2FAuth/app/Http/Controllers/TwoFAccountController.php

<?php

namespace App\Http\Controllers;

use App\TwoFAccount;
use OTPHP\TOTP;
use OTPHP\Factory;
use Illuminate\Http\Request;
use ParagonIE\ConstantTime\Base32;
use Illuminate\Support\Facades\Storage;

class TwoFAccountController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return response()->json(TwoFAccount::all()->toArray());
    }


    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $twofaccount = TwoFAccount::create([
            'service' => $request->service,
            'account' => $request->account,
            'uri' => $request->uri,
            'icon' => $request->icon
        ]);

        return response()->json($twofaccount, 201);
    }


    /**
     * Display the specified resource.
     *
     * @param  \App\TwoFAccount  $twofaccount
     * @return \Illuminate\Http\Response
     */
    public function show(TwoFAccount $twofaccount)
    {
        return response()->json($twofaccount, 200);
    }


    /**
     * Generate a TOTP
     *
     * @param  \App\TwoFAccount  $twofaccount
     * @return \Illuminate\Http\Response
     */
    public function generateTOTP(TwoFAccount $twofaccount)
    {
        try {
            $otp = Factory::loadFromProvisioningUri($twofaccount->uri);
        } catch (InvalidArgumentException $exception) {
            return response()->json([
                'message' => 'Error generating TOTP',
            ], 500);
        }

        $currentPosition = time();
        $PeriodCount = floor($currentPosition / 30); //nombre de période de 30s depuis T0
        $currentPeriodStartAt = $PeriodCount * 30;
        $currentPeriodendAt = $currentPeriodStartAt + 30;
        $positionInCurrentPeriod = $currentPosition - $currentPeriodStartAt;


        return response()->json([
                'totp' => $otp->now(),
                'position' => $positionInCurrentPeriod
            ], 200);

    }


    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\TwoFAccount  $twofaccount
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, TwoFAccount $twofaccount)
    {
        $twofaccount->update($request->all());

        return response()->json($twofaccount, 200);
    }


    /**
     * Remove the specified resource from storage.
     *
     * @param  \App\TwoFAccount  $twofaccount
     * @return \Illuminate\Http\Response
     */
    public function destroy(TwoFAccount $twofaccount)
    {
        // delete icon
        $storedIcon = 'public/icons/' . $twofaccount->icon;

        if( Storage::exists($storedIcon) ) {
            Storage::delete($storedIcon);
        }

        $twofaccount->delete();

        return response()->json(null, 204);
    }

}