Do not set up filesystem on every call

Also remove old Oc_FileChunking logis that produced GC- collectable chunks

Signed-off-by: Anna Larch <anna@nextcloud.com>

6 files changed, 18 insertions, 210 deletions

diff --git a/lib/base.php b/lib/base.php
index b5c5845b5a0..452d6ecc05d 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -855,23 +855,6 @@ class OC {
 					$throttler = Server::get(\OC\Security\Bruteforce\Throttler::class);
 					$throttler->resetDelay($request->getRemoteAddress(), 'login', ['user' => $uid]);
 				}
-
-				try {
-					$cache = new \OC\Cache\File();
-					$cache->gc();
-				} catch (\OC\ServerNotAvailableException $e) {
-					// not a GC exception, pass it on
-					throw $e;
-				} catch (\OC\ForbiddenException $e) {
-					// filesystem blocked for this request, ignore
-				} catch (\Exception $e) {
-					// a GC exception should not prevent users from using OC,
-					// so log the exception
-					Server::get(LoggerInterface::class)->warning('Exception when running cache gc.', [
-						'app' => 'core',
-						'exception' => $e,
-					]);
-				}
 			});
 		}
 	}
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 62f66dca67b..8a32b3bd262 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -1620,7 +1620,6 @@ return array(
     'OC_App' => $baseDir . '/lib/private/legacy/OC_App.php',
     'OC_Defaults' => $baseDir . '/lib/private/legacy/OC_Defaults.php',
     'OC_EventSource' => $baseDir . '/lib/private/legacy/OC_EventSource.php',
-    'OC_FileChunking' => $baseDir . '/lib/private/legacy/OC_FileChunking.php',
     'OC_Files' => $baseDir . '/lib/private/legacy/OC_Files.php',
     'OC_Helper' => $baseDir . '/lib/private/legacy/OC_Helper.php',
     'OC_Hook' => $baseDir . '/lib/private/legacy/OC_Hook.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 33d63a26e3e..09a4c92a08f 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -1653,7 +1653,6 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC_App' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_App.php',
         'OC_Defaults' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_Defaults.php',
         'OC_EventSource' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_EventSource.php',
-        'OC_FileChunking' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_FileChunking.php',
         'OC_Files' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_Files.php',
         'OC_Helper' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_Helper.php',
         'OC_Hook' => __DIR__ . '/../../..' . '/lib/private/legacy/OC_Hook.php',
diff --git a/lib/private/Cache/File.php b/lib/private/Cache/File.php
index 1f63e462bb5..56200bda6fa 100644
--- a/lib/private/Cache/File.php
+++ b/lib/private/Cache/File.php
@@ -35,11 +35,27 @@ use OCP\ICache;
 use OCP\Security\ISecureRandom;
 use Psr\Log\LoggerInterface;
 
+/**
+ * @deprecated 26.0.0
+ */
 class File implements ICache {
 	/** @var View */
 	protected $storage;
 
 	/**
+	 * Set the cache storage for a user
+	 */
+	public function setUpStorage(string $userId) {
+		Filesystem::initMountPoints($userId);
+		$rootView = new View();
+		if (!$rootView->file_exists('/' . $userId . '/cache')) {
+			$rootView->mkdir('/' . $userId . '/cache');
+		}
+		$this->storage = new View('/' . $userId . '/cache');
+		return $this->storage;
+	}
+
+	/**
 	 * Returns the cache storage for the logged in user
 	 *
 	 * @return \OC\Files\View cache storage
@@ -51,14 +67,8 @@ class File implements ICache {
 			return $this->storage;
 		}
 		if (\OC::$server->getUserSession()->isLoggedIn()) {
-			$rootView = new View();
 			$user = \OC::$server->getUserSession()->getUser();
-			Filesystem::initMountPoints($user->getUID());
-			if (!$rootView->file_exists('/' . $user->getUID() . '/cache')) {
-				$rootView->mkdir('/' . $user->getUID() . '/cache');
-			}
-			$this->storage = new View('/' . $user->getUID() . '/cache');
-			return $this->storage;
+			return $this->setUpStorage($user->getUID());
 		} else {
 			\OC::$server->get(LoggerInterface::class)->error('Can\'t get cache storage, user not logged in', ['app' => 'core']);
 			throw new \OC\ForbiddenException('Can\t get cache storage, user not logged in');
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 35f63686457..6ef805a4d85 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -708,6 +708,7 @@ class Server extends ServerContainer implements IServerContainer {
 		$this->registerService(ICache::class, function ($c) {
 			return new Cache\File();
 		});
+
 		/** @deprecated 19.0.0 */
 		$this->registerDeprecatedAlias('UserCache', ICache::class);
 
diff --git a/lib/private/legacy/OC_FileChunking.php b/lib/private/legacy/OC_FileChunking.php
deleted file mode 100644
index e3782cabb4a..00000000000
--- a/lib/private/legacy/OC_FileChunking.php
+++ /dev/null
@@ -1,184 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Felix Moeller <mail@felixmoeller.de>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Thomas Tanghus <thomas@tanghus.net>
- * @author Vincent Petry <vincent@nextcloud.com>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-class OC_FileChunking {
-	protected $info;
-	protected $cache;
-
-	/**
-	 * TTL of chunks
-	 *
-	 * @var int
-	 */
-	protected $ttl;
-
-	public static function decodeName($name) {
-		preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
-		return $matches;
-	}
-
-	/**
-	 * @param string[] $info
-	 */
-	public function __construct($info) {
-		$this->info = $info;
-		$this->ttl = \OC::$server->getConfig()->getSystemValue('cache_chunk_gc_ttl', 86400);
-	}
-
-	public function getPrefix() {
-		$name = $this->info['name'];
-		$transferid = $this->info['transferid'];
-
-		return $name.'-chunking-'.$transferid.'-';
-	}
-
-	protected function getCache() {
-		if (!isset($this->cache)) {
-			$this->cache = new \OC\Cache\File();
-		}
-		return $this->cache;
-	}
-
-	/**
-	 * Stores the given $data under the given $key - the number of stored bytes is returned
-	 *
-	 * @param string $index
-	 * @param resource $data
-	 * @return int
-	 */
-	public function store($index, $data) {
-		$cache = $this->getCache();
-		$name = $this->getPrefix().$index;
-		$cache->set($name, $data, $this->ttl);
-
-		return $cache->size($name);
-	}
-
-	public function isComplete() {
-		$prefix = $this->getPrefix();
-		$cache = $this->getCache();
-		$chunkcount = (int)$this->info['chunkcount'];
-
-		for ($i = ($chunkcount - 1); $i >= 0; $i--) {
-			if (!$cache->hasKey($prefix.$i)) {
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Assembles the chunks into the file specified by the path.
-	 * Chunks are deleted afterwards.
-	 *
-	 * @param resource $f target path
-	 *
-	 * @return integer assembled file size
-	 *
-	 * @throws \OC\InsufficientStorageException when file could not be fully
-	 * assembled due to lack of free space
-	 */
-	public function assemble($f) {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$count = 0;
-		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
-			$chunk = $cache->get($prefix.$i);
-			// remove after reading to directly save space
-			$cache->remove($prefix.$i);
-			$count += fwrite($f, $chunk);
-			// let php release the memory to work around memory exhausted error with php 5.6
-			$chunk = null;
-		}
-
-		return $count;
-	}
-
-	/**
-	 * Returns the size of the chunks already present
-	 * @return integer size in bytes
-	 */
-	public function getCurrentSize() {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$total = 0;
-		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
-			$total += $cache->size($prefix.$i);
-		}
-		return $total;
-	}
-
-	/**
-	 * Removes all chunks which belong to this transmission
-	 */
-	public function cleanup() {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		for ($i = 0; $i < $this->info['chunkcount']; $i++) {
-			$cache->remove($prefix.$i);
-		}
-	}
-
-	/**
-	 * Removes one specific chunk
-	 * @param string $index
-	 */
-	public function remove($index) {
-		$cache = $this->getCache();
-		$prefix = $this->getPrefix();
-		$cache->remove($prefix.$index);
-	}
-
-	/**
-	 * Assembles the chunks into the file specified by the path.
-	 * Also triggers the relevant hooks and proxies.
-	 *
-	 * @param \OC\Files\Storage\Storage $storage storage
-	 * @param string $path target path relative to the storage
-	 * @return bool true on success or false if file could not be created
-	 *
-	 * @throws \OC\ServerNotAvailableException
-	 */
-	public function file_assemble($storage, $path) {
-		// use file_put_contents as method because that best matches what this function does
-		if (\OC\Files\Filesystem::isValidPath($path)) {
-			$target = $storage->fopen($path, 'w');
-			if ($target) {
-				$count = $this->assemble($target);
-				fclose($target);
-				return $count > 0;
-			} else {
-				return false;
-			}
-		}
-		return false;
-	}
-}