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Editing: AppDiscoverFetcher.php

<?php

/**
 * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OC\App\AppStore\Fetcher;

use DateTimeImmutable;
use OC\App\CompareVersion;
use OC\Files\AppData\Factory;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\Support\Subscription\IRegistry;
use Psr\Log\LoggerInterface;

class AppDiscoverFetcher extends Fetcher {

public const INVALIDATE_AFTER_SECONDS = 86400;

public function __construct(
		Factory $appDataFactory,
		IClientService $clientService,
		ITimeFactory $timeFactory,
		IConfig $config,
		LoggerInterface $logger,
		IRegistry $registry,
		private CompareVersion $compareVersion,
	) {
		parent::__construct(
			$appDataFactory,
			$clientService,
			$timeFactory,
			$config,
			$logger,
			$registry
		);

$this->fileName = 'discover.json';
		$this->endpointName = 'discover.json';
	}

/**
	 * Get the app discover section entries
	 *
	 * @param bool $allowUnstable Include also upcoming entries
	 */
	public function get($allowUnstable = false) {
		$entries = parent::get(false);
		$now = new DateTimeImmutable();

return array_filter($entries, function (array $entry) use ($now, $allowUnstable) {
			// Always remove expired entries
			if (isset($entry['expiryDate'])) {
				try {
					$expiryDate = new DateTimeImmutable($entry['expiryDate']);
					if ($expiryDate < $now) {
						return false;
					}
				} catch (\Throwable $e) {
					// Invalid expiryDate format
					return false;
				}
			}

// If not include upcoming entries, check for upcoming dates and remove those entries
			if (!$allowUnstable && isset($entry['date'])) {
				try {
					$date = new DateTimeImmutable($entry['date']);
					if ($date > $now) {
						return false;
					}
				} catch (\Throwable $e) {
					// Invalid date format
					return false;
				}
			}
			// Otherwise the entry is not time limited and should stay
			return true;
		});
	}

public function getETag(): ?string {
		$rootFolder = $this->appData->getFolder('/');

try {
			$file = $rootFolder->getFile($this->fileName);
			$jsonBlob = json_decode($file->getContent(), true);

if (is_array($jsonBlob) && isset($jsonBlob['ETag'])) {
				return (string)$jsonBlob['ETag'];
			}
		} catch (\Throwable $e) {
			// ignore
		}
		return null;
	}
}

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