mirror of https://github.com/nextcloud/server
Merge pull request #33566 from nextcloud/fopen-not-found-rescan
trigger a rescan when trying to fopen a file that exists in cache but not on disk
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commit
ca958de7e9
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@ -1151,7 +1151,7 @@ class FileTest extends TestCase {
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$info = new \OC\Files\FileInfo('/test.txt', $this->getMockStorage(), null, [
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'permissions' => \OCP\Constants::PERMISSION_ALL,
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'type' => FileInfo::TYPE_FOLDER,
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'type' => FileInfo::TYPE_FILE,
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], null);
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$file = new \OCA\DAV\Connector\Sabre\File($view, $info);
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@ -1172,7 +1172,7 @@ class FileTest extends TestCase {
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$info = new \OC\Files\FileInfo('/test.txt', $this->getMockStorage(), null, [
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'permissions' => \OCP\Constants::PERMISSION_ALL,
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'type' => FileInfo::TYPE_FOLDER,
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'type' => FileInfo::TYPE_FILE,
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], null);
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$file = new \OCA\DAV\Connector\Sabre\File($view, $info);
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@ -166,6 +166,9 @@ class Local extends \OC\Files\Storage\Common {
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public function stat($path) {
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$fullPath = $this->getSourcePath($path);
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clearstatcache(true, $fullPath);
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if (!file_exists($fullPath)) {
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return false;
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}
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$statResult = @stat($fullPath);
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if (PHP_INT_SIZE === 4 && $statResult && !$this->is_dir($path)) {
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$filesize = $this->filesize($path);
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@ -388,11 +391,15 @@ class Local extends \OC\Files\Storage\Common {
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}
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public function fopen($path, $mode) {
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$sourcePath = $this->getSourcePath($path);
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if (!file_exists($sourcePath) && $mode === 'r') {
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return false;
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}
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$oldMask = umask($this->defUMask);
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if (($mode === 'w' || $mode === 'w+') && $this->unlinkOnTruncate) {
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$this->unlink($path);
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}
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$result = fopen($this->getSourcePath($path), $mode);
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$result = @fopen($sourcePath, $mode);
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umask($oldMask);
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return $result;
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}
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@ -1003,7 +1003,17 @@ class View {
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$this->logger->info('Trying to open a file with a mode other than "r" or "w" can cause severe performance issues with some backends', ['app' => 'core']);
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}
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return $this->basicOperation('fopen', $path, $hooks, $mode);
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$handle = $this->basicOperation('fopen', $path, $hooks, $mode);
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if (!is_resource($handle) && $mode === 'r') {
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// trying to read a file that isn't on disk, check if the cache is out of sync and rescan if needed
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$mount = $this->getMount($path);
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$internalPath = $mount->getInternalPath($this->getAbsolutePath($path));
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$storage = $mount->getStorage();
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if ($storage->getCache()->inCache($internalPath) && !$storage->file_exists($path)) {
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$this->writeUpdate($storage, $internalPath);
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}
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}
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return $handle;
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}
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/**
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@ -2709,4 +2709,23 @@ class ViewTest extends \Test\TestCase {
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$this->assertEquals(25, $info->getUploadTime());
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$this->assertEquals(0, $info->getCreationTime());
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}
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public function testFopenGone() {
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$storage = new Temporary([]);
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$scanner = $storage->getScanner();
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$storage->file_put_contents('foo.txt', 'bar');
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$scanner->scan('');
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$cache = $storage->getCache();
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Filesystem::mount($storage, [], '/test/');
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$view = new View('/test');
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$storage->unlink('foo.txt');
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$this->assertTrue($cache->inCache('foo.txt'));
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$this->assertFalse($view->fopen('foo.txt', 'r'));
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$this->assertFalse($cache->inCache('foo.txt'));
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}
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}
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