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<?php |
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namespace Freyo\Flysystem\QcloudCOSv5\Plugins; |
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use League\Flysystem\Plugin\AbstractPlugin; |
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class CDN extends AbstractPlugin |
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{ |
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/** |
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* Get the method name. |
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* |
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* @return string |
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*/ |
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public function getMethod() |
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{ |
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return 'cdn'; |
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} |
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/** |
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* @return $this |
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*/ |
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public function handle() |
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{ |
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return $this; |
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} |
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/** |
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* @param string $url |
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* @param string $key |
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* @param int $timestamp |
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* |
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* @return string |
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*/ |
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public function signature($url, $key, $timestamp = null) |
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{ |
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$timestamp = dechex($timestamp ?: time()); |
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$parsed = parse_url($url); |
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$signature = md5($key . $parsed['path'] . $timestamp); |
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$query = http_build_query(['sign' => $signature, 't' => $timestamp]); |
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$separator = empty($parsed['query']) ? '?' : '&'; |
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return $url . $separator . $query; |
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} |
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/** |
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* @param $url |
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* |
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* @return bool |
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*/ |
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public function refreshUrl($url) |
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{ |
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$urls = is_array($url) ? $url : func_get_args(); |
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return $this->request($urls, 'urls', 'RefreshCdnUrl'); |
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} |
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/** |
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* @param $dir |
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* |
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* @return bool |
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*/ |
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public function refreshDir($dir) |
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{ |
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$dirs = is_array($dir) ? $dir : func_get_args(); |
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return $this->request($dirs, 'dirs', 'RefreshCdnDir'); |
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} |
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/** |
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* @param array $args |
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* @param string $key |
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* @param string $action |
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* |
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* @return bool |
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*/ |
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protected function request(array $args, $key, $action) |
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{ |
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$client = $this->getHttpClient(); |
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$response = $client->post('/v2/index.php', [ |
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'form_params' => $this->buildFormParams($args, $key, $action), |
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]); |
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$contents = $response->getBody()->getContents(); |
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return $this->normalize($contents); |
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} |
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/** |
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* @return \GuzzleHttp\Client |
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*/ |
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protected function getHttpClient() |
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{ |
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return new \GuzzleHttp\Client([ |
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'verify' => false, |
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'base_uri' => 'https://cdn.api.qcloud.com', |
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]); |
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} |
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/** |
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* @param array $values |
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* @param string $key |
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* @param string $action |
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* |
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* @return array |
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*/ |
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protected function buildFormParams(array $values, $key, $action) |
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{ |
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$keys = array_map(function ($n) use ($key) { |
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return sprintf("$key.%d", $n); |
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}, range(0, count($values) - 1)); |
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$params = array_combine($keys, $values); |
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$params = $this->addCommonParams($params, $action); |
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return $this->addSignature($params); |
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} |
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/** |
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* @param array $params |
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* @param string $action |
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* |
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* @return array |
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*/ |
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protected function addCommonParams(array $params, $action) |
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{ |
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return array_merge([ |
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'Action' => $action, |
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'SecretId' => $this->getCredentials()['secretId'], |
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'Timestamp' => time(), |
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'Nonce' => rand(1, 65535), |
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], $params); |
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} |
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/** |
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* @return array |
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*/ |
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protected function getCredentials() |
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{ |
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return $this->filesystem->getConfig()->get('credentials'); |
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} |
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/** |
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* @param array $params |
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* |
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* @return array |
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*/ |
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protected function addSignature(array $params) |
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{ |
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$params['Signature'] = $this->getSignature($params); |
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return $params; |
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} |
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/** |
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* @param array $params |
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* |
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* @return string |
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*/ |
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protected function getSignature(array $params) |
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{ |
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ksort($params); |
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$srcStr = 'POSTcdn.api.qcloud.com/v2/index.php?' . urldecode(http_build_query($params)); |
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return base64_encode(hash_hmac('sha1', $srcStr, $this->getCredentials()['secretKey'], true)); |
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} |
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/** |
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* @param string $contents |
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* |
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* @return bool |
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*/ |
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protected function normalize($contents) |
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{ |
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$json = json_decode($contents); |
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if (json_last_error() !== JSON_ERROR_NONE) { |
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return false; |
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} |
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return 0 === $json->code; |
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} |
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} |
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freyo /
flysystem-qcloud-cos-v5
