fix(appstore): Cache apps.json also on dev instances

Signed-off-by: Marcel Müller <marcel-mueller@gmx.de>

lib/private/App/AppStore/Fetcher/Fetcher.php

@@ -43,6 +43,7 @@
 
 abstract class Fetcher {
 	public const INVALIDATE_AFTER_SECONDS = 3600;
+	public const INVALIDATE_AFTER_SECONDS_UNSTABLE = 900;
 	public const RETRY_AFTER_FAILURE_SECONDS = 300;
 	public const APP_STORE_URL = 'https://apps.nextcloud.com/api/v1';
 
@@ -170,12 +171,17 @@ public function get($allowUnstable = false) {
 			$file = $rootFolder->getFile($this->fileName);
 			$jsonBlob = json_decode($file->getContent(), true);
 
-			// Always get latests apps info if $allowUnstable
-			if (!$allowUnstable && is_array($jsonBlob)) {
+			if (is_array($jsonBlob)) {
 				// No caching when the version has been updated
 				if (isset($jsonBlob['ncversion']) && $jsonBlob['ncversion'] === $this->getVersion()) {
 					// If the timestamp is older than 3600 seconds request the files new
-					if ((int)$jsonBlob['timestamp'] > ($this->timeFactory->getTime() - self::INVALIDATE_AFTER_SECONDS)) {
+					$invalidateAfterSeconds = self::INVALIDATE_AFTER_SECONDS;
+
+					if ($allowUnstable) {
+						$invalidateAfterSeconds = self::INVALIDATE_AFTER_SECONDS_UNSTABLE;
+					}
+
+					if ((int)$jsonBlob['timestamp'] > ($this->timeFactory->getTime() - $invalidateAfterSeconds)) {
 						return $jsonBlob['data'];
 					}
 
@@ -198,11 +204,6 @@ public function get($allowUnstable = false) {
 				return [];
 			}
 
-			// Don't store the apps request file
-			if ($allowUnstable) {
-				return $responseJson['data'];
-			}
-
 			$file->putContent(json_encode($responseJson));
 			return json_decode($file->getContent(), true)['data'];
 		} catch (ConnectException $e) {