adds wbs-user:disable command

app/Console/Commands/User/Disable.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Console\Commands\User;
+
+/**
+ * Disables a user account, deletes information about their email address and their password hash.
+ * Requires the user to manage zero wikis.
+ */
+
+use App\User;
+use App\WikiManager;
+use Illuminate\Console\Command;
+
+class Disable extends Command {
+    protected $signature = 'wbs-user:disable {--email=}';
+
+    protected $description = 'Disable user account';
+
+    public function handle(): int {
+        $email = $this->option('email');
+
+        $user = User::whereEmail($email)->first();
+
+        if (empty($email)) {
+            $this->error("Error: no email address provided. usage: wbs-user:disable --email='mail@address.com'");
+
+            return 1;
+        }
+
+        if (!$user) {
+            $this->error("Error: Could not find a user for '$email'.");
+
+            return 2;
+        }
+
+        $userWikiManagers = WikiManager::whereUserId($user->id)->with('wiki')->get();
+        $undeletedWikis = [];
+
+        foreach ($userWikiManagers as $userWikiManager) {
+            $userWiki = $userWikiManager->wiki;
+
+            if ($userWiki !== null) {
+                $undeletedWikis[] = $userWiki->domain;
+            }
+        }
+
+        if (!empty($undeletedWikis)) {
+            $this->error('Error: User still has wikis: ' . print_r($undeletedWikis, true));
+
+            return 3;
+        }
+
+        $userId = $user->id;
+        $user->email = '';
+        $user->password = random_bytes(10);
+        $user->verified = false;
+
+        if ($user->save()) {
+            $this->info("Successfully disabled user account with email '$email' (id: '$userId')");
+            $this->info('Information about email and password hash was deleted.');
+
+            return 0;
+        } else {
+            $this->error('Error: Failed to save changes to the database.');
+
+            return 4;
+        }
+    }
+}

tests/Commands/User/DisableTest.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Tests\Commands;
+
+use App\User;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
+use Tests\TestCase;
+
+class DisableTest extends TestCase {
+    use DatabaseTransactions;
+
+    const EMAIL = 'mail@example.com';
+
+    private function createUser($email) {
+        $user = new User([
+            'email' => $email,
+            'password' => 'worldsstrongestpassword',
+        ]);
+        $user->save();
+
+        return $user;
+    }
+
+    public function testSuccess() {
+        $oldUser = $this->createUser(self::EMAIL);
+        $oldUserId = $oldUser->id;
+
+        $this->artisan('wbs-user:disable',
+            [
+                '--email' => self::EMAIL,
+            ]
+        )->assertExitCode(0);
+
+        $newUser = User::firstWhere('id', $oldUserId);
+
+        $this->assertSame($oldUser->id, $newUser->id);
+        $this->assertSame($newUser->email, '');
+        $this->assertFalse($newUser->hasVerifiedEmail());
+    }
+
+    public function testUserNotFound() {
+        $this->artisan('wbs-user:disable',
+            [
+                '--email' => self::EMAIL,
+            ]
+        )->assertExitCode(2);
+    }
+}