145 lines
5.3 KiB
PHP
145 lines
5.3 KiB
PHP
<?php
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// Must be first — ensures any fatal/exception outputs a JSON body, not HTML.
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// Errors still go to the server log; display is suppressed so they cannot
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// corrupt the JSON response body.
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ini_set('display_errors', 0);
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ini_set('log_errors', 1);
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header('Content-Type: application/json; charset=utf-8');
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require_once __DIR__."/../../config.php";
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require_once __DIR__."/../../dbconn.php";
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require_once __DIR__."/db_helpers.php";
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if (!function_exists('require_role')) {
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function require_role(string $user_role, array $allowed): void {
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if (!in_array($user_role, $allowed, true)) {
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http_response_code(403);
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exit(json_encode(['success' => 0, 'message' => 'Access denied.']));
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}
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}
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}
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if(!empty($_SESSION["login_company_id"])){
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// CSRF Validation — add right at the top of the logged-in block
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if($_SERVER['REQUEST_METHOD'] === 'POST'){
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$csrf_token = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
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if(empty($csrf_token) || $csrf_token !== $_SESSION['csrf_token']){
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http_response_code(403);
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exit(json_encode(["message" => "Invalid request"]));
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}
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}
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// validate otp
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$sql = "SELECT `password`
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FROM user
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WHERE user_id = :company_id";
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$sth = $pdo1->prepare($sql);
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$sth->execute([
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":company_id" => $_SESSION["login_user_id"]
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]);
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db_check($sth, $answer);
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$password = $sth->fetchColumn();
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/** Generate OTP */
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function generateOTP($sercet_key, $time_step = 180, $length = 6){
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$counter = floor($_SESSION["otpTime"] / $time_step);
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$data = pack("NN", 0, $counter);
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$hash = hash_hmac('sha1', $data, $sercet_key, true);
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$offset = ord(substr($hash, -1)) & 0x0F;
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$value = unpack("N", substr($hash, $offset, 4));
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$otp = ($value[1] & 0x7FFFFFFF) % pow(10, $length);
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return str_pad(strval($otp), $length, '0', STR_PAD_LEFT);
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}
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$otp = generateOTP($password);
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if( $_SESSION["otp"]!=$otp ){
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$answer["message"] = "Your password has been reset, Please logout and login again.";
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exit(json_encode($answer));
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}
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// check company accessibily
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$sql = "SELECT * FROM company_map_user WHERE company_id = :login_company_id and user_id = :login_user_id";
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$sth = $pdo1->prepare($sql);
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$sth->execute([
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":login_company_id" => $_SESSION["login_company_id"],
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":login_user_id" => $_SESSION["login_user_id"]
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]);
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db_check($sth, $answer);
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$map = $sth->fetchAll(PDO::FETCH_ASSOC);
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if( count($map)==0 ){
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$answer["message"] = "Your accessibility to this company has been removed.";
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exit(json_encode($answer));
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}
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$user_role = $map[0]['role'] ?? 'viewer';
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$_SESSION['login_role'] = $user_role;
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// Single-session enforcement: if a session_token was issued at login, verify
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// it still matches the DB. A mismatch means a newer login has taken over.
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if (!empty($_SESSION['session_token'])) {
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$sth = $pdo1->prepare("SELECT session_token FROM user WHERE user_id = :uid LIMIT 1");
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$sth->execute([':uid' => $_SESSION['login_user_id']]);
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$db_token = $sth->fetchColumn();
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if ($db_token !== $_SESSION['session_token']) {
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session_destroy();
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http_response_code(401);
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exit(json_encode(['success' => 0, 'message' => 'You have been signed in from another device.', 'code' => 'signed_elsewhere']));
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}
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// Keep session_last_seen fresh (throttled: at most one DB write per 60 s).
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// login_confirm.php reads this to detect when PHP GC has expired the session.
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if (!isset($_SESSION['_last_seen_updated']) || (time() - $_SESSION['_last_seen_updated']) > 60) {
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$pdo1->prepare("UPDATE user SET session_last_seen = NOW() WHERE user_id = :uid AND session_token = :tok")
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->execute([':uid' => $_SESSION['login_user_id'], ':tok' => $_SESSION['session_token']]);
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$_SESSION['_last_seen_updated'] = time();
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}
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}
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}
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// Fail closed — reject any request that arrives without an authenticated session
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// unless the engine explicitly declared itself a pre-auth route.
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if (empty($_SESSION['login_company_id']) && !defined('UNAUTHENTICATED_ROUTE')) {
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http_response_code(401);
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exit(json_encode(['success' => 0, 'message' => 'Authentication required.']));
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}
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// set up ANSWER
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$answer = array("success"=>0, "message"=>"");
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if (isset($_POST['json'])) {
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// Old Method: Data is wrapped in a JSON string
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$data = json_decode($_POST['json'], true);
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} else if (isset($_POST['otp'])) {
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// New Method: Data is sent directly (FormData)
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// We check for 'otp' because every request should have one
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$data = $_POST;
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} else {
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// Truly no data received
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$answer["message"] = "Request denied: No valid JSON payload or Form Data detected.";
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exit(json_encode($answer));
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}
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// incase logging in
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if(!empty($_SESSION["login_company_id"])){
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$company_id = (int)$_SESSION["login_company_id"];
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$user_id = (int)$_SESSION["login_user_id"];
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$user_role = $_SESSION['login_role'] ?? ($user_role ?? 'viewer');
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$uuid = bin2hex(random_bytes(16));
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// create json for table logging
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$logging = array(
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"user_id" => $user_id,
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"data" => json_encode($data),
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"dt" => date('Y-m-d H:i:s'),
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"login" => date('Y-m-d H:i:s', $_SESSION["otpTime"])
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);
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}
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?>
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