Fix parsing of remote URL when mounting remote shares

This fix allows for having the remote ownCloud instance live in a
subpath like "http://example.com/basedir/subdir/owncloud".
Such URLs are now parsed correctly.

Added unit test for URL parsing.

apps/files_sharing/lib/external/storage.php

@@ -37,9 +37,9 @@ class Storage extends DAV implements ISharedStorage {
 		$this->remote = $options['remote'];
 		$this->remoteUser = $options['owner'];
 		list($protocol, $remote) = explode('://', $this->remote);
-		list($host, $root) = explode('/', $remote);
+		list($host, $root) = explode('/', $remote, 2);
 		$secure = $protocol === 'https';
-		$root .= '/public.php/webdav';
+		$root = rtrim($root, '/') . '/public.php/webdav';
 		$this->mountPoint = $options['mountpoint'];
 		$this->token = $options['token'];
 		parent::__construct(array(

apps/files_sharing/tests/externalstorage.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * ownCloud
+ *
+ * @author Vincent Petry
+ * @copyright 2014 Vincent Petry <pvince81@owncloud.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+require_once __DIR__ . '/base.php';
+
+require_once __DIR__ . '/../../files_external/lib/webdav.php';
+
+/**
+ * Tests for the external Storage class for remote shares.
+ */
+class Test_Files_Sharing_External_Storage extends \PHPUnit_Framework_TestCase {
+
+	function optionsProvider() {
+		return array(
+			array(
+				'http://remoteserver:8080/owncloud',
+				'http://remoteserver:8080/owncloud/public.php/webdav/',
+			),
+			// extra slash
+			array(
+				'http://remoteserver:8080/owncloud/',
+				'http://remoteserver:8080/owncloud/public.php/webdav/',
+			),
+			// extra path
+			array(
+				'http://remoteserver:8080/myservices/owncloud/',
+				'http://remoteserver:8080/myservices/owncloud/public.php/webdav/',
+			),
+			// root path
+			array(
+				'http://remoteserver:8080/',
+				'http://remoteserver:8080/public.php/webdav/',
+			),
+			// without port
+			array(
+				'http://remoteserver/oc.test',
+				'http://remoteserver/oc.test/public.php/webdav/',
+			),
+			// https
+			array(
+				'https://remoteserver/',
+				'https://remoteserver/public.php/webdav/',
+			),
+		);
+	}
+
+	/**
+	 * @dataProvider optionsProvider
+	 */
+	public function testStorageMountOptions($inputUri, $baseUri) {
+		$storage = new TestSharingExternalStorage(
+			array(
+				'remote' => $inputUri,
+				'owner' => 'testOwner',
+				'mountpoint' => 'remoteshare',
+				'token' => 'abcdef',
+				'password' => '',
+			)
+		);
+		$this->assertEquals($baseUri, $storage->getBaseUri());
+	}
+}
+
+/**
+ * Dummy subclass to make it possible to access private members
+ */
+class TestSharingExternalStorage extends \OCA\Files_Sharing\External\Storage {
+
+	public function getBaseUri() {
+		return $this->createBaseUri();
+	}
+}