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ajax.php
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ajax.php
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<?php
require_once 'autoload.php';
$status_codes = [
"OK" => [0, "Success"],
"INVALID_DATA" => [1, "Wrong request data"],
"INVALID_SCOPE" => [2, "Wrong requested scope"],
"INVALID_METHOD" => [3, "Wrong requested method"],
"PASSWORD_NOT_SAME" => [4, "Different passwords"],
"REGISTER_ERROR" => [5, "Register error"],
"AUTH_ERROR" => [6, "Auth error: wrong username/password"],
"SECURITY_KEY_INVALID" => [7, "Security key invalid"],
"INVALID_ACTION" => [8, "Invalid action"],
"DB_ERROR" => [9, "Database error"],
"NO_AUTH" => [10, "User not authorized"],
"UNKNOWN_LIBRARY" => [11, "Unknown library"],
"UNKNOWN_TEST" => [12, "First - select the test in progress"],
"WRONG_OUTPUT" => [13, "Wrong output!"],
];
$data = file_get_contents('php://input');
$data = json_decode($data, true);
$json_response["status"] = $status_codes['INVALID_DATA'];
if(isset($data)) {
$json_response["status"] = $status_codes['OK'];
$secauth = new \Components\Auth\SecAuth($mysqli);
$auth = new \Components\Auth\Auth($mysqli, $salt['password'], $salt['sec_auth']);
$tests = new \Components\Tests\Tests($mysqli);
$progress = new \Components\Progress\Progress($mysqli, $tests);
$user = null;
if(!empty($_COOKIE['security_key']) && $secauthkey = $secauth->SearchKey($_COOKIE['security_key'])) {
$user = $auth->SearchUserByID($secauthkey->GetUserID());
}
if($data['scope'] == "auth") {
if($data['method'] == "register") {
$email = $data['email'];
$password = $data['password'];
$passwordRepeat = $data['passwordRepeat'];
if($password != $passwordRepeat) {
$json_response["status"] = $status_codes['PASSWORD_NOT_SAME'];
} else {
$registration = $auth->Register($email, $password, false);
if($registration) {
setcookie('security_key', $registration->GetKey(), time()+60*60*24*30); // valid cookie 30 days
} else {
$json_response["status"] = $status_codes['REGISTER_ERROR'];
}
}
} else if($data['method'] == "login") {
$email = $data['email'];
$password = $data['password'];
$authorization = $auth->Login($email, $password);
if($authorization) {
setcookie('security_key', $authorization->GetKey(), time()+60*60*24*30); // valid cookie 30 days
} else {
$json_response["status"] = $status_codes['AUTH_ERROR'];
}
} else if($data['method'] == "logout") {
$seckey = $data['security_key'];
$seckey = $secauth->SearchKey($seckey);
if(!$seckey || !$secauth->RemoveKey($seckey)) {
$json_response["status"] = $status_codes['SECURITY_KEY_INVALID'];
}
} else if($data['method'] == "is_valid") {
$seckey = $data['security_key'];
if(!$secauth->SearchKey($seckey)) {
$json_response["status"] = $status_codes['SECURITY_KEY_INVALID'];
}
} else {
$json_response["status"] = $status_codes['INVALID_METHOD'];
}
} else if($data['scope'] == "forms") {
if($data['method'] == "library_new") {
if(empty($data['action'])) {
if($form = FormLoader::LoadForm('form_new_library'))
$json_response["form"] = $form;
if($js = FormLoader::LoadJS('form_new_library'))
$json_response["js"] = $js;
} else if($data['action'] == "save") {
if(!empty($data['library_name'])) {
$library = new Library(0, $data['library_name'], []);
if(!$tests->CreateLibrary($library)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
}
} else if($data['method'] == "library_edit") {
$library = $tests->GetLibraryByID((int) $data['library_id']);
if($library) {
if(empty($data['action'])) {
if($form = FormLoader::LoadForm('form_edit_library')) {
$cgTasksInTable = new CGTasksInTable($tests->GetTasksByLibraryID($library->GetID()));
$form = preg_replace("/(%LIBRARY_ID%)/", $library->GetID(), $form);
$form = preg_replace("/(%LIBRARY_TITLE%)/", $library->GetTitle(), $form);
$form = preg_replace("/(%LIBRARY_TASKS%)/", $cgTasksInTable->GenerateHTML(), $form);
$json_response["form"] = $form;
}
if($js = FormLoader::LoadJS('form_edit_library'))
$json_response["js"] = $js;
} else if($data['action'] == "save") {
if(!empty($data['new_title'])) {
$library->SetTitle($data['new_title']);
if(!$tests->UpdateLibrary($library)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else if($data['action'] == "delete") {
if(!$tests->DeleteLibrary($library, true)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['INVALID_ACTION'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else if($data['method'] == "task_new") {
if(empty($data['action']) && !empty($data['library_id'])) {
$library = $tests->GetLibraryByID($data['library_id']);
if($form = FormLoader::LoadForm('form_new_task')) {
if($library) {
$form = preg_replace("/(%LIBRARY_ID%)/", $library->GetID(), $form);
}
$json_response["form"] = $form;
}
if($js = FormLoader::LoadJS('form_new_task'))
$json_response["js"] = $js;
} else if($data['action'] == "save") {
if(!empty($data['library_id']) && !empty($data['task_name']) && !empty($data['task_question']) && !empty($data['task_output'])) {
$library = $tests->GetLibraryByID($data['library_id']);
if($library) {
$task = new Task(
0,
$library->GetID(),
$data['task_name'],
$data['task_question'],
$data['task_output'],
2000
); // 2 sec max execute time
if (!$tests->CreateTask($task)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['UNKNOWN_LIBRARY'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else {
$json_response["status"] = $status_codes['INVALID_ACTION'];
}
} else if($data['method'] == "task_edit") {
$task = $tests->GetTaskByID((int) $data['task_id']);
if($task) {
if(empty($data['action'])) {
if($form = FormLoader::LoadForm('form_edit_task')) {
$form = preg_replace("/(%TASK_ID%)/", $task->GetID(), $form);
$form = preg_replace("/(%TASK_TITLE%)/", htmlspecialchars($task->GetTitle()), $form);
$form = preg_replace("/(%TASK_QUESTION%)/", htmlspecialchars($task->GetQuestion()), $form);
$form = preg_replace("/(%TASK_OUTPUT%)/", htmlspecialchars($task->GetExpectedOutput()), $form);
$json_response["form"] = $form;
}
if($js = FormLoader::LoadJS('form_edit_task'))
$json_response["js"] = $js;
} else if($data['action'] == "save") {
if(!empty($data['new_title'])) {
$task->SetTitle($data['new_title']);
$task->SetQuestion($data['new_question']);
$task->SetExpectedOutput($data['new_expected_output']);
if(!$tests->UpdateTask($task)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else if($data['action'] == "delete") {
if(!$tests->DeleteTask($task)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['INVALID_ACTION'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else if($data['method'] == "side_menu") {
$libraries = $tests->GetLibraries();
$json_response["form"] = (new CGSideMenuTeacher($libraries))->GenerateHTML();
} else {
$json_response["status"] = $status_codes['INVALID_METHOD'];
}
} else if($data['scope'] == "progress") {
if($data['method'] == "activate_library_tests") {
$library = $tests->GetLibraryByID((int) $data['library_id']);
if($library) {
if ($user) {
$json_response["dbg"]["lib"] = $library;
if ($progress->ActivateLibraryForUser($user, $library)) {
setcookie('selected_library', $library->GetID(), time()+60*60*24*30); // valid cookie 30 days
} else {
$json_response["status"] = $status_codes['NO_AUTH'];
}
} else {
$json_response["status"] = $status_codes['NO_AUTH'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else if($data['method'] == "get_current_task") {
if(!empty($_COOKIE['selected_library'])) {
$library = $tests->GetLibraryByID((int) $_COOKIE['selected_library']);
if($library) {
if ($user) {
$current_progress = $progress->GetForUserByLibrary($user, $library);
$library_tasks = $library->GetTasks();
$completed_tasks = $current_progress->GetCompletedTasks();
$current_task = $completed_tasks < count($library_tasks) ? $library_tasks[$completed_tasks] : null;
$json_response["task"] = $current_task;
} else {
$json_response["status"] = $status_codes['NO_AUTH'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else {
$json_response["status"] = $status_codes['UNKNOWN_TEST'];
}
} else if($data['method'] == "check_output") {
if(isset($data['runtime_output'])) {
if (!empty($_COOKIE['selected_library'])) {
$library = $tests->GetLibraryByID((int)$_COOKIE['selected_library']);
if ($library) {
if ($user) {
$current_progress = $progress->GetForUserByLibrary($user, $library);
$library_tasks = $library->GetTasks();
$completed_tasks = $current_progress->GetCompletedTasks();
$current_task = $completed_tasks < count($library_tasks) ? $library_tasks[$completed_tasks] : null;
if(gettype($data['runtime_output']) == "array"){
$data['runtime_output'] = join("\n", $data['runtime_output']);
}
$runtime_output = trim($data['runtime_output']);
if(!$current_task) {
$json_response["status"] = $status_codes['UNKNOWN_TEST'];
} else if($runtime_output == trim(htmlspecialchars_decode($current_task->GetExpectedOutput()))) {
if(!$progress->AnswerCorrect($user, $library)) {
$json_response["status"] = $status_codes['DB_ERROR'];
}
} else {
$json_response["status"] = $status_codes['WRONG_OUTPUT'];
}
} else {
$json_response["status"] = $status_codes['NO_AUTH'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else {
$json_response["status"] = $status_codes['UNKNOWN_TEST'];
}
} else {
$json_response["status"] = $status_codes['INVALID_DATA'];
}
} else {
$json_response["status"] = $status_codes['INVALID_METHOD'];
}
} else {
$json_response["status"] = $status_codes['INVALID_SCOPE'];
}
}
echo json_encode($json_response, JSON_UNESCAPED_UNICODE);