Admin can now hopefully add a passkey to their account

.eslintrc.yml

@@ -1,6 +1,6 @@
 parserOptions:
   sourceType: 'module'
-  ecmaVersion: 8
+  ecmaVersion: 'latest'
 extends: 'eslint:recommended'
 env:
   browser: true
@@ -25,3 +25,14 @@ rules:
     - allow:
       - warn
       - error
+  no-await-in-loop:
+    - error
+  no-promise-executor-return:
+    - error
+  require-atomic-updates:
+    - error
+  max-nested-callbacks:
+    - error
+    - 3
+  prefer-promise-reject-errors:
+    - error

app/Http/Controllers/Admin/PasskeysController.php

@@ -0,0 +1,93 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\Passkey;
+use App\Models\User;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Facades\Validator;
+use Illuminate\View\View;
+
+/**
+ * @psalm-suppress UnusedClass
+ */
+class PasskeysController extends Controller
+{
+    public function index(): View
+    {
+        $user = auth()->user();
+        $passkeys = $user->passkey;
+
+        return view('admin.passkeys.index', compact('passkeys'));
+    }
+
+    public function save(Request $request): JsonResponse
+    {
+        $validator = Validator::make($request->all(), [
+            'id' => 'required|string|unique:App\Models\Passkey,passkey_id',
+            'public_key' => 'required|file',
+            'transports' => 'required|json',
+            'challenge' => 'required|string',
+        ]);
+
+        if ($validator->fails()) {
+            return response()->json([
+                'success' => false,
+                'message' => 'Passkey could not be saved (validation failed)',
+            ]);
+        }
+
+        $validated = $validator->validated();
+
+        if (
+            !session()->has('challenge') ||
+            $validated['challenge'] !== session('challenge')
+        ) {
+            return response()->json([
+                'success' => false,
+                'message' => 'Passkey could not be saved (challenge failed)',
+            ]);
+        }
+
+        $passkey = new Passkey();
+        $passkey->passkey_id = $validated['id'];
+        $passkey->passkey = $validated['public_key']->get();
+        $passkey->transports = json_decode($validated['transports'], true, 512, JSON_THROW_ON_ERROR);
+        $passkey->user_id = auth()->user()->id;
+        $passkey->save();
+
+        return response()->json([
+            'success' => true,
+            'message' => 'Passkey saved successfully',
+        ]);
+    }
+
+    public function init(): JsonResponse
+    {
+        /** @var User $user */
+        $user = auth()->user();
+        $passkeys = $user->passkey()->get();
+
+        $existing = $passkeys->map(function (Passkey $passkey) {
+            return [
+                'id' => $passkey->passkey_id,
+                'transports' => $passkey->transports,
+                'type' => 'public-key',
+            ];
+        })->all();
+
+        $challenge = Hash::make(random_bytes(32));
+        session(['challenge' => $challenge]);
+
+        return response()->json([
+            'challenge' => $challenge,
+            'userId' => $user->name,
+            'existing' => $existing,
+        ]);
+    }
+}

app/Models/Passkey.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Casts\Attribute;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Passkey extends Model
+{
+    use HasFactory;
+
+    /**
+     * Save and access the passkey appropriately.
+     */
+    protected function passkey(): Attribute
+    {
+        return Attribute::make(
+            get: static fn ($value) => stream_get_contents($value),
+            set: static fn ($value) => pg_escape_bytea($value),
+        );
+    }
+
+    /**
+     * Save and access the transports appropriately.
+     */
+    protected function transports(): Attribute
+    {
+        return Attribute::make(
+            get: static fn ($value) => json_decode($value, true, 512, JSON_THROW_ON_ERROR),
+            set: static fn ($value) => json_encode($value, JSON_THROW_ON_ERROR),
+        );
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+}

app/Models/User.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
@@ -24,4 +25,9 @@ class User extends Authenticatable
         'password',
         'remember_token',
     ];
+
+    public function passkey(): HasMany
+    {
+        return $this->hasMany(Passkey::class);
+    }
 }

composer.json

@@ -9,6 +9,7 @@
         "ext-dom": "*",
         "ext-intl": "*",
         "ext-json": "*",
+        "ext-pgsql": "*",
         "cviebrock/eloquent-sluggable": "^10.0",
         "guzzlehttp/guzzle": "^7.2",
         "indieauth/client": "^1.1",

database/factories/PasskeyFactory.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Passkey;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Passkey>
+ */
+class PasskeyFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = Passkey::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'user_id' => $this->faker->numberBetween(1, 1000),
+            'passkey_id' => $this->faker->uuid,
+            'passkey' => $this->faker->sha256,
+            'transports' => ['internal'],
+        ];
+    }
+}

database/migrations/2023_08_27_113904_create_passkeys.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('passkeys', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('user_id');
+            $table->string('passkey_id')->unique();
+            $table->binary('passkey');
+            $table->json('transports');
+            $table->timestamps();
+
+            $table->foreign('user_id')->references('id')->on('users');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('passkeys');
+    }
+};

resources/js/app.js

@@ -1,10 +1,11 @@
 import '../css/app.css';
 
-// import { Auth } from './auth.js';
-//
-// let auth = new Auth();
+import { Auth } from './auth.js';
 
-// auth.createCredentials().then((credentials) => {
-//   // eslint-disable-next-line no-console
-//   console.log(credentials);
-// });
+let auth = new Auth();
+
+document.querySelectorAll('.add-passkey').forEach((el) => {
+  el.addEventListener('click', () => {
+    auth.register();
+  });
+});

resources/js/auth.js

@@ -1,35 +1,88 @@
 class Auth {
   constructor() {}
 
-  async createCredentials() {
+  async register() {
+    const { challenge, userId, existing } = await this.getRegisterData();
+
     const publicKeyCredentialCreationOptions = {
-      challenge: Uint8Array.from(
-        'randomStringFromServer',
-        c => c.charCodeAt(0)
-      ),
+      challenge: new TextEncoder().encode(challenge),
       rp: {
-        id: 'jonnybarnes.localhost',
         name: 'JB',
       },
       user: {
-        id: Uint8Array.from(
-          'UZSL85T9AFC',
-          c => c.charCodeAt(0)
-        ),
+        id: new TextEncoder().encode(userId),
         name: 'jonny@jonnybarnes.uk',
         displayName: 'Jonny',
       },
-      pubKeyCredParams: [{alg: -7, type: 'public-key'}],
-      // authenticatorSelection: {
-      //   authenticatorAttachment: 'cross-platform',
-      // },
+      pubKeyCredParams: [
+        {alg: -8, type: 'public-key'}, // Ed25519
+        {alg: -7, type: 'public-key'}, // ES256
+        {alg: -257, type: 'public-key'}, // RS256
+      ],
+      excludeCredentials: existing,
+      authenticatorSelection: {
+        userVerification: 'preferred',
+        residentKey: 'required',
+      },
       timeout: 60000,
-      attestation: 'direct'
     };
 
-    return await navigator.credentials.create({
+    const publicKeyCredential = await navigator.credentials.create({
       publicKey: publicKeyCredentialCreationOptions
     });
+    if (!publicKeyCredential) {
+      throw new Error('Error generating a passkey');
+    }
+    const {
+      id // the key id a.k.a. kid
+    } = publicKeyCredential;
+    const publicKey = publicKeyCredential.response.getPublicKey();
+    const transports = publicKeyCredential.response.getTransports();
+    const response = publicKeyCredential.response;
+    const clientJSONArrayBuffer = response.clientDataJSON;
+    const clientJSON = JSON.parse(new TextDecoder().decode(clientJSONArrayBuffer));
+    const clientChallenge = clientJSON.challenge;
+    // base64 decode the challenge
+    const clientChallengeDecoded = atob(clientChallenge);
+
+    const saved = await this.savePasskey(id, publicKey, transports, clientChallengeDecoded);
+
+    if (saved) {
+      window.location.reload();
+    } else {
+      alert('There was an error saving the passkey');
+    }
+  }
+
+  async getRegisterData() {
+    const response = await fetch('/admin/passkeys/init');
+
+    return await response.json();
+  }
+
+  async savePasskey(id, publicKey, transports, challenge) {
+    const formData = new FormData();
+    formData.append('id', id);
+    formData.append('transports', JSON.stringify(transports));
+    formData.append('challenge', challenge);
+
+    // Convert the ArrayBuffer to a Uint8Array
+    const publicKeyArray = new Uint8Array(publicKey);
+
+    // Create a Blob from the Uint8Array
+    const publicKeyBlob = new Blob([publicKeyArray], { type: 'application/octet-stream' });
+
+    formData.append('public_key', publicKeyBlob);
+
+    const response = await fetch('/admin/passkeys/save', {
+      method: 'POST',
+      body: formData,
+      headers: {
+        'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content'),
+      },
+    });
+
+    return response.ok;
   }
 }
 

resources/views/admin/passkeys/index.blade.php

@@ -0,0 +1,18 @@
+@extends('master')
+
+@section('title')Passkeys « Admin CP « @stop
+
+@section('content')
+    <h1>Passkeys</h1>
+    @if(count($passkeys) > 0)
+        <p>You have the following passkeys saved:</p>
+        <ul>
+            @foreach($passkeys as $passkey)
+                <li>{{ $passkey->passkey_id }}</li>
+            @endforeach
+        </ul>
+    @else
+        <p>You have no passkey saved.</p>
+    @endif
+    <button type="button" class="add-passkey">Add Passkey</button>
+@stop

resources/views/admin/welcome.blade.php

@@ -54,6 +54,6 @@
 
     <h2>Passkeys</h2>
     <p>
-        List passkeys here?
+        Manager <a href="/admin/passkeys">your passkeys</a>.
     </p>
 @stop

resources/views/master.blade.php

@@ -2,6 +2,7 @@
 <html lang="en-GB">
     <head>
         <meta charset="UTF-8">
+        <meta name="csrf-token" content="{{ csrf_token() }}">
         <title>@yield('title'){{ config('app.name') }}</title>
         <meta name="viewport" content="width=device-width">
         @if (!empty(config('app.font_link')))

routes/web.php

@@ -7,6 +7,7 @@ use App\Http\Controllers\Admin\ContactsController as AdminContactsController;
 use App\Http\Controllers\Admin\HomeController;
 use App\Http\Controllers\Admin\LikesController as AdminLikesController;
 use App\Http\Controllers\Admin\NotesController as AdminNotesController;
+use App\Http\Controllers\Admin\PasskeysController;
 use App\Http\Controllers\Admin\PlacesController as AdminPlacesController;
 use App\Http\Controllers\Admin\SyndicationTargetsController;
 use App\Http\Controllers\ArticlesController;
@@ -141,6 +142,13 @@ Route::group(['domain' => config('url.longurl')], function () {
             Route::get('/', [BioController::class, 'show'])->name('admin.bio.show');
             Route::put('/', [BioController::class, 'update']);
         });
+
+        // Passkeys
+        Route::group(['prefix' => 'passkeys'], static function () {
+            Route::get('/', [PasskeysController::class, 'index']);
+            Route::post('save', [PasskeysController::class, 'save']);
+            Route::get('/init', [PasskeysController::class, 'init']);
+        });
     });
 
     // Blog pages using ArticlesController