Store storage availability in database

Storage status is saved in the database. Failed storages are rechecked every
10 minutes, while working storages are rechecked every request.

Using the files_external app will recheck all external storages when the
settings page is viewed, or whenever an external storage is saved.

1 files changed, 149 insertions, 0 deletions

diff --git a/tests/lib/files/storage/wrapper/availability.php b/tests/lib/files/storage/wrapper/availability.php
new file mode 100644
index 00000000000..9b394df8ca3
--- /dev/null
+++ b/tests/lib/files/storage/wrapper/availability.php
@@ -0,0 +1,149 @@
+<?php
+/**
+ * @author Robin McCorkell <rmccorkell@karoshi.org.uk>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @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/>
+ *
+ */
+namespace Test\Files\Storage\Wrapper;
+
+class Availability extends \Test\TestCase {
+	protected function getWrapperInstance() {
+		$storage = $this->getMockBuilder('\OC\Files\Storage\Temporary')
+			->disableOriginalConstructor()
+			->getMock();
+		$wrapper = new \OC\Files\Storage\Wrapper\Availability(['storage' => $storage]);
+		return [$storage, $wrapper];
+	}
+
+	/**
+	 * Storage is available
+	 */
+	public function testAvailable() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => true, 'last_checked' => 0]);
+		$storage->expects($this->never())
+			->method('test');
+		$storage->expects($this->once())
+			->method('mkdir');
+
+		$wrapper->mkdir('foobar');
+	}
+
+	/**
+	 * Storage marked unavailable, TTL not expired
+	 *
+	 * @expectedException \OCP\Files\StorageNotAvailableException
+	 */
+	public function testUnavailable() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => false, 'last_checked' => time()]);
+		$storage->expects($this->never())
+			->method('test');
+		$storage->expects($this->never())
+			->method('mkdir');
+
+		$wrapper->mkdir('foobar');
+	}
+
+	/**
+	 * Storage marked unavailable, TTL expired
+	 */
+	public function testUnavailableRecheck() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => false, 'last_checked' => 0]);
+		$storage->expects($this->once())
+			->method('test')
+			->willReturn(true);
+		$storage->expects($this->once())
+			->method('setAvailability')
+			->with($this->equalTo(true));
+		$storage->expects($this->once())
+			->method('mkdir');
+
+		$wrapper->mkdir('foobar');
+	}
+
+	/**
+	 * Storage marked available, but throws StorageNotAvailableException
+	 *
+	 * @expectedException \OCP\Files\StorageNotAvailableException
+	 */
+	public function testAvailableThrowStorageNotAvailable() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => true, 'last_checked' => 0]);
+		$storage->expects($this->never())
+			->method('test');
+		$storage->expects($this->once())
+			->method('mkdir')
+			->will($this->throwException(new \OCP\Files\StorageNotAvailableException()));
+		$storage->expects($this->once())
+			->method('setAvailability')
+			->with($this->equalTo(false));
+
+		$wrapper->mkdir('foobar');
+	}
+
+	/**
+	 * Storage available, but call fails
+	 * Method failure does not indicate storage unavailability
+	 */
+	public function testAvailableFailure() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => true, 'last_checked' => 0]);
+		$storage->expects($this->never())
+			->method('test');
+		$storage->expects($this->once())
+			->method('mkdir')
+			->willReturn(false);
+		$storage->expects($this->never())
+			->method('setAvailability');
+
+		$wrapper->mkdir('foobar');
+	}
+
+	/**
+	 * Storage available, but throws exception
+	 * Standard exception does not indicate storage unavailability
+	 *
+	 * @expectedException \Exception
+	 */
+	public function testAvailableThrow() {
+		list($storage, $wrapper) = $this->getWrapperInstance();
+		$storage->expects($this->once())
+			->method('getAvailability')
+			->willReturn(['available' => true, 'last_checked' => 0]);
+		$storage->expects($this->never())
+			->method('test');
+		$storage->expects($this->once())
+			->method('mkdir')
+			->will($this->throwException(new \Exception()));
+		$storage->expects($this->never())
+			->method('setAvailability');
+
+		$wrapper->mkdir('foobar');
+	}
+}