FileAPI: Move FileSystemQuotaUtil related functions into SandboxContext

webkit/browser/fileapi/sandbox_context_unittest.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "webkit/browser/fileapi/sandbox_context.h"
+
+#include "base/basictypes.h"
+#include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/message_loop/message_loop_proxy.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+#include "webkit/browser/fileapi/file_system_url.h"
+#include "webkit/browser/fileapi/mock_file_system_options.h"
+
+namespace fileapi {
+
+namespace {
+
+FileSystemURL CreateFileSystemURL(const char* path) {
+  const GURL kOrigin("http://foo/");
+  return FileSystemURL::CreateForTest(
+      kOrigin, kFileSystemTypeTemporary, base::FilePath::FromUTF8Unsafe(path));
+}
+
+}  // namespace
+
+class SandboxContextTest : public testing::Test {
+ protected:
+  virtual void SetUp() {
+    ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
+    context_.reset(new SandboxContext(
+        NULL /* quota_manager_proxy */,
+        base::MessageLoopProxy::current().get(),
+        data_dir_.path(),
+        NULL /* special_storage_policy */,
+        CreateAllowFileAccessOptions()));
+  }
+
+  base::ScopedTempDir data_dir_;
+  base::MessageLoop message_loop_;
+  scoped_ptr<SandboxContext> context_;
+};
+
+TEST_F(SandboxContextTest, IsAccessValid) {
+  // Normal case.
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL("a")));
+
+  // Access to a path with parent references ('..') should be disallowed.
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL("a/../b")));
+
+  // Access from non-allowed scheme should be disallowed.
+  EXPECT_FALSE(context_->IsAccessValid(
+      FileSystemURL::CreateForTest(
+          GURL("unknown://bar"), kFileSystemTypeTemporary,
+          base::FilePath::FromUTF8Unsafe("foo"))));
+
+  // Access with restricted name should be disallowed.
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL(".")));
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL("..")));
+
+  // This is also disallowed due to Windows XP parent path handling.
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL("...")));
+
+  // These are identified as unsafe cases due to weird path handling
+  // on Windows.
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL(" ..")));
+  EXPECT_FALSE(context_->IsAccessValid(CreateFileSystemURL(".. ")));
+
+  // Similar but safe cases.
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL(" .")));
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL(". ")));
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL("b.")));
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL(".b")));
+
+  // A path that looks like a drive letter.
+  EXPECT_TRUE(context_->IsAccessValid(CreateFileSystemURL("c:")));
+}
+
+}  // namespace fileapi