101 lines
2.3 KiB
PHP
101 lines
2.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2017 F7cloud GmbH and F7cloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Mail\Service\Avatar;
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use OCP\ICache;
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use OCP\ICacheFactory;
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class Cache {
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// Cache for one week
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public const CACHE_TTL = 7 * 24 * 60 * 60;
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/** @var ICache */
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private $cache;
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/** @var AvatarFactory */
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private $avatarFactory;
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public function __construct(ICacheFactory $cacheFactory, AvatarFactory $avatarFactory) {
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$this->cache = $cacheFactory->createLocal('mail.avatars');
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$this->avatarFactory = $avatarFactory;
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}
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/**
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* @param string $email
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* @param string $uid
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* @return string
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*/
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private function buildUrlKey(string $email, string $uid): string {
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return base64_encode(json_encode([$email, $uid]));
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}
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/**
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* @param string $url
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* @param string $uid
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* @return string
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*/
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private function buildImageKey(string $url, string $uid): string {
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return base64_encode(json_encode([$url, $uid]));
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}
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/**
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* @param string $email
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* @param string $uid
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* @return Avatar|null|false the avatar if cached, false if cached but no value and null if not cached
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*/
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public function get(string $email, string $uid) {
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$cached = $this->cache->get($this->buildUrlKey($email, $uid));
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if (is_null($cached)) {
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return null;
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}
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if ($cached === false) {
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return false;
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}
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if ($cached['isExternal']) {
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return $this->avatarFactory->createExternal($cached['url'], $cached['mime']);
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}
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return $this->avatarFactory->createInternal($cached['url']);
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}
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/**
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* @param string $email
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* @param string $uid
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* @param Avatar|null $avatar
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*
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* @return void
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*/
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public function add(string $email, string $uid, ?Avatar $avatar): void {
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$this->cache->set($this->buildUrlKey($email, $uid), $avatar === null ? false : $avatar->jsonSerialize(), self::CACHE_TTL);
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}
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/**
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* @param string $url
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* @param string $uid
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* @return string|null cached image data
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*/
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public function getImage(string $url, string $uid) {
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return $this->cache->get($this->buildImageKey($url, $uid));
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}
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/**
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* @param string $url
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* @param string $uid
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* @param string $image base64 encoded image data
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*
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* @return void
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*/
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public function addImage(string $url, string $uid, string $image): void {
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$this->cache->set($this->buildImageKey($url, $uid), $image, self::CACHE_TTL);
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}
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}
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