2FAuth/app/Api/v1/Requests/TwoFAccountUpdateRequest.php

<?php

namespace App\Api\v1\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Fluent;
use Illuminate\Validation\Validator;

class TwoFAccountUpdateRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return Auth::check();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'service'   => 'present|nullable|string|regex:/^[^:]+$/i',
            'account'   => 'required|string|regex:/^[^:]+$/i',
            'icon'      => 'present|nullable|string',
            'group_id'  => 'sometimes|nullable|integer|min:0',
            'otp_type'  => 'required|string|in:totp,hotp,steamtotp',
            'secret'    => ['present', 'string', 'bail', new \App\Rules\IsBase32Encoded],
            'digits'    => 'present|integer|between:5,10',
            'algorithm' => 'present|string|in:sha1,sha256,sha512,md5',
            'period'    => 'nullable|integer|min:1',
            'counter'   => 'nullable|integer|min:0',
        ];
    }

    /**
     * Get the "withValidator" validation callables for the request.
     */
    public function withValidator(Validator $validator) : void
    {
        // The account may have to be assign to a specific group.
        // If so, we check if the provided group exists.
        $validator->sometimes('group_id', 'exists:groups,id', function (Fluent $input) {
            return $input['group_id'] > 0;
        });
    }

    /**
     * Prepare the data for validation.
     *
     * @codeCoverageIgnore
     *
     * @return void
     */
    protected function prepareForValidation()
    {
        $this->merge([
            'otp_type'  => strtolower($this->otp_type),
            'algorithm' => strtolower($this->algorithm),
        ]);
    }
}