Add user invitation facilities RSM-5

Adds user invitation to teams, and framework for assigning taems
Also adds user acc. deletion.

app/Traits/ReceivesAccountTokens.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Traits;
+
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Auth;
+
+use Illuminate\Http\Request;
+
+
+use App\Http\Requests\UserDeleteRequest;
+use App\Mail\UserAccountDeleteConfirmation;
+use App\User;
+
+
+trait ReceivesAccountTokens
+{
+    public function userDelete(UserDeleteRequest $request)
+    {
+        // a little verbose
+        $user = User::find(Auth::user()->id);
+        $tokens = $user->generateAccountTokens();
+
+        Mail::to($user)->send(new UserAccountDeleteConfirmation($user, $tokens, $request->ip()));
+
+        $user->delete();
+        Auth::logout();
+
+        $request->session()->flash('success', 'Please check your email to finish deleting your account.');
+        return redirect()->to('/');
+    }
+
+
+    public function processDeleteConfirmation(Request $request, $ID, $action, $token)
+    {
+        // We can't rely on Laravel's route model injection, because it'll ignore soft-deleted models,
+        // so we have to use a special scope to find them ourselves.
+        $user = User::withTrashed()->findOrFail($ID);
+        $email = $user->email;
+
+        switch($action)
+        {
+            case 'confirm':
+
+                if ($user->verifyAccountToken($token, 'deleteToken'))
+                {
+                    Log::info('SECURITY: User deleted account!', [
+
+                        'confirmDeleteToken' => $token,
+                        'ipAddress' => $request->ip(),
+                        'email' => $user->email
+
+                    ]);
+                    
+                    
+                
+                    $user->forceDelete();
+
+                    $request->session()->flash('success', 'Account permanently deleted. Thank you for using our service.');
+                    return redirect()->to('/');
+                }
+
+                break;
+            
+            case 'cancel':
+
+                if ($user->verifyAccountToken($token, 'cancelToken'))
+                {
+                    $user->restore();
+                    $request->session()->flash('success', 'Account deletion cancelled! You may now login.');
+
+                    return redirect()->to(route('login'));
+                }
+
+                break;
+            
+            default:
+            
+                abort(404, 'The page you were trying to access may not exist or may be expired.');
+        }
+
+    }
+}