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59 lines
1.3 KiB
59 lines
1.3 KiB
<?php
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/* For license terms, see /license.txt */
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use Packback\Lti1p3\Interfaces\Cache as Lti1p3Cache;
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class Lti13Cache implements Lti1p3Cache
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{
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public const NONCE_PREFIX = 'nonce_';
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private $cache;
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public function getLaunchData($key)
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{
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$this->loadCache();
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return $this->cache[$key];
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}
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public function cacheLaunchData($key, $jwtBody): Lti13Cache
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{
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$this->cache[$key] = $jwtBody;
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$this->saveCache();
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return $this;
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}
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public function cacheNonce($nonce): Lti13Cache
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{
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$this->cache['nonce'][$nonce] = true;
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$this->saveCache();
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return $this;
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}
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public function checkNonce($nonce): bool
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{
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$this->loadCache();
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if (!isset($this->cache['nonce'][$nonce])) {
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return false;
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}
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return true;
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}
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private function loadCache()
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{
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$cache = file_get_contents(api_get_path(SYS_ARCHIVE_PATH).'lti_cache.txt');
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if (empty($cache)) {
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file_put_contents(api_get_path(SYS_ARCHIVE_PATH).'lti_cache.txt', '{}');
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$this->cache = [];
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}
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$this->cache = json_decode($cache, true);
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}
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private function saveCache()
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{
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file_put_contents(api_get_path(SYS_ARCHIVE_PATH).'lti_cache.txt', json_encode($this->cache));
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}
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}
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