send_mail_default_option'])) {
$defaults['sendMail'] = $options['options']['send_mail_default_option'];
}
}
$form->setDefaults($defaults);
Display::return_message(get_lang('TheXMLImportLetYouAddMoreInfoAndCreateResources'));
$form->display();
?>
<p><?php echo get_lang('CSVMustLookLike').' ('.get_lang('MandatoryFields').')'; ?> :</p>
<pre>
<strong>SessionName</strong>;Coach;<strong>DateStart</strong>;<strong>DateEnd</strong>;Users;Courses;VisibilityAfterExpiration;DisplayStartDate;DisplayEndDate;CoachStartDate;CoachEndDate;Classes
<strong>Example 1</strong>;username;<strong>yyyy/mm/dd;yyyy/mm/dd</strong>;username1|username2;course1[coach1][username1,...]|course2[coach1][username1,...];read_only;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;class1|class2
<strong>Example 2</strong>;username;<strong>yyyy/mm/dd;yyyy/mm/dd</strong>;username1|username2;course1[coach1][username1,...]|course2[coach1][username1,...];accessible;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;class3|class4
<strong>Example 3</strong>;username;<strong>yyyy/mm/dd;yyyy/mm/dd</strong>;username1|username2;course1[coach1][username1,...]|course2[coach1][username1,...];not_accessible;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;yyyy/mm/dd;class5|class6
</pre>
<p><?php echo get_lang('XMLMustLookLike').' ('.get_lang('MandatoryFields').')'; ?> :</p>
<pre>
&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
&lt;Sessions&gt;
&lt;Users&gt;
&lt;User&gt;
&lt;Username&gt;<strong>username1</strong>&lt;/Username&gt;
&lt;Lastname&gt;xxx&lt;/Lastname&gt;
&lt;Firstname&gt;xxx&lt;/Firstname&gt;
&lt;Password&gt;xxx&lt;/Password&gt;
&lt;Email&gt;xxx@xx.xx&lt;/Email&gt;
&lt;OfficialCode&gt;xxx&lt;/OfficialCode&gt;
&lt;Phone&gt;xxx&lt;/Phone&gt;
&lt;Status&gt;student|teacher&lt;/Status&gt;
&lt;/User&gt;
&lt;/Users&gt;
&lt;Courses&gt;
&lt;Course&gt;
&lt;CourseCode&gt;<strong>xxx</strong>&lt;/CourseCode&gt;
&lt;CourseTeacher&gt;<strong>teacher_username</strong>&lt;/CourseTeacher&gt;
&lt;CourseLanguage&gt;xxx&lt;/CourseLanguage&gt;
&lt;CourseTitle&gt;xxx&lt;/CourseTitle&gt;
&lt;CourseDescription&gt;xxx&lt;/CourseDescription&gt;
&lt;/Course&gt;
&lt;/Courses&gt;
&lt;Session&gt;
<strong>&lt;SessionName&gt;xxx&lt;/SessionName&gt;</strong>
&lt;Coach&gt;xxx&lt;/Coach&gt;
<strong>&lt;DateStart&gt;yyyy/mm/dd&lt;/DateStart&gt;</strong>
<strong>&lt;DateEnd&gt;yyyy/mm/dd&lt;/DateEnd&gt;</strong>
&lt;User&gt;xxx&lt;/User&gt;
&lt;User&gt;xxx&lt;/User&gt;
&lt;Course&gt;
&lt;CourseCode&gt;coursecode1&lt;/CourseCode&gt;
&lt;Coach&gt;coach1&lt;/Coach&gt;
&lt;User&gt;username1&lt;/User&gt;
&lt;User&gt;username2&lt;/User&gt;
&lt;/Course&gt;
&lt;/Session&gt;
&lt;Session&gt;
<strong>&lt;SessionName&gt;xxx&lt;/SessionName&gt;</strong>
&lt;Coach&gt;xxx&lt;/Coach&gt;
<strong>&lt;DateStart&gt;xxx&lt;/DateStart&gt;</strong>
<strong>&lt;DateEnd&gt;xxx&lt;/DateEnd&gt;</strong>
&lt;User&gt;xxx&lt;/User&gt;
&lt;User&gt;xxx&lt;/User&gt;
&lt;Course&gt;
&lt;CourseCode&gt;coursecode1&lt;/CourseCode&gt;
&lt;Coach&gt;coach1&lt;/Coach&gt;
&lt;User&gt;username1&lt;/User&gt;
&lt;User&gt;username2&lt;/User&gt;
&lt;/Course&gt;
&lt;/Session&gt;
&lt;/Sessions&gt;
</pre>
<?php
Display::display_footer();