1 files changed, 110 insertions, 0 deletions
diff --git a/webkit/browser/fileapi/syncable/syncable_file_system_util.cc b/webkit/browser/fileapi/syncable/syncable_file_system_util.cc
new file mode 100644
index 0000000..84ae92f
--- /dev/null
+++ b/webkit/browser/fileapi/syncable/syncable_file_system_util.cc
@@ -0,0 +1,110 @@
+// 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/syncable/syncable_file_system_util.h"
+
+#include "base/command_line.h"
+#include "webkit/browser/fileapi/external_mount_points.h"
+#include "webkit/browser/fileapi/file_observers.h"
+#include "webkit/browser/fileapi/file_system_context.h"
+#include "webkit/browser/fileapi/sandbox_mount_point_provider.h"
+#include "webkit/common/fileapi/file_system_util.h"
+
+using fileapi::ExternalMountPoints;
+using fileapi::FileSystemContext;
+using fileapi::FileSystemURL;
+using fileapi::LocalFileSystemOperation;
+
+namespace sync_file_system {
+
+namespace {
+
+// A command switch to enable syncing directory operations in Sync FileSystem
+// API. (http://crbug.com/161442)
+// TODO(kinuko): this command-line switch should be temporary.
+const char kEnableSyncFSDirectoryOperation[] =
+    "enable-syncfs-directory-operation";
+
+bool is_directory_operation_enabled = false;
+
+}
+
+bool RegisterSyncableFileSystem(const std::string& service_name) {
+  return ExternalMountPoints::GetSystemInstance()->RegisterFileSystem(
+      service_name, fileapi::kFileSystemTypeSyncable, base::FilePath());
+}
+
+bool RevokeSyncableFileSystem(const std::string& service_name) {
+  return ExternalMountPoints::GetSystemInstance()->RevokeFileSystem(
+      service_name);
+}
+
+GURL GetSyncableFileSystemRootURI(const GURL& origin,
+                                  const std::string& service_name) {
+  const GURL url = GetFileSystemRootURI(origin,
+                                        fileapi::kFileSystemTypeExternal);
+  const std::string path = service_name + "/";
+  url_canon::Replacements<char> replacements;
+  replacements.SetPath(path.c_str(), url_parse::Component(0, path.length()));
+  return url.ReplaceComponents(replacements);
+}
+
+FileSystemURL CreateSyncableFileSystemURL(const GURL& origin,
+                                          const std::string& service_name,
+                                          const base::FilePath& path) {
+  // Avoid using FilePath::Append as path may be an absolute path.
+  base::FilePath::StringType virtual_path =
+      base::FilePath::FromUTF8Unsafe(service_name + "/").value() +
+      path.value();
+  return ExternalMountPoints::GetSystemInstance()->CreateCrackedFileSystemURL(
+      origin,
+      fileapi::kFileSystemTypeExternal,
+      base::FilePath(virtual_path));
+}
+
+bool SerializeSyncableFileSystemURL(const FileSystemURL& url,
+                                    std::string* serialized_url) {
+  if (!url.is_valid() || url.type() != fileapi::kFileSystemTypeSyncable)
+    return false;
+  *serialized_url =
+      GetSyncableFileSystemRootURI(url.origin(), url.filesystem_id()).spec() +
+      url.path().AsUTF8Unsafe();
+  return true;
+}
+
+bool DeserializeSyncableFileSystemURL(
+    const std::string& serialized_url, FileSystemURL* url) {
+#if !defined(FILE_PATH_USES_WIN_SEPARATORS)
+  DCHECK(serialized_url.find('\\') == std::string::npos);
+#endif  // FILE_PATH_USES_WIN_SEPARATORS
+
+  FileSystemURL deserialized =
+      ExternalMountPoints::GetSystemInstance()->CrackURL(GURL(serialized_url));
+  if (!deserialized.is_valid() ||
+      deserialized.type() != fileapi::kFileSystemTypeSyncable) {
+    return false;
+  }
+
+  *url = deserialized;
+  return true;
+}
+
+LocalFileSystemOperation* CreateFileSystemOperationForSync(
+    FileSystemContext* file_system_context) {
+  DCHECK(file_system_context);
+  return file_system_context->sandbox_provider()->
+      CreateFileSystemOperationForSync(file_system_context);
+}
+
+void SetEnableSyncFSDirectoryOperation(bool flag) {
+  is_directory_operation_enabled = flag;
+}
+
+bool IsSyncFSDirectoryOperationEnabled() {
+  return is_directory_operation_enabled ||
+      CommandLine::ForCurrentProcess()->HasSwitch(
+          kEnableSyncFSDirectoryOperation);
+}
+
+}  // namespace sync_file_system