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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the Packagist Mirror. |
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* |
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* For the full license information, please view the LICENSE.md |
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* file that was distributed with this source code. |
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*/ |
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namespace Webs\Mirror; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Pool; |
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use GuzzleHttp\Psr7\Request; |
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use stdClass; |
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use Exception; |
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use Generator; |
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use Closure; |
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/** |
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* Middleware to http operations. |
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* |
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* @author Webysther Nunes <[email protected]> |
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*/ |
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class Http |
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{ |
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use Gzip; |
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/** |
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* @var Client |
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*/ |
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protected $client; |
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/** |
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* @var Mirror |
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*/ |
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protected $mirror; |
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/** |
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* @var array |
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*/ |
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protected $poolErrors; |
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/** |
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* @var array |
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*/ |
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protected $poolErrorsCount = []; |
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/** |
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* @var array |
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*/ |
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protected $config = [ |
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'base_uri' => '', |
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'headers' => ['Accept-Encoding' => 'gzip'], |
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'decode_content' => false, |
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'timeout' => 30, |
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'connect_timeout' => 15, |
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]; |
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/** |
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* @var int |
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*/ |
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protected $maxConnections; |
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/** |
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* @var int |
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*/ |
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protected $connections; |
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/** |
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* @var bool |
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*/ |
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protected $usingMirrors = false; |
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/** |
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* @param Mirror $mirror |
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* @param int $maxConnections |
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*/ |
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1 |
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public function __construct(Mirror $mirror, int $maxConnections) |
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{ |
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// fixed when /something is passed is converted to / |
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// now we put a / as suffix and is resolved as /something/ |
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$this->config['base_uri'] = trim($mirror->getMaster(), '/').'/'; |
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$this->client = new Client($this->config); |
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$this->maxConnections = $maxConnections; |
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$this->mirror = $mirror; |
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} |
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/** |
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* @return string |
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*/ |
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public function getBaseUri():string |
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{ |
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return $this->config['base_uri']; |
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} |
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/** |
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* Client get with transparent gz decode. |
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* |
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* @see Client::get |
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*/ |
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public function getJson(string $uri):stdClass |
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{ |
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$response = $this->client->get($uri); |
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1 |
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// Maybe 4xx or 5xx |
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if ($response->getStatusCode() >= 400) { |
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throw new Exception("Error download $uri", 1); |
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1 |
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} |
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1 |
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$json = $this->decode((string) $response->getBody()); |
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$decoded = json_decode($json); |
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if (json_last_error() !== JSON_ERROR_NONE) { |
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throw new Exception("Response not a json: $json", 1); |
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1 |
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} |
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return $decoded; |
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} |
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/** |
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* Create a new get request. |
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* |
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* @param string $uri |
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* |
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* @return Request |
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*/ |
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public function getRequest(string $uri):Request |
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{ |
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$base = $this->getBaseUri(); |
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if ($this->usingMirrors) { |
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$base = $this->mirror->getNext(); |
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} |
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// when uri is doubled // is misleading interpreted |
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$request_uri = trim($base, '/').'/'.trim($uri, '/'); |
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// debug every uri: |
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// print($request_uri.PHP_EOL); |
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return new Request('GET', $request_uri); |
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} |
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/** |
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* @param Generator $requests |
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* @param Closure $success |
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* @param Closure $complete |
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* |
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* @return Http |
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*/ |
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public function pool(Generator $requests, Closure $success, Closure $complete):Http |
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{ |
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$this->connections = $this->maxConnections; |
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if ($this->usingMirrors) { |
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$mirrors = $this->mirror->getAll()->count(); |
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$this->connections = $this->maxConnections * $mirrors; |
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} |
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$fulfilled = function($response, $path) use ($success, $complete) { |
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$body = (string) $response->getBody(); |
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$success($body, $path); |
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$complete(); |
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}; |
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$rejected = function($reason, $path) use ($complete) { |
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$uri = $reason->getRequest()->getUri(); |
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$host = $uri->getScheme().'://'.$uri->getHost(); |
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$uri = (string) $uri; |
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$wordwrap = wordwrap($reason->getMessage()); |
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$message = current(explode("\n", $wordwrap)).'...'; |
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$this->poolErrors[$path] = [ |
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'code' => $reason->getCode(), |
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'host' => dirname($uri), |
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'message' => $message, |
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]; |
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if (!isset($this->poolErrorsCount[$host])) { |
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$this->poolErrorsCount[$host] = 0; |
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} |
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++$this->poolErrorsCount[$host]; |
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$complete(); |
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}; |
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$this->poolErrors = []; |
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$pool = new Pool( |
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$this->client, |
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$requests, |
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[ |
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'concurrency' => $this->connections, |
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'fulfilled' => $fulfilled, |
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'rejected' => $rejected, |
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] |
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); |
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$pool->promise()->wait(); |
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1 |
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// Reset to use only max connections for one mirror |
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$this->usingMirrors = false; |
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return $this; |
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} |
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/** |
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* @return Http |
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*/ |
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public function useMirrors():Http |
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{ |
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$this->usingMirrors = true; |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getPoolErrors():array |
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{ |
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return $this->poolErrors; |
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} |
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/** |
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* @param string $mirror |
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* |
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* @return int |
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*/ |
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public function getTotalErrorByMirror(string $mirror):int |
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{ |
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if (!isset($this->poolErrorsCount[$mirror])) { |
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return 0; |
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} |
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return $this->poolErrorsCount[$mirror]; |
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} |
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/** |
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* @return Mirror |
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*/ |
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public function getMirror():Mirror |
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{ |
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return $this->mirror; |
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} |
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} |
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Webysther /
packagist-mirror
