1 files changed, 67 insertions, 0 deletions
diff --git a/lib/private/App/AppStore/Fetcher/AppFetcher.php b/lib/private/App/AppStore/Fetcher/AppFetcher.php
index 19e61d416a0..32c207e3ac0 100644
--- a/lib/private/App/AppStore/Fetcher/AppFetcher.php
+++ b/lib/private/App/AppStore/Fetcher/AppFetcher.php
@@ -21,12 +21,16 @@
 
 namespace OC\App\AppStore\Fetcher;
 
+use OC\App\AppStore\Version\VersionParser;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\Files\IAppData;
 use OCP\Http\Client\IClientService;
 use OCP\IConfig;
 
 class AppFetcher extends Fetcher {
+	/** @var IConfig */
+	private $config;
+
 	/**
 	 * @param IAppData $appData
 	 * @param IClientService $clientService
@@ -44,6 +48,7 @@ class AppFetcher extends Fetcher {
 		);
 
 		$this->fileName = 'apps.json';
+		$this->config = $config;
 
 		$versionArray = \OC_Util::getVersion();
 		$this->endpointUrl = sprintf(
@@ -53,4 +58,66 @@ class AppFetcher extends Fetcher {
 			$versionArray[2]
 		);
 	}
+
+	/**
+	 * Only returns the latest compatible app release in the releases array
+	 *
+	 * @return array
+	 */
+	protected function fetch() {
+		$client = $this->clientService->newClient();
+		$response = $client->get($this->endpointUrl);
+		$responseJson = [];
+		$responseJson['data'] = json_decode($response->getBody(), true);
+		$responseJson['timestamp'] = $this->timeFactory->getTime();
+		$response = $responseJson;
+
+		$ncVersion = $this->config->getSystemValue('version');
+		$ncMajorVersion = explode('.', $ncVersion)[0];
+		foreach($response['data'] as $dataKey => $app) {
+			$releases = [];
+
+			// Filter all compatible releases
+			foreach($app['releases'] as $release) {
+				// Exclude all nightly releases
+				if($release['isNightly'] === false) {
+					// Exclude all versions not compatible with the current version
+					$versionParser = new VersionParser();
+					$version = $versionParser->getVersion($release['rawPlatformVersionSpec']);
+
+					if(
+						// Major version is bigger or equals to the minimum version of the app
+						version_compare($ncMajorVersion, $version->getMinimumVersion(), '>=')
+						// Major version is smaller or equals to the maximum version of the app
+						&& version_compare($ncMajorVersion, $version->getMaximumVersion(), '<=')) {
+						$releases[] = $release;
+					}
+				}
+			}
+
+			// Get the highest version
+			$versions = [];
+			foreach($releases as $release) {
+				$versions[] = $release['version'];
+			}
+			usort($versions, 'version_compare');
+			$versions = array_reverse($versions);
+			$compatible = false;
+			if(isset($versions[0])) {
+				$highestVersion = $versions[0];
+				foreach ($releases as $release) {
+					if ((string)$release['version'] === (string)$highestVersion) {
+						$compatible = true;
+						$response['data'][$dataKey]['releases'] = [$release];
+						break;
+					}
+				}
+			}
+			if(!$compatible) {
+				unset($response['data'][$dataKey]);
+			}
+		}
+
+		return $response;
+	}
 }