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// Copyright (c) 2010 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_QUOTA_MANAGER_H_
#define WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_MANAGER_H_
#include <set>
#include "base/basictypes.h"
#include "googleurl/src/gurl.h"
namespace fileapi {
// A quota manager for FileSystem. For now it has little implementation
// and just allows unlimited quota for apps.
class FileSystemQuotaManager {
public:
static const int64 kUnknownSize;
// If |allow_file_access_from_files| is true, unlimited access is granted
// for file:/// URLs.
// If |unlimited_quota| is true, unlimited access is granted for every
// origin. This flag must be used only for testing.
FileSystemQuotaManager(bool allow_file_access_from_files,
bool unlimited_quota);
~FileSystemQuotaManager();
// Checks if the origin can grow its usage by |growth| bytes.
// This only performs in-memory check and returns immediately.
// For now it just returns false for any origins (regardless of the size)
// that are not in the in-memory unlimited_quota_origins map.
bool CheckOriginQuota(const GURL& origin, int64 growth);
// Maintains origins in memory that are allowed to have unlimited quota.
void SetOriginQuotaUnlimited(const GURL& origin);
void ResetOriginQuotaUnlimited(const GURL& origin);
bool CheckIfOriginGrantedUnlimitedQuota(const GURL& origin);
private:
// For some extensions/apps we allow unlimited quota.
std::set<GURL> unlimited_quota_origins_;
const bool allow_file_access_from_files_;
const bool unlimited_quota_;
DISALLOW_COPY_AND_ASSIGN(FileSystemQuotaManager);
};
} // namespace fileapi
#endif // WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_MANAGER_H_
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