Add user invites

app/Http/Controllers/UserInviteController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Auth;
+use App\UserInvite;
+use Illuminate\Support\Str;
+
+class UserInviteController extends Controller
+{
+	public function __construct()
+	{
+		abort_if(!config('pixelfed.user_invites.enabled'), 404);
+	}
+
+	public function create(Request $request)
+	{
+		abort_unless(Auth::check(), 403);
+		return view('settings.invites.create');
+	}
+
+	public function show(Request $request)
+	{
+		abort_unless(Auth::check(), 403);
+		$invites = UserInvite::whereUserId(Auth::id())->paginate(10);
+		$limit = config('pixelfed.user_invites.limit.total');
+		$used = UserInvite::whereUserId(Auth::id())->count();
+		return view('settings.invites.home', compact('invites', 'limit', 'used'));
+	}
+
+	public function store(Request $request)
+	{
+		abort_unless(Auth::check(), 403);
+		$this->validate($request, [
+			'email' => 'required|email|unique:users|unique:user_invites',
+			'message' => 'nullable|string|max:500',
+			'tos'	=> 'required|accepted'
+		]);
+
+		$invite = new UserInvite;
+		$invite->user_id = Auth::id();
+		$invite->profile_id = Auth::user()->profile->id;
+		$invite->email = $request->input('email');
+		$invite->message = $request->input('message');
+		$invite->key = (string) Str::uuid();
+		$invite->token = str_random(32);
+		$invite->save();
+
+		return redirect(route('settings.invites'));
+	}
+}

app/UserInvite.php

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+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class UserInvite extends Model
+{
+    public function url()
+    {
+    	$path = '/i/invite/code';
+    	$url = url($path, [$this->key, $this->token]);
+    	return $url;
+    }
+}

database/migrations/2019_02_15_033323_create_user_invites_table.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateUserInvitesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('user_invites', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->bigInteger('user_id')->unsigned()->index();
+            $table->bigInteger('profile_id')->unsigned()->index();
+            $table->string('email')->unique()->index();
+            $table->text('message')->nullable();
+            $table->string('key');
+            $table->string('token');
+            $table->timestamp('valid_until')->nullable();
+            $table->timestamp('used_at')->nullable()->index();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('user_invites');
+    }
+}