luci-app-2fa: init checkin

plugins/luci-app-2fa/Makefile

@@ -0,0 +1,23 @@
+#
+# Copyright (C) 2026 tokisaki galaxy <moebest@outlook.jp>
+# Copyright (C) 2024 Christian Marangi <ansuelsmth@gmail.com>
+#
+# This is free software, licensed under the Apache License, Version 2.0.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=luci-app-2fa
+
+PKG_LICENSE:=Apache-2.0
+PKG_MAINTAINER:=tokisaki galaxy <moebest@outlook.jp>
+PKG_DESCRIPTION:=LuCI 2-Factor Authentication Plugin
+
+LUCI_TITLE:=LuCI 2-Factor Authentication
+LUCI_DEPENDS:=+luci-base +luci-lib-uqr +ucode-mod-struct +ucode-mod-digest +ucode-mod-log
+LUCI_PKGARCH:=all
+LUCI_URL:=https://github.com/tokisaki-galaxy/luci-app-2fa
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot

plugins/luci-app-2fa/po/templates/2fa.pot

@@ -0,0 +1,176 @@
+msgid ""
+msgstr "Content-Type: text/plain; charset=UTF-8"
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:149
+msgid "2FA enabled"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:23
+msgid ""
+"Adds TOTP/HOTP verification as an additional authentication factor for LuCI "
+"login."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:110
+msgid "Advanced"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:113
+msgid "Allow bypassing 2FA from trusted IP addresses."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:15
+msgid "Authentication"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:48
+msgid ""
+"Base32-encoded secret key for TOTP/HOTP. Generate using an authenticator app."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:29
+msgid "Basic Settings"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:105
+msgid ""
+"Block remote access when system time is not calibrated. LAN access is still "
+"allowed."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:38
+msgid ""
+"Configure 2FA keys for individual users. The key must be a Base32-encoded "
+"secret."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:31
+msgid "Enable 2FA"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:112
+msgid "Enable IP Whitelist"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:78
+msgid "Enable Rate Limiting"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:32
+msgid "Enable two-factor authentication for LuCI login."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:65
+msgid "HOTP (Counter-based)"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:98
+msgid "How long to lock out after too many failed attempts."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:118
+msgid "IP addresses or CIDR ranges that bypass 2FA. Example: 192.168.1.0/24"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:144
+msgid "IP whitelist on"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:57
+msgid "Invalid Base32 format. Use only A-Z and 2-7 characters."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:79
+msgid "Limit failed OTP attempts to prevent brute-force attacks."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:97
+msgid "Lockout Duration (seconds)"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:18
+msgid "Login"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:83
+msgid "Max Failed Attempts"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:84
+msgid "Maximum failed attempts before lockout."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:123
+msgid "Minimum Valid Time"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:61
+msgid "OTP Type for root"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:90
+msgid "Rate Limit Window (seconds)"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:47
+msgid "Secret Key for root"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:76
+msgid "Security"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:104
+msgid "Strict Mode"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:64
+msgid "TOTP (Time-based)"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:62
+msgid ""
+"TOTP (Time-based) is recommended. HOTP (Counter-based) is for special cases."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:68
+msgid "TOTP Time Step"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:69
+msgid "Time step in seconds for TOTP. Default is 30 seconds."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:91
+msgid "Time window for counting failed attempts."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:22
+msgid "Two-Factor Authentication"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:124
+msgid ""
+"Unix timestamp before which system time is considered uncalibrated. Default: "
+"2026-01-01."
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:37
+msgid "User Configuration"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:117
+msgid "Whitelisted IPs"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:141
+msgid "rate limiting on"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:138
+msgid "root user configured"
+msgstr ""
+
+#: applications/luci-app-2fa/root/www/luci-static/resources/view/plugins/bb4ea47fcffb44ec9bb3d3673c9b4ed2.js:147
+msgid "strict mode"
+msgstr ""

plugins/luci-app-2fa/root/etc/uci-defaults/luci-app-2fa

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+# luci-app-2fa: Setup script for two-factor authentication plugin
+# This script sets up the 2FA plugin configuration in luci_plugins
+
+PLUGIN_UUID="bb4ea47fcffb44ec9bb3d3673c9b4ed2"
+
+# Ensure luci_plugins config file exists
+touch /etc/config/luci_plugins
+
+# Create global section if not exists
+uci -q get luci_plugins.global >/dev/null || {
+	uci set luci_plugins.global=global
+	uci set luci_plugins.global.enabled='0'
+}
+
+# Enable auth_login plugins class if not set
+uci -q get luci_plugins.global.auth_login_enabled >/dev/null || {
+	uci set luci_plugins.global.auth_login_enabled='0'
+}
+
+# Create 2FA plugin section if not exists
+uci -q get "luci_plugins.${PLUGIN_UUID}" >/dev/null || {
+	uci set "luci_plugins.${PLUGIN_UUID}=auth_login"
+	uci set "luci_plugins.${PLUGIN_UUID}.enabled=0"
+	uci set "luci_plugins.${PLUGIN_UUID}.name=Two-Factor Authentication"
+
+	# Rate limiting defaults
+	uci set "luci_plugins.${PLUGIN_UUID}.rate_limit_enabled=1"
+	uci set "luci_plugins.${PLUGIN_UUID}.rate_limit_max_attempts=5"
+	uci set "luci_plugins.${PLUGIN_UUID}.rate_limit_window=60"
+	uci set "luci_plugins.${PLUGIN_UUID}.rate_limit_lockout=300"
+
+	# Security defaults
+	uci set "luci_plugins.${PLUGIN_UUID}.strict_mode=0"
+	uci set "luci_plugins.${PLUGIN_UUID}.ip_whitelist_enabled=0"
+
+	# Time calibration threshold (2026-01-01 00:00:00 UTC)
+	uci set "luci_plugins.${PLUGIN_UUID}.min_valid_time=1767225600"
+}
+
+uci commit luci_plugins
+
+exit 0

plugins/luci-app-2fa/root/usr/libexec/generate_otp.uc

@@ -0,0 +1,133 @@
+#!/usr/bin/ucode
+
+// Copyright (c) 2024 Christian Marangi <ansuelsmth@gmail.com>
+// Copyright (c) 2026 tokiskai galaxy <moebest@outlook.jp>
+import { cursor } from 'uci';
+import { sha1 } from 'digest';
+import { pack } from 'struct';
+
+function hex_to_bin(hex) {
+	let bin = "";
+	for (let i = 0; i < length(hex); i += 2) {
+		bin += chr(int(substr(hex, i, 2), 16));
+	}
+	return bin;
+}
+
+const base32_decode_table = (function() {
+	let t = {};
+	for (let i = 0; i < 26; i++) { t[ord('A') + i] = i; t[ord('a') + i] = i; }
+	for (let i = 0; i < 6; i++) { t[ord('2') + i] = 26 + i; }
+	return t;
+})();
+
+function decode_base32_to_bin(string) {
+	let clean = replace(string, /[\s=]/g, "");
+	if (length(clean) == 0) return null;
+
+	let bin = "";
+	let buffer = 0;
+	let bits = 0;
+
+	for (let i = 0; i < length(clean); i++) {
+		let val = base32_decode_table[ord(clean, i)];
+		if (val === null || val === undefined) continue;
+
+		buffer = (buffer << 5) | val;
+		bits += 5;
+
+		if (bits >= 8) {
+			bits -= 8;
+			bin += chr((buffer >> bits) & 0xff);
+		}
+	}
+	return bin;
+}
+
+function calculate_hmac_sha1(key, message) {
+	const blocksize = 64;
+	if (length(key) > blocksize) key = hex_to_bin(sha1(key));
+	while (length(key) < blocksize) key += chr(0);
+
+	let o_key_pad = "", i_key_pad = "";
+	for (let i = 0; i < blocksize; i++) {
+		let k = ord(key, i);
+		o_key_pad += chr(k ^ 0x5c);
+		i_key_pad += chr(k ^ 0x36);
+	}
+	let inner_hash = hex_to_bin(sha1(i_key_pad + message));
+	return sha1(o_key_pad + inner_hash);
+}
+
+function calculate_otp(secret_base32, counter_int) {
+	let secret_bin = decode_base32_to_bin(secret_base32);
+	if (!secret_bin) return null;
+
+	let counter_bin = pack(">I", 0) + pack(">I", counter_int); 
+
+	let hmac_hex = calculate_hmac_sha1(secret_bin, counter_bin);
+
+	let offset = int(substr(hmac_hex, 38, 2), 16) & 0xf;
+	let binary_code = int(substr(hmac_hex, offset * 2, 8), 16) & 0x7fffffff;
+
+	return sprintf("%06d", binary_code % 1000000);
+}
+
+let username = ARGV[0];
+let no_increment = false;
+let custom_time = null;
+let plugin_uuid = null;
+
+for (let i = 1; i < length(ARGV); i++) {
+	let arg = ARGV[i];
+	if (arg == '--no-increment') {
+		no_increment = true;
+	} else if (substr(arg, 0, 7) == '--time=') {
+		let time_str = substr(arg, 7);
+		if (match(time_str, /^[0-9]+$/)) {
+			custom_time = int(time_str);
+			if (custom_time < 946684800 || custom_time > 4102444800) custom_time = null;
+		}
+	} else if (substr(arg, 0, 9) == '--plugin=') {
+		let uuid_str = substr(arg, 9);
+		if (match(uuid_str, /^[0-9a-fA-F]{32}$/)) plugin_uuid = uuid_str;
+	}
+}
+
+if (!username || username == '') exit(1);
+
+let ctx = cursor();
+let otp_type, secret, counter, step;
+
+if (plugin_uuid) {
+	otp_type = ctx.get('luci_plugins', plugin_uuid, 'type_' + username) || 'totp';
+	secret = ctx.get('luci_plugins', plugin_uuid, 'key_' + username);
+	counter = int(ctx.get('luci_plugins', plugin_uuid, 'counter_' + username) || '0');
+	step = int(ctx.get('luci_plugins', plugin_uuid, 'step_' + username) || '30');
+} else {
+	otp_type = ctx.get('2fa', username, 'type') || 'totp';
+	secret = ctx.get('2fa', username, 'key');
+	counter = int(ctx.get('2fa', username, 'counter') || '0');
+	step = int(ctx.get('2fa', username, 'step') || '30');
+}
+
+if (!secret) exit(1);
+
+let otp;
+if (otp_type == 'hotp') {
+	otp = calculate_otp(secret, counter);
+	if (!no_increment && otp) {
+		if (plugin_uuid) {
+			ctx.set('luci_plugins', plugin_uuid, 'counter_' + username, '' + (counter + 1));
+			ctx.commit('luci_plugins');
+		} else {
+			ctx.set('2fa', username, 'counter', '' + (counter + 1));
+			ctx.commit('2fa');
+		}
+	}
+} else {
+	let timestamp = (custom_time != null) ? custom_time : time();
+	otp = calculate_otp(secret, int(timestamp / step));
+}
+
+if (otp) print(otp); else exit(1);