*/
require_once __DIR__.'/../inc/global.inc.php';
$current_course_tool = TOOL_COURSE_MAINTENANCE;
api_protect_course_script(true);
// Check access rights (only teachers are allowed here)
if (!api_is_allowed_to_edit()) {
api_not_allowed(true);
}
api_set_more_memory_and_time_limits();
$isPlatformAdmin = api_is_platform_admin();
// Section for the tabs
$this_section = SECTION_COURSES;
// Breadcrumbs
$interbreadcrumb[] = [
'url' => '../course_info/maintenance.php',
'name' => get_lang('Backup'),
];
// Displaying the header
$nameTools = get_lang('Import backup');
Display::display_header($nameTools);
// Display the tool title
echo Display::page_header($nameTools);
$action = isset($_POST['action']) ? $_POST['action'] : '';
$importOption = isset($_POST['import_option']) ? $_POST['import_option'] : '';
/* MAIN CODE */
$filename = '';
if (Security::check_token('post') && ('course_select_form' === $action || 'full_backup' === $importOption)) {
// Clear token
Security::clear_token();
$error = false;
if ('course_select_form' === $action) {
// Partial backup here we recover the documents posted
$filename = Session::read('backup_file');
$course = CourseArchiver::readCourse($filename, false);
$course = CourseSelectForm::get_posted_course(null, null, null, $course);
} else {
if ('server' === $_POST['backup_type']) {
$filename = $_POST['backup_server'];
$delete_file = false;
} else {
if (0 == $_FILES['backup']['error']) {
$filename = CourseArchiver::importUploadedFile($_FILES['backup']['tmp_name']);
if (false === $filename) {
$error = true;
} else {
$delete_file = false;
}
Session::write('backup_file', $filename);
} else {
$error = true;
}
}
if (!$error) {
// Full backup
$course = CourseArchiver::readCourse($filename, $delete_file);
}
}
if (!$error && is_object($course) && $course->has_resources()) {
$cr = new CourseRestorer($course);
$cr->set_file_option($_POST['same_file_name_option']);
$cr->restore();
echo Display::return_message(get_lang('Import finished'));
echo ''.
get_lang('Course home').'';
} else {
if (!$error) {
echo Display::return_message(get_lang('There are no resources in backup file'), 'warning');
echo ''.get_lang('Try again').'';
} elseif (false === $filename) {
echo Display::return_message(
get_lang(
'The app/cache/ directory, used by this tool, is not writeable. Please contact your platform administrator.'
),
'error'
);
echo ''.get_lang('Try again').'';
} else {
if ('' == $filename) {
echo Display::return_message(get_lang('Select a backup file'), 'error');
echo ''.get_lang('Try again').'';
} else {
echo Display::return_message(get_lang('Upload failed, please check maximum file size limits and folder rights.'), 'error');
echo ''.get_lang('Try again').'';
}
}
}
CourseArchiver::cleanBackupDir();
} elseif (Security::check_token('post') && 'select_items' === $importOption) {
// Clear token
Security::clear_token();
if ('server' === $_POST['backup_type']) {
$filename = $_POST['backup_server'];
$delete_file = false;
} else {
$filename = CourseArchiver::importUploadedFile($_FILES['backup']['tmp_name']);
$delete_file = false;
Session::write('backup_file', $filename);
}
$course = CourseArchiver::readCourse($filename, $delete_file);
if ($course->has_resources() && false !== $filename) {
$hiddenFields['same_file_name_option'] = $_POST['same_file_name_option'];
// Add token to Course select form
$hiddenFields['sec_token'] = Security::get_token();
CourseSelectForm::display_form($course, $hiddenFields);
} elseif (false === $filename) {
echo Display::return_message(get_lang('The app/cache/ directory, used by this tool, is not writeable. Please contact your platform administrator.'), 'error');
echo ''.get_lang('Try again').'';
} else {
echo Display::return_message(get_lang('There are no resources in backup file'), 'warning');
echo ''.get_lang('Try again').'';
}
} else {
$user = api_get_user_info();
$backups = CourseArchiver::getAvailableBackups($isPlatformAdmin ? null : $user['user_id']);
$backups_available = count($backups) > 0;
$form = new FormValidator(
'import_backup_form',
'post',
api_get_path(WEB_CODE_PATH).'course_copy/import_backup.php?'.api_get_cidreq(),
'',
['enctype' => 'multipart/form-data']
);
$form->addElement('header', get_lang('Select a backup file'));
$renderer = $form->defaultRenderer();
$renderer->setCustomElementTemplate('{element}
');
$form->addElement('hidden', 'action', 'restore_backup');
$form->addElement(
'radio',
'backup_type',
'',
get_lang('local file'),
'local',
'id="bt_local" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=true;document.import_backup_form.backup.disabled=false;"'
);
$form->addElement('file', 'backup', '', 'style="margin-left: 50px;"');
$form->addElement('html', '
');
if ($backups_available) {
$form->addElement(
'radio',
'backup_type',
'',
get_lang('server file'),
'server',
'id="bt_server" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=false;document.import_backup_form.backup.disabled=true;"'
);
$options['null'] = '-';
foreach ($backups as $index => $backup) {
$options[$backup['file']] = $backup['course_code'].' ('.$backup['date'].')';
}
$form->addSelect(
'backup_server',
'',
$options
);
$form->addElement(
'html',
''
);
} else {
$form->addElement(
'radio',
'',
'',
''.get_lang('No backup is available').'',
'',
'disabled="true"'
);
}
$form->addElement('html', '
');
$form->addElement(
'radio',
'import_option',
'',
get_lang('Import full backup'),
'full_backup',
'id="import_option_1" class="checkbox"'
);
$form->addElement(
'radio',
'import_option',
'',
get_lang('Let me select learning objects'),
'select_items',
'id="import_option_2" class="checkbox"'
);
$form->addElement('html', '
');
$form->addElement('html', get_lang('What should be done with imported files with the same file name as existing files?'));
$form->addElement('html', '
');
$form->addElement(
'radio',
'same_file_name_option',
'',
get_lang('What should be done with imported files with the same file name as existing files?Skip'),
FILE_SKIP,
'id="same_file_name_option_1" class="checkbox"'
);
$form->addElement(
'radio',
'same_file_name_option',
'',
get_lang('What should be done with imported files with the same file name as existing files?Rename'),
FILE_RENAME,
'id="same_file_name_option_2" class="checkbox"'
);
$form->addElement(
'radio',
'same_file_name_option',
'',
get_lang('What should be done with imported files with the same file name as existing files?Overwrite'),
FILE_OVERWRITE,
'id="same_file_name_option_3" class="checkbox"'
);
$form->addElement('html', '
');
$form->addButtonImport(get_lang('Import backup'));
$values['backup_type'] = 'local';
$values['import_option'] = 'full_backup';
$values['same_file_name_option'] = FILE_OVERWRITE;
$form->setDefaults($values);
$form->addProgress();
// When progress bar appears we have to hide the title "Select backup file".
$form->updateAttributes([
'onsubmit' => str_replace(
'javascript: ',
'javascript: page_title = getElementById(\'page_title\'); if (page_title) { setTimeout(\'page_title.style.display = \\\'none\\\';\', 2000); } ',
$form->getAttribute('onsubmit')
),
]);
// Add Security token
$token = Security::get_token();
$form->addElement('hidden', 'sec_token');
$form->setConstants(['sec_token' => $token]);
$form->display();
}
if (!isset($_POST['action'])) {
Session::erase('backup_file');
}
Display::display_footer();