<?phpnamespace illuminate\cache;use illuminate\contracts\cache\repository as cache;// declare namespaceclass RateLimiter{// RateLimiter /** * The cache store implementation. * * @var \illuminate\contracts\cache\repository * / protected $cache;// a interface instance / ** * create a new rate limiter instance. * * @param \illuminate\contracts\cache\ repository $cache * @return void */ public function __construct (cache $cache) { $this->cache = $cache; }// a big set to init a class, instance about cache. /** * Determine if the given key has been " Accessed " too many times. * determine whether to add many times * @param string $key * @param int $maxAttempts * @param int $decayMinutes * @return Bool */ public function toomanyattempts ($key, $maxAttempts, $decayMinutes = 1)// increment too many attempts { if ($this->cache->has ($key. ': Lockout ')) { return true; }// check lockout, if ($this Attempts ($key) > $maxAttempts) { $this->cache->add ($key. ': Lockout ', time () + ($decayMinutes * 60), $decayMinutes); return true; }// to change the access weight return false; }// done is to back true, or back false /** * increment the counter for a given key for a given decay time. * * @param string $key * @param int $decayMinutes * @return int */ public function hit ($ key, $decayMinutes = 1) { $this->cache->add ($key, 1, $decayMinutes); return (int) $this->cache->increment ($key); }// to add a increment time, increment // this is hit function to change time /** * get the number of attempts for the given key. * * @param string $key * @return mixed */ public function attempts ($key) { return $this->cache->get ($key, 0); }// get value by key /** * Get the number of retries left for the given key. * * @param string $ key * @param int $maxAttempts * @return int */ public function retriesleft ($key, $maxAttempts) { $attempts = $this- >attempts ($key);// try to get value return $attempts === 0 ? $maxAttempts : $maxAttempts - $attempts + 1; }// a retirsleft ,a left times /** * clear the hits and lockout for the given key. * * @param string $key * @return void */ public function clear ($key) { $this->cache->forget ($key); $this->cache->forgET ($key. ': Lockout '); }// clear the hit and forget key and forget an shadow key,that is $key.: lockout /** * Get the number of seconds until the " Key " is accessible again. * * @ param string $key * @return int */ public function availablein ($key) { return $this->cache->get ($key. ': Lockout ') - time (); }// has the time back, get the can be used times}
This article is from the "Focus on PHP" blog, please be sure to keep this source http://lijinghsan.blog.51cto.com/3357095/1759061
Daily laravel-20160624| Ratelimiter