<?php

namespace Illuminate\Routing\Middleware;

use Closure;
use Illuminate\Cache\RateLimiter;
use Illuminate\Contracts\Redis\Factory as Redis;
use Illuminate\Redis\Limiters\DurationLimiter;

class ThrottleRequestsWithRedis extends ThrottleRequests
{
    /**
     * The Redis factory implementation.
     *
     * @var \Illuminate\Contracts\Redis\Factory
     */
    protected $redis;

    /**
     * The timestamp of the end of the current duration by key.
     *
     * @var array
     */
    public $decaysAt = [];

    /**
     * The number of remaining slots by key.
     *
     * @var array
     */
    public $remaining = [];

    /**
     * Create a new request throttler.
     *
     * @param  \Illuminate\Cache\RateLimiter  $limiter
     * @param  \Illuminate\Contracts\Redis\Factory  $redis
     * @return void
     */
    public function __construct(RateLimiter $limiter, Redis $redis)
    {
        parent::__construct($limiter);

        $this->redis = $redis;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  array  $limits
     * @return \Symfony\Component\HttpFoundation\Response
     *
     * @throws \Illuminate\Http\Exceptions\ThrottleRequestsException
     */
    protected function handleRequest($request, Closure $next, array $limits)
    {
        foreach ($limits as $limit) {
            if ($this->tooManyAttempts($limit->key, $limit->maxAttempts, $limit->decaySeconds)) {
                throw $this->buildException($request, $limit->key, $limit->maxAttempts, $limit->responseCallback);
            }
        }

        $response = $next($request);

        foreach ($limits as $limit) {
            $response = $this->addHeaders(
                $response,
                $limit->maxAttempts,
                $this->calculateRemainingAttempts($limit->key, $limit->maxAttempts)
            );
        }

        return $response;
    }

    /**
     * Determine if the given key has been "accessed" too many times.
     *
     * @param  string  $key
     * @param  int  $maxAttempts
     * @param  int  $decaySeconds
     * @return mixed
     */
    protected function tooManyAttempts($key, $maxAttempts, $decaySeconds)
    {
        $limiter = new DurationLimiter(
            $this->getRedisConnection(), $key, $maxAttempts, $decaySeconds
        );

        return tap(! $limiter->acquire(), function () use ($key, $limiter) {
            [$this->decaysAt[$key], $this->remaining[$key]] = [
                $limiter->decaysAt, $limiter->remaining,
            ];
        });
    }

    /**
     * Calculate the number of remaining attempts.
     *
     * @param  string  $key
     * @param  int  $maxAttempts
     * @param  int|null  $retryAfter
     * @return int
     */
    protected function calculateRemainingAttempts($key, $maxAttempts, $retryAfter = null)
    {
        return is_null($retryAfter) ? $this->remaining[$key] : 0;
    }

    /**
     * Get the number of seconds until the lock is released.
     *
     * @param  string  $key
     * @return int
     */
    protected function getTimeUntilNextRetry($key)
    {
        return $this->decaysAt[$key] - $this->currentTime();
    }

    /**
     * Get the Redis connection that should be used for throttling.
     *
     * @return \Illuminate\Redis\Connections\Connection
     */
    protected function getRedisConnection()
    {
        return $this->redis->connection();
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox