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EDITING: GreedyCacheStrategy.php

<?php

namespace Kevinrob\GuzzleCache\Strategy;

use Kevinrob\GuzzleCache\CacheEntry;
use Kevinrob\GuzzleCache\KeyValueHttpHeader;
use Kevinrob\GuzzleCache\Storage\CacheStorageInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * This strategy represents a "greedy" HTTP client.
 *
 * It can be used to cache responses in spite of any cache related response headers,
 * but it SHOULDN'T be used unless absolutely necessary, e.g. when accessing
 * badly designed APIs without Cache control.
 *
 * Obviously, this follows no RFC :(.
 */
class GreedyCacheStrategy extends PrivateCacheStrategy
{
    const HEADER_TTL = 'X-Kevinrob-GuzzleCache-TTL';

/**
     * @var int
     */
    protected $defaultTtl;

/**
     * @var KeyValueHttpHeader
     */
    private $varyHeaders;

public function __construct(
        ?CacheStorageInterface $cache = null,
        $defaultTtl = 60,
        ?KeyValueHttpHeader $varyHeaders = null,
    ) {
        $this->defaultTtl = $defaultTtl;
        $this->varyHeaders = $varyHeaders;
        parent::__construct($cache);
    }

protected function getCacheKey(RequestInterface $request, ?KeyValueHttpHeader $varyHeaders = null)
    {
        if (null === $varyHeaders || $varyHeaders->isEmpty()) {
            return hash(
                'sha256',
                'greedy'.$request->getMethod().$request->getUri()
            );
        }

$cacheHeaders = [];
        foreach ($varyHeaders as $key => $value) {
            if ($request->hasHeader($key)) {
                $cacheHeaders[$key] = $request->getHeader($key);
            }
        }

return hash(
            'sha256',
            'greedy'.$request->getMethod().$request->getUri().json_encode($cacheHeaders)
        );
    }

public function cache(RequestInterface $request, ResponseInterface $response)
    {
        $warningMessage = sprintf('%d - "%s" "%s"',
            299,
            'Cached although the response headers indicate not to do it!',
            (new \DateTime())->format(\DateTime::RFC1123)
        );

$response = $response->withAddedHeader('Warning', $warningMessage);

if ($cacheObject = $this->getCacheObject($request, $response)) {
            return $this->storage->save(
                $this->getCacheKey($request, $this->varyHeaders),
                $cacheObject
            );
        }

return false;
    }

protected function getCacheObject(RequestInterface $request, ResponseInterface $response)
    {
        if (!array_key_exists($response->getStatusCode(), $this->statusAccepted)) {
            // Don't cache it
            return null;
        }

if (null !== $this->varyHeaders && $this->varyHeaders->has('*')) {
            // This will never match with a request
            return;
        }

$response = $response->withoutHeader('Etag')->withoutHeader('Last-Modified');

$ttl = $this->defaultTtl;
        if ($request->hasHeader(static::HEADER_TTL)) {
            $ttlHeaderValues = $request->getHeader(static::HEADER_TTL);
            $ttl = (int)reset($ttlHeaderValues);
        }

return new CacheEntry($request->withoutHeader(static::HEADER_TTL), $response, new \DateTime(sprintf('%+d seconds', $ttl)));
    }

public function fetch(RequestInterface $request)
    {
        $cache = $this->storage->fetch($this->getCacheKey($request, $this->varyHeaders));
        return $cache;
    }

/**
     * {@inheritdoc}
     */
    public function delete(RequestInterface $request)
    {
        return $this->storage->delete($this->getCacheKey($request));
    }
}

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 Delegate/	DIR	—	2026-02-11 01:44
📄 CacheStrategyInterface.php	PHP	997 B	2026-02-11 01:44	EDIT
📄 GreedyCacheStrategy.php	PHP	3.6 KB	2026-02-11 01:44	EDIT
📄 NullCacheStrategy.php	PHP	778 B	2026-02-11 01:44	EDIT
📄 PrivateCacheStrategy.php	PHP	7.3 KB	2026-02-11 01:44	EDIT
📄 PublicCacheStrategy.php	PHP	1.1 KB	2026-02-11 01:44	EDIT