function ComposerRepository::fetchFileIfLastModified

Return value

array<mixed>|true

2 calls to ComposerRepository::fetchFileIfLastModified()

ComposerRepository::loadRootServerFile in vendor/composer/composer/src/Composer/Repository/ComposerRepository.php

ComposerRepository::whatProvides in vendor/composer/composer/src/Composer/Repository/ComposerRepository.php

@phpstan-param array<key-of<BasePackage::STABILITIES>, BasePackage::STABILITY_*>|null $acceptableStabilities

File

vendor/composer/composer/src/Composer/Repository/ComposerRepository.php, line 1564

Class

ComposerRepository

@author Jordi Boggiano <j.boggiano@seld.be>

Namespace

Composer\Repository

Code

private function fetchFileIfLastModified(string $filename, string $cacheKey, string $lastModifiedTime) {
    if ('' === $filename) {
        throw new \InvalidArgumentException('$filename should not be an empty string');
    }
    try {
        $options = $this->options;
        if ($this->eventDispatcher) {
            $preFileDownloadEvent = new PreFileDownloadEvent(PluginEvents::PRE_FILE_DOWNLOAD, $this->httpDownloader, $filename, 'metadata', [
                'repository' => $this,
            ]);
            $preFileDownloadEvent->setTransportOptions($this->options);
            $this->eventDispatcher
                ->dispatch($preFileDownloadEvent->getName(), $preFileDownloadEvent);
            $filename = $preFileDownloadEvent->getProcessedUrl();
            $options = $preFileDownloadEvent->getTransportOptions();
        }
        if (isset($options['http']['header'])) {
            $options['http']['header'] = (array) $options['http']['header'];
        }
        $options['http']['header'][] = 'If-Modified-Since: ' . $lastModifiedTime;
        $response = $this->httpDownloader
            ->get($filename, $options);
        $json = (string) $response->getBody();
        if ($json === '' && $response->getStatusCode() === 304) {
            return true;
        }
        if ($this->eventDispatcher) {
            $postFileDownloadEvent = new PostFileDownloadEvent(PluginEvents::POST_FILE_DOWNLOAD, null, null, $filename, 'metadata', [
                'response' => $response,
                'repository' => $this,
            ]);
            $this->eventDispatcher
                ->dispatch($postFileDownloadEvent->getName(), $postFileDownloadEvent);
        }
        $data = $response->decodeJson();
        HttpDownloader::outputWarnings($this->io, $this->url, $data);
        $lastModifiedDate = $response->getHeader('last-modified');
        $response->collect();
        if ($lastModifiedDate) {
            $data['last-modified'] = $lastModifiedDate;
            $json = JsonFile::encode($data, 0);
        }
        if (!$this->cache
            ->isReadOnly()) {
            $this->cache
                ->write($cacheKey, $json);
        }
        return $data;
    } catch (\Exception $e) {
        if ($e instanceof \LogicException) {
            throw $e;
        }
        if ($e instanceof TransportException && $e->getStatusCode() === 404) {
            throw $e;
        }
        if (!$this->degradedMode) {
            $this->io
                ->writeError('<warning>' . $this->url . ' could not be fully loaded (' . $e->getMessage() . '), package information was loaded from the local cache and may be out of date</warning>');
        }
        $this->degradedMode = true;
        return true;
    }
}