0byt3m1n1
Path:
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home
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mgatv524
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mctv.mgaplay.com.br
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lib
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Helper
/
[
Home
]
File: HttpCacheProvider.php
<?php /** * Copyright (c) 2012-2015 Josh Lockhart */ namespace Xibo\Helper; use InvalidArgumentException; use Psr\Http\Message\ResponseInterface; class HttpCacheProvider { /** * Enable client-side HTTP caching * * @param ResponseInterface $response PSR7 response object * @param string $type Cache-Control type: "private" or "public" * @param null|int|string $maxAge Maximum cache age (integer timestamp or datetime string) * @param bool $mustRevalidate add option "must-revalidate" to Cache-Control * * @return ResponseInterface A new PSR7 response object with `Cache-Control` header * @throws InvalidArgumentException if the cache-control type is invalid */ public function allowCache(ResponseInterface $response, $type = 'private', $maxAge = null, $mustRevalidate = false) { if (!in_array($type, ['private', 'public'])) { throw new InvalidArgumentException('Invalid Cache-Control type. Must be "public" or "private".'); } $headerValue = $type; if ($maxAge || is_integer($maxAge)) { if (!is_integer($maxAge)) { $maxAge = strtotime($maxAge); } $headerValue = $headerValue . ', max-age=' . $maxAge; } if ($mustRevalidate) { $headerValue = $headerValue . ", must-revalidate"; } return $response->withHeader('Cache-Control', $headerValue); } /** * Disable client-side HTTP caching * * @param ResponseInterface $response PSR7 response object * * @return ResponseInterface A new PSR7 response object with `Cache-Control` header */ public function denyCache(ResponseInterface $response) { return $response->withHeader('Cache-Control', 'no-store,no-cache'); } /** * Add `Expires` header to PSR7 response object * * @param ResponseInterface $response A PSR7 response object * @param int|string $time A UNIX timestamp or a valid `strtotime()` string * * @return ResponseInterface A new PSR7 response object with `Expires` header * @throws InvalidArgumentException if the expiration date cannot be parsed */ public function withExpires(ResponseInterface $response, $time) { if (!is_integer($time)) { $time = strtotime($time); if ($time === false) { throw new InvalidArgumentException('Expiration value could not be parsed with `strtotime()`.'); } } return $response->withHeader('Expires', gmdate('D, d M Y H:i:s T', $time)); } /** * Add `ETag` header to PSR7 response object * * @param ResponseInterface $response A PSR7 response object * @param string $value The ETag value * @param string $type ETag type: "strong" or "weak" * * @return ResponseInterface A new PSR7 response object with `ETag` header * @throws InvalidArgumentException if the etag type is invalid */ public function withEtag(ResponseInterface $response, $value, $type = 'strong') { if (!in_array($type, ['strong', 'weak'])) { throw new InvalidArgumentException('Invalid etag type. Must be "strong" or "weak".'); } $value = '"' . $value . '"'; if ($type === 'weak') { $value = 'W/' . $value; } return $response->withHeader('ETag', $value); } /** * Add `Last-Modified` header to PSR7 response object * * @param ResponseInterface $response A PSR7 response object * @param int|string $time A UNIX timestamp or a valid `strtotime()` string * * @return ResponseInterface A new PSR7 response object with `Last-Modified` header * @throws InvalidArgumentException if the last modified date cannot be parsed */ public function withLastModified(ResponseInterface $response, $time) { if (!is_integer($time)) { $time = strtotime($time); if ($time === false) { throw new InvalidArgumentException('Last Modified value could not be parsed with `strtotime()`.'); } } return $response->withHeader('Last-Modified', gmdate('D, d M Y H:i:s T', $time)); } }