Changeset View

Standalone View

				<?php

				namespace App\Policy\SPF;

				use Illuminate\Support\Facades\Cache as LaravelCache;

				/**
				* A caching layer for SPF check results, as sometimes the chasing of DNS entries can take a while but submissions
				* inbound are virtually not rate-limited.
				*
				* A cache key should have the format of ip(4\|6)_id_domain and last for 12 hours.
				*
				* A cache value should have a serialized version of the \SPFLib\Checker.
				*/
				class Cache
				{
				public static function get($key)
				{
				if (LaravelCache::has($key)) {
				return LaravelCache::get($key);
				}

				return null;
				}

				public static function has($key)
				{
				return LaravelCache::has($key);
				}

				public static function set($key, $value)
				{
				if (LaravelCache::has($key)) {
				LaravelCache::forget($key);
				}

				// cache the DNS record result for 12 hours
				LaravelCache::put($key, $value, 60 * 60 * 12);
				}
				}