extend storage api to allow directly writing a stream to storage

this removes the need for temporary storages with some external storage backends.
The new method is added to a separate interface to maintain compatibility with
storage backends implementing the storage interface directly (without inheriting common)

Currently the interface is implemented for objectstorage based storages and local storage
and used by webdav uploads

Signed-off-by: Robin Appelman <robin@icewind.nl>

1 files changed, 49 insertions, 0 deletions

diff --git a/tests/lib/Files/Stream/CountReadStreamTest.php b/tests/lib/Files/Stream/CountReadStreamTest.php
new file mode 100644
index 00000000000..99291d1644f
--- /dev/null
+++ b/tests/lib/Files/Stream/CountReadStreamTest.php
@@ -0,0 +1,49 @@
+<?php declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Test\Files\Stream;
+
+use OC\Files\Stream\CountReadStream;
+use Test\TestCase;
+
+class CountReadStreamTest extends TestCase {
+	private function getStream($data) {
+		$handle = fopen('php://temp', 'w+');
+		fwrite($handle, $data);
+		rewind($handle);
+		return $handle;
+	}
+
+	public function testBasicCount() {
+		$source = $this->getStream('foo');
+		$stream = CountReadStream::wrap($source, function ($size) {
+			$this->assertEquals(3, $size);
+		});
+		stream_get_contents($stream);
+	}
+
+	public function testLarger() {
+		$stream = CountReadStream::wrap(fopen(__DIR__ . '/../../../data/testimage.mp4', 'r'), function ($size) {
+			$this->assertEquals(383631, $size);
+		});
+		stream_get_contents($stream);
+	}
+}