6e290a5712
Change-Id: Ibd2c1351973f710927ecf2909d73a6fe7d3404e4 Signed-off-by: smarcet <smarcet@gmail.com>
119 lines
4.3 KiB
PHP
119 lines
4.3 KiB
PHP
<?php namespace App\Http\Middleware;
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/**
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* Copyright 2015 OpenStack Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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use Closure;
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use Illuminate\Support\Facades\Config;
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use Illuminate\Http\JsonResponse;
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use libs\utils\ICacheService;
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use Illuminate\Support\Facades\Log;
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use models\oauth2\IResourceServerContext;
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/**
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* Class CacheMiddleware
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* @package App\Http\Middleware
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*/
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final class CacheMiddleware
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{
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/**
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* @var ICacheService
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*/
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private $cache_service;
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/**
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* @var IResourceServerContext
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*/
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private $context;
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public function __construct(IResourceServerContext $context, ICacheService $cache_service)
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{
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$this->context = $context;
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$this->cache_service = $cache_service;
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}
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/**
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* @param $request
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* @param Closure $next
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* @param $cache_lifetime
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* @return JsonResponse
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*/
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public function handle($request, Closure $next, $cache_lifetime)
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{
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Log::debug('CacheMiddleware::handle');
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$cache_lifetime = intval($cache_lifetime);
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if ($request->getMethod() !== 'GET') {
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// short circuit
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Log::debug('CacheMiddleware::handle method is not GET');
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return $next($request);
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}
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$key = $request->getPathInfo();
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$query = $request->getQueryString();
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$current_time = time();
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$evict_cache = false;
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if (!empty($query)) {
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Log::debug(sprintf('CacheMiddleware::handle query %s', $query));
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$query = explode('&', $query);
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foreach ($query as $q) {
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$q = explode('=', $q);
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if(strtolower($q[0]) === "evict_cache"){
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if(strtolower($q[1]) === '1') {
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Log::debug('CacheMiddleware::handle cache will be evicted');
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$evict_cache = true;
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}
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continue;
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}
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if (strtolower($q[0]) === 'q' || strtolower($q[0]) === 'access_token' || strtolower($q[0]) === 'token_type') continue;
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$key .= "." . implode("=", $q);
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}
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}
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if (str_contains($request->getPathInfo(), '/me')) {
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$current_member = $this->context->getCurrentUser();
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if (!is_null($current_member))
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$key .= ':' . $current_member->getId();
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}
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$data = $this->cache_service->getSingleValue($key);
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$time = $this->cache_service->getSingleValue($key . ".generated");
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if (empty($data) || empty($time) || $evict_cache) {
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$time = $current_time;
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Log::debug(sprintf("CacheMiddleware::handle cache value not found for key %s , getting from api...", $key));
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// normal flow ...
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$response = $next($request);
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if ($response instanceof JsonResponse && $response->getStatusCode() === 200) {
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// and if its json, store it on cache ...
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$data = $response->getData(true);
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$this->cache_service->setSingleValue($key, gzdeflate(json_encode($data), 9), $cache_lifetime);
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$this->cache_service->setSingleValue($key . ".generated", $time, $cache_lifetime);
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}
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} else {
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$ttl = $this->cache_service->ttl($key);
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// cache hit ...
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Log::debug(sprintf("CacheMiddleware::handle cache hit for %s - ttl %s ...", $key, $ttl));
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$response = new JsonResponse(json_decode(gzinflate($data), true), 200, [
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'content-type' => 'application/json',
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]
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);
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}
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$response->headers->set('xcontent-timestamp', $time);
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$response->headers->set('Cache-Control', sprintf('private, max-age=%s', $cache_lifetime));
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$response->headers->set('Expires', gmdate('D, d M Y H:i:s \G\M\T', $time + $cache_lifetime));
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return $response;
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}
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} |