19 Commits
Author SHA1 Message Date
andrew 0813323ac2 renamed form fields to work better with password managers; fixed bug where an invalid login requests were not being counted as login attempts; preserve username when using central auth 2026-06-01 16:28:57 -04:00
andrew 9114cfd96f update to php 8.5, backup codes, etc.
modified:   Dockerfile
	modified:   composer.json
	modified:   composer.lock
	modified:   config/packages/twig.yaml
	modified:   config/services.yaml
	modified:   docs/Caddyfile
	modified:   docs/compose.yaml
	renamed:    docs/env.example -> docs/example.env
	modified:   public/index.php
	modified:   readme.md
	modified:   src/Command/GenerateBackupCodesCommand.php
	modified:   src/ConfigBag.php
	modified:   src/Data/Payload.php
	modified:   src/Enum/Scope.php
	modified:   src/Listener/AcceptListener.php
	modified:   src/Listener/AllowListener.php
	modified:   src/Listener/InterceptListener.php
	modified:   src/Listener/LoginListener.php
	modified:   src/MonitorCacheKeys.php
	modified:   src/PersistCache.php
	modified:   src/Service/BackupCodeManager.php
	modified:   src/Service/DomainManager.php
	new file:   src/Service/LoginManager.php
	modified:   src/Trait/CookieNameTrait.php
	modified:   src/Trait/GetTotpTrait.php
	modified:   src/Trait/MakeNonceTrait.php
	modified:   src/Trait/StringTrait.php
	modified:   src/Utilities.php
	modified:   templates/_script.html.twig
	modified:   templates/_style.html.twig
	modified:   templates/base.html.twig
	modified:   templates/login.html.twig
2026-05-29 21:56:42 -04:00
andrew 43e9b7136e auth subdomain tentatively complete.
All domain logic moved into service.
2026-05-22 12:43:02 -04:00
andrew 38124ef66c First draft of backup codes. only created when the command is called. no command yet to expire/review codes.
Also added a few safeguards against excessively long user input.

Started on ability to redirect to auth subdomain (incomplete).
2026-05-21 12:15:35 -04:00
andrew 6ed1ab26f1 cache persistence improvement, only update keys which have changed. More efficient, and less likely to cause race conditions. 2026-03-12 17:15:49 -04:00
andrew a0dc1a6049 rate-limiting update, now using a compound sliding-window. Continuing to move over to using traits more, and other code cleanup. 2026-03-11 08:27:27 -04:00
andrew 3d28485921 Removal of static-secret and totp-lookup.
Intending to build support for single-use backup codes.

Started refactoring to move trait dependencies internally, so that classes only have to specify their own direct dependencies.
2026-03-09 16:22:32 -04:00
andrew 27394ae555 v0.6.0 optional lookup for totp by static password 2026-02-10 13:31:09 -05:00
andrew c235aad941 single column if narrow enough 2026-01-17 14:02:23 -05:00
andrew b61400085a frontend support for password 2026-01-17 10:57:57 -05:00
andrew 4a543f45ca minor nonce related cleanup 2026-01-16 12:17:18 -05:00
andrew 4cec5a5963 added project history 2025-12-28 11:14:59 -05:00
andrew c3fbb12842 updating readme 2025-12-28 10:38:46 -05:00
andrew ac817649ab fixed bug which can occur if you delete cache files.
fixed warnings due to volume locations.
2025-12-26 21:17:36 -05:00
andrew 1c4c289d81 massive rewrite to switch to using listeners instead of controller, header for login payload instead of get request, removed icon system, asset system, was able to remove all the domain processing, enhanced cookie security, and more. 2025-12-23 11:24:47 -05:00
andrew b36aabb8a3 WIP: nearly done switching to using header instead of url parameters 2025-12-18 19:20:50 -05:00
andrew f486ab7481 already accepted/rejected are now listeners to start cleaning up the massive controller of doom 2025-12-17 15:25:07 -05:00
andrew a73d039e10 removed maker-bundle, switching to apcu 2025-12-16 22:34:57 -05:00
andrew 102b9f3e78 Full code refactor to Symfony7.4 with FrankenPHP
Includes significant breaking changes.
Default port and transportation changed to
http via port 80
Names of environment variables have changed.
2025-12-15 12:30:14 -05:00
64 changed files with 6633 additions and 849 deletions
+17
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@@ -1,3 +1,20 @@
# editorconfig.org
root = true
[*]
charset = utf-8
end_of_line = lf
indent_size = 4
indent_style = space
insert_final_newline = true
trim_trailing_whitespace = true
[Caddyfile]
indent_style = tab
[{compose.yaml,compose.*.yaml}]
indent_size = 2
[*.md]
trim_trailing_whitespace = false
-37
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@@ -1,37 +0,0 @@
# required, if missing will generate random values
# encryption key used to store sessions (static random bytes) in base64
PREAUTH_KEY=''
# TOTP (RFC 6238) secret/token (static random bytes) in base32
PREAUTH_TOKEN=''
# optional, change time-to-live, subdomain, default-redirect, text or colors
# how long a session lasts (in minutes): 43200 is 30 days
PREAUTH_TTL=43200
PREAUTH_SUBDOMAIN='preauth'
PREAUTH_SEND_TO='https://secure.example.com/'
PREAUTH_BACKGROUND='#029386'
PREAUTH_FOREGROUND='#ffffff'
PREAUTH_TITLE='Pre-Authentication System'
PREAUTH_ID_NAME='Session ID'
PREAUTH_TOKEN_NAME='Authentication Token'
PREAUTH_SUBMIT_NAME='Submit'
# how many consecutive failed login attempts before we block them (a remote-ip)
PREAUTH_RATE_LIMIT=4
# maximum time between failed login attempts to still be consecutive (in minutes): 360 is 6 hours
PREAUTH_RATE_TIMEOUT=360
# how long after last failed login will they be blocked (in minutes): 1440 is 24 hours
PREAUTH_RATE_BLOCKED=1440
# what do we show when they get rate-limited
PREAUTH_DENIED_CODE=418
PREAUTH_DENIED_TITLE="I'm a teapot"
PREAUTH_DENIED_MESSAGE='I refuse to brew coffee.'
# alternatively, you could use a more standard response
#PREAUTH_DENIED_CODE=429
#PREAUTH_DENIED_TITLE='Too Many Requests'
#PREAUTH_DENIED_MESSAGE='Try again later.'
# who owns the session files
# permissions of the volume must match
USER_ID=1000
GROUP_ID=1000
+8
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@@ -0,0 +1,8 @@
/.idea/
###> symfony/framework-bundle ###
/config/secrets/prod/prod.decrypt.private.php
/public/bundles/
/var/
/vendor/
###< symfony/framework-bundle ###
-55
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@@ -1,55 +0,0 @@
<?php
use Preauth\Env;
global $auth;
$env = new Env();
header("http/1.1 {$env->getDeniedCode()} {$env->getDeniedTitle()}", true, $env->getDeniedCode());
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title><?php echo $env->getTitle(); ?></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Begin Icons -->
<link rel="apple-touch-icon" sizes="180x180" href="https://<?php echo $auth->getBaseDomain(); ?>/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="192x192" href="https://<?php echo $auth->getBaseDomain(); ?>/android-chrome-192x192.png">
<link rel="icon" type="image/png" sizes="16x16" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-16x16.png">
<link rel="manifest" href="https://<?php echo $auth->getBaseDomain(); ?>/site.webmanifest">
<meta name="apple-mobile-web-app-title" content="<?php echo $env->getTitle(); ?>">
<meta name="application-name" content="<?php echo $env->getTitle(); ?>">
<meta name="msapplication-TileColor" content="<?php echo $env->getColor(); ?>">
<meta name="theme-color" content="<?php echo $env->getColor(); ?>">
<!-- End Icons -->
<style>
* {
margin: 0;
padding: 0.25em;
}
html {
background-color: <?php echo $env->getColor(); ?>;
color: <?php echo $env->getTextColor(); ?>;
display: table;
font-family: sans-serif;
font-size: 1.5em;
height: 100%;
padding: 0;
text-align: center;
width: 100%;
}
body {
display: table-cell;
vertical-align: middle;
}
h1 {
font-size: 2.5em;
font-weight: normal;
}
</style>
</head>
<body>
<h1><?php echo $env->getTitle(); ?></h1>
<h2><?php echo $env->getDeniedTitle(); ?></h2>
<p><?php echo $env->getDeniedMessage(); ?></p>
</body>
</html>
-54
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@@ -1,54 +0,0 @@
<?php
use Preauth\Env;
global $auth;
$env = new Env();
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title><?php echo $env->getTitle(); ?></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Begin Icons -->
<link rel="apple-touch-icon" sizes="180x180" href="https://<?php echo $auth->getBaseDomain(); ?>/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="192x192" href="https://<?php echo $auth->getBaseDomain(); ?>/android-chrome-192x192.png">
<link rel="icon" type="image/png" sizes="16x16" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-16x16.png">
<link rel="manifest" href="https://<?php echo $auth->getBaseDomain(); ?>/site.webmanifest">
<meta name="apple-mobile-web-app-title" content="<?php echo $env->getTitle(); ?>">
<meta name="application-name" content="<?php echo $env->getTitle(); ?>">
<meta name="msapplication-TileColor" content="<?php echo $env->getColor(); ?>">
<meta name="theme-color" content="<?php echo $env->getColor(); ?>">
<!-- End Icons -->
<style>
* {
margin: 0;
padding: 0.25em;
}
html {
background-color: <?php echo $env->getColor(); ?>;
color: <?php echo $env->getTextColor(); ?>;
display: table;
font-family: sans-serif;
font-size: 1.5em;
height: 100%;
padding: 0;
text-align: center;
width: 100%;
}
body {
display: table-cell;
vertical-align: middle;
}
h1 {
font-size: 2.5em;
font-weight: normal;
}
</style>
</head>
<body>
<h1><?php echo $env->getTitle(); ?></h1>
<h2>Internal Server Error</h2>
<p>Review the logs for more details.</p>
</body>
</html>
+6 -43
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@@ -1,44 +1,7 @@
# allow the pre-auth page to work
preauth.example.com {
reverse_proxy preauth:9000 {
header_up X-Forwarded-Uri {uri}
header_down -X-Powered-By
rewrite /preauth.php
transport fastcgi {
root /preauth/
split .php
}
}
http://
root public/
rewrite index.php
php {
root /app/public
worker index.php
}
# if using caddy v2.9.x+ you can use this snippet
# snippet to put the pre-auth system in front any service easily
(preauth) {
reverse_proxy {args[0]} preauth:9000 {
method GET
header_up X-Forwarded-Uri {uri}
header_down -X-Powered-By
rewrite /preauth.php
transport fastcgi {
root /preauth/
split .php
}
@preauth_ok status 2xx
handle_response @preauth_ok {
copy_response_headers {
include Set-Cookie Location
}
{block}
}
}
}
# snippet usage: this will cause preauth to restrict access to
# https://protected.example.com/secure
protected.example.com {
import preauth /secure {
reverse_proxy protected-service:9000
}
reverse_proxy exposed-service:9000
}
+57 -22
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@@ -1,34 +1,69 @@
FROM php:8.4-fpm-alpine
# use build image, to simplify final image
FROM php:8.5-trixie AS build
# get compose so we can install our php dependencies
# install APCu and composer
RUN pecl install apcu && \
docker-php-ext-enable apcu
COPY --from=composer /usr/bin/composer /usr/bin/composer
RUN apt-get update && \
apt-get install -y unzip git
# app is stored here
RUN mkdir /preauth
WORKDIR /preauth
COPY . /preauth/
# symfony required environment variables
ENV APP_DEBUG=0
ENV APP_ENV=prod
ENV APP_SHARE_DIR=/data/preauth
# add php config for rate limit monitoring
RUN mkdir -p /usr/local/etc/php/conf.d
COPY preauth-php.ini /usr/local/etc/php/conf.d/preauth-php.ini
# load application into build image
RUN mkdir -p /data/preauth
RUN mkdir -p /app/bin
WORKDIR /app
COPY ./bin/console /app/bin/console
COPY ./config /app/config
COPY ./public /app/public
COPY ./src /app/src
COPY ./templates /app/templates
COPY ./composer.json /app/composer.json
COPY ./composer.lock /app/composer.lock
COPY ./symfony.lock /app/symfony.lock
# login sessions are stored here
RUN mkdir -p /tmp/data/sessions
# install application dependencies
RUN composer install --no-dev --optimize-autoloader
RUN composer dump-env prod --empty
# rate limit monitoring information is stored here
RUN mkdir -p /tmp/data/monitor
# start creating final image
FROM dunglas/frankenphp:php8.5-trixie
# fcgi command for the healthcheck
RUN apk add fcgi
# install APCu
RUN pecl install apcu && \
docker-php-ext-enable apcu
# install our php dependencies
RUN composer install
# symfony required environment variables
ENV APP_DEBUG=0
ENV APP_ENV=prod
ENV APP_SHARE_DIR=/data/preauth
EXPOSE 9000
# load application into final image
WORKDIR /app
COPY --from=build /data/preauth /data/preauth
COPY --from=build /app /app
HEALTHCHECK --interval=5m --retries=3 --start-interval=5s --start-period=50s --timeout=5s \
CMD SCRIPT_NAME=/health.php SCRIPT_FILENAME=/preauth/health.php REQUEST_METHOD=GET \
cgi-fcgi -bind -connect localhost:9000 | grep 'online' || exit 1
# configure container
COPY ./Caddyfile /etc/frankenphp/Caddyfile
RUN cp $PHP_INI_DIR/php.ini-production $PHP_INI_DIR/php.ini
RUN echo 'expose_php = off' > $PHP_INI_DIR/conf.d/restrict.ini
# console needs apc to manage cache
RUN echo 'apc.enable_cli = on' > $PHP_INI_DIR/conf.d/console.ini
ENTRYPOINT ["/preauth/init.sh"]
# app uses var folder for cache storage
VOLUME ["/config", "/data"]
# runs http on standard port
EXPOSE 80
# healthcheck
HEALTHCHECK --interval=5m \
--retries=3 \
--start-interval=1s \
--start-period=10s \
--timeout=2s \
CMD curl http://localhost || exit 1
Executable
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+21
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@@ -0,0 +1,21 @@
#!/usr/bin/env php
<?php
use App\Kernel;
use Symfony\Bundle\FrameworkBundle\Console\Application;
if (!is_dir(dirname(__DIR__).'/vendor')) {
throw new LogicException('Dependencies are missing. Try running "composer install".');
}
if (!is_file(dirname(__DIR__).'/vendor/autoload_runtime.php')) {
throw new LogicException('Symfony Runtime is missing. Try running "composer require symfony/runtime".');
}
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
$kernel = new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
return new Application($kernel);
};
Executable
+13
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@@ -0,0 +1,13 @@
#!/bin/sh
docker container rm preauth
docker build . -t digtialadapt/preauth:dev
docker run --name preauth \
-e APP_ENV=dev \
-e APP_DEBUG=true \
-e APP_SECRET=f88a1074691c40415be4439345b79f69 \
-e APP_SHARE_DIR=var/share \
-e DEFAULT_URI=http://localhost \
-v ./var/share:/app/var/share \
-p 8000:80 \
digtialadapt/preauth:dev
-19
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@@ -1,19 +0,0 @@
services:
preauth:
env_file:
# TODO rename ".env.example" to just ".env"
# edit USER_ID and GROUP_ID if needed
# set PREAUTH_KEY and PREAUTH_TOKEN after initial start to persist those settings
- .env
expose:
- 9000
image: digitaladapt/preauth
init: true
restart: unless-stopped
user: ${USER_ID}:${GROUP_ID}
volumes:
- preauth:/tmp/data
volumes:
preauth:
+65 -5
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@@ -1,12 +1,72 @@
{
"type": "project",
"license": "MIT",
"minimum-stability": "stable",
"prefer-stable": true,
"require": {
"php": ">=8.4",
"ext-ctype": "*",
"ext-iconv": "*",
"bacon/bacon-qr-code": "^3.1.1",
"runtime/frankenphp-symfony": "^1.0.0",
"spomky-labs/otphp": "^11.4.2",
"symfony/cache": "7.4.*",
"symfony/console": "7.4.*",
"symfony/flex": "^2.11",
"symfony/framework-bundle": "7.4.*",
"symfony/mime": "7.4.*",
"symfony/rate-limiter": "7.4.*",
"symfony/runtime": "7.4.*",
"symfony/twig-bundle": "7.4.*",
"symfony/uid": "7.4.*",
"symfony/yaml": "7.4.*"
},
"config": {
"allow-plugins": {
"php-http/discovery": true,
"symfony/flex": true,
"symfony/runtime": true
},
"bump-after-update": true,
"sort-packages": true
},
"autoload": {
"psr-4": {
"Preauth\\": "src/"
"App\\": "src/"
}
},
"require": {
"spomky-labs/otphp": "^11.3",
"symfony/http-foundation": "^7.3",
"symfony/uid": "^7.3"
"replace": {
"symfony/polyfill-ctype": "*",
"symfony/polyfill-iconv": "*",
"symfony/polyfill-php72": "*",
"symfony/polyfill-php73": "*",
"symfony/polyfill-php74": "*",
"symfony/polyfill-php80": "*",
"symfony/polyfill-php81": "*",
"symfony/polyfill-php82": "*"
},
"scripts": {
"auto-scripts": {
"cache:clear": "symfony-cmd",
"assets:install %PUBLIC_DIR%": "symfony-cmd"
},
"post-install-cmd": [
"@auto-scripts"
],
"post-update-cmd": [
"@auto-scripts"
]
},
"conflict": {
"symfony/symfony": "*"
},
"extra": {
"runtime": {
"class": "Runtime\\FrankenPhpSymfony\\Runtime"
},
"symfony": {
"allow-contrib": false,
"require": "7.4.*"
}
}
}
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+6
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@@ -0,0 +1,6 @@
<?php
return [
Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],
];
+15
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@@ -0,0 +1,15 @@
framework:
cache:
app: cache.adapter.filesystem
pools:
nonceCache:
adapters: cache.adapter.apcu
rateLimitCache:
adapters: cache.adapter.apcu
sessionCache:
adapters: cache.adapter.apcu
sessionStorage:
adapters: cache.adapter.filesystem
# Unique name of your app: used to compute stable namespaces for cache keys.
prefix_seed: digitaladapt/preauth
+9
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@@ -0,0 +1,9 @@
# see https://symfony.com/doc/current/reference/configuration/framework.html
framework:
secret: '%env(APP_SECRET)%'
trusted_proxies: 'private_ranges'
trusted_headers: ['x-forwarded-for', 'x-forwarded-host', 'x-forwarded-proto']
# Note that the session will be started ONLY if you read or write from it.
session: true
+15
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@@ -0,0 +1,15 @@
framework:
rate_limiter:
burst:
policy: 'sliding_window'
limit: '%env(int:BURST_COUNT)%'
interval: '%env(int:BURST_TIME)% seconds'
cache_pool: 'rateLimitCache'
upper:
policy: 'sliding_window'
limit: '%env(int:UPPER_COUNT)%'
interval: '%env(int:UPPER_TIME)% seconds'
cache_pool: 'rateLimitCache'
login_limiter:
policy: compound
limiters: [burst, upper]
+8
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@@ -0,0 +1,8 @@
framework:
router:
default_uri: 'http://localhost'
when@prod:
framework:
router:
strict_requirements: null
+18
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@@ -0,0 +1,18 @@
twig:
file_name_pattern: '*.twig'
strict_variables: true
globals:
env:
title: '%env(TITLE)%'
bg_color: '%env(BG_COLOR)%'
fg_color: '%env(FG_COLOR)%'
error_color: '%env(ERROR_COLOR)%'
id_name: '%env(ID_NAME)%'
token_name: '%env(TOKEN_NAME)%'
submit_name: '%env(SUBMIT_NAME)%'
error_message: '%env(ERROR_MESSAGE)%'
teapot_title: '%env(TEAPOT_TITLE)%'
teapot_message: '%env(TEAPOT_MESSAGE)%'
too_many_title: '%env(TOO_MANY_TITLE)%'
too_many_message: '%env(TOO_MANY_MESSAGE)%'
debug: '%env(SHELL_VERBOSITY)%'
+8
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@@ -0,0 +1,8 @@
<?php
if (file_exists(dirname(__DIR__) .
'/var/cache/prod/App_KernelProdContainer.preload.php')
) {
require dirname(__DIR__) .
'/var/cache/prod/App_KernelProdContainer.preload.php';
}
+844
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@@ -0,0 +1,844 @@
<?php
// This file is auto-generated and is for apps only. Bundles SHOULD NOT rely on its content.
namespace Symfony\Component\DependencyInjection\Loader\Configurator;
use Symfony\Component\Config\Loader\ParamConfigurator as Param;
/**
* This class provides array-shapes for configuring the services and bundles of an application.
*
* Services declared with the config() method below are autowired and autoconfigured by default.
*
* This is for apps only. Bundles SHOULD NOT use it.
*
* Example:
*
* ```php
* // config/services.php
* namespace Symfony\Component\DependencyInjection\Loader\Configurator;
*
* return App::config([
* 'services' => [
* 'App\\' => [
* 'resource' => '../src/',
* ],
* ],
* ]);
* ```
*
* @psalm-type ImportsConfig = list<string|array{
* resource: string,
* type?: string|null,
* ignore_errors?: bool,
* }>
* @psalm-type ParametersConfig = array<string, scalar|\UnitEnum|array<scalar|\UnitEnum|array<mixed>|Param|null>|Param|null>
* @psalm-type ArgumentsType = list<mixed>|array<string, mixed>
* @psalm-type CallType = array<string, ArgumentsType>|array{0:string, 1?:ArgumentsType, 2?:bool}|array{method:string, arguments?:ArgumentsType, returns_clone?:bool}
* @psalm-type TagsType = list<string|array<string, array<string, mixed>>> // arrays inside the list must have only one element, with the tag name as the key
* @psalm-type CallbackType = string|array{0:string|ReferenceConfigurator,1:string}|\Closure|ReferenceConfigurator
* @psalm-type DeprecationType = array{package: string, version: string, message?: string}
* @psalm-type DefaultsType = array{
* public?: bool,
* tags?: TagsType,
* resource_tags?: TagsType,
* autowire?: bool,
* autoconfigure?: bool,
* bind?: array<string, mixed>,
* }
* @psalm-type InstanceofType = array{
* shared?: bool,
* lazy?: bool|string,
* public?: bool,
* properties?: array<string, mixed>,
* configurator?: CallbackType,
* calls?: list<CallType>,
* tags?: TagsType,
* resource_tags?: TagsType,
* autowire?: bool,
* bind?: array<string, mixed>,
* constructor?: string,
* }
* @psalm-type DefinitionType = array{
* class?: string,
* file?: string,
* parent?: string,
* shared?: bool,
* synthetic?: bool,
* lazy?: bool|string,
* public?: bool,
* abstract?: bool,
* deprecated?: DeprecationType,
* factory?: CallbackType,
* configurator?: CallbackType,
* arguments?: ArgumentsType,
* properties?: array<string, mixed>,
* calls?: list<CallType>,
* tags?: TagsType,
* resource_tags?: TagsType,
* decorates?: string,
* decoration_inner_name?: string,
* decoration_priority?: int,
* decoration_on_invalid?: 'exception'|'ignore'|null,
* autowire?: bool,
* autoconfigure?: bool,
* bind?: array<string, mixed>,
* constructor?: string,
* from_callable?: CallbackType,
* }
* @psalm-type AliasType = string|array{
* alias: string,
* public?: bool,
* deprecated?: DeprecationType,
* }
* @psalm-type PrototypeType = array{
* resource: string,
* namespace?: string,
* exclude?: string|list<string>,
* parent?: string,
* shared?: bool,
* lazy?: bool|string,
* public?: bool,
* abstract?: bool,
* deprecated?: DeprecationType,
* factory?: CallbackType,
* arguments?: ArgumentsType,
* properties?: array<string, mixed>,
* configurator?: CallbackType,
* calls?: list<CallType>,
* tags?: TagsType,
* resource_tags?: TagsType,
* autowire?: bool,
* autoconfigure?: bool,
* bind?: array<string, mixed>,
* constructor?: string,
* }
* @psalm-type StackType = array{
* stack: list<DefinitionType|AliasType|PrototypeType|array<class-string, ArgumentsType|null>>,
* public?: bool,
* deprecated?: DeprecationType,
* }
* @psalm-type ServicesConfig = array{
* _defaults?: DefaultsType,
* _instanceof?: InstanceofType,
* ...<string, DefinitionType|AliasType|PrototypeType|StackType|ArgumentsType|null>
* }
* @psalm-type ExtensionType = array<string, mixed>
* @psalm-type FrameworkConfig = array{
* secret?: scalar|Param|null,
* http_method_override?: bool|Param, // Set true to enable support for the '_method' request parameter to determine the intended HTTP method on POST requests. // Default: false
* allowed_http_method_override?: list<string|Param>|null,
* trust_x_sendfile_type_header?: scalar|Param|null, // Set true to enable support for xsendfile in binary file responses. // Default: "%env(bool:default::SYMFONY_TRUST_X_SENDFILE_TYPE_HEADER)%"
* ide?: scalar|Param|null, // Default: "%env(default::SYMFONY_IDE)%"
* test?: bool|Param,
* default_locale?: scalar|Param|null, // Default: "en"
* set_locale_from_accept_language?: bool|Param, // Whether to use the Accept-Language HTTP header to set the Request locale (only when the "_locale" request attribute is not passed). // Default: false
* set_content_language_from_locale?: bool|Param, // Whether to set the Content-Language HTTP header on the Response using the Request locale. // Default: false
* enabled_locales?: list<scalar|Param|null>,
* trusted_hosts?: list<scalar|Param|null>,
* trusted_proxies?: mixed, // Default: ["%env(default::SYMFONY_TRUSTED_PROXIES)%"]
* trusted_headers?: list<scalar|Param|null>,
* error_controller?: scalar|Param|null, // Default: "error_controller"
* handle_all_throwables?: bool|Param, // HttpKernel will handle all kinds of \Throwable. // Default: true
* csrf_protection?: bool|array{
* enabled?: scalar|Param|null, // Default: null
* stateless_token_ids?: list<scalar|Param|null>,
* check_header?: scalar|Param|null, // Whether to check the CSRF token in a header in addition to a cookie when using stateless protection. // Default: false
* cookie_name?: scalar|Param|null, // The name of the cookie to use when using stateless protection. // Default: "csrf-token"
* },
* form?: bool|array{ // Form configuration
* enabled?: bool|Param, // Default: false
* csrf_protection?: bool|array{
* enabled?: scalar|Param|null, // Default: null
* token_id?: scalar|Param|null, // Default: null
* field_name?: scalar|Param|null, // Default: "_token"
* field_attr?: array<string, scalar|Param|null>,
* },
* },
* http_cache?: bool|array{ // HTTP cache configuration
* enabled?: bool|Param, // Default: false
* debug?: bool|Param, // Default: "%kernel.debug%"
* trace_level?: "none"|"short"|"full"|Param,
* trace_header?: scalar|Param|null,
* default_ttl?: int|Param,
* private_headers?: list<scalar|Param|null>,
* skip_response_headers?: list<scalar|Param|null>,
* allow_reload?: bool|Param,
* allow_revalidate?: bool|Param,
* stale_while_revalidate?: int|Param,
* stale_if_error?: int|Param,
* terminate_on_cache_hit?: bool|Param,
* },
* esi?: bool|array{ // ESI configuration
* enabled?: bool|Param, // Default: false
* },
* ssi?: bool|array{ // SSI configuration
* enabled?: bool|Param, // Default: false
* },
* fragments?: bool|array{ // Fragments configuration
* enabled?: bool|Param, // Default: false
* hinclude_default_template?: scalar|Param|null, // Default: null
* path?: scalar|Param|null, // Default: "/_fragment"
* },
* profiler?: bool|array{ // Profiler configuration
* enabled?: bool|Param, // Default: false
* collect?: bool|Param, // Default: true
* collect_parameter?: scalar|Param|null, // The name of the parameter to use to enable or disable collection on a per request basis. // Default: null
* only_exceptions?: bool|Param, // Default: false
* only_main_requests?: bool|Param, // Default: false
* dsn?: scalar|Param|null, // Default: "file:%kernel.cache_dir%/profiler"
* collect_serializer_data?: bool|Param, // Enables the serializer data collector and profiler panel. // Default: false
* },
* workflows?: bool|array{
* enabled?: bool|Param, // Default: false
* workflows?: array<string, array{ // Default: []
* audit_trail?: bool|array{
* enabled?: bool|Param, // Default: false
* },
* type?: "workflow"|"state_machine"|Param, // Default: "state_machine"
* marking_store?: array{
* type?: "method"|Param,
* property?: scalar|Param|null,
* service?: scalar|Param|null,
* },
* supports?: list<scalar|Param|null>,
* definition_validators?: list<scalar|Param|null>,
* support_strategy?: scalar|Param|null,
* initial_marking?: list<scalar|Param|null>,
* events_to_dispatch?: list<string|Param>|null,
* places?: list<array{ // Default: []
* name?: scalar|Param|null,
* metadata?: array<string, mixed>,
* }>,
* transitions?: list<array{ // Default: []
* name?: string|Param,
* guard?: string|Param, // An expression to block the transition.
* from?: list<array{ // Default: []
* place?: string|Param,
* weight?: int|Param, // Default: 1
* }>,
* to?: list<array{ // Default: []
* place?: string|Param,
* weight?: int|Param, // Default: 1
* }>,
* weight?: int|Param, // Default: 1
* metadata?: array<string, mixed>,
* }>,
* metadata?: array<string, mixed>,
* }>,
* },
* router?: bool|array{ // Router configuration
* enabled?: bool|Param, // Default: false
* resource?: scalar|Param|null,
* type?: scalar|Param|null,
* cache_dir?: scalar|Param|null, // Deprecated: Setting the "framework.router.cache_dir.cache_dir" configuration option is deprecated. It will be removed in version 8.0. // Default: "%kernel.build_dir%"
* default_uri?: scalar|Param|null, // The default URI used to generate URLs in a non-HTTP context. // Default: null
* http_port?: scalar|Param|null, // Default: 80
* https_port?: scalar|Param|null, // Default: 443
* strict_requirements?: scalar|Param|null, // set to true to throw an exception when a parameter does not match the requirements set to false to disable exceptions when a parameter does not match the requirements (and return null instead) set to null to disable parameter checks against requirements 'true' is the preferred configuration in development mode, while 'false' or 'null' might be preferred in production // Default: true
* utf8?: bool|Param, // Default: true
* },
* session?: bool|array{ // Session configuration
* enabled?: bool|Param, // Default: false
* storage_factory_id?: scalar|Param|null, // Default: "session.storage.factory.native"
* handler_id?: scalar|Param|null, // Defaults to using the native session handler, or to the native *file* session handler if "save_path" is not null.
* name?: scalar|Param|null,
* cookie_lifetime?: scalar|Param|null,
* cookie_path?: scalar|Param|null,
* cookie_domain?: scalar|Param|null,
* cookie_secure?: true|false|"auto"|Param, // Default: "auto"
* cookie_httponly?: bool|Param, // Default: true
* cookie_samesite?: null|"lax"|"strict"|"none"|Param, // Default: "lax"
* use_cookies?: bool|Param,
* gc_divisor?: scalar|Param|null,
* gc_probability?: scalar|Param|null,
* gc_maxlifetime?: scalar|Param|null,
* save_path?: scalar|Param|null, // Defaults to "%kernel.cache_dir%/sessions" if the "handler_id" option is not null.
* metadata_update_threshold?: int|Param, // Seconds to wait between 2 session metadata updates. // Default: 0
* sid_length?: int|Param, // Deprecated: Setting the "framework.session.sid_length.sid_length" configuration option is deprecated. It will be removed in version 8.0. No alternative is provided as PHP 8.4 has deprecated the related option.
* sid_bits_per_character?: int|Param, // Deprecated: Setting the "framework.session.sid_bits_per_character.sid_bits_per_character" configuration option is deprecated. It will be removed in version 8.0. No alternative is provided as PHP 8.4 has deprecated the related option.
* },
* request?: bool|array{ // Request configuration
* enabled?: bool|Param, // Default: false
* formats?: array<string, string|list<scalar|Param|null>>,
* },
* assets?: bool|array{ // Assets configuration
* enabled?: bool|Param, // Default: false
* strict_mode?: bool|Param, // Throw an exception if an entry is missing from the manifest.json. // Default: false
* version_strategy?: scalar|Param|null, // Default: null
* version?: scalar|Param|null, // Default: null
* version_format?: scalar|Param|null, // Default: "%%s?%%s"
* json_manifest_path?: scalar|Param|null, // Default: null
* base_path?: scalar|Param|null, // Default: ""
* base_urls?: list<scalar|Param|null>,
* packages?: array<string, array{ // Default: []
* strict_mode?: bool|Param, // Throw an exception if an entry is missing from the manifest.json. // Default: false
* version_strategy?: scalar|Param|null, // Default: null
* version?: scalar|Param|null,
* version_format?: scalar|Param|null, // Default: null
* json_manifest_path?: scalar|Param|null, // Default: null
* base_path?: scalar|Param|null, // Default: ""
* base_urls?: list<scalar|Param|null>,
* }>,
* },
* asset_mapper?: bool|array{ // Asset Mapper configuration
* enabled?: bool|Param, // Default: false
* paths?: array<string, scalar|Param|null>,
* excluded_patterns?: list<scalar|Param|null>,
* exclude_dotfiles?: bool|Param, // If true, any files starting with "." will be excluded from the asset mapper. // Default: true
* server?: bool|Param, // If true, a "dev server" will return the assets from the public directory (true in "debug" mode only by default). // Default: true
* public_prefix?: scalar|Param|null, // The public path where the assets will be written to (and served from when "server" is true). // Default: "/assets/"
* missing_import_mode?: "strict"|"warn"|"ignore"|Param, // Behavior if an asset cannot be found when imported from JavaScript or CSS files - e.g. "import './non-existent.js'". "strict" means an exception is thrown, "warn" means a warning is logged, "ignore" means the import is left as-is. // Default: "warn"
* extensions?: array<string, scalar|Param|null>,
* importmap_path?: scalar|Param|null, // The path of the importmap.php file. // Default: "%kernel.project_dir%/importmap.php"
* importmap_polyfill?: scalar|Param|null, // The importmap name that will be used to load the polyfill. Set to false to disable. // Default: "es-module-shims"
* importmap_script_attributes?: array<string, scalar|Param|null>,
* vendor_dir?: scalar|Param|null, // The directory to store JavaScript vendors. // Default: "%kernel.project_dir%/assets/vendor"
* precompress?: bool|array{ // Precompress assets with Brotli, Zstandard and gzip.
* enabled?: bool|Param, // Default: false
* formats?: list<scalar|Param|null>,
* extensions?: list<scalar|Param|null>,
* },
* },
* translator?: bool|array{ // Translator configuration
* enabled?: bool|Param, // Default: false
* fallbacks?: list<scalar|Param|null>,
* logging?: bool|Param, // Default: false
* formatter?: scalar|Param|null, // Default: "translator.formatter.default"
* cache_dir?: scalar|Param|null, // Default: "%kernel.cache_dir%/translations"
* default_path?: scalar|Param|null, // The default path used to load translations. // Default: "%kernel.project_dir%/translations"
* paths?: list<scalar|Param|null>,
* pseudo_localization?: bool|array{
* enabled?: bool|Param, // Default: false
* accents?: bool|Param, // Default: true
* expansion_factor?: float|Param, // Default: 1.0
* brackets?: bool|Param, // Default: true
* parse_html?: bool|Param, // Default: false
* localizable_html_attributes?: list<scalar|Param|null>,
* },
* providers?: array<string, array{ // Default: []
* dsn?: scalar|Param|null,
* domains?: list<scalar|Param|null>,
* locales?: list<scalar|Param|null>,
* }>,
* globals?: array<string, string|array{ // Default: []
* value?: mixed,
* message?: string|Param,
* parameters?: array<string, scalar|Param|null>,
* domain?: string|Param,
* }>,
* },
* validation?: bool|array{ // Validation configuration
* enabled?: bool|Param, // Default: false
* cache?: scalar|Param|null, // Deprecated: Setting the "framework.validation.cache.cache" configuration option is deprecated. It will be removed in version 8.0.
* enable_attributes?: bool|Param, // Default: true
* static_method?: list<scalar|Param|null>,
* translation_domain?: scalar|Param|null, // Default: "validators"
* email_validation_mode?: "html5"|"html5-allow-no-tld"|"strict"|"loose"|Param, // Default: "html5"
* mapping?: array{
* paths?: list<scalar|Param|null>,
* },
* not_compromised_password?: bool|array{
* enabled?: bool|Param, // When disabled, compromised passwords will be accepted as valid. // Default: true
* endpoint?: scalar|Param|null, // API endpoint for the NotCompromisedPassword Validator. // Default: null
* },
* disable_translation?: bool|Param, // Default: false
* auto_mapping?: array<string, array{ // Default: []
* services?: list<scalar|Param|null>,
* }>,
* },
* annotations?: bool|array{
* enabled?: bool|Param, // Default: false
* },
* serializer?: bool|array{ // Serializer configuration
* enabled?: bool|Param, // Default: false
* enable_attributes?: bool|Param, // Default: true
* name_converter?: scalar|Param|null,
* circular_reference_handler?: scalar|Param|null,
* max_depth_handler?: scalar|Param|null,
* mapping?: array{
* paths?: list<scalar|Param|null>,
* },
* default_context?: array<string, mixed>,
* named_serializers?: array<string, array{ // Default: []
* name_converter?: scalar|Param|null,
* default_context?: array<string, mixed>,
* include_built_in_normalizers?: bool|Param, // Whether to include the built-in normalizers // Default: true
* include_built_in_encoders?: bool|Param, // Whether to include the built-in encoders // Default: true
* }>,
* },
* property_access?: bool|array{ // Property access configuration
* enabled?: bool|Param, // Default: false
* magic_call?: bool|Param, // Default: false
* magic_get?: bool|Param, // Default: true
* magic_set?: bool|Param, // Default: true
* throw_exception_on_invalid_index?: bool|Param, // Default: false
* throw_exception_on_invalid_property_path?: bool|Param, // Default: true
* },
* type_info?: bool|array{ // Type info configuration
* enabled?: bool|Param, // Default: false
* aliases?: array<string, scalar|Param|null>,
* },
* property_info?: bool|array{ // Property info configuration
* enabled?: bool|Param, // Default: false
* with_constructor_extractor?: bool|Param, // Registers the constructor extractor.
* },
* cache?: array{ // Cache configuration
* prefix_seed?: scalar|Param|null, // Used to namespace cache keys when using several apps with the same shared backend. // Default: "_%kernel.project_dir%.%kernel.container_class%"
* app?: scalar|Param|null, // App related cache pools configuration. // Default: "cache.adapter.filesystem"
* system?: scalar|Param|null, // System related cache pools configuration. // Default: "cache.adapter.system"
* directory?: scalar|Param|null, // Default: "%kernel.share_dir%/pools/app"
* default_psr6_provider?: scalar|Param|null,
* default_redis_provider?: scalar|Param|null, // Default: "redis://localhost"
* default_valkey_provider?: scalar|Param|null, // Default: "valkey://localhost"
* default_memcached_provider?: scalar|Param|null, // Default: "memcached://localhost"
* default_doctrine_dbal_provider?: scalar|Param|null, // Default: "database_connection"
* default_pdo_provider?: scalar|Param|null, // Default: null
* pools?: array<string, array{ // Default: []
* adapters?: list<scalar|Param|null>,
* tags?: scalar|Param|null, // Default: null
* public?: bool|Param, // Default: false
* default_lifetime?: scalar|Param|null, // Default lifetime of the pool.
* provider?: scalar|Param|null, // Overwrite the setting from the default provider for this adapter.
* early_expiration_message_bus?: scalar|Param|null,
* clearer?: scalar|Param|null,
* }>,
* },
* php_errors?: array{ // PHP errors handling configuration
* log?: mixed, // Use the application logger instead of the PHP logger for logging PHP errors. // Default: true
* throw?: bool|Param, // Throw PHP errors as \ErrorException instances. // Default: true
* },
* exceptions?: array<string, array{ // Default: []
* log_level?: scalar|Param|null, // The level of log message. Null to let Symfony decide. // Default: null
* status_code?: scalar|Param|null, // The status code of the response. Null or 0 to let Symfony decide. // Default: null
* log_channel?: scalar|Param|null, // The channel of log message. Null to let Symfony decide. // Default: null
* }>,
* web_link?: bool|array{ // Web links configuration
* enabled?: bool|Param, // Default: false
* },
* lock?: bool|string|array{ // Lock configuration
* enabled?: bool|Param, // Default: false
* resources?: array<string, string|list<scalar|Param|null>>,
* },
* semaphore?: bool|string|array{ // Semaphore configuration
* enabled?: bool|Param, // Default: false
* resources?: array<string, scalar|Param|null>,
* },
* messenger?: bool|array{ // Messenger configuration
* enabled?: bool|Param, // Default: false
* routing?: array<string, string|array{ // Default: []
* senders?: list<scalar|Param|null>,
* }>,
* serializer?: array{
* default_serializer?: scalar|Param|null, // Service id to use as the default serializer for the transports. // Default: "messenger.transport.native_php_serializer"
* symfony_serializer?: array{
* format?: scalar|Param|null, // Serialization format for the messenger.transport.symfony_serializer service (which is not the serializer used by default). // Default: "json"
* context?: array<string, mixed>,
* },
* },
* transports?: array<string, string|array{ // Default: []
* dsn?: scalar|Param|null,
* serializer?: scalar|Param|null, // Service id of a custom serializer to use. // Default: null
* options?: array<string, mixed>,
* failure_transport?: scalar|Param|null, // Transport name to send failed messages to (after all retries have failed). // Default: null
* retry_strategy?: string|array{
* service?: scalar|Param|null, // Service id to override the retry strategy entirely. // Default: null
* max_retries?: int|Param, // Default: 3
* delay?: int|Param, // Time in ms to delay (or the initial value when multiplier is used). // Default: 1000
* multiplier?: float|Param, // If greater than 1, delay will grow exponentially for each retry: this delay = (delay * (multiple ^ retries)). // Default: 2
* max_delay?: int|Param, // Max time in ms that a retry should ever be delayed (0 = infinite). // Default: 0
* jitter?: float|Param, // Randomness to apply to the delay (between 0 and 1). // Default: 0.1
* },
* rate_limiter?: scalar|Param|null, // Rate limiter name to use when processing messages. // Default: null
* }>,
* failure_transport?: scalar|Param|null, // Transport name to send failed messages to (after all retries have failed). // Default: null
* stop_worker_on_signals?: list<scalar|Param|null>,
* default_bus?: scalar|Param|null, // Default: null
* buses?: array<string, array{ // Default: {"messenger.bus.default":{"default_middleware":{"enabled":true,"allow_no_handlers":false,"allow_no_senders":true},"middleware":[]}}
* default_middleware?: bool|string|array{
* enabled?: bool|Param, // Default: true
* allow_no_handlers?: bool|Param, // Default: false
* allow_no_senders?: bool|Param, // Default: true
* },
* middleware?: list<string|array{ // Default: []
* id?: scalar|Param|null,
* arguments?: list<mixed>,
* }>,
* }>,
* },
* scheduler?: bool|array{ // Scheduler configuration
* enabled?: bool|Param, // Default: false
* },
* disallow_search_engine_index?: bool|Param, // Enabled by default when debug is enabled. // Default: true
* http_client?: bool|array{ // HTTP Client configuration
* enabled?: bool|Param, // Default: false
* max_host_connections?: int|Param, // The maximum number of connections to a single host.
* default_options?: array{
* headers?: array<string, mixed>,
* vars?: array<string, mixed>,
* max_redirects?: int|Param, // The maximum number of redirects to follow.
* http_version?: scalar|Param|null, // The default HTTP version, typically 1.1 or 2.0, leave to null for the best version.
* resolve?: array<string, scalar|Param|null>,
* proxy?: scalar|Param|null, // The URL of the proxy to pass requests through or null for automatic detection.
* no_proxy?: scalar|Param|null, // A comma separated list of hosts that do not require a proxy to be reached.
* timeout?: float|Param, // The idle timeout, defaults to the "default_socket_timeout" ini parameter.
* max_duration?: float|Param, // The maximum execution time for the request+response as a whole.
* bindto?: scalar|Param|null, // A network interface name, IP address, a host name or a UNIX socket to bind to.
* verify_peer?: bool|Param, // Indicates if the peer should be verified in a TLS context.
* verify_host?: bool|Param, // Indicates if the host should exist as a certificate common name.
* cafile?: scalar|Param|null, // A certificate authority file.
* capath?: scalar|Param|null, // A directory that contains multiple certificate authority files.
* local_cert?: scalar|Param|null, // A PEM formatted certificate file.
* local_pk?: scalar|Param|null, // A private key file.
* passphrase?: scalar|Param|null, // The passphrase used to encrypt the "local_pk" file.
* ciphers?: scalar|Param|null, // A list of TLS ciphers separated by colons, commas or spaces (e.g. "RC3-SHA:TLS13-AES-128-GCM-SHA256"...)
* peer_fingerprint?: array{ // Associative array: hashing algorithm => hash(es).
* sha1?: mixed,
* pin-sha256?: mixed,
* md5?: mixed,
* },
* crypto_method?: scalar|Param|null, // The minimum version of TLS to accept; must be one of STREAM_CRYPTO_METHOD_TLSv*_CLIENT constants.
* extra?: array<string, mixed>,
* rate_limiter?: scalar|Param|null, // Rate limiter name to use for throttling requests. // Default: null
* caching?: bool|array{ // Caching configuration.
* enabled?: bool|Param, // Default: false
* cache_pool?: string|Param, // The taggable cache pool to use for storing the responses. // Default: "cache.http_client"
* shared?: bool|Param, // Indicates whether the cache is shared (public) or private. // Default: true
* max_ttl?: int|Param, // The maximum TTL (in seconds) allowed for cached responses. Null means no cap. // Default: null
* },
* retry_failed?: bool|array{
* enabled?: bool|Param, // Default: false
* retry_strategy?: scalar|Param|null, // service id to override the retry strategy. // Default: null
* http_codes?: array<string, array{ // Default: []
* code?: int|Param,
* methods?: list<string|Param>,
* }>,
* max_retries?: int|Param, // Default: 3
* delay?: int|Param, // Time in ms to delay (or the initial value when multiplier is used). // Default: 1000
* multiplier?: float|Param, // If greater than 1, delay will grow exponentially for each retry: delay * (multiple ^ retries). // Default: 2
* max_delay?: int|Param, // Max time in ms that a retry should ever be delayed (0 = infinite). // Default: 0
* jitter?: float|Param, // Randomness in percent (between 0 and 1) to apply to the delay. // Default: 0.1
* },
* },
* mock_response_factory?: scalar|Param|null, // The id of the service that should generate mock responses. It should be either an invokable or an iterable.
* scoped_clients?: array<string, string|array{ // Default: []
* scope?: scalar|Param|null, // The regular expression that the request URL must match before adding the other options. When none is provided, the base URI is used instead.
* base_uri?: scalar|Param|null, // The URI to resolve relative URLs, following rules in RFC 3985, section 2.
* auth_basic?: scalar|Param|null, // An HTTP Basic authentication "username:password".
* auth_bearer?: scalar|Param|null, // A token enabling HTTP Bearer authorization.
* auth_ntlm?: scalar|Param|null, // A "username:password" pair to use Microsoft NTLM authentication (requires the cURL extension).
* query?: array<string, scalar|Param|null>,
* headers?: array<string, mixed>,
* max_redirects?: int|Param, // The maximum number of redirects to follow.
* http_version?: scalar|Param|null, // The default HTTP version, typically 1.1 or 2.0, leave to null for the best version.
* resolve?: array<string, scalar|Param|null>,
* proxy?: scalar|Param|null, // The URL of the proxy to pass requests through or null for automatic detection.
* no_proxy?: scalar|Param|null, // A comma separated list of hosts that do not require a proxy to be reached.
* timeout?: float|Param, // The idle timeout, defaults to the "default_socket_timeout" ini parameter.
* max_duration?: float|Param, // The maximum execution time for the request+response as a whole.
* bindto?: scalar|Param|null, // A network interface name, IP address, a host name or a UNIX socket to bind to.
* verify_peer?: bool|Param, // Indicates if the peer should be verified in a TLS context.
* verify_host?: bool|Param, // Indicates if the host should exist as a certificate common name.
* cafile?: scalar|Param|null, // A certificate authority file.
* capath?: scalar|Param|null, // A directory that contains multiple certificate authority files.
* local_cert?: scalar|Param|null, // A PEM formatted certificate file.
* local_pk?: scalar|Param|null, // A private key file.
* passphrase?: scalar|Param|null, // The passphrase used to encrypt the "local_pk" file.
* ciphers?: scalar|Param|null, // A list of TLS ciphers separated by colons, commas or spaces (e.g. "RC3-SHA:TLS13-AES-128-GCM-SHA256"...).
* peer_fingerprint?: array{ // Associative array: hashing algorithm => hash(es).
* sha1?: mixed,
* pin-sha256?: mixed,
* md5?: mixed,
* },
* crypto_method?: scalar|Param|null, // The minimum version of TLS to accept; must be one of STREAM_CRYPTO_METHOD_TLSv*_CLIENT constants.
* extra?: array<string, mixed>,
* rate_limiter?: scalar|Param|null, // Rate limiter name to use for throttling requests. // Default: null
* caching?: bool|array{ // Caching configuration.
* enabled?: bool|Param, // Default: false
* cache_pool?: string|Param, // The taggable cache pool to use for storing the responses. // Default: "cache.http_client"
* shared?: bool|Param, // Indicates whether the cache is shared (public) or private. // Default: true
* max_ttl?: int|Param, // The maximum TTL (in seconds) allowed for cached responses. Null means no cap. // Default: null
* },
* retry_failed?: bool|array{
* enabled?: bool|Param, // Default: false
* retry_strategy?: scalar|Param|null, // service id to override the retry strategy. // Default: null
* http_codes?: array<string, array{ // Default: []
* code?: int|Param,
* methods?: list<string|Param>,
* }>,
* max_retries?: int|Param, // Default: 3
* delay?: int|Param, // Time in ms to delay (or the initial value when multiplier is used). // Default: 1000
* multiplier?: float|Param, // If greater than 1, delay will grow exponentially for each retry: delay * (multiple ^ retries). // Default: 2
* max_delay?: int|Param, // Max time in ms that a retry should ever be delayed (0 = infinite). // Default: 0
* jitter?: float|Param, // Randomness in percent (between 0 and 1) to apply to the delay. // Default: 0.1
* },
* }>,
* },
* mailer?: bool|array{ // Mailer configuration
* enabled?: bool|Param, // Default: false
* message_bus?: scalar|Param|null, // The message bus to use. Defaults to the default bus if the Messenger component is installed. // Default: null
* dsn?: scalar|Param|null, // Default: null
* transports?: array<string, scalar|Param|null>,
* envelope?: array{ // Mailer Envelope configuration
* sender?: scalar|Param|null,
* recipients?: list<scalar|Param|null>,
* allowed_recipients?: list<scalar|Param|null>,
* },
* headers?: array<string, string|array{ // Default: []
* value?: mixed,
* }>,
* dkim_signer?: bool|array{ // DKIM signer configuration
* enabled?: bool|Param, // Default: false
* key?: scalar|Param|null, // Key content, or path to key (in PEM format with the `file://` prefix) // Default: ""
* domain?: scalar|Param|null, // Default: ""
* select?: scalar|Param|null, // Default: ""
* passphrase?: scalar|Param|null, // The private key passphrase // Default: ""
* options?: array<string, mixed>,
* },
* smime_signer?: bool|array{ // S/MIME signer configuration
* enabled?: bool|Param, // Default: false
* key?: scalar|Param|null, // Path to key (in PEM format) // Default: ""
* certificate?: scalar|Param|null, // Path to certificate (in PEM format without the `file://` prefix) // Default: ""
* passphrase?: scalar|Param|null, // The private key passphrase // Default: null
* extra_certificates?: scalar|Param|null, // Default: null
* sign_options?: int|Param, // Default: null
* },
* smime_encrypter?: bool|array{ // S/MIME encrypter configuration
* enabled?: bool|Param, // Default: false
* repository?: scalar|Param|null, // S/MIME certificate repository service. This service shall implement the `Symfony\Component\Mailer\EventListener\SmimeCertificateRepositoryInterface`. // Default: ""
* cipher?: int|Param, // A set of algorithms used to encrypt the message // Default: null
* },
* },
* secrets?: bool|array{
* enabled?: bool|Param, // Default: true
* vault_directory?: scalar|Param|null, // Default: "%kernel.project_dir%/config/secrets/%kernel.runtime_environment%"
* local_dotenv_file?: scalar|Param|null, // Default: "%kernel.project_dir%/.env.%kernel.environment%.local"
* decryption_env_var?: scalar|Param|null, // Default: "base64:default::SYMFONY_DECRYPTION_SECRET"
* },
* notifier?: bool|array{ // Notifier configuration
* enabled?: bool|Param, // Default: false
* message_bus?: scalar|Param|null, // The message bus to use. Defaults to the default bus if the Messenger component is installed. // Default: null
* chatter_transports?: array<string, scalar|Param|null>,
* texter_transports?: array<string, scalar|Param|null>,
* notification_on_failed_messages?: bool|Param, // Default: false
* channel_policy?: array<string, string|list<scalar|Param|null>>,
* admin_recipients?: list<array{ // Default: []
* email?: scalar|Param|null,
* phone?: scalar|Param|null, // Default: ""
* }>,
* },
* rate_limiter?: bool|array{ // Rate limiter configuration
* enabled?: bool|Param, // Default: true
* limiters?: array<string, array{ // Default: []
* lock_factory?: scalar|Param|null, // The service ID of the lock factory used by this limiter (or null to disable locking). // Default: "auto"
* cache_pool?: scalar|Param|null, // The cache pool to use for storing the current limiter state. // Default: "cache.rate_limiter"
* storage_service?: scalar|Param|null, // The service ID of a custom storage implementation, this precedes any configured "cache_pool". // Default: null
* policy?: "fixed_window"|"token_bucket"|"sliding_window"|"compound"|"no_limit"|Param, // The algorithm to be used by this limiter.
* limiters?: list<scalar|Param|null>,
* limit?: int|Param, // The maximum allowed hits in a fixed interval or burst.
* interval?: scalar|Param|null, // Configures the fixed interval if "policy" is set to "fixed_window" or "sliding_window". The value must be a number followed by "second", "minute", "hour", "day", "week" or "month" (or their plural equivalent).
* rate?: array{ // Configures the fill rate if "policy" is set to "token_bucket".
* interval?: scalar|Param|null, // Configures the rate interval. The value must be a number followed by "second", "minute", "hour", "day", "week" or "month" (or their plural equivalent).
* amount?: int|Param, // Amount of tokens to add each interval. // Default: 1
* },
* }>,
* },
* uid?: bool|array{ // Uid configuration
* enabled?: bool|Param, // Default: true
* default_uuid_version?: 7|6|4|1|Param, // Default: 7
* name_based_uuid_version?: 5|3|Param, // Default: 5
* name_based_uuid_namespace?: scalar|Param|null,
* time_based_uuid_version?: 7|6|1|Param, // Default: 7
* time_based_uuid_node?: scalar|Param|null,
* },
* html_sanitizer?: bool|array{ // HtmlSanitizer configuration
* enabled?: bool|Param, // Default: false
* sanitizers?: array<string, array{ // Default: []
* allow_safe_elements?: bool|Param, // Allows "safe" elements and attributes. // Default: false
* allow_static_elements?: bool|Param, // Allows all static elements and attributes from the W3C Sanitizer API standard. // Default: false
* allow_elements?: array<string, mixed>,
* block_elements?: list<string|Param>,
* drop_elements?: list<string|Param>,
* allow_attributes?: array<string, mixed>,
* drop_attributes?: array<string, mixed>,
* force_attributes?: array<string, array<string, string|Param>>,
* force_https_urls?: bool|Param, // Transforms URLs using the HTTP scheme to use the HTTPS scheme instead. // Default: false
* allowed_link_schemes?: list<string|Param>,
* allowed_link_hosts?: list<string|Param>|null,
* allow_relative_links?: bool|Param, // Allows relative URLs to be used in links href attributes. // Default: false
* allowed_media_schemes?: list<string|Param>,
* allowed_media_hosts?: list<string|Param>|null,
* allow_relative_medias?: bool|Param, // Allows relative URLs to be used in media source attributes (img, audio, video, ...). // Default: false
* with_attribute_sanitizers?: list<string|Param>,
* without_attribute_sanitizers?: list<string|Param>,
* max_input_length?: int|Param, // The maximum length allowed for the sanitized input. // Default: 0
* }>,
* },
* webhook?: bool|array{ // Webhook configuration
* enabled?: bool|Param, // Default: false
* message_bus?: scalar|Param|null, // The message bus to use. // Default: "messenger.default_bus"
* routing?: array<string, array{ // Default: []
* service?: scalar|Param|null,
* secret?: scalar|Param|null, // Default: ""
* }>,
* },
* remote-event?: bool|array{ // RemoteEvent configuration
* enabled?: bool|Param, // Default: false
* },
* json_streamer?: bool|array{ // JSON streamer configuration
* enabled?: bool|Param, // Default: false
* },
* }
* @psalm-type TwigConfig = array{
* form_themes?: list<scalar|Param|null>,
* globals?: array<string, array{ // Default: []
* id?: scalar|Param|null,
* type?: scalar|Param|null,
* value?: mixed,
* }>,
* autoescape_service?: scalar|Param|null, // Default: null
* autoescape_service_method?: scalar|Param|null, // Default: null
* base_template_class?: scalar|Param|null, // Deprecated: The child node "base_template_class" at path "twig.base_template_class" is deprecated.
* cache?: scalar|Param|null, // Default: true
* charset?: scalar|Param|null, // Default: "%kernel.charset%"
* debug?: bool|Param, // Default: "%kernel.debug%"
* strict_variables?: bool|Param, // Default: "%kernel.debug%"
* auto_reload?: scalar|Param|null,
* optimizations?: int|Param,
* default_path?: scalar|Param|null, // The default path used to load templates. // Default: "%kernel.project_dir%/templates"
* file_name_pattern?: list<scalar|Param|null>,
* paths?: array<string, mixed>,
* date?: array{ // The default format options used by the date filter.
* format?: scalar|Param|null, // Default: "F j, Y H:i"
* interval_format?: scalar|Param|null, // Default: "%d days"
* timezone?: scalar|Param|null, // The timezone used when formatting dates, when set to null, the timezone returned by date_default_timezone_get() is used. // Default: null
* },
* number_format?: array{ // The default format options for the number_format filter.
* decimals?: int|Param, // Default: 0
* decimal_point?: scalar|Param|null, // Default: "."
* thousands_separator?: scalar|Param|null, // Default: ","
* },
* mailer?: array{
* html_to_text_converter?: scalar|Param|null, // A service implementing the "Symfony\Component\Mime\HtmlToTextConverter\HtmlToTextConverterInterface". // Default: null
* },
* }
* @psalm-type ConfigType = array{
* imports?: ImportsConfig,
* parameters?: ParametersConfig,
* services?: ServicesConfig,
* framework?: FrameworkConfig,
* twig?: TwigConfig,
* "when@dev"?: array{
* imports?: ImportsConfig,
* parameters?: ParametersConfig,
* services?: ServicesConfig,
* framework?: FrameworkConfig,
* twig?: TwigConfig,
* },
* "when@prod"?: array{
* imports?: ImportsConfig,
* parameters?: ParametersConfig,
* services?: ServicesConfig,
* framework?: FrameworkConfig,
* twig?: TwigConfig,
* },
* ...<string, ExtensionType|array{ // extra keys must follow the when@%env% pattern or match an extension alias
* imports?: ImportsConfig,
* parameters?: ParametersConfig,
* services?: ServicesConfig,
* ...<string, ExtensionType>,
* }>
* }
*/
final class App
{
/**
* @param ConfigType $config
*
* @psalm-return ConfigType
*/
public static function config(array $config): array
{
/** @var ConfigType $config */
$config = AppReference::config($config);
return $config;
}
}
namespace Symfony\Component\Routing\Loader\Configurator;
/**
* This class provides array-shapes for configuring the routes of an application.
*
* Example:
*
* ```php
* // config/routes.php
* namespace Symfony\Component\Routing\Loader\Configurator;
*
* return Routes::config([
* 'controllers' => [
* 'resource' => 'routing.controllers',
* ],
* ]);
* ```
*
* @psalm-type RouteConfig = array{
* path: string|array<string,string>,
* controller?: string,
* methods?: string|list<string>,
* requirements?: array<string,string>,
* defaults?: array<string,mixed>,
* options?: array<string,mixed>,
* host?: string|array<string,string>,
* schemes?: string|list<string>,
* condition?: string,
* locale?: string,
* format?: string,
* utf8?: bool,
* stateless?: bool,
* }
* @psalm-type ImportConfig = array{
* resource: string,
* type?: string,
* exclude?: string|list<string>,
* prefix?: string|array<string,string>,
* name_prefix?: string,
* trailing_slash_on_root?: bool,
* controller?: string,
* methods?: string|list<string>,
* requirements?: array<string,string>,
* defaults?: array<string,mixed>,
* options?: array<string,mixed>,
* host?: string|array<string,string>,
* schemes?: string|list<string>,
* condition?: string,
* locale?: string,
* format?: string,
* utf8?: bool,
* stateless?: bool,
* }
* @psalm-type AliasConfig = array{
* alias: string,
* deprecated?: array{package:string, version:string, message?:string},
* }
* @psalm-type RoutesConfig = array{
* "when@dev"?: array<string, RouteConfig|ImportConfig|AliasConfig>,
* "when@prod"?: array<string, RouteConfig|ImportConfig|AliasConfig>,
* ...<string, RouteConfig|ImportConfig|AliasConfig>
* }
*/
final class Routes
{
/**
* @param RoutesConfig $config
*
* @psalm-return RoutesConfig
*/
public static function config(array $config): array
{
return $config;
}
}
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# yaml-language-server: $schema=../vendor/symfony/dependency-injection/Loader/schema/services.schema.json
# This file is the entry point to configure your own services.
# Files in the packages/ subdirectory configure your dependencies.
# See also https://symfony.com/doc/current/service_container/import.html
# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices.html
# #use-parameters-for-application-configuration
parameters:
# --- main options ---
# URI containing secret and config for TOTP, which determines the token to login
# app will generate one, if not provided, but you should copy it to your .env file
# format: "otpauth://totp/<label>?secret=<secret-key>"
env(TOTP_URI): '' # blank to have the app generate one at random
# how long will someone stay logged in, measured in seconds, zero for DEFAULT
env(COOKIE_TTL): '2592000' # default 30 days
# Enable optional redirection to a dedicated authentication subdomain
env(SUBDOMAIN_REDIRECT): '0' # boolean, 1 to enable
# The subdomain (e.g., auth.example.com) to which unauthenticated users are redirected
env(AUTH_SUBDOMAIN): ''
# --- extra options ---
# how long do we allow all traffic from an ip address after successful login
# could be useful if you have a system which does not handle cookies
env(IP_TTL): '0' # default disabled, time in seconds
# once blocked, do we respond with "I'm a teapot", false to use "Too many requests"
env(TEAPOT): '1' # boolean
# --- rate limiting ---
# Note: rate limiting can *NOT* be disabled, but you could allow hundreds of logins a second
# rate limiting, default is the lower of 2 per 30 seconds or 10 per hour
env(BURST_COUNT): 2 # 2 per 30 seconds
env(BURST_TIME): 30 # seconds
env(UPPER_COUNT): 10 # 10 per hour
env(UPPER_TIME): 3600 # seconds (1 hour)
# --- styling options ---
env(TITLE): 'Pre-Authentication System'
env(BG_COLOR): '#029386' # teal
env(FG_COLOR): '#ffffff' # white
env(ERROR_COLOR): '#ffb16d' # apricot (light orange)
env(ID_NAME): 'Session ID'
env(TOKEN_NAME): 'Authentication Token'
env(SUBMIT_NAME): 'Submit'
env(ERROR_MESSAGE): 'Unsuccessful login attempt'
# title and message to use on block page, if teapot is true
env(TEAPOT_TITLE): "I'm a teapot"
env(TEAPOT_MESSAGE): 'I refuse to brew coffee'
# title and message to use on block page, if teapot is false
env(TOO_MANY_TITLE): 'Too many requests'
env(TOO_MANY_MESSAGE): 'Try again later'
# --- debug options ---
env(SHELL_VERBOSITY): '0' # set to 3 to log debug
# --- application variables ---
app.totp_uri: '%env(TOTP_URI)%'
app.cookie_ttl: '%env(COOKIE_TTL)%'
app.subdomain_redirect: '%env(SUBDOMAIN_REDIRECT)%'
app.auth_subdomain: '%env(AUTH_SUBDOMAIN)%'
app.ip_ttl: '%env(IP_TTL)%'
app.teapot: '%env(TEAPOT)%'
app.error_message: '%env(ERROR_MESSAGE)%'
app.teapot_title: '%env(TEAPOT_TITLE)%'
app.too_many_title: '%env(TOO_MANY_TITLE)%'
services:
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services.
# makes classes in src/ available to be used as services
# this creates a service per class whose id is the fully-qualified class name
App\:
resource: '../src/'
# add more service definitions when explicit configuration is needed
# please note that last definitions always *replace* previous ones
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# example of securing full service
# TODO replace domain and service name and port
service.example.com {
forward_auth preauth {
uri {uri}
copy_headers Remote-User
}
reverse_proxy service-container:80
}
# you can choose to only restrict select paths
# or any other Caddy match criteria, if desired
# IE: https://protected.example.com/secure/
protected.example.com {
# note any request that does not start with "/secure/" is NOT protected
forward_auth /secure/* preauth {
uri {uri}
copy_headers Remote-User
}
reverse_proxy protected-service:9000
}
# optionally, if you want to use a subdomain for centeral preauth
# set SUBDOMAIN_REDIRECT to true
# and AUTH_SUBDOMAIN to match the subdomain you use here
auth.example.com {
reverse_proxy preauth
}
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services:
preauth:
env_file:
# TODO rename "example.env" to ".env", edit as needed
# strongly recommend setting TOTP_URI, if not provided the app
# will generate one for you, please copy it into your .env file
- .env
expose:
- 80
image: digitaladapt/preauth:latest
restart: unless-stopped
# if you wish to set the user, you must make sure that the user
# can write to /config and /data within the container
#user: <uid>:<gid>
volumes:
- preauth-config:/config
- preauth-data:/data
volumes:
preauth-config:
preauth-data:
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# --- main options ---
# URI containing secret and config for TOTP, which determines the token to login
# app will generate one, if not provided, but you should copy it to your .env file
# format: "otpauth://totp/<label>?secret=<secret-key>"
#TOTP_URI='' # blank to have the app generate one at random
# how long will someone stay logged in, measured in seconds, zero for DEFAULT
#COOKIE_TTL=2592000 # default 30 days
# we can use a central auth, so that users only need to login once to have access to
# multiple services. Requires using sub-domains under the same domain.
# IE: if enabled have "service-one.example.com" redirect "auth.example.com", and after
# successful auth, user can visit "service-two.example.com" without having to login again.
#SUBDOMAIN_REDIRECT=false # default disabled, boolean
#AUTH_SUBDOMAIN='' # blank, hostname we send user to, to see login page
# --- extra options ---
# how long do we allow *ALL* traffic from an ip address after successful login
# could be useful if you have a system which does not handle cookies
#IP_TTL=0 # default disabled, time in seconds
# once blocked, do we respond with "I'm a teapot", false to use "Too many requests"
#TEAPOT=true # default enabled, boolean
# --- rate limiting ---
# Note: rate limiting can *NOT* be disabled, but you could allow hundreds of logins a second
# rate limiting, default is the lower of 2 per 30 seconds or 10 per hour
#BURST_COUNT=2 # 2 per 30 seconds
#BURST_TIME=30 # seconds
#UPPER_COUNT=10 # 10 per hour
#UPPER_TIME=3600 # seconds (1 hour)
# --- styling options ---
#TITLE='Pre-Authentication System'
#BG_COLOR='#029386' # teal
#FG_COLOR='#ffffff' # white
#ERROR_COLOR='#ffb16d' # apricot (light orange)
#ID_NAME='Session ID'
#TOKEN_NAME='Authentication Token'
#SUBMIT_NAME='Submit'
#ERROR_MESSAGE='Unsuccessful login attempt'
# title and message to use on block page, if teapot is true
#TEAPOT_TITLE="I'm a teapot"
#TEAPOT_MESSAGE='I refuse to brew coffee'
# title and message to use on block page, if teapot is false
#TOO_MANY_TITLE='Too many requests'
#TOO_MANY_MESSAGE='Try again later'
# --- debug options ---
#SHELL_VERBOSITY=0 # set to "3" to log debug
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<?php
/* do garbage collection on rate limit monitoring sessions */
session_start();
$success = session_gc();
session_destroy();
if ($success !== false) {
/* if garbage collection was successful, report that we are healthy */
echo implode('', ['o', 'n', 'l', 'i', 'n', 'e', "\n"]);
} else {
echo "error\n";
}
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<?php
declare(strict_types=1);
$key = getenv('PREAUTH_KEY');
// generate a new key, if not specified
if ( ! $key) {
$key = base64_encode(random_bytes(64));
error_log("ERROR: PREAUTH_KEY is not set, generating a random session encryption key:\n'$key'\nupdate your config or it will be regenerated when you restart.");
}
echo $key;
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<?php
declare(strict_types=1);
require __DIR__ . '/vendor/autoload.php';
use OTPHP\TOTP;
$token = getenv('PREAUTH_TOKEN');
// generate a new token, if not specified
if ( ! $token) {
$token = TOTP::generate()->getSecret();
error_log("ERROR: PREAUTH_TOKEN is not set, generating random TOTP token:\n'$token'\nupdate your config or it will be regenerated when you restart.");
}
echo $token;
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#!/bin/sh
# ensure we have required folders
`mkdir -p /tmp/data/sessions`
`mkdir -p /tmp/data/monitor`
# ensure we have required settings
if [ -z "$PREAUTH_KEY" ]; then
export PREAUTH_KEY=$(cd /preauth && php init-key.php)
fi
if [ -z "$PREAUTH_TOKEN" ]; then
export PREAUTH_TOKEN=$(cd /preauth && php init-token.php)
fi
# start the process, now that setup is done
exec php-fpm
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; preauth uses php sessions to store usage statistics by IP address and is used for rate limiting
; login sessions are stored as file in /tmp/data/sessions, and are unrelated to this configuration
; sessions are IP based, cookie not needed nor wanted
session.use_cookies = off
; deprecated in php 8.4
;session.use_only_cookies = off
session.cache_limiter = ''
session.name = preauth
session.save_path = /tmp/data/monitor
; seconds until a session may be pruned
; IE: maximum time range to review for rate limiting and
; maximum time an IP address can be blocked
; 86400 seconds aka 24 hours hardcoded upper limit
session.gc_maxlifetime = 86400
; disable random random garbage collection
; our healthcheck runs session_gc function
session.gc_probability = 0
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<?php
declare(strict_types=1);
require __DIR__ . '/vendor/autoload.php';
use Preauth\Auth;
/* kickoff the script */
$auth = new Auth($_SERVER['HTTP_HOST'] ?? 'example.com');
$auth->run();
/* no additional output most of the time, sometimes we'll continue to display the login screen */
if ($auth->showTemplate()) {
include __DIR__ . '/template.php';
}
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<?php
declare(strict_types=1);
use App\Kernel;
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};
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# Preauth
Pre-authorization, because sometimes you need both a belt and suspenders.
For when you want to expose a web service without letting the whole world try to access it. Because sometimes you want both a belt and suspenders.
The goal of this is to make it as simple as possible to put a web service behind an extra layer of authentication.
I found myself needing to make my personal Nextcloud instance available outside my VPN, but was worried since it has had authentication exploits in the past.
Maybe you need the extra protection because it's a very sensitive system, or because it's a legacy system with known security issues.
So, I built a simple authentication gateway, which eventually turned into this project.
It sits between your reverse proxy and web service to add extra protection, while still being easy to access from anywhere.
## Requirements
* Docker
* Caddy (as a reverse proxy)
* a domain
* a web service you want to secure
It may be possible to use some other reverse proxy, but for now, I'm going to stick with just Caddy.
There is an example Caddyfile and example .env file to get you started. Within the Caddyfile is a snippet, which makes it easy to wrap your web service with preauth.
There is an example Caddyfile in /docs/ and env.example file to get you started. Within the Caddyfile is a snippet, which makes it easy to wrap your web service with preauth.
Preauth will need a subdomain on the same domain as the service it's securing, the default is "preauth", but you can use whatever you want.
When someone tries to reach your protected web service, Caddy will check with preauth if they are allowed, if their preauth cookie is missing, invalid, or expired, we will show them to a login screen.
When someone tries to reach your protected web service, Caddy will check with preauth if they are allowed, if their preauth cookie is missing, invalid, or expired, we will redirect them to a login screen.
I say login, but it's really just a TOTP code (6-digit code which changes every 30 second). But once they enter the right code,they'll get their cookie and be shown the protected service. It is also possible to allow all requests from an approved IP address, but that is disabled by default.
I say login, but it's really just a TOTP code (6 digit code which changes every 30 second). But once they enter the right code,they'll get their cookie and be redirected to the protected service.
First time you spin up the docker container it will generate a TOTP secret (which you'll load into your authenticator app); or generate you own.
First time you spin up the docker container it will generate an encryption key for session storage, and the TOTP secret (which you'll load into your authenticator app).
Be sure to save that TOTP secret to your docker environment, so that it persists beyond removing the container.
Be sure to save those and add them to the containers environment, or it will generate new values every time it restarts.
## Backup Codes
It is possible to generate single-use backup codes via a console command within the docker container.
```shell
docker exec -t preauth bin/console app:generate-backup-codes [count=10]
```
### History
#### v0.7.0 (May 29th, 2026)
Added ability to generate single-use backup codes.
Removed static password and lookup token, as they were security risks.
Updated to PHP 8.5, updated dependencies.
#### v0.6.0 (Feb 10th, 2026)
Added optional (disabled by default) ability to lookup token by static password.
#### v0.5.0 (Jan 17th, 2026)
Nonce related cleanup; added optional (disabled by default) ability to use a static password as a backup means of authentication.
#### v0.4.1 (Dec 26th, 2025)
Fixed bug which can occur if you delete cache files.
#### v0.4.0 (Dec 26th, 2025)
Massive rewrite to switch to using listeners instead of controller, header for login payload instead of get request, removed icon system, asset system, was able to remove all the domain processing, enhanced cookie security, and more.
#### v0.3.0 (Dec 15th, 2025)
Includes significant breaking changes.
Default port and transportation changed to http via port 80.
Names of environment variables have changed.
#### v0.2.0 (Dec 3rd, 2025)
Now with login rate limiting.
New page for client error (too many requests).
Made example docker compose.
#### v0.1.0 (Nov 14th, 2025)
Now an actual project, docker image pushed to docker hub, which uses php-fpm, code into a src folder, templates into separate files.
#### v0.0.1 (June 26th, 2024)
Started off as a single file script which was part of my caddy config. Hardcoded TOTP secret, zero flexibility, but functional. Would stay like that, quietly working in production for about a full year before any real change.
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<?php
declare(strict_types=1);
namespace Preauth;
use OTPHP\TOTP;
use Symfony\Component\HttpFoundation\IpUtils;
use Symfony\Component\Uid\Uuid;
class Auth {
/* name of the return-to field */
public const RETURN_FIELD = 'preauth_rt';
/* name of the id field */
public const ID_FIELD = 'preauth_id';
/* name of the token field */
public const TOKEN_FIELD = 'preauth_token';
/* the encryption cipher we are using */
private const CIPHER = 'camellia-256-ctr';
/* only allow A-z 0-9 _ - */
private const URL64 = '/[^A-Za-z0-9_-]+/';
/* cookie name */
private const NAME = '_auth_uuid';
/* directory to store sessions in */
private const BASE = '/tmp/data/sessions/';
/* top-level-domains which are known to have multiple parts */
private const TLD = [
'ai' => ['com','net','off','org'],
'am' => ['radio'],
'com' => ['br','cn','co','de','eu','gr','it','jpn','mex','ru','sa','uk','us','za'],
'de' => ['com'],
'fm' => ['radio'],
'gg' => ['co','net','org'],
'in' => ['co','firm','gen','ind','net','org'],
'je' => ['co','net','org'],
'mx' => ['com','net','org'],
'net' => ['gb','hu','in','jp','se','uk'],
'nz' => ['co','net','org'],
'org' => ['ae','us'],
'ph' => ['com','net','org'],
'se' => ['com'],
'uk' => ['co','me','org'],
];
/** @var string $preauth subdomain (without domain) the login page will use */
private string $preauth;
/** @var string $domain domain (without subdomains) we are controlling auth for */
private string $domain;
/** @var int $expire time-to-live of auth cookie */
private int $expire;
/** @var array $get like $_GET, but based on data given by reverse proxy */
private array $get = [];
/** @var string $key secret for encryption to store sessions */
private string $key;
/** @var string $token secret for 2FA token */
private string $token;
/** @var bool $stop set to false to print login page */
private bool $stop = true;
/** @var string $id user provided name for their session */
private string $id;
/**
* @param string $host domain which auth is relative to
*/
public function __construct(string $host) {
$this->preauth = getenv('PREAUTH_SUBDOMAIN') ?: 'preauth';
$this->domain = $this->baseDomain($host);
$this->key = base64_decode(getenv('PREAUTH_KEY') ?: '');
$this->token = getenv('PREAUTH_TOKEN') ?: '';
$this->expire = time() + 60 * ((int)getenv('PREAUTH_TTL') ?: 43200);
parse_str((parse_url((
$_SERVER['HTTP_X_FORWARDED_URI'] ?? ''
), PHP_URL_QUERY) ?: ''), $this->get);
}
/**
* @return boolean returns true if we should display login page, false if we are done
*/
public function showTemplate(): bool {
return ( ! $this->stop);
}
/**
* @return string returns the return-to-url, if one was specified, empty string otherwise
*/
public function getReturnTo(): string {
$rt = $this->get[self::RETURN_FIELD] ?? '';
if ( ! is_string($rt)) {
$rt = '';
}
return $rt;
}
/**
* @return string returns our current domain with all subdomains removed
*/
public function getBaseDomain(): string {
return $this->domain;
}
/**
* Entry point of code, review request and determine course of action
*/
public function run(): void {
if ( ! $this->key || ! $this->token) {
$this->die();
}
/* already logged in with valid session, return 200, so caddy permits request */
$uuid = $this->getExistingUUID();
if ($uuid) {
echo "ok $this->id";
return;
}
/* if too many requests (from the remote-ip), then trigger rate limiting */
if ($this->rateLimit()) {
include __DIR__ . '/../400.php';
exit(0);
}
/* if request is valid login attempt, (set cookie and) return to where they came from */
if ($this->login()) {
if ($this->getReturnTo()) {
header("Location: {$this->getReturnTo()}");
} else if (getenv('PREAUTH_SEND_TO')) {
header("Location: " . getenv('PREAUTH_SEND_TO'));
}
echo "ok $this->id";
return;
}
/* not already logged in, but on auth page, so present login screen */
/* either not trying to login or had a failed login attempt */
if ($_SERVER['HTTP_HOST'] === "$this->preauth.$this->domain") {
header('http/1.1 401 Unauthorized', true, 401);
$this->stop = false;
} else {
/* not already logged in, not trying to login, and not on auth page */
/* so send to login screen */
$query = self::RETURN_FIELD . '=' . rawurlencode(
($_SERVER['HTTP_X_FORWARDED_PROTO'] ?? 'https') . '://' .
($_SERVER['HTTP_X_FORWARDED_HOST'] ?? $this->domain) .
($_SERVER['HTTP_X_FORWARDED_URI'] ?? '/')
);
header("Location: https://$this->preauth.$this->domain/?$query");
}
}
/**
* This lets us determine the base domain:
* "service.example.co.uk" into "example.co.uk" and "service.example.com" into "example.com"
* @param string $host domain with zero or more subdomains
* @return string returns same domain with all subdomains removed
*/
private function baseDomain(string $host): string {
$parts = array_reverse(explode('.', $host));
$keep = min(2, count($parts));
/* check if host should retain 3 parts, due to TLD */
if (count($parts) > 2 && isset(self::TLD[$parts[0]]) &&
in_array($parts[1], self::TLD[$parts[0]], true)
) {
$keep = 3;
}
$parts = array_reverse(array_slice($parts, 0, $keep));
return implode('.', $parts);
}
/**
* Stop, critical server config issue
*/
private function die(): string {
error_log('PREAUTH_KEY and/or PREAUTH_TOKEN are not set, unable to continue.');
header('http/1.1 500 Internal Server Error', true, 500);
include __DIR__ . '/../500.php';
exit(0);
}
/**
* @return string|null returns the existing UUID if there is valid one, null otherwise
*/
private function getExistingUUID(): ?string {
/* filter user input */
$encUUID = preg_replace(self::URL64, '', ($_COOKIE[self::NAME] ?? ''));
/* session exists as a file where the filename is the encoded-uuid */
/* in the format '<iv-b64>$<session-name>$<expiration>$<date>$<remote-host>' */
if ($encUUID && is_file(self::BASE . $encUUID)) {
[$iv, $id, $expire] = explode('$', (file_get_contents(
self::BASE . $encUUID
) ?: '') . '$$');
if ($iv) {
/* raw-uuid means not encoded, but still encrypted */
$rawUUID = base64_decode(strtr($encUUID, '+/', '-_'));
$rawIV = base64_decode($iv);
$uuid = openssl_decrypt($rawUUID, self::CIPHER, $this->key, 0, $rawIV);
if (Uuid::isValid($uuid) && (int)$expire >= time()) {
$this->id = substr(preg_replace(self::URL64, '', $id), 0, 100);
return $uuid;
}
/* we have something encrypted, but it is expired or invalid, so delete it */
unlink(self::BASE . $encUUID);
}
}
return null;
}
/**
* Check if the remote-host has made too many login requests recently, and block if needed
* @return bool returns true if we should rate-limit this request, false otherwise
*/
private function rateLimit(): bool {
/* our identifier for this remote-host, replace all special characters with dashes */
/* session_id() only allows ",", "-", and alphanumeric characters */
$limiterId = preg_replace('/[^a-zA-Z0-9]/', '-', $this->getRemoteHost());
//error_log("limiterId: {$limiterId}");
session_id($limiterId);
session_start();
/* new remote-ip, start logging */
if ( ! isset($_SESSION['count'], $_SESSION['time'])) {
$this->resetRateLimit(false);
//error_log('limiter new, allow');
return false;
}
$sessionCount = (int)$_SESSION['count'];
$sessionTime = (int)$_SESSION['time'];
$rateLimit = (int)getenv('PREAUTH_RATE_LIMIT') ?: 4;
$rateTimeout = (int)getenv('PREAUTH_RATE_TIMEOUT') ?: 360;
$rateBlocked = (int)getenv('PREAUTH_RATE_BLOCKED') ?: 1440;
$rateMaximum = max($rateTimeout, $rateBlocked);
if ($sessionCount >= $rateLimit && time() - $rateBlocked <= $sessionTime) {
/* if over limit, and block current, block them */
//error_log("limiter over limit, block ($sessionCount)");
return true;
} else if ($sessionCount < $rateLimit && time() - $rateTimeout <= $sessionTime) {
/* if under limit, and timeout current, allow them */
//error_log("limiter under limit, allow ($sessionCount)");
return false;
}
/* either over limit and block has expired or */
/* under limit and timeout has expired, so reset them */
//error_log("limiter expired, reset");
$this->resetRateLimit(false);
return false;
}
/**
* @return string returns a newly generated random uuid
*/
private function newUUID(): string {
$data = random_bytes(16);
$data[6] = chr(ord($data[6]) & 0x0f | 0x40);
$data[8] = chr(ord($data[8]) & 0x3f | 0x80);
return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
}
/**
* Upon valid token and non-empty id, creates a uuid, stores session file and sets the cookie
* @return bool returns true if token and id are provided, and token is valid, false otherwise
*/
private function login(): bool {
/* fields must both be filled out */
if (isset($this->get[self::TOKEN_FIELD], $this->get[self::ID_FIELD]) &&
$this->get[self::TOKEN_FIELD] && $this->get[self::ID_FIELD]
) {
/* filter user input */
$id = substr(preg_replace(self::URL64, '', $this->get[self::ID_FIELD]), 0, 100);
$otp = TOTP::createFromSecret($this->token);
$date = date('Y-m-d H:i:s');
$remoteHost = $this->getRemoteHost();
/* if given token is valid, login, store session file and set the cookie */
if ($otp->now() === $this->get[self::TOKEN_FIELD]) {
$this->id = $id;
$uuid = $this->newUUID();
$rawIV = random_bytes(openssl_cipher_iv_length(self::CIPHER));
$rawUUID = openssl_encrypt($uuid, self::CIPHER, $this->key, 0, $rawIV);
$encUUID = strtr(base64_encode($rawUUID), '-_', '+/');
file_put_contents(
self::BASE . $encUUID,
base64_encode($rawIV) .
"\$$id\$$this->expire\$$date\$$remoteHost\$\n"
);
setcookie(
self::NAME,
$encUUID,
$this->expire,
'/', /* all paths */
$this->domain, /* all subdomains */
true, /* https only */
true /* no js access */
);
error_log("[$date] successful login by id: $id");
/* successful login, reset the rate-limit and close */
$this->resetRateLimit();
return true;
}
/* login attempted and failed, update monitoring for rate limiting */
$sessionCount = (int)$_SESSION['count'];
$rateLimit = (int)getenv('PREAUTH_RATE_LIMIT') ?: 4;
$this->logFailedAttempt();
if (($sessionCount + 1) >= $rateLimit) {
/* +1 to count this failure */
error_log("[$date] rate-limiting trigger for: $remoteHost");
/* just reached the rate limit, block them */
include __DIR__ . '/../400.php';
exit(0);
}
}
return false;
}
/**
* Determine real remote-host, if local address, find next level up
* @return string returns the real remote host (IP address)
*/
private function getRemoteHost(): string {
$remoteHost = $_SERVER['REMOTE_HOST'];
if (IpUtils::isPrivateIp($remoteHost)) {
$remoteList = array_map('trim', explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'] ?? ''));
$remoteIndex = array_search($remoteHost, $remoteList);
if ($remoteIndex > 0) {
$remoteHost = $remoteList[$remoteIndex - 1];
}
}
return $remoteHost;
}
/**
* [Re]Initialize the rate-limiting and close monitoring session (unless you pass false)
* @param bool $close Defaults to true, set to false to keep monitoring session open
*/
private function resetRateLimit(bool $close = true): void {
$_SESSION['time'] = time();
$_SESSION['count'] = 0;
if ($close) {
session_write_close();
}
}
/**
* Note that login failed so we can determine if we should rate-limit future requests
*/
private function logFailedAttempt(): void {
$_SESSION['time'] = time();
$_SESSION['count']++;
session_write_close();
}
}
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<?php
declare(strict_types=1);
namespace App;
use DateTimeImmutable;
use Psr\Clock\ClockInterface;
use Symfony\Component\DependencyInjection\Attribute\AsAlias;
#[AsAlias(ClockInterface::class)]
final readonly class Clock implements ClockInterface {
public function now(): DateTimeImmutable {
return new DateTimeImmutable();
}
}
@@ -0,0 +1,42 @@
<?php
declare(strict_types=1);
namespace App\Command;
use App\PersistCache;
use App\Service\BackupCodeManager;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
/** simple console command to generate backup codes
* usage: php bin/console app:generate-backup-codes [count] */
final class GenerateBackupCodesCommand extends Command {
public function __construct(
private readonly BackupCodeManager $manager,
private readonly PersistCache $persistCache,
) {
parent::__construct();
}
protected function configure(): void {
$this->setName('app:generate-backup-codes');
$this->setDescription('Generate singleuse backup codes')
->addArgument('count', InputArgument::OPTIONAL, 'Number of codes to generate', 10);
}
/** @throws InvalidArgumentException */
protected function execute(InputInterface $input, OutputInterface $output): int {
/* since Kernel::terminate() does not get called, we must boot and persist explicitly */
$this->persistCache->boot();
$count = (int) $input->getArgument('count');
$codes = $this->manager->generate($count);
foreach ($codes as $code) {
$output->writeln($code);
}
$this->persistCache->persist();
return Command::SUCCESS;
}
}
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<?php
declare(strict_types=1);
namespace App;
use Psr\Cache\InvalidArgumentException;
use Psr\Clock\ClockInterface;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
final readonly class ConfigBag {
private ClockInterface $clock;
private int $cookieTtl;
private string $totpUri;
private ?int $ipTtl;
private bool $teapot;
private string $errorMessage;
private string $teapotTitle;
private string $tooManyTitle;
/** @throws InvalidArgumentException */
public function __construct(
Utilities $utilities,
ClockInterface $clock,
#[Autowire('%app.cookie_ttl%')] int $cookieTtl,
#[Autowire('%app.totp_uri%')] string $totpUri,
#[Autowire('%app.ip_ttl%')] ?int $ipTtl,
#[Autowire('%app.teapot%')] bool $teapot,
#[Autowire('%app.error_message%')] string $errorMessage,
#[Autowire('%app.teapot_title%')] string $teapotTitle,
#[Autowire('%app.too_many_title%')] string $tooManyTitle,
) {
$this->clock = $clock;
$this->cookieTtl = $cookieTtl;
$this->totpUri = $totpUri ?: $utilities->loadTotp();
$this->ipTtl = $ipTtl ?: null;
$this->teapot = $teapot;
$this->errorMessage = $errorMessage;
$this->teapotTitle = $teapotTitle;
$this->tooManyTitle = $tooManyTitle;
}
public function clock(): ClockInterface {
return $this->clock;
}
public function cookieTtl(): int {
return $this->cookieTtl;
}
public function totpUri(): string {
return $this->totpUri;
}
public function ipTtl(): ?int {
return $this->ipTtl;
}
public function teapot(): bool {
return $this->teapot;
}
public function errorMessage(): string {
return $this->errorMessage;
}
public function teapotTitle(): string {
return $this->teapotTitle;
}
public function tooManyTitle(): string {
return $this->tooManyTitle;
}
}
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<?php
declare(strict_types=1);
namespace App\Data;
use App\Enum\Scope;
use Symfony\Component\HttpFoundation\InputBag;
/** when scope is IP but ip-access is disabled, scope is to be considered cookie */
final class Payload {
public string $id; /* session name, identifying who is logging in */
public string $token; /* TOTP, typically six digits */
public string $nonce; /* random unique string, to block duplicate submissions */
public bool $json; /* should we return json (for the login page) */
public Scope $scope; /* type of access being requested */
public static function decode(string $base64url): ?Payload {
/* convert the base64url into json string */
$json = base64_decode(str_pad(strtr($base64url, '-_', '+/'),
strlen($base64url) % 4, '='
), true);
if ($json) {
/* convert the json string into real data */
$data = json_decode($json);
if (is_object($data)) {
return Payload::create($data);
}
}
return null;
}
public static function load(InputBag $input): ?Payload {
/* convert form data into real data */
if ($input->has('username') && $input->has('nonce') && $input->has('totp')) {
return Payload::create((object)[
'id' => $input->get('username'),
'nonce' => $input->get('nonce'),
'token' => $input->get('totp'),
'json' => false,
]);
}
return null;
}
public static function create(object $data): ?Payload {
/* if missing required fields id, nonce, or token */
if (strlen(trim($data->id ?? '')) < 1 ||
strlen(trim($data->nonce ?? '')) < 1 ||
strlen(trim($data->token ?? '')) < 1
) {
/* returns null as the input is invalid */
return null;
}
/* all input is limited */
$payload = new Payload();
$payload->id = mb_substr(trim($data->id), 0, 128);
$payload->nonce = mb_substr(trim($data->nonce), 0, 128);
$payload->json = ($data->json ?? true);
$payload->scope = Scope::tryFrom($data->scope ?? '') ?? Scope::Cookie;
$payload->token = mb_substr(trim($data->token), 0, 128);
return Payload::constrict($payload);
}
public function toString(): string {
return json_encode($this);
}
private static function constrict(Payload $payload): Payload {
/* When scope is None, json will be considered false. */
if ($payload->scope === Scope::None) {
$payload->json = false;
}
return $payload;
}
}
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<?php
declare(strict_types=1);
namespace App\Enum;
/** scope defines the context of how a session is persisted */
enum Scope: string {
case Cookie = 'cookie';
case Ip = 'ip';
case None = 'none';
}
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<?php
declare(strict_types=1);
namespace Preauth;
class Env {
/**
* @return string returns title of this system
*/
public function getTitle(): string {
return getenv('PREAUTH_TITLE')
?: 'Pre-Authentication System';
}
/**
* @return string returns background-color of this system
*/
public function getColor(): string {
// defaults to teal
return getenv('PREAUTH_BACKGROUND') ?: '#029386';
}
/**
* @return string returns text-color of this system
*/
public function getTextColor(): string {
// defaults to white
return getenv('PREAUTH_FOREGROUND') ?: '#ffffff';
}
/**
* @return string returns the name of the ID field
*/
public function getIdName(): string {
return getenv('PREAUTH_ID_NAME') ?: 'Session ID';
}
/**
* @return string returns the name of the Token field
*/
public function getTokenName(): string {
return getenv('PREAUTH_TOKEN_NAME')
?: 'Authentication Token';
}
/**
* @return string returns the name of the Submit button
*/
public function getSubmitName(): string {
return getenv('PREAUTH_SUBMIT_NAME') ?: 'Submit';
}
/**
* @return string returns the denied http status code
*/
public function getDeniedCode(): string {
return getenv('PREAUTH_DENIED_CODE') ?: '418';
}
/**
* @return string returns the denied response title
*/
public function getDeniedTitle(): string {
return getenv('PREAUTH_DENIED_TITLE')
?: "I'm a teapot";
}
/**
* @return string returns the denied response message
*/
public function getDeniedMessage(): string {
return getenv('PREAUTH_DENIED_MESSAGE')
?: 'I refuse to brew coffee.';
}
}
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<?php
declare(strict_types=1);
namespace App;
use Psr\Cache\InvalidArgumentException;
use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Kernel as BaseKernel;
final class Kernel extends BaseKernel {
use MicroKernelTrait;
private PersistCache $persistCache;
/** @throws InvalidArgumentException */
public function boot(): void {
parent::boot();
$this->persistCache = $this->container->get(PersistCache::class);
$this->persistCache->boot();
}
/** @throws InvalidArgumentException */
public function terminate(Request $request, Response $response): void {
$this->persistCache->persist();
parent::terminate($request, $response);
}
}
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<?php
declare(strict_types=1);
namespace App\Listener;
use App\Service\DomainManager;
use App\Trait\CookieNameTrait;
use App\Trait\HasLoggerTrait;
use App\Trait\StringTrait;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\RequestEvent;
final readonly class AcceptListener {
use CookieNameTrait;
use HasLoggerTrait;
use StringTrait;
public function __construct(
private CacheItemPoolInterface $sessionCache,
private DomainManager $domainManager,
) {}
/** @throws InvalidArgumentException */
#[AsEventListener(priority: 99)]
public function onKernelRequest(RequestEvent $event): void {
/* check if they sent the correct preauth cookie */
$cookieName = $this->domainManager->authBase() ?$this->authCookieName() : $this->cookieName();
if ($event->getRequest()->cookies->has($cookieName)) {
$cookie = $event->getRequest()->cookies->get($cookieName);
$cookieKey = $this->makeCacheKey("cookie_$cookie");
if ($cookie && $this->sessionCache->hasItem($cookieKey)) {
/* cookie sent corresponds to valid existing session */
$id = $this->sessionCache->getItem($cookieKey)->get();
$this->logger->debug("has valid cookie-session: $id");
$event->setResponse(new Response("hi $id", headers: [
'Content-Type' => 'text/plain',
'Remote-User' => $id,
]));
}
}
}
}
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<?php
declare(strict_types=1);
namespace App\Listener;
use App\ConfigBag;
use App\Trait\HasLoggerTrait;
use App\Trait\StringTrait;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\RequestEvent;
final readonly class AllowListener {
use HasLoggerTrait;
use StringTrait;
public function __construct(
private CacheItemPoolInterface $sessionCache,
private ConfigBag $config,
) {}
/** @throws InvalidArgumentException */
#[AsEventListener(priority: 88)]
public function onKernelRequest(RequestEvent $event): void {
if ($this->config->ipTtl() > 0) {
$ipKey = $this->makeCacheKey("ip_{$event->getRequest()->getClientIp()}");
if ($this->sessionCache->hasItem($ipKey)) {
/* ip address corresponds to valid existing session */
$id = $this->sessionCache->getItem($ipKey)->get();
$this->logger->debug("has valid ip-session: $id");
$event->setResponse(new Response("hi $id", headers: [
'Content-Type' => 'text/plain',
'Remote-User' => $id,
]));
}
}
}
}
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<?php
declare(strict_types=1);
namespace App\Listener;
use App\ConfigBag;
use App\Service\DomainManager;
use App\Trait\CookieNameTrait;
use App\Trait\HasLoggerTrait;
use App\Trait\MakeNonceTrait;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Twig\Environment;
use Twig\Error\LoaderError;
use Twig\Error\RuntimeError;
use Twig\Error\SyntaxError;
final readonly class InterceptListener {
use CookieNameTrait;
use HasLoggerTrait;
use MakeNonceTrait;
public function __construct(
private ConfigBag $config,
private DomainManager $domainManager,
private Environment $twig,
) {}
/** @throws InvalidArgumentException|RuntimeError|SyntaxError|LoaderError */
#[AsEventListener(priority: 55)]
public function onKernelRequest(RequestEvent $event): void {
/* by this point, we know that the request we have is:
* not already authorized, nor already rate-limited,
* nor submitting login credentials; so redirect or present the login page now */
if ($this->domainManager->getAuthSubdomain() !== $event->getRequest()->getHost() &&
$this->domainManager->matchesAuth($event->getRequest()->getHost())
) {
/* host matches base-domain of auth, but not on auth subdomain, redirect */
$query = http_build_query(['return' => $event->getRequest()->getUri()]);
$event->setResponse(new Response('', Response::HTTP_SEE_OTHER,
['Location' => "https://{$this->domainManager->getAuthSubdomain()}/?$query"]
));
} else {
$this->logger->debug("presenting login page: {$event->getRequest()->getClientIp()}");
$content = $this->twig->render('login.html.twig', [
'nonce' => $this->makeNonce(),
'post' => $this->domainManager->getAuthSubdomain() === $event->getRequest()->getHost(),
]);
$hasCookie = (bool) $event->getRequest()->cookies->get(
$this->domainManager->authBase() ? $this->authCookieName() : $this->cookieName()
);
$event->setResponse($this->pruneInvalidCookie(new Response($content,
Response::HTTP_UNAUTHORIZED, ['Content-Type' => 'text/html']
), $hasCookie, $event->getRequest()->getHost()));
}
}
private function pruneInvalidCookie(Response $response, bool $hasCookie, string $host): Response {
if ($hasCookie) {
/* input here must match LoginListener::setCookie() */
$response->headers->clearCookie(
$this->domainManager->authBase() ? $this->authCookieName() : $this->cookieName(),
'/',
/* if using central auth, only set the domain if the host matches */
$this->domainManager->matchesAuth($host) ? $this->domainManager->authBase() : null,
true,
true,
Cookie::SAMESITE_STRICT
);
}
return $response;
}
}
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<?php
declare(strict_types=1);
namespace App\Listener;
use App\ConfigBag;
use App\Data\Payload;
use App\Service\DomainManager;
use App\Service\LoginManager;
use App\Trait\CookieNameTrait;
use App\Trait\HasLoggerTrait;
use App\Trait\MakeNonceTrait;
use App\Trait\StringTrait;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Attribute\Target;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\RateLimiter\RateLimiterFactoryInterface;
use Twig\Environment;
use Twig\Error\LoaderError;
use Twig\Error\RuntimeError;
use Twig\Error\SyntaxError;
final readonly class LoginListener {
use CookieNameTrait;
use HasLoggerTrait;
use MakeNonceTrait;
use StringTrait;
private RateLimiterFactoryInterface $rateLimiter;
public function __construct(
private Environment $twig,
#[Target('login_limiter')] RateLimiterFactoryInterface $rateLimiter,
private DomainManager $domainManager,
private LoginManager $loginManager,
private ConfigBag $config,
) {
$this->rateLimiter = $rateLimiter;
}
/** @throws InvalidArgumentException|LoaderError|RuntimeError|SyntaxError */
#[AsEventListener(priority: 66)]
public function onKernelRequest(RequestEvent $event): void {
$payload = null;
$response = null;
if ($event->getRequest()->headers->has($this->headerName())) {
/* if request contains our "X-Preauth" header */
$data = $event->getRequest()->headers->get($this->headerName());
$payload = Payload::decode($data);
} else if ($event->getRequest()->isMethod(Request::METHOD_POST) &&
$this->domainManager->getAuthSubdomain() === $event->getRequest()->getHost()
) {
/* if request is a POST to the auth-subdomain */
$payload = Payload::load($event->getRequest()->getPayload());
} else {
/* no login attempt detected */
return;
}
if ($payload) {
/* user sent a valid payload, check it */
$response = $this->loginManager->checkToken($payload, $event->getRequest());
/* token or backup-code authentication was successful */
if ($response) {
$event->setResponse($response);
return;
}
}
/* login attempted but unsuccessful, log and block if needed */
$limitReached = $this->logFailure($event->getRequest());
$this->logger->debug("logging failure for: {$event->getRequest()->getClientIp()}");
$event->setResponse($this->makeFailedResponse($limitReached, $payload->json ?? true,
$event->getRequest()->getHost(), $this->makeCacheKey($payload ? $payload->id : '')
));
}
private function logFailure(Request $request): bool {
$limiter = $this->rateLimiter->create($request->getClientIp());
return ($limiter->consume(1)->getRemainingTokens() < 1);
}
/** @throws InvalidArgumentException|RuntimeError|SyntaxError|LoaderError */
private function makeFailedResponse(bool $limited, bool $json, string $host, string $username): Response {
if ($limited) {
$status = $this->config->teapot() ? Response::HTTP_I_AM_A_TEAPOT
: Response::HTTP_TOO_MANY_REQUESTS;
$message = $this->config->teapot() ? $this->config->teapotTitle()
: $this->config->tooManyTitle();
} else {
$status = Response::HTTP_UNAUTHORIZED;
$message = $this->config->errorMessage();
}
$answer = [
'message' => $message,
'nonce' => $this->makeNonce(),
'post' => $this->domainManager->getAuthSubdomain() === $host,
'username' => $username,
];
if ($json) {
$contentType = 'application/json';
$content = json_encode($answer);
} else {
$contentType = 'text/html';
$content = $this->twig->render('login.html.twig', $answer);
}
return new Response($content, $status, ["Content-Type" => $contentType]);
}
}
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<?php
declare(strict_types=1);
namespace App\Listener;
use App\ConfigBag;
use App\Trait\HasLoggerTrait;
use App\Trait\StringTrait;
use Symfony\Component\DependencyInjection\Attribute\Target;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\RateLimiter\RateLimiterFactoryInterface;
use Twig\Environment;
use Twig\Error\LoaderError;
use Twig\Error\RuntimeError;
use Twig\Error\SyntaxError;
final readonly class RejectListener {
use HasLoggerTrait;
use StringTrait;
private RateLimiterFactoryInterface $rateLimiter;
public function __construct(
private ConfigBag $config,
private Environment $twig,
#[Target('login_limiter')] RateLimiterFactoryInterface $rateLimiter,
) {
$this->rateLimiter = $rateLimiter;
}
/** @throws SyntaxError|RuntimeError|LoaderError */
#[AsEventListener(priority: 77)]
public function onKernelRequest(RequestEvent $event): void {
/* check if they have made too many failed login attempts */
$limiter = $this->rateLimiter->create($event->getRequest()->getClientIp());
if ($limiter->consume(0)->getRemainingTokens() < 1) {
$this->logger->debug("already blocked: {$event->getRequest()->getClientIp()}");
$html = $this->twig->render('error.html.twig');
$event->setResponse(new Response($html, ($this->config->teapot()
? Response::HTTP_I_AM_A_TEAPOT : Response::HTTP_TOO_MANY_REQUESTS),
['Content-Type' => 'text/html']
));
}
}
}
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<?php
declare(strict_types=1);
namespace App;
use OutOfBoundsException;
use Psr\Cache\CacheItemInterface;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
/* we must *NOT* store the key-list item or values within this object
* because it can change from outside this object instance */
final readonly class MonitorCacheKeys implements CacheItemPoolInterface {
private const string KEY_LIST = '__key_list';
private const string CHANGE_LIST = '__chg_list';
public const int UPDATED = 1;
public const int REMOVED = 2;
private CacheItemPoolInterface $cache;
/** @throws InvalidArgumentException */
public function __construct(CacheItemPoolInterface $cache) {
$this->cache = $cache;
$items = $cache->getItems([self::KEY_LIST, self::CHANGE_LIST]);
foreach ($items as $item) {
if ( ! $item->isHit()) {
$this->initialize();
break;
}
}
}
/** @throws InvalidArgumentException */
private function initialize(): void {
$keyList = $this->cache->getItem(self::KEY_LIST);
$changeList = $this->cache->getItem(self::CHANGE_LIST);
$keyList->set([]);
$changeList->set([]);
$this->cache->saveDeferred($keyList);
$this->cache->saveDeferred($changeList);
$this->cache->commit();
}
/** @throws InvalidArgumentException */
public function getKeys(): array {
$keyList = $this->cache->getItem(self::KEY_LIST);
return array_keys($keyList->get() ?? []);
}
/** @throws InvalidArgumentException */
public function getChanges(): array {
$changeList = $this->cache->getItem(self::CHANGE_LIST);
return $changeList->get() ?? [];
}
/** @throws InvalidArgumentException */
public function markClean(): void {
$changeList = $this->cache->getItem(self::CHANGE_LIST);
$changeList->set([]);
$this->cache->save($changeList);
}
public function getItem(string $key): CacheItemInterface {
return $this->cache->getItem($key);
}
/** @return CacheItemInterface[]
* @throws InvalidArgumentException */
public function getItems(array $keys = []): iterable {
return $this->cache->getItems($keys);
}
public function hasItem(string $key): bool {
return $this->cache->hasItem($key);
}
/** @throws InvalidArgumentException */
public function clear(): bool {
/* only bother clearing the pool if it is not empty */
if ( ! empty($this->getKeys())) {
$response = $this->cache->clear();
$this->initialize();
return $response;
}
return true;
}
public function deleteItem(string $key): bool {
$this->isValid($key);
$keyList = $this->cache->getItem(self::KEY_LIST);
$keyValues = $keyList->get();
if (isset($keyValues[$key])) {
unset($keyValues[$key]);
$keyList->set($keyValues);
$this->cache->saveDeferred($keyList);
$this->logChange($key, MonitorCacheKeys::REMOVED);
$this->cache->commit();
}
return $this->cache->deleteItem($key);
}
public function deleteItems(array $keys): bool {
$this->allValid($keys);
$keyList = $this->cache->getItem(self::KEY_LIST);
$keyValues = $keyList->get();
foreach ($keys as $key) {
if (isset($keyValues[$key])) {
unset($keyValues[$key]);
$this->logChange($key, MonitorCacheKeys::REMOVED);
}
}
$keyList->set($keyValues);
$this->cache->saveDeferred($keyList);
$this->cache->commit();
return $this->cache->deleteItems($keys);
}
/** @throws InvalidArgumentException */
public function save(CacheItemInterface $item): bool {
$this->update($item);
return $this->cache->save($item);
}
/** @throws InvalidArgumentException */
public function saveDeferred(CacheItemInterface $item): bool {
$this->update($item);
return $this->cache->saveDeferred($item);
}
public function commit(): bool {
return $this->cache->commit();
}
/** @throws InvalidArgumentException|OutOfBoundsException */
private function update(CacheItemInterface $item): void {
$this->isValid($item->getKey());
$keyList = $this->cache->getItem(self::KEY_LIST);
$keyValues = $keyList->get();
$keyValues[$item->getKey()] = true;
$keyList->set($keyValues);
$this->logChange($item->getKey());
$this->cache->saveDeferred($keyList);
$this->cache->commit();
}
/** @throws OutOfBoundsException */
private function isValid(string $key): void {
if ($key === self::KEY_LIST || $key === self::CHANGE_LIST) {
throw new OutOfBoundsException(
'Can not modify the private key or change lists'
);
}
}
/** @throws OutOfBoundsException */
private function allValid(array $keys): void {
if (in_array(self::KEY_LIST, $keys, true) ||
in_array(self::CHANGE_LIST, $keys, true)
) {
throw new OutOfBoundsException(
'Can not modify the private key or change lists'
);
}
}
/** @throws InvalidArgumentException */
private function logChange(string $key, int $code = MonitorCacheKeys::UPDATED): void {
$changeList = $this->cache->getItem(self::CHANGE_LIST);
$changeValues = $changeList->get();
$changeValues[$key] = $code;
$changeList->set($changeValues);
$this->cache->saveDeferred($changeList);
}
}
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<?php
declare(strict_types=1);
namespace App;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
/* need autoconfigure so we get it from the service container in Kernel->boot() */
#[Autoconfigure(public: true)]
final readonly class PersistCache {
private MonitorCacheKeys $sessionCache;
private MonitorCacheKeys $sessionStorage;
/** @throws InvalidArgumentException */
public function __construct(
CacheItemPoolInterface $sessionCache,
CacheItemPoolInterface $sessionStorage,
) {
$this->sessionCache = new MonitorCacheKeys($sessionCache);
$this->sessionStorage = new MonitorCacheKeys($sessionStorage);
}
/** @throws InvalidArgumentException */
public function boot(): void {
/* the caches are considered warm as soon as they are not empty */
if (empty($this->sessionCache->getKeys())) {
$items = $this->sessionStorage->getItems($this->sessionStorage->getKeys());
foreach ($items as $item) {
$this->sessionCache->saveDeferred($item);
}
$this->sessionCache->markClean();
$this->sessionCache->commit();
}
}
/** @throws InvalidArgumentException */
public function persist(): void {
/* we only need to persist the changes made to the cache (if any) */
$changes = $this->sessionCache->getChanges();
if ($changes) {
$this->sessionCache->markClean();
$items = $this->sessionCache->getItems(array_keys($changes));
foreach ($items as $item) {
if (($changes[$item->getKey()] ?? null) === MonitorCacheKeys::REMOVED) {
$this->sessionStorage->deleteItem($item->getKey());
} else {
$this->sessionStorage->saveDeferred($item);
}
}
$this->sessionStorage->commit();
}
}
}
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<?php
declare(strict_types=1);
namespace App\Service;
use App\MonitorCacheKeys;
use App\Trait\HasLoggerTrait;
use App\Trait\StringTrait;
use DateTimeImmutable;
use Exception;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use App\Trait\GetTotpTrait;
/** backup-codes are caseinsensitive alphanumeric strings
* they are single-use and marked as used after successful authentication
*/
final readonly class BackupCodeManager {
use GetTotpTrait;
use HasLoggerTrait;
use StringTrait;
private const int DEFAULT_COUNT = 10;
/* php base_convert() will break if given too long of an input */
const int MAX_LENGTH = 64;
private CacheItemPoolInterface $sessionCache;
/** @throws InvalidArgumentException */
public function __construct(CacheItemPoolInterface $sessionCache) {
$this->sessionCache = new MonitorCacheKeys($sessionCache);
}
/** generate a set of backup-codes and return them
* @param int $count Number of codes to generate
* @return string[] Generated backup codes
* @throws InvalidArgumentException|Exception */
public function generate(int $count = self::DEFAULT_COUNT): array {
$length = min($this->getTotp()->getDigits() + 2, self::MAX_LENGTH);
$codes = [];
for ($i = 0; $i < $count; $i++) {
/* output is alphanumeric string of given length */
$codes[] = strtolower(str_pad(substr(base_convert(bin2hex(
random_bytes($length)
), 16, 36), 0, $length), $length, '0', STR_PAD_LEFT));
}
$this->saveCodes($codes);
$this->logger->info("generated {$count} backup codes");
return $codes;
}
/** @throws InvalidArgumentException */
public function expire(): void {
$itemsToRemove = [];
foreach ($this->sessionCache->getKeys() as $key) {
if (str_starts_with($key, 'backup_')) {
$itemsToRemove[] = $key;
}
}
if (count($itemsToRemove) > 0) {
$this->sessionCache->deleteItems($itemsToRemove);
}
}
/** check if backup-code is valid and mark it as used
* @param string $code Code supplied by the client
* @return bool true if the code is valid and unused
* @throws InvalidArgumentException */
public function verifyAndConsume(string $code): bool {
/* remove unallowed characters, since backup codes are case-insensitive alphanumeric */
$backupKey = 'backup_' . preg_replace('/[^a-z0-9]+/', '', strtolower($code));
$backupItem = $this->sessionCache->getItem($this->makeCacheKey($backupKey));
$this->logger->debug("checking backup code '{$backupKey}': " . ($backupItem->isHit() ? 'HIT & ' : 'miss & ') . ($backupItem->get() ? 'VALID' : 'invalid'));
if ($backupItem->isHit() && $backupItem->get()) {
$this->logger->debug("valid backup code");
/* mark backup code as spent */
$backupItem->set(false); /* used */
/* per PSR6, if no expiration is set, implementation may set a default,
* we want this to keep forever, so a few hundred years should do it */
$backupItem->expiresAt(DateTimeImmutable::createFromFormat(
'Y-m-d', '2999-12-31'
));
$this->sessionCache->save($backupItem);
return true;
}
return false;
}
/** @throws InvalidArgumentException */
private function saveCodes(array $codes): void {
foreach ($codes as $code) {
$backupItem = $this->sessionCache->getItem($this->makeCacheKey(strtolower("backup_$code")));
/* mark backup code as ready */
$backupItem->set(true);
/* per PSR6, if no expiration is set, implementation may set a default,
* we want this to keep forever, so a few hundred years should do it */
$backupItem->expiresAt(DateTimeImmutable::createFromFormat(
'Y-m-d', '2999-12-31'
));
$this->sessionCache->saveDeferred($backupItem);
}
$this->sessionCache->commit();
}
}
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<?php
declare(strict_types=1);
namespace App\Service;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
final readonly class DomainManager {
/* top-level-domains which are known to have multiple parts */
private const array TLD = [
'ai' => ['com','net','off','org'],
'am' => ['radio'],
'com' => ['br','cn','co','de','eu','gr','it','jpn','mex','ru','sa','uk','us','za'],
'de' => ['com'],
'fm' => ['radio'],
'gg' => ['co','net','org'],
'in' => ['co','firm','gen','ind','net','org'],
'je' => ['co','net','org'],
'mx' => ['com','net','org'],
'net' => ['gb','hu','in','jp','se','uk'],
'nz' => ['co','net','org'],
'org' => ['ae','us'],
'ph' => ['com','net','org'],
'se' => ['com'],
'uk' => ['co','me','org'],
];
private bool $subdomainRedirect;
private string $authSubdomain;
public function __construct(
#[Autowire('%app.subdomain_redirect%')] bool $subdomainRedirect,
#[Autowire('%app.auth_subdomain%')] string $authSubdomain,
) {
$this->subdomainRedirect = $subdomainRedirect;
$this->authSubdomain = $authSubdomain;
}
/** IE: "auth.example.com" or null if not using a separate subdomain
* @return ?string Returns auth subdomain if configured, otherwise null */
public function getAuthSubdomain(): ?string {
if ($this->authBase()) {
return $this->authSubdomain;
}
return null;
}
/** check if given url is an acceptable url for redirection
* @param string $url Where we are thinking of sending the user
* @return bool Returns true if it is acceptable to send the user there */
public function validReturn(string $url): bool {
/* ensure url is valid and, when using an auth subdomain,
* that the url host matches the base domain */
if (!filter_var($url, FILTER_VALIDATE_URL)) {
return false;
}
if ($this->authBase()) {
$host = parse_url($url, PHP_URL_HOST);
if ($host === null) {
return false;
}
/* do not send the user to another domain */
return $this->matchesAuth($host);
}
return true;
}
/** check if host-base matches auth-base
* @param string $host
* @return bool returns true if and only if host matches base domain of auth */
public function matchesAuth(string $host): bool {
$hostBase = $this->baseDomain($host);
$authBase = $this->baseDomain($this->authSubdomain);
return $this->subdomainRedirect && $this->authSubdomain &&
$authBase && $authBase === $hostBase;
}
/** IE: "example.com" if central auth is something like "auth.example.com"
* @return string|null returns base domain if we are doing central auth */
public function authBase(): ?string {
if ($this->subdomainRedirect && $this->authSubdomain && $this->baseDomain($this->authSubdomain)) {
return $this->baseDomain($this->authSubdomain);
}
return null;
}
/** this lets us determine the base domain of the given ip, localhost, or domain
* "service.example.co.uk" into "example.co.uk" and "service.example.com" into "example.com"
* things like "localhost" and "8.8.8.8" will return null
* @param string $host ip, localhost, or domain with zero or more subdomains
* @return ?string returns null if host is ip or localhost otherwise domain with all subdomains removed */
private function baseDomain(string $host): ?string {
/* if host is an ip address (or localhost), leave it as is */
if (filter_var($host, FILTER_VALIDATE_IP) || $host === 'localhost') {
return null;
}
$parts = explode('.', $host);
$keep = $this->baseLength($parts);
$parts = array_slice($parts, -$keep);
return implode('.', $parts);
}
/** IE: ["www", "example", "com"] or ["www", "example", "co", "uk"]
* @param string[] $parts pieces of a domain split by "." dot
* @return int typically 2 but sometimes 3 */
private function baseLength(array $parts): int {
$length = count($parts);
$baseLength = min(2, $length);
/* check if host should retain 3 parts, due to TLD */
if (count($parts) > 2 && isset(self::TLD[$parts[$length-1]]) &&
in_array($parts[$length-2], self::TLD[$parts[$length-1]], true)
) {
$baseLength = min(3, $length);
}
return $baseLength;
}
}
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<?php
declare(strict_types=1);
namespace App\Service;
use App\Data\Payload;
use App\Enum\Scope;
use App\MonitorCacheKeys;
use App\Trait\CookieNameTrait;
use App\Trait\GetTotpTrait;
use App\Trait\MakeNonceTrait;
use App\Trait\StringTrait;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Component\Uid\Ulid;
final readonly class LoginManager {
use CookieNameTrait;
use GetTotpTrait;
use MakeNonceTrait;
use StringTrait;
private CacheItemPoolInterface $sessionCache;
/** @throws InvalidArgumentException */
public function __construct(
CacheItemPoolInterface $sessionCache,
private BackupCodeManager $backupCodeManager,
private DomainManager $domainManager,
) {
$this->sessionCache = new MonitorCacheKeys($sessionCache);
}
/** @throws InvalidArgumentException */
public function checkToken(Payload $payload, Request $request): ?Response {
/* when scope is IP but ip-access is disabled, scope is to be considered cookie */
if ($payload->scope === Scope::Ip && ! $this->config->ipTtl()) {
/* requested to grant ip access, but that is not enabled */
$payload->scope = Scope::Cookie;
}
if ($this->getTotp()->verify($payload->token, null, 10) ||
$this->backupCodeManager->verifyAndConsume($payload->token)
) {
/* token is correct (TOTP or Backup) */
/* if server nonce is found and is valid */
$nonceItem = $this->nonceCache->getItem($this->makeCacheKey($payload->nonce));
if ($nonceItem->isHit() && $nonceItem->get()) {
/* mark nonce as spent */
$nonceItem->set(false); /* invalid */
$nonceItem->expiresAfter(LoginManager::NONCE_TTL); /* keep briefly */
$this->nonceCache->save($nonceItem);
/* token authentication successful, grant access and set response */
$cleanId = $this->makeCacheKey($payload->id);
/* if they just want this one page, return ok, to grant them access */
$response = new Response("hi $cleanId", headers: [
'Content-Type' => 'text/plain',
'Remote-User' => $cleanId,
]);
if ($payload->scope !== Scope::None) {
/* grant access based on the requested scope */
if ($payload->scope === Scope::Cookie) {
$response->headers->setCookie($this->setCookie($cleanId, $request->getHost()));
} else if ($payload->scope === Scope::Ip) {
$this->setIp($cleanId, $request->getClientIp());
}
if ($payload->json) {
$contentType = 'application/json';
$content = json_encode([
'message' => 'Login successful',
'nonce' => null,
]);
} else {
$contentType = 'text/html';
$content = "hi $cleanId, please reload";
}
$location = $request->query->has('return') &&
$this->domainManager->validReturn($request->query->get('return')) ?
"{$request->query->get('return')}" :
"{$request->getPathInfo()}{$request->getQueryString()}";
/* force redirect to use GET method (important when using central auth) */
$response->setContent($content)
->setStatusCode(Response::HTTP_SEE_OTHER)
->headers->set('Location', $location);
$response->headers->set('Content-Type', $contentType);
}
$this->logger->debug("successful login for: $cleanId");
return $response;
}
}
return null;
}
/** @throws InvalidArgumentException */
private function setCookie(string $id, string $host): Cookie {
/* successful auth with token, store session and set the cookie */
$ulid = new Ulid();
$sessionCookie = $this->sessionCache->getItem(
$this->makeCacheKey("cookie_$ulid")
);
if ($sessionCookie->isHit()) {
/* it is supposed to be impossible to have collisions */
$this->logger->error("aborting: ULID collision");
throw new HttpException(Response::HTTP_INTERNAL_SERVER_ERROR, 'Internal Server Error');
}
$sessionCookie->set($id);
$sessionCookie->expiresAfter($this->config->cookieTtl());
$this->sessionCache->save($sessionCookie);
/* when using subdomain-auth we have to use a different cookie name, as the
* "__Host-Http-" prefix we normally use does not allow domain to be set */
/* changes here must be reflected in InterceptListener::pruneInvalidCookie() */
return Cookie::create(
name: $this->domainManager->authBase() ? $this->authCookieName() : $this->cookieName(),
value: $ulid->toString(),
expire: time() + $this->config->cookieTtl(),
path: '/',
/* if using central auth, only set the domain if the host matches */
domain: $this->domainManager->matchesAuth($host) ? $this->domainManager->authBase() : null,
secure: true,
httpOnly: true,
sameSite: Cookie::SAMESITE_STRICT,
);
}
/** @throws InvalidArgumentException */
private function setIp(string $id, string $ip): void {
/* successful auth with token, requested scope of ip (and ip access enabled) */
$ipKey = $this->makeCacheKey("ip_$ip");
$sessionIp = $this->sessionCache->getItem($ipKey);
$sessionIp->set($id);
$sessionIp->expiresAfter($this->config->ipTtl());
$this->sessionCache->save($sessionIp);
}
}
+22
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<?php
declare(strict_types=1);
namespace App\Trait;
trait CookieNameTrait {
private const string COOKIE_NAME = '__Host-Http-Preauth';
private const string AUTH_COOKIE_NAME = '__Http-Domain-Preauth';
private const string HEADER_NAME = 'X-Preauth';
final protected function cookieName(): string {
return static::COOKIE_NAME;
}
final protected function authCookieName(): string {
return static::AUTH_COOKIE_NAME;
}
final protected function headerName(): string {
return static::HEADER_NAME;
}
}
+29
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<?php
declare(strict_types=1);
namespace App\Trait;
use App\ConfigBag;
use OTPHP\Factory;
use OTPHP\TOTPInterface;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Contracts\Service\Attribute\Required;
trait GetTotpTrait {
protected readonly ConfigBag $config;
#[Required]
public function setConfig(ConfigBag $config): void {
$this->config = $config;
}
protected function getTotp(): TOTPInterface {
$otp = Factory::loadFromProvisioningUri(
$this->config->totpUri(), $this->config->clock()
);
if ($otp instanceof TOTPInterface) {
return $otp;
}
throw new HttpException(500, 'Internal Server Exception');
}
}
+16
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<?php
declare(strict_types=1);
namespace App\Trait;
use Psr\Log\LoggerInterface;
use Symfony\Contracts\Service\Attribute\Required;
trait HasLoggerTrait {
protected readonly LoggerInterface $logger;
#[Required]
public function setLogger(LoggerInterface $logger): void {
$this->logger = $logger;
}
}
+54
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<?php
declare(strict_types=1);
namespace App\Trait;
use Exception;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Contracts\Service\Attribute\Required;
trait MakeNonceTrait {
use HasLoggerTrait;
use StringTrait;
/* 15 bytes neatly fits in base64 */
private const int NONCE_LENGTH = 15;
private const int NONCE_TTL = 120;
protected readonly CacheItemPoolInterface $nonceCache;
#[Required]
public function setNonceCache(CacheItemPoolInterface $nonceCache): void {
$this->nonceCache = $nonceCache;
}
/** @throws InvalidArgumentException|Exception */
protected function makeNonce(int $retries = 3): string {
/* convert raw binary into base64url */
$nonce = rtrim(strtr(base64_encode(random_bytes(
static::NONCE_LENGTH
)), '+/', '-_'), '=');
$nonceItem = $this->nonceCache->getItem($this->makeCacheKey($nonce));
if ($nonceItem->isHit()) {
if ($retries < 1) {
$this->logger->error("aborting: multiple nonce collisions");
throw new HttpException(
Response::HTTP_INTERNAL_SERVER_ERROR,
'Internal Server Error'
);
}
/* managed to have a collision, try again */
return $this->makeNonce($retries - 1);
}
$nonceItem->set(true); /* valid */
$nonceItem->expiresAfter(static::NONCE_TTL);
$this->logger->debug("added nonce: $nonce");
$this->nonceCache->save($nonceItem);
return $nonce;
}
}
+13
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<?php
declare(strict_types=1);
namespace App\Trait;
trait StringTrait {
/* cache keys can safely use alphanumeric, "_", and ".", remove the rest */
private const string KEY_REGEX = '/[^A-Za-z0-9_.]+/';
public function makeCacheKey(string $name): string {
return mb_substr(preg_replace(static::KEY_REGEX, '_', $name), 0, 128);
}
}
+61
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<?php
declare(strict_types=1);
namespace App;
use BaconQrCode\Renderer\PlainTextRenderer;
use BaconQrCode\Writer;
use DateTimeImmutable;
use OTPHP\TOTP;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\InvalidArgumentException;
use Psr\Clock\ClockInterface;
final readonly class Utilities {
public function __construct(
private ClockInterface $clock,
private CacheItemPoolInterface $appPool,
) {}
/** @throws InvalidArgumentException */
public function loadTotp(): string {
/* user forgot to set their TOTP_URI in the environment */
if ($this->appPool->hasItem('totp')) {
$totp = $this->appPool->getItem('totp')->get();
} else {
$totp = $this->makeTotp();
}
$this->showTotp($totp);
return $totp;
}
/** @throws InvalidArgumentException */
private function makeTotp(): string {
/* we have not stored a totp into the app cache yet */
$totpObj = TOTP::generate($this->clock);
$totpObj->setLabel('Preauth-TOTP');
$totp = $totpObj->getProvisioningUri();
$totpItem = $this->appPool->getItem('totp');
$totpItem->set($totp);
/* per PSR6, if no expiration is set, implementation may set a default,
* we want this to keep forever, so a few hundred years should do it */
$totpItem->expiresAt(DateTimeImmutable::createFromFormat(
'Y-m-d', '2999-12-31'
));
$this->appPool->save($totpItem);
return $totp;
}
private function showTotp(string $totp): void {
$writer = new Writer(new PlainTextRenderer());
file_put_contents(
'php://stderr', <<<RAW
{$writer->writeString($totp)}
$totp
loading TOTP, because the env is not set, please copy above into TOTP_URI
RAW, FILE_APPEND
);
}
}
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{
"symfony/console": {
"version": "7.4",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "5.3",
"ref": "1781ff40d8a17d87cf53f8d4cf0c8346ed2bb461"
},
"files": [
"bin/console"
]
},
"symfony/flex": {
"version": "2.10",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "2.4",
"ref": "52e9754527a15e2b79d9a610f98185a1fe46622a"
},
"files": [
".env",
".env.dev"
]
},
"symfony/framework-bundle": {
"version": "7.4",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "7.4",
"ref": "09f6e081c763a206802674ce0cb34a022f0ffc6d"
},
"files": [
"config/packages/cache.yaml",
"config/packages/framework.yaml",
"config/preload.php",
"config/routes/framework.yaml",
"config/services.yaml",
"public/index.php",
"src/Controller/.gitignore",
"src/Kernel.php",
".editorconfig"
]
},
"symfony/routing": {
"version": "7.4",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "7.4",
"ref": "bc94c4fd86f393f3ab3947c18b830ea343e51ded"
},
"files": [
"config/packages/routing.yaml",
"config/routes.yaml"
]
},
"symfony/twig-bundle": {
"version": "7.4",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "6.4",
"ref": "cab5fd2a13a45c266d45a7d9337e28dee6272877"
},
"files": [
"config/packages/twig.yaml",
"templates/base.html.twig"
]
},
"symfony/uid": {
"version": "7.4",
"recipe": {
"repo": "github.com/symfony/recipes",
"branch": "main",
"version": "7.0",
"ref": "0df5844274d871b37fc3816c57a768ffc60a43a5"
}
}
}
-75
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<?php
use Preauth\Auth;
use Preauth\Env;
global $auth;
$env = new Env();
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title><?php echo $env->getTitle(); ?></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Begin Icons -->
<link rel="apple-touch-icon" sizes="180x180" href="https://<?php echo $auth->getBaseDomain(); ?>/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="192x192" href="https://<?php echo $auth->getBaseDomain(); ?>/android-chrome-192x192.png">
<link rel="icon" type="image/png" sizes="16x16" href="https://<?php echo $auth->getBaseDomain(); ?>/favicon-16x16.png">
<link rel="manifest" href="https://<?php echo $auth->getBaseDomain(); ?>/site.webmanifest">
<meta name="apple-mobile-web-app-title" content="<?php echo $env->getTitle(); ?>">
<meta name="application-name" content="<?php echo $env->getTitle(); ?>">
<meta name="msapplication-TileColor" content="<?php echo $env->getColor(); ?>">
<meta name="theme-color" content="<?php echo $env->getColor(); ?>">
<!-- End Icons -->
<style>
* {
margin: 0;
padding: 0.25em;
}
html {
background-color: <?php echo $env->getColor(); ?>;
color: <?php echo $env->getTextColor(); ?>;
display: table;
font-family: sans-serif;
font-size: 1.5em;
height: 100%;
padding: 0;
width: 100%;
}
body {
display: table-cell;
vertical-align: middle;
}
h1 {
font-size: 2.5em;
font-weight: normal;
text-align: center;
}
form {
display: flex;
flex-wrap: wrap;
justify-content: center;
}
form div {
width: 45%;
}
div.right {
text-align: right;
}
div.center {
text-align: center;
}
</style>
</head>
<body>
<h1><?php echo $env->getTitle(); ?></h1>
<form action="/" method="get">
<input type="hidden" name="<?php echo Auth::RETURN_FIELD; ?>" value="<?php echo $auth->getReturnTo(); ?>">
<div class="right"><label for="id"><?php echo $env->getIdName(); ?>:</label></div>
<div><input type="text" name="<?php echo Auth::ID_FIELD; ?>" id="id" autocomplete="on" required="required" autofocus="autofocus"></div>
<div class="right"><label for="token"><?php echo $env->getTokenName(); ?>:</label></div>
<div><input type="text" name="<?php echo Auth::TOKEN_FIELD; ?>" id="token" autocomplete="off" required="required"></div>
<div class="center"><button type="submit"><?php echo $env->getSubmitName(); ?></button></div>
</form>
</body>
</html>
+84
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<script>
const form = document.getElementById('preauth-form');
const message = document.getElementById('preauth-message');
const body = document.getElementById('preauth-body');
const style = document.getElementById('preauth-style');
form.addEventListener('submit', (event) => {
event.preventDefault();
{# make base64url string containing our payload json object #}
const data = btoa(JSON.stringify({
id: form.username.value?.trim() ?? '',
token: form.totp.value?.trim() ?? '',
nonce: form.nonce.value?.trim() ?? '',
json: true
})).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
{# send our request to the server #}
fetch(window.location.href, {
method: 'GET',
headers: { 'X-Preauth': data },
}).then((response) => {
{% if env.debug > 2 -%}
console.log(response);
{% endif -%}
if (response.headers.has('Location')) {
{# follow redirect (probably not needed) #}
{% if env.debug > 2 -%}
console.log('got redirect response');
{% endif -%}
window.location.href = response.headers.get('Location');
} else if (response.headers.get('Content-Type')?.toLowerCase().includes('application/json') ?? false) {
{# got json, update the page #}
{% if env.debug > 2 -%}
console.log('got json response');
{% endif -%}
response.json().then((content) => {
if (Object.hasOwn(content, 'message')) {
message.innerText = content.message;
}
if (Object.hasOwn(content, 'nonce')) {
form.nonce.value = content.nonce;
form.totp.value = '';
form.totp.focus();
}
}).catch((error) => {
console.log('failed to parse json from response');
console.log(error);
});
} else if (response.headers.get('Content-Type')?.toLowerCase().includes('text/html') ?? false) {
{# got html, replace the page #}
{% if env.debug > 2 -%}
console.log('got html response');
{% endif -%}
response.text().then((html) => {
document.open();
document.write(html);
document.close();
}).catch((error) => {
console.log('failed to get html from response');
console.log(error);
});
} else {
{# non-json, non-html, non-redirect response #}
{# update the page, change style to plain text #}
{% if env.debug > 2 -%}
console.log('got misc response');
{% endif -%}
response.text().then((text) => {
body.innerText = text;
style.disabled = true;
body.style.whiteSpace = 'pre-wrap';
body.style.wordWrap = 'break-word';
}).catch((error) => {
console.log('failed to get text from response');
console.log(error);
});
}
}).catch((error) => {
console.log('failed to get response');
console.log(error);
});
});
</script>
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<style id="preauth-style">
* { margin: 0; padding: 0.25em; }
html { background-color: {{ env.bg_color }}; color: {{ env.fg_color }}; display: table;
font-family: sans-serif; font-size: 1.5em; height: 100%; padding: 0; width: 100%; }
body { display: table-cell; vertical-align: middle; }
h1 { font-size: 2.5em; font-weight: normal; text-align: center; }
p { color: {{ env.error_color }}; text-align: center; }
form { align-items: baseline; display: flex; flex-wrap: wrap; justify-content: center; }
form div { width: 45%; min-width: 300px; }
div.right { text-align: right; margin-top: 1em; padding-bottom: 0 }
div.center { text-align: center; }
div.hidden { display: none; }
span { cursor: pointer; font-size: 0.75em; text-decoration: underline; }
button { background-color: #cccccc; }
input { background-color: #ffffff; max-width: 100%; }
button, input { border: 0.0625em solid #333333; border-radius: 0.25em; color: #333333; font-size: 0.9em; }
</style>
+12
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>{{ env.title }}</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
{{- include('_style.html.twig') -}}
</head>
<body id="preauth-body">
{% block content %}{% endblock %}
</body>
</html>
+11
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{% extends 'base.html.twig' %}
{% block content %}
{% if env.teapot|default(true) %}
<h1>{{ env.teapot_title }}</h1>
<p>{{ env.teapot_message }}</p>
{% else %}
<h1>{{ env.too_many_title }}</h1>
<p>{{ env.too_many_message }}</p>
{% endif %}
{% endblock %}
+19
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{% extends 'base.html.twig' %}
{% block content %}
<h1>{{ env.title }}</h1>
<p id="preauth-message">{{ message|default }}</p>
<form id="preauth-form" {% if post ?? false -%} method="post" {%- endif %}>
<input id="nonce" type="hidden" name="nonce" value="{{ nonce }}">
<div class="right"><label for="username">{{ env.id_name }}:</label></div>
<div><input type="text" name="username" id="username" {% if username ?? false %}value="{{ username }}"{% endif %}
autocomplete="username" required="required" autofocus="autofocus"></div>
<div class="right"><label for="totp">{{ env.token_name }}:</label></div>
<div><input type="text" name="totp" id="totp"
autocomplete="one-time-code" required="required"></div>
<div class="center"><button type="submit">{{ env.submit_name }}</button></div>
</form>
{% if not post ?? false %}
{{- include('_script.html.twig') -}}
{% endif %}
{% endblock %}