diff --git a/app/assets/js/custom.js b/app/assets/js/custom.js
index 29a71ba..1ae5dfa 100644
--- a/app/assets/js/custom.js
+++ b/app/assets/js/custom.js
@@ -821,6 +821,14 @@ function ajax_request(options) {
throw xhr;
}
+ // Session displaced — another login took over this account
+ if (xhr?.status === 401 && xhr?.responseJSON?.code === 'signed_elsewhere') {
+ bootbox.alert('Signed in from another device.
Your session has been ended because this account was signed in elsewhere.', function() {
+ window.location.href = server_url + 'index.php';
+ });
+ return;
+ }
+
// File / payload too large (nginx 413)
if (xhr?.status === 413) {
bootbox.alert('The file you selected is too large. Please use an image under 2 MB and try again.');
diff --git a/app/assets/utils/classes/ReportManager.php b/app/assets/utils/classes/ReportManager.php
index 9018adb..3ddef2a 100644
--- a/app/assets/utils/classes/ReportManager.php
+++ b/app/assets/utils/classes/ReportManager.php
@@ -44,6 +44,7 @@ class ReportManager
return 'td_stock_' . $warehouse_id;
}
+
private function resolveWarehouseTable(int $warehouse_id): ?string
{
$sth = $this->pdo->prepare(
diff --git a/app/assets/utils/classes/StockManager.php b/app/assets/utils/classes/StockManager.php
index 6a32aa2..82b3997 100644
--- a/app/assets/utils/classes/StockManager.php
+++ b/app/assets/utils/classes/StockManager.php
@@ -292,10 +292,10 @@ class StockManager {
$this->pdo->prepare(
"INSERT INTO `$table`
(uuid, company_id, `date`, product_sku, `in`, price, zone, aisle, rack,
- contact_id, `description`, `log`, `type`, lot_number, serial_number, status)
+ contact_id, `description`, `log`, `type`, lot_number, serial_number, status, updated_at)
VALUES
(:uuid, :company_id, :date, :product_sku, :quantity, :price, :zone, :aisle, :rack,
- :contact_id, :description, :log, 'in', :lot_number, :serial_number, 0)"
+ :contact_id, :description, :log, 'in', :lot_number, :serial_number, 0, NOW())"
)->execute([
':uuid' => $uuid,
':company_id' => $this->company_id,
@@ -427,10 +427,10 @@ class StockManager {
$this->pdo->prepare(
"INSERT INTO `$table`
(uuid, company_id, `date`, product_sku, `out`, zone, aisle, rack,
- contact_id, `description`, `log`, `type`, ref_id, lot_number, serial_number, status)
+ contact_id, `description`, `log`, `type`, ref_id, lot_number, serial_number, status, updated_at)
VALUES
(:uuid, :company_id, :date, :product_sku, :quantity, :zone, :aisle, :rack,
- :contact_id, :description, :log, 'out', :ref_id, :lot_number, :serial_number, 0)"
+ :contact_id, :description, :log, 'out', :ref_id, :lot_number, :serial_number, 0, NOW())"
)->execute([
':uuid' => $uuid,
':company_id' => $this->company_id,
@@ -604,11 +604,11 @@ class StockManager {
"INSERT INTO `$from_table`
(uuid, company_id, `date`, product_sku, `out`,
ref_warehouse, zone, aisle, rack,
- contact_id, `description`, `log`, `type`, lot_number, serial_number, status)
+ contact_id, `description`, `log`, `type`, lot_number, serial_number, status, updated_at)
VALUES
(:uuid, :company_id, :date, :product_sku, :quantity,
:ref_warehouse, :zone, :aisle, :rack,
- :contact_id, :description, :log, 'transfer', :lot_number, :serial_number, 0)"
+ :contact_id, :description, :log, 'transfer', :lot_number, :serial_number, 0, NOW())"
)->execute([
':uuid' => $uuid,
':company_id' => $this->company_id,
@@ -632,11 +632,11 @@ class StockManager {
"INSERT INTO `$to_table`
(uuid, company_id, `date`, product_sku, `in`,
ref_warehouse, ref_id, zone, aisle, rack,
- contact_id, `description`, `log`, `type`, lot_number, serial_number, status)
+ contact_id, `description`, `log`, `type`, lot_number, serial_number, status, updated_at)
VALUES
(:uuid, :company_id, :date, :product_sku, :quantity,
:ref_warehouse, :ref_id, :zone, :aisle, :rack,
- :contact_id, :description, :log, 'transfer', :lot_number, :serial_number, 0)"
+ :contact_id, :description, :log, 'transfer', :lot_number, :serial_number, 0, NOW())"
)->execute([
':uuid' => $uuid,
':company_id' => $this->company_id,
@@ -715,7 +715,7 @@ class StockManager {
// ── Approve this row ──────────────────────────────────────────────
$this->pdo->prepare(
- "UPDATE `{$table}` SET status = 1 WHERE id = :id AND company_id = :company_id"
+ "UPDATE `{$table}` SET status = 1, updated_at = NOW() WHERE id = :id AND company_id = :company_id"
)->execute([':id' => $id, ':company_id' => $this->company_id]);
// ── Rack state + balance ──────────────────────────────────────────
@@ -823,7 +823,7 @@ class StockManager {
// Approve outbound row
if ($from_row && (int)$from_row['status'] === 0) {
$this->pdo->prepare(
- "UPDATE `{$from_table}` SET status = 1
+ "UPDATE `{$from_table}` SET status = 1, updated_at = NOW()
WHERE id = :id AND company_id = :company_id"
)->execute([':id' => $from_row['id'], ':company_id' => $this->company_id]);
}
@@ -831,7 +831,7 @@ class StockManager {
// Approve inbound row
if ($inbound_row && (int)$inbound_row['status'] === 0) {
$this->pdo->prepare(
- "UPDATE `{$paired_table}` SET status = 1
+ "UPDATE `{$paired_table}` SET status = 1, updated_at = NOW()
WHERE id = :id AND company_id = :company_id"
)->execute([':id' => $inbound_row['id'], ':company_id' => $this->company_id]);
}
diff --git a/app/assets/utils/db_auth.php b/app/assets/utils/db_auth.php
index b4c89b9..210c7a0 100644
--- a/app/assets/utils/db_auth.php
+++ b/app/assets/utils/db_auth.php
@@ -77,6 +77,19 @@ if(!empty($_SESSION["login_company_id"])){
$user_role = $map[0]['role'] ?? 'viewer';
$_SESSION['login_role'] = $user_role;
+ // Single-session enforcement: if a session_token was issued at login, verify
+ // it still matches the DB. A mismatch means a newer login has taken over.
+ if (!empty($_SESSION['session_token'])) {
+ $sth = $pdo1->prepare("SELECT session_token FROM user WHERE user_id = :uid LIMIT 1");
+ $sth->execute([':uid' => $_SESSION['login_user_id']]);
+ $db_token = $sth->fetchColumn();
+ if ($db_token !== $_SESSION['session_token']) {
+ session_destroy();
+ http_response_code(401);
+ exit(json_encode(['success' => 0, 'message' => 'You have been signed in from another device.', 'code' => 'signed_elsewhere']));
+ }
+ }
+
}
// Fail closed — reject any request that arrives without an authenticated session
diff --git a/app/login/api/engine/back.php b/app/login/api/engine/back.php
index 7ada439..a812d54 100644
--- a/app/login/api/engine/back.php
+++ b/app/login/api/engine/back.php
@@ -25,6 +25,12 @@ require_once '../../../session.php';
define('UNAUTHENTICATED_ROUTE', true);
require_once '../../../assets/utils/db_auth.php';
+// Clear session token so the account is free to log in elsewhere immediately
+if (!empty($_SESSION['login_user_id'])) {
+ $pdo1->prepare("UPDATE user SET session_token = NULL, session_token_at = NULL WHERE user_id = :uid")
+ ->execute([':uid' => (int)$_SESSION['login_user_id']]);
+}
+
// Intentional 1-second delay — prevents timing attacks on session enumeration
sleep(1);
diff --git a/app/login/api/engine/login_confirm.php b/app/login/api/engine/login_confirm.php
index 2317c50..95d2cf9 100644
--- a/app/login/api/engine/login_confirm.php
+++ b/app/login/api/engine/login_confirm.php
@@ -23,10 +23,12 @@
* b. The elapsed time since otpTime is ≤ 5 minutes.
* Fail either → return "Wrong OTP! Please try again."
* 5. On success:
- * a. session_regenerate_id(true) — prevents session fixation attack by
+ * a. Check session_token in DB — if non-NULL, another session is active;
+ * reject login with "account already logged in" message.
+ * b. session_regenerate_id(true) — prevents session fixation attack by
* issuing a new session ID and deleting the old one.
- * b. Generate a fresh CSRF token and store in session.
- * c. Write the authenticated login session keys:
+ * c. Generate a fresh CSRF token and store in session.
+ * d. Write the authenticated login session keys:
* login_status=1, login_username, login_name, login_surname,
* login_company_id (from user's default_company).
* 6. Return { success: 1, message: "Login Complete!" }.
@@ -93,15 +95,43 @@ $otp_diff_minutes = $otp_diff_seconds / 60.0;
$_SESSION["now"] = $now;
$_SESSION["diff"] = $otp_diff_minutes;
-// ── Step 4: Validate OTP value and expiry ─────────────────────────────────────
-// Fails if either the code doesn't match OR more than 5 minutes have elapsed
-// since the OTP was issued. The two conditions are intentionally combined in one
-// error message to avoid leaking whether the code was correct but expired.
-if ($data["otp"] != $otp || $otp_diff_minutes > 5) {
- $answer["message"] = "Wrong OTP! Please try again. (Our OTP is valid for 5 minute)";
- exit(json_encode($answer));
+// ── Step 4: Block login if another session is already active ─────────────────
+// If session_token is non-NULL AND was set within the last 8 hours, another
+// session is active — reject. Tokens older than 8 hours are treated as
+// abandoned (browser crash, PHP GC expiry, etc.) and cleared automatically.
+$sth_token = $pdo1->prepare("SELECT session_token, session_token_at FROM user WHERE user_id = :uid LIMIT 1");
+$sth_token->execute([':uid' => $user_id]);
+$token_row = $sth_token->fetch(PDO::FETCH_ASSOC);
+$existing_token = $token_row['session_token'] ?? null;
+if (!empty($existing_token)) {
+ $token_age_hours = PHP_INT_MAX;
+ if (!empty($token_row['session_token_at'])) {
+ $token_age_hours = (time() - strtotime($token_row['session_token_at'])) / 3600;
+ }
+ if ($token_age_hours < 8) {
+ $answer["message"] = "This account is currently logged in on another device. Please wait for the other session to end.";
+ exit(json_encode($answer));
+ }
+ // Stale token — clear it and proceed with login
+ $pdo1->prepare("UPDATE user SET session_token = NULL, session_token_at = NULL WHERE user_id = :uid")
+ ->execute([':uid' => $user_id]);
}
+// ── Step 4b: Validate OTP value and expiry ────────────────────────────────────
+// Skipped for staff/viewer roles — login_otp.php sets skip_otp=true in session
+// so they never receive or enter an OTP. Admin/owner always go through this check.
+if (empty($_SESSION['skip_otp'])) {
+ if ($data["otp"] != $otp || $otp_diff_minutes > 5) {
+ $answer["message"] = "Wrong OTP! Please try again. (Our OTP is valid for 5 minute)";
+ exit(json_encode($answer));
+ }
+}
+
+// ── Step 4c: Claim session — write token so no one else can log in ────────────
+$session_token = bin2hex(random_bytes(32));
+$pdo1->prepare("UPDATE user SET session_token = :token, session_token_at = NOW() WHERE user_id = :uid")
+ ->execute([':token' => $session_token, ':uid' => $user_id]);
+
// ── Step 5a: Regenerate session ID ────────────────────────────────────────────
// session_regenerate_id(true) issues a brand-new session ID and deletes the old
// session file, preventing session fixation attacks where an attacker pre-sets
@@ -118,6 +148,7 @@ $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
// These keys are read by db_auth.php on every subsequent request to gate access.
// login_company_id is the user's default_company — used to scope all DB queries.
$_SESSION["login_status"] = 1;
+$_SESSION['session_token'] = $session_token;
$_SESSION["login_user_id"] = (int)$temp["user_id"];
$_SESSION["login_username"] = $temp["username"];
$_SESSION["login_name"] = $temp["name"];
@@ -125,6 +156,9 @@ $_SESSION["login_surname"] = $temp["surname"];
$_SESSION["login_company_id"] = $temp["default_company"];
$_SESSION["login_profile_picture"] = $temp["profile_picture"] ?? '';
$_SESSION["login_license"] = $temp["license"] ?? 'user';
+// Required by db_auth.php's per-request OTP integrity check. For skip_otp users
+// (staff/viewer) this was never written by login_otp.php, so we set it here.
+$_SESSION["otp"] = $otp;
// license='owner' means the user holds their own subscription — use user.app_access.
// license='user' means they were invited — use company_map_user.app_access instead.
$_SESSION["login_app_access"] = $temp["app_access"] ?? 'wms';
diff --git a/app/login/api/engine/login_otp.php b/app/login/api/engine/login_otp.php
index 6b29429..9bee7ad 100644
--- a/app/login/api/engine/login_otp.php
+++ b/app/login/api/engine/login_otp.php
@@ -253,6 +253,31 @@ if (password_verify(trim($data["password"]), $temp["password"])) {
exit(json_encode($answer));
}
+ // ── Step 5g: Role check — staff/viewer skip OTP entirely ─────────────────
+ // Owners always require 2FA. Invited users (license='user') require 2FA only
+ // if their role in this company is admin or owner; staff/viewer go straight in.
+ $requires_otp = true;
+ if (($r['license'] ?? 'owner') !== 'owner') {
+ $sth_role = $pdo1->prepare(
+ "SELECT role FROM company_map_user WHERE company_id = :cid AND user_id = :uid LIMIT 1"
+ );
+ $sth_role->execute([':cid' => (int)($r['default_company'] ?? 0), ':uid' => (int)$r['user_id']]);
+ $role_for_otp = ($sth_role->fetch(PDO::FETCH_ASSOC))['role'] ?? 'viewer';
+ $requires_otp = in_array($role_for_otp, ['admin', 'owner'], true);
+ }
+
+ if (!$requires_otp) {
+ $_SESSION = [];
+ $_SESSION['login_data'] = $data;
+ $_SESSION['login_user_id'] = $user_id;
+ $_SESSION['otpTime'] = time();
+ $_SESSION['skip_otp'] = true;
+ $answer['success'] = 1;
+ $answer['skip_otp'] = true;
+ $answer['message'] = 'Login Complete!';
+ exit(json_encode($answer));
+ }
+
// ── Step 6: Generate 6-digit TOTP ────────────────────────────────────────
// The secret key is the user's current password hash, so the OTP is unique
// per user and automatically invalidated if the password changes.
diff --git a/app/login/index.php b/app/login/index.php
index d48fca7..747c7c1 100644
--- a/app/login/index.php
+++ b/app/login/index.php
@@ -108,6 +108,17 @@
action: 'read',
onSuccess: function(res) {
+ if (res.skip_otp) {
+ // Staff/viewer — no OTP required, confirm session directly
+ return ajax_request({
+ url: "login/api/engine/login_confirm.php",
+ data: { json: JSON.stringify({ otp: '', action: 'read' }) },
+ onSuccess: function() {
+ window.location.href = "index.php";
+ }
+ });
+ }
+
window.location.href = "index.php";
}
diff --git a/setup.php b/setup.php
index 6f29134..a7ad602 100644
--- a/setup.php
+++ b/setup.php
@@ -103,6 +103,8 @@ CREATE TABLE IF NOT EXISTS `user` (
`verify_expires_at` datetime DEFAULT NULL,
`login_attempts` int(11) NOT NULL DEFAULT 0,
`locked_until` datetime DEFAULT NULL,
+ `session_token` varchar(64) DEFAULT NULL,
+ `session_token_at` datetime DEFAULT NULL,
PRIMARY KEY (`user_id`),
UNIQUE KEY `username` (`username`),
UNIQUE KEY `email` (`email`),
@@ -522,9 +524,11 @@ CREATE TABLE IF NOT EXISTS `td_stock` (
`description` text NOT NULL DEFAULT '',
`status` int(3) NOT NULL DEFAULT 0,
`log` mediumtext NOT NULL DEFAULT '{}',
+ `updated_at` datetime DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `company_id` (`company_id`),
- KEY `product_id` (`product_sku`)
+ KEY `product_id` (`product_sku`),
+ KEY `updated_at` (`updated_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3;
", 'td_stock (base template)');