Use Google SDK open id verification library

.github/workflows/run-tests.yml

@@ -10,57 +10,22 @@ on:
 
 jobs:
   php-tests:
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        php: [8.1, 8.0, 7.4, 7.3]
-        laravel: [9.*, 8.*, 7.*, 6.*, 5.8.*, 5.7.*, 5.6.*]
-        os: [ubuntu-latest]
-        include:
-          - laravel: 9.*
-            testbench: 7.*
-          - laravel: 8.*
-            testbench: 6.*
-          - laravel: 7.*
-            testbench: 5.*
-          - laravel: 6.*
-            testbench: 4.*
-          - laravel: 5.8.*
-            testbench: 3.8.*
-          - laravel: 5.7.*
-            testbench: 3.7.*
-          - laravel: 5.6.*
-            testbench: 3.6.*
-        exclude:
-          - laravel: 9.*
-            php: 7.3
-          - laravel: 9.*
-            php: 7.4
-          - laravel: 5.7.*
-            php: 7.4
-          - laravel: 5.6.*
-            php: 7.4
-          - laravel: 5.5.*
-            php: 7.4
-          - laravel: 5.8.*
-            php: 8.0
-          - laravel: 5.7.*
-            php: 8.0
-          - laravel: 5.6.*
-            php: 8.0
-          - laravel: 5.6.*
-            php: 8.1
-          - laravel: 5.7.*
-            php: 8.1
-          - laravel: 5.8.*
-            php: 8.1
-          - laravel: 6.*
-            php: 8.1
-          - laravel: 7.*
-            php: 8.1
+        payload:
+          - { queue: 'github-actions-laravel9-php81', laravel: '9.*', php: '8.1', 'testbench': '7.*'}
+          - { queue: 'github-actions-laravel9-php80', laravel: '9.*', php: '8.0', 'testbench': '7.*'}
+          - { queue: 'github-actions-laravel8-php81', laravel: '8.*', php: '8.1', 'testbench': '6.*'}
+          - { queue: 'github-actions-laravel8-php80', laravel: '8.*', php: '8.0', 'testbench': '6.*'}
+          - { queue: 'github-actions-laravel8-php74', laravel: '8.*', php: '7.4', 'testbench': '6.*'}
+          - { queue: 'github-actions-laravel7-php80', laravel: '7.*', php: '8.0', 'testbench': '5.*' }
+          - { queue: 'github-actions-laravel7-php74', laravel: '7.*', php: '7.4', 'testbench': '5.*' }
+          - { queue: 'github-actions-laravel6-php80', laravel: '6.*', php: '8.0', 'testbench': '4.*' }
+          - { queue: 'github-actions-laravel6-php74', laravel: '6.*', php: '7.4', 'testbench': '4.*' }
 
-    name: PHP ${{ matrix.php }} - Laravel ${{ matrix.laravel }}
+    name: PHP ${{ matrix.payload.php }} - Laravel ${{ matrix.payload.laravel }}
 
     steps:
       - name: Checkout code
@@ -69,13 +34,13 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: ${{ matrix.php }}
+          php-version: ${{ matrix.payload.php }}
           extensions: mbstring, dom, fileinfo
           coverage: none
 
       - name: Install dependencies
         run: |
-          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
-          composer update --prefer-stable --prefer-dist --no-interaction --ignore-platform-reqs
+          composer require "laravel/framework:${{ matrix.payload.laravel }}" "orchestra/testbench:${{ matrix.payload.testbench }}" --no-interaction --no-update
+          composer update --prefer-stable --prefer-dist --no-interaction
       - name: Execute tests
         run: vendor/bin/phpunit

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+# 2.0.0 - 2022-04-23
+
+**Changed**
+
+- Dropped older PHP and Laravel support
+- Bumped dependencies
+
 ## 1.1.0 - 2022-02-09
 
 **Changed**

README.md

@@ -23,18 +23,15 @@ All these features are supported. This package scans your console kernel (`app/C
 
 # Requirements
 
-This package requires Laravel 5.6 or higher.
+This package requires Laravel 6 or higher.
 
 Please check the table below for supported Laravel and PHP versions:
 
 |Laravel Version| PHP Version |
 |---|---|
-| 5.6 | 7.3
-| 5.7 | 7.3
-| 5.8 | 7.3 or 7.4
-| 6.x | 7.3 or 7.4 or 8.0
-| 7.x | 7.3 or 7.4 or 8.0
-| 8.x | 7.3 or 7.4 or 8.0
+| 6.x | 7.4 or 8.0
+| 7.x | 7.4 or 8.0
+| 8.x | 7.4 or 8.0
 | 9.x | 8.0 or 8.1
 
 # Installation

composer.json

@@ -9,15 +9,12 @@
     ],
     "require": {
         "ext-json": "*",
-        "google/cloud-scheduler": "^1.5",
-        "firebase/php-jwt": "^5.5",
+        "google/cloud-scheduler": "^1.6",
         "phpseclib/phpseclib": "~2.0"
     },
     "require-dev": {
-        "mockery/mockery": "^1.3",
-        "orchestra/testbench": "^3.5 || ^3.6 || ^3.7 || ^3.8 || ^4.0 || ^5.0",
-        "psr/log": "^1.1",
-        "spatie/macroable": "^1.0"
+        "mockery/mockery": "^1.5",
+        "orchestra/testbench": "^4.0 || ^5.0 || ^6.0 || ^7.0"
     },
     "autoload": {
         "psr-4": {

src/CloudSchedulerServiceProvider.php

@@ -10,6 +10,7 @@ class CloudSchedulerServiceProvider extends LaravelServiceProvider
     public function boot(Router $router)
     {
         $this->registerRoutes($router);
+        $this->registerClient();
     }
 
     public function register()
@@ -21,4 +22,9 @@ private function registerRoutes(Router $router)
     {
         $router->post('cloud-scheduler-job', [TaskHandler::class, 'handle']);
     }
+
+    private function registerClient()
+    {
+        $this->app->bind('open-id-verificator', OpenIdVerificatorConcrete::class);
+    }
 }

src/OpenIdVerificator.php

@@ -2,148 +2,17 @@
 
 namespace Stackkit\LaravelGoogleCloudScheduler;
 
-use Carbon\Carbon;
-use Firebase\JWT\JWT;
-use Firebase\JWT\SignatureInvalidException;
-use GuzzleHttp\Client;
-use GuzzleHttp\Exception\ServerException;
-use Illuminate\Support\Arr;
-use Illuminate\Support\Facades\Cache;
-use phpseclib\Crypt\RSA;
-use phpseclib\Math\BigInteger;
-use Throwable;
+use Illuminate\Support\Facades\Facade;
 
-class OpenIdVerificator
+class OpenIdVerificator extends Facade
 {
-    private const V3_CERTS = 'GOOGLE_V3_CERTS';
-    private const URL_OPENID_CONFIG = 'https://accounts.google.com/.well-known/openid-configuration';
-    private const URL_TOKEN_INFO = 'https://www.googleapis.com/oauth2/v3/tokeninfo';
-
-    private $guzzle;
-    private $rsa;
-    private $jwt;
-    private $maxAge = [];
-
-    public function __construct(Client $guzzle, RSA $rsa, JWT $jwt)
-    {
-        $this->guzzle = $guzzle;
-        $this->rsa = $rsa;
-        $this->jwt = $jwt;
-    }
-
-    public function guardAgainstInvalidOpenIdToken($decodedToken)
-    {
-        /**
-         * https://developers.google.com/identity/protocols/oauth2/openid-connect#validatinganidtoken
-         */
-        if (!in_array($decodedToken->iss, ['https://accounts.google.com', 'accounts.google.com'])) {
-            throw new CloudSchedulerException('The given OpenID token is not valid');
-        }
-
-        if ($decodedToken->exp < time()) {
-            throw new CloudSchedulerException('The given OpenID token has expired');
-        }
-
-        if ($decodedToken->aud !== config('laravel-google-cloud-scheduler.app_url')) {
-            throw new CloudSchedulerException('The given OpenID token is not valid');
-        }
-    }
-
-    public function decodeOpenIdToken($openIdToken, $kid, $cache = true)
-    {
-        if (!$cache) {
-            $this->forgetFromCache();
-        }
-
-        $publicKey = $this->getPublicKey($kid);
-
-        try {
-            return $this->jwt->decode($openIdToken, $publicKey, ['RS256']);
-        } catch (SignatureInvalidException $e) {
-            if (!$cache) {
-                throw $e;
-            }
-
-            return $this->decodeOpenIdToken($openIdToken, $kid, false);
-        }
-    }
-
-    public function getPublicKey($kid = null)
-    {
-        if (Cache::has(self::V3_CERTS)) {
-            $v3Certs = Cache::get(self::V3_CERTS);
-        } else {
-            $v3Certs = $this->getFreshCertificates();
-            Cache::put(self::V3_CERTS, $v3Certs, Carbon::now()->addSeconds($this->maxAge[self::URL_OPENID_CONFIG]));
-        }
-
-        $cert = $kid ? collect($v3Certs)->firstWhere('kid', '=', $kid) : $v3Certs[0];
-
-        return $this->extractPublicKeyFromCertificate($cert);
-    }
-
-    private function getFreshCertificates()
-    {
-        $jwksUri =  $this->callApiAndReturnValue(self::URL_OPENID_CONFIG, 'jwks_uri');
-
-        return $this->callApiAndReturnValue($jwksUri, 'keys');
-    }
-
-    private function extractPublicKeyFromCertificate($certificate)
-    {
-        $modulus = new BigInteger(JWT::urlsafeB64Decode($certificate['n']), 256);
-        $exponent = new BigInteger(JWT::urlsafeB64Decode($certificate['e']), 256);
-
-        $this->rsa->loadKey(compact('modulus', 'exponent'));
-
-        return $this->rsa->getPublicKey();
-    }
-
-    public function getKidFromOpenIdToken($openIdToken)
-    {
-        return $this->callApiAndReturnValue(self::URL_TOKEN_INFO . '?id_token=' . $openIdToken, 'kid');
-    }
-
-    private function callApiAndReturnValue($url, $value)
-    {
-        $attempts = 0;
-
-        while (true) {
-            try {
-                $response = $this->guzzle->get($url);
-
-                break;
-            } catch (ServerException $e) {
-                $attempts++;
-
-                if ($attempts >= 3) {
-                    throw $e;
-                }
-
-                sleep(1);
-            }
-        }
-
-        $data = json_decode($response->getBody(), true);
-
-        $maxAge = 0;
-        foreach ($response->getHeader('Cache-Control') as $line) {
-            preg_match('/max-age=(\d+)/', $line, $matches);
-            $maxAge = isset($matches[1]) ? (int) $matches[1] : 0;
-        }
-
-        $this->maxAge[$url] = $maxAge;
-
-        return Arr::get($data, $value);
-    }
-
-    public function isCached()
+    protected static function getFacadeAccessor()
     {
-        return Cache::has(self::V3_CERTS);
+        return 'open-id-verificator';
     }
 
-    public function forgetFromCache()
+    public static function fake(): void
     {
-        Cache::forget(self::V3_CERTS);
+        self::swap(new OpenIdVerificatorFake());
     }
 }

src/OpenIdVerificatorConcrete.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Stackkit\LaravelGoogleCloudScheduler;
+
+use Google\Auth\AccessToken;
+use Illuminate\Support\Facades\Facade;
+
+class OpenIdVerificatorConcrete extends Facade
+{
+    public function verify(?string $token, array $config): void
+    {
+        if (!$token) {
+            throw new CloudSchedulerException('Missing [Authorization] header');
+        }
+
+        (new AccessToken())->verify(
+            $token,
+            [
+                'audience' => config('laravel-google-cloud-scheduler.app_url'),
+                'throwException' => true,
+            ]
+        );
+    }
+}

src/OpenIdVerificatorFake.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Stackkit\LaravelGoogleCloudScheduler;
+
+class OpenIdVerificatorFake
+{
+    public function verify(?string $token, array $config): void
+    {
+        //
+    }
+}