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// Copyright (c) 2011 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.
#ifndef WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
#define WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
#include <string>
#include <vector>
#include "base/file_path.h"
#include "googleurl/src/gurl.h"
#include "webkit/fileapi/file_system_path_manager.h"
#include "webkit/fileapi/file_system_types.h"
namespace fileapi {
// An interface to provide local filesystem paths.
class FileSystemMountPointProvider {
public:
virtual ~FileSystemMountPointProvider() {}
// Checks if access to |virtual_path| is allowed from |origin_url|.
virtual bool IsAccessAllowed(const GURL& origin_url,
FileSystemType type,
const FilePath& virtual_path) = 0;
// Retrieves the root path for the given |origin_url| and |type|, and
// calls the given |callback| with the root path and name.
// If |create| is true this also creates the directory if it doesn't exist.
virtual void ValidateFileSystemRootAndGetURL(
const GURL& origin_url,
FileSystemType type,
bool create,
FileSystemPathManager::GetRootPathCallback* callback) = 0;
// Like GetFileSystemRootPath, but synchronous, and can be called only while
// running on the file thread.
virtual FilePath ValidateFileSystemRootAndGetPathOnFileThread(
const GURL& origin_url,
FileSystemType type,
const FilePath& virtual_path,
bool create) = 0;
// Checks if a given |name| contains any restricted names/chars in it.
// Callable on any thread.
virtual bool IsRestrictedFileName(const FilePath& filename) const = 0;
// Returns the list of top level directories that are exposed by this
// provider. This list is used to set appropriate child process file access
// permissions.
virtual std::vector<FilePath> GetRootDirectories() const = 0;
};
// An interface to control external file system access permissions.
class ExternalFileSystemMountPointProvider
: public FileSystemMountPointProvider {
public:
// Grant access to all external file system from extension identified with
// |extension_id|.
virtual void GrantFullAccessToExtension(const std::string& extension_id) = 0;
// Grants access to |virtual_path| from |origin_url|.
virtual void GrantFileAccessToExtension(
const std::string& extension_id,
const FilePath& virtual_path) = 0;
// Revoke file access from extension identified with |extension_id|.
virtual void RevokeAccessForExtension(
const std::string& extension_id) = 0;
// Adds a new mount point.
virtual void AddMountPoint(FilePath mount_point) = 0;
// Remove a mount point.
virtual void RemoveMountPoint(FilePath mount_point) = 0;
};
} // namespace fileapi
#endif // WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
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