feat: support gdpr (#48)

* feat: support gdpr

* Apply fixes from StyleCI

---------

Co-authored-by: StyleCI Bot <bot@styleci.io>

.github/workflows/backend.yml

@@ -8,4 +8,5 @@ jobs:
     with:
       enable_backend_testing: false
       enable_phpstan: true
+      php_versions: '["8.0", "8.1", "8.2"]'
       backend_directory: .

composer.json

@@ -30,7 +30,7 @@
         }
     ],
     "require": {
-        "flarum/core": "^1.2.0"
+        "flarum/core": "^1.8.3"
     },
     "replace": {
         "flagrow/terms": "*"
@@ -63,7 +63,8 @@
         }
     },
     "require-dev": {
-        "flarum/phpstan": "*"
+        "flarum/phpstan": "*",
+        "blomstra/gdpr": "@beta"
     },
     "scripts": {
         "analyse:phpstan": "phpstan analyse",

extend.php

@@ -11,6 +11,7 @@
 
 namespace FoF\Terms;
 
+use Blomstra\Gdpr\Extend\UserData;
 use Flarum\Api\Controller\ShowForumController;
 use Flarum\Api\Serializer\BasicUserSerializer;
 use Flarum\Api\Serializer\ForumSerializer;
@@ -95,4 +96,10 @@
             $data['fofTermsPolicies'] = $policies->all();
         })
         ->addInclude('fofTermsPolicies'),
+
+    (new Extend\Conditional())
+        ->whenExtensionEnabled('blomstra-gdpr', fn () => [
+            (new UserData())
+                ->addType(Data\UserPolicyData::class),
+        ]),
 ];

resources/locale/en.yml

@@ -74,3 +74,10 @@ fof-terms:
 
         user_controls:
             state_button: Terms accept state
+
+blomstra-gdpr:
+    lib:
+        data:
+            userpolicydata:
+                export_description: Details about the user's acceptance of the terms
+                delete_description: Removes the user's acceptance of the terms

src/Data/UserPolicyData.php

@@ -0,0 +1,74 @@
+<?php
+
+/*
+ * This file is part of fof/terms.
+ *
+ * Copyright (c) FriendsOfFlarum.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FoF\Terms\Data;
+
+use Blomstra\Gdpr\Data\Type;
+use Carbon\Carbon;
+use FoF\Terms\Policy;
+use FoF\Terms\Repositories\PolicyRepository;
+use Illuminate\Database\Eloquent\Collection;
+
+class UserPolicyData extends Type
+{
+    public function export(): ?array
+    {
+        $exportData = [];
+
+        $policyRepository = resolve(PolicyRepository::class);
+
+        $policyRepository->all()->each(function (Policy $policy) use (&$exportData) {
+            $exportData[] = ["terms/policy-{$policy->id}.json" => $this->encodeForExport($this->constructExportData($policy))];
+        });
+
+        return $exportData;
+    }
+
+    protected function constructExportData(Policy $policy): array
+    {
+        /**
+         * @var Collection $userPolicies
+         *
+         * @phpstan-ignore-next-line
+         */
+        $userPolicies = $this->user->fofTermsPolicies->keyBy('id');
+
+        $accepted_at = $userPolicies->has($policy->id) ? Carbon::parse($userPolicies->get($policy->id)->pivot->accepted_at) : null;
+        $has_update = !$accepted_at || (($policy->terms_updated_at !== null) && $policy->terms_updated_at->gt($accepted_at));
+
+        return [
+            'name'             => $policy->name,
+            'url'              => $policy->url,
+            'created_at'       => $policy->created_at,
+            'update_message'   => $policy->update_message,
+            'terms_updated_at' => $policy->terms_updated_at,
+            'accepted_at'      => $accepted_at,
+            'has_update'       => $has_update,
+            'must_accept'      => $has_update && !$this->user->can('postponeAccept', $policy),
+        ];
+    }
+
+    public static function anonymizeDescription(): string
+    {
+        return self::deleteDescription();
+    }
+
+    public function anonymize(): void
+    {
+        $this->delete();
+    }
+
+    public function delete(): void
+    {
+        $policyRepository = resolve(PolicyRepository::class);
+        $policyRepository->declineAll($this->user);
+    }
+}

src/Repositories/PolicyRepository.php

@@ -216,6 +216,11 @@ public function acceptAll(User $user)
         $this->getUserPolicyRelationship($user)->attach($relationship);
     }
 
+    public function declineAll(User $user)
+    {
+        $this->getUserPolicyRelationship($user)->detach();
+    }
+
     public function sorting(array $sorting)
     {
         foreach ($sorting as $i => $fieldId) {